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comparison ctr_getiv.c @ 15:6362d3854bb4 libtomcrypt-orig

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0.96 release of LibTomCrypt
author Matt Johnston <matt@ucc.asn.au>
date Tue, 15 Jun 2004 14:07:21 +0000
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children 5d99163f7e32
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3:7faae8f46238 15:6362d3854bb4
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.org
10 */
11
12 #include "mycrypt.h"
13
14 #ifdef CTR
15
16 int ctr_getiv(unsigned char *IV, unsigned long *len, symmetric_CTR *ctr)
17 {
18 _ARGCHK(IV != NULL);
19 _ARGCHK(len != NULL);
20 _ARGCHK(ctr != NULL);
21 if ((unsigned long)ctr->blocklen > *len) {
22 return CRYPT_BUFFER_OVERFLOW;
23 }
24 memcpy(IV, ctr->ctr, ctr->blocklen);
25 *len = ctr->blocklen;
26
27 return CRYPT_OK;
28 }
29
30 #endif