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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://libtomcrypt.com
*/
#include "tomcrypt.h"
/**
@file lrw_encrypt.c
LRW_MODE implementation, Encrypt blocks, Tom St Denis
*/
#ifdef LTC_LRW_MODE
/**
LRW encrypt blocks
@param pt The plaintext
@param ct [out] The ciphertext
@param len The length in octets, must be a multiple of 16
@param lrw The LRW state
*/
int lrw_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_LRW *lrw)
{
int err;
LTC_ARGCHK(pt != NULL);
LTC_ARGCHK(ct != NULL);
LTC_ARGCHK(lrw != NULL);
if ((err = cipher_is_valid(lrw->cipher)) != CRYPT_OK) {
return err;
}
if (cipher_descriptor[lrw->cipher].accel_lrw_encrypt != NULL) {
return cipher_descriptor[lrw->cipher].accel_lrw_encrypt(pt, ct, len, lrw->IV, lrw->tweak, &lrw->key);
}
return lrw_process(pt, ct, len, LRW_ENCRYPT, lrw);
}
#endif
/* $Source: /cvs/libtom/libtomcrypt/src/modes/lrw/lrw_encrypt.c,v $ */
/* $Revision: 1.9 $ */
/* $Date: 2006/06/29 01:53:13 $ */
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