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comparison src/modes/f8/f8_getiv.c @ 380:d5faf4814ddb libtomcrypt-orig libtomcrypt-1.16

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Update to LibTomCrypt 1.16
author Matt Johnston <matt@ucc.asn.au>
date Thu, 11 Jan 2007 02:22:00 +0000
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280:59400faa4b44 380:d5faf4814ddb
1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
2 *
3 * LibTomCrypt is a library that provides various cryptographic
4 * algorithms in a highly modular and flexible manner.
5 *
6 * The library is free for all purposes without any express
7 * guarantee it works.
8 *
9 * Tom St Denis, [email protected], http://libtomcrypt.com
10 */
11 #include "tomcrypt.h"
12
13 /**
14 @file ofb_getiv.c
15 F8 implementation, get IV, Tom St Denis
16 */
17
18 #ifdef LTC_F8_MODE
19
20 /**
21 Get the current initial vector
22 @param IV [out] The destination of the initial vector
23 @param len [in/out] The max size and resulting size of the initial vector
24 @param f8 The F8 state
25 @return CRYPT_OK if successful
26 */
27 int f8_getiv(unsigned char *IV, unsigned long *len, symmetric_F8 *f8)
28 {
29 LTC_ARGCHK(IV != NULL);
30 LTC_ARGCHK(len != NULL);
31 LTC_ARGCHK(f8 != NULL);
32 if ((unsigned long)f8->blocklen > *len) {
33 *len = f8->blocklen;
34 return CRYPT_BUFFER_OVERFLOW;
35 }
36 XMEMCPY(IV, f8->IV, f8->blocklen);
37 *len = f8->blocklen;
38
39 return CRYPT_OK;
40 }
41
42 #endif
43
44 /* $Source: /cvs/libtom/libtomcrypt/src/modes/f8/f8_getiv.c,v $ */
45 /* $Revision: 1.2 $ */
46 /* $Date: 2006/06/16 22:49:25 $ */