1 // SPDX-License-Identifier: BSD-2-Clause
2 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
3  *
4  * LibTomCrypt is a library that provides various cryptographic
5  * algorithms in a highly modular and flexible manner.
6  *
7  * The library is free for all purposes without any express
8  * guarantee it works.
9  */
10 #include "tomcrypt_private.h"
11 
12 /**
13    @file cbc_setiv.c
14    CBC implementation, set IV, Tom St Denis
15 */
16 
17 
18 #ifdef LTC_CBC_MODE
19 
20 /**
21    Set an initialization vector
22    @param IV   The initialization vector
23    @param len  The length of the vector (in octets)
24    @param cbc  The CBC state
25    @return CRYPT_OK if successful
26 */
cbc_setiv(const unsigned char * IV,unsigned long len,symmetric_CBC * cbc)27 int cbc_setiv(const unsigned char *IV, unsigned long len, symmetric_CBC *cbc)
28 {
29    LTC_ARGCHK(IV  != NULL);
30    LTC_ARGCHK(cbc != NULL);
31    if (len != (unsigned long)cbc->blocklen) {
32       return CRYPT_INVALID_ARG;
33    }
34    XMEMCPY(cbc->IV, IV, len);
35    return CRYPT_OK;
36 }
37 
38 #endif
39 
40 
41 /* ref:         $Format:%D$ */
42 /* git commit:  $Format:%H$ */
43 /* commit time: $Format:%ai$ */
44