forked from osmocom/wireshark
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/** @file
|
|
* Encryption and decryption routines implementing the EAX' encryption mode
|
|
* Copyright 2010, Edward J. Beroset, edward.j.beroset@us.elster.com
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#ifndef _EAX_H
|
|
#define _EAX_H
|
|
|
|
#include <wireshark.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
|