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/* LibTomCrypt, modular cryptographic library -- Tom St Denis
*
* LibTomCrypt is a library that provides various cryptographic
* algorithms in a highly modular and flexible manner.
*
* The library is free for all purposes without any express
* guarantee it works.
*
* Tom St Denis, tomstdenis@gmail.com, http://libtom.org
*/
#include "tomcrypt.h"
/**
@file ctr_decrypt.c
CTR implementation, decrypt data, Tom St Denis
*/
#ifdef LTC_CTR_MODE
/**
CTR decrypt
@param ct Ciphertext
@param pt [out] Plaintext
@param len Length of ciphertext (octets)
@param ctr CTR state
@return CRYPT_OK if successful
*/
int ctr_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_CTR *ctr)
{
LTC_ARGCHK(pt != NULL);
LTC_ARGCHK(ct != NULL);
LTC_ARGCHK(ctr != NULL);
return ctr_encrypt(ct, pt, len, ctr);
}
#endif
/* $Source$ */
/* $Revision$ */
/* $Date$ */
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