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, tomstdenis@gmail.com, http://libtomcrypt.com
10 */
11 #include "tomcrypt.h"
12
13 /**
14 @file cbc_setiv.c
15 CBC implementation, set IV, Tom St Denis
16 */
17
18
19 #ifdef LTC_CBC_MODE
20
21 /**
22 Set an initial vector
23 @param IV The initial vector
24 @param len The length of the vector (in octets)
25 @param cbc The CBC state
26 @return CRYPT_OK if successful
27 */
cbc_setiv(const unsigned char * IV,unsigned long len,symmetric_CBC * cbc)28 int cbc_setiv(const unsigned char *IV, unsigned long len, symmetric_CBC *cbc)
29 {
30 LTC_ARGCHK(IV != NULL);
31 LTC_ARGCHK(cbc != NULL);
32 if (len != (unsigned long)cbc->blocklen) {
33 return CRYPT_INVALID_ARG;
34 }
35 XMEMCPY(cbc->IV, IV, len);
36 return CRYPT_OK;
37 }
38
39 #endif
40
41
42 /* $Source: /cvs/libtom/libtomcrypt/src/modes/cbc/cbc_setiv.c,v $ */
43 /* $Revision: 1.5 $ */
44 /* $Date: 2006/06/29 01:46:46 $ */
45