1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis */
2 /* SPDX-License-Identifier: Unlicense */
3 #include "tomcrypt_private.h"
4 
5 /**
6    @file cbc_setiv.c
7    CBC implementation, set IV, Tom St Denis
8 */
9 
10 
11 #ifdef LTC_CBC_MODE
12 
13 /**
14    Set an initialization vector
15    @param IV   The initialization vector
16    @param len  The length of the vector (in octets)
17    @param cbc  The CBC state
18    @return CRYPT_OK if successful
19 */
cbc_setiv(const unsigned char * IV,unsigned long len,symmetric_CBC * cbc)20 int cbc_setiv(const unsigned char *IV, unsigned long len, symmetric_CBC *cbc)
21 {
22    LTC_ARGCHK(IV  != NULL);
23    LTC_ARGCHK(cbc != NULL);
24    if (len != (unsigned long)cbc->blocklen) {
25       return CRYPT_INVALID_ARG;
26    }
27    XMEMCPY(cbc->IV, IV, len);
28    return CRYPT_OK;
29 }
30 
31 #endif
32 
33