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 ofb_decrypt.c
15 OFB implementation, decrypt data, Tom St Denis
16 */
17
18 #ifdef LTC_OFB_MODE
19
20 /**
21 OFB decrypt
22 @param ct Ciphertext
23 @param pt [out] Plaintext
24 @param len Length of ciphertext (octets)
25 @param ofb OFB state
26 @return CRYPT_OK if successful
27 */
ofb_decrypt(const unsigned char * ct,unsigned char * pt,unsigned long len,symmetric_OFB * ofb)28 int ofb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_OFB *ofb)
29 {
30 LTC_ARGCHK(pt != NULL);
31 LTC_ARGCHK(ct != NULL);
32 LTC_ARGCHK(ofb != NULL);
33 return ofb_encrypt(ct, pt, len, ofb);
34 }
35
36
37 #endif
38
39
40
41 /* $Source: /cvs/libtom/libtomcrypt/src/modes/ofb/ofb_decrypt.c,v $ */
42 /* $Revision: 1.5 $ */
43 /* $Date: 2006/06/29 01:51:34 $ */
44