blob: bc7118c2904a9251fb0943a3631744ab3fba011c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/* eax.h
* 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 <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
|
