diff options
author | Jeff Morriss <jeff.morriss.ws@gmail.com> | 2013-08-01 23:34:47 +0000 |
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committer | Jeff Morriss <jeff.morriss.ws@gmail.com> | 2013-08-01 23:34:47 +0000 |
commit | 2df54da6e2b70777154d38ce3923093568358285 (patch) | |
tree | 4bdb887d40a0a5fee501c0bd30f31388019fbe32 /wsutil/eax.h | |
parent | 6ae3372687957dfbda6352598aee00e84f83f7da (diff) |
Move a bunch of the crypt modules and pint.h into wsutil.
This means wsutil now links against libcrypt.
Protect a bunch of the crypt header files from multiple inclusion.
svn path=/trunk/; revision=51100
Diffstat (limited to 'wsutil/eax.h')
-rw-r--r-- | wsutil/eax.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/wsutil/eax.h b/wsutil/eax.h new file mode 100644 index 0000000000..f1f50e0f16 --- /dev/null +++ b/wsutil/eax.h @@ -0,0 +1,61 @@ +/* eax.h + * Encryption and decryption routines implementing the EAX' encryption mode + * Copyright 2010, Edward J. Beroset, edward.j.beroset@us.elster.com + * + * $Id$ + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef _EAX_H +#define _EAX_H + +#include <glib.h> +#include "ws_symbol_export.h" + +typedef struct tagMAC_T +{ + guint8 Mac[4]; +} MAC_T; + +#define EAX_MODE_CLEARTEXT_AUTH 1 +#define EAX_MODE_CIPHERTEXT_AUTH 2 + +#define EAX_SIZEOF_KEY 16 + +/*! + Decrypts cleartext data using EAX' mode (see ANSI Standard C12.22-2008). + + @param[in] pN pointer to cleartext (canonified form) + @param[in] pK pointer to secret key + @param[in,out] pC pointer to ciphertext + @param[in] SizeN byte length of cleartext (pN) buffer + @param[in] SizeK byte length of secret key (pK) + @param[in] SizeC byte length of ciphertext (pC) buffer + @param[in] pMac four-byte Message Authentication Code + @param[in] Mode EAX_MODE_CLEARTEXT_AUTH or EAX_MODE_CIPHERTEXT_AUTH + @return TRUE if message has been authenticated; FALSE if not + authenticated, invalid Mode or error + */ +WS_DLL_PUBLIC +gboolean Eax_Decrypt(guint8 *pN, guint8 *pK, guint8 *pC, + guint32 SizeN, guint32 SizeK, guint32 SizeC, MAC_T *pMac, + guint8 Mode); + +#endif |