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 ctr_decrypt.c
15  CTR implementation, decrypt data, Tom St Denis
16*/
17
18#ifdef LTC_CTR_MODE
19
20/**
21   CTR decrypt
22   @param ct      Ciphertext
23   @param pt      [out] Plaintext
24   @param len     Length of ciphertext (octets)
25   @param ctr     CTR state
26   @return CRYPT_OK if successful
27*/
28int ctr_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_CTR *ctr)
29{
30   LTC_ARGCHK(pt != NULL);
31   LTC_ARGCHK(ct != NULL);
32   LTC_ARGCHK(ctr != NULL);
33
34   return ctr_encrypt(ct, pt, len, ctr);
35}
36
37#endif
38
39
40/* $Source: /cvs/libtom/libtomcrypt/src/modes/ctr/ctr_decrypt.c,v $ */
41/* $Revision: 1.5 $ */
42/* $Date: 2006/06/29 01:46:46 $ */
43