/* packet-ssl-utils.c * ssl manipulation functions * By Paolo Abeni * * Copyright (c) 2013, Hauke Mehrtens * Copyright (c) 2014, Peter Wu * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "config.h" #ifdef HAVE_LIBZ #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "packet-x509af.h" #include "packet-x509if.h" #include "packet-ssl-utils.h" #include "packet-ssl.h" #if defined(HAVE_LIBGNUTLS) && defined(HAVE_LIBGCRYPT) #include #endif /* Lookup tables {{{ */ const value_string ssl_version_short_names[] = { { SSL_VER_UNKNOWN, "SSL" }, { SSLV2_VERSION, "SSLv2" }, { SSLV3_VERSION, "SSLv3" }, { TLSV1_VERSION, "TLSv1" }, { TLSV1DOT1_VERSION, "TLSv1.1" }, { TLSV1DOT2_VERSION, "TLSv1.2" }, { DTLSV1DOT0_VERSION, "DTLSv1.0" }, { DTLSV1DOT2_VERSION, "DTLSv1.2" }, { DTLSV1DOT0_OPENSSL_VERSION, "DTLS 1.0 (OpenSSL pre 0.9.8f)" }, { PCT_VERSION, "PCT" }, { 0x00, NULL } }; const value_string ssl_20_msg_types[] = { { SSL2_HND_ERROR, "Error" }, { SSL2_HND_CLIENT_HELLO, "Client Hello" }, { SSL2_HND_CLIENT_MASTER_KEY, "Client Master Key" }, { SSL2_HND_CLIENT_FINISHED, "Client Finished" }, { SSL2_HND_SERVER_HELLO, "Server Hello" }, { SSL2_HND_SERVER_VERIFY, "Server Verify" }, { SSL2_HND_SERVER_FINISHED, "Server Finished" }, { SSL2_HND_REQUEST_CERTIFICATE, "Request Certificate" }, { SSL2_HND_CLIENT_CERTIFICATE, "Client Certificate" }, { 0x00, NULL } }; /* http://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml */ /* Note: sorted by ascending value so value_string-ext can do a binary search */ static const value_string ssl_20_cipher_suites[] = { { 0x000000, "TLS_NULL_WITH_NULL_NULL" }, { 0x000001, "TLS_RSA_WITH_NULL_MD5" }, { 0x000002, "TLS_RSA_WITH_NULL_SHA" }, { 0x000003, "TLS_RSA_EXPORT_WITH_RC4_40_MD5" }, { 0x000004, "TLS_RSA_WITH_RC4_128_MD5" }, { 0x000005, "TLS_RSA_WITH_RC4_128_SHA" }, { 0x000006, "TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5" }, { 0x000007, "TLS_RSA_WITH_IDEA_CBC_SHA" }, { 0x000008, "TLS_RSA_EXPORT_WITH_DES40_CBC_SHA" }, { 0x000009, "TLS_RSA_WITH_DES_CBC_SHA" }, { 0x00000a, "TLS_RSA_WITH_3DES_EDE_CBC_SHA" }, { 0x00000b, "TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA" }, { 0x00000c, "TLS_DH_DSS_WITH_DES_CBC_SHA" }, { 0x00000d, "TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA" }, { 0x00000e, "TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA" }, { 0x00000f, "TLS_DH_RSA_WITH_DES_CBC_SHA" }, { 0x000010, "TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA" }, { 0x000011, "TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA" }, { 0x000012, "TLS_DHE_DSS_WITH_DES_CBC_SHA" }, { 0x000013, "TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA" }, { 0x000014, "TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA" }, { 0x000015, "TLS_DHE_RSA_WITH_DES_CBC_SHA" }, { 0x000016, "TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA" }, { 0x000017, "TLS_DH_anon_EXPORT_WITH_RC4_40_MD5" }, { 0x000018, "TLS_DH_anon_WITH_RC4_128_MD5" }, { 0x000019, "TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA" }, { 0x00001a, "TLS_DH_anon_WITH_DES_CBC_SHA" }, { 0x00001b, "TLS_DH_anon_WITH_3DES_EDE_CBC_SHA" }, { 0x00001c, "SSL_FORTEZZA_KEA_WITH_NULL_SHA" }, { 0x00001d, "SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA" }, #if 0 { 0x00001e, "SSL_FORTEZZA_KEA_WITH_RC4_128_SHA" }, #endif /* RFC 2712 */ { 0x00001E, "TLS_KRB5_WITH_DES_CBC_SHA" }, { 0x00001F, "TLS_KRB5_WITH_3DES_EDE_CBC_SHA" }, { 0x000020, "TLS_KRB5_WITH_RC4_128_SHA" }, { 0x000021, "TLS_KRB5_WITH_IDEA_CBC_SHA" }, { 0x000022, "TLS_KRB5_WITH_DES_CBC_MD5" }, { 0x000023, "TLS_KRB5_WITH_3DES_EDE_CBC_MD5" }, { 0x000024, "TLS_KRB5_WITH_RC4_128_MD5" }, { 0x000025, "TLS_KRB5_WITH_IDEA_CBC_MD5" }, { 0x000026, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA" }, { 0x000027, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA" }, { 0x000028, "TLS_KRB5_EXPORT_WITH_RC4_40_SHA" }, { 0x000029, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5" }, { 0x00002A, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5" }, { 0x00002B, "TLS_KRB5_EXPORT_WITH_RC4_40_MD5" }, /* RFC 4785 */ { 0x00002C, "TLS_PSK_WITH_NULL_SHA" }, { 0x00002D, "TLS_DHE_PSK_WITH_NULL_SHA" }, { 0x00002E, "TLS_RSA_PSK_WITH_NULL_SHA" }, /* RFC 5246 */ { 0x00002f, "TLS_RSA_WITH_AES_128_CBC_SHA" }, { 0x000030, "TLS_DH_DSS_WITH_AES_128_CBC_SHA" }, { 0x000031, "TLS_DH_RSA_WITH_AES_128_CBC_SHA" }, { 0x000032, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA" }, { 0x000033, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA" }, { 0x000034, "TLS_DH_anon_WITH_AES_128_CBC_SHA" }, { 0x000035, "TLS_RSA_WITH_AES_256_CBC_SHA" }, { 0x000036, "TLS_DH_DSS_WITH_AES_256_CBC_SHA" }, { 0x000037, "TLS_DH_RSA_WITH_AES_256_CBC_SHA" }, { 0x000038, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA" }, { 0x000039, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA" }, { 0x00003A, "TLS_DH_anon_WITH_AES_256_CBC_SHA" }, { 0x00003B, "TLS_RSA_WITH_NULL_SHA256" }, { 0x00003C, "TLS_RSA_WITH_AES_128_CBC_SHA256" }, { 0x00003D, "TLS_RSA_WITH_AES_256_CBC_SHA256" }, { 0x00003E, "TLS_DH_DSS_WITH_AES_128_CBC_SHA256" }, { 0x00003F, "TLS_DH_RSA_WITH_AES_128_CBC_SHA256" }, { 0x000040, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA256" }, { 0x000041, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA" }, { 0x000042, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA" }, { 0x000043, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA" }, { 0x000044, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA" }, { 0x000045, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA" }, { 0x000046, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA" }, { 0x000047, "TLS_ECDH_ECDSA_WITH_NULL_SHA" }, { 0x000048, "TLS_ECDH_ECDSA_WITH_RC4_128_SHA" }, { 0x000049, "TLS_ECDH_ECDSA_WITH_DES_CBC_SHA" }, { 0x00004A, "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA" }, { 0x00004B, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA" }, { 0x00004C, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA" }, { 0x000060, "TLS_RSA_EXPORT1024_WITH_RC4_56_MD5" }, { 0x000061, "TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5" }, { 0x000062, "TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA" }, { 0x000063, "TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA" }, { 0x000064, "TLS_RSA_EXPORT1024_WITH_RC4_56_SHA" }, { 0x000065, "TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA" }, { 0x000066, "TLS_DHE_DSS_WITH_RC4_128_SHA" }, { 0x000067, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA256" }, { 0x000068, "TLS_DH_DSS_WITH_AES_256_CBC_SHA256" }, { 0x000069, "TLS_DH_RSA_WITH_AES_256_CBC_SHA256" }, { 0x00006A, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA256" }, { 0x00006B, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256" }, { 0x00006C, "TLS_DH_anon_WITH_AES_128_CBC_SHA256" }, { 0x00006D, "TLS_DH_anon_WITH_AES_256_CBC_SHA256" }, /* 0x00,0x6E-83 Unassigned */ { 0x000084, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA" }, { 0x000085, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA" }, { 0x000086, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA" }, { 0x000087, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA" }, { 0x000088, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA" }, { 0x000089, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA" }, /* RFC 4279 */ { 0x00008A, "TLS_PSK_WITH_RC4_128_SHA" }, { 0x00008B, "TLS_PSK_WITH_3DES_EDE_CBC_SHA" }, { 0x00008C, "TLS_PSK_WITH_AES_128_CBC_SHA" }, { 0x00008D, "TLS_PSK_WITH_AES_256_CBC_SHA" }, { 0x00008E, "TLS_DHE_PSK_WITH_RC4_128_SHA" }, { 0x00008F, "TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA" }, { 0x000090, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA" }, { 0x000091, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA" }, { 0x000092, "TLS_RSA_PSK_WITH_RC4_128_SHA" }, { 0x000093, "TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA" }, { 0x000094, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA" }, { 0x000095, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA" }, /* RFC 4162 */ { 0x000096, "TLS_RSA_WITH_SEED_CBC_SHA" }, { 0x000097, "TLS_DH_DSS_WITH_SEED_CBC_SHA" }, { 0x000098, "TLS_DH_RSA_WITH_SEED_CBC_SHA" }, { 0x000099, "TLS_DHE_DSS_WITH_SEED_CBC_SHA" }, { 0x00009A, "TLS_DHE_RSA_WITH_SEED_CBC_SHA" }, { 0x00009B, "TLS_DH_anon_WITH_SEED_CBC_SHA" }, /* RFC 5288 */ { 0x00009C, "TLS_RSA_WITH_AES_128_GCM_SHA256" }, { 0x00009D, "TLS_RSA_WITH_AES_256_GCM_SHA384" }, { 0x00009E, "TLS_DHE_RSA_WITH_AES_128_GCM_SHA256" }, { 0x00009F, "TLS_DHE_RSA_WITH_AES_256_GCM_SHA384" }, { 0x0000A0, "TLS_DH_RSA_WITH_AES_128_GCM_SHA256" }, { 0x0000A1, "TLS_DH_RSA_WITH_AES_256_GCM_SHA384" }, { 0x0000A2, "TLS_DHE_DSS_WITH_AES_128_GCM_SHA256" }, { 0x0000A3, "TLS_DHE_DSS_WITH_AES_256_GCM_SHA384" }, { 0x0000A4, "TLS_DH_DSS_WITH_AES_128_GCM_SHA256" }, { 0x0000A5, "TLS_DH_DSS_WITH_AES_256_GCM_SHA384" }, { 0x0000A6, "TLS_DH_anon_WITH_AES_128_GCM_SHA256" }, { 0x0000A7, "TLS_DH_anon_WITH_AES_256_GCM_SHA384" }, /* RFC 5487 */ { 0x0000A8, "TLS_PSK_WITH_AES_128_GCM_SHA256" }, { 0x0000A9, "TLS_PSK_WITH_AES_256_GCM_SHA384" }, { 0x0000AA, "TLS_DHE_PSK_WITH_AES_128_GCM_SHA256" }, { 0x0000AB, "TLS_DHE_PSK_WITH_AES_256_GCM_SHA384" }, { 0x0000AC, "TLS_RSA_PSK_WITH_AES_128_GCM_SHA256" }, { 0x0000AD, "TLS_RSA_PSK_WITH_AES_256_GCM_SHA384" }, { 0x0000AE, "TLS_PSK_WITH_AES_128_CBC_SHA256" }, { 0x0000AF, "TLS_PSK_WITH_AES_256_CBC_SHA384" }, { 0x0000B0, "TLS_PSK_WITH_NULL_SHA256" }, { 0x0000B1, "TLS_PSK_WITH_NULL_SHA384" }, { 0x0000B2, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA256" }, { 0x0000B3, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA384" }, { 0x0000B4, "TLS_DHE_PSK_WITH_NULL_SHA256" }, { 0x0000B5, "TLS_DHE_PSK_WITH_NULL_SHA384" }, { 0x0000B6, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA256" }, { 0x0000B7, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA384" }, { 0x0000B8, "TLS_RSA_PSK_WITH_NULL_SHA256" }, { 0x0000B9, "TLS_RSA_PSK_WITH_NULL_SHA384" }, /* From RFC 5932 */ { 0x0000BA, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256" }, { 0x0000BB, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256" }, { 0x0000BC, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256" }, { 0x0000BD, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256" }, { 0x0000BE, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256" }, { 0x0000BF, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256" }, { 0x0000C0, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256" }, { 0x0000C1, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256" }, { 0x0000C2, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256" }, { 0x0000C3, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256" }, { 0x0000C4, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256" }, { 0x0000C5, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256" }, /* 0x00,0xC6-FE Unassigned */ { 0x0000FF, "TLS_EMPTY_RENEGOTIATION_INFO_SCSV" }, /* 0x01-BF,* Unassigned */ /* From RFC 4492 */ { 0x00c001, "TLS_ECDH_ECDSA_WITH_NULL_SHA" }, { 0x00c002, "TLS_ECDH_ECDSA_WITH_RC4_128_SHA" }, { 0x00c003, "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA" }, { 0x00c004, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA" }, { 0x00c005, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA" }, { 0x00c006, "TLS_ECDHE_ECDSA_WITH_NULL_SHA" }, { 0x00c007, "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA" }, { 0x00c008, "TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA" }, { 0x00c009, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA" }, { 0x00c00a, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA" }, { 0x00c00b, "TLS_ECDH_RSA_WITH_NULL_SHA" }, { 0x00c00c, "TLS_ECDH_RSA_WITH_RC4_128_SHA" }, { 0x00c00d, "TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA" }, { 0x00c00e, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA" }, { 0x00c00f, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA" }, { 0x00c010, "TLS_ECDHE_RSA_WITH_NULL_SHA" }, { 0x00c011, "TLS_ECDHE_RSA_WITH_RC4_128_SHA" }, { 0x00c012, "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA" }, { 0x00c013, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA" }, { 0x00c014, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA" }, { 0x00c015, "TLS_ECDH_anon_WITH_NULL_SHA" }, { 0x00c016, "TLS_ECDH_anon_WITH_RC4_128_SHA" }, { 0x00c017, "TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA" }, { 0x00c018, "TLS_ECDH_anon_WITH_AES_128_CBC_SHA" }, { 0x00c019, "TLS_ECDH_anon_WITH_AES_256_CBC_SHA" }, /* RFC 5054 */ { 0x00C01A, "TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA" }, { 0x00C01B, "TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA" }, { 0x00C01C, "TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA" }, { 0x00C01D, "TLS_SRP_SHA_WITH_AES_128_CBC_SHA" }, { 0x00C01E, "TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA" }, { 0x00C01F, "TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA" }, { 0x00C020, "TLS_SRP_SHA_WITH_AES_256_CBC_SHA" }, { 0x00C021, "TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA" }, { 0x00C022, "TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA" }, /* RFC 5589 */ { 0x00C023, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256" }, { 0x00C024, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384" }, { 0x00C025, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256" }, { 0x00C026, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384" }, { 0x00C027, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256" }, { 0x00C028, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384" }, { 0x00C029, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256" }, { 0x00C02A, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384" }, { 0x00C02B, "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256" }, { 0x00C02C, "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384" }, { 0x00C02D, "TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256" }, { 0x00C02E, "TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384" }, { 0x00C02F, "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256" }, { 0x00C030, "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384" }, { 0x00C031, "TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256" }, { 0x00C032, "TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384" }, /* RFC 5489 */ { 0x00C033, "TLS_ECDHE_PSK_WITH_RC4_128_SHA" }, { 0x00C034, "TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA" }, { 0x00C035, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA" }, { 0x00C036, "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA" }, { 0x00C037, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256" }, { 0x00C038, "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384" }, { 0x00C039, "TLS_ECDHE_PSK_WITH_NULL_SHA" }, { 0x00C03A, "TLS_ECDHE_PSK_WITH_NULL_SHA256" }, { 0x00C03B, "TLS_ECDHE_PSK_WITH_NULL_SHA384" }, /* 0xC0,0x3C-FF Unassigned 0xC1-FD,* Unassigned 0xFE,0x00-FD Unassigned 0xFE,0xFE-FF Reserved to avoid conflicts with widely deployed implementations [Pasi_Eronen] 0xFF,0x00-FF Reserved for Private Use [RFC5246] */ /* http://tools.ietf.org/html/draft-agl-tls-chacha20poly1305 */ { 0x00CC13, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256" }, { 0x00CC14, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256" }, { 0x00CC15, "TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256" }, /* http://tools.ietf.org/html/draft-josefsson-salsa20-tls */ { 0x00E410, "TLS_RSA_WITH_ESTREAM_SALSA20_SHA1" }, { 0x00E411, "TLS_RSA_WITH_SALSA20_SHA1" }, { 0x00E412, "TLS_ECDHE_RSA_WITH_ESTREAM_SALSA20_SHA1" }, { 0x00E413, "TLS_ECDHE_RSA_WITH_SALSA20_SHA1" }, { 0x00E414, "TLS_ECDHE_ECDSA_WITH_ESTREAM_SALSA20_SHA1" }, { 0x00E415, "TLS_ECDHE_ECDSA_WITH_SALSA20_SHA1" }, { 0x00E416, "TLS_PSK_WITH_ESTREAM_SALSA20_SHA1" }, { 0x00E417, "TLS_PSK_WITH_SALSA20_SHA1" }, { 0x00E418, "TLS_ECDHE_PSK_WITH_ESTREAM_SALSA20_SHA1" }, { 0x00E419, "TLS_ECDHE_PSK_WITH_SALSA20_SHA1" }, { 0x00E41A, "TLS_RSA_PSK_WITH_ESTREAM_SALSA20_SHA1" }, { 0x00E41B, "TLS_RSA_PSK_WITH_SALSA20_SHA1" }, { 0x00E41C, "TLS_DHE_PSK_WITH_ESTREAM_SALSA20_SHA1" }, { 0x00E41D, "TLS_DHE_PSK_WITH_SALSA20_SHA1" }, { 0x00E41E, "TLS_DHE_RSA_WITH_ESTREAM_SALSA20_SHA1" }, { 0x00E41F, "TLS_DHE_RSA_WITH_SALSA20_SHA1" }, /* these from http://www.mozilla.org/projects/ security/pki/nss/ssl/fips-ssl-ciphersuites.html */ { 0x00fefe, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"}, { 0x00feff, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA" }, { 0x00ffe0, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA" }, { 0x00ffe1, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"}, /* note that ciphersuites of {0x00????} are TLS cipher suites in * a sslv2 client hello message; the ???? above is the two-byte * tls cipher suite id */ { 0x010080, "SSL2_RC4_128_WITH_MD5" }, { 0x020080, "SSL2_RC4_128_EXPORT40_WITH_MD5" }, { 0x030080, "SSL2_RC2_CBC_128_CBC_WITH_MD5" }, { 0x040080, "SSL2_RC2_CBC_128_CBC_WITH_MD5" }, { 0x050080, "SSL2_IDEA_128_CBC_WITH_MD5" }, { 0x060040, "SSL2_DES_64_CBC_WITH_MD5" }, { 0x0700c0, "SSL2_DES_192_EDE3_CBC_WITH_MD5" }, { 0x080080, "SSL2_RC4_64_WITH_MD5" }, /* Microsoft's old PCT protocol. These are from Eric Rescorla's book "SSL and TLS" */ { 0x800001, "PCT_SSL_CERT_TYPE | PCT1_CERT_X509" }, { 0x800003, "PCT_SSL_CERT_TYPE | PCT1_CERT_X509_CHAIN" }, { 0x810001, "PCT_SSL_HASH_TYPE | PCT1_HASH_MD5" }, { 0x810003, "PCT_SSL_HASH_TYPE | PCT1_HASH_SHA" }, { 0x820001, "PCT_SSL_EXCH_TYPE | PCT1_EXCH_RSA_PKCS1" }, { 0x830004, "PCT_SSL_CIPHER_TYPE_1ST_HALF | PCT1_CIPHER_RC4" }, { 0x842840, "PCT_SSL_CIPHER_TYPE_2ND_HALF | PCT1_ENC_BITS_40 | PCT1_MAC_BITS_128" }, { 0x848040, "PCT_SSL_CIPHER_TYPE_2ND_HALF | PCT1_ENC_BITS_128 | PCT1_MAC_BITS_128" }, { 0x8f8001, "PCT_SSL_COMPAT | PCT_VERSION_1" }, { 0x00, NULL } }; value_string_ext ssl_20_cipher_suites_ext = VALUE_STRING_EXT_INIT(ssl_20_cipher_suites); const value_string ssl_extension_curves[] = { { 1, "sect163k1" }, { 2, "sect163r1" }, { 3, "sect163r2" }, { 4, "sect193r1" }, { 5, "sect193r2" }, { 6, "sect233k1" }, { 7, "sect233r1" }, { 8, "sect239k1" }, { 9, "sect283k1" }, { 10, "sect283r1" }, { 11, "sect409k1" }, { 12, "sect409r1" }, { 13, "sect571k1" }, { 14, "sect571r1" }, { 15, "secp160k1" }, { 16, "secp160r1" }, { 17, "secp160r2" }, { 18, "secp192k1" }, { 19, "secp192r1" }, { 20, "secp224k1" }, { 21, "secp224r1" }, { 22, "secp256k1" }, { 23, "secp256r1" }, { 24, "secp384r1" }, { 25, "secp521r1" }, { 26, "brainpoolP256r1" }, /* RFC 7027 */ { 27, "brainpoolP384r1" }, /* RFC 7027 */ { 28, "brainpoolP512r1" }, /* RFC 7027 */ { 0xFF01, "arbitrary_explicit_prime_curves" }, { 0xFF02, "arbitrary_explicit_char2_curves" }, { 0x00, NULL } }; const value_string ssl_curve_types[] = { { 1, "explicit_prime" }, { 2, "explicit_char2" }, { 3, "named_curve" }, { 0x00, NULL } }; const value_string ssl_extension_ec_point_formats[] = { { 0, "uncompressed" }, { 1, "ansiX962_compressed_prime" }, { 2, "ansiX962_compressed_char2" }, { 0x00, NULL } }; const value_string ssl_20_certificate_type[] = { { 0x00, "N/A" }, { 0x01, "X.509 Certificate" }, { 0x00, NULL } }; const value_string ssl_31_content_type[] = { { 20, "Change Cipher Spec" }, { 21, "Alert" }, { 22, "Handshake" }, { 23, "Application Data" }, { 24, "Heartbeat" }, { 0x00, NULL } }; const value_string ssl_versions[] = { { 0xfefd, "DTLS 1.2" }, { 0xfeff, "DTLS 1.0" }, { 0x0100, "DTLS 1.0 (OpenSSL pre 0.9.8f)" }, { 0x0303, "TLS 1.2" }, { 0x0302, "TLS 1.1" }, { 0x0301, "TLS 1.0" }, { 0x0300, "SSL 3.0" }, { 0x0002, "SSL 2.0" }, { 0x00, NULL } }; #if 0 /* XXX - would be used if we dissected the body of a Change Cipher Spec message. */ const value_string ssl_31_change_cipher_spec[] = { { 1, "Change Cipher Spec" }, { 0x00, NULL } }; #endif const value_string ssl_31_alert_level[] = { { 1, "Warning" }, { 2, "Fatal" }, { 0x00, NULL } }; const value_string ssl_31_alert_description[] = { { 0, "Close Notify" }, { 10, "Unexpected Message" }, { 20, "Bad Record MAC" }, { 21, "Decryption Failed" }, { 22, "Record Overflow" }, { 30, "Decompression Failure" }, { 40, "Handshake Failure" }, { 41, "No Certificate" }, { 42, "Bad Certificate" }, { 43, "Unsupported Certificate" }, { 44, "Certificate Revoked" }, { 45, "Certificate Expired" }, { 46, "Certificate Unknown" }, { 47, "Illegal Parameter" }, { 48, "Unknown CA" }, { 49, "Access Denied" }, { 50, "Decode Error" }, { 51, "Decrypt Error" }, { 60, "Export Restriction" }, { 70, "Protocol Version" }, { 71, "Insufficient Security" }, { 80, "Internal Error" }, { 86, "Inappropriate Fallback" }, { 90, "User Canceled" }, { 100, "No Renegotiation" }, { 110, "Unsupported Extension" }, { 111, "Certificate Unobtainable" }, { 112, "Unrecognized Name" }, { 113, "Bad Certificate Status Response" }, { 114, "Bad Certificate Hash Value" }, { 115, "Unknown PSK Identity" }, { 120, "No application Protocol" }, { 0x00, NULL } }; const value_string ssl_31_handshake_type[] = { { SSL_HND_HELLO_REQUEST, "Hello Request" }, { SSL_HND_CLIENT_HELLO, "Client Hello" }, { SSL_HND_SERVER_HELLO, "Server Hello" }, { SSL_HND_HELLO_VERIFY_REQUEST, "Hello Verify Request"}, { SSL_HND_NEWSESSION_TICKET, "New Session Ticket" }, { SSL_HND_CERTIFICATE, "Certificate" }, { SSL_HND_SERVER_KEY_EXCHG, "Server Key Exchange" }, { SSL_HND_CERT_REQUEST, "Certificate Request" }, { SSL_HND_SVR_HELLO_DONE, "Server Hello Done" }, { SSL_HND_CERT_VERIFY, "Certificate Verify" }, { SSL_HND_CLIENT_KEY_EXCHG, "Client Key Exchange" }, { SSL_HND_FINISHED, "Finished" }, { SSL_HND_CERT_URL, "Client Certificate URL" }, { SSL_HND_CERT_STATUS, "Certificate Status" }, { SSL_HND_SUPPLEMENTAL_DATA, "Supplemental Data" }, { SSL_HND_ENCRYPTED_EXTS, "Encrypted Extensions" }, { 0x00, NULL } }; const value_string tls_heartbeat_type[] = { { 1, "Request" }, { 2, "Response" }, { 0x00, NULL } }; const value_string tls_heartbeat_mode[] = { { 1, "Peer allowed to send requests" }, { 2, "Peer not allowed to send requests" }, { 0x00, NULL } }; const value_string ssl_31_compression_method[] = { { 0, "null" }, { 1, "DEFLATE" }, { 64, "LZS" }, { 0x00, NULL } }; #if 0 /* XXX - would be used if we dissected a Signature, as would be seen in a server key exchange or certificate verify message. */ const value_string ssl_31_key_exchange_algorithm[] = { { 0, "RSA" }, { 1, "Diffie Hellman" }, { 0x00, NULL } }; const value_string ssl_31_signature_algorithm[] = { { 0, "Anonymous" }, { 1, "RSA" }, { 2, "DSA" }, { 0x00, NULL } }; #endif const value_string ssl_31_client_certificate_type[] = { { 1, "RSA Sign" }, { 2, "DSS Sign" }, { 3, "RSA Fixed DH" }, { 4, "DSS Fixed DH" }, /* GOST certificate types */ /* Section 3.5 of draft-chudov-cryptopro-cptls-04 */ { 21, "GOST R 34.10-94" }, { 22, "GOST R 34.10-2001" }, /* END GOST certificate types */ { 64, "ECDSA Sign" }, { 65, "RSA Fixed ECDH" }, { 66, "ECDSA Fixed ECDH" }, { 0x00, NULL } }; #if 0 /* XXX - would be used if we dissected exchange keys, as would be seen in a client key exchange message. */ const value_string ssl_31_public_value_encoding[] = { { 0, "Implicit" }, { 1, "Explicit" }, { 0x00, NULL } }; #endif /* http://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml */ /* Note: sorted by ascending value so value_string_ext fcns can do a binary search */ static const value_string ssl_31_ciphersuite[] = { /* RFC 2246, RFC 4346, RFC 5246 */ { 0x0000, "TLS_NULL_WITH_NULL_NULL" }, { 0x0001, "TLS_RSA_WITH_NULL_MD5" }, { 0x0002, "TLS_RSA_WITH_NULL_SHA" }, { 0x0003, "TLS_RSA_EXPORT_WITH_RC4_40_MD5" }, { 0x0004, "TLS_RSA_WITH_RC4_128_MD5" }, { 0x0005, "TLS_RSA_WITH_RC4_128_SHA" }, { 0x0006, "TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5" }, { 0x0007, "TLS_RSA_WITH_IDEA_CBC_SHA" }, { 0x0008, "TLS_RSA_EXPORT_WITH_DES40_CBC_SHA" }, { 0x0009, "TLS_RSA_WITH_DES_CBC_SHA" }, { 0x000a, "TLS_RSA_WITH_3DES_EDE_CBC_SHA" }, { 0x000b, "TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA" }, { 0x000c, "TLS_DH_DSS_WITH_DES_CBC_SHA" }, { 0x000d, "TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA" }, { 0x000e, "TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA" }, { 0x000f, "TLS_DH_RSA_WITH_DES_CBC_SHA" }, { 0x0010, "TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA" }, { 0x0011, "TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA" }, { 0x0012, "TLS_DHE_DSS_WITH_DES_CBC_SHA" }, { 0x0013, "TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA" }, { 0x0014, "TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA" }, { 0x0015, "TLS_DHE_RSA_WITH_DES_CBC_SHA" }, { 0x0016, "TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA" }, { 0x0017, "TLS_DH_anon_EXPORT_WITH_RC4_40_MD5" }, { 0x0018, "TLS_DH_anon_WITH_RC4_128_MD5" }, { 0x0019, "TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA" }, { 0x001a, "TLS_DH_anon_WITH_DES_CBC_SHA" }, { 0x001b, "TLS_DH_anon_WITH_3DES_EDE_CBC_SHA" }, { 0x001c, "SSL_FORTEZZA_KEA_WITH_NULL_SHA" }, { 0x001d, "SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA" }, #if 0 /* Because it clashes with KRB5, is never used any more, and is safe to remove according to David Hopwood of the ietf-tls list */ { 0x001e, "SSL_FORTEZZA_KEA_WITH_RC4_128_SHA" }, #endif /* RFC 2712 */ { 0x001E, "TLS_KRB5_WITH_DES_CBC_SHA" }, { 0x001F, "TLS_KRB5_WITH_3DES_EDE_CBC_SHA" }, { 0x0020, "TLS_KRB5_WITH_RC4_128_SHA" }, { 0x0021, "TLS_KRB5_WITH_IDEA_CBC_SHA" }, { 0x0022, "TLS_KRB5_WITH_DES_CBC_MD5" }, { 0x0023, "TLS_KRB5_WITH_3DES_EDE_CBC_MD5" }, { 0x0024, "TLS_KRB5_WITH_RC4_128_MD5" }, { 0x0025, "TLS_KRB5_WITH_IDEA_CBC_MD5" }, { 0x0026, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA" }, { 0x0027, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA" }, { 0x0028, "TLS_KRB5_EXPORT_WITH_RC4_40_SHA" }, { 0x0029, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5" }, { 0x002A, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5" }, { 0x002B, "TLS_KRB5_EXPORT_WITH_RC4_40_MD5" }, /* RFC 4785 */ { 0x002C, "TLS_PSK_WITH_NULL_SHA" }, { 0x002D, "TLS_DHE_PSK_WITH_NULL_SHA" }, { 0x002E, "TLS_RSA_PSK_WITH_NULL_SHA" }, /* RFC 5246 */ { 0x002F, "TLS_RSA_WITH_AES_128_CBC_SHA" }, { 0x0030, "TLS_DH_DSS_WITH_AES_128_CBC_SHA" }, { 0x0031, "TLS_DH_RSA_WITH_AES_128_CBC_SHA" }, { 0x0032, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA" }, { 0x0033, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA" }, { 0x0034, "TLS_DH_anon_WITH_AES_128_CBC_SHA" }, { 0x0035, "TLS_RSA_WITH_AES_256_CBC_SHA" }, { 0x0036, "TLS_DH_DSS_WITH_AES_256_CBC_SHA" }, { 0x0037, "TLS_DH_RSA_WITH_AES_256_CBC_SHA" }, { 0x0038, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA" }, { 0x0039, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA" }, { 0x003A, "TLS_DH_anon_WITH_AES_256_CBC_SHA" }, { 0x003B, "TLS_RSA_WITH_NULL_SHA256" }, { 0x003C, "TLS_RSA_WITH_AES_128_CBC_SHA256" }, { 0x003D, "TLS_RSA_WITH_AES_256_CBC_SHA256" }, { 0x003E, "TLS_DH_DSS_WITH_AES_128_CBC_SHA256" }, { 0x003F, "TLS_DH_RSA_WITH_AES_128_CBC_SHA256" }, { 0x0040, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA256" }, /* RFC 4132 */ { 0x0041, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA" }, { 0x0042, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA" }, { 0x0043, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA" }, { 0x0044, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA" }, { 0x0045, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA" }, { 0x0046, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA" }, /* 0x00,0x60-66 Reserved to avoid conflicts with widely deployed implementations */ /* --- ??? --- */ { 0x0060, "TLS_RSA_EXPORT1024_WITH_RC4_56_MD5" }, { 0x0061, "TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5" }, /* draft-ietf-tls-56-bit-ciphersuites-01.txt */ { 0x0062, "TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA" }, { 0x0063, "TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA" }, { 0x0064, "TLS_RSA_EXPORT1024_WITH_RC4_56_SHA" }, { 0x0065, "TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA" }, { 0x0066, "TLS_DHE_DSS_WITH_RC4_128_SHA" }, /* --- ??? ---*/ { 0x0067, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA256" }, { 0x0068, "TLS_DH_DSS_WITH_AES_256_CBC_SHA256" }, { 0x0069, "TLS_DH_RSA_WITH_AES_256_CBC_SHA256" }, { 0x006A, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA256" }, { 0x006B, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256" }, { 0x006C, "TLS_DH_anon_WITH_AES_128_CBC_SHA256" }, { 0x006D, "TLS_DH_anon_WITH_AES_256_CBC_SHA256" }, /* draft-chudov-cryptopro-cptls-04.txt */ { 0x0080, "TLS_GOSTR341094_WITH_28147_CNT_IMIT" }, { 0x0081, "TLS_GOSTR341001_WITH_28147_CNT_IMIT" }, { 0x0082, "TLS_GOSTR341094_WITH_NULL_GOSTR3411" }, { 0x0083, "TLS_GOSTR341001_WITH_NULL_GOSTR3411" }, /* RFC 4132 */ { 0x0084, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA" }, { 0x0085, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA" }, { 0x0086, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA" }, { 0x0087, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA" }, { 0x0088, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA" }, { 0x0089, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA" }, /* RFC 4279 */ { 0x008A, "TLS_PSK_WITH_RC4_128_SHA" }, { 0x008B, "TLS_PSK_WITH_3DES_EDE_CBC_SHA" }, { 0x008C, "TLS_PSK_WITH_AES_128_CBC_SHA" }, { 0x008D, "TLS_PSK_WITH_AES_256_CBC_SHA" }, { 0x008E, "TLS_DHE_PSK_WITH_RC4_128_SHA" }, { 0x008F, "TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA" }, { 0x0090, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA" }, { 0x0091, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA" }, { 0x0092, "TLS_RSA_PSK_WITH_RC4_128_SHA" }, { 0x0093, "TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA" }, { 0x0094, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA" }, { 0x0095, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA" }, /* RFC 4162 */ { 0x0096, "TLS_RSA_WITH_SEED_CBC_SHA" }, { 0x0097, "TLS_DH_DSS_WITH_SEED_CBC_SHA" }, { 0x0098, "TLS_DH_RSA_WITH_SEED_CBC_SHA" }, { 0x0099, "TLS_DHE_DSS_WITH_SEED_CBC_SHA" }, { 0x009A, "TLS_DHE_RSA_WITH_SEED_CBC_SHA" }, { 0x009B, "TLS_DH_anon_WITH_SEED_CBC_SHA" }, /* RFC 5288 */ { 0x009C, "TLS_RSA_WITH_AES_128_GCM_SHA256" }, { 0x009D, "TLS_RSA_WITH_AES_256_GCM_SHA384" }, { 0x009E, "TLS_DHE_RSA_WITH_AES_128_GCM_SHA256" }, { 0x009F, "TLS_DHE_RSA_WITH_AES_256_GCM_SHA384" }, { 0x00A0, "TLS_DH_RSA_WITH_AES_128_GCM_SHA256" }, { 0x00A1, "TLS_DH_RSA_WITH_AES_256_GCM_SHA384" }, { 0x00A2, "TLS_DHE_DSS_WITH_AES_128_GCM_SHA256" }, { 0x00A3, "TLS_DHE_DSS_WITH_AES_256_GCM_SHA384" }, { 0x00A4, "TLS_DH_DSS_WITH_AES_128_GCM_SHA256" }, { 0x00A5, "TLS_DH_DSS_WITH_AES_256_GCM_SHA384" }, { 0x00A6, "TLS_DH_anon_WITH_AES_128_GCM_SHA256" }, { 0x00A7, "TLS_DH_anon_WITH_AES_256_GCM_SHA384" }, /* RFC 5487 */ { 0x00A8, "TLS_PSK_WITH_AES_128_GCM_SHA256" }, { 0x00A9, "TLS_PSK_WITH_AES_256_GCM_SHA384" }, { 0x00AA, "TLS_DHE_PSK_WITH_AES_128_GCM_SHA256" }, { 0x00AB, "TLS_DHE_PSK_WITH_AES_256_GCM_SHA384" }, { 0x00AC, "TLS_RSA_PSK_WITH_AES_128_GCM_SHA256" }, { 0x00AD, "TLS_RSA_PSK_WITH_AES_256_GCM_SHA384" }, { 0x00AE, "TLS_PSK_WITH_AES_128_CBC_SHA256" }, { 0x00AF, "TLS_PSK_WITH_AES_256_CBC_SHA384" }, { 0x00B0, "TLS_PSK_WITH_NULL_SHA256" }, { 0x00B1, "TLS_PSK_WITH_NULL_SHA384" }, { 0x00B2, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA256" }, { 0x00B3, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA384" }, { 0x00B4, "TLS_DHE_PSK_WITH_NULL_SHA256" }, { 0x00B5, "TLS_DHE_PSK_WITH_NULL_SHA384" }, { 0x00B6, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA256" }, { 0x00B7, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA384" }, { 0x00B8, "TLS_RSA_PSK_WITH_NULL_SHA256" }, { 0x00B9, "TLS_RSA_PSK_WITH_NULL_SHA384" }, /* From RFC 5932 */ { 0x00BA, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256" }, { 0x00BB, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256" }, { 0x00BC, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256" }, { 0x00BD, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256" }, { 0x00BE, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256" }, { 0x00BF, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256" }, { 0x00C0, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256" }, { 0x00C1, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256" }, { 0x00C2, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256" }, { 0x00C3, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256" }, { 0x00C4, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256" }, { 0x00C5, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256" }, /* 0x00,0xC6-FE Unassigned */ /* From RFC 5746 */ { 0x00FF, "TLS_EMPTY_RENEGOTIATION_INFO_SCSV" }, /* From RFC 7507 */ { 0x5600, "TLS_FALLBACK_SCSV" }, /* From RFC 4492 */ { 0xc001, "TLS_ECDH_ECDSA_WITH_NULL_SHA" }, { 0xc002, "TLS_ECDH_ECDSA_WITH_RC4_128_SHA" }, { 0xc003, "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA" }, { 0xc004, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA" }, { 0xc005, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA" }, { 0xc006, "TLS_ECDHE_ECDSA_WITH_NULL_SHA" }, { 0xc007, "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA" }, { 0xc008, "TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA" }, { 0xc009, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA" }, { 0xc00a, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA" }, { 0xc00b, "TLS_ECDH_RSA_WITH_NULL_SHA" }, { 0xc00c, "TLS_ECDH_RSA_WITH_RC4_128_SHA" }, { 0xc00d, "TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA" }, { 0xc00e, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA" }, { 0xc00f, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA" }, { 0xc010, "TLS_ECDHE_RSA_WITH_NULL_SHA" }, { 0xc011, "TLS_ECDHE_RSA_WITH_RC4_128_SHA" }, { 0xc012, "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA" }, { 0xc013, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA" }, { 0xc014, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA" }, { 0xc015, "TLS_ECDH_anon_WITH_NULL_SHA" }, { 0xc016, "TLS_ECDH_anon_WITH_RC4_128_SHA" }, { 0xc017, "TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA" }, { 0xc018, "TLS_ECDH_anon_WITH_AES_128_CBC_SHA" }, { 0xc019, "TLS_ECDH_anon_WITH_AES_256_CBC_SHA" }, /* RFC 5054 */ { 0xC01A, "TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA" }, { 0xC01B, "TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA" }, { 0xC01C, "TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA" }, { 0xC01D, "TLS_SRP_SHA_WITH_AES_128_CBC_SHA" }, { 0xC01E, "TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA" }, { 0xC01F, "TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA" }, { 0xC020, "TLS_SRP_SHA_WITH_AES_256_CBC_SHA" }, { 0xC021, "TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA" }, { 0xC022, "TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA" }, /* RFC 5589 */ { 0xC023, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256" }, { 0xC024, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384" }, { 0xC025, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256" }, { 0xC026, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384" }, { 0xC027, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256" }, { 0xC028, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384" }, { 0xC029, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256" }, { 0xC02A, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384" }, { 0xC02B, "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256" }, { 0xC02C, "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384" }, { 0xC02D, "TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256" }, { 0xC02E, "TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384" }, { 0xC02F, "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256" }, { 0xC030, "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384" }, { 0xC031, "TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256" }, { 0xC032, "TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384" }, /* RFC 5489 */ { 0xC033, "TLS_ECDHE_PSK_WITH_RC4_128_SHA" }, { 0xC034, "TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA" }, { 0xC035, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA" }, { 0xC036, "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA" }, { 0xC037, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256" }, { 0xC038, "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384" }, { 0xC039, "TLS_ECDHE_PSK_WITH_NULL_SHA" }, { 0xC03A, "TLS_ECDHE_PSK_WITH_NULL_SHA256" }, { 0xC03B, "TLS_ECDHE_PSK_WITH_NULL_SHA384" }, /* RFC 6209 */ { 0xC03C, "TLS_RSA_WITH_ARIA_128_CBC_SHA256" }, { 0xC03D, "TLS_RSA_WITH_ARIA_256_CBC_SHA384" }, { 0xC03E, "TLS_DH_DSS_WITH_ARIA_128_CBC_SHA256" }, { 0xC03F, "TLS_DH_DSS_WITH_ARIA_256_CBC_SHA384" }, { 0xC040, "TLS_DH_RSA_WITH_ARIA_128_CBC_SHA256" }, { 0xC041, "TLS_DH_RSA_WITH_ARIA_256_CBC_SHA384" }, { 0xC042, "TLS_DHE_DSS_WITH_ARIA_128_CBC_SHA256" }, { 0xC043, "TLS_DHE_DSS_WITH_ARIA_256_CBC_SHA384" }, { 0xC044, "TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256" }, { 0xC045, "TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384" }, { 0xC046, "TLS_DH_anon_WITH_ARIA_128_CBC_SHA256" }, { 0xC047, "TLS_DH_anon_WITH_ARIA_256_CBC_SHA384" }, { 0xC048, "TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256" }, { 0xC049, "TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384" }, { 0xC04A, "TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256" }, { 0xC04B, "TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384" }, { 0xC04C, "TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256" }, { 0xC04D, "TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384" }, { 0xC04E, "TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256" }, { 0xC04F, "TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384" }, { 0xC050, "TLS_RSA_WITH_ARIA_128_GCM_SHA256" }, { 0xC051, "TLS_RSA_WITH_ARIA_256_GCM_SHA384" }, { 0xC052, "TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256" }, { 0xC053, "TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384" }, { 0xC054, "TLS_DH_RSA_WITH_ARIA_128_GCM_SHA256" }, { 0xC055, "TLS_DH_RSA_WITH_ARIA_256_GCM_SHA384" }, { 0xC056, "TLS_DHE_DSS_WITH_ARIA_128_GCM_SHA256" }, { 0xC057, "TLS_DHE_DSS_WITH_ARIA_256_GCM_SHA384" }, { 0xC058, "TLS_DH_DSS_WITH_ARIA_128_GCM_SHA256" }, { 0xC059, "TLS_DH_DSS_WITH_ARIA_256_GCM_SHA384" }, { 0xC05A, "TLS_DH_anon_WITH_ARIA_128_GCM_SHA256" }, { 0xC05B, "TLS_DH_anon_WITH_ARIA_256_GCM_SHA384" }, { 0xC05C, "TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256" }, { 0xC05D, "TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384" }, { 0xC05E, "TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256" }, { 0xC05F, "TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384" }, { 0xC060, "TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256" }, { 0xC061, "TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384" }, { 0xC062, "TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256" }, { 0xC063, "TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384" }, { 0xC064, "TLS_PSK_WITH_ARIA_128_CBC_SHA256" }, { 0xC065, "TLS_PSK_WITH_ARIA_256_CBC_SHA384" }, { 0xC066, "TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256" }, { 0xC067, "TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384" }, { 0xC068, "TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256" }, { 0xC069, "TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384" }, { 0xC06A, "TLS_PSK_WITH_ARIA_128_GCM_SHA256" }, { 0xC06B, "TLS_PSK_WITH_ARIA_256_GCM_SHA384" }, { 0xC06C, "TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256" }, { 0xC06D, "TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384" }, { 0xC06E, "TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256" }, { 0xC06F, "TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384" }, { 0xC070, "TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256" }, { 0xC071, "TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384" }, /* RFC 6367 */ { 0xC072, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256" }, { 0xC073, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384" }, { 0xC074, "TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256" }, { 0xC075, "TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384" }, { 0xC076, "TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256" }, { 0xC077, "TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384" }, { 0xC078, "TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256" }, { 0xC079, "TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384" }, { 0xC07A, "TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256" }, { 0xC07B, "TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384" }, { 0xC07C, "TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256" }, { 0xC07D, "TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384" }, { 0xC07E, "TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256" }, { 0xC07F, "TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384" }, { 0xC080, "TLS_DHE_DSS_WITH_CAMELLIA_128_GCM_SHA256" }, { 0xC081, "TLS_DHE_DSS_WITH_CAMELLIA_256_GCM_SHA384" }, { 0xC082, "TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256" }, { 0xC083, "TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384" }, { 0xC084, "TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256" }, { 0xC085, "TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384" }, { 0xC086, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256" }, { 0xC087, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384" }, { 0xC088, "TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256" }, { 0xC089, "TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384" }, { 0xC08A, "TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256" }, { 0xC08B, "TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384" }, { 0xC08C, "TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256" }, { 0xC08D, "TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384" }, { 0xC08E, "TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256" }, { 0xC08F, "TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384" }, { 0xC090, "TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256" }, { 0xC091, "TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384" }, { 0xC092, "TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256" }, { 0xC093, "TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384" }, { 0xC094, "TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256" }, { 0xC095, "TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384" }, { 0xC096, "TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256" }, { 0xC097, "TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384" }, { 0xC098, "TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256" }, { 0xC099, "TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384" }, { 0xC09A, "TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256" }, { 0xC09B, "TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384" }, /* RFC 6655 */ { 0xC09C, "TLS_RSA_WITH_AES_128_CCM" }, { 0xC09D, "TLS_RSA_WITH_AES_256_CCM" }, { 0xC09E, "TLS_DHE_RSA_WITH_AES_128_CCM" }, { 0xC09F, "TLS_DHE_RSA_WITH_AES_256_CCM" }, { 0xC0A0, "TLS_RSA_WITH_AES_128_CCM_8" }, { 0xC0A1, "TLS_RSA_WITH_AES_256_CCM_8" }, { 0xC0A2, "TLS_DHE_RSA_WITH_AES_128_CCM_8" }, { 0xC0A3, "TLS_DHE_RSA_WITH_AES_256_CCM_8" }, { 0xC0A4, "TLS_PSK_WITH_AES_128_CCM" }, { 0xC0A5, "TLS_PSK_WITH_AES_256_CCM" }, { 0xC0A6, "TLS_DHE_PSK_WITH_AES_128_CCM" }, { 0xC0A7, "TLS_DHE_PSK_WITH_AES_256_CCM" }, { 0xC0A8, "TLS_PSK_WITH_AES_128_CCM_8" }, { 0xC0A9, "TLS_PSK_WITH_AES_256_CCM_8" }, { 0xC0AA, "TLS_PSK_DHE_WITH_AES_128_CCM_8" }, { 0xC0AB, "TLS_PSK_DHE_WITH_AES_256_CCM_8" }, /* RFC 7251 */ { 0xC0AC, "TLS_ECDHE_ECDSA_WITH_AES_128_CCM" }, { 0xC0AD, "TLS_ECDHE_ECDSA_WITH_AES_256_CCM" }, { 0xC0AE, "TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8" }, { 0xC0AF, "TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8" }, /* 0xC0,0xAB-FF Unassigned 0xC1-FD,* Unassigned 0xFE,0x00-FD Unassigned 0xFE,0xFE-FF Reserved to avoid conflicts with widely deployed implementations [Pasi_Eronen] 0xFF,0x00-FF Reserved for Private Use [RFC5246] */ /* http://tools.ietf.org/html/draft-agl-tls-chacha20poly1305 */ { 0xCC13, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256" }, { 0xCC14, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256" }, { 0xCC15, "TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256" }, /* http://tools.ietf.org/html/draft-josefsson-salsa20-tls */ { 0xE410, "TLS_RSA_WITH_ESTREAM_SALSA20_SHA1" }, { 0xE411, "TLS_RSA_WITH_SALSA20_SHA1" }, { 0xE412, "TLS_ECDHE_RSA_WITH_ESTREAM_SALSA20_SHA1" }, { 0xE413, "TLS_ECDHE_RSA_WITH_SALSA20_SHA1" }, { 0xE414, "TLS_ECDHE_ECDSA_WITH_ESTREAM_SALSA20_SHA1" }, { 0xE415, "TLS_ECDHE_ECDSA_WITH_SALSA20_SHA1" }, { 0xE416, "TLS_PSK_WITH_ESTREAM_SALSA20_SHA1" }, { 0xE417, "TLS_PSK_WITH_SALSA20_SHA1" }, { 0xE418, "TLS_ECDHE_PSK_WITH_ESTREAM_SALSA20_SHA1" }, { 0xE419, "TLS_ECDHE_PSK_WITH_SALSA20_SHA1" }, { 0xE41A, "TLS_RSA_PSK_WITH_ESTREAM_SALSA20_SHA1" }, { 0xE41B, "TLS_RSA_PSK_WITH_SALSA20_SHA1" }, { 0xE41C, "TLS_DHE_PSK_WITH_ESTREAM_SALSA20_SHA1" }, { 0xE41D, "TLS_DHE_PSK_WITH_SALSA20_SHA1" }, { 0xE41E, "TLS_DHE_RSA_WITH_ESTREAM_SALSA20_SHA1" }, { 0xE41F, "TLS_DHE_RSA_WITH_SALSA20_SHA1" }, /* these from http://www.mozilla.org/projects/ security/pki/nss/ssl/fips-ssl-ciphersuites.html */ { 0xfefe, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"}, { 0xfeff, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA" }, { 0xffe0, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA" }, { 0xffe1, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"}, /* note that ciphersuites 0xff00 - 0xffff are private */ { 0x00, NULL } }; value_string_ext ssl_31_ciphersuite_ext = VALUE_STRING_EXT_INIT(ssl_31_ciphersuite); const value_string pct_msg_types[] = { { PCT_MSG_CLIENT_HELLO, "Client Hello" }, { PCT_MSG_SERVER_HELLO, "Server Hello" }, { PCT_MSG_CLIENT_MASTER_KEY, "Client Master Key" }, { PCT_MSG_SERVER_VERIFY, "Server Verify" }, { PCT_MSG_ERROR, "Error" }, { 0x00, NULL } }; const value_string pct_cipher_type[] = { { PCT_CIPHER_DES, "DES" }, { PCT_CIPHER_IDEA, "IDEA" }, { PCT_CIPHER_RC2, "RC2" }, { PCT_CIPHER_RC4, "RC4" }, { PCT_CIPHER_DES_112, "DES 112 bit" }, { PCT_CIPHER_DES_168, "DES 168 bit" }, { 0x00, NULL } }; const value_string pct_hash_type[] = { { PCT_HASH_MD5, "MD5" }, { PCT_HASH_MD5_TRUNC_64, "MD5_TRUNC_64"}, { PCT_HASH_SHA, "SHA"}, { PCT_HASH_SHA_TRUNC_80, "SHA_TRUNC_80"}, { PCT_HASH_DES_DM, "DES_DM"}, { 0x00, NULL } }; const value_string pct_cert_type[] = { { PCT_CERT_NONE, "None" }, { PCT_CERT_X509, "X.509" }, { PCT_CERT_PKCS7, "PKCS #7" }, { 0x00, NULL } }; const value_string pct_sig_type[] = { { PCT_SIG_NONE, "None" }, { PCT_SIG_RSA_MD5, "MD5" }, { PCT_SIG_RSA_SHA, "RSA SHA" }, { PCT_SIG_DSA_SHA, "DSA SHA" }, { 0x00, NULL } }; const value_string pct_exch_type[] = { { PCT_EXCH_RSA_PKCS1, "RSA PKCS#1" }, { PCT_EXCH_RSA_PKCS1_TOKEN_DES, "RSA PKCS#1 Token DES" }, { PCT_EXCH_RSA_PKCS1_TOKEN_DES3, "RSA PKCS#1 Token 3DES" }, { PCT_EXCH_RSA_PKCS1_TOKEN_RC2, "RSA PKCS#1 Token RC-2" }, { PCT_EXCH_RSA_PKCS1_TOKEN_RC4, "RSA PKCS#1 Token RC-4" }, { PCT_EXCH_DH_PKCS3, "DH PKCS#3" }, { PCT_EXCH_DH_PKCS3_TOKEN_DES, "DH PKCS#3 Token DES" }, { PCT_EXCH_DH_PKCS3_TOKEN_DES3, "DH PKCS#3 Token 3DES" }, { PCT_EXCH_FORTEZZA_TOKEN, "Fortezza" }, { 0x00, NULL } }; const value_string pct_error_code[] = { { PCT_ERR_BAD_CERTIFICATE, "PCT_ERR_BAD_CERTIFICATE" }, { PCT_ERR_CLIENT_AUTH_FAILED, "PCT_ERR_CLIENT_AUTH_FAILE" }, { PCT_ERR_ILLEGAL_MESSAGE, "PCT_ERR_ILLEGAL_MESSAGE" }, { PCT_ERR_INTEGRITY_CHECK_FAILED, "PCT_ERR_INTEGRITY_CHECK_FAILED" }, { PCT_ERR_SERVER_AUTH_FAILED, "PCT_ERR_SERVER_AUTH_FAILED" }, { PCT_ERR_SPECS_MISMATCH, "PCT_ERR_SPECS_MISMATCH" }, { 0x00, NULL } }; /* http://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml#tls-extensiontype-values-1 */ const value_string tls_hello_extension_types[] = { { SSL_HND_HELLO_EXT_SERVER_NAME, "server_name" }, /* RFC 3546 */ { 1, "max_fragment_length" }, { 2, "client_certificate_url" }, { 3, "trusted_ca_keys" }, { 4, "truncated_hmac" }, { SSL_HND_HELLO_EXT_STATUS_REQUEST, "status_request" }, /* RFC 6066 */ { 6, "user_mapping" }, /* RFC 4681 */ { 7, "client_authz" }, { 8, "server_authz" }, { SSL_HND_HELLO_EXT_CERT_TYPE, "cert_type" }, /* RFC 5081 */ { SSL_HND_HELLO_EXT_ELLIPTIC_CURVES, "elliptic_curves" }, /* RFC 4492 */ { SSL_HND_HELLO_EXT_EC_POINT_FORMATS, "ec_point_formats" }, /* RFC 4492 */ { 12, "srp" }, /* RFC 5054 */ { 13, "signature_algorithms" }, /* RFC 5246 */ { 14, "use_srtp" }, { SSL_HND_HELLO_EXT_HEARTBEAT, "Heartbeat" }, /* RFC 6520 */ { SSL_HND_HELLO_EXT_ALPN, "Application Layer Protocol Negotiation" }, /* RFC 7301 */ { SSL_HND_HELLO_EXT_STATUS_REQUEST_V2, "status_request_v2" }, /* RFC 6961 */ { 18, "signed_certificate_timestamp" }, /* RFC 6962 */ { SSL_HND_HELLO_EXT_CLIENT_CERT_TYPE, "client_certificate_type" }, /* RFC 7250 */ { SSL_HND_HELLO_EXT_SERVER_CERT_TYPE, "server_certificate_type" }, /* RFC 7250 */ { SSL_HND_HELLO_EXT_PADDING, "Padding" }, /* http://tools.ietf.org/html/draft-agl-tls-padding */ { SSL_HND_HELLO_EXT_EXTENDED_MASTER_SECRET_TYPE, "Extended Master Secret" }, /* https://tools.ietf.org/html/draft-ietf-tls-session-hash-01 */ { SSL_HND_HELLO_EXT_SESSION_TICKET, "SessionTicket TLS" }, /* RFC 4507 */ { SSL_HND_HELLO_EXT_NPN, "next_protocol_negotiation"}, /* http://technotes.googlecode.com/git/nextprotoneg.html */ { SSL_HND_HELLO_EXT_RENEG_INFO, "renegotiation_info" }, /* RFC 5746 */ /* http://tools.ietf.org/html/draft-balfanz-tls-channelid-00 https://twitter.com/ericlaw/status/274237352531083264 */ { SSL_HND_HELLO_EXT_CHANNEL_ID_OLD, "channel_id_old" }, /* http://tools.ietf.org/html/draft-balfanz-tls-channelid-01 https://code.google.com/p/chromium/codesearch#chromium/src/net/third_party/nss/ssl/sslt.h&l=209 */ { SSL_HND_HELLO_EXT_CHANNEL_ID, "channel_id" }, { 0, NULL } }; const value_string tls_hello_ext_server_name_type_vs[] = { { 0, "host_name" }, { 0, NULL } }; /* RFC 5246 7.4.1.4.1 */ const value_string tls_hash_algorithm[] = { { 0, "None" }, { 1, "MD5" }, { 2, "SHA1" }, { 3, "SHA224" }, { 4, "SHA256" }, { 5, "SHA384" }, { 6, "SHA512" }, { 0, NULL } }; const value_string tls_signature_algorithm[] = { { 0, "Anonymous" }, { 1, "RSA" }, { 2, "DSA" }, { 3, "ECDSA" }, { 0, NULL } }; /* RFC 6091 3.1 */ const value_string tls_certificate_type[] = { { 0, "X.509" }, { 1, "OpenPGP" }, { SSL_HND_CERT_TYPE_RAW_PUBLIC_KEY, "Raw Public Key" }, /* RFC 7250 */ { 0, NULL } }; const value_string tls_cert_chain_type[] = { { SSL_HND_CERT_URL_TYPE_INDIVIDUAL_CERT, "Individual Certificates" }, { SSL_HND_CERT_URL_TYPE_PKIPATH, "PKI Path" }, { 0, NULL } }; const value_string tls_cert_status_type[] = { { SSL_HND_CERT_STATUS_TYPE_OCSP, "OCSP" }, { SSL_HND_CERT_STATUS_TYPE_OCSP_MULTI, "OCSP Multi" }, { 0, NULL } }; /* string_string is inappropriate as it compares strings while * "byte strings MUST NOT be truncated" (RFC 7301) */ typedef struct ssl_alpn_protocol { const guint8 *proto_name; size_t proto_name_len; const char *dissector_name; } ssl_alpn_protocol_t; /* http://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml#alpn-protocol-ids */ static const ssl_alpn_protocol_t ssl_alpn_protocols[] = { { "http/1.1", sizeof("http/1.1"), "http" }, /* SPDY moves so fast, just 1, 2 and 3 are registered with IANA but there * already exists 3.1 as of this writing... match the prefix. */ { "spdy/", sizeof("spdy/") - 1, "spdy" }, { "stun.turn", sizeof("stun.turn"), "turnchannel" }, { "stun.nat-discovery", sizeof("stun.nat-discovery"), "stun" }, /* draft-ietf-httpbis-http2-16 */ { "h2-", sizeof("h2-") - 1, "http2" }, /* draft versions */ { "h2", sizeof("h2"), "http2" }, /* final version */ }; /* Lookup tables }}} */ /* we keep this internal to packet-ssl-utils, as there should be no need to access it any other way. This also allows us to hide the dependency on zlib. */ struct _SslDecompress { gint compression; #ifdef HAVE_LIBZ z_stream istream; #endif }; /* To assist in parsing client/server key exchange messages 0 indicates unknown */ gint ssl_get_keyex_alg(gint cipher) { /* Map Cipher suite number to Key Exchange algorithm {{{ */ switch(cipher) { case 0x0017: case 0x0018: case 0x0019: case 0x001a: case 0x001b: case 0x0034: case 0x003a: case 0x0046: case 0x006c: case 0x006d: case 0x0089: case 0x009b: case 0x00a6: case 0x00a7: case 0x00bf: case 0x00c5: case 0xc084: case 0xc085: return KEX_DH_ANON; case 0x000b: case 0x000c: case 0x000d: case 0x0030: case 0x0036: case 0x003e: case 0x0042: case 0x0068: case 0x0085: case 0x0097: case 0x00a4: case 0x00a5: case 0x00bb: case 0x00c1: case 0xc082: case 0xc083: return KEX_DH_DSS; case 0x000e: case 0x000f: case 0x0010: case 0x0031: case 0x0037: case 0x003f: case 0x0043: case 0x0069: case 0x0086: case 0x0098: case 0x00a0: case 0x00a1: case 0x00bc: case 0x00c2: case 0xc07e: case 0xc07f: return KEX_DH_RSA; case 0x0011: case 0x0012: case 0x0013: case 0x0032: case 0x0038: case 0x0040: case 0x0044: case 0x0063: case 0x0065: case 0x0066: case 0x006a: case 0x0087: case 0x0099: case 0x00a2: case 0x00a3: case 0x00bd: case 0x00c3: case 0xc080: case 0xc081: return KEX_DHE_DSS; case 0x002d: case 0x008e: case 0x008f: case 0x0090: case 0x0091: case 0x00aa: case 0x00ab: case 0x00b2: case 0x00b3: case 0x00b4: case 0x00b5: case 0xc090: case 0xc091: case 0xc096: case 0xc097: case 0xc0a6: case 0xc0a7: case 0xc0aa: case 0xc0ab: case 0xe41c: case 0xe41d: return KEX_DHE_PSK; case 0x0014: case 0x0015: case 0x0016: case 0x0033: case 0x0039: case 0x0045: case 0x0067: case 0x006b: case 0x0088: case 0x009a: case 0x009e: case 0x009f: case 0x00be: case 0x00c4: case 0xc07c: case 0xc07d: case 0xc09e: case 0xc09f: case 0xc0a2: case 0xc0a3: case 0xe41e: case 0xe41f: return KEX_DHE_RSA; case 0xc015: case 0xc016: case 0xc017: case 0xc018: case 0xc019: return KEX_ECDH_ANON; case 0xc001: case 0xc002: case 0xc003: case 0xc004: case 0xc005: case 0xc025: case 0xc026: case 0xc02d: case 0xc02e: case 0xc074: case 0xc075: case 0xc088: case 0xc089: return KEX_ECDH_ECDSA; case 0xc00b: case 0xc00c: case 0xc00d: case 0xc00e: case 0xc00f: case 0xc029: case 0xc02a: case 0xc031: case 0xc032: case 0xc078: case 0xc079: case 0xc08c: case 0xc08d: return KEX_ECDH_RSA; case 0xc006: case 0xc007: case 0xc008: case 0xc009: case 0xc00a: case 0xc023: case 0xc024: case 0xc02b: case 0xc02c: case 0xc072: case 0xc073: case 0xc086: case 0xc087: case 0xc0ac: case 0xc0ad: case 0xc0ae: case 0xc0af: case 0xe414: case 0xe415: return KEX_ECDHE_ECDSA; case 0xc033: case 0xc034: case 0xc035: case 0xc036: case 0xc037: case 0xc038: case 0xc039: case 0xc03a: case 0xc03b: case 0xc09a: case 0xc09b: case 0xe418: case 0xe419: return KEX_ECDHE_PSK; case 0xc010: case 0xc011: case 0xc012: case 0xc013: case 0xc014: case 0xc027: case 0xc028: case 0xc02f: case 0xc030: case 0xc076: case 0xc077: case 0xc08a: case 0xc08b: case 0xe412: case 0xe413: return KEX_ECDHE_RSA; case 0x001e: case 0x001f: case 0x0020: case 0x0021: case 0x0022: case 0x0023: case 0x0024: case 0x0025: case 0x0026: case 0x0027: case 0x0028: case 0x0029: case 0x002a: case 0x002b: return KEX_KRB5; case 0x002c: case 0x008a: case 0x008b: case 0x008c: case 0x008d: case 0x00a8: case 0x00a9: case 0x00ae: case 0x00af: case 0x00b0: case 0x00b1: case 0xc064: case 0xc065: case 0xc08e: case 0xc08f: case 0xc094: case 0xc095: case 0xc0a4: case 0xc0a5: case 0xc0a8: case 0xc0a9: case 0xe416: case 0xe417: return KEX_PSK; case 0x0001: case 0x0002: case 0x0003: case 0x0004: case 0x0005: case 0x0006: case 0x0007: case 0x0008: case 0x0009: case 0x000a: case 0x002f: case 0x0035: case 0x003b: case 0x003c: case 0x003d: case 0x0041: case 0x0060: case 0x0061: case 0x0062: case 0x0064: case 0x0084: case 0x0096: case 0x009c: case 0x009d: case 0x00ba: case 0x00c0: case 0xc07a: case 0xc07b: case 0xc09c: case 0xc09d: case 0xc0a0: case 0xc0a1: case 0xe410: case 0xe411: case 0xfefe: case 0xfeff: case 0xffe0: case 0xffe1: return KEX_RSA; case 0x002e: case 0x0092: case 0x0093: case 0x0094: case 0x0095: case 0x00ac: case 0x00ad: case 0x00b6: case 0x00b7: case 0x00b8: case 0x00b9: case 0xc092: case 0xc093: case 0xc098: case 0xc099: case 0xe41a: case 0xe41b: return KEX_RSA_PSK; case 0xc01a: case 0xc01d: case 0xc020: return KEX_SRP_SHA; case 0xc01c: case 0xc01f: case 0xc022: return KEX_SRP_SHA_DSS; case 0xc01b: case 0xc01e: case 0xc021: return KEX_SRP_SHA_RSA; default: break; } return 0; /* }}} */ } /* StringInfo structure (len + data) functions {{{ */ static gint ssl_data_alloc(StringInfo* str, size_t len) { str->data = (guchar *)g_malloc(len); /* the allocator can return a null pointer for a size equal to 0, * and that must be allowed */ if (len > 0 && !str->data) return -1; str->data_len = (guint) len; return 0; } void ssl_data_set(StringInfo* str, const guchar* data, guint len) { DISSECTOR_ASSERT(data); memcpy(str->data, data, len); str->data_len = len; } #ifdef HAVE_LIBGCRYPT static gint ssl_data_realloc(StringInfo* str, guint len) { str->data = (guchar *)g_realloc(str->data, len); if (!str->data) return -1; str->data_len = len; return 0; } static StringInfo * ssl_data_clone(StringInfo *str) { StringInfo *cloned_str; cloned_str = (StringInfo *) wmem_alloc0(wmem_file_scope(), sizeof(StringInfo) + str->data_len); cloned_str->data = (guchar *) (cloned_str + 1); ssl_data_set(cloned_str, str->data, str->data_len); return cloned_str; } static gint ssl_data_copy(StringInfo* dst, StringInfo* src) { if (dst->data_len < src->data_len) { if (ssl_data_realloc(dst, src->data_len)) return -1; } memcpy(dst->data, src->data, src->data_len); dst->data_len = src->data_len; return 0; } #endif /* from_hex converts |hex_len| bytes of hex data from |in| and sets |*out| to * the result. |out->data| will be allocated using wmem_file_scope. Returns TRUE on * success. */ static gboolean from_hex(StringInfo* out, const char* in, gsize hex_len) { gsize i; if (hex_len & 1) return FALSE; out->data = (guchar *)wmem_alloc(wmem_file_scope(), hex_len / 2); for (i = 0; i < hex_len / 2; i++) { int a = ws_xton(in[i*2]); int b = ws_xton(in[i*2 + 1]); if (a == -1 || b == -1) return FALSE; out->data[i] = a << 4 | b; } out->data_len = (guint)hex_len / 2; return TRUE; } /* StringInfo structure (len + data) functions }}} */ #ifdef HAVE_LIBGCRYPT /* libgcrypt wrappers for HMAC/message digest operations {{{ */ /* hmac abstraction layer */ #define SSL_HMAC gcry_md_hd_t static inline gint ssl_hmac_init(SSL_HMAC* md, const void * key, gint len, gint algo) { gcry_error_t err; const char *err_str, *err_src; err = gcry_md_open(md,algo, GCRY_MD_FLAG_HMAC); if (err != 0) { err_str = gcry_strerror(err); err_src = gcry_strsource(err); ssl_debug_printf("ssl_hmac_init(): gcry_md_open failed %s/%s", err_str, err_src); return -1; } gcry_md_setkey (*(md), key, len); return 0; } static inline void ssl_hmac_update(SSL_HMAC* md, const void* data, gint len) { gcry_md_write(*(md), data, len); } static inline void ssl_hmac_final(SSL_HMAC* md, guchar* data, guint* datalen) { gint algo; guint len; algo = gcry_md_get_algo (*(md)); len = gcry_md_get_algo_dlen(algo); DISSECTOR_ASSERT(len <= *datalen); memcpy(data, gcry_md_read(*(md), algo), len); *datalen = len; } static inline void ssl_hmac_cleanup(SSL_HMAC* md) { gcry_md_close(*(md)); } /* message digest abstraction layer*/ #define SSL_MD gcry_md_hd_t static inline gint ssl_md_init(SSL_MD* md, gint algo) { gcry_error_t err; const char *err_str, *err_src; err = gcry_md_open(md,algo, 0); if (err != 0) { err_str = gcry_strerror(err); err_src = gcry_strsource(err); ssl_debug_printf("ssl_md_init(): gcry_md_open failed %s/%s", err_str, err_src); return -1; } return 0; } static inline void ssl_md_update(SSL_MD* md, guchar* data, gint len) { gcry_md_write(*(md), data, len); } static inline void ssl_md_final(SSL_MD* md, guchar* data, guint* datalen) { gint algo; gint len; algo = gcry_md_get_algo (*(md)); len = gcry_md_get_algo_dlen (algo); memcpy(data, gcry_md_read(*(md), algo), len); *datalen = len; } static inline void ssl_md_cleanup(SSL_MD* md) { gcry_md_close(*(md)); } /* md5 /sha abstraction layer */ #define SSL_SHA_CTX gcry_md_hd_t #define SSL_MD5_CTX gcry_md_hd_t static inline void ssl_sha_init(SSL_SHA_CTX* md) { gcry_md_open(md,GCRY_MD_SHA1, 0); } static inline void ssl_sha_update(SSL_SHA_CTX* md, guchar* data, gint len) { gcry_md_write(*(md), data, len); } static inline void ssl_sha_final(guchar* buf, SSL_SHA_CTX* md) { memcpy(buf, gcry_md_read(*(md), GCRY_MD_SHA1), gcry_md_get_algo_dlen(GCRY_MD_SHA1)); } static inline void ssl_sha_cleanup(SSL_SHA_CTX* md) { gcry_md_close(*(md)); } static inline gint ssl_md5_init(SSL_MD5_CTX* md) { return gcry_md_open(md,GCRY_MD_MD5, 0); } static inline void ssl_md5_update(SSL_MD5_CTX* md, guchar* data, gint len) { gcry_md_write(*(md), data, len); } static inline void ssl_md5_final(guchar* buf, SSL_MD5_CTX* md) { memcpy(buf, gcry_md_read(*(md), GCRY_MD_MD5), gcry_md_get_algo_dlen(GCRY_MD_MD5)); } static inline void ssl_md5_cleanup(SSL_MD5_CTX* md) { gcry_md_close(*(md)); } /* libgcrypt wrappers for HMAC/message digest operations }}} */ /* libgcrypt wrappers for Cipher state manipulation {{{ */ gint ssl_cipher_setiv(SSL_CIPHER_CTX *cipher, guchar* iv, gint iv_len) { gint ret; #if 0 guchar *ivp; gint i; gcry_cipher_hd_t c; c=(gcry_cipher_hd_t)*cipher; #endif ssl_debug_printf("--------------------------------------------------------------------"); #if 0 for(ivp=c->iv,i=0; i < iv_len; i++ ) { ssl_debug_printf("%d ",ivp[i]); i++; } #endif ssl_debug_printf("--------------------------------------------------------------------"); ret = gcry_cipher_setiv(*(cipher), iv, iv_len); #if 0 for(ivp=c->iv,i=0; i < iv_len; i++ ) { ssl_debug_printf("%d ",ivp[i]); i++; } #endif ssl_debug_printf("--------------------------------------------------------------------"); return ret; } /* stream cipher abstraction layer*/ static gint ssl_cipher_init(gcry_cipher_hd_t *cipher, gint algo, guchar* sk, guchar* iv, gint mode) { gint gcry_modes[]={GCRY_CIPHER_MODE_STREAM,GCRY_CIPHER_MODE_CBC,GCRY_CIPHER_MODE_CTR,GCRY_CIPHER_MODE_CTR,GCRY_CIPHER_MODE_CTR}; gint err; if (algo == -1) { /* NULL mode */ *(cipher) = (gcry_cipher_hd_t)-1; return 0; } err = gcry_cipher_open(cipher, algo, gcry_modes[mode], 0); if (err !=0) return -1; err = gcry_cipher_setkey(*(cipher), sk, gcry_cipher_get_algo_keylen (algo)); if (err != 0) return -1; err = gcry_cipher_setiv(*(cipher), iv, gcry_cipher_get_algo_blklen (algo)); if (err != 0) return -1; return 0; } static inline gint ssl_cipher_decrypt(gcry_cipher_hd_t *cipher, guchar * out, gint outl, const guchar * in, gint inl) { if ((*cipher) == (gcry_cipher_hd_t)-1) { if (in && inl) memcpy(out, in, outl < inl ? outl : inl); return 0; } return gcry_cipher_decrypt ( *(cipher), out, outl, in, inl); } static inline gint ssl_get_digest_by_name(const gchar*name) { return gcry_md_map_name(name); } static inline gint ssl_get_cipher_by_name(const gchar* name) { return gcry_cipher_map_name(name); } static inline void ssl_cipher_cleanup(gcry_cipher_hd_t *cipher) { if ((*cipher) != (gcry_cipher_hd_t)-1) gcry_cipher_close(*cipher); *cipher = NULL; } /* libgcrypt wrappers for Cipher state manipulation }}} */ #ifdef HAVE_LIBGNUTLS /* libgcrypt wrapper to decrypt using a RSA private key {{{ */ /* decrypt data with private key. Store decrypted data directly into input * buffer */ static int ssl_private_decrypt(const guint len, guchar* data, gcry_sexp_t pk) { gint rc = 0; size_t decr_len = 0, i = 0; gcry_sexp_t s_data = NULL, s_plain = NULL; gcry_mpi_t encr_mpi = NULL, text = NULL; /* create mpi representation of encrypted data */ rc = gcry_mpi_scan(&encr_mpi, GCRYMPI_FMT_USG, data, len, NULL); if (rc != 0 ) { ssl_debug_printf("pcry_private_decrypt: can't convert data to mpi (size %d):%s\n", len, gcry_strerror(rc)); return 0; } /* put the data into a simple list */ rc = gcry_sexp_build(&s_data, NULL, "(enc-val(rsa(a%m)))", encr_mpi); if (rc != 0) { ssl_debug_printf("pcry_private_decrypt: can't build encr_sexp:%s\n", gcry_strerror(rc)); decr_len = 0; goto out; } /* pass it to libgcrypt */ rc = gcry_pk_decrypt(&s_plain, s_data, pk); if (rc != 0) { ssl_debug_printf("pcry_private_decrypt: can't decrypt key:%s\n", gcry_strerror(rc)); decr_len = 0; goto out; } /* convert plain text sexp to mpi format */ text = gcry_sexp_nth_mpi(s_plain, 0, 0); if (! text) { ssl_debug_printf("pcry_private_decrypt: can't convert sexp to mpi\n"); decr_len = 0; goto out; } /* compute size requested for plaintext buffer */ rc = gcry_mpi_print(GCRYMPI_FMT_USG, NULL, 0, &decr_len, text); if (rc != 0) { ssl_debug_printf("pcry_private_decrypt: can't compute decr size:%s\n", gcry_strerror(rc)); decr_len = 0; goto out; } /* sanity check on out buffer */ if (decr_len > len) { ssl_debug_printf("pcry_private_decrypt: decrypted data is too long ?!? (%" G_GSIZE_MODIFIER "u max %d)\n", decr_len, len); decr_len = 0; goto out; } /* write plain text to newly allocated buffer */ rc = gcry_mpi_print(GCRYMPI_FMT_USG, data, len, &decr_len, text); if (rc != 0) { ssl_debug_printf("pcry_private_decrypt: can't print decr data to mpi (size %" G_GSIZE_MODIFIER "u):%s\n", decr_len, gcry_strerror(rc)); decr_len = 0; goto out; } ssl_print_data("decrypted_unstrip_pre_master", data, decr_len); /* strip the padding*/ rc = 0; for (i = 1; i < decr_len; i++) { if (data[i] == 0) { rc = (gint) i+1; break; } } ssl_debug_printf("pcry_private_decrypt: stripping %d bytes, decr_len %" G_GSIZE_MODIFIER "u\n", rc, decr_len); decr_len -= rc; memmove(data, data+rc, decr_len); out: gcry_sexp_release(s_data); gcry_sexp_release(s_plain); gcry_mpi_release(encr_mpi); gcry_mpi_release(text); return (int) decr_len; } /* }}} */ #endif /* HAVE_LIBGNUTLS */ #else /* ! HAVE_LIBGCRYPT */ gint ssl_cipher_setiv(SSL_CIPHER_CTX *cipher _U_, guchar* iv _U_, gint iv_len _U_) { ssl_debug_printf("ssl_cipher_setiv: impossible without gnutls.\n"); return 0; } #endif /* ! HAVE_LIBGCRYPT */ #ifdef HAVE_LIBGCRYPT /* Save space if decryption is not enabled. */ /* Digests, Ciphers and Cipher Suites registry {{{ */ static const SslDigestAlgo digests[]={ {"MD5", 16}, {"SHA1", 20}, {"SHA256", 32}, {"SHA384", 48}, {"Not Applicable", 0}, }; #define DIGEST_MAX_SIZE 48 /* get index digest index */ static const SslDigestAlgo * ssl_cipher_suite_dig(SslCipherSuite *cs) { return &digests[cs->dig - DIG_MD5]; } static const gchar *ciphers[]={ "DES", "3DES", "ARCFOUR", /* libgcrypt does not support rc4, but this should be 100% compatible*/ "RFC2268_128", /* libgcrypt name for RC2 with a 128-bit key */ "IDEA", "AES", "AES256", "CAMELLIA128", "CAMELLIA256", "SEED", "*UNKNOWN*" }; static SslCipherSuite cipher_suites[]={ {0x0001,KEX_RSA, ENC_NULL, 1, 0, 0,DIG_MD5, MODE_STREAM}, /* TLS_RSA_WITH_NULL_MD5 */ {0x0002,KEX_RSA, ENC_NULL, 1, 0, 0,DIG_SHA, MODE_STREAM}, /* TLS_RSA_WITH_NULL_SHA */ {0x0003,KEX_RSA, ENC_RC4, 1,128, 40,DIG_MD5, MODE_STREAM}, /* TLS_RSA_EXPORT_WITH_RC4_40_MD5 */ {0x0004,KEX_RSA, ENC_RC4, 1,128,128,DIG_MD5, MODE_STREAM}, /* TLS_RSA_WITH_RC4_128_MD5 */ {0x0005,KEX_RSA, ENC_RC4, 1,128,128,DIG_SHA, MODE_STREAM}, /* TLS_RSA_WITH_RC4_128_SHA */ {0x0006,KEX_RSA, ENC_RC2, 8,128, 40,DIG_MD5, MODE_CBC }, /* TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 */ {0x0007,KEX_RSA, ENC_IDEA, 8,128,128,DIG_SHA, MODE_CBC }, /* TLS_RSA_WITH_IDEA_CBC_SHA */ {0x0008,KEX_RSA, ENC_DES, 8, 64, 40,DIG_SHA, MODE_CBC }, /* TLS_RSA_EXPORT_WITH_DES40_CBC_SHA */ {0x0009,KEX_RSA, ENC_DES, 8, 64, 64,DIG_SHA, MODE_CBC }, /* TLS_RSA_WITH_DES_CBC_SHA */ {0x000A,KEX_RSA, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_RSA_WITH_3DES_EDE_CBC_SHA */ {0x000B,KEX_DH_DSS, ENC_DES, 8, 64, 40,DIG_SHA, MODE_CBC }, /* TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA */ {0x000C,KEX_DH_DSS, ENC_DES, 8, 64, 64,DIG_SHA, MODE_CBC }, /* TLS_DH_DSS_WITH_DES_CBC_SHA */ {0x000D,KEX_DH_DSS, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA */ {0x000E,KEX_DH_RSA, ENC_DES, 8, 64, 40,DIG_SHA, MODE_CBC }, /* TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA */ {0x000F,KEX_DH_RSA, ENC_DES, 8, 64, 64,DIG_SHA, MODE_CBC }, /* TLS_DH_RSA_WITH_DES_CBC_SHA */ {0x0010,KEX_DH_RSA, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA */ {0x0011,KEX_DHE_DSS, ENC_DES, 8, 64, 40,DIG_SHA, MODE_CBC }, /* TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA */ {0x0012,KEX_DHE_DSS, ENC_DES, 8, 64, 64,DIG_SHA, MODE_CBC }, /* TLS_DHE_DSS_WITH_DES_CBC_SHA */ {0x0013,KEX_DHE_DSS, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA */ {0x0014,KEX_DHE_RSA, ENC_DES, 8, 64, 40,DIG_SHA, MODE_CBC }, /* TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA */ {0x0015,KEX_DHE_RSA, ENC_DES, 8, 64, 64,DIG_SHA, MODE_CBC }, /* TLS_DHE_RSA_WITH_DES_CBC_SHA */ {0x0016,KEX_DHE_RSA, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA */ {0x0017,KEX_DH_ANON, ENC_RC4, 1,128, 40,DIG_MD5, MODE_STREAM}, /* TLS_DH_anon_EXPORT_WITH_RC4_40_MD5 */ {0x0018,KEX_DH_ANON, ENC_RC4, 1,128,128,DIG_MD5, MODE_STREAM}, /* TLS_DH_anon_WITH_RC4_128_MD5 */ {0x0019,KEX_DH_ANON, ENC_DES, 8, 64, 40,DIG_SHA, MODE_CBC }, /* TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA */ {0x001A,KEX_DH_ANON, ENC_DES, 8, 64, 64,DIG_SHA, MODE_CBC }, /* TLS_DH_anon_WITH_DES_CBC_SHA */ {0x001B,KEX_DH_ANON, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_DH_anon_WITH_3DES_EDE_CBC_SHA */ {0x002C,KEX_PSK, ENC_NULL, 1, 0, 0,DIG_SHA, MODE_STREAM}, /* TLS_PSK_WITH_NULL_SHA */ {0x002D,KEX_DHE_PSK, ENC_NULL, 1, 0, 0,DIG_SHA, MODE_STREAM}, /* TLS_DHE_PSK_WITH_NULL_SHA */ {0x002E,KEX_RSA_PSK, ENC_NULL, 1, 0, 0,DIG_SHA, MODE_STREAM}, /* TLS_RSA_PSK_WITH_NULL_SHA */ {0x002F,KEX_RSA, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_RSA_WITH_AES_128_CBC_SHA */ {0x0030,KEX_DH_DSS, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DH_DSS_WITH_AES_128_CBC_SHA */ {0x0031,KEX_DH_RSA, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DH_RSA_WITH_AES_128_CBC_SHA */ {0x0032,KEX_DHE_DSS, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DHE_DSS_WITH_AES_128_CBC_SHA */ {0x0033,KEX_DHE_RSA, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DHE_RSA_WITH_AES_128_CBC_SHA */ {0x0034,KEX_DH_ANON, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DH_anon_WITH_AES_128_CBC_SHA */ {0x0035,KEX_RSA, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_RSA_WITH_AES_256_CBC_SHA */ {0x0036,KEX_DH_DSS, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_DH_DSS_WITH_AES_256_CBC_SHA */ {0x0037,KEX_DH_RSA, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_DH_RSA_WITH_AES_256_CBC_SHA */ {0x0038,KEX_DHE_DSS, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_DHE_DSS_WITH_AES_256_CBC_SHA */ {0x0039,KEX_DHE_RSA, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_DHE_RSA_WITH_AES_256_CBC_SHA */ {0x003A,KEX_DH_ANON, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_DH_anon_WITH_AES_256_CBC_SHA */ {0x003B,KEX_RSA, ENC_NULL, 1, 0, 0,DIG_SHA256, MODE_STREAM}, /* TLS_RSA_WITH_NULL_SHA256 */ {0x003C,KEX_RSA, ENC_AES, 16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_RSA_WITH_AES_128_CBC_SHA256 */ {0x003D,KEX_RSA, ENC_AES256, 16,256,256,DIG_SHA256, MODE_CBC }, /* TLS_RSA_WITH_AES_256_CBC_SHA256 */ {0x003E,KEX_DH_DSS, ENC_AES, 16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_DH_DSS_WITH_AES_128_CBC_SHA256 */ {0x003F,KEX_DH_RSA, ENC_AES, 16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_DH_RSA_WITH_AES_128_CBC_SHA256 */ {0x0040,KEX_DHE_DSS, ENC_AES, 16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 */ {0x0041,KEX_RSA, ENC_CAMELLIA128,16,128,128,DIG_SHA, MODE_CBC }, /* TLS_RSA_WITH_CAMELLIA_128_CBC_SHA */ {0x0042,KEX_DH_DSS, ENC_CAMELLIA128,16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA */ {0x0043,KEX_DH_RSA, ENC_CAMELLIA128,16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA */ {0x0044,KEX_DHE_DSS, ENC_CAMELLIA128,16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA */ {0x0045,KEX_DHE_RSA, ENC_CAMELLIA128,16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA */ {0x0046,KEX_DH_ANON, ENC_CAMELLIA128,16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA */ {0x0060,KEX_RSA, ENC_RC4, 1,128, 56,DIG_MD5, MODE_STREAM}, /* TLS_RSA_EXPORT1024_WITH_RC4_56_MD5 */ {0x0061,KEX_RSA, ENC_RC2, 1,128, 56,DIG_MD5, MODE_STREAM}, /* TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5 */ {0x0062,KEX_RSA, ENC_DES, 8, 64, 56,DIG_SHA, MODE_CBC }, /* TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA */ {0x0063,KEX_DHE_DSS, ENC_DES, 8, 64, 56,DIG_SHA, MODE_CBC }, /* TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA */ {0x0064,KEX_RSA, ENC_RC4, 1,128, 56,DIG_SHA, MODE_STREAM}, /* TLS_RSA_EXPORT1024_WITH_RC4_56_SHA */ {0x0065,KEX_DHE_DSS, ENC_RC4, 1,128, 56,DIG_SHA, MODE_STREAM}, /* TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA */ {0x0066,KEX_DHE_DSS, ENC_RC4, 1,128,128,DIG_SHA, MODE_STREAM}, /* TLS_DHE_DSS_WITH_RC4_128_SHA */ {0x0067,KEX_DHE_RSA, ENC_AES, 16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 */ {0x0068,KEX_DH_DSS, ENC_AES256, 16,256,256,DIG_SHA256, MODE_CBC }, /* TLS_DH_DSS_WITH_AES_256_CBC_SHA256 */ {0x0069,KEX_DH_RSA, ENC_AES256, 16,256,256,DIG_SHA256, MODE_CBC }, /* TLS_DH_RSA_WITH_AES_256_CBC_SHA256 */ {0x006A,KEX_DHE_DSS, ENC_AES256, 16,256,256,DIG_SHA256, MODE_CBC }, /* TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 */ {0x006B,KEX_DHE_RSA, ENC_AES256, 16,256,256,DIG_SHA256, MODE_CBC }, /* TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 */ {0x006C,KEX_DH_ANON, ENC_AES, 16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_DH_anon_WITH_AES_128_CBC_SHA256 */ {0x006D,KEX_DH_ANON, ENC_AES256, 16,256,256,DIG_SHA256, MODE_CBC }, /* TLS_DH_anon_WITH_AES_256_CBC_SHA256 */ {0x0084,KEX_RSA, ENC_CAMELLIA256,16,256,256,DIG_SHA, MODE_CBC }, /* TLS_RSA_WITH_CAMELLIA_256_CBC_SHA */ {0x0085,KEX_DH_DSS, ENC_CAMELLIA256,16,256,256,DIG_SHA, MODE_CBC }, /* TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA */ {0x0086,KEX_DH_RSA, ENC_CAMELLIA256,16,256,256,DIG_SHA, MODE_CBC }, /* TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA */ {0x0087,KEX_DHE_DSS, ENC_CAMELLIA256,16,256,256,DIG_SHA, MODE_CBC }, /* TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA */ {0x0088,KEX_DHE_RSA, ENC_CAMELLIA256,16,256,256,DIG_SHA, MODE_CBC }, /* TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA */ {0x0089,KEX_DH_ANON, ENC_CAMELLIA256,16,256,256,DIG_SHA, MODE_CBC }, /* TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA */ {0x008A,KEX_PSK, ENC_RC4, 1,128,128,DIG_SHA, MODE_STREAM}, /* TLS_PSK_WITH_RC4_128_SHA */ {0x008B,KEX_PSK, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_PSK_WITH_3DES_EDE_CBC_SHA */ {0x008C,KEX_PSK, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_PSK_WITH_AES_128_CBC_SHA */ {0x008D,KEX_PSK, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_PSK_WITH_AES_256_CBC_SHA */ {0x008E,KEX_DHE_PSK, ENC_RC4, 1,128,128,DIG_SHA, MODE_STREAM}, /* TLS_DHE_PSK_WITH_RC4_128_SHA */ {0x008F,KEX_DHE_PSK, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA */ {0x0090,KEX_DHE_PSK, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DHE_PSK_WITH_AES_128_CBC_SHA */ {0x0091,KEX_DHE_PSK, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_DHE_PSK_WITH_AES_256_CBC_SHA */ {0x0092,KEX_RSA_PSK, ENC_RC4, 1,128,128,DIG_SHA, MODE_STREAM}, /* TLS_RSA_PSK_WITH_RC4_128_SHA */ {0x0093,KEX_RSA_PSK, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA */ {0x0094,KEX_RSA_PSK, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_RSA_PSK_WITH_AES_128_CBC_SHA */ {0x0095,KEX_RSA_PSK, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_RSA_PSK_WITH_AES_256_CBC_SHA */ {0x0096,KEX_RSA, ENC_SEED, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_RSA_WITH_SEED_CBC_SHA */ {0x0097,KEX_DH_DSS, ENC_SEED, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DH_DSS_WITH_SEED_CBC_SHA */ {0x0098,KEX_DH_RSA, ENC_SEED, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DH_RSA_WITH_SEED_CBC_SHA */ {0x0099,KEX_DHE_DSS, ENC_SEED, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DHE_DSS_WITH_SEED_CBC_SHA */ {0x009A,KEX_DHE_RSA, ENC_SEED, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DHE_RSA_WITH_SEED_CBC_SHA */ {0x009B,KEX_DH_ANON, ENC_SEED, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_DH_anon_WITH_SEED_CBC_SHA */ {0x009C,KEX_RSA, ENC_AES, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_RSA_WITH_AES_128_GCM_SHA256 */ {0x009D,KEX_RSA, ENC_AES256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_RSA_WITH_AES_256_GCM_SHA384 */ {0x009E,KEX_DHE_RSA, ENC_AES, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 */ {0x009F,KEX_DHE_RSA, ENC_AES256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 */ {0x00A0,KEX_DH_RSA, ENC_AES, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_DH_RSA_WITH_AES_128_GCM_SHA256 */ {0x00A1,KEX_DH_RSA, ENC_AES256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_DH_RSA_WITH_AES_256_GCM_SHA384 */ {0x00A2,KEX_DHE_DSS, ENC_AES, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 */ {0x00A3,KEX_DHE_DSS, ENC_AES256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 */ {0x00A4,KEX_DH_DSS, ENC_AES, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_DH_DSS_WITH_AES_128_GCM_SHA256 */ {0x00A5,KEX_DH_DSS, ENC_AES256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_DH_DSS_WITH_AES_256_GCM_SHA384 */ {0x00A6,KEX_DH_ANON, ENC_AES, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_DH_anon_WITH_AES_128_GCM_SHA256 */ {0x00A7,KEX_DH_ANON, ENC_AES256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_DH_anon_WITH_AES_256_GCM_SHA384 */ {0x00A8,KEX_PSK, ENC_AES, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_PSK_WITH_AES_128_GCM_SHA256 */ {0x00A9,KEX_PSK, ENC_AES256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_PSK_WITH_AES_256_GCM_SHA384 */ {0x00AA,KEX_DHE_PSK, ENC_AES, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 */ {0x00AB,KEX_DHE_PSK, ENC_AES256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 */ {0x00AC,KEX_RSA_PSK, ENC_AES, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 */ {0x00AD,KEX_RSA_PSK, ENC_AES256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 */ {0x00AE,KEX_PSK, ENC_AES, 16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_PSK_WITH_AES_128_CBC_SHA256 */ {0x00AF,KEX_PSK, ENC_AES256, 16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_PSK_WITH_AES_256_CBC_SHA384 */ {0x00B0,KEX_PSK, ENC_NULL, 1, 0, 0,DIG_SHA256, MODE_STREAM}, /* TLS_PSK_WITH_NULL_SHA256 */ {0x00B1,KEX_PSK, ENC_NULL, 1, 0, 0,DIG_SHA384, MODE_STREAM}, /* TLS_PSK_WITH_NULL_SHA384 */ {0x00B2,KEX_DHE_PSK, ENC_AES, 16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 */ {0x00B3,KEX_DHE_PSK, ENC_AES256, 16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 */ {0x00B4,KEX_DHE_PSK, ENC_NULL, 1, 0, 0,DIG_SHA256, MODE_STREAM}, /* TLS_DHE_PSK_WITH_NULL_SHA256 */ {0x00B5,KEX_DHE_PSK, ENC_NULL, 1, 0, 0,DIG_SHA384, MODE_STREAM}, /* TLS_DHE_PSK_WITH_NULL_SHA384 */ {0x00B6,KEX_RSA_PSK, ENC_AES, 16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 */ {0x00B7,KEX_RSA_PSK, ENC_AES256, 16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 */ {0x00B8,KEX_RSA_PSK, ENC_NULL, 1, 0, 0,DIG_SHA256, MODE_STREAM}, /* TLS_RSA_PSK_WITH_NULL_SHA256 */ {0x00B9,KEX_RSA_PSK, ENC_NULL, 1, 0, 0,DIG_SHA384, MODE_STREAM}, /* TLS_RSA_PSK_WITH_NULL_SHA384 */ {0x00BA,KEX_RSA, ENC_CAMELLIA128,16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 */ {0x00BB,KEX_DH_DSS, ENC_CAMELLIA128,16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256 */ {0x00BC,KEX_DH_RSA, ENC_CAMELLIA128,16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256 */ {0x00BD,KEX_DHE_DSS, ENC_CAMELLIA128,16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256 */ {0x00BE,KEX_DHE_RSA, ENC_CAMELLIA128,16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 */ {0x00BF,KEX_DH_ANON, ENC_CAMELLIA128,16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256 */ {0x00C0,KEX_RSA, ENC_CAMELLIA256,16,256,256,DIG_SHA256, MODE_CBC }, /* TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 */ {0x00C1,KEX_DH_DSS, ENC_CAMELLIA256,16,256,256,DIG_SHA256, MODE_CBC }, /* TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256 */ {0x00C2,KEX_DH_RSA, ENC_CAMELLIA256,16,256,256,DIG_SHA256, MODE_CBC }, /* TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256 */ {0x00C3,KEX_DHE_DSS, ENC_CAMELLIA256,16,256,256,DIG_SHA256, MODE_CBC }, /* TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256 */ {0x00C4,KEX_DHE_RSA, ENC_CAMELLIA256,16,256,256,DIG_SHA256, MODE_CBC }, /* TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 */ {0x00C5,KEX_DH_ANON, ENC_CAMELLIA256,16,256,256,DIG_SHA256, MODE_CBC }, /* TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256 */ {0xC001,KEX_ECDH_ECDSA, ENC_NULL, 1, 0, 0,DIG_SHA, MODE_STREAM}, /* TLS_ECDH_ECDSA_WITH_NULL_SHA */ {0xC002,KEX_ECDH_ECDSA, ENC_RC4, 1,128,128,DIG_SHA, MODE_STREAM}, /* TLS_ECDH_ECDSA_WITH_RC4_128_SHA */ {0xC003,KEX_ECDH_ECDSA, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA */ {0xC004,KEX_ECDH_ECDSA, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA */ {0xC005,KEX_ECDH_ECDSA, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA */ {0xC006,KEX_ECDHE_ECDSA, ENC_NULL, 1, 0, 0,DIG_SHA, MODE_STREAM}, /* TLS_ECDHE_ECDSA_WITH_NULL_SHA */ {0xC007,KEX_ECDHE_ECDSA, ENC_RC4, 1,128,128,DIG_SHA, MODE_STREAM}, /* TLS_ECDHE_ECDSA_WITH_RC4_128_SHA */ {0xC008,KEX_ECDHE_ECDSA, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA */ {0xC009,KEX_ECDHE_ECDSA, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA */ {0xC00A,KEX_ECDHE_ECDSA, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA */ {0xC00B,KEX_ECDH_RSA, ENC_NULL, 1, 0, 0,DIG_SHA, MODE_STREAM}, /* TLS_ECDH_RSA_WITH_NULL_SHA */ {0xC00C,KEX_ECDH_RSA, ENC_RC4, 1,128,128,DIG_SHA, MODE_STREAM}, /* TLS_ECDH_RSA_WITH_RC4_128_SHA */ {0xC00D,KEX_ECDH_RSA, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA */ {0xC00E,KEX_ECDH_RSA, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_ECDH_RSA_WITH_AES_128_CBC_SHA */ {0xC00F,KEX_ECDH_RSA, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_ECDH_RSA_WITH_AES_256_CBC_SHA */ {0xC010,KEX_ECDHE_RSA, ENC_NULL, 1, 0, 0,DIG_SHA, MODE_STREAM}, /* TLS_ECDHE_RSA_WITH_NULL_SHA */ {0xC011,KEX_ECDHE_RSA, ENC_RC4, 1,128,128,DIG_SHA, MODE_STREAM}, /* TLS_ECDHE_RSA_WITH_RC4_128_SHA */ {0xC012,KEX_ECDHE_RSA, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA */ {0xC013,KEX_ECDHE_RSA, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA */ {0xC014,KEX_ECDHE_RSA, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA */ {0xC015,KEX_ECDH_ANON, ENC_NULL, 1, 0, 0,DIG_SHA, MODE_STREAM}, /* TLS_ECDH_anon_WITH_NULL_SHA */ {0xC016,KEX_ECDH_ANON, ENC_RC4, 1,128,128,DIG_SHA, MODE_STREAM}, /* TLS_ECDH_anon_WITH_RC4_128_SHA */ {0xC017,KEX_ECDH_ANON, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA */ {0xC018,KEX_ECDH_ANON, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_ECDH_anon_WITH_AES_128_CBC_SHA */ {0xC019,KEX_ECDH_ANON, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_ECDH_anon_WITH_AES_256_CBC_SHA */ {0xC023,KEX_ECDHE_ECDSA, ENC_AES, 16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 */ {0xC024,KEX_ECDHE_ECDSA, ENC_AES256, 16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 */ {0xC025,KEX_ECDH_ECDSA, ENC_AES, 16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 */ {0xC026,KEX_ECDH_ECDSA, ENC_AES256, 16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 */ {0xC027,KEX_ECDHE_RSA, ENC_AES, 16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 */ {0xC028,KEX_ECDHE_RSA, ENC_AES256, 16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 */ {0xC029,KEX_ECDH_RSA, ENC_AES, 16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 */ {0xC02A,KEX_ECDH_RSA, ENC_AES256, 16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 */ {0xC02B,KEX_ECDHE_ECDSA, ENC_AES, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 */ {0xC02C,KEX_ECDHE_ECDSA, ENC_AES256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 */ {0xC02D,KEX_ECDH_ECDSA, ENC_AES, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 */ {0xC02E,KEX_ECDH_ECDSA, ENC_AES256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 */ {0xC02F,KEX_ECDHE_RSA, ENC_AES, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 */ {0xC030,KEX_ECDHE_RSA, ENC_AES256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 */ {0xC031,KEX_ECDH_RSA, ENC_AES, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 */ {0xC032,KEX_ECDH_RSA, ENC_AES256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 */ {0xC033,KEX_ECDHE_PSK, ENC_RC4, 1,128,128,DIG_SHA, MODE_STREAM}, /* TLS_ECDHE_PSK_WITH_RC4_128_SHA */ {0xC034,KEX_ECDHE_PSK, ENC_3DES, 8,192,192,DIG_SHA, MODE_CBC }, /* TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA */ {0xC035,KEX_ECDHE_PSK, ENC_AES, 16,128,128,DIG_SHA, MODE_CBC }, /* TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA */ {0xC036,KEX_ECDHE_PSK, ENC_AES256, 16,256,256,DIG_SHA, MODE_CBC }, /* TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA */ {0xC037,KEX_ECDHE_PSK, ENC_AES, 16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 */ {0xC038,KEX_ECDHE_PSK, ENC_AES256, 16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 */ {0xC039,KEX_ECDHE_PSK, ENC_NULL, 1, 0, 0,DIG_SHA, MODE_STREAM}, /* TLS_ECDHE_PSK_WITH_NULL_SHA */ {0xC03A,KEX_ECDHE_PSK, ENC_NULL, 1, 0, 0,DIG_SHA256, MODE_STREAM}, /* TLS_ECDHE_PSK_WITH_NULL_SHA256 */ {0xC03B,KEX_ECDHE_PSK, ENC_NULL, 1, 0, 0,DIG_SHA384, MODE_STREAM}, /* TLS_ECDHE_PSK_WITH_NULL_SHA384 */ {0xC072,KEX_ECDHE_ECDSA, ENC_CAMELLIA128,16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 */ {0xC073,KEX_ECDHE_ECDSA, ENC_CAMELLIA256,16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 */ {0xC074,KEX_ECDH_ECDSA, ENC_CAMELLIA128,16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 */ {0xC075,KEX_ECDH_ECDSA, ENC_CAMELLIA256,16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 */ {0xC076,KEX_ECDHE_RSA, ENC_CAMELLIA128,16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 */ {0xC077,KEX_ECDHE_RSA, ENC_CAMELLIA256,16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 */ {0xC078,KEX_ECDH_RSA, ENC_CAMELLIA128,16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 */ {0xC079,KEX_ECDH_RSA, ENC_CAMELLIA256,16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 */ {0xC07A,KEX_RSA, ENC_CAMELLIA128, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 */ {0xC07B,KEX_RSA, ENC_CAMELLIA256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 */ {0xC07C,KEX_DHE_RSA, ENC_CAMELLIA128, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 */ {0xC07D,KEX_DHE_RSA, ENC_CAMELLIA256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 */ {0xC07E,KEX_DH_RSA, ENC_CAMELLIA128, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256 */ {0xC07F,KEX_DH_RSA, ENC_CAMELLIA256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384 */ {0xC080,KEX_DHE_DSS, ENC_CAMELLIA128, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_DHE_DSS_WITH_CAMELLIA_128_GCM_SHA256 */ {0xC081,KEX_DHE_DSS, ENC_CAMELLIA256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_DHE_DSS_WITH_CAMELLIA_256_GCM_SHA384 */ {0xC082,KEX_DH_DSS, ENC_CAMELLIA128, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256 */ {0xC083,KEX_DH_DSS, ENC_CAMELLIA256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384 */ {0xC084,KEX_DH_ANON, ENC_CAMELLIA128, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256 */ {0xC085,KEX_DH_ANON, ENC_CAMELLIA256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384 */ {0xC086,KEX_ECDHE_ECDSA, ENC_CAMELLIA128, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 */ {0xC087,KEX_ECDHE_ECDSA, ENC_CAMELLIA256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 */ {0xC088,KEX_ECDH_ECDSA, ENC_CAMELLIA128, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 */ {0xC089,KEX_ECDH_ECDSA, ENC_CAMELLIA256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 */ {0xC08A,KEX_ECDHE_RSA, ENC_CAMELLIA128, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 */ {0xC08B,KEX_ECDHE_RSA, ENC_CAMELLIA256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 */ {0xC08C,KEX_ECDH_RSA, ENC_CAMELLIA128, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 */ {0xC08D,KEX_ECDH_RSA, ENC_CAMELLIA256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 */ {0xC08E,KEX_PSK, ENC_CAMELLIA128, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 */ {0xC08F,KEX_PSK, ENC_CAMELLIA256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 */ {0xC090,KEX_DHE_PSK, ENC_CAMELLIA128, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 */ {0xC091,KEX_DHE_PSK, ENC_CAMELLIA256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 */ {0xC092,KEX_RSA_PSK, ENC_CAMELLIA128, 4,128,128,DIG_SHA256, MODE_GCM }, /* TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 */ {0xC093,KEX_RSA_PSK, ENC_CAMELLIA256, 4,256,256,DIG_SHA384, MODE_GCM }, /* TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 */ {0xC094,KEX_PSK, ENC_CAMELLIA128,16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 */ {0xC095,KEX_PSK, ENC_CAMELLIA256,16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 */ {0xC096,KEX_DHE_PSK, ENC_CAMELLIA128,16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 */ {0xC097,KEX_DHE_PSK, ENC_CAMELLIA256,16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 */ {0xC098,KEX_RSA_PSK, ENC_CAMELLIA128,16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 */ {0xC099,KEX_RSA_PSK, ENC_CAMELLIA256,16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 */ {0xC09A,KEX_ECDHE_PSK, ENC_CAMELLIA128,16,128,128,DIG_SHA256, MODE_CBC }, /* TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 */ {0xC09B,KEX_ECDHE_PSK, ENC_CAMELLIA256,16,256,256,DIG_SHA384, MODE_CBC }, /* TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 */ {0xC09C,KEX_RSA, ENC_AES, 4,128,128,DIG_NA, MODE_CCM }, /* TLS_RSA_WITH_AES_128_CCM */ {0xC09D,KEX_RSA, ENC_AES256, 4,256,256,DIG_NA, MODE_CCM }, /* TLS_RSA_WITH_AES_256_CCM */ {0xC09E,KEX_DHE_RSA, ENC_AES, 4,128,128,DIG_NA, MODE_CCM }, /* TLS_DHE_RSA_WITH_AES_128_CCM */ {0xC09F,KEX_DHE_RSA, ENC_AES256, 4,256,256,DIG_NA, MODE_CCM }, /* TLS_DHE_RSA_WITH_AES_256_CCM */ {0xC0A0,KEX_RSA, ENC_AES, 4,128,128,DIG_NA, MODE_CCM_8 }, /* TLS_RSA_WITH_AES_128_CCM_8 */ {0xC0A1,KEX_RSA, ENC_AES256, 4,256,256,DIG_NA, MODE_CCM_8 }, /* TLS_RSA_WITH_AES_256_CCM_8 */ {0xC0A2,KEX_DHE_RSA, ENC_AES, 4,128,128,DIG_NA, MODE_CCM_8 }, /* TLS_DHE_RSA_WITH_AES_128_CCM_8 */ {0xC0A3,KEX_DHE_RSA, ENC_AES256, 4,256,256,DIG_NA, MODE_CCM_8 }, /* TLS_DHE_RSA_WITH_AES_256_CCM_8 */ {0xC0A4,KEX_PSK, ENC_AES, 4,128,128,DIG_NA, MODE_CCM }, /* TLS_PSK_WITH_AES_128_CCM */ {0xC0A5,KEX_PSK, ENC_AES256, 4,256,256,DIG_NA, MODE_CCM }, /* TLS_PSK_WITH_AES_256_CCM */ {0xC0A6,KEX_DHE_PSK, ENC_AES, 4,128,128,DIG_NA, MODE_CCM }, /* TLS_DHE_PSK_WITH_AES_128_CCM */ {0xC0A7,KEX_DHE_PSK, ENC_AES256, 4,256,256,DIG_NA, MODE_CCM }, /* TLS_DHE_PSK_WITH_AES_256_CCM */ {0xC0A8,KEX_PSK, ENC_AES, 4,128,128,DIG_NA, MODE_CCM_8 }, /* TLS_PSK_WITH_AES_128_CCM_8 */ {0xC0A9,KEX_PSK, ENC_AES256, 4,256,256,DIG_NA, MODE_CCM_8 }, /* TLS_PSK_WITH_AES_256_CCM_8 */ {0xC0AA,KEX_DHE_PSK, ENC_AES, 4,128,128,DIG_NA, MODE_CCM_8 }, /* TLS_PSK_DHE_WITH_AES_128_CCM_8 */ {0xC0AB,KEX_DHE_PSK, ENC_AES256, 4,256,256,DIG_NA, MODE_CCM_8 }, /* TLS_PSK_DHE_WITH_AES_256_CCM_8 */ {0xC0AC,KEX_ECDHE_ECDSA, ENC_AES, 4,128,128,DIG_NA, MODE_CCM }, /* TLS_ECDHE_ECDSA_WITH_AES_128_CCM */ {0xC0AD,KEX_ECDHE_ECDSA, ENC_AES256, 4,256,256,DIG_NA, MODE_CCM }, /* TLS_ECDHE_ECDSA_WITH_AES_256_CCM */ {0xC0AE,KEX_ECDHE_ECDSA, ENC_AES, 4,128,128,DIG_NA, MODE_CCM_8 }, /* TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 */ {0xC0AF,KEX_ECDHE_ECDSA, ENC_AES256, 4,256,256,DIG_NA, MODE_CCM_8 }, /* TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 */ {-1, 0, 0, 0, 0, 0,0, MODE_STREAM} }; #define MAX_BLOCK_SIZE 16 #define MAX_KEY_SIZE 32 int ssl_find_cipher(int num,SslCipherSuite* cs) { SslCipherSuite *c; for(c=cipher_suites;c->number!=-1;c++){ if(c->number==num){ *cs=*c; return 0; } } return -1; } #else /* ! HAVE_LIBGCRYPT */ int ssl_find_cipher(int num,SslCipherSuite* cs) { ssl_debug_printf("ssl_find_cipher: dummy without gnutls. num %d cs %p\n", num,cs); return 0; } #endif /* ! HAVE_LIBGCRYPT */ /* Digests, Ciphers and Cipher Suites registry }}} */ #ifdef HAVE_LIBGCRYPT /* HMAC and the Pseudorandom function {{{ */ static void tls_hash(StringInfo *secret, StringInfo *seed, gint md, StringInfo *out, guint out_len) { /* RFC 2246 5. HMAC and the pseudorandom function * '+' denotes concatenation. * P_hash(secret, seed) = HMAC_hash(secret, A(1) + seed) + * HMAC_hash(secret, A(2) + seed) + ... * A(0) = seed * A(i) = HMAC_hash(secret, A(i - 1)) */ guint8 *ptr; guint left, tocpy; guint8 *A; guint8 _A[DIGEST_MAX_SIZE], tmp[DIGEST_MAX_SIZE]; guint A_l, tmp_l; SSL_HMAC hm; ptr = out->data; left = out_len; ssl_print_string("tls_hash: hash secret", secret); ssl_print_string("tls_hash: hash seed", seed); /* A(0) = seed */ A = seed->data; A_l = seed->data_len; while (left) { /* A(i) = HMAC_hash(secret, A(i-1)) */ ssl_hmac_init(&hm, secret->data, secret->data_len, md); ssl_hmac_update(&hm, A, A_l); A_l = sizeof(_A); /* upper bound len for hash output */ ssl_hmac_final(&hm, _A, &A_l); ssl_hmac_cleanup(&hm); A = _A; /* HMAC_hash(secret, A(i) + seed) */ ssl_hmac_init(&hm, secret->data, secret->data_len, md); ssl_hmac_update(&hm, A, A_l); ssl_hmac_update(&hm, seed->data, seed->data_len); tmp_l = sizeof(tmp); /* upper bound len for hash output */ ssl_hmac_final(&hm, tmp, &tmp_l); ssl_hmac_cleanup(&hm); /* ssl_hmac_final puts the actual digest output size in tmp_l */ tocpy = MIN(left, tmp_l); memcpy(ptr, tmp, tocpy); ptr += tocpy; left -= tocpy; } out->data_len = out_len; ssl_print_string("hash out", out); } static gboolean tls_prf(StringInfo* secret, const gchar *usage, StringInfo* rnd1, StringInfo* rnd2, StringInfo* out, guint out_len) { StringInfo seed, sha_out, md5_out; guint8 *ptr; StringInfo s1, s2; guint i,s_l; size_t usage_len, rnd2_len; gboolean success = FALSE; usage_len = strlen(usage); rnd2_len = rnd2 ? rnd2->data_len : 0; /* initalize buffer for sha, md5 random seed*/ if (ssl_data_alloc(&sha_out, MAX(out_len, 20)) < 0) { ssl_debug_printf("tls_prf: can't allocate sha out\n"); return FALSE; } if (ssl_data_alloc(&md5_out, MAX(out_len, 16)) < 0) { ssl_debug_printf("tls_prf: can't allocate md5 out\n"); goto free_sha; } if (ssl_data_alloc(&seed, usage_len+rnd1->data_len+rnd2_len) < 0) { ssl_debug_printf("tls_prf: can't allocate rnd %d\n", (int) (usage_len+rnd1->data_len+rnd2_len)); goto free_md5; } ptr=seed.data; memcpy(ptr,usage,usage_len); ptr+=usage_len; memcpy(ptr,rnd1->data,rnd1->data_len); if (rnd2_len > 0) { ptr+=rnd1->data_len; memcpy(ptr,rnd2->data,rnd2->data_len); /*ptr+=rnd2->data_len;*/ } /* initalize buffer for client/server seeds*/ s_l=secret->data_len/2 + secret->data_len%2; if (ssl_data_alloc(&s1, s_l) < 0) { ssl_debug_printf("tls_prf: can't allocate secret %d\n", s_l); goto free_seed; } if (ssl_data_alloc(&s2, s_l) < 0) { ssl_debug_printf("tls_prf: can't allocate secret(2) %d\n", s_l); goto free_s1; } memcpy(s1.data,secret->data,s_l); memcpy(s2.data,secret->data + (secret->data_len - s_l),s_l); ssl_debug_printf("tls_prf: tls_hash(md5 secret_len %d seed_len %d )\n", s1.data_len, seed.data_len); tls_hash(&s1, &seed, ssl_get_digest_by_name("MD5"), &md5_out, out_len); ssl_debug_printf("tls_prf: tls_hash(sha)\n"); tls_hash(&s2, &seed, ssl_get_digest_by_name("SHA1"), &sha_out, out_len); for (i = 0; i < out_len; i++) out->data[i] = md5_out.data[i] ^ sha_out.data[i]; /* success, now store the new meaningful data length */ out->data_len = out_len; success = TRUE; ssl_print_string("PRF out",out); g_free(s2.data); free_s1: g_free(s1.data); free_seed: g_free(seed.data); free_md5: g_free(md5_out.data); free_sha: g_free(sha_out.data); return success; } static gboolean tls12_prf(gint md, StringInfo* secret, const gchar* usage, StringInfo* rnd1, StringInfo* rnd2, StringInfo* out, guint out_len) { StringInfo label_seed; size_t usage_len, rnd2_len; rnd2_len = rnd2 ? rnd2->data_len : 0; usage_len = strlen(usage); if (ssl_data_alloc(&label_seed, usage_len+rnd1->data_len+rnd2_len) < 0) { ssl_debug_printf("tls12_prf: can't allocate label_seed\n"); return FALSE; } memcpy(label_seed.data, usage, usage_len); memcpy(label_seed.data+usage_len, rnd1->data, rnd1->data_len); if (rnd2_len > 0) memcpy(label_seed.data+usage_len+rnd1->data_len, rnd2->data, rnd2->data_len); ssl_debug_printf("tls12_prf: tls_hash(hash_alg %s secret_len %d seed_len %d )\n", gcry_md_algo_name(md), secret->data_len, label_seed.data_len); tls_hash(secret, &label_seed, md, out, out_len); g_free(label_seed.data); ssl_print_string("PRF out", out); return TRUE; } static void ssl3_generate_export_iv(StringInfo *r1, StringInfo *r2, StringInfo *out, guint out_len) { SSL_MD5_CTX md5; guint8 tmp[16]; ssl_md5_init(&md5); ssl_md5_update(&md5,r1->data,r1->data_len); ssl_md5_update(&md5,r2->data,r2->data_len); ssl_md5_final(tmp,&md5); ssl_md5_cleanup(&md5); DISSECTOR_ASSERT(out_len <= sizeof(tmp)); ssl_data_set(out, tmp, out_len); ssl_print_string("export iv", out); } static gboolean ssl3_prf(StringInfo* secret, const gchar* usage, StringInfo* rnd1, StringInfo* rnd2, StringInfo* out, guint out_len) { SSL_MD5_CTX md5; SSL_SHA_CTX sha; guint off; gint i = 0,j; guint8 buf[20]; for (off = 0; off < out_len; off += 16) { guchar outbuf[16]; i++; ssl_debug_printf("ssl3_prf: sha1_hash(%d)\n",i); /* A, BB, CCC, ... */ for(j=0;jdata,secret->data_len); if(!strcmp(usage,"client write key") || !strcmp(usage,"server write key")){ if (rnd2) ssl_sha_update(&sha,rnd2->data,rnd2->data_len); ssl_sha_update(&sha,rnd1->data,rnd1->data_len); } else{ ssl_sha_update(&sha,rnd1->data,rnd1->data_len); if (rnd2) ssl_sha_update(&sha,rnd2->data,rnd2->data_len); } ssl_sha_final(buf,&sha); ssl_sha_cleanup(&sha); ssl_debug_printf("ssl3_prf: md5_hash(%d) datalen %d\n",i, secret->data_len); ssl_md5_init(&md5); ssl_md5_update(&md5,secret->data,secret->data_len); ssl_md5_update(&md5,buf,20); ssl_md5_final(outbuf,&md5); ssl_md5_cleanup(&md5); memcpy(out->data + off, outbuf, MIN(out_len - off, 16)); } out->data_len = out_len; return TRUE; } /* out_len is the wanted output length for the pseudorandom function */ static gboolean prf(SslDecryptSession *ssl, StringInfo *secret, const gchar *usage, StringInfo *rnd1, StringInfo *rnd2, StringInfo *out, guint out_len) { switch (ssl->session.version) { case SSLV3_VERSION: return ssl3_prf(secret, usage, rnd1, rnd2, out, out_len); case TLSV1_VERSION: case TLSV1DOT1_VERSION: case DTLSV1DOT0_VERSION: case DTLSV1DOT0_OPENSSL_VERSION: return tls_prf(secret, usage, rnd1, rnd2, out, out_len); default: /* TLSv1.2 */ switch (ssl->cipher_suite.dig) { case DIG_SHA384: return tls12_prf(GCRY_MD_SHA384, secret, usage, rnd1, rnd2, out, out_len); default: return tls12_prf(GCRY_MD_SHA256, secret, usage, rnd1, rnd2, out, out_len); } } } static gint tls_handshake_hash(SslDecryptSession* ssl, StringInfo* out) { SSL_MD5_CTX md5; SSL_SHA_CTX sha; if (ssl_data_alloc(out, 36) < 0) return -1; ssl_md5_init(&md5); ssl_md5_update(&md5,ssl->handshake_data.data,ssl->handshake_data.data_len); ssl_md5_final(out->data,&md5); ssl_md5_cleanup(&md5); ssl_sha_init(&sha); ssl_sha_update(&sha,ssl->handshake_data.data,ssl->handshake_data.data_len); ssl_sha_final(out->data+16,&sha); ssl_sha_cleanup(&sha); return 0; } static gint tls12_handshake_hash(SslDecryptSession* ssl, gint md, StringInfo* out) { SSL_MD mc; guint8 tmp[48]; guint len; ssl_md_init(&mc, md); ssl_md_update(&mc,ssl->handshake_data.data,ssl->handshake_data.data_len); ssl_md_final(&mc, tmp, &len); ssl_md_cleanup(&mc); if (ssl_data_alloc(out, len) < 0) return -1; memcpy(out->data, tmp, len); return 0; } /* HMAC and the Pseudorandom function }}} */ #else /* ! HAVE_LIBGCRYPT */ /* Stub code when decryption support is not available. {{{ */ gboolean ssl_generate_pre_master_secret(SslDecryptSession *ssl_session _U_, guint32 length _U_, tvbuff_t *tvb _U_, guint32 offset _U_, const gchar *ssl_psk _U_, const ssl_master_key_map_t *mk_map _U_) { ssl_debug_printf("%s: impossible without gnutls.\n", G_STRFUNC); return FALSE; } int ssl_generate_keyring_material(SslDecryptSession*ssl) { ssl_debug_printf("ssl_generate_keyring_material: impossible without gnutls. ssl %p\n", ssl); return 0; } void ssl_change_cipher(SslDecryptSession *ssl_session, gboolean server) { ssl_debug_printf("ssl_change_cipher %s: makes no sense without gnutls. ssl %p\n", (server)?"SERVER":"CLIENT", ssl_session); } int ssl_decrypt_record(SslDecryptSession*ssl, SslDecoder* decoder, gint ct, const guchar* in, guint inl, StringInfo* comp_str _U_, StringInfo* out, guint* outl) { ssl_debug_printf("ssl_decrypt_record: impossible without gnutls. ssl %p" "decoder %p ct %d, in %p inl %d out %p outl %p\n", ssl, decoder, ct, in, inl, out, outl); return 0; } /* }}} */ #endif /* ! HAVE_LIBGCRYPT */ #ifdef HAVE_LIBGCRYPT /* Record Decompression (after decryption) {{{ */ #ifdef HAVE_LIBZ /* memory allocation functions for zlib initialization */ static void* ssl_zalloc(void* opaque _U_, unsigned int no, unsigned int size) { return g_malloc0(no*size); } static void ssl_zfree(void* opaque _U_, void* addr) { g_free(addr); } #endif static SslDecompress* ssl_create_decompressor(gint compression) { SslDecompress *decomp; #ifdef HAVE_LIBZ int err; #endif if (compression == 0) return NULL; ssl_debug_printf("ssl_create_decompressor: compression method %d\n", compression); decomp = (SslDecompress *)wmem_alloc(wmem_file_scope(), sizeof(SslDecompress)); decomp->compression = compression; switch (decomp->compression) { #ifdef HAVE_LIBZ case 1: /* DEFLATE */ decomp->istream.zalloc = ssl_zalloc; decomp->istream.zfree = ssl_zfree; decomp->istream.opaque = Z_NULL; decomp->istream.next_in = Z_NULL; decomp->istream.next_out = Z_NULL; decomp->istream.avail_in = 0; decomp->istream.avail_out = 0; err = inflateInit_(&decomp->istream, ZLIB_VERSION, sizeof(z_stream)); if (err != Z_OK) { ssl_debug_printf("ssl_create_decompressor: inflateInit_() failed - %d\n", err); return NULL; } break; #endif default: ssl_debug_printf("ssl_create_decompressor: unsupported compression method %d\n", decomp->compression); return NULL; } return decomp; } #ifdef HAVE_LIBZ static int ssl_decompress_record(SslDecompress* decomp, const guchar* in, guint inl, StringInfo* out_str, guint* outl) { gint err; switch (decomp->compression) { case 1: /* DEFLATE */ err = Z_OK; if (out_str->data_len < 16384) { /* maximal plain length */ ssl_data_realloc(out_str, 16384); } decomp->istream.next_in = (guchar*)in; decomp->istream.avail_in = inl; decomp->istream.next_out = out_str->data; decomp->istream.avail_out = out_str->data_len; if (inl > 0) err = inflate(&decomp->istream, Z_SYNC_FLUSH); if (err != Z_OK) { ssl_debug_printf("ssl_decompress_record: inflate() failed - %d\n", err); return -1; } *outl = out_str->data_len - decomp->istream.avail_out; break; default: ssl_debug_printf("ssl_decompress_record: unsupported compression method %d\n", decomp->compression); return -1; } return 0; } #else int ssl_decompress_record(SslDecompress* decomp _U_, const guchar* in _U_, guint inl _U_, StringInfo* out_str _U_, guint* outl _U_) { ssl_debug_printf("ssl_decompress_record: unsupported compression method %d\n", decomp->compression); return -1; } #endif /* Record Decompression (after decryption) }}} */ #endif /* HAVE_LIBGCRYPT */ #ifdef HAVE_LIBGCRYPT /* Create a new structure to store decrypted chunks. {{{ */ static SslFlow* ssl_create_flow(void) { SslFlow *flow; flow = (SslFlow *)wmem_alloc(wmem_file_scope(), sizeof(SslFlow)); flow->byte_seq = 0; flow->flags = 0; flow->multisegment_pdus = wmem_tree_new(wmem_file_scope()); return flow; } /* }}} */ /* Use the negotiated security parameters for decryption. {{{ */ void ssl_change_cipher(SslDecryptSession *ssl_session, gboolean server) { ssl_debug_printf("ssl_change_cipher %s\n", (server)?"SERVER":"CLIENT"); if (server) { ssl_session->server = ssl_session->server_new; ssl_session->server_new = NULL; } else { ssl_session->client = ssl_session->client_new; ssl_session->client_new = NULL; } } /* }}} */ /* Init cipher state given some security parameters. {{{ */ static SslDecoder* ssl_create_decoder(SslCipherSuite *cipher_suite, gint compression, guint8 *mk, guint8 *sk, guint8 *iv) { SslDecoder *dec; gint ciph; dec = (SslDecoder *)wmem_alloc0(wmem_file_scope(), sizeof(SslDecoder)); /* Find the SSLeay cipher */ if(cipher_suite->enc!=ENC_NULL) { ssl_debug_printf("ssl_create_decoder CIPHER: %s\n", ciphers[cipher_suite->enc-0x30]); ciph=ssl_get_cipher_by_name(ciphers[cipher_suite->enc-0x30]); } else { ssl_debug_printf("ssl_create_decoder CIPHER: %s\n", "NULL"); ciph = -1; } if (ciph == 0) { ssl_debug_printf("ssl_create_decoder can't find cipher %s\n", ciphers[cipher_suite->enc > ENC_NULL ? ENC_NULL-0x30 : (cipher_suite->enc-0x30)]); return NULL; } /* init mac buffer: mac storage is embedded into decoder struct to save a memory allocation and waste samo more memory*/ dec->cipher_suite=cipher_suite; dec->compression = compression; /* AEED ciphers don't have a MAC but need to keep the write IV instead */ if (mk == NULL) { dec->write_iv.data = dec->_mac_key_or_write_iv; ssl_data_set(&dec->write_iv, iv, cipher_suite->block); } else { dec->mac_key.data = dec->_mac_key_or_write_iv; ssl_data_set(&dec->mac_key, mk, ssl_cipher_suite_dig(cipher_suite)->len); } dec->seq = 0; dec->decomp = ssl_create_decompressor(compression); dec->flow = ssl_create_flow(); if (dec->evp) ssl_cipher_cleanup(&dec->evp); if (ssl_cipher_init(&dec->evp,ciph,sk,iv,cipher_suite->mode) < 0) { ssl_debug_printf("ssl_create_decoder: can't create cipher id:%d mode:%d\n", ciph, cipher_suite->mode); return NULL; } ssl_debug_printf("decoder initialized (digest len %d)\n", ssl_cipher_suite_dig(cipher_suite)->len); return dec; } /* }}} */ /* (Pre-)master secrets calculations {{{ */ #ifdef HAVE_LIBGNUTLS static int ssl_decrypt_pre_master_secret(SslDecryptSession *ssl_session, StringInfo *encrypted_pre_master, gcry_sexp_t pk); #endif /* HAVE_LIBGNUTLS */ static gboolean ssl_restore_master_key(SslDecryptSession *ssl, const char *label, gboolean is_pre_master, GHashTable *ht, StringInfo *key); gboolean ssl_generate_pre_master_secret(SslDecryptSession *ssl_session, guint32 length, tvbuff_t *tvb, guint32 offset, const gchar *ssl_psk, const ssl_master_key_map_t *mk_map) { /* check for required session data */ ssl_debug_printf("%s: found SSL_HND_CLIENT_KEY_EXCHG, state %X\n", G_STRFUNC, ssl_session->state); if ((ssl_session->state & (SSL_CIPHER|SSL_CLIENT_RANDOM|SSL_SERVER_RANDOM|SSL_VERSION)) != (SSL_CIPHER|SSL_CLIENT_RANDOM|SSL_SERVER_RANDOM|SSL_VERSION)) { ssl_debug_printf("%s: not enough data to generate key (required state %X)\n", G_STRFUNC, (SSL_CIPHER|SSL_CLIENT_RANDOM|SSL_SERVER_RANDOM|SSL_VERSION)); return FALSE; } /* check to see if the PMS was provided to us*/ if (ssl_restore_master_key(ssl_session, "Unencrypted pre-master secret", TRUE, mk_map->pms, &ssl_session->client_random)) { return TRUE; } if (ssl_session->cipher_suite.kex == KEX_PSK) { /* calculate pre master secret*/ StringInfo pre_master_secret; guint psk_len, pre_master_len; if (!ssl_psk || (ssl_psk[0] == 0)) { ssl_debug_printf("%s: can't find pre-shared-key\n", G_STRFUNC); return FALSE; } /* convert hex string into char*/ if (!from_hex(&ssl_session->psk, ssl_psk, strlen(ssl_psk))) { ssl_debug_printf("%s: ssl.psk/dtls.psk contains invalid hex\n", G_STRFUNC); return FALSE; } psk_len = ssl_session->psk.data_len; if (psk_len >= (2 << 15)) { ssl_debug_printf("%s: ssl.psk/dtls.psk must not be larger than 2^15 - 1\n", G_STRFUNC); return FALSE; } pre_master_len = psk_len * 2 + 4; pre_master_secret.data = (guchar *)wmem_alloc(wmem_file_scope(), pre_master_len); pre_master_secret.data_len = pre_master_len; /* 2 bytes psk_len*/ pre_master_secret.data[0] = psk_len >> 8; pre_master_secret.data[1] = psk_len & 0xFF; /* psk_len bytes times 0*/ memset(&pre_master_secret.data[2], 0, psk_len); /* 2 bytes psk_len*/ pre_master_secret.data[psk_len + 2] = psk_len >> 8; pre_master_secret.data[psk_len + 3] = psk_len & 0xFF; /* psk*/ memcpy(&pre_master_secret.data[psk_len + 4], ssl_session->psk.data, psk_len); ssl_session->pre_master_secret.data = pre_master_secret.data; ssl_session->pre_master_secret.data_len = pre_master_len; /*ssl_debug_printf("pre master secret",&ssl->pre_master_secret);*/ /* Remove the master secret if it was there. This forces keying material regeneration in case we're renegotiating */ ssl_session->state &= ~(SSL_MASTER_SECRET|SSL_HAVE_SESSION_KEY); ssl_session->state |= SSL_PRE_MASTER_SECRET; return TRUE; } else { StringInfo encrypted_pre_master; guint encrlen, skip; encrlen = length; skip = 0; /* get encrypted data, on tls1 we have to skip two bytes * (it's the encrypted len and should be equal to record len - 2) * in case of rsa1024 that would be 128 + 2 = 130; for psk not necessary */ if (ssl_session->cipher_suite.kex == KEX_RSA && (ssl_session->session.version == TLSV1_VERSION || ssl_session->session.version == TLSV1DOT1_VERSION || ssl_session->session.version == TLSV1DOT2_VERSION || ssl_session->session.version == DTLSV1DOT0_VERSION || ssl_session->session.version == DTLSV1DOT2_VERSION)) { encrlen = tvb_get_ntohs(tvb, offset); skip = 2; if (encrlen > length - 2) { ssl_debug_printf("%s: wrong encrypted length (%d max %d)\n", G_STRFUNC, encrlen, length); return FALSE; } } /* the valid lower bound is higher than 8, but it is sufficient for the * ssl keylog file below */ if (encrlen < 8) { ssl_debug_printf("%s: invalid encrypted pre-master key length %d\n", G_STRFUNC, encrlen); return FALSE; } encrypted_pre_master.data = (guchar *)wmem_alloc(wmem_file_scope(), encrlen); encrypted_pre_master.data_len = encrlen; tvb_memcpy(tvb, encrypted_pre_master.data, offset+skip, encrlen); #ifdef HAVE_LIBGNUTLS if (ssl_session->private_key) { /* try to decrypt encrypted pre-master with RSA key */ if (ssl_decrypt_pre_master_secret(ssl_session, &encrypted_pre_master, ssl_session->private_key)) return TRUE; ssl_debug_printf("%s: can't decrypt pre-master secret\n", G_STRFUNC); } #endif /* HAVE_LIBGNUTLS */ /* try to find the pre-master secret from the encrypted one. The * ssl key logfile stores only the first 8 bytes, so truncate it */ encrypted_pre_master.data_len = 8; if (ssl_restore_master_key(ssl_session, "Encrypted pre-master secret", TRUE, mk_map->pre_master, &encrypted_pre_master)) return TRUE; } return FALSE; } int ssl_generate_keyring_material(SslDecryptSession*ssl_session) { StringInfo key_block; guint8 _iv_c[MAX_BLOCK_SIZE],_iv_s[MAX_BLOCK_SIZE]; guint8 _key_c[MAX_KEY_SIZE],_key_s[MAX_KEY_SIZE]; gint needed; guint8 *ptr,*c_wk,*s_wk,*c_mk,*s_mk,*c_iv = _iv_c,*s_iv = _iv_s; /* check for enough info to proced */ guint need_all = SSL_CIPHER|SSL_CLIENT_RANDOM|SSL_SERVER_RANDOM|SSL_VERSION; guint need_any = SSL_MASTER_SECRET | SSL_PRE_MASTER_SECRET; if (((ssl_session->state & need_all) != need_all) || ((ssl_session->state & need_any) == 0)) { ssl_debug_printf("ssl_generate_keyring_material not enough data to generate key " "(0x%02X required 0x%02X or 0x%02X)\n", ssl_session->state, need_all|SSL_MASTER_SECRET, need_all|SSL_PRE_MASTER_SECRET); return -1; } /* if master key is not available, generate is from the pre-master secret */ if (!(ssl_session->state & SSL_MASTER_SECRET)) { if ((ssl_session->state & SSL_EXTENDED_MASTER_SECRET_MASK) == SSL_EXTENDED_MASTER_SECRET_MASK) { StringInfo handshake_hashed_data; gint ret; handshake_hashed_data.data = NULL; handshake_hashed_data.data_len = 0; ssl_debug_printf("%s:PRF(pre_master_secret_extended)\n", G_STRFUNC); ssl_print_string("pre master secret",&ssl_session->pre_master_secret); DISSECTOR_ASSERT(ssl_session->handshake_data.data_len > 0); switch(ssl_session->session.version) { case TLSV1_VERSION: case TLSV1DOT1_VERSION: case DTLSV1DOT0_VERSION: case DTLSV1DOT0_OPENSSL_VERSION: ret = tls_handshake_hash(ssl_session, &handshake_hashed_data); break; default: switch (ssl_session->cipher_suite.dig) { case DIG_SHA384: ret = tls12_handshake_hash(ssl_session, GCRY_MD_SHA384, &handshake_hashed_data); break; default: ret = tls12_handshake_hash(ssl_session, GCRY_MD_SHA256, &handshake_hashed_data); break; } break; } if (ret) { ssl_debug_printf("%s can't generate handshake hash\n", G_STRFUNC); return -1; } wmem_free(wmem_file_scope(), ssl_session->handshake_data.data); ssl_session->handshake_data.data = NULL; ssl_session->handshake_data.data_len = 0; if (!prf(ssl_session, &ssl_session->pre_master_secret, "extended master secret", &handshake_hashed_data, NULL, &ssl_session->master_secret, SSL_MASTER_SECRET_LENGTH)) { ssl_debug_printf("%s can't generate master_secret\n", G_STRFUNC); g_free(handshake_hashed_data.data); return -1; } g_free(handshake_hashed_data.data); } else { ssl_debug_printf("%s:PRF(pre_master_secret)\n", G_STRFUNC); ssl_print_string("pre master secret",&ssl_session->pre_master_secret); ssl_print_string("client random",&ssl_session->client_random); ssl_print_string("server random",&ssl_session->server_random); if (!prf(ssl_session, &ssl_session->pre_master_secret, "master secret", &ssl_session->client_random, &ssl_session->server_random, &ssl_session->master_secret, SSL_MASTER_SECRET_LENGTH)) { ssl_debug_printf("%s can't generate master_secret\n", G_STRFUNC); return -1; } } ssl_print_string("master secret",&ssl_session->master_secret); /* the pre-master secret has been 'consumend' so we must clear it now */ ssl_session->state &= ~SSL_PRE_MASTER_SECRET; ssl_session->state |= SSL_MASTER_SECRET; } /* Compute the key block. First figure out how much data we need*/ needed=ssl_cipher_suite_dig(&ssl_session->cipher_suite)->len*2; needed+=ssl_session->cipher_suite.bits / 4; if(ssl_session->cipher_suite.block>1) needed+=ssl_session->cipher_suite.block*2; key_block.data = (guchar *)g_malloc(needed); ssl_debug_printf("%s sess key generation\n", G_STRFUNC); if (!prf(ssl_session, &ssl_session->master_secret, "key expansion", &ssl_session->server_random,&ssl_session->client_random, &key_block, needed)) { ssl_debug_printf("%s can't generate key_block\n", G_STRFUNC); goto fail; } ssl_print_string("key expansion", &key_block); ptr=key_block.data; /* AEAD ciphers do not have a separate MAC */ if (ssl_session->cipher_suite.mode == MODE_GCM || ssl_session->cipher_suite.mode == MODE_CCM || ssl_session->cipher_suite.mode == MODE_CCM_8) { c_mk = s_mk = NULL; } else { c_mk=ptr; ptr+=ssl_cipher_suite_dig(&ssl_session->cipher_suite)->len; s_mk=ptr; ptr+=ssl_cipher_suite_dig(&ssl_session->cipher_suite)->len; } c_wk=ptr; ptr+=ssl_session->cipher_suite.eff_bits/8; s_wk=ptr; ptr+=ssl_session->cipher_suite.eff_bits/8; if(ssl_session->cipher_suite.block>1){ c_iv=ptr; ptr+=ssl_session->cipher_suite.block; s_iv=ptr; /*ptr+=ssl_session->cipher_suite.block;*/ } /* export ciphers work with a smaller key length */ if (ssl_session->cipher_suite.eff_bits < ssl_session->cipher_suite.bits) { if(ssl_session->cipher_suite.block>1){ /* We only have room for MAX_BLOCK_SIZE bytes IVs, but that's all we should need. This is a sanity check */ if(ssl_session->cipher_suite.block>MAX_BLOCK_SIZE) { ssl_debug_printf("%s cipher suite block must be at most %d nut is %d\n", G_STRFUNC, MAX_BLOCK_SIZE, ssl_session->cipher_suite.block); goto fail; } if(ssl_session->session.version==SSLV3_VERSION){ /* The length of these fields are ignored by this caller */ StringInfo iv_c, iv_s; iv_c.data = _iv_c; iv_s.data = _iv_s; ssl_debug_printf("%s ssl3_generate_export_iv\n", G_STRFUNC); ssl3_generate_export_iv(&ssl_session->client_random, &ssl_session->server_random, &iv_c, ssl_session->cipher_suite.block); ssl_debug_printf("%s ssl3_generate_export_iv(2)\n", G_STRFUNC); ssl3_generate_export_iv(&ssl_session->server_random, &ssl_session->client_random, &iv_s, ssl_session->cipher_suite.block); } else{ guint8 _iv_block[MAX_BLOCK_SIZE * 2]; StringInfo iv_block; StringInfo key_null; guint8 _key_null; key_null.data = &_key_null; key_null.data_len = 0; iv_block.data = _iv_block; ssl_debug_printf("%s prf(iv_block)\n", G_STRFUNC); if (!prf(ssl_session, &key_null, "IV block", &ssl_session->client_random, &ssl_session->server_random, &iv_block, ssl_session->cipher_suite.block * 2)) { ssl_debug_printf("%s can't generate tls31 iv block\n", G_STRFUNC); goto fail; } memcpy(_iv_c,iv_block.data,ssl_session->cipher_suite.block); memcpy(_iv_s,iv_block.data+ssl_session->cipher_suite.block, ssl_session->cipher_suite.block); } c_iv=_iv_c; s_iv=_iv_s; } if (ssl_session->session.version==SSLV3_VERSION){ SSL_MD5_CTX md5; ssl_debug_printf("%s MD5(client_random)\n", G_STRFUNC); ssl_md5_init(&md5); ssl_md5_update(&md5,c_wk,ssl_session->cipher_suite.eff_bits/8); ssl_md5_update(&md5,ssl_session->client_random.data, ssl_session->client_random.data_len); ssl_md5_update(&md5,ssl_session->server_random.data, ssl_session->server_random.data_len); ssl_md5_final(_key_c,&md5); ssl_md5_cleanup(&md5); c_wk=_key_c; ssl_md5_init(&md5); ssl_debug_printf("%s MD5(server_random)\n", G_STRFUNC); ssl_md5_update(&md5,s_wk,ssl_session->cipher_suite.eff_bits/8); ssl_md5_update(&md5,ssl_session->server_random.data, ssl_session->server_random.data_len); ssl_md5_update(&md5,ssl_session->client_random.data, ssl_session->client_random.data_len); ssl_md5_final(_key_s,&md5); ssl_md5_cleanup(&md5); s_wk=_key_s; } else{ StringInfo key_c, key_s, k; key_c.data = _key_c; key_s.data = _key_s; k.data = c_wk; k.data_len = ssl_session->cipher_suite.eff_bits/8; ssl_debug_printf("%s PRF(key_c)\n", G_STRFUNC); if (!prf(ssl_session, &k, "client write key", &ssl_session->client_random, &ssl_session->server_random, &key_c, sizeof(_key_c))) { ssl_debug_printf("%s can't generate tll31 server key \n", G_STRFUNC); goto fail; } c_wk=_key_c; k.data = s_wk; k.data_len = ssl_session->cipher_suite.eff_bits/8; ssl_debug_printf("%s PRF(key_s)\n", G_STRFUNC); if (!prf(ssl_session, &k, "server write key", &ssl_session->client_random, &ssl_session->server_random, &key_s, sizeof(_key_s))) { ssl_debug_printf("%s can't generate tll31 client key \n", G_STRFUNC); goto fail; } s_wk=_key_s; } } /* show key material info */ if (c_mk != NULL) { ssl_print_data("Client MAC key",c_mk,ssl_cipher_suite_dig(&ssl_session->cipher_suite)->len); ssl_print_data("Server MAC key",s_mk,ssl_cipher_suite_dig(&ssl_session->cipher_suite)->len); } ssl_print_data("Client Write key",c_wk,ssl_session->cipher_suite.bits/8); ssl_print_data("Server Write key",s_wk,ssl_session->cipher_suite.bits/8); if(ssl_session->cipher_suite.block>1) { ssl_print_data("Client Write IV",c_iv,ssl_session->cipher_suite.block); ssl_print_data("Server Write IV",s_iv,ssl_session->cipher_suite.block); } else { ssl_print_data("Client Write IV",c_iv,8); ssl_print_data("Server Write IV",s_iv,8); } /* create both client and server ciphers*/ ssl_debug_printf("%s ssl_create_decoder(client)\n", G_STRFUNC); ssl_session->client_new = ssl_create_decoder(&ssl_session->cipher_suite, ssl_session->session.compression, c_mk, c_wk, c_iv); if (!ssl_session->client_new) { ssl_debug_printf("%s can't init client decoder\n", G_STRFUNC); goto fail; } ssl_debug_printf("%s ssl_create_decoder(server)\n", G_STRFUNC); ssl_session->server_new = ssl_create_decoder(&ssl_session->cipher_suite, ssl_session->session.compression, s_mk, s_wk, s_iv); if (!ssl_session->server_new) { ssl_debug_printf("%s can't init client decoder\n", G_STRFUNC); goto fail; } ssl_debug_printf("%s: client seq %d, server seq %d\n", G_STRFUNC, ssl_session->client_new->seq, ssl_session->server_new->seq); g_free(key_block.data); ssl_session->state |= SSL_HAVE_SESSION_KEY; return 0; fail: g_free(key_block.data); return -1; } /* (Pre-)master secrets calculations }}} */ #ifdef HAVE_LIBGNUTLS /* Decrypt RSA pre-master secret using RSA private key. {{{ */ static gboolean ssl_decrypt_pre_master_secret(SslDecryptSession*ssl_session, StringInfo* encrypted_pre_master, gcry_sexp_t pk) { gint i; if (!encrypted_pre_master) return FALSE; if (KEX_IS_DH(ssl_session->cipher_suite.kex)) { ssl_debug_printf("%s: session uses Diffie-Hellman key exchange " "(cipher suite 0x%04X %s) and cannot be decrypted " "using a RSA private key file.\n", G_STRFUNC, ssl_session->session.cipher, val_to_str_ext_const(ssl_session->session.cipher, &ssl_31_ciphersuite_ext, "unknown")); return FALSE; } else if(ssl_session->cipher_suite.kex != KEX_RSA) { ssl_debug_printf("%s key exchange %d different from KEX_RSA (%d)\n", G_STRFUNC, ssl_session->cipher_suite.kex, KEX_RSA); return FALSE; } /* with tls key loading will fail if not rsa type, so no need to check*/ ssl_print_string("pre master encrypted",encrypted_pre_master); ssl_debug_printf("%s: RSA_private_decrypt\n", G_STRFUNC); i=ssl_private_decrypt(encrypted_pre_master->data_len, encrypted_pre_master->data, pk); if (i!=48) { ssl_debug_printf("%s wrong pre_master_secret length (%d, expected " "%d)\n", G_STRFUNC, i, 48); return FALSE; } /* the decrypted data has been written into the pre_master key buffer */ ssl_session->pre_master_secret.data = encrypted_pre_master->data; ssl_session->pre_master_secret.data_len=48; ssl_print_string("pre master secret",&ssl_session->pre_master_secret); /* Remove the master secret if it was there. This forces keying material regeneration in case we're renegotiating */ ssl_session->state &= ~(SSL_MASTER_SECRET|SSL_HAVE_SESSION_KEY); ssl_session->state |= SSL_PRE_MASTER_SECRET; return TRUE; } /* }}} */ #endif /* HAVE_LIBGNUTLS */ /* Decryption integrity check {{{ */ /* convert network byte order 32 byte number to right-aligned host byte order * * 8 bytes buffer */ static gint fmt_seq(guint32 num, guint8* buf) { guint32 netnum; memset(buf,0,8); netnum=g_htonl(num); memcpy(buf+4,&netnum,4); return(0); } static gint tls_check_mac(SslDecoder*decoder, gint ct, gint ver, guint8* data, guint32 datalen, guint8* mac) { SSL_HMAC hm; gint md; guint32 len; guint8 buf[DIGEST_MAX_SIZE]; gint16 temp; md=ssl_get_digest_by_name(ssl_cipher_suite_dig(decoder->cipher_suite)->name); ssl_debug_printf("tls_check_mac mac type:%s md %d\n", ssl_cipher_suite_dig(decoder->cipher_suite)->name, md); if (ssl_hmac_init(&hm,decoder->mac_key.data,decoder->mac_key.data_len,md) != 0) return -1; /* hash sequence number */ fmt_seq(decoder->seq,buf); decoder->seq++; ssl_hmac_update(&hm,buf,8); /* hash content type */ buf[0]=ct; ssl_hmac_update(&hm,buf,1); /* hash version,data length and data*/ /* *((gint16*)buf) = g_htons(ver); */ temp = g_htons(ver); memcpy(buf, &temp, 2); ssl_hmac_update(&hm,buf,2); /* *((gint16*)buf) = g_htons(datalen); */ temp = g_htons(datalen); memcpy(buf, &temp, 2); ssl_hmac_update(&hm,buf,2); ssl_hmac_update(&hm,data,datalen); /* get digest and digest len*/ len = sizeof(buf); ssl_hmac_final(&hm,buf,&len); ssl_hmac_cleanup(&hm); ssl_print_data("Mac", buf, len); if(memcmp(mac,buf,len)) return -1; return 0; } static int ssl3_check_mac(SslDecoder*decoder,int ct,guint8* data, guint32 datalen, guint8* mac) { SSL_MD mc; gint md; guint32 len; guint8 buf[64],dgst[20]; gint pad_ct; gint16 temp; pad_ct=(decoder->cipher_suite->dig==DIG_SHA)?40:48; /* get cipher used for digest comptuation */ md=ssl_get_digest_by_name(ssl_cipher_suite_dig(decoder->cipher_suite)->name); if (ssl_md_init(&mc,md) !=0) return -1; /* do hash computation on data && padding */ ssl_md_update(&mc,decoder->mac_key.data,decoder->mac_key.data_len); /* hash padding*/ memset(buf,0x36,pad_ct); ssl_md_update(&mc,buf,pad_ct); /* hash sequence number */ fmt_seq(decoder->seq,buf); decoder->seq++; ssl_md_update(&mc,buf,8); /* hash content type */ buf[0]=ct; ssl_md_update(&mc,buf,1); /* hash data length in network byte order and data*/ /* *((gint16* )buf) = g_htons(datalen); */ temp = g_htons(datalen); memcpy(buf, &temp, 2); ssl_md_update(&mc,buf,2); ssl_md_update(&mc,data,datalen); /* get partial digest */ ssl_md_final(&mc,dgst,&len); ssl_md_cleanup(&mc); ssl_md_init(&mc,md); /* hash mac key */ ssl_md_update(&mc,decoder->mac_key.data,decoder->mac_key.data_len); /* hash padding and partial digest*/ memset(buf,0x5c,pad_ct); ssl_md_update(&mc,buf,pad_ct); ssl_md_update(&mc,dgst,len); ssl_md_final(&mc,dgst,&len); ssl_md_cleanup(&mc); if(memcmp(mac,dgst,len)) return -1; return(0); } static gint dtls_check_mac(SslDecoder*decoder, gint ct,int ver, guint8* data, guint32 datalen, guint8* mac) { SSL_HMAC hm; gint md; guint32 len; guint8 buf[DIGEST_MAX_SIZE]; gint16 temp; md=ssl_get_digest_by_name(ssl_cipher_suite_dig(decoder->cipher_suite)->name); ssl_debug_printf("dtls_check_mac mac type:%s md %d\n", ssl_cipher_suite_dig(decoder->cipher_suite)->name, md); if (ssl_hmac_init(&hm,decoder->mac_key.data,decoder->mac_key.data_len,md) != 0) return -1; ssl_debug_printf("dtls_check_mac seq: %d epoch: %d\n",decoder->seq,decoder->epoch); /* hash sequence number */ fmt_seq(decoder->seq,buf); buf[0]=decoder->epoch>>8; buf[1]=(guint8)decoder->epoch; ssl_hmac_update(&hm,buf,8); /* hash content type */ buf[0]=ct; ssl_hmac_update(&hm,buf,1); /* hash version,data length and data */ temp = g_htons(ver); memcpy(buf, &temp, 2); ssl_hmac_update(&hm,buf,2); temp = g_htons(datalen); memcpy(buf, &temp, 2); ssl_hmac_update(&hm,buf,2); ssl_hmac_update(&hm,data,datalen); /* get digest and digest len */ len = sizeof(buf); ssl_hmac_final(&hm,buf,&len); ssl_hmac_cleanup(&hm); ssl_print_data("Mac", buf, len); if(memcmp(mac,buf,len)) return -1; return(0); } /* Decryption integrity check }}} */ /* Record decryption glue based on security parameters {{{ */ int ssl_decrypt_record(SslDecryptSession*ssl,SslDecoder* decoder, gint ct, const guchar* in, guint inl, StringInfo* comp_str, StringInfo* out_str, guint* outl) { guint pad, worklen, uncomplen; guint8 *mac; ssl_debug_printf("ssl_decrypt_record ciphertext len %d\n", inl); ssl_print_data("Ciphertext",in, inl); /* ensure we have enough storage space for decrypted data */ if (inl > out_str->data_len) { ssl_debug_printf("ssl_decrypt_record: allocating %d bytes for decrypt data (old len %d)\n", inl + 32, out_str->data_len); ssl_data_realloc(out_str, inl + 32); } /* RFC 6101/2246: SSLCipherText/TLSCipherText has two structures for types: * (notation: { unencrypted, [ encrypted ] }) * GenericStreamCipher: { [content, mac] } * GenericBlockCipher: { IV (TLS 1.1+), [content, mac, padding, padding_len] } * RFC 5426 (TLS 1.2): TLSCipherText has additionally: * GenericAEADCipher: { nonce_explicit, [content] } * RFC 4347 (DTLS): based on TLS 1.1, only GenericBlockCipher is supported. * RFC 6347 (DTLS 1.2): based on TLS 1.2, includes GenericAEADCipher too. */ /* (TLS 1.1 and later, DTLS) Extract explicit IV for GenericBlockCipher */ if (decoder->cipher_suite->mode == MODE_CBC) { switch (ssl->session.version) { case TLSV1DOT1_VERSION: case TLSV1DOT2_VERSION: case DTLSV1DOT0_VERSION: case DTLSV1DOT2_VERSION: case DTLSV1DOT0_OPENSSL_VERSION: if ((gint)inl < decoder->cipher_suite->block) { ssl_debug_printf("ssl_decrypt_record failed: input %d has no space for IV %d\n", inl, decoder->cipher_suite->block); return -1; } pad = gcry_cipher_setiv(decoder->evp, in, decoder->cipher_suite->block); if (pad != 0) { ssl_debug_printf("ssl_decrypt_record failed: failed to set IV: %s %s\n", gcry_strsource (pad), gcry_strerror (pad)); } inl -= decoder->cipher_suite->block; in += decoder->cipher_suite->block; break; } } /* Nonce for GenericAEADCipher */ if (decoder->cipher_suite->mode == MODE_GCM || decoder->cipher_suite->mode == MODE_CCM || decoder->cipher_suite->mode == MODE_CCM_8) { /* 4 bytes write_iv, 8 bytes explicit_nonce, 4 bytes counter */ guchar gcm_nonce[16] = { 0 }; if ((gint)inl < SSL_EX_NONCE_LEN_GCM) { ssl_debug_printf("ssl_decrypt_record failed: input %d has no space for nonce %d\n", inl, SSL_EX_NONCE_LEN_GCM); return -1; } if (decoder->cipher_suite->mode == MODE_GCM) { memcpy(gcm_nonce, decoder->write_iv.data, decoder->write_iv.data_len); /* salt */ memcpy(gcm_nonce + decoder->write_iv.data_len, in, SSL_EX_NONCE_LEN_GCM); /* NIST SP 800-38D, sect. 7.2 says that the 32-bit counter part starts * at 1, and gets incremented before passing to the block cipher. */ gcm_nonce[4 + SSL_EX_NONCE_LEN_GCM + 3] = 2; } else { /* MODE_CCM and MODE_CCM_8 */ /* The nonce for CCM and GCM are the same, but the nonce is used as input * in the CCM algorithm described in RFC 3610. The nonce generated here is * the one from RFC 3610 sect 2.3. Encryption. */ /* Flags: (L-1) ; L = 16 - 1 - nonceSize */ gcm_nonce[0] = 3 - 1; memcpy(gcm_nonce + 1, decoder->write_iv.data, decoder->write_iv.data_len); /* salt */ memcpy(gcm_nonce + 1 + decoder->write_iv.data_len, in, SSL_EX_NONCE_LEN_GCM); gcm_nonce[4 + SSL_EX_NONCE_LEN_GCM + 3] = 1; } pad = gcry_cipher_setctr (decoder->evp, gcm_nonce, sizeof (gcm_nonce)); if (pad != 0) { ssl_debug_printf("ssl_decrypt_record failed: failed to set CTR: %s %s\n", gcry_strsource (pad), gcry_strerror (pad)); return -1; } inl -= SSL_EX_NONCE_LEN_GCM; in += SSL_EX_NONCE_LEN_GCM; } /* First decrypt*/ if ((pad = ssl_cipher_decrypt(&decoder->evp, out_str->data, out_str->data_len, in, inl))!= 0) { ssl_debug_printf("ssl_decrypt_record failed: ssl_cipher_decrypt: %s %s\n", gcry_strsource (pad), gcry_strerror (pad)); return -1; } ssl_print_data("Plaintext", out_str->data, inl); worklen=inl; /* RFC 5116 sect 5.1/5.3: AES128/256 GCM/CCM uses 16 bytes for auth tag * RFC 6655 sect 6.1: AEAD_AES_128_CCM uses 16 bytes for auth tag */ if (decoder->cipher_suite->mode == MODE_GCM || decoder->cipher_suite->mode == MODE_CCM) { if (worklen < 16) { ssl_debug_printf("ssl_decrypt_record failed: missing tag, work %d\n", worklen); return -1; } /* XXX - validate auth tag */ worklen -= 16; } /* RFC 6655 sect 6.1: AEAD_AES_128_CCM_8 uses 8 bytes for auth tag */ if (decoder->cipher_suite->mode == MODE_CCM_8) { if (worklen < 8) { ssl_debug_printf("ssl_decrypt_record failed: missing tag, work %d\n", worklen); return -1; } /* XXX - validate auth tag */ worklen -= 8; } /* strip padding for GenericBlockCipher */ if (decoder->cipher_suite->mode == MODE_CBC) { if (inl < 1) { /* Should this check happen earlier? */ ssl_debug_printf("ssl_decrypt_record failed: input length %d too small\n", inl); return -1; } pad=out_str->data[inl-1]; if (worklen <= pad) { ssl_debug_printf("ssl_decrypt_record failed: padding %d too large for work %d\n", pad, worklen); return -1; } worklen-=(pad+1); ssl_debug_printf("ssl_decrypt_record found padding %d final len %d\n", pad, worklen); } /* MAC for GenericStreamCipher and GenericBlockCipher */ if (decoder->cipher_suite->mode == MODE_STREAM || decoder->cipher_suite->mode == MODE_CBC) { if (ssl_cipher_suite_dig(decoder->cipher_suite)->len > (gint)worklen) { ssl_debug_printf("ssl_decrypt_record wrong record len/padding outlen %d\n work %d\n",*outl, worklen); return -1; } worklen-=ssl_cipher_suite_dig(decoder->cipher_suite)->len; mac = out_str->data + worklen; } else /* if (decoder->cipher_suite->mode == MODE_GCM) */ { /* GenericAEADCipher has no MAC */ goto skip_mac; } /* Now check the MAC */ ssl_debug_printf("checking mac (len %d, version %X, ct %d seq %d)\n", worklen, ssl->session.version, ct, decoder->seq); if(ssl->session.version==SSLV3_VERSION){ if(ssl3_check_mac(decoder,ct,out_str->data,worklen,mac) < 0) { if(ssl_ignore_mac_failed) { ssl_debug_printf("ssl_decrypt_record: mac failed, but ignored for troubleshooting ;-)\n"); } else{ ssl_debug_printf("ssl_decrypt_record: mac failed\n"); return -1; } } else{ ssl_debug_printf("ssl_decrypt_record: mac ok\n"); } } else if(ssl->session.version==TLSV1_VERSION || ssl->session.version==TLSV1DOT1_VERSION || ssl->session.version==TLSV1DOT2_VERSION){ if(tls_check_mac(decoder,ct,ssl->session.version,out_str->data,worklen,mac)< 0) { if(ssl_ignore_mac_failed) { ssl_debug_printf("ssl_decrypt_record: mac failed, but ignored for troubleshooting ;-)\n"); } else{ ssl_debug_printf("ssl_decrypt_record: mac failed\n"); return -1; } } else{ ssl_debug_printf("ssl_decrypt_record: mac ok\n"); } } else if(ssl->session.version==DTLSV1DOT0_VERSION || ssl->session.version==DTLSV1DOT2_VERSION || ssl->session.version==DTLSV1DOT0_OPENSSL_VERSION){ /* Try rfc-compliant mac first, and if failed, try old openssl's non-rfc-compliant mac */ if(dtls_check_mac(decoder,ct,ssl->session.version,out_str->data,worklen,mac)>= 0) { ssl_debug_printf("ssl_decrypt_record: mac ok\n"); } else if(tls_check_mac(decoder,ct,TLSV1_VERSION,out_str->data,worklen,mac)>= 0) { ssl_debug_printf("ssl_decrypt_record: dtls rfc-compliant mac failed, but old openssl's non-rfc-compliant mac ok\n"); } else if(ssl_ignore_mac_failed) { ssl_debug_printf("ssl_decrypt_record: mac failed, but ignored for troubleshooting ;-)\n"); } else{ ssl_debug_printf("ssl_decrypt_record: mac failed\n"); return -1; } } skip_mac: *outl = worklen; if (decoder->compression > 0) { ssl_debug_printf("ssl_decrypt_record: compression method %d\n", decoder->compression); ssl_data_copy(comp_str, out_str); ssl_print_data("Plaintext compressed", comp_str->data, worklen); if (!decoder->decomp) { ssl_debug_printf("decrypt_ssl3_record: no decoder available\n"); return -1; } if (ssl_decompress_record(decoder->decomp, comp_str->data, worklen, out_str, &uncomplen) < 0) return -1; ssl_print_data("Plaintext uncompressed", out_str->data, uncomplen); *outl = uncomplen; } return 0; } /* Record decryption glue based on security parameters }}} */ #endif /* HAVE_LIBGCRYPT */ #if defined(HAVE_LIBGNUTLS) && defined(HAVE_LIBGCRYPT) /* RSA private key file processing {{{ */ #define RSA_PARS 6 static gcry_sexp_t ssl_privkey_to_sexp(gnutls_x509_privkey_t priv_key) { gnutls_datum_t rsa_datum[RSA_PARS]; /* m, e, d, p, q, u */ size_t tmp_size; gcry_error_t gret; gcry_sexp_t rsa_priv_key = NULL; gint i; gcry_mpi_t rsa_params[RSA_PARS]; /* RSA get parameter */ if (gnutls_x509_privkey_export_rsa_raw(priv_key, &rsa_datum[0], &rsa_datum[1], &rsa_datum[2], &rsa_datum[3], &rsa_datum[4], &rsa_datum[5]) != 0) { ssl_debug_printf("ssl_load_key: can't export rsa param (is a rsa private key file ?!?)\n"); return NULL; } /* convert each rsa parameter to mpi format*/ for(i=0; i 0) { ssl_debug_printf("ssl_load_key: swapping p and q parameters and recomputing u\n"); /* p, q = q, p */ gcry_mpi_swap(rsa_params[3], rsa_params[4]); /* due to swapping p and q, u = p^-1 mod p which happens to be needed. */ } /* libgcrypt expects u = p^-1 mod q (for OpenPGP), but the u parameter * says u = q^-1 mod p. Recompute u = p^-1 mod q. Do this unconditionally as * at least GnuTLS 2.12.23 computes an invalid value. */ gcry_mpi_invm(rsa_params[5], rsa_params[3], rsa_params[4]); if (gcry_sexp_build( &rsa_priv_key, NULL, "(private-key(rsa((n%m)(e%m)(d%m)(p%m)(q%m)(u%m))))", rsa_params[0], rsa_params[1], rsa_params[2], rsa_params[3], rsa_params[4], rsa_params[5]) != 0) { ssl_debug_printf("ssl_load_key: can't build rsa private key s-exp\n"); return NULL; } for (i=0; i< 6; i++) gcry_mpi_release(rsa_params[i]); return rsa_priv_key; } /** Load an RSA private key from specified file @param fp the file that contain the key data @return a pointer to the loaded key on success, or NULL */ static gnutls_x509_privkey_t ssl_load_key(FILE* fp) { /* gnutls makes our work much harder, since we have to work internally with * s-exp formatted data, but PEM loader exports only in "gnutls_datum_t" * format, and a datum -> s-exp convertion function does not exist. */ gnutls_x509_privkey_t priv_key; gnutls_datum_t key; ws_statb64 statbuf; gint ret; guint bytes; if (ws_fstat64(fileno(fp), &statbuf) == -1) { ssl_debug_printf("ssl_load_key: can't ws_fstat64 file\n"); return NULL; } if (S_ISDIR(statbuf.st_mode)) { ssl_debug_printf("ssl_load_key: file is a directory\n"); errno = EISDIR; return NULL; } if (S_ISFIFO(statbuf.st_mode)) { ssl_debug_printf("ssl_load_key: file is a named pipe\n"); errno = EINVAL; return NULL; } if (!S_ISREG(statbuf.st_mode)) { ssl_debug_printf("ssl_load_key: file is not a regular file\n"); errno = EINVAL; return NULL; } /* XXX - check for a too-big size */ /* load all file contents into a datum buffer*/ key.data = (unsigned char *)g_malloc((size_t)statbuf.st_size); key.size = (int)statbuf.st_size; bytes = (guint) fread(key.data, 1, key.size, fp); if (bytes < key.size) { ssl_debug_printf("ssl_load_key: can't read from file %d bytes, got %d\n", key.size, bytes); g_free(key.data); return NULL; } /* init private key data*/ gnutls_x509_privkey_init(&priv_key); /* import PEM data*/ if ((ret = gnutls_x509_privkey_import(priv_key, &key, GNUTLS_X509_FMT_PEM)) != GNUTLS_E_SUCCESS) { ssl_debug_printf("ssl_load_key: can't import pem data: %s\n", gnutls_strerror(ret)); g_free(key.data); return NULL; } if (gnutls_x509_privkey_get_pk_algorithm(priv_key) != GNUTLS_PK_RSA) { ssl_debug_printf("ssl_load_key: private key public key algorithm isn't RSA\n"); g_free(key.data); return NULL; } g_free(key.data); return priv_key; } static const char * BAGTYPE(gnutls_pkcs12_bag_type_t x) { switch (x) { case GNUTLS_BAG_EMPTY: return "Empty"; case GNUTLS_BAG_PKCS8_ENCRYPTED_KEY: return "PKCS#8 Encrypted key"; case GNUTLS_BAG_PKCS8_KEY: return "PKCS#8 Key"; case GNUTLS_BAG_CERTIFICATE: return "Certificate"; case GNUTLS_BAG_CRL: return "CRL"; case GNUTLS_BAG_ENCRYPTED: return "Encrypted"; case GNUTLS_BAG_UNKNOWN: return "Unknown"; default: return ""; } } /** * Load a RSA private key from a PKCS#12 file. * @param fp the file that contains the key data. * @param cert_passwd password to decrypt the PKCS#12 file. * @param[out] err error message upon failure; NULL upon success. * @return a pointer to the loaded key on success; NULL upon failure. */ static gnutls_x509_privkey_t ssl_load_pkcs12(FILE* fp, const gchar *cert_passwd, char** err) { int i, j, ret; int rest; unsigned char *p; gnutls_datum_t data; gnutls_pkcs12_bag_t bag = NULL; gnutls_pkcs12_bag_type_t bag_type; size_t len; gnutls_pkcs12_t ssl_p12 = NULL; gnutls_x509_privkey_t ssl_pkey = NULL; gnutls_x509_privkey_t priv_key = NULL; *err = NULL; rest = 4096; data.data = (unsigned char *)g_malloc(rest); data.size = rest; p = data.data; while ((len = fread(p, 1, rest, fp)) > 0) { p += len; rest -= (int) len; if (!rest) { rest = 1024; data.data = (unsigned char *)g_realloc(data.data, data.size + rest); p = data.data + data.size; data.size += rest; } } data.size -= rest; ssl_debug_printf("%d bytes read\n", data.size); if (!feof(fp)) { *err = g_strdup("Error during certificate reading."); ssl_debug_printf("%s\n", *err); g_free(data.data); return 0; } ret = gnutls_pkcs12_init(&ssl_p12); if (ret < 0) { *err = g_strdup_printf("gnutls_pkcs12_init(&st_p12) - %s", gnutls_strerror(ret)); ssl_debug_printf("%s\n", *err); g_free(data.data); return 0; } /* load PKCS#12 in DER or PEM format */ ret = gnutls_pkcs12_import(ssl_p12, &data, GNUTLS_X509_FMT_DER, 0); if (ret < 0) { *err = g_strdup_printf("could not load PKCS#12 in DER format: %s", gnutls_strerror(ret)); ssl_debug_printf("%s\n", *err); g_free(*err); ret = gnutls_pkcs12_import(ssl_p12, &data, GNUTLS_X509_FMT_PEM, 0); if (ret < 0) { *err = g_strdup_printf("could not load PKCS#12 in PEM format: %s", gnutls_strerror(ret)); ssl_debug_printf("%s\n", *err); } else { *err = NULL; } } g_free(data.data); if (ret < 0) { return 0; } ssl_debug_printf( "PKCS#12 imported\n"); /* TODO: Use gnutls_pkcs12_simple_parse, since 3.1.0 (August 2012) */ for (i=0; ; i++) { ret = gnutls_pkcs12_bag_init(&bag); if (ret < 0) break; ret = gnutls_pkcs12_get_bag(ssl_p12, i, bag); if (ret < 0) break; for (j=0; j= GNUTLS_BAG_UNKNOWN) goto done; ssl_debug_printf( "Bag %d/%d: %s\n", i, j, BAGTYPE(bag_type)); if (bag_type == GNUTLS_BAG_ENCRYPTED) { ret = gnutls_pkcs12_bag_decrypt(bag, cert_passwd); if (ret == 0) { bag_type = gnutls_pkcs12_bag_get_type(bag, j); if (bag_type >= GNUTLS_BAG_UNKNOWN) goto done; ssl_debug_printf( "Bag %d/%d decrypted: %s\n", i, j, BAGTYPE(bag_type)); } } ret = gnutls_pkcs12_bag_get_data(bag, j, &data); if (ret < 0) goto done; switch (bag_type) { case GNUTLS_BAG_PKCS8_KEY: case GNUTLS_BAG_PKCS8_ENCRYPTED_KEY: ret = gnutls_x509_privkey_init(&ssl_pkey); if (ret < 0) { *err = g_strdup_printf("gnutls_x509_privkey_init(&ssl_pkey) - %s", gnutls_strerror(ret)); ssl_debug_printf("%s\n", *err); goto done; } ret = gnutls_x509_privkey_import_pkcs8(ssl_pkey, &data, GNUTLS_X509_FMT_DER, cert_passwd, (bag_type==GNUTLS_BAG_PKCS8_KEY) ? GNUTLS_PKCS_PLAIN : 0); if (ret < 0) { *err = g_strdup_printf("Can not decrypt private key - %s", gnutls_strerror(ret)); ssl_debug_printf("%s\n", *err); goto done; } if (gnutls_x509_privkey_get_pk_algorithm(ssl_pkey) != GNUTLS_PK_RSA) { *err = g_strdup("ssl_load_pkcs12: private key public key algorithm isn't RSA"); ssl_debug_printf("%s\n", *err); goto done; } /* Private key found, return it. */ priv_key = ssl_pkey; goto done; break; default: ; } } /* j */ if (bag) { gnutls_pkcs12_bag_deinit(bag); bag = NULL; } } /* i */ done: if (!priv_key && ssl_pkey) gnutls_x509_privkey_deinit(ssl_pkey); if (bag) gnutls_pkcs12_bag_deinit(bag); return priv_key; } void ssl_private_key_free(gpointer key) { gcry_sexp_release((gcry_sexp_t) key); } static void ssl_find_private_key_by_pubkey(SslDecryptSession *ssl, GHashTable *key_hash, gnutls_datum_t *subjectPublicKeyInfo) { gnutls_pubkey_t pubkey = NULL; guchar key_id[20]; size_t key_id_len = sizeof(key_id); int r; if (!subjectPublicKeyInfo->size) { ssl_debug_printf("%s: could not find SubjectPublicKeyInfo\n", G_STRFUNC); return; } r = gnutls_pubkey_init(&pubkey); if (r < 0) { ssl_debug_printf("%s: failed to init pubkey: %s\n", G_STRFUNC, gnutls_strerror(r)); return; } r = gnutls_pubkey_import(pubkey, subjectPublicKeyInfo, GNUTLS_X509_FMT_DER); if (r < 0) { ssl_debug_printf("%s: failed to import pubkey from handshake: %s\n", G_STRFUNC, gnutls_strerror(r)); goto end; } /* Generate a 20-byte SHA-1 hash. */ r = gnutls_pubkey_get_key_id(pubkey, 0, key_id, &key_id_len); if (r < 0) { ssl_debug_printf("%s: failed to extract key id from pubkey: %s\n", G_STRFUNC, gnutls_strerror(r)); goto end; } ssl_print_data("lookup(KeyID)", key_id, key_id_len); ssl->private_key = (gcry_sexp_t)g_hash_table_lookup(key_hash, key_id); ssl_debug_printf("%s: lookup result: %p\n", G_STRFUNC, (void *) ssl->private_key); end: gnutls_pubkey_deinit(pubkey); } /* RSA private key file processing }}} */ #else /* ! (defined(HAVE_LIBGNUTLS) && defined(HAVE_LIBGCRYPT)) */ void ssl_private_key_free(gpointer key _U_) { } #endif /* ! (defined(HAVE_LIBGNUTLS) && defined(HAVE_LIBGCRYPT)) */ /*--- Start of dissector-related code below ---*/ /* get ssl data for this session. if no ssl data is found allocate a new one*/ SslDecryptSession * ssl_get_session(conversation_t *conversation, dissector_handle_t ssl_handle) { void *conv_data; SslDecryptSession *ssl_session; int proto_ssl; proto_ssl = dissector_handle_get_protocol_index(ssl_handle); conv_data = conversation_get_proto_data(conversation, proto_ssl); if (conv_data != NULL) return (SslDecryptSession *)conv_data; /* no previous SSL conversation info, initialize it. */ ssl_session = wmem_new0(wmem_file_scope(), SslDecryptSession); /* data_len is the part that is meaningful, not the allocated length */ ssl_session->master_secret.data_len = 0; ssl_session->master_secret.data = ssl_session->_master_secret; ssl_session->session_id.data_len = 0; ssl_session->session_id.data = ssl_session->_session_id; ssl_session->client_random.data_len = 0; ssl_session->client_random.data = ssl_session->_client_random; ssl_session->server_random.data_len = 0; ssl_session->server_random.data = ssl_session->_server_random; ssl_session->session_ticket.data_len = 0; ssl_session->session_ticket.data = NULL; /* will be re-alloced as needed */ ssl_session->server_data_for_iv.data_len = 0; ssl_session->server_data_for_iv.data = ssl_session->_server_data_for_iv; ssl_session->client_data_for_iv.data_len = 0; ssl_session->client_data_for_iv.data = ssl_session->_client_data_for_iv; ssl_session->app_data_segment.data = NULL; ssl_session->app_data_segment.data_len = 0; ssl_session->handshake_data.data=NULL; ssl_session->handshake_data.data_len=0; /* Initialize parameters which are not necessary specific to decryption. */ ssl_session->session.version = SSL_VER_UNKNOWN; set_address(&ssl_session->session.srv_addr, AT_NONE, 0, NULL); ssl_session->session.srv_ptype = PT_NONE; ssl_session->session.srv_port = 0; conversation_add_proto_data(conversation, proto_ssl, ssl_session); return ssl_session; } /* ssl_starttls_ack: mark future frames as encrypted. {{{ */ guint32 ssl_starttls_ack(dissector_handle_t ssl_handle, packet_info *pinfo, dissector_handle_t app_handle) { conversation_t *conversation; SslSession *session; /* Ignore if the SSL dissector is disabled. */ if (!ssl_handle) return 0; /* The caller should always pass a valid handle to its own dissector. */ DISSECTOR_ASSERT(app_handle); conversation = find_or_create_conversation(pinfo); session = &ssl_get_session(conversation, ssl_handle)->session; ssl_debug_printf("%s: old frame %d, app_handle=%p (%s)\n", G_STRFUNC, session->last_nontls_frame, (void *)session->app_handle, dissector_handle_get_dissector_name(session->app_handle)); ssl_debug_printf("%s: current frame %d, app_handle=%p (%s)\n", G_STRFUNC, pinfo->fd->num, (void *)app_handle, dissector_handle_get_dissector_name(app_handle)); /* Do not switch again if a dissector did it before. */ if (session->last_nontls_frame) { ssl_debug_printf("%s: not overriding previous app handle!\n", G_STRFUNC); return session->last_nontls_frame; } session->app_handle = app_handle; /* The SSL dissector should be called first for this conversation. */ conversation_set_dissector(conversation, ssl_handle); /* SSL starts after this frame. */ session->last_nontls_frame = pinfo->fd->num; return 0; } /* }}} */ /* Functions for TLS/DTLS sessions and RSA private keys hashtables. {{{ */ static gint ssl_equal (gconstpointer v, gconstpointer v2) { const StringInfo *val1; const StringInfo *val2; val1 = (const StringInfo *)v; val2 = (const StringInfo *)v2; if (val1->data_len == val2->data_len && !memcmp(val1->data, val2->data, val2->data_len)) { return 1; } return 0; } static guint ssl_hash (gconstpointer v) { guint l,hash; const StringInfo* id; const guint* cur; hash = 0; id = (const StringInfo*) v; /* id and id->data are mallocated in ssl_save_master_key(). As such 'data' * should be aligned for any kind of access (for example as a guint as * is done below). The intermediate void* cast is to prevent "cast * increases required alignment of target type" warnings on CPUs (such * as SPARCs) that do not allow misaligned memory accesses. */ cur = (const guint*)(void*) id->data; for (l=4; (l < id->data_len); l+=4, cur++) hash = hash ^ (*cur); return hash; } gboolean ssl_private_key_equal (gconstpointer v, gconstpointer v2) { /* key ID length (SHA-1 hash, per GNUTLS_KEYID_USE_SHA1) */ return !memcmp(v, v2, 20); } guint ssl_private_key_hash (gconstpointer v) { guint l, hash = 0; const guint8 *cur = (const guint8 *)v; /* The public key' SHA-1 hash (which maps to a private key) has a uniform * distribution, hence simply xor'ing them should be sufficient. */ for (l = 0; l < 20; l += 4, cur += 4) hash ^= pntoh32(cur); return hash; } /* Functions for TLS/DTLS sessions and RSA private keys hashtables. }}} */ /* Handling of association between tls/dtls ports and clear text protocol. {{{ */ void ssl_association_add(const char* dissector_table_name, dissector_handle_t main_handle, dissector_handle_t subdissector_handle, guint port, gboolean tcp) { DISSECTOR_ASSERT(main_handle); DISSECTOR_ASSERT(subdissector_handle); ssl_debug_printf("association_add %s port %d handle %p\n", dissector_table_name, port, (void *)subdissector_handle); if (port) { dissector_add_uint(dissector_table_name, port, subdissector_handle); if (tcp) dissector_add_uint("tcp.port", port, main_handle); else dissector_add_uint("udp.port", port, main_handle); dissector_add_uint("sctp.port", port, main_handle); } else { dissector_add_for_decode_as(dissector_table_name, subdissector_handle); } } void ssl_association_remove(const char* dissector_table_name, dissector_handle_t main_handle, dissector_handle_t subdissector_handle, guint port, gboolean tcp) { ssl_debug_printf("ssl_association_remove removing %s %u - handle %p\n", tcp?"TCP":"UDP", port, (void *)subdissector_handle); if (main_handle) { dissector_delete_uint(tcp?"tcp.port":"udp.port", port, main_handle); dissector_delete_uint("sctp.port", port, main_handle); } if (port) { dissector_delete_uint(dissector_table_name, port, subdissector_handle); } } void ssl_set_server(SslSession *session, address *addr, port_type ptype, guint32 port) { copy_address_wmem(wmem_file_scope(), &session->srv_addr, addr); session->srv_ptype = ptype; session->srv_port = port; } int ssl_packet_from_server(SslSession *session, dissector_table_t table, packet_info *pinfo) { gint ret; if (session->srv_ptype != PT_NONE) { ret = (session->srv_ptype == pinfo->ptype) && (session->srv_port == pinfo->srcport) && addresses_equal(&session->srv_addr, &pinfo->src); } else { ret = (dissector_get_uint_handle(table, pinfo->srcport) != 0); } ssl_debug_printf("packet_from_server: is from server - %s\n", (ret)?"TRUE":"FALSE"); return ret; } /* Handling of association between tls/dtls ports and clear text protocol. }}} */ /* Links SSL records with the real packet data. {{{ */ /* add to packet data a copy of the specified real data */ void ssl_add_record_info(gint proto, packet_info *pinfo, guchar* data, gint data_len, gint record_id) { guchar* real_data; SslRecordInfo* rec; SslPacketInfo* pi; pi = (SslPacketInfo *)p_get_proto_data(wmem_file_scope(), pinfo, proto, 0); if (!pi) { pi = (SslPacketInfo *)wmem_alloc0(wmem_file_scope(), sizeof(SslPacketInfo)); p_add_proto_data(wmem_file_scope(), pinfo, proto, 0, pi); } real_data = (guchar *)wmem_alloc(wmem_file_scope(), data_len); memcpy(real_data, data, data_len); rec = (SslRecordInfo *)wmem_alloc(wmem_file_scope(), sizeof(SslRecordInfo)); rec->id = record_id; rec->real_data = real_data; rec->data_len = data_len; /* head insertion */ rec->next= pi->handshake_data; pi->handshake_data = rec; } /* search in packet data for the specified id; return a newly created tvb for the associated data */ tvbuff_t* ssl_get_record_info(tvbuff_t *parent_tvb, int proto, packet_info *pinfo, gint record_id) { SslRecordInfo* rec; SslPacketInfo* pi; pi = (SslPacketInfo *)p_get_proto_data(wmem_file_scope(), pinfo, proto, 0); if (!pi) return NULL; for (rec = pi->handshake_data; rec; rec = rec->next) if (rec->id == record_id) /* link new real_data_tvb with a parent tvb so it is freed when frame dissection is complete */ return tvb_new_child_real_data(parent_tvb, rec->real_data, rec->data_len, rec->data_len); return NULL; } void ssl_add_data_info(gint proto, packet_info *pinfo, guchar* data, gint data_len, gint key, SslFlow *flow) { SslDataInfo *rec, **prec; SslPacketInfo *pi; pi = (SslPacketInfo *)p_get_proto_data(wmem_file_scope(), pinfo, proto, 0); if (!pi) { pi = (SslPacketInfo *)wmem_alloc0(wmem_file_scope(), sizeof(SslPacketInfo)); p_add_proto_data(wmem_file_scope(), pinfo, proto, 0, pi); } rec = (SslDataInfo *)wmem_alloc(wmem_file_scope(), sizeof(SslDataInfo)+data_len); rec->key = key; rec->plain_data.data = (guchar*)(rec + 1); memcpy(rec->plain_data.data, data, data_len); rec->plain_data.data_len = data_len; if (flow) { rec->seq = flow->byte_seq; rec->nxtseq = flow->byte_seq + data_len; rec->flow = flow; flow->byte_seq += data_len; } rec->next = NULL; /* insertion */ prec = &pi->appl_data; while (*prec) prec = &(*prec)->next; *prec = rec; ssl_debug_printf("ssl_add_data_info: new data inserted data_len = %d, seq = %u, nxtseq = %u\n", rec->plain_data.data_len, rec->seq, rec->nxtseq); } SslDataInfo* ssl_get_data_info(int proto, packet_info *pinfo, gint key) { SslDataInfo* rec; SslPacketInfo* pi; pi = (SslPacketInfo *)p_get_proto_data(wmem_file_scope(), pinfo, proto, 0); if (!pi) return NULL; rec = pi->appl_data; while (rec) { if (rec->key == key) return rec; rec = rec->next; } return NULL; } /* Links SSL records with the real packet data. }}} */ /* initialize/reset per capture state data (ssl sessions cache). {{{ */ void ssl_common_init(ssl_master_key_map_t *mk_map, StringInfo *decrypted_data, StringInfo *compressed_data) { mk_map->session = g_hash_table_new(ssl_hash, ssl_equal); mk_map->crandom = g_hash_table_new(ssl_hash, ssl_equal); mk_map->pre_master = g_hash_table_new(ssl_hash, ssl_equal); mk_map->pms = g_hash_table_new(ssl_hash, ssl_equal); ssl_data_alloc(decrypted_data, 32); ssl_data_alloc(compressed_data, 32); } void ssl_common_cleanup(ssl_master_key_map_t *mk_map, FILE **ssl_keylog_file, StringInfo *decrypted_data, StringInfo *compressed_data) { g_hash_table_destroy(mk_map->session); g_hash_table_destroy(mk_map->crandom); g_hash_table_destroy(mk_map->pre_master); g_hash_table_destroy(mk_map->pms); g_free(decrypted_data->data); g_free(compressed_data->data); /* close the previous keylog file now that the cache are cleared, this * allows the cache to be filled with the full keylog file contents. */ if (*ssl_keylog_file) { fclose(*ssl_keylog_file); *ssl_keylog_file = NULL; } } /* }}} */ /* parse ssl related preferences (private keys and ports association strings) */ #if defined(HAVE_LIBGNUTLS) && defined(HAVE_LIBGCRYPT) /* Load a single RSA key file item from preferences. {{{ */ void ssl_parse_key_list(const ssldecrypt_assoc_t *uats, GHashTable *key_hash, const char* dissector_table_name, dissector_handle_t main_handle, gboolean tcp) { gnutls_x509_privkey_t priv_key; gcry_sexp_t private_key; FILE* fp = NULL; int ret; size_t key_id_len = 20; guchar *key_id = NULL; dissector_handle_t handle; /* try to load keys file first */ fp = ws_fopen(uats->keyfile, "rb"); if (!fp) { report_open_failure(uats->keyfile, errno, FALSE); return; } if ((gint)strlen(uats->password) == 0) { priv_key = ssl_load_key(fp); } else { char *err = NULL; priv_key = ssl_load_pkcs12(fp, uats->password, &err); if (err) { report_failure("%s\n", err); g_free(err); } } fclose(fp); if (!priv_key) { report_failure("Can't load private key from %s\n", uats->keyfile); return; } key_id = (guchar *) g_malloc0(key_id_len); ret = gnutls_x509_privkey_get_key_id(priv_key, 0, key_id, &key_id_len); if (ret < 0) { report_failure("Can't calculate public key ID for %s: %s", uats->keyfile, gnutls_strerror(ret)); goto end; } ssl_print_data("KeyID", key_id, key_id_len); private_key = ssl_privkey_to_sexp(priv_key); if (!private_key) { report_failure("Can't extract private key parameters for %s", uats->keyfile); goto end; } g_hash_table_replace(key_hash, key_id, private_key); key_id = NULL; /* used in key_hash, do not free. */ ssl_debug_printf("ssl_init private key file %s successfully loaded.\n", uats->keyfile); { /* Port to subprotocol mapping */ int port = atoi(uats->port); /* Also maps "start_tls" -> 0 (wildcard) */ ssl_debug_printf("ssl_init port '%d' filename '%s' password(only for p12 file) '%s'\n", port, uats->keyfile, uats->password); handle = find_dissector(uats->protocol); ssl_association_add(dissector_table_name, main_handle, handle, port, tcp); } end: gnutls_x509_privkey_deinit(priv_key); g_free(key_id); } /* }}} */ #else void ssl_parse_key_list(const ssldecrypt_assoc_t *uats _U_, GHashTable *key_hash _U_, const char* dissector_table_name _U_, dissector_handle_t main_handle _U_, gboolean tcp _U_) { report_failure("Can't load private key files, support is not compiled in."); } #endif #ifdef HAVE_LIBGCRYPT /* useless without decryption support. */ /* Store/load a known (pre-)master secret from/for this SSL session. {{{ */ /** store a known (pre-)master secret into cache */ static void ssl_save_master_key(const char *label, GHashTable *ht, StringInfo *key, StringInfo *mk) { StringInfo *ht_key, *master_secret; if (key->data_len == 0) { ssl_debug_printf("%s: not saving empty %s!\n", G_STRFUNC, label); return; } if (mk->data_len == 0) { ssl_debug_printf("%s not saving empty (pre-)master secret for %s!\n", G_STRFUNC, label); return; } /* ssl_hash() depends on session_ticket->data being aligned for guint access * so be careful in changing how it is allocated. */ ht_key = ssl_data_clone(key); master_secret = ssl_data_clone(mk); g_hash_table_insert(ht, ht_key, master_secret); ssl_debug_printf("%s inserted (pre-)master secret for %s\n", G_STRFUNC, label); ssl_print_string("stored key", ht_key); ssl_print_string("stored (pre-)master secret", master_secret); } /** restore a (pre-)master secret given some key in the cache */ static gboolean ssl_restore_master_key(SslDecryptSession *ssl, const char *label, gboolean is_pre_master, GHashTable *ht, StringInfo *key) { StringInfo *ms; if (key->data_len == 0) { ssl_debug_printf("%s can't restore %smaster secret using an empty %s\n", G_STRFUNC, is_pre_master ? "pre-" : "", label); return FALSE; } ms = (StringInfo *)g_hash_table_lookup(ht, key); if (!ms) { ssl_debug_printf("%s can't find %smaster secret by %s\n", G_STRFUNC, is_pre_master ? "pre-" : "", label); return FALSE; } /* (pre)master secret found, clear knowledge of other keys and set it in the * current conversation */ ssl->state &= ~(SSL_MASTER_SECRET | SSL_PRE_MASTER_SECRET | SSL_HAVE_SESSION_KEY); if (is_pre_master) { /* unlike master secret, pre-master secret has a variable size (48 for * RSA, varying for PSK) and is therefore not statically allocated */ ssl->pre_master_secret.data = (guchar *) wmem_alloc(wmem_file_scope(), ms->data_len); ssl_data_set(&ssl->pre_master_secret, ms->data, ms->data_len); ssl->state |= SSL_PRE_MASTER_SECRET; } else { ssl_data_set(&ssl->master_secret, ms->data, ms->data_len); ssl->state |= SSL_MASTER_SECRET; } ssl_debug_printf("%s %smaster secret retrieved using %s\n", G_STRFUNC, is_pre_master ? "pre-" : "", label); ssl_print_string(label, key); ssl_print_string("(pre-)master secret", ms); return TRUE; } /* Store/load a known (pre-)master secret from/for this SSL session. }}} */ /* Should be called when all parameters are ready (after ChangeCipherSpec), and * the decoder should be attempted to be initialized. {{{*/ void ssl_finalize_decryption(SslDecryptSession *ssl, ssl_master_key_map_t *mk_map) { ssl_debug_printf("%s state = 0x%02X\n", G_STRFUNC, ssl->state); if (ssl->state & SSL_HAVE_SESSION_KEY) { ssl_debug_printf(" session key already available, nothing to do.\n"); return; } /* for decryption, there needs to be a master secret (which can be derived * from pre-master secret). If missing, try to pick a master key from cache * (an earlier packet in the capture or key logfile). */ if (!(ssl->state & (SSL_MASTER_SECRET | SSL_PRE_MASTER_SECRET)) && !ssl_restore_master_key(ssl, "Session ID", FALSE, mk_map->session, &ssl->session_id) && !ssl_restore_master_key(ssl, "Session Ticket", FALSE, mk_map->session, &ssl->session_ticket) && !ssl_restore_master_key(ssl, "Client Random", FALSE, mk_map->crandom, &ssl->client_random)) { /* how unfortunate, the master secret could not be found */ ssl_debug_printf(" Cannot find master secret\n"); return; } if (ssl_generate_keyring_material(ssl) < 0) { ssl_debug_printf("%s can't generate keyring material\n", G_STRFUNC); return; } /* Save Client Random/ Session ID for "SSL Export Session keys" */ ssl_save_master_key("Client Random", mk_map->crandom, &ssl->client_random, &ssl->master_secret); ssl_save_master_key("Session ID", mk_map->session, &ssl->session_id, &ssl->master_secret); ssl_save_master_key("Session Ticket", mk_map->session, &ssl->session_ticket, &ssl->master_secret); } /* }}} */ #endif /* HAVE_LIBGCRYPT */ /** SSL keylog file handling. {{{ */ static GRegex * ssl_compile_keyfile_regex(void) { #define OCTET "(?:[[:xdigit:]]{2})" const gchar *pattern = "(?:" /* Matches Client Hellos having this Client Random */ "PMS_CLIENT_RANDOM (?" OCTET "{32}) " /* Matches first part of encrypted RSA pre-master secret */ "|RSA (?" OCTET "{8}) " /* Pre-Master-Secret is given, it is 48 bytes for RSA, but it can be of any length for DHE */ ")(?" OCTET "+)" "|(?:" /* Matches Server Hellos having a Session ID */ "RSA Session-ID:(?" OCTET "+) Master-Key:" /* Matches Client Hellos having this Client Random */ "|CLIENT_RANDOM (?" OCTET "{32}) " /* Master-Secret is given, its length is fixed */ ")(?" OCTET "{" G_STRINGIFY(SSL_MASTER_SECRET_LENGTH) "})"; #undef OCTET static GRegex *regex = NULL; GError *gerr = NULL; if (!regex) { regex = g_regex_new(pattern, (GRegexCompileFlags)(G_REGEX_OPTIMIZE | G_REGEX_ANCHORED), G_REGEX_MATCH_ANCHORED, &gerr); if (gerr) { ssl_debug_printf("%s failed to compile regex: %s\n", G_STRFUNC, gerr->message); g_error_free(gerr); regex = NULL; } } return regex; } static gboolean file_needs_reopen(FILE *fp, const char *filename) { ws_statb64 open_stat, current_stat; /* consider a file deleted when stat fails for either file, * or when the residing device / inode has changed. */ if (0 != ws_fstat64(fileno(fp), &open_stat)) return TRUE; if (0 != ws_stat64(filename, ¤t_stat)) return TRUE; /* Note: on Windows, ino may be 0. Existing files cannot be deleted on * Windows, but hopefully the size is a good indicator when a file got * removed and recreated */ return open_stat.st_dev != current_stat.st_dev || open_stat.st_ino != current_stat.st_ino || open_stat.st_size > current_stat.st_size; } typedef struct ssl_master_key_match_group { const char *re_group_name; GHashTable *master_key_ht; } ssl_master_key_match_group_t; void ssl_load_keyfile(const gchar *ssl_keylog_filename, FILE **keylog_file, const ssl_master_key_map_t *mk_map) { unsigned i; GRegex *regex; ssl_master_key_match_group_t mk_groups[] = { { "encrypted_pmk", mk_map->pre_master }, { "session_id", mk_map->session }, { "client_random", mk_map->crandom }, { "client_random_pms", mk_map->pms}, }; /* no need to try if no key log file is configured. */ if (!ssl_keylog_filename || !*ssl_keylog_filename) { ssl_debug_printf("%s dtls/ssl.keylog_file is not configured!\n", G_STRFUNC); return; } /* The format of the file is a series of records with one of the following formats: * - "RSA xxxx yyyy" * Where xxxx are the first 8 bytes of the encrypted pre-master secret (hex-encoded) * Where yyyy is the cleartext pre-master secret (hex-encoded) * (this is the original format introduced with bug 4349) * * - "RSA Session-ID:xxxx Master-Key:yyyy" * Where xxxx is the SSL session ID (hex-encoded) * Where yyyy is the cleartext master secret (hex-encoded) * (added to support openssl s_client Master-Key output) * This is somewhat is a misnomer because there's nothing RSA specific * about this. * * - "PMS_CLIENT_RANDOM xxxx yyyy" * Where xxxx is the client_random from the ClientHello (hex-encoded) * Where yyyy is the cleartext pre-master secret (hex-encoded) * (This format allows SSL connections to be decrypted, if a user can * capture the PMS but could not recover the MS for a specific session * with a SSL Server.) * * - "CLIENT_RANDOM xxxx yyyy" * Where xxxx is the client_random from the ClientHello (hex-encoded) * Where yyyy is the cleartext master secret (hex-encoded) * (This format allows non-RSA SSL connections to be decrypted, i.e. * ECDHE-RSA.) */ regex = ssl_compile_keyfile_regex(); if (!regex) return; ssl_debug_printf("trying to use SSL keylog in %s\n", ssl_keylog_filename); /* if the keylog file was deleted, re-open it */ if (*keylog_file && file_needs_reopen(*keylog_file, ssl_keylog_filename)) { ssl_debug_printf("%s file got deleted, trying to re-open\n", G_STRFUNC); fclose(*keylog_file); *keylog_file = NULL; } if (*keylog_file == NULL) { *keylog_file = ws_fopen(ssl_keylog_filename, "r"); if (!*keylog_file) { ssl_debug_printf("%s failed to open SSL keylog\n", G_STRFUNC); return; } } for (;;) { char buf[512], *line; gsize bytes_read; GMatchInfo *mi; line = fgets(buf, sizeof(buf), *keylog_file); if (!line) break; bytes_read = strlen(line); /* fgets includes the \n at the end of the line. */ if (bytes_read > 0 && line[bytes_read - 1] == '\n') { line[bytes_read - 1] = 0; bytes_read--; } if (bytes_read > 0 && line[bytes_read - 1] == '\r') { line[bytes_read - 1] = 0; bytes_read--; } ssl_debug_printf(" checking keylog line: %s\n", line); if (g_regex_match(regex, line, G_REGEX_MATCH_ANCHORED, &mi)) { gchar *hex_key, *hex_pre_ms_or_ms; StringInfo *key = wmem_new(wmem_file_scope(), StringInfo); StringInfo *pre_ms_or_ms = NULL; GHashTable *ht = NULL; /* Is the PMS being supplied with the PMS_CLIENT_RANDOM * otherwise we will use the Master Secret */ hex_pre_ms_or_ms = g_match_info_fetch_named(mi, "master_secret"); if (hex_pre_ms_or_ms == NULL || strlen(hex_pre_ms_or_ms) == 0){ g_free(hex_pre_ms_or_ms); hex_pre_ms_or_ms = g_match_info_fetch_named(mi, "pms"); } /* There is always a match, otherwise the regex is wrong. */ DISSECTOR_ASSERT(hex_pre_ms_or_ms && strlen(hex_pre_ms_or_ms)); /* convert from hex to bytes and save to hashtable */ pre_ms_or_ms = wmem_new(wmem_file_scope(), StringInfo); from_hex(pre_ms_or_ms, hex_pre_ms_or_ms, strlen(hex_pre_ms_or_ms)); g_free(hex_pre_ms_or_ms); /* Find a master key from any format (CLIENT_RANDOM, SID, ...) */ for (i = 0; i < G_N_ELEMENTS(mk_groups); i++) { ssl_master_key_match_group_t *g = &mk_groups[i]; hex_key = g_match_info_fetch_named(mi, g->re_group_name); if (hex_key && *hex_key) { ssl_debug_printf(" matched %s\n", g->re_group_name); ht = g->master_key_ht; from_hex(key, hex_key, strlen(hex_key)); g_free(hex_key); break; } g_free(hex_key); } DISSECTOR_ASSERT(ht); /* Cannot be reached, or regex is wrong. */ g_hash_table_insert(ht, key, pre_ms_or_ms); } else { ssl_debug_printf(" unrecognized line\n"); } /* always free match info even if there is no match. */ g_match_info_free(mi); } } /** SSL keylog file handling. }}} */ #ifdef SSL_DECRYPT_DEBUG /* {{{ */ static FILE* ssl_debug_file=NULL; void ssl_set_debug(const gchar* name) { static gint debug_file_must_be_closed; gint use_stderr; debug_file_must_be_closed = 0; use_stderr = name?(strcmp(name, SSL_DEBUG_USE_STDERR) == 0):0; if (debug_file_must_be_closed) fclose(ssl_debug_file); if (use_stderr) ssl_debug_file = stderr; else if (!name || (strcmp(name, "") ==0)) ssl_debug_file = NULL; else ssl_debug_file = ws_fopen(name, "w"); if (!use_stderr && ssl_debug_file) debug_file_must_be_closed = 1; ssl_debug_printf("Wireshark SSL debug log \n\n"); ssl_debug_printf("Wireshark version: %s\n", get_ws_vcs_version_info()); #ifdef HAVE_LIBGNUTLS ssl_debug_printf("GnuTLS version: %s\n", gnutls_check_version(NULL)); #endif #ifdef HAVE_LIBGCRYPT ssl_debug_printf("Libgcrypt version: %s\n", gcry_check_version(NULL)); #endif ssl_debug_printf("\n"); } void ssl_debug_flush(void) { if (ssl_debug_file) fflush(ssl_debug_file); } void ssl_debug_printf(const gchar* fmt, ...) { va_list ap; if (!ssl_debug_file) return; va_start(ap, fmt); vfprintf(ssl_debug_file, fmt, ap); va_end(ap); } void ssl_print_data(const gchar* name, const guchar* data, size_t len) { size_t i, j, k; if (!ssl_debug_file) return; fprintf(ssl_debug_file,"%s[%d]:\n",name, (int) len); for (i=0; idata, data->data_len); } #endif /* SSL_DECRYPT_DEBUG }}} */ /* UAT preferences callbacks. {{{ */ /* checks for SSL and DTLS UAT key list fields */ gboolean ssldecrypt_uat_fld_ip_chk_cb(void* r _U_, const char* p, guint len _U_, const void* u1 _U_, const void* u2 _U_, char** err) { if (!p || strlen(p) == 0u) { *err = g_strdup_printf("No IP address given."); return FALSE; } *err = NULL; return TRUE; } gboolean ssldecrypt_uat_fld_port_chk_cb(void* r _U_, const char* p, guint len _U_, const void* u1 _U_, const void* u2 _U_, char** err) { if (!p || strlen(p) == 0u) { *err = g_strdup_printf("No Port given."); return FALSE; } if (strcmp(p, "start_tls") != 0){ const gint i = atoi(p); if (i < 0 || i > 65535) { *err = g_strdup_printf("Invalid port given."); return FALSE; } } *err = NULL; return TRUE; } gboolean ssldecrypt_uat_fld_fileopen_chk_cb(void* r _U_, const char* p, guint len _U_, const void* u1 _U_, const void* u2 _U_, char** err) { ws_statb64 st; if (!p || strlen(p) == 0u) { *err = g_strdup_printf("No filename given."); return FALSE; } else { if (ws_stat64(p, &st) != 0) { *err = g_strdup_printf("File '%s' does not exist or access is denied.", p); return FALSE; } } *err = NULL; return TRUE; } gboolean ssldecrypt_uat_fld_password_chk_cb(void *r _U_, const char *p _U_, guint len _U_, const void *u1 _U_, const void *u2 _U_, char **err) { #if defined(HAVE_LIBGNUTLS) && defined(HAVE_LIBGCRYPT) ssldecrypt_assoc_t* f = (ssldecrypt_assoc_t *)r; FILE *fp = NULL; if (p && (strlen(p) > 0u)) { fp = ws_fopen(f->keyfile, "rb"); if (fp) { char *msg = NULL; gnutls_x509_privkey_t priv_key = ssl_load_pkcs12(fp, p, &msg); if (!priv_key) { fclose(fp); *err = g_strdup_printf("Could not load PKCS#12 key file: %s", msg); g_free(msg); return FALSE; } g_free(msg); gnutls_x509_privkey_deinit(priv_key); fclose(fp); } else { *err = g_strdup_printf("Leave this field blank if the keyfile is not PKCS#12."); return FALSE; } } *err = NULL; return TRUE; #else *err = g_strdup("Cannot load key files, support is not compiled in."); return FALSE; #endif } /* UAT preferences callbacks. }}} */ /** maximum size of ssl_association_info() string */ #define SSL_ASSOC_MAX_LEN 8192 typedef struct ssl_association_info_callback_data { gchar *str; const char *table_protocol; } ssl_association_info_callback_data_t; /** * callback function used by ssl_association_info() to traverse the SSL associations. */ static void ssl_association_info_(const gchar *table _U_, gpointer handle, gpointer user_data) { ssl_association_info_callback_data_t* data = (ssl_association_info_callback_data_t*)user_data; const int l = (const int)strlen(data->str); g_snprintf(data->str+l, SSL_ASSOC_MAX_LEN-l, "'%s' %s\n", dissector_handle_get_short_name((dissector_handle_t)handle), data->table_protocol); } /** * @return an information string on the SSL protocol associations. The string has ephemeral lifetime/scope. */ gchar* ssl_association_info(const char* dissector_table_name, const char* table_protocol) { ssl_association_info_callback_data_t data; data.str = (gchar *)g_malloc0(SSL_ASSOC_MAX_LEN); data.table_protocol = table_protocol; dissector_table_foreach_handle(dissector_table_name, ssl_association_info_, &data); return data.str; } /** Begin of code related to dissection of wire data. */ /* change_cipher_spec(20) dissection */ void ssl_dissect_change_cipher_spec(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 offset, SslSession *session, gboolean is_from_server, const SslDecryptSession *ssl) { /* * struct { * enum { change_cipher_spec(1), (255) } type; * } ChangeCipherSpec; */ proto_item *ti; proto_item_set_text(tree, "%s Record Layer: %s Protocol: Change Cipher Spec", val_to_str_const(session->version, ssl_version_short_names, "SSL"), val_to_str_const(SSL_ID_CHG_CIPHER_SPEC, ssl_31_content_type, "unknown")); ti = proto_tree_add_item(tree, hf->hf.change_cipher_spec, tvb, offset, 1, ENC_NA); /* Use heuristics to detect an abbreviated handshake, assume that missing * ServerHelloDone implies reusing previously negotiating keys. Then when * a Session ID or ticket is present, it must be a resumed session. * Normally this should be done at the Finished message, but that may be * encrypted so we do it here, at the last cleartext message. */ if (is_from_server && ssl) { if (!(ssl->state & SSL_SERVER_HELLO_DONE)) { const char *resumed = NULL; if (ssl->session_ticket.data_len) { resumed = "Session Ticket"; } else if (ssl->session_id.data_len) { resumed = "Session ID"; } if (resumed) { ssl_debug_printf("%s Session resumption using %s\n", G_STRFUNC, resumed); session->is_session_resumed = TRUE; } else { /* Can happen if the capture somehow starts in the middle */ ssl_debug_printf("%s No Session resumption, missing packets?\n", G_STRFUNC); } } else { ssl_debug_printf("%s Not using Session resumption\n", G_STRFUNC); } } if (is_from_server && session->is_session_resumed) expert_add_info(pinfo, ti, &hf->ei.resumed); } /** Begin of handshake(22) record dissections */ /* dissect a list of hash algorithms, return the number of bytes dissected this is used for the signature algorithms extension and for the TLS1.2 certificate request. {{{ */ static gint ssl_dissect_hash_alg_list(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, packet_info* pinfo, guint32 offset, guint16 len) { guint32 offset_start; proto_tree *subtree, *alg_tree; proto_item *ti; offset_start = offset; if (len==0) return 0; ti = proto_tree_add_none_format(tree, hf->hf.hs_sig_hash_algs, tvb, offset, len, "Signature Hash Algorithms (%u algorithm%s)", len / 2, plurality(len / 2, "", "s")); subtree = proto_item_add_subtree(ti, hf->ett.hs_sig_hash_algs); if (len % 2) { expert_add_info_format(pinfo, ti, &hf->ei.hs_sig_hash_algs_bad, "Invalid Signature Hash Algorithm length: %d", len); return offset-offset_start; } while (len > 0) { ti = proto_tree_add_item(subtree, hf->hf.hs_sig_hash_alg, tvb, offset, 2, ENC_BIG_ENDIAN); alg_tree = proto_item_add_subtree(ti, hf->ett.hs_sig_hash_alg); proto_tree_add_item(alg_tree, hf->hf.hs_sig_hash_hash, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(alg_tree, hf->hf.hs_sig_hash_sig, tvb, offset+1, 1, ENC_BIG_ENDIAN); offset += 2; len -= 2; } return offset-offset_start; } /* }}} */ /** TLS Extensions (in Client Hello and Server Hello). {{{ */ static gint ssl_dissect_hnd_hello_ext_sig_hash_algs(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, packet_info* pinfo, guint32 offset, guint32 ext_len) { guint16 sh_alg_length; gint ret; sh_alg_length = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(tree, hf->hf.hs_sig_hash_alg_len, tvb, offset, 2, sh_alg_length); offset += 2; if (ext_len < 2 || sh_alg_length != ext_len - 2) { /* ERROR: sh_alg_length must be 2 less than ext_len */ return offset; } ret = ssl_dissect_hash_alg_list(hf, tvb, tree, pinfo, offset, sh_alg_length); if (ret >= 0) offset += ret; return offset; } static gint ssl_dissect_hnd_hello_ext_alpn(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 ext_len, gboolean is_client, SslSession *session) { guint16 alpn_length; guint8 name_length; proto_tree *alpn_tree; proto_item *ti; alpn_length = tvb_get_ntohs(tvb, offset); if (ext_len < 2 || alpn_length != ext_len - 2) { /* ERROR: alpn_length must be 2 less than ext_len */ return offset; } proto_tree_add_item(tree, hf->hf.hs_ext_alpn_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; ti = proto_tree_add_item(tree, hf->hf.hs_ext_alpn_list, tvb, offset, alpn_length, ENC_NA); alpn_tree = proto_item_add_subtree(ti, hf->ett.hs_ext_alpn); /* If ALPN is given in ServerHello, then ProtocolNameList MUST contain * exactly one "ProtocolName". */ if (!is_client) { guint8 *proto_name; size_t i; name_length = tvb_get_guint8(tvb, offset); /* '\0'-terminated string for prefix/full string comparison purposes. */ proto_name = tvb_get_string_enc(wmem_packet_scope(), tvb, offset + 1, name_length, ENC_ASCII); for (i = 0; i < G_N_ELEMENTS(ssl_alpn_protocols); i++) { const ssl_alpn_protocol_t *alpn_proto = &ssl_alpn_protocols[i]; if (name_length >= alpn_proto->proto_name_len && (memcmp(proto_name, alpn_proto->proto_name, alpn_proto->proto_name_len) == 0)) { dissector_handle_t handle; /* ProtocolName match, so set the App data dissector handle. * This may override protocols given via the UAT dialog, but * since the ALPN hint is precise, do it anyway. */ handle = find_dissector(alpn_proto->dissector_name); ssl_debug_printf("%s: changing handle %p to %p (%s)", G_STRFUNC, (void *)session->app_handle, (void *)handle, alpn_proto->dissector_name); /* if dissector is disabled, do not overwrite previous one */ if (handle) session->app_handle = handle; break; } } } while (alpn_length > 0) { name_length = tvb_get_guint8(tvb, offset); proto_tree_add_item(alpn_tree, hf->hf.hs_ext_alpn_str_len, tvb, offset, 1, ENC_NA); offset++; alpn_length--; proto_tree_add_item(alpn_tree, hf->hf.hs_ext_alpn_str, tvb, offset, name_length, ENC_ASCII|ENC_NA); offset += name_length; alpn_length -= name_length; } return offset; } static gint ssl_dissect_hnd_hello_ext_npn(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 ext_len) { guint8 npn_length; proto_tree *npn_tree; if (ext_len == 0) { return offset; } npn_tree = proto_tree_add_subtree(tree, tvb, offset, ext_len, hf->ett.hs_ext_npn, NULL, "Next Protocol Negotiation"); while (ext_len > 0) { npn_length = tvb_get_guint8(tvb, offset); proto_tree_add_item(npn_tree, hf->hf.hs_ext_npn_str_len, tvb, offset, 1, ENC_NA); offset++; ext_len--; if (npn_length > 0) { proto_tree_add_item(npn_tree, hf->hf.hs_ext_npn_str, tvb, offset, npn_length, ENC_ASCII|ENC_NA); offset += npn_length; ext_len -= npn_length; } } return offset; } static gint ssl_dissect_hnd_hello_ext_reneg_info(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 ext_len) { guint8 reneg_info_length; proto_tree *reneg_info_tree; if (ext_len == 0) { return offset; } reneg_info_tree = proto_tree_add_subtree(tree, tvb, offset, ext_len, hf->ett.hs_ext_reneg_info, NULL, "Renegotiation Info extension"); reneg_info_length = tvb_get_guint8(tvb, offset); proto_tree_add_item(reneg_info_tree, hf->hf.hs_ext_reneg_info_len, tvb, offset, 1, ENC_NA); offset += 1; if (reneg_info_length > 0) { proto_tree_add_item(reneg_info_tree, hf->hf.hs_ext_reneg_info, tvb, offset, reneg_info_length, ENC_NA); offset += reneg_info_length; } return offset; } static gint ssl_dissect_hnd_hello_ext_server_name(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 ext_len) { guint16 server_name_length; proto_tree *server_name_tree; if (ext_len == 0) { return offset; } server_name_tree = proto_tree_add_subtree(tree, tvb, offset, ext_len, hf->ett.hs_ext_server_name, NULL, "Server Name Indication extension"); proto_tree_add_item(server_name_tree, hf->hf.hs_ext_server_name_list_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; ext_len -= 2; while (ext_len > 0) { proto_tree_add_item(server_name_tree, hf->hf.hs_ext_server_name_type, tvb, offset, 1, ENC_NA); offset += 1; ext_len -= 1; server_name_length = tvb_get_ntohs(tvb, offset); proto_tree_add_item(server_name_tree, hf->hf.hs_ext_server_name_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; ext_len -= 2; if (server_name_length > 0) { proto_tree_add_item(server_name_tree, hf->hf.hs_ext_server_name, tvb, offset, server_name_length, ENC_ASCII|ENC_NA); offset += server_name_length; ext_len -= server_name_length; } } return offset; } static gint ssl_dissect_hnd_hello_ext_padding(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 ext_len) { guint8 padding_length; proto_tree *padding_tree; proto_item *ti; if (ext_len == 0) { return offset; } ti = proto_tree_add_item(tree, hf->hf.hs_ext_padding_data, tvb, offset, ext_len, ENC_NA); padding_tree = proto_item_add_subtree(ti, hf->ett.hs_ext_padding); proto_tree_add_item(padding_tree, hf->hf.hs_ext_padding_len, tvb, offset, 2, ENC_NA); padding_length = tvb_get_guint8(tvb, offset); offset += 2; proto_tree_add_item(padding_tree, hf->hf.hs_ext_padding_data, tvb, offset, padding_length, ENC_NA); offset += padding_length; return offset; } static gint ssl_dissect_hnd_hello_ext_session_ticket(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 ext_len, gboolean is_client, SslDecryptSession *ssl) { if (is_client && ssl && ext_len != 0) { tvb_ensure_bytes_exist(tvb, offset, ext_len); /* Save the Session Ticket such that it can be used as identifier for * restoring a previous Master Secret (in ChangeCipherSpec) */ ssl->session_ticket.data = (guchar*)wmem_realloc(wmem_file_scope(), ssl->session_ticket.data, ext_len); ssl->session_ticket.data_len = ext_len; tvb_memcpy(tvb,ssl->session_ticket.data, offset, ext_len); } proto_tree_add_bytes_format(tree, hf->hf.hs_ext_data, tvb, offset, ext_len, NULL, "Data (%u byte%s)", ext_len, plurality(ext_len, "", "s")); return offset + ext_len; } static gint ssl_dissect_hnd_hello_ext_cert_type(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 ext_len, gboolean is_client, guint16 ext_type, SslSession *session) { guint8 cert_list_length; guint8 cert_type; proto_tree *cert_list_tree; proto_item *ti; if (is_client) { cert_list_length = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf->hf.hs_ext_cert_types_len, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; if (ext_len != (guint32)cert_list_length + 1) return offset; ti = proto_tree_add_item(tree, hf->hf.hs_ext_cert_types, tvb, offset, cert_list_length, cert_list_length); proto_item_append_text(ti, " (%d)", cert_list_length); /* make this a subtree */ cert_list_tree = proto_item_add_subtree(ti, hf->ett.hs_ext_cert_types); /* loop over all point formats */ while (cert_list_length > 0) { proto_tree_add_item(cert_list_tree, hf->hf.hs_ext_cert_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; cert_list_length--; } } else { cert_type = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf->hf.hs_ext_cert_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; if (ext_type == SSL_HND_HELLO_EXT_CERT_TYPE || ext_type == SSL_HND_HELLO_EXT_CLIENT_CERT_TYPE) { session->client_cert_type = cert_type; } if (ext_type == SSL_HND_HELLO_EXT_CERT_TYPE || ext_type == SSL_HND_HELLO_EXT_SERVER_CERT_TYPE) { session->server_cert_type = cert_type; } } return offset; } static gint ssl_dissect_hnd_hello_common(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, SslDecryptSession *ssl, gboolean from_server) { nstime_t gmt_unix_time; guint8 sessid_length; proto_tree *rnd_tree; if (ssl) { StringInfo *rnd; if (from_server) rnd = &ssl->server_random; else rnd = &ssl->client_random; /* save provided random for later keyring generation */ tvb_memcpy(tvb, rnd->data, offset, 32); rnd->data_len = 32; if (from_server) ssl->state |= SSL_SERVER_RANDOM; else ssl->state |= SSL_CLIENT_RANDOM; ssl_debug_printf("%s found %s RANDOM -> state 0x%02X\n", G_STRFUNC, from_server ? "SERVER" : "CLIENT", ssl->state); } rnd_tree = proto_tree_add_subtree(tree, tvb, offset, 32, hf->ett.hs_random, NULL, "Random"); /* show the time */ gmt_unix_time.secs = tvb_get_ntohl(tvb, offset); gmt_unix_time.nsecs = 0; proto_tree_add_time(rnd_tree, hf->hf.hs_random_time, tvb, offset, 4, &gmt_unix_time); offset += 4; /* show the random bytes */ proto_tree_add_item(rnd_tree, hf->hf.hs_random_bytes, tvb, offset, 28, ENC_NA); offset += 28; /* show the session id (length followed by actual Session ID) */ sessid_length = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf->hf.hs_session_id_len, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if (ssl) { /* save the authorative SID for later use in ChangeCipherSpec. * (D)TLS restricts the SID to 32 chars, it does not make sense to * save more, so ignore larger ones. */ if (from_server && sessid_length <= 32) { tvb_memcpy(tvb, ssl->session_id.data, offset, sessid_length); ssl->session_id.data_len = sessid_length; } } if (sessid_length > 0) { proto_tree_add_item(tree, hf->hf.hs_session_id, tvb, offset, sessid_length, ENC_NA); offset += sessid_length; } return offset; } static gint ssl_dissect_hnd_hello_ext_status_request(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, gboolean has_length) { guint cert_status_type; cert_status_type = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf->hf.hs_ext_cert_status_type, tvb, offset, 1, ENC_NA); offset++; if (has_length) { proto_tree_add_item(tree, hf->hf.hs_ext_cert_status_request_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; } switch (cert_status_type) { case SSL_HND_CERT_STATUS_TYPE_OCSP: case SSL_HND_CERT_STATUS_TYPE_OCSP_MULTI: { guint16 responder_id_list_len; guint16 request_extensions_len; proto_item *responder_id; proto_item *request_extensions; responder_id_list_len = tvb_get_ntohs(tvb, offset); responder_id = proto_tree_add_item(tree, hf->hf.hs_ext_cert_status_responder_id_list_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; if (responder_id_list_len != 0) { expert_add_info_format(NULL, responder_id, &hf->ei.hs_ext_cert_status_undecoded, "Responder ID list is not implemented, contact Wireshark" " developers if you want this to be supported"); /* Non-empty responder ID list would mess with extensions. */ break; } request_extensions_len = tvb_get_ntohs(tvb, offset); request_extensions = proto_tree_add_item(tree, hf->hf.hs_ext_cert_status_request_extensions_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; if (request_extensions_len != 0) expert_add_info_format(NULL, request_extensions, &hf->ei.hs_ext_cert_status_undecoded, "Request Extensions are not implemented, contact" " Wireshark developers if you want this to be supported"); break; } } return offset; } static gint ssl_dissect_hnd_hello_ext_status_request_v2(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset) { gint32 list_len; list_len = tvb_get_ntohs(tvb, offset); offset += 2; while (list_len > 0) { guint32 prev_offset = offset; offset = ssl_dissect_hnd_hello_ext_status_request(hf, tvb, tree, offset, TRUE); list_len -= (offset - prev_offset); } return offset; } static gint ssl_dissect_hnd_hello_ext_elliptic_curves(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset) { guint16 curves_length; proto_tree *curves_tree; proto_item *ti; curves_length = tvb_get_ntohs(tvb, offset); proto_tree_add_item(tree, hf->hf.hs_ext_elliptic_curves_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; ti = proto_tree_add_none_format(tree, hf->hf.hs_ext_elliptic_curves, tvb, offset, curves_length, "Elliptic curves (%d curve%s)", curves_length / 2, plurality(curves_length/2, "", "s")); /* make this a subtree */ curves_tree = proto_item_add_subtree(ti, hf->ett.hs_ext_curves); /* loop over all curves */ while (curves_length > 0) { proto_tree_add_item(curves_tree, hf->hf.hs_ext_elliptic_curve, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; curves_length -= 2; } return offset; } static gint ssl_dissect_hnd_hello_ext_ec_point_formats(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset) { guint8 ecpf_length; proto_tree *ecpf_tree; proto_item *ti; ecpf_length = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf->hf.hs_ext_ec_point_formats_len, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; ti = proto_tree_add_none_format(tree, hf->hf.hs_ext_elliptic_curves, tvb, offset, ecpf_length, "Elliptic curves point formats (%d)", ecpf_length); /* make this a subtree */ ecpf_tree = proto_item_add_subtree(ti, hf->ett.hs_ext_curves_point_formats); /* loop over all point formats */ while (ecpf_length > 0) { proto_tree_add_item(ecpf_tree, hf->hf.hs_ext_ec_point_format, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; ecpf_length--; } return offset; } /** TLS Extensions (in Client Hello and Server Hello). }}} */ /* Whether the Content and Handshake Types are valid; handle Protocol Version. {{{ */ gboolean ssl_is_valid_content_type(guint8 type) { switch ((ContentType) type) { case SSL_ID_CHG_CIPHER_SPEC: case SSL_ID_ALERT: case SSL_ID_HANDSHAKE: case SSL_ID_APP_DATA: case SSL_ID_HEARTBEAT: return TRUE; } return FALSE; } gboolean ssl_is_valid_handshake_type(guint8 hs_type, gboolean is_dtls) { switch ((HandshakeType) hs_type) { case SSL_HND_HELLO_VERIFY_REQUEST: /* hello_verify_request is DTLS-only */ return is_dtls; case SSL_HND_HELLO_REQUEST: case SSL_HND_CLIENT_HELLO: case SSL_HND_SERVER_HELLO: case SSL_HND_NEWSESSION_TICKET: case SSL_HND_CERTIFICATE: case SSL_HND_SERVER_KEY_EXCHG: case SSL_HND_CERT_REQUEST: case SSL_HND_SVR_HELLO_DONE: case SSL_HND_CERT_VERIFY: case SSL_HND_CLIENT_KEY_EXCHG: case SSL_HND_FINISHED: case SSL_HND_CERT_URL: case SSL_HND_CERT_STATUS: case SSL_HND_SUPPLEMENTAL_DATA: case SSL_HND_ENCRYPTED_EXTS: return TRUE; } return FALSE; } static gboolean ssl_is_authoritative_version_message(guint8 content_type, guint8 handshake_type, gboolean is_dtls) { /* Consider all valid Handshake messages (except for Client Hello) and * all other valid record types (other than Handshake) */ return (content_type == SSL_ID_HANDSHAKE && ssl_is_valid_handshake_type(handshake_type, is_dtls) && handshake_type != SSL_HND_CLIENT_HELLO) || (content_type != SSL_ID_HANDSHAKE && ssl_is_valid_content_type(content_type)); } void ssl_try_set_version(SslSession *session, SslDecryptSession *ssl, guint8 content_type, guint8 handshake_type, gboolean is_dtls, guint16 version) { if (!ssl_is_authoritative_version_message(content_type, handshake_type, is_dtls)) return; switch (version) { case SSLV3_VERSION: case TLSV1_VERSION: case TLSV1DOT1_VERSION: case TLSV1DOT2_VERSION: if (is_dtls) return; break; case DTLSV1DOT0_VERSION: case DTLSV1DOT0_OPENSSL_VERSION: case DTLSV1DOT2_VERSION: if (!is_dtls) return; break; default: /* invalid version number */ return; } session->version = version; if (ssl) { ssl->state |= SSL_VERSION; ssl_debug_printf("%s found version 0x%04X -> state 0x%02X\n", G_STRFUNC, version, ssl->state); } } /* }}} */ /* Client Hello and Server Hello dissections. {{{ */ static gint ssl_dissect_hnd_hello_ext(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, packet_info* pinfo, guint32 offset, guint32 left, gboolean is_client, SslSession *session, SslDecryptSession *ssl); void ssl_dissect_hnd_cli_hello(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 offset, guint32 length, SslSession *session, SslDecryptSession *ssl, dtls_hfs_t *dtls_hfs) { /* struct { * ProtocolVersion client_version; * Random random; * SessionID session_id; * opaque cookie<0..32>; //new field for DTLS * CipherSuite cipher_suites<2..2^16-1>; * CompressionMethod compression_methods<1..2^8-1>; * Extension client_hello_extension_list<0..2^16-1>; * } ClientHello; * */ proto_item *ti; proto_tree *cs_tree; guint16 cipher_suite_length; guint8 compression_methods_length; guint8 compression_method; guint16 start_offset = offset; /* show the client version */ proto_tree_add_item(tree, hf->hf.hs_client_version, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* dissect fields that are also present in ClientHello */ offset = ssl_dissect_hnd_hello_common(hf, tvb, tree, offset, ssl, FALSE); /* fields specific for DTLS (cookie_len, cookie) */ if (dtls_hfs != NULL) { /* look for a cookie */ guint8 cookie_length = tvb_get_guint8(tvb, offset); proto_tree_add_uint(tree, dtls_hfs->hf_dtls_handshake_cookie_len, tvb, offset, 1, cookie_length); offset++; if (cookie_length > 0) { proto_tree_add_item(tree, dtls_hfs->hf_dtls_handshake_cookie, tvb, offset, cookie_length, ENC_NA); offset += cookie_length; } } /* tell the user how many cipher suites there are */ cipher_suite_length = tvb_get_ntohs(tvb, offset); ti = proto_tree_add_item(tree, hf->hf.hs_cipher_suites_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; if (cipher_suite_length > 0) { if (cipher_suite_length % 2) { expert_add_info_format(pinfo, ti, &hf->ei.hs_cipher_suites_len_bad, "Cipher suite length (%d) must be a multiple of 2", cipher_suite_length); return; } ti = proto_tree_add_none_format(tree, hf->hf.hs_cipher_suites, tvb, offset, cipher_suite_length, "Cipher Suites (%d suite%s)", cipher_suite_length / 2, plurality(cipher_suite_length/2, "", "s")); /* make this a subtree */ cs_tree = proto_item_add_subtree(ti, hf->ett.cipher_suites); while (cipher_suite_length > 0) { proto_tree_add_item(cs_tree, hf->hf.hs_cipher_suite, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; cipher_suite_length -= 2; } } /* tell the user how many compression methods there are */ compression_methods_length = tvb_get_guint8(tvb, offset); proto_tree_add_uint(tree, hf->hf.hs_comp_methods_len, tvb, offset, 1, compression_methods_length); offset += 1; if (compression_methods_length > 0) { ti = proto_tree_add_none_format(tree, hf->hf.hs_comp_methods, tvb, offset, compression_methods_length, "Compression Methods (%u method%s)", compression_methods_length, plurality(compression_methods_length, "", "s")); /* make this a subtree */ cs_tree = proto_item_add_subtree(ti, hf->ett.comp_methods); while (compression_methods_length > 0) { compression_method = tvb_get_guint8(tvb, offset); /* TODO: make reserved/private comp meth. fields selectable */ if (compression_method < 64) proto_tree_add_uint(cs_tree, hf->hf.hs_comp_method, tvb, offset, 1, compression_method); else if (compression_method > 63 && compression_method < 193) proto_tree_add_uint_format_value(cs_tree, hf->hf.hs_comp_method, tvb, offset, 1, compression_method, "Reserved - to be assigned by IANA (%u)", compression_method); else proto_tree_add_uint_format_value(cs_tree, hf->hf.hs_comp_method, tvb, offset, 1, compression_method, "Private use range (%u)", compression_method); offset++; compression_methods_length--; } } if (length > offset - start_offset) { ssl_dissect_hnd_hello_ext(hf, tvb, tree, pinfo, offset, length - (offset - start_offset), TRUE, session, ssl); } } void ssl_dissect_hnd_srv_hello(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, guint32 offset, guint32 length, SslSession *session, SslDecryptSession *ssl, gboolean is_dtls) { /* struct { * ProtocolVersion server_version; * Random random; * SessionID session_id; * CipherSuite cipher_suite; * CompressionMethod compression_method; * Extension server_hello_extension_list<0..2^16-1>; * } ServerHello; */ guint16 start_offset = offset; /* This version is always better than the guess at the Record Layer */ ssl_try_set_version(session, ssl, SSL_ID_HANDSHAKE, SSL_HND_SERVER_HELLO, is_dtls, tvb_get_ntohs(tvb, offset)); /* show the server version */ proto_tree_add_item(tree, hf->hf.hs_server_version, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* dissect fields that are also present in ClientHello */ offset = ssl_dissect_hnd_hello_common(hf, tvb, tree, offset, ssl, TRUE); if (ssl) { /* store selected cipher suite for decryption */ ssl->session.cipher = tvb_get_ntohs(tvb, offset); if (ssl_find_cipher(ssl->session.cipher, &ssl->cipher_suite) < 0) { ssl_debug_printf("%s can't find cipher suite 0x%04X\n", G_STRFUNC, ssl->session.cipher); } else { /* Cipher found, save this for the delayed decoder init */ ssl->state |= SSL_CIPHER; ssl_debug_printf("%s found CIPHER 0x%04X %s -> state 0x%02X\n", G_STRFUNC, ssl->session.cipher, val_to_str_ext_const(ssl->session.cipher, &ssl_31_ciphersuite_ext, "unknown"), ssl->state); } } /* now the server-selected cipher suite */ proto_tree_add_item(tree, hf->hf.hs_cipher_suite, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; if (ssl) { /* store selected compression method for decryption */ ssl->session.compression = tvb_get_guint8(tvb, offset); } /* and the server-selected compression method */ proto_tree_add_item(tree, hf->hf.hs_comp_method, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* remaining data are extensions */ if (length > offset - start_offset) { ssl_dissect_hnd_hello_ext(hf, tvb, tree, pinfo, offset, length - (offset - start_offset), FALSE, session, ssl); } } /* Client Hello and Server Hello dissections. }}} */ /* New Session Ticket dissection. {{{ */ void ssl_dissect_hnd_new_ses_ticket(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, SslDecryptSession *ssl _U_, GHashTable *session_hash _U_) { proto_tree *subtree; guint16 ticket_len; /* length of session ticket, may be 0 if the server has sent the * SessionTicket extension, but decides not to use one. */ ticket_len = tvb_get_ntohs(tvb, offset + 4); subtree = proto_tree_add_subtree(tree, tvb, offset, 6 + ticket_len, hf->ett.session_ticket, NULL, "TLS Session Ticket"); /* ticket lifetime hint */ proto_tree_add_item(subtree, hf->hf.hs_session_ticket_lifetime_hint, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* opaque ticket (length, data) */ proto_tree_add_item(subtree, hf->hf.hs_session_ticket_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* Content depends on implementation, so just show data! */ proto_tree_add_item(subtree, hf->hf.hs_session_ticket, tvb, offset, ticket_len, ENC_NA); /* save the session ticket to cache for ssl_finalize_decryption */ #ifdef HAVE_LIBGCRYPT if (ssl) { tvb_ensure_bytes_exist(tvb, offset, ticket_len); ssl->session_ticket.data = (guchar*)wmem_realloc(wmem_file_scope(), ssl->session_ticket.data, ticket_len); ssl->session_ticket.data_len = ticket_len; tvb_memcpy(tvb, ssl->session_ticket.data, offset, ticket_len); /* NewSessionTicket is received after the first (client) * ChangeCipherSpec, and before the second (server) ChangeCipherSpec. * Since the second CCS has already the session key available it will * just return. To ensure that the session ticket is mapped to a * master key (from the first CCS), save the ticket here too. */ ssl_save_master_key("Session Ticket", session_hash, &ssl->session_ticket, &ssl->master_secret); } #endif } /* }}} */ /* Certificate and Certificate Request dissections. {{{ */ void ssl_dissect_hnd_cert(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, packet_info *pinfo, const SslSession *session, SslDecryptSession *ssl _U_, GHashTable *key_hash _U_, gint is_from_server) { /* opaque ASN.1Cert<1..2^24-1>; * * struct { * select(certificate_type) { * * // certificate type defined in RFC 7250 * case RawPublicKey: * opaque ASN.1_subjectPublicKeyInfo<1..2^24-1>; * * // X.509 certificate defined in RFC 5246 * case X.509: * ASN.1Cert certificate_list<0..2^24-1>; * }; * } Certificate; */ enum { CERT_X509, CERT_RPK } cert_type; asn1_ctx_t asn1_ctx; #if defined(HAVE_LIBGNUTLS) && defined(HAVE_LIBGCRYPT) gnutls_datum_t subjectPublicKeyInfo = { NULL, 0 }; #endif asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo); if ((is_from_server && session->server_cert_type == SSL_HND_CERT_TYPE_RAW_PUBLIC_KEY) || (!is_from_server && session->client_cert_type == SSL_HND_CERT_TYPE_RAW_PUBLIC_KEY)) { cert_type = CERT_RPK; } else { cert_type = CERT_X509; } #if defined(HAVE_LIBGNUTLS) && defined(HAVE_LIBGCRYPT) /* Ask the pkcs1 dissector to return the public key details */ if (ssl) asn1_ctx.private_data = &subjectPublicKeyInfo; #endif switch (cert_type) { case CERT_RPK: { proto_tree_add_item(tree, hf->hf.hs_certificate_len, tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; dissect_x509af_SubjectPublicKeyInfo(FALSE, tvb, offset, &asn1_ctx, tree, hf->hf.hs_certificate); break; } case CERT_X509: { guint32 certificate_list_length; proto_item *ti; proto_tree *subtree; certificate_list_length = tvb_get_ntoh24(tvb, offset); proto_tree_add_uint(tree, hf->hf.hs_certificates_len, tvb, offset, 3, certificate_list_length); offset += 3; /* 24-bit length value */ if (certificate_list_length > 0) { ti = proto_tree_add_none_format(tree, hf->hf.hs_certificates, tvb, offset, certificate_list_length, "Certificates (%u bytes)", certificate_list_length); /* make it a subtree */ subtree = proto_item_add_subtree(ti, hf->ett.certificates); /* iterate through each certificate */ while (certificate_list_length > 0) { /* get the length of the current certificate */ guint32 cert_length; cert_length = tvb_get_ntoh24(tvb, offset); certificate_list_length -= 3 + cert_length; proto_tree_add_item(subtree, hf->hf.hs_certificate_len, tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; dissect_x509af_Certificate(FALSE, tvb, offset, &asn1_ctx, subtree, hf->hf.hs_certificate); #if defined(HAVE_LIBGNUTLS) && defined(HAVE_LIBGCRYPT) /* Only attempt to get the RSA modulus for the first cert. */ asn1_ctx.private_data = NULL; #endif offset += cert_length; } } break; } } #if defined(HAVE_LIBGNUTLS) && defined(HAVE_LIBGCRYPT) if (ssl) ssl_find_private_key_by_pubkey(ssl, key_hash, &subjectPublicKeyInfo); #endif } void ssl_dissect_hnd_cert_req(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, packet_info *pinfo, const SslSession *session) { /* * enum { * rsa_sign(1), dss_sign(2), rsa_fixed_dh(3), dss_fixed_dh(4), * (255) * } ClientCertificateType; * * opaque DistinguishedName<1..2^16-1>; * * struct { * ClientCertificateType certificate_types<1..2^8-1>; * DistinguishedName certificate_authorities<3..2^16-1>; * } CertificateRequest; * * * As per TLSv1.2 (RFC 5246) the format has changed to: * * enum { * rsa_sign(1), dss_sign(2), rsa_fixed_dh(3), dss_fixed_dh(4), * rsa_ephemeral_dh_RESERVED(5), dss_ephemeral_dh_RESERVED(6), * fortezza_dms_RESERVED(20), (255) * } ClientCertificateType; * * enum { * none(0), md5(1), sha1(2), sha224(3), sha256(4), sha384(5), * sha512(6), (255) * } HashAlgorithm; * * enum { anonymous(0), rsa(1), dsa(2), ecdsa(3), (255) } * SignatureAlgorithm; * * struct { * HashAlgorithm hash; * SignatureAlgorithm signature; * } SignatureAndHashAlgorithm; * * SignatureAndHashAlgorithm * supported_signature_algorithms<2..2^16-2>; * * opaque DistinguishedName<1..2^16-1>; * * struct { * ClientCertificateType certificate_types<1..2^8-1>; * SignatureAndHashAlgorithm * supported_signature_algorithms<2^16-1>; * DistinguishedName certificate_authorities<0..2^16-1>; * } CertificateRequest; * */ proto_item *ti; proto_tree *subtree; guint8 cert_types_count; gint sh_alg_length; gint dnames_length; asn1_ctx_t asn1_ctx; gint ret; if (!tree) return; asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo); cert_types_count = tvb_get_guint8(tvb, offset); proto_tree_add_uint(tree, hf->hf.hs_cert_types_count, tvb, offset, 1, cert_types_count); offset++; if (cert_types_count > 0) { ti = proto_tree_add_none_format(tree, hf->hf.hs_cert_types, tvb, offset, cert_types_count, "Certificate types (%u type%s)", cert_types_count, plurality(cert_types_count, "", "s")); subtree = proto_item_add_subtree(ti, hf->ett.cert_types); while (cert_types_count > 0) { proto_tree_add_item(subtree, hf->hf.hs_cert_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; cert_types_count--; } } switch (session->version) { case TLSV1DOT2_VERSION: case DTLSV1DOT2_VERSION: sh_alg_length = tvb_get_ntohs(tvb, offset); if (sh_alg_length % 2) { expert_add_info_format(pinfo, NULL, &hf->ei.hs_sig_hash_alg_len_bad, "Signature Hash Algorithm length (%d) must be a multiple of 2", sh_alg_length); return; } proto_tree_add_uint(tree, hf->hf.hs_sig_hash_alg_len, tvb, offset, 2, sh_alg_length); offset += 2; ret = ssl_dissect_hash_alg_list(hf, tvb, tree, pinfo, offset, sh_alg_length); if (ret >= 0) offset += ret; break; default: break; } dnames_length = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(tree, hf->hf.hs_dnames_len, tvb, offset, 2, dnames_length); offset += 2; if (dnames_length > 0) { ti = proto_tree_add_none_format(tree, hf->hf.hs_dnames, tvb, offset, dnames_length, "Distinguished Names (%d byte%s)", dnames_length, plurality(dnames_length, "", "s")); subtree = proto_item_add_subtree(ti, hf->ett.dnames); while (dnames_length > 0) { /* get the length of the current certificate */ guint16 name_length; name_length = tvb_get_ntohs(tvb, offset); dnames_length -= 2 + name_length; proto_tree_add_item(subtree, hf->hf.hs_dname_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; dissect_x509if_DistinguishedName(FALSE, tvb, offset, &asn1_ctx, subtree, hf->hf.hs_dname); offset += name_length; } } } /* Certificate and Certificate Request dissections. }}} */ static void ssl_dissect_digitally_signed(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, const SslSession *session, gint hf_sig_len, gint hf_sig); void ssl_dissect_hnd_cli_cert_verify(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, const SslSession *session) { ssl_dissect_digitally_signed(hf, tvb, tree, offset, session, hf->hf.hs_client_cert_vrfy_sig_len, hf->hf.hs_client_cert_vrfy_sig); } /* Finished dissection. {{{ */ void ssl_dissect_hnd_finished(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, const SslSession *session, ssl_hfs_t *ssl_hfs) { /* For SSLv3: * struct { * opaque md5_hash[16]; * opaque sha_hash[20]; * } Finished; * * For (D)TLS: * struct { * opaque verify_data[12]; * } Finished; */ if (!tree) return; if (session->version == SSLV3_VERSION) { if (ssl_hfs != NULL) { proto_tree_add_item(tree, ssl_hfs->hs_md5_hash, tvb, offset, 16, ENC_NA); proto_tree_add_item(tree, ssl_hfs->hs_sha_hash, tvb, offset + 16, 20, ENC_NA); } } else { proto_tree_add_item(tree, hf->hf.hs_finished, tvb, offset, 12, ENC_NA); } } /* }}} */ /* RFC 6066 Certificate URL handshake message dissection. {{{ */ void ssl_dissect_hnd_cert_url(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset) { guint16 url_hash_len; /* enum { * individual_certs(0), pkipath(1), (255) * } CertChainType; * * struct { * CertChainType type; * URLAndHash url_and_hash_list<1..2^16-1>; * } CertificateURL; * * struct { * opaque url<1..2^16-1>; * unint8 padding; * opaque SHA1Hash[20]; * } URLAndHash; */ proto_tree_add_item(tree, hf->hf.hs_ext_cert_url_type, tvb, offset, 1, ENC_NA); offset++; url_hash_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(tree, hf->hf.hs_ext_cert_url_url_hash_list_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; while (url_hash_len-- > 0) { proto_item *urlhash_item; proto_tree *urlhash_tree; guint16 url_len; urlhash_item = proto_tree_add_item(tree, hf->hf.hs_ext_cert_url_item, tvb, offset, -1, ENC_NA); urlhash_tree = proto_item_add_subtree(urlhash_item, hf->ett.urlhash); url_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(urlhash_tree, hf->hf.hs_ext_cert_url_url_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(urlhash_tree, hf->hf.hs_ext_cert_url_url, tvb, offset, url_len, ENC_ASCII|ENC_NA); offset += url_len; proto_tree_add_item(urlhash_tree, hf->hf.hs_ext_cert_url_padding, tvb, offset, 1, ENC_NA); offset++; /* Note: RFC 6066 says that padding must be 0x01 */ proto_tree_add_item(urlhash_tree, hf->hf.hs_ext_cert_url_sha1, tvb, offset, 20, ENC_NA); offset += 20; } } /* }}} */ /* Client Hello and Server Hello TLS extensions dissection. {{{ */ static gint ssl_dissect_hnd_hello_ext(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, packet_info* pinfo, guint32 offset, guint32 left, gboolean is_client, SslSession *session, SslDecryptSession *ssl) { guint16 extension_length; guint16 ext_type; guint16 ext_len; proto_tree *ext_tree; if (left < 2) return offset; extension_length = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(tree, hf->hf.hs_exts_len, tvb, offset, 2, extension_length); offset += 2; left -= 2; while (left >= 4) { ext_type = tvb_get_ntohs(tvb, offset); ext_len = tvb_get_ntohs(tvb, offset + 2); ext_tree = proto_tree_add_subtree_format(tree, tvb, offset, 4 + ext_len, hf->ett.hs_ext, NULL, "Extension: %s", val_to_str(ext_type, tls_hello_extension_types, "Unknown %u")); proto_tree_add_uint(ext_tree, hf->hf.hs_ext_type, tvb, offset, 2, ext_type); offset += 2; proto_tree_add_uint(ext_tree, hf->hf.hs_ext_len, tvb, offset, 2, ext_len); offset += 2; switch (ext_type) { case SSL_HND_HELLO_EXT_STATUS_REQUEST: if (is_client) offset = ssl_dissect_hnd_hello_ext_status_request(hf, tvb, ext_tree, offset, FALSE); else offset += ext_len; /* server must return empty extension_data */ break; case SSL_HND_HELLO_EXT_STATUS_REQUEST_V2: if (is_client) offset = ssl_dissect_hnd_hello_ext_status_request_v2(hf, tvb, ext_tree, offset); else offset += ext_len; /* server must return empty extension_data */ break; case SSL_HND_HELLO_EXT_ELLIPTIC_CURVES: offset = ssl_dissect_hnd_hello_ext_elliptic_curves(hf, tvb, ext_tree, offset); break; case SSL_HND_HELLO_EXT_EC_POINT_FORMATS: offset = ssl_dissect_hnd_hello_ext_ec_point_formats(hf, tvb, ext_tree, offset); break; case SSL_HND_HELLO_EXT_SIG_HASH_ALGS: offset = ssl_dissect_hnd_hello_ext_sig_hash_algs(hf, tvb, ext_tree, pinfo, offset, ext_len); break; case SSL_HND_HELLO_EXT_ALPN: offset = ssl_dissect_hnd_hello_ext_alpn(hf, tvb, ext_tree, offset, ext_len, is_client, session); break; case SSL_HND_HELLO_EXT_NPN: offset = ssl_dissect_hnd_hello_ext_npn(hf, tvb, ext_tree, offset, ext_len); break; case SSL_HND_HELLO_EXT_RENEG_INFO: offset = ssl_dissect_hnd_hello_ext_reneg_info(hf, tvb, ext_tree, offset, ext_len); break; case SSL_HND_HELLO_EXT_SERVER_NAME: offset = ssl_dissect_hnd_hello_ext_server_name(hf, tvb, ext_tree, offset, ext_len); break; case SSL_HND_HELLO_EXT_HEARTBEAT: proto_tree_add_item(ext_tree, hf->hf.hs_ext_heartbeat_mode, tvb, offset, 1, ENC_BIG_ENDIAN); offset += ext_len; break; case SSL_HND_HELLO_EXT_PADDING: offset = ssl_dissect_hnd_hello_ext_padding(hf, tvb, ext_tree, offset, ext_len); break; case SSL_HND_HELLO_EXT_SESSION_TICKET: offset = ssl_dissect_hnd_hello_ext_session_ticket(hf, tvb, ext_tree, offset, ext_len, is_client, ssl); break; case SSL_HND_HELLO_EXT_CERT_TYPE: case SSL_HND_HELLO_EXT_SERVER_CERT_TYPE: case SSL_HND_HELLO_EXT_CLIENT_CERT_TYPE: offset = ssl_dissect_hnd_hello_ext_cert_type(hf, tvb, ext_tree, offset, ext_len, is_client, ext_type, session); break; case SSL_HND_HELLO_EXT_EXTENDED_MASTER_SECRET_TYPE: if (ssl) ssl->state |= (is_client ? SSL_CLIENT_EXTENDED_MASTER_SECRET : SSL_SERVER_EXTENDED_MASTER_SECRET); break; default: proto_tree_add_bytes_format(ext_tree, hf->hf.hs_ext_data, tvb, offset, ext_len, NULL, "Data (%u byte%s)", ext_len, plurality(ext_len, "", "s")); offset += ext_len; break; } left -= 2 + 2 + ext_len; } return offset; } /* }}} */ /* ClientKeyExchange algo-specific dissectors. {{{ */ static void dissect_ssl3_hnd_cli_keyex_ecdh(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 length) { gint point_len; proto_tree *ssl_ecdh_tree; ssl_ecdh_tree = proto_tree_add_subtree(tree, tvb, offset, length, hf->ett.keyex_params, NULL, "EC Diffie-Hellman Client Params"); /* point */ point_len = tvb_get_guint8(tvb, offset); proto_tree_add_item(ssl_ecdh_tree, hf->hf.hs_client_keyex_point_len, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ssl_ecdh_tree, hf->hf.hs_client_keyex_point, tvb, offset + 1, point_len, ENC_NA); } static void dissect_ssl3_hnd_cli_keyex_dh(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 length) { gint yc_len; proto_tree *ssl_dh_tree; ssl_dh_tree = proto_tree_add_subtree(tree, tvb, offset, length, hf->ett.keyex_params, NULL, "Diffie-Hellman Client Params"); /* ClientDiffieHellmanPublic.dh_public (explicit) */ yc_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ssl_dh_tree, hf->hf.hs_client_keyex_yc_len, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ssl_dh_tree, hf->hf.hs_client_keyex_yc, tvb, offset + 2, yc_len, ENC_NA); } static void dissect_ssl3_hnd_cli_keyex_rsa(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 length, const SslSession *session) { gint epms_len; proto_tree *ssl_rsa_tree; ssl_rsa_tree = proto_tree_add_subtree(tree, tvb, offset, length, hf->ett.keyex_params, NULL, "RSA Encrypted PreMaster Secret"); /* EncryptedPreMasterSecret.pre_master_secret */ switch (session->version) { case SSLV2_VERSION: case SSLV3_VERSION: case DTLSV1DOT0_OPENSSL_VERSION: /* OpenSSL pre-0.9.8f DTLS and pre-TLS quirk: 2-octet length vector is * not present. The handshake contents represents the EPMS, see: * https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=10222 */ epms_len = length; break; default: /* TLS and DTLS include vector length before EPMS */ epms_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ssl_rsa_tree, hf->hf.hs_client_keyex_epms_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; break; } proto_tree_add_item(ssl_rsa_tree, hf->hf.hs_client_keyex_epms, tvb, offset, epms_len, ENC_NA); } /* Used in PSK cipher suites */ static void dissect_ssl3_hnd_cli_keyex_psk(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 length) { guint identity_len; proto_tree *ssl_psk_tree; ssl_psk_tree = proto_tree_add_subtree(tree, tvb, offset, length, hf->ett.keyex_params, NULL, "PSK Client Params"); /* identity */ identity_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ssl_psk_tree, hf->hf.hs_client_keyex_identity_len, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ssl_psk_tree, hf->hf.hs_client_keyex_identity, tvb, offset + 2, identity_len, ENC_NA); } /* Used in RSA PSK cipher suites */ static void dissect_ssl3_hnd_cli_keyex_rsa_psk(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 length) { gint identity_len, epms_len; proto_tree *ssl_psk_tree; ssl_psk_tree = proto_tree_add_subtree(tree, tvb, offset, length, hf->ett.keyex_params, NULL, "RSA PSK Client Params"); /* identity */ identity_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ssl_psk_tree, hf->hf.hs_client_keyex_identity_len, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ssl_psk_tree, hf->hf.hs_client_keyex_identity, tvb, offset + 2, identity_len, ENC_NA); offset += 2 + identity_len; /* Yc */ epms_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ssl_psk_tree, hf->hf.hs_client_keyex_epms_len, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ssl_psk_tree, hf->hf.hs_client_keyex_epms, tvb, offset + 2, epms_len, ENC_NA); } /* ClientKeyExchange algo-specific dissectors. }}} */ /* Dissects DigitallySigned (see RFC 5246 4.7 Cryptographic Attributes). {{{ */ static void ssl_dissect_digitally_signed(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, const SslSession *session, gint hf_sig_len, gint hf_sig) { gint sig_len; proto_item *ti_algo; proto_tree *ssl_algo_tree; switch (session->version) { case TLSV1DOT2_VERSION: case DTLSV1DOT2_VERSION: ti_algo = proto_tree_add_item(tree, hf->hf.hs_sig_hash_alg, tvb, offset, 2, ENC_BIG_ENDIAN); ssl_algo_tree = proto_item_add_subtree(ti_algo, hf->ett.hs_sig_hash_alg); /* SignatureAndHashAlgorithm { hash, signature } */ proto_tree_add_item(ssl_algo_tree, hf->hf.hs_sig_hash_hash, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ssl_algo_tree, hf->hf.hs_sig_hash_sig, tvb, offset + 1, 1, ENC_BIG_ENDIAN); offset += 2; break; default: break; } /* Sig */ sig_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(tree, hf_sig_len, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_sig, tvb, offset + 2, sig_len, ENC_NA); } /* }}} */ /* ServerKeyExchange algo-specific dissectors. {{{ */ /* dissects signed_params inside a ServerKeyExchange for some keyex algos */ static void dissect_ssl3_hnd_srv_keyex_sig(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, const SslSession *session) { /* * TLSv1.2 (RFC 5246 sec 7.4.8) * struct { * digitally-signed struct { * opaque handshake_messages[handshake_messages_length]; * } * } CertificateVerify; * * TLSv1.0/TLSv1.1 (RFC 5436 sec 7.4.8 and 7.4.3) works essentially the same * as TLSv1.2, but the hash algorithms are not explicit in digitally-signed. * * SSLv3 (RFC 6101 sec 5.6.8) esseentially works the same as TLSv1.0 but it * does more hashing including the master secret and padding. */ ssl_dissect_digitally_signed(hf, tvb, tree, offset, session, hf->hf.hs_server_keyex_sig_len, hf->hf.hs_server_keyex_sig); } static void dissect_ssl3_hnd_srv_keyex_ecdh(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 length, const SslSession *session, gboolean anon) { /* * RFC 4492 ECC cipher suites for TLS * * struct { * ECCurveType curve_type; * select (curve_type) { * case explicit_prime: * ... * case explicit_char2: * ... * case named_curve: * NamedCurve namedcurve; * }; * } ECParameters; * * struct { * opaque point <1..2^8-1>; * } ECPoint; * * struct { * ECParameters curve_params; * ECPoint public; * } ServerECDHParams; * * select (KeyExchangeAlgorithm) { * case ec_diffie_hellman: * ServerECDHParams params; * Signature signed_params; * } ServerKeyExchange; */ gint curve_type; gint point_len; proto_tree *ssl_ecdh_tree; ssl_ecdh_tree = proto_tree_add_subtree(tree, tvb, offset, length, hf->ett.keyex_params, NULL, "EC Diffie-Hellman Server Params"); /* ECParameters.curve_type */ curve_type = tvb_get_guint8(tvb, offset); proto_tree_add_item(ssl_ecdh_tree, hf->hf.hs_server_keyex_curve_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if (curve_type != 3) return; /* only named_curves are supported */ /* case curve_type == named_curve; ECParameters.namedcurve */ proto_tree_add_item(ssl_ecdh_tree, hf->hf.hs_server_keyex_named_curve, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* ECPoint.point */ point_len = tvb_get_guint8(tvb, offset); proto_tree_add_item(ssl_ecdh_tree, hf->hf.hs_server_keyex_point_len, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ssl_ecdh_tree, hf->hf.hs_server_keyex_point, tvb, offset + 1, point_len, ENC_NA); offset += 1 + point_len; /* Signature (if non-anonymous KEX) */ if (!anon) { dissect_ssl3_hnd_srv_keyex_sig(hf, tvb, ssl_ecdh_tree, offset, session); } } static void dissect_ssl3_hnd_srv_keyex_dhe(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 length, const SslSession *session, gboolean anon) { gint p_len, g_len, ys_len; proto_tree *ssl_dh_tree; ssl_dh_tree = proto_tree_add_subtree(tree, tvb, offset, length, hf->ett.keyex_params, NULL, "Diffie-Hellman Server Params"); /* p */ p_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ssl_dh_tree, hf->hf.hs_server_keyex_p_len, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ssl_dh_tree, hf->hf.hs_server_keyex_p, tvb, offset + 2, p_len, ENC_NA); offset += 2 + p_len; /* g */ g_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ssl_dh_tree, hf->hf.hs_server_keyex_g_len, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ssl_dh_tree, hf->hf.hs_server_keyex_g, tvb, offset + 2, g_len, ENC_NA); offset += 2 + g_len; /* Ys */ ys_len = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(ssl_dh_tree, hf->hf.hs_server_keyex_ys_len, tvb, offset, 2, ys_len); proto_tree_add_item(ssl_dh_tree, hf->hf.hs_server_keyex_ys, tvb, offset + 2, ys_len, ENC_NA); offset += 2 + ys_len; /* Signature (if non-anonymous KEX) */ if (!anon) { dissect_ssl3_hnd_srv_keyex_sig(hf, tvb, ssl_dh_tree, offset, session); } } /* Only used in RSA-EXPORT cipher suites */ static void dissect_ssl3_hnd_srv_keyex_rsa(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 length, const SslSession *session) { gint modulus_len, exponent_len; proto_tree *ssl_rsa_tree; ssl_rsa_tree = proto_tree_add_subtree(tree, tvb, offset, length, hf->ett.keyex_params, NULL, "RSA-EXPORT Server Params"); /* modulus */ modulus_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ssl_rsa_tree, hf->hf.hs_server_keyex_modulus_len, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ssl_rsa_tree, hf->hf.hs_server_keyex_modulus, tvb, offset + 2, modulus_len, ENC_NA); offset += 2 + modulus_len; /* exponent */ exponent_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ssl_rsa_tree, hf->hf.hs_server_keyex_exponent_len, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ssl_rsa_tree, hf->hf.hs_server_keyex_exponent, tvb, offset + 2, exponent_len, ENC_NA); offset += 2 + exponent_len; /* Signature */ dissect_ssl3_hnd_srv_keyex_sig(hf, tvb, ssl_rsa_tree, offset, session); } /* Used in RSA PSK and PSK cipher suites */ static void dissect_ssl3_hnd_srv_keyex_psk(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 length) { guint hint_len; proto_tree *ssl_psk_tree; hint_len = tvb_get_ntohs(tvb, offset); if ((2 + hint_len) != length) { /* Lengths don't line up (wasn't what we expected?) */ return; } ssl_psk_tree = proto_tree_add_subtree(tree, tvb, offset, length, hf->ett.keyex_params, NULL, "PSK Server Params"); /* hint */ proto_tree_add_item(ssl_psk_tree, hf->hf.hs_server_keyex_hint_len, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(ssl_psk_tree, hf->hf.hs_server_keyex_hint, tvb, offset + 2, hint_len, ENC_NA); } /* ServerKeyExchange algo-specific dissectors. }}} */ /* Client Key Exchange and Server Key Exchange handshake dissections. {{{ */ void ssl_dissect_hnd_cli_keyex(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 length, const SslSession *session) { switch (ssl_get_keyex_alg(session->cipher)) { case KEX_DH_ANON: /* RFC 5246; DHE_DSS, DHE_RSA, DH_DSS, DH_RSA, DH_ANON: ClientDiffieHellmanPublic */ case KEX_DH_DSS: case KEX_DH_RSA: case KEX_DHE_DSS: case KEX_DHE_RSA: dissect_ssl3_hnd_cli_keyex_dh(hf, tvb, tree, offset, length); break; case KEX_DHE_PSK: /* RFC 4279; diffie_hellman_psk: psk_identity, ClientDiffieHellmanPublic */ /* XXX: implement support for DHE_PSK */ break; case KEX_ECDH_ANON: /* RFC 4492; ec_diffie_hellman: ClientECDiffieHellmanPublic */ case KEX_ECDH_ECDSA: case KEX_ECDH_RSA: case KEX_ECDHE_ECDSA: case KEX_ECDHE_RSA: dissect_ssl3_hnd_cli_keyex_ecdh(hf, tvb, tree, offset, length); break; case KEX_ECDHE_PSK: /* RFC 5489; ec_diffie_hellman_psk: psk_identity, ClientECDiffieHellmanPublic */ /* XXX: implement support for ECDHE_PSK */ break; case KEX_KRB5: /* RFC 2712; krb5: KerberosWrapper */ /* XXX: implement support for KRB5 */ break; case KEX_PSK: /* RFC 4279; psk: psk_identity */ dissect_ssl3_hnd_cli_keyex_psk(hf, tvb, tree, offset, length); break; case KEX_RSA: /* RFC 5246; rsa: EncryptedPreMasterSecret */ dissect_ssl3_hnd_cli_keyex_rsa(hf, tvb, tree, offset, length, session); break; case KEX_RSA_PSK: /* RFC 4279; rsa_psk: psk_identity, EncryptedPreMasterSecret */ dissect_ssl3_hnd_cli_keyex_rsa_psk(hf, tvb, tree, offset, length); break; case KEX_SRP_SHA: /* RFC 5054; srp: ClientSRPPublic */ case KEX_SRP_SHA_DSS: case KEX_SRP_SHA_RSA: /* XXX: implement support for SRP_SHA* */ break; default: /* XXX: add info message for not supported KEX algo */ break; } } void ssl_dissect_hnd_srv_keyex(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint32 length, const SslSession *session) { switch (ssl_get_keyex_alg(session->cipher)) { case KEX_DH_ANON: /* RFC 5246; ServerDHParams */ dissect_ssl3_hnd_srv_keyex_dhe(hf, tvb, tree, offset, length, session, TRUE); break; case KEX_DH_DSS: /* RFC 5246; not allowed */ case KEX_DH_RSA: /* XXX: add error on not allowed KEX */ break; case KEX_DHE_DSS: /* RFC 5246; dhe_dss, dhe_rsa: ServerDHParams, Signature */ case KEX_DHE_RSA: dissect_ssl3_hnd_srv_keyex_dhe(hf, tvb, tree, offset, length, session, FALSE); break; case KEX_DHE_PSK: /* RFC 4279; diffie_hellman_psk: psk_identity_hint, ServerDHParams */ /* XXX: implement support for DHE_PSK */ break; case KEX_ECDH_ANON: /* RFC 4492; ec_diffie_hellman: ServerECDHParams (without signature for anon) */ dissect_ssl3_hnd_srv_keyex_ecdh(hf, tvb, tree, offset, length, session, TRUE); break; case KEX_ECDHE_PSK: /* RFC 5489; psk_identity_hint, ServerECDHParams */ /* XXX: implement support for ECDHE_PSK */ break; case KEX_ECDH_ECDSA: /* RFC 4492; ec_diffie_hellman: ServerECDHParams, Signature */ case KEX_ECDH_RSA: case KEX_ECDHE_ECDSA: case KEX_ECDHE_RSA: dissect_ssl3_hnd_srv_keyex_ecdh(hf, tvb, tree, offset, length, session, FALSE); break; case KEX_KRB5: /* RFC 2712; not allowed */ /* XXX: add error on not allowed KEX */ break; case KEX_PSK: /* RFC 4279; psk, rsa: psk_identity*/ case KEX_RSA_PSK: dissect_ssl3_hnd_srv_keyex_psk(hf, tvb, tree, offset, length); break; case KEX_RSA: /* only allowed if the public key in the server certificate is longer than 512 bits*/ dissect_ssl3_hnd_srv_keyex_rsa(hf, tvb, tree, offset, length, session); break; case KEX_SRP_SHA: /* RFC 5054; srp: ServerSRPParams, Signature */ case KEX_SRP_SHA_DSS: case KEX_SRP_SHA_RSA: /* XXX: implement support for SRP_SHA* */ break; default: /* XXX: add info message for not supported KEX algo */ break; } } /* Client Key Exchange and Server Key Exchange handshake dissections. }}} */ #ifdef HAVE_LIBGCRYPT void ssl_common_register_options(module_t *module, ssl_common_options_t *options) { prefs_register_string_preference(module, "psk", "Pre-Shared-Key", "Pre-Shared-Key as HEX string. Should be 0 to 16 bytes.", &(options->psk)); prefs_register_filename_preference(module, "keylog_file", "(Pre)-Master-Secret log filename", "The name of a file which contains a list of \n" "(pre-)master secrets in one of the following formats:\n" "\n" "RSA \n" "RSA Session-ID: Master-Key:\n" "CLIENT_RANDOM \n" "PMS_CLIENT_RANDOM \n" "\n" "Where:\n" " = First 8 bytes of the Encrypted PMS\n" " = The Pre-Master-Secret (PMS) used to derive the MS\n" " = The SSL Session ID\n" " = The Master-Secret (MS)\n" " = The Client's random number from the ClientHello message\n" "\n" "(All fields are in hex notation)", &(options->keylog_filename)); } #else void ssl_common_register_options(module_t *module _U_, ssl_common_options_t *options _U_) { } #endif void ssl_calculate_handshake_hash(SslDecryptSession *ssl_session, tvbuff_t *tvb, guint32 offset, guint32 length) { if (ssl_session && !(ssl_session->state & SSL_MASTER_SECRET)) { guint32 old_length = ssl_session->handshake_data.data_len; ssl_debug_printf("Calculating hash with offset %d %d\n", offset, length); ssl_session->handshake_data.data = (guchar *)wmem_realloc(wmem_file_scope(), ssl_session->handshake_data.data, old_length + length); tvb_memcpy(tvb, ssl_session->handshake_data.data + old_length, offset, length); ssl_session->handshake_data.data_len += length; } } /* * Editor modelines - http://www.wireshark.org/tools/modelines.html * * Local variables: * c-basic-offset: 4 * tab-width: 8 * indent-tabs-mode: nil * End: * * vi: set shiftwidth=4 tabstop=8 expandtab: * :indentSize=4:tabSize=8:noTabs=true: */