/* packet-ssl-utils.c * ssl manipulation functions * By Paolo Abeni * * $Id$ * * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include #ifdef HAVE_LIBZ #include #endif #include "packet-ssl-utils.h" #include #include #include /* * Lookup tables */ const value_string ssl_version_short_names[] = { { SSL_VER_UNKNOWN, "SSL" }, { SSL_VER_SSLv2, "SSLv2" }, { SSL_VER_SSLv3, "SSLv3" }, { SSL_VER_TLS, "TLSv1" }, { SSL_VER_TLSv1DOT1, "TLSv1.1" }, { SSL_VER_DTLS, "DTLSv1.0" }, { SSL_VER_PCT, "PCT" }, { SSL_VER_TLSv1DOT2, "TLSv1.2" }, { 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] */ /* 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" }, { 0xFF01, "arbitrary_explicit_prime_curves" }, { 0xFF02, "arbitrary_explicit_char2_curves" }, { 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" }, { 0x00, NULL } }; const value_string ssl_versions[] = { { 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" }, { 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" }, { 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_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" }, { 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" }, { 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" }, /* 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 */ { 0x0000FF, "TLS_EMPTY_RENEGOTIATION_INFO_SCSV" }, /* 0x01-BF,* Unassigned */ /* 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" }, /* 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] */ /* 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 } }; /* RFC 4366 */ const value_string tls_hello_extension_types[] = { { 0, "server_name" }, { 1, "max_fragment_length" }, { 2, "client_certificate_url" }, { 3, "trusted_ca_keys" }, { 4, "truncated_hmac" }, { 5, "status_request" }, { 6, "user_mapping" }, /* RFC 4681 */ { 7, "client_authz" }, { 8, "server_authz" }, { 9, "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" }, { 35, "SessionTicket TLS" }, /* RFC 4507 */ { 65281, "renegotiation_info" }, { 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 } }; /* 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 }; static gint ssl_data_alloc(StringInfo* str, size_t len) { str->data = 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) { memcpy(str->data, data, len); str->data_len = len; } #ifdef HAVE_LIBGNUTLS static gint ver_major, ver_minor, ver_patch; /* 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); memcpy(data, gcry_md_read(*(md), algo), len); *datalen =len; } static inline void ssl_hmac_cleanup(SSL_HMAC* md) { gcry_md_close(*(md)); } /* memory 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)); } gint ssl_cipher_setiv(SSL_CIPHER_CTX *cipher, guchar* iv, gint iv_len) { /* guchar * ivp; */ gint ret; /* gint i; */ gcry_cipher_hd_t c; ret=0; c=(gcry_cipher_hd_t)*cipher; ssl_debug_printf("--------------------------------------------------------------------"); /*for(ivp=c->iv,i=0; i < iv_len; i++ ) { ssl_debug_printf("%d ",ivp[i]); i++; } */ ssl_debug_printf("--------------------------------------------------------------------"); ret = gcry_cipher_setiv(*(cipher), iv, iv_len); /*for(ivp=c->iv,i=0; i < iv_len; i++ ) { ssl_debug_printf("%d ",ivp[i]); i++; } */ 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}; 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; } /* private key abstraction layer */ static inline gint ssl_get_key_len(SSL_PRIVATE_KEY* pk) {return gcry_pk_get_nbits (pk); } gcry_err_code_t _gcry_rsa_decrypt (int algo, gcry_mpi_t *result, gcry_mpi_t *data, gcry_mpi_t *skey, gint flags); #define PUBKEY_FLAG_NO_BLINDING (1 << 0) const gchar* ssl_private_key_to_str(SSL_PRIVATE_KEY* pk) { const gchar *str="NULL"; size_t n; gchar *buf; if (!pk) return str; #ifndef SSL_FAST n = gcry_sexp_sprint(pk, GCRYSEXP_FMT_ADVANCED, NULL, 0); buf = ep_alloc(n); n = gcry_sexp_sprint(pk, GCRYSEXP_FMT_ADVANCED, buf, n); str = buf; #else /* SSL_FAST */ str = "TO DO: dump mpi gcry_mpi_print()"; #endif /* SSL_FAST */ return str; } /* decrypt data with private key. Store decrypted data directly into input * buffer */ int ssl_private_decrypt(guint len, guchar* encr_data, SSL_PRIVATE_KEY* pk) { gint rc; size_t decr_len; gcry_sexp_t s_data, s_plain; gcry_mpi_t encr_mpi; size_t i, encr_len; guchar* decr_data_ptr; gcry_mpi_t text; decr_len = 0; encr_len = len; text=NULL; /* build up a mpi rappresentation for encrypted data */ rc = gcry_mpi_scan(&encr_mpi, GCRYMPI_FMT_USG,encr_data, encr_len, &encr_len); if (rc != 0 ) { ssl_debug_printf("pcry_private_decrypt: can't convert encr_data to mpi (size %d):%s\n", len, gcry_strerror(rc)); return 0; } /*ssl_debug_printf("pcry_private_decrypt: pk=%s\n", ssl_private_key_to_str(pk));*/ #ifndef SSL_FAST /* 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)); return 0; } /* pass it to libgcrypt */ rc = gcry_pk_decrypt(&s_plain, s_data, pk); gcry_sexp_release(s_data); if (rc != 0) { ssl_debug_printf("pcry_private_decrypt: can't decrypt key:%s\n", gcry_strerror(rc)); goto out; } /* convert plain text sexp to mpi format */ text = gcry_sexp_nth_mpi(s_plain, 0, 0); /* compute size requested for plaintext buffer */ decr_len = len; if (gcry_mpi_print(GCRYMPI_FMT_USG, NULL, decr_len, &decr_len, text) != 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); return 0; } /* write plain text to encrypted data buffer */ decr_data_ptr = encr_data; if (gcry_mpi_print( GCRYMPI_FMT_USG, decr_data_ptr, decr_len, &decr_len, text) != 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)); g_free(decr_data_ptr); decr_len = 0; goto out; } /* strip the padding*/ rc = 0; for (i = 1; i < decr_len; i++) { if (decr_data_ptr[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); ssl_print_data("decrypted_unstrip_pre_master", decr_data_ptr, decr_len); g_memmove(decr_data_ptr, &decr_data_ptr[rc], decr_len - rc); decr_len -= rc; out: gcry_sexp_release(s_plain); #else /* SSL_FAST */ rc = _gcry_rsa_decrypt(0, &text, &encr_mpi, pk,0); gcry_mpi_print( GCRYMPI_FMT_USG, 0, 0, &decr_len, text); /* sanity check on out buffer */ if (decr_len > len) { ssl_debug_printf("pcry_private_decrypt: decrypted data is too long ?!? (%d max %d)\n", decr_len, len); return 0; } /* write plain text to newly allocated buffer */ decr_data_ptr = encr_data; if (gcry_mpi_print( GCRYMPI_FMT_USG, decr_data_ptr, decr_len, &decr_len, text) != 0) { ssl_debug_printf("pcry_private_decrypt: can't print decr data to mpi (size %d):%s\n", decr_len, gcry_strerror(rc)); return 0; } /* strip the padding*/ rc = 0; for (i = 1; i < decr_len; i++) { if (decr_data_ptr[i] == 0) { rc = i+1; break; } } ssl_debug_printf("pcry_private_decrypt: stripping %d bytes, decr_len %d\n", rc, decr_len); ssl_print_data("decrypted_unstrip_pre_master", decr_data_ptr, decr_len); g_memmove(decr_data_ptr, &decr_data_ptr[rc], decr_len - rc); decr_len -= rc; #endif /* SSL_FAST */ gcry_mpi_release(text); return (int) decr_len; } /* stringinfo interface */ static gint ssl_data_realloc(StringInfo* str, guint len) { str->data = g_realloc(str->data, len); if (!str->data) return -1; str->data_len = len; return 0; } 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; } #define PRF(ssl,secret,usage,rnd1,rnd2,out) ((ssl->version_netorder==SSLV3_VERSION)? \ ssl3_prf(secret,usage,rnd1,rnd2,out): \ tls_prf(secret,usage,rnd1,rnd2,out)) static const gchar *digests[]={ "MD5", "SHA1" }; static const gchar *ciphers[]={ "DES", "3DES", "ARCFOUR", /* gnutls does not support rc4, but this should be 100% compatible*/ "RC2", "IDEA", "AES", "AES256", "*UNKNOWN*" }; static SslCipherSuite cipher_suites[]={ {1,KEX_RSA,SIG_RSA,ENC_NULL,1,0,0,DIG_MD5,16,0, SSL_CIPHER_MODE_STREAM}, {2,KEX_RSA,SIG_RSA,ENC_NULL,1,0,0,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM}, {3,KEX_RSA,SIG_RSA,ENC_RC4,1,128,40,DIG_MD5,16,1, SSL_CIPHER_MODE_STREAM}, {4,KEX_RSA,SIG_RSA,ENC_RC4,1,128,128,DIG_MD5,16,0, SSL_CIPHER_MODE_STREAM}, {5,KEX_RSA,SIG_RSA,ENC_RC4,1,128,128,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM}, {6,KEX_RSA,SIG_RSA,ENC_RC2,8,128,40,DIG_SHA,20,1, SSL_CIPHER_MODE_STREAM}, {7,KEX_RSA,SIG_RSA,ENC_IDEA,8,128,128,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM}, {8,KEX_RSA,SIG_RSA,ENC_DES,8,64,40,DIG_SHA,20,1, SSL_CIPHER_MODE_CBC}, {9,KEX_RSA,SIG_RSA,ENC_DES,8,64,64,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {10,KEX_RSA,SIG_RSA,ENC_3DES,8,192,192,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {11,KEX_DH,SIG_DSS,ENC_DES,8,64,40,DIG_SHA,20,1, SSL_CIPHER_MODE_CBC}, {12,KEX_DH,SIG_DSS,ENC_DES,8,64,64,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {13,KEX_DH,SIG_DSS,ENC_3DES,8,192,192,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {14,KEX_DH,SIG_RSA,ENC_DES,8,64,40,DIG_SHA,20,1, SSL_CIPHER_MODE_CBC}, {15,KEX_DH,SIG_RSA,ENC_DES,8,64,64,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {16,KEX_DH,SIG_RSA,ENC_3DES,8,192,192,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {17,KEX_DH,SIG_DSS,ENC_DES,8,64,40,DIG_SHA,20,1, SSL_CIPHER_MODE_CBC}, {18,KEX_DH,SIG_DSS,ENC_DES,8,64,64,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {19,KEX_DH,SIG_DSS,ENC_3DES,8,192,192,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {20,KEX_DH,SIG_RSA,ENC_DES,8,64,40,DIG_SHA,20,1, SSL_CIPHER_MODE_CBC}, {21,KEX_DH,SIG_RSA,ENC_DES,8,64,64,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {22,KEX_DH,SIG_RSA,ENC_3DES,8,192,192,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {23,KEX_DH,SIG_NONE,ENC_RC4,1,128,40,DIG_MD5,16,1, SSL_CIPHER_MODE_STREAM}, {24,KEX_DH,SIG_NONE,ENC_RC4,1,128,128,DIG_MD5,16,0, SSL_CIPHER_MODE_STREAM}, {25,KEX_DH,SIG_NONE,ENC_DES,8,64,40,DIG_MD5,16,1, SSL_CIPHER_MODE_CBC}, {26,KEX_DH,SIG_NONE,ENC_DES,8,64,64,DIG_MD5,16,0, SSL_CIPHER_MODE_CBC}, {27,KEX_DH,SIG_NONE,ENC_3DES,8,192,192,DIG_MD5,16,0, SSL_CIPHER_MODE_CBC}, {47,KEX_RSA,SIG_RSA,ENC_AES,16,128,128,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {51,KEX_DH, SIG_RSA,ENC_AES,16,128,128,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {53,KEX_RSA,SIG_RSA,ENC_AES256,16,256,256,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {96,KEX_RSA,SIG_RSA,ENC_RC4,1,128,56,DIG_MD5,16,1, SSL_CIPHER_MODE_STREAM}, {97,KEX_RSA,SIG_RSA,ENC_RC2,1,128,56,DIG_MD5,16,1, SSL_CIPHER_MODE_STREAM}, {98,KEX_RSA,SIG_RSA,ENC_DES,8,64,64,DIG_SHA,20,1, SSL_CIPHER_MODE_STREAM}, {99,KEX_DH,SIG_DSS,ENC_DES,8,64,64,DIG_SHA,16,1, SSL_CIPHER_MODE_CBC}, {100,KEX_RSA,SIG_RSA,ENC_RC4,1,128,56,DIG_SHA,20,1, SSL_CIPHER_MODE_STREAM}, {101,KEX_DH,SIG_DSS,ENC_RC4,1,128,56,DIG_SHA,20,1, SSL_CIPHER_MODE_STREAM}, {102,KEX_DH,SIG_DSS,ENC_RC4,1,128,128,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM}, /*{138,KEX_PSK,SIG_RSA,ENC_RC4,16,128,128,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC},*/ {139,KEX_PSK,SIG_RSA,ENC_3DES,8,192,192,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {140,KEX_PSK,SIG_RSA,ENC_AES,16,128,128,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {141,KEX_PSK,SIG_RSA,ENC_AES256,16,256,256,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC}, {-1, 0,0,0,0,0,0,0,0,0, 0} }; #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; } static gint tls_hash(StringInfo* secret, StringInfo* seed, gint md, StringInfo* out) { guint8 *ptr; guint left; gint tocpy; guint8 *A; guint8 _A[20],tmp[20]; guint A_l,tmp_l; SSL_HMAC hm; ptr=out->data; left=out->data_len; ssl_print_string("tls_hash: hash secret", secret); ssl_print_string("tls_hash: hash seed", seed); A=seed->data; A_l=seed->data_len; while(left){ ssl_hmac_init(&hm,secret->data,secret->data_len,md); ssl_hmac_update(&hm,A,A_l); ssl_hmac_final(&hm,_A,&A_l); ssl_hmac_cleanup(&hm); A=_A; 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); ssl_hmac_final(&hm,tmp,&tmp_l); ssl_hmac_cleanup(&hm); tocpy=MIN(left,tmp_l); memcpy(ptr,tmp,tocpy); ptr+=tocpy; left-=tocpy; } ssl_print_string("hash out", out); return (0); } static gint tls_prf(StringInfo* secret, const gchar *usage, StringInfo* rnd1, StringInfo* rnd2, StringInfo* out) { StringInfo seed, sha_out, md5_out; guint8 *ptr; StringInfo s1, s2; guint i,s_l, r; size_t usage_len; r=-1; usage_len = strlen(usage); /* initalize buffer for sha, md5 random seed*/ if (ssl_data_alloc(&sha_out, MAX(out->data_len,20)) < 0) { ssl_debug_printf("tls_prf: can't allocate sha out\n"); return -1; } if (ssl_data_alloc(&md5_out, MAX(out->data_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->data_len) < 0) { ssl_debug_printf("tls_prf: can't allocate rnd %d\n", (int) (usage_len+rnd1->data_len+rnd2->data_len)); goto free_md5; } ptr=seed.data; memcpy(ptr,usage,usage_len); ptr+=usage_len; memcpy(ptr,rnd1->data,rnd1->data_len); 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); if(tls_hash(&s1,&seed,ssl_get_digest_by_name("MD5"),&md5_out) != 0) goto free_all; ssl_debug_printf("tls_prf: tls_hash(sha)\n"); if(tls_hash(&s2,&seed,ssl_get_digest_by_name("SHA1"),&sha_out) != 0) goto free_all; for(i=0;idata_len;i++) out->data[i]=md5_out.data[i] ^ sha_out.data[i]; r =0; ssl_print_string("PRF out",out); free_all: 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 r; } static gint ssl3_generate_export_iv(StringInfo* r1, StringInfo* r2, StringInfo* out) { 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); memcpy(out->data,tmp,out->data_len); ssl_print_string("export iv", out); return(0); } static gint ssl3_prf(StringInfo* secret, const gchar* usage, StringInfo* r1, StringInfo* r2,StringInfo* out) { SSL_MD5_CTX md5; SSL_SHA_CTX sha; StringInfo *rnd1,*rnd2; guint off; gint i=0,j; guint8 buf[20]; rnd1=r1; rnd2=r2; for(off=0;offdata_len;off+=16){ guchar outbuf[16]; gint tocpy; 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")){ 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); 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); tocpy=MIN(out->data_len-off,16); memcpy(out->data+off,outbuf,tocpy); } return(0); } static SslFlow* ssl_create_flow(void) { SslFlow *flow; flow = se_alloc(sizeof(SslFlow)); flow->byte_seq = 0; flow->flags = 0; flow->multisegment_pdus = se_tree_create_non_persistent(EMEM_TREE_TYPE_RED_BLACK, "ssl_multisegment_pdus"); return flow; } #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 = se_alloc(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; } static SslDecoder* ssl_create_decoder(SslCipherSuite *cipher_suite, gint compression, guint8 *mk, guint8 *sk, guint8 *iv) { SslDecoder *dec; gint ciph; ciph=0; dec = se_alloc0(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-0x30) > 7 ? 7 : (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; dec->mac_key.data = dec->_mac_key; ssl_data_set(&dec->mac_key, mk, cipher_suite->dig_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", cipher_suite->dig_len); return dec; } 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 yet generate, create it now*/ if (!(ssl_session->state & SSL_MASTER_SECRET)) { ssl_debug_printf("ssl_generate_keyring_material:PRF(pre_master_secret)\n"); 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_debug_printf("ssl_generate_keyring_material can't generate master_secret\n"); 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_session->cipher_suite.dig_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_len = needed; key_block.data = g_malloc(needed); if (!key_block.data) { ssl_debug_printf("ssl_generate_keyring_material can't allocate key_block (len %d)\n", needed); return -1; } ssl_debug_printf("ssl_generate_keyring_material sess key generation\n"); if (PRF(ssl_session,&ssl_session->master_secret,"key expansion", &ssl_session->server_random,&ssl_session->client_random, &key_block)) { ssl_debug_printf("ssl_generate_keyring_material can't generate key_block\n"); goto fail; } ssl_print_string("key expansion", &key_block); ptr=key_block.data; c_mk=ptr; ptr+=ssl_session->cipher_suite.dig_len; s_mk=ptr; ptr+=ssl_session->cipher_suite.dig_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; } if(ssl_session->cipher_suite.export){ StringInfo iv_c,iv_s; StringInfo key_c,key_s; StringInfo k; 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("ssl_generate_keyring_material cipher suite block must be at most %d nut is %d\n", MAX_BLOCK_SIZE, ssl_session->cipher_suite.block); goto fail; } iv_c.data = _iv_c; iv_c.data_len = ssl_session->cipher_suite.block; iv_s.data = _iv_s; iv_s.data_len = ssl_session->cipher_suite.block; if(ssl_session->version_netorder==SSLV3_VERSION){ ssl_debug_printf("ssl_generate_keyring_material ssl3_generate_export_iv\n"); if (ssl3_generate_export_iv(&ssl_session->client_random, &ssl_session->server_random,&iv_c)) { ssl_debug_printf("ssl_generate_keyring_material can't generate sslv3 client iv\n"); goto fail; } ssl_debug_printf("ssl_generate_keyring_material ssl3_generate_export_iv(2)\n"); if (ssl3_generate_export_iv(&ssl_session->server_random, &ssl_session->client_random,&iv_s)) { ssl_debug_printf("ssl_generate_keyring_material can't generate sslv3 server iv\n"); goto fail; } } 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; iv_block.data_len = ssl_session->cipher_suite.block*2; ssl_debug_printf("ssl_generate_keyring_material prf(iv_block)\n"); if(PRF(ssl_session,&key_null, "IV block", &ssl_session->client_random, &ssl_session->server_random,&iv_block)) { ssl_debug_printf("ssl_generate_keyring_material can't generate tls31 iv block\n"); 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->version_netorder==SSLV3_VERSION){ SSL_MD5_CTX md5; ssl_debug_printf("ssl_generate_keyring_material MD5(client_random)\n"); 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("ssl_generate_keyring_material MD5(server_random)\n"); 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{ key_c.data = _key_c; key_c.data_len = sizeof(_key_c); key_s.data = _key_s; key_s.data_len = sizeof(_key_s); k.data = c_wk; k.data_len = ssl_session->cipher_suite.eff_bits/8; ssl_debug_printf("ssl_generate_keyring_material PRF(key_c)\n"); if (PRF(ssl_session,&k,"client write key", &ssl_session->client_random, &ssl_session->server_random, &key_c)) { ssl_debug_printf("ssl_generate_keyring_material can't generate tll31 server key \n"); goto fail; } c_wk=_key_c; k.data = s_wk; k.data_len = ssl_session->cipher_suite.eff_bits/8; ssl_debug_printf("ssl_generate_keyring_material PRF(key_s)\n"); if(PRF(ssl_session,&k,"server write key", &ssl_session->client_random, &ssl_session->server_random, &key_s)) { ssl_debug_printf("ssl_generate_keyring_material can't generate tll31 client key \n"); goto fail; } s_wk=_key_s; } } /* show key material info */ ssl_print_data("Client MAC key",c_mk,ssl_session->cipher_suite.dig_len); ssl_print_data("Server MAC key",s_mk,ssl_session->cipher_suite.dig_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("ssl_generate_keyring_material ssl_create_decoder(client)\n"); ssl_session->client_new = ssl_create_decoder(&ssl_session->cipher_suite, ssl_session->compression, c_mk, c_wk, c_iv); if (!ssl_session->client_new) { ssl_debug_printf("ssl_generate_keyring_material can't init client decoder\n"); goto fail; } ssl_debug_printf("ssl_generate_keyring_material ssl_create_decoder(server)\n"); ssl_session->server_new = ssl_create_decoder(&ssl_session->cipher_suite, ssl_session->compression, s_mk, s_wk, s_iv); if (!ssl_session->server_new) { ssl_debug_printf("ssl_generate_keyring_material can't init client decoder\n"); goto fail; } ssl_debug_printf("ssl_generate_keyring_material: client seq %d, server seq %d\n", 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; } 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; } } int ssl_decrypt_pre_master_secret(SslDecryptSession*ssl_session, StringInfo* encrypted_pre_master, SSL_PRIVATE_KEY *pk) { gint i; if(ssl_session->cipher_suite.kex == KEX_DH) { ssl_debug_printf("ssl_decrypt_pre_master_secret session uses DH (%d) key exchange, which is impossible to decrypt\n", KEX_DH); return -1; } else if(ssl_session->cipher_suite.kex != KEX_RSA) { ssl_debug_printf("ssl_decrypt_pre_master_secret key exchange %d different from KEX_RSA (%d)\n", ssl_session->cipher_suite.kex, KEX_RSA); return -1; } /* 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("ssl_decrypt_pre_master_secret:RSA_private_decrypt\n"); i=ssl_private_decrypt(encrypted_pre_master->data_len, encrypted_pre_master->data, pk); if (i!=48) { ssl_debug_printf("ssl_decrypt_pre_master_secret wrong " "pre_master_secret length (%d, expected %d)\n", i, 48); return -1; } /* 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 0; } /* 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[20]; gint16 temp; md=ssl_get_digest_by_name(digests[decoder->cipher_suite->dig-0x40]); ssl_debug_printf("tls_check_mac mac type:%s md %d\n", digests[decoder->cipher_suite->dig-0x40], 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*/ 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; } 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(digests[decoder->cipher_suite->dig-0x40]); 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); } #if 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[20]; guint32 netnum; md=ssl_get_digest_by_name(digests[decoder->cipher_suite->dig-0x40]); ssl_debug_printf("dtls_check_mac mac type:%s md %d\n", digests[decoder->cipher_suite->dig-0x40], 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]=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 */ *((gint16*)buf) = g_htons(ver); ssl_hmac_update(&hm,buf,2); *((gint16*)buf) = g_htons(datalen); ssl_hmac_update(&hm,buf,2); ssl_hmac_update(&hm,data,datalen); /* get digest and digest len */ 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); } #endif #ifdef HAVE_LIBZ 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 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); } /* 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; /* Now strip off the padding*/ if(decoder->cipher_suite->block!=1) { pad=out_str->data[inl-1]; worklen-=(pad+1); ssl_debug_printf("ssl_decrypt_record found padding %d final len %d\n", pad, worklen); } /* And the MAC */ if (decoder->cipher_suite->dig_len > (gint)worklen) { ssl_debug_printf("ssl_decrypt_record wrong record len/padding outlen %d\n work %d\n",*outl, worklen); return -1; } worklen-=decoder->cipher_suite->dig_len; mac = out_str->data + worklen; /* if TLS 1.1 we use the transmitted IV and remove it after (to not modify dissector in others parts)*/ if(ssl->version_netorder==TLSV1DOT1_VERSION){ worklen=worklen-decoder->cipher_suite->block; memcpy(out_str->data,out_str->data+decoder->cipher_suite->block,worklen); } if(ssl->version_netorder==DTLSV1DOT0_VERSION || ssl->version_netorder==DTLSV1DOT0_VERSION_NOT){ worklen=worklen-decoder->cipher_suite->block; memcpy(out_str->data,out_str->data+decoder->cipher_suite->block,worklen); } /* Now check the MAC */ ssl_debug_printf("checking mac (len %d, version %X, ct %d seq %d)\n", worklen, ssl->version_netorder, ct, decoder->seq); if(ssl->version_netorder==SSLV3_VERSION){ if(ssl3_check_mac(decoder,ct,out_str->data,worklen,mac) < 0) { ssl_debug_printf("ssl_decrypt_record: mac failed\n"); return -1; } } else if(ssl->version_netorder==TLSV1_VERSION || ssl->version_netorder==TLSV1DOT1_VERSION){ if(tls_check_mac(decoder,ct,ssl->version_netorder,out_str->data,worklen,mac)< 0) { ssl_debug_printf("ssl_decrypt_record: mac failed\n"); return -1; } } else if(ssl->version_netorder==DTLSV1DOT0_VERSION || ssl->version_netorder==DTLSV1DOT0_VERSION_NOT){ /* following the openssl dtls errors the right test is: if(dtls_check_mac(decoder,ct,ssl->version_netorder,out_str->data,worklen,mac)< 0) { */ if(tls_check_mac(decoder,ct,TLSV1_VERSION,out_str->data,worklen,mac)< 0) { ssl_debug_printf("ssl_decrypt_record: mac failed\n"); return -1; } } ssl_debug_printf("ssl_decrypt_record: mac ok\n"); *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; } static void ssl_get_version(gint* major, gint* minor, gint* patch) { *major = ver_major; *minor = ver_minor; *patch = ver_patch; } #define RSA_PARS 6 SSL_PRIVATE_KEY* ssl_privkey_to_sexp(struct gnutls_x509_privkey_int* priv_key) { gnutls_datum_t rsa_datum[RSA_PARS]; /* m, e, d, p, q, u */ size_t tmp_size; gcry_sexp_t rsa_priv_key; gint major, minor, patch; gint i, p_idx, q_idx; int ret; size_t buf_len; unsigned char buf_keyid[32]; #ifdef SSL_FAST gcry_mpi_t* rsa_params = g_malloc(sizeof(gcry_mpi_t)*RSA_PARS); #else gcry_mpi_t rsa_params[RSA_PARS]; #endif buf_len = sizeof(buf_keyid); ret = gnutls_x509_privkey_get_key_id(priv_key, 0, buf_keyid, &buf_len); if (ret != 0) { ssl_debug_printf( "gnutls_x509_privkey_get_key_id(ssl_pkey, 0, buf_keyid, &buf_len) - %s\n", gnutls_strerror(ret)); } else { ssl_debug_printf( "Private key imported: KeyID %s\n", bytes_to_str_punct(buf_keyid, (int) buf_len, ':')); } /* * note: openssl and gnutls use 'p' and 'q' with opposite meaning: * our 'p' must be equal to 'q' as provided from openssl and viceversa */ #if (LIBGNUTLS_VERSION_MAJOR>2)||((LIBGNUTLS_VERSION_MAJOR==2)&&(LIBGNUTLS_VERSION_MINOR>=5)) p_idx = 3; q_idx = 4; #else /* versions 2.4.x and older need 'p' and 'q' swapped */ p_idx = 4; q_idx = 3; #endif /* RSA get parameter */ if (gnutls_x509_privkey_export_rsa_raw(priv_key, &rsa_datum[0], &rsa_datum[1], &rsa_datum[2], &rsa_datum[p_idx], &rsa_datum[q_idx], &rsa_datum[5]) != 0) { ssl_debug_printf("ssl_load_key: can't export rsa param (is a rsa private key file ?!?)\n"); #ifdef SSL_FAST g_free(rsa_params); #endif return NULL; } /* convert each rsa parameter to mpi format*/ for(i=0; i s-exp convertion function does not exist. */ gnutls_x509_privkey_t priv_key; gnutls_datum key; gint size; guint bytes; Ssl_private_key_t *private_key = g_malloc(sizeof(Ssl_private_key_t)); private_key->x509_cert = 0; private_key->x509_pkey = 0; private_key->sexp_pkey = 0; /* init private key data*/ gnutls_x509_privkey_init(&priv_key); /* compute file size and load all file contents into a datum buffer*/ if (fseek(fp, 0, SEEK_END) < 0) { ssl_debug_printf("ssl_load_key: can't fseek file\n"); g_free(private_key); return NULL; } if ((size = ftell(fp)) < 0) { ssl_debug_printf("ssl_load_key: can't ftell file\n"); g_free(private_key); return NULL; } if (fseek(fp, 0, SEEK_SET) < 0) { ssl_debug_printf("ssl_load_key: can't re-fseek file\n"); g_free(private_key); return NULL; } key.data = g_malloc(size); key.size = 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(private_key); g_free(key.data); return NULL; } /* import PEM data*/ if (gnutls_x509_privkey_import(priv_key, &key, GNUTLS_X509_FMT_PEM)!=0) { ssl_debug_printf("ssl_load_key: can't import pem data\n"); g_free(private_key); g_free(key.data); return NULL; } g_free(key.data); private_key->x509_pkey = priv_key; private_key->sexp_pkey = ssl_privkey_to_sexp(priv_key); if ( !private_key->sexp_pkey ) { g_free(private_key); return NULL; } return private_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 ""; } } Ssl_private_key_t * ssl_load_pkcs12(FILE* fp, const gchar *cert_passwd) { 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, buf_len; static char buf_name[256]; static char buf_email[128]; unsigned char buf_keyid[32]; gnutls_pkcs12_t ssl_p12 = NULL; gnutls_x509_crt_t ssl_cert = NULL; gnutls_x509_privkey_t ssl_pkey = NULL; Ssl_private_key_t *private_key = g_malloc(sizeof(Ssl_private_key_t)); private_key->x509_cert = 0; private_key->x509_pkey = 0; private_key->sexp_pkey = 0; rest = 4096; data.data = 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 = 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)) { ssl_debug_printf( "Error during certificate reading.\n"); g_free(private_key); return 0; } ret = gnutls_pkcs12_init(&ssl_p12); if (ret < 0) { ssl_debug_printf("gnutls_pkcs12_init(&st_p12) - %s", gnutls_strerror(ret)); g_free(private_key); return 0; } ret = gnutls_pkcs12_import(ssl_p12, &data, GNUTLS_X509_FMT_DER, 0); g_free(data.data); if (ret < 0) { ssl_debug_printf("gnutls_pkcs12_import(ssl_p12, &data, GNUTLS_X509_FMT_DER, 0) - %s\n", gnutls_strerror(ret)); g_free(private_key); return 0; } ssl_debug_printf( "PKCS#12 imported\n"); for (i=0; ret==0; i++) { if (bag) { gnutls_pkcs12_bag_deinit(bag); bag = NULL; } ret = gnutls_pkcs12_bag_init(&bag); if (ret < 0) continue; ret = gnutls_pkcs12_get_bag(ssl_p12, i, bag); if (ret < 0) continue; for (j=0; ret==0 && j= GNUTLS_BAG_UNKNOWN) continue; 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) continue; ssl_debug_printf( "Bag %d/%d decrypted: %s\n", i, j, BAGTYPE(bag_type)); } ret = 0; } ret = gnutls_pkcs12_bag_get_data(bag, j, &data); if (ret < 0) continue; switch (bag_type) { case GNUTLS_BAG_CERTIFICATE: ret = gnutls_x509_crt_init(&ssl_cert); if (ret < 0) { ssl_debug_printf( "gnutls_x509_crt_init(&ssl_cert) - %s\n", gnutls_strerror(ret)); g_free(private_key); return 0; } ret = gnutls_x509_crt_import(ssl_cert, &data, GNUTLS_X509_FMT_DER); if (ret < 0) { ssl_debug_printf( "gnutls_x509_crt_import(ssl_cert, &data, GNUTLS_X509_FMT_DER) - %s\n", gnutls_strerror(ret)); g_free(private_key); return 0; } buf_len = sizeof(buf_name); ret = gnutls_x509_crt_get_dn_by_oid(ssl_cert, GNUTLS_OID_X520_COMMON_NAME, 0, 0, buf_name, &buf_len); if (ret < 0) { g_strlcpy(buf_name, "", 256); } buf_len = sizeof(buf_email); ret = gnutls_x509_crt_get_dn_by_oid(ssl_cert, GNUTLS_OID_PKCS9_EMAIL, 0, 0, buf_email, &buf_len); if (ret < 0) { g_strlcpy(buf_email, "", 128); } buf_len = sizeof(buf_keyid); ret = gnutls_x509_crt_get_key_id(ssl_cert, 0, buf_keyid, &buf_len); if (ret < 0) { g_strlcpy(buf_keyid, "", 32); } private_key->x509_cert = ssl_cert; ssl_debug_printf( "Certificate imported: %s <%s>, KeyID %s\n", buf_name, buf_email, bytes_to_str(buf_keyid, (int) buf_len)); break; case GNUTLS_BAG_PKCS8_KEY: case GNUTLS_BAG_PKCS8_ENCRYPTED_KEY: ret = gnutls_x509_privkey_init(&ssl_pkey); if (ret < 0) { ssl_debug_printf( "gnutls_x509_privkey_init(&ssl_pkey) - %s\n", gnutls_strerror(ret)); g_free(private_key); return 0; } 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) { ssl_debug_printf( "Can not decrypt private key - %s\n", gnutls_strerror(ret)); g_free(private_key); return 0; } private_key->x509_pkey = ssl_pkey; private_key->sexp_pkey = ssl_privkey_to_sexp(ssl_pkey); if ( !private_key->sexp_pkey ) { g_free(private_key); return NULL; } break; default: ; } } /* j */ } /* i */ return private_key; } void ssl_free_key(Ssl_private_key_t* key) { #if SSL_FAST gint i; for (i=0; i< 6; i++) gcry_mpi_release(key->sexp_pkey[i]); #else gcry_sexp_release(key->sexp_pkey); #endif if (!key->x509_cert) gnutls_x509_crt_deinit (key->x509_cert); if (!key->x509_pkey) gnutls_x509_privkey_deinit(key->x509_pkey); g_free((Ssl_private_key_t*)key); } gint ssl_find_private_key(SslDecryptSession *ssl_session, GHashTable *key_hash, GTree* associations, packet_info *pinfo) { SslService dummy; char ip_addr_any[] = {0,0,0,0}; guint32 port = 0; Ssl_private_key_t * private_key; /* we need to know which side of the conversation is speaking */ if (ssl_packet_from_server(ssl_session, associations, pinfo)) { dummy.addr = pinfo->src; dummy.port = port = pinfo->srcport; } else { dummy.addr = pinfo->dst; dummy.port = port = pinfo->destport; } ssl_debug_printf("ssl_find_private_key server %s:%u\n", ep_address_to_str(&dummy.addr),dummy.port); /* try to retrieve private key for this service. Do it now 'cause pinfo * is not always available * Note that with HAVE_LIBGNUTLS undefined private_key is allways 0 * and thus decryption never engaged*/ ssl_session->private_key = 0; private_key = g_hash_table_lookup(key_hash, &dummy); if (!private_key) { ssl_debug_printf("ssl_find_private_key can't find private key for this server! Try it again with universal port 0\n"); dummy.port = 0; private_key = g_hash_table_lookup(key_hash, &dummy); } if (!private_key) { ssl_debug_printf("ssl_find_private_key can't find private key for this server (universal port)! Try it again with universal address 0.0.0.0\n"); dummy.addr.type = AT_IPv4; dummy.addr.len = 4; dummy.addr.data = ip_addr_any; dummy.port = port; private_key = g_hash_table_lookup(key_hash, &dummy); } if (!private_key) { ssl_debug_printf("ssl_find_private_key can't find any private key!\n"); } else { ssl_session->private_key = private_key->sexp_pkey; } return 0; } void ssl_lib_init(void) { const gchar* str = gnutls_check_version(NULL); /* get library version */ /* old relase of gnutls does not define the appropriate macros, so get * them from the string*/ ssl_debug_printf("gnutls version: %s\n", str); sscanf(str, "%d.%d.%d", &ver_major, &ver_minor, &ver_patch); } #else /* HAVE_LIBGNUTLS */ /* no libgnutl: dummy operation to keep interface consistent*/ void ssl_lib_init(void) { } Ssl_private_key_t * ssl_load_key(FILE* fp) { ssl_debug_printf("ssl_load_key: impossible without gnutls. fp %p\n",fp); return NULL; } Ssl_private_key_t * ssl_load_pkcs12(FILE* fp, const gchar *cert_passwd _U_) { ssl_debug_printf("ssl_load_pkcs12: impossible without gnutls. fp %p\n",fp); return NULL; } void ssl_free_key(Ssl_private_key_t* key _U_) { } gint ssl_find_private_key(SslDecryptSession *ssl_session _U_, GHashTable *key_hash _U_, GTree* associations _U_, packet_info *pinfo _U_) { return 0; } 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; } 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_pre_master_secret(SslDecryptSession* ssl_session, StringInfo* encrypted_pre_master, SSL_PRIVATE_KEY *pk) { ssl_debug_printf("ssl_decrypt_pre_master_secret: impossible without gnutls." " ssl %p encrypted_pre_master %p pk %p\n", ssl_session, encrypted_pre_master, pk); return 0; } 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; } 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_LIBGNUTLS */ /* get ssl data for this session. if no ssl data is found allocate a new one*/ void ssl_session_init(SslDecryptSession* ssl_session) { ssl_debug_printf("ssl_session_init: initializing ptr %p size %" G_GSIZE_MODIFIER "u\n", (void *)ssl_session, sizeof(SslDecryptSession)); ssl_session->master_secret.data = ssl_session->_master_secret; ssl_session->session_id.data = ssl_session->_session_id; ssl_session->client_random.data = ssl_session->_client_random; ssl_session->server_random.data = ssl_session->_server_random; ssl_session->master_secret.data_len = 48; 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; SET_ADDRESS(&ssl_session->srv_addr, AT_NONE, 0, NULL); ssl_session->srv_ptype = PT_NONE; ssl_session->srv_port = 0; } void ssl_set_server(SslDecryptSession* ssl, address *addr, port_type ptype, guint32 port) { SE_COPY_ADDRESS(&ssl->srv_addr, addr); ssl->srv_ptype = ptype; ssl->srv_port = port; } /* Hash Functions for TLS/DTLS sessions table and private keys table*/ 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; } 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_session(). 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; } gint ssl_private_key_equal (gconstpointer v, gconstpointer v2) { const SslService *val1; const SslService *val2; val1 = (const SslService *)v; val2 = (const SslService *)v2; if ((val1->port == val2->port) && ! CMP_ADDRESS(&val1->addr, &val2->addr)) { return 1; } return 0; } guint ssl_private_key_hash (gconstpointer v) { const SslService *key; guint l, hash, len ; const guint* cur; key = (const SslService *)v; hash = key->port; len = key->addr.len; cur = (const guint*) key->addr.data; for (l=4; (ltcp = tcp; assoc->ssl_port = port; assoc->info=g_strdup(protocol); assoc->handle = find_dissector(protocol); assoc->from_key_list = from_key_list; ssl_debug_printf("association_add %s port %d protocol %s handle %p\n", (assoc->tcp)?"TCP":"UDP", port, protocol, (void *)(assoc->handle)); if (!assoc->handle) { ssl_debug_printf("association_add could not find handle for protocol '%s', try to find 'data' dissector\n", protocol); assoc->handle = find_dissector("data"); } if(!assoc->handle) { fprintf(stderr, "association_add() could not find handle for protocol:%s\n",protocol); } else { if(port) { if(tcp) dissector_add_uint("tcp.port", port, handle); else dissector_add_uint("udp.port", port, handle); } g_tree_insert(associations, assoc, assoc); } } void ssl_association_remove(GTree* associations, SslAssociation *assoc) { ssl_debug_printf("ssl_association_remove removing %s %u - %s handle %p\n", (assoc->tcp)?"TCP":"UDP", assoc->ssl_port, assoc->info, (void *)(assoc->handle)); if (assoc->handle) dissector_delete_uint((assoc->tcp)?"tcp.port":"udp.port", assoc->ssl_port, assoc->handle); g_free(assoc->info); g_tree_remove(associations, assoc); g_free(assoc); } gint ssl_association_cmp(gconstpointer a, gconstpointer b) { const SslAssociation *assoc_a=a, *assoc_b=b; if (assoc_a->tcp != assoc_b->tcp) return (assoc_a->tcp)?1:-1; return assoc_a->ssl_port - assoc_b->ssl_port; } SslAssociation* ssl_association_find(GTree * associations, guint port, gboolean tcp) { register SslAssociation* ret; SslAssociation assoc_tmp; assoc_tmp.tcp = tcp; assoc_tmp.ssl_port = port; ret = g_tree_lookup(associations, &assoc_tmp); ssl_debug_printf("association_find: %s port %d found %p\n", (tcp)?"TCP":"UDP", port, (void *)ret); return ret; } gint ssl_assoc_from_key_list(gpointer key _U_, gpointer data, gpointer user_data) { if (((SslAssociation*)data)->from_key_list) ep_stack_push((ep_stack_t)user_data, data); return FALSE; } int ssl_packet_from_server(SslDecryptSession* ssl, GTree* associations, packet_info *pinfo) { gint ret; if (ssl && (ssl->srv_ptype != PT_NONE)) { ret = (ssl->srv_ptype == pinfo->ptype) && (ssl->srv_port == pinfo->srcport) && ADDRESSES_EQUAL(&ssl->srv_addr, &pinfo->src); } else { ret = ssl_association_find(associations, pinfo->srcport, pinfo->ptype == PT_TCP) != 0; } ssl_debug_printf("packet_from_server: is from server - %s\n", (ret)?"TRUE":"FALSE"); return ret; } /* add to packet data a newly allocated tvb with 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; real_data = se_alloc(data_len); rec = se_alloc(sizeof(SslRecordInfo)); pi = p_get_proto_data(pinfo->fd, proto); if (!pi) { pi = se_alloc0(sizeof(SslPacketInfo)); p_add_proto_data(pinfo->fd, proto,pi); } rec->id = record_id; rec->tvb = tvb_new_real_data(real_data, data_len, data_len); memcpy(real_data, data, data_len); /* head insertion */ rec->next= pi->handshake_data; pi->handshake_data = rec; } /* search in packet data the tvbuff associated to the specified id */ tvbuff_t* ssl_get_record_info(int proto, packet_info *pinfo, gint record_id) { SslRecordInfo* rec; SslPacketInfo* pi; pi = p_get_proto_data(pinfo->fd, proto); if (!pi) return NULL; for (rec = pi->handshake_data; rec; rec = rec->next) if (rec->id == record_id) return rec->tvb; 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 = p_get_proto_data(pinfo->fd, proto); if (!pi) { pi = se_alloc0(sizeof(SslPacketInfo)); p_add_proto_data(pinfo->fd, proto,pi); } rec = se_alloc(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; rec->seq = flow->byte_seq; rec->nxtseq = flow->byte_seq + data_len; rec->flow = flow; rec->next = NULL; flow->byte_seq += data_len; /* 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 = p_get_proto_data(pinfo->fd, proto); if (!pi) return NULL; rec = pi->appl_data; while (rec) { if (rec->key == key) return rec; rec = rec->next; } return NULL; } /* initialize/reset per capture state data (ssl sessions cache) */ void ssl_common_init(GHashTable **session_hash, StringInfo *decrypted_data, StringInfo *compressed_data) { if (*session_hash) g_hash_table_destroy(*session_hash); *session_hash = g_hash_table_new(ssl_hash, ssl_equal); g_free(decrypted_data->data); ssl_data_alloc(decrypted_data, 32); g_free(compressed_data->data); ssl_data_alloc(compressed_data, 32); } /* parse ssl related preferences (private keys and ports association strings) */ void ssl_parse_key_list(const gchar * keys_list, GHashTable *key_hash, GTree* associations, dissector_handle_t handle, gboolean tcp) { gchar* end; gchar* start; gchar* tmp; guchar* ip; SslService* service; Ssl_private_key_t * private_key, *tmp_private_key; FILE* fp; start = g_strdup(keys_list); tmp = start; ssl_debug_printf("ssl_init keys string:\n%s\n", start); do { int read_index, write_index; gchar* addr, *port, *protocol, *filename, *cert_passwd; addr = start; /* split ip/file couple with ';' separator*/ end = strpbrk(start, ";\n\r"); if (end) { *end = 0; start = end+1; } /* skip comments (in file) */ if (addr[0] == '#') continue; /* for each entry split ip, port, protocol, filename with ',' separator */ ssl_debug_printf("ssl_init found host entry %s\n", addr); port = strchr(addr, ','); if (!port) { ssl_debug_printf("ssl_init entry malformed can't find port in '%s'\n", addr); continue; } *port = 0; port++; protocol = strchr(port,','); if (!protocol) { ssl_debug_printf("ssl_init entry malformed can't find protocol in %s\n", port); continue; } *protocol=0; protocol++; filename = strchr(protocol,','); if (!filename) { ssl_debug_printf("ssl_init entry malformed can't find filename in %s\n", protocol); continue; } *filename=0; filename++; cert_passwd = strchr(filename,','); if (cert_passwd) { *cert_passwd=0; cert_passwd++; } /* convert ip and port string to network rappresentation*/ service = g_malloc(sizeof(SslService) + 4); service->addr.type = AT_IPv4; service->addr.len = 4; service->addr.data = ip = ((guchar*)service) + sizeof(SslService); /* remove all spaces in addr */ read_index = 0; write_index = 0; while(addr[read_index]) { if (addr[read_index] != ' ') { addr[write_index] = addr[read_index]; write_index++; } read_index++; } addr[write_index] = 0; if ( !strcmp("any", addr) || !strcmp("ANY", addr) ) { ip[0] = 0; ip[1] = 0; ip[2] = 0; ip[3] = 0; } else { guint tmp0, tmp1, tmp2, tmp3; sscanf(addr, "%u.%u.%u.%u", &tmp0, &tmp1, &tmp2, &tmp3); ip[0] = (guchar)tmp0; ip[1] = (guchar)tmp1; ip[2] = (guchar)tmp2; ip[3] = (guchar)tmp3; } if(!strcmp("start_tls", port)) { service->port = 0; } else { service->port = atoi(port); } ssl_debug_printf("ssl_init addr '%u.%u.%u.%u' port '%d' filename '%s' password(only for p12 file) '%s'\n", ip[0], ip[1], ip[2], ip[3], service->port, filename, cert_passwd ? cert_passwd : "(null)"); /* try to load pen or p12 file*/ fp = ws_fopen(filename, "rb"); if (!fp) { fprintf(stderr, "can't open file %s \n",filename); continue; } if (!cert_passwd) { private_key = ssl_load_key(fp); } else { private_key = ssl_load_pkcs12(fp,cert_passwd); } /* !!! */ if (!private_key) { fprintf(stderr,"can't load private key from %s\n", filename); continue; } fclose(fp); ssl_debug_printf("ssl_init private key file %s successfully loaded\n",filename); /* if item exists, remove first */ tmp_private_key = g_hash_table_lookup(key_hash, service); if (tmp_private_key) { g_hash_table_remove(key_hash, service); ssl_free_key(tmp_private_key); } g_hash_table_insert(key_hash, service, private_key); ssl_association_add(associations, handle, service->port, protocol, tcp, TRUE); } while (end != NULL); g_free(tmp); } /* store master secret into session data cache */ void ssl_save_session(SslDecryptSession* ssl, GHashTable *session_hash) { /* allocate stringinfo chunks for session id and master secret data*/ StringInfo* session_id; StringInfo* master_secret; session_id = se_alloc0(sizeof(StringInfo) + ssl->session_id.data_len); master_secret = se_alloc0(48 + sizeof(StringInfo)); master_secret->data = ((guchar*)master_secret+sizeof(StringInfo)); /* ssl_hash() depends on session_id->data being aligned for guint access * so be careful in changing how it is allocated. */ session_id->data = ((guchar*)session_id+sizeof(StringInfo)); ssl_data_set(session_id, ssl->session_id.data, ssl->session_id.data_len); ssl_data_set(master_secret, ssl->master_secret.data, ssl->master_secret.data_len); g_hash_table_insert(session_hash, session_id, master_secret); ssl_print_string("ssl_save_session stored session id", session_id); ssl_print_string("ssl_save_session stored master secret", master_secret); } void ssl_restore_session(SslDecryptSession* ssl, GHashTable *session_hash) { StringInfo* ms; ms = g_hash_table_lookup(session_hash, &ssl->session_id); if (!ms) { ssl_debug_printf("ssl_restore_session can't find stored session\n"); return; } ssl_data_set(&ssl->master_secret, ms->data, ms->data_len); ssl->state |= SSL_MASTER_SECRET; ssl_debug_printf("ssl_restore_session master key retrieved\n"); } int ssl_is_valid_content_type(guint8 type) { if (type >= 0x14 && type <= 0x17) { return 1; } return 0; } #ifdef SSL_DECRYPT_DEBUG static FILE* ssl_debug_file=NULL; void ssl_set_debug(char* 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; } void ssl_debug_flush(void) { if (ssl_debug_file) fflush(ssl_debug_file); } void ssl_debug_printf(const gchar* fmt, ...) { va_list ap; gint ret; ret=0; if (!ssl_debug_file) return; va_start(ap, fmt); ret += vfprintf(ssl_debug_file, fmt, ap); va_end(ap); } void ssl_print_text_data(const gchar* name, const guchar* data, size_t len) { size_t i; if (!ssl_debug_file) return; fprintf(ssl_debug_file,"%s: ",name); for (i=0; i< len; i++) { fprintf(ssl_debug_file,"%c",data[i]); } fprintf(ssl_debug_file,"\n"); } void ssl_print_data(const gchar* name, const guchar* data, size_t len) { size_t i; if (!ssl_debug_file) return; fprintf(ssl_debug_file,"%s[%d]:\n",name, (int) len); for (i=0; i< len; i++) { if ((i>0) && (i%16 == 0)) fprintf(ssl_debug_file,"\n"); fprintf(ssl_debug_file,"%.2x ",data[i]&255); } fprintf(ssl_debug_file,"\n"); } void ssl_print_string(const gchar* name, const StringInfo* data) { ssl_print_data(name, data->data, data->data_len); } #endif /* SSL_DECRYPT_DEBUG */