[Opentnl-cvs] tnl/libtomcrypt/modes/ecb ecb_decrypt.c,NONE,1.1 ecb_done.c,NONE,1.1 ecb_encrypt.c,NONE,1.1 ecb_start.c,NONE,1.1

[Mark F. <mar...@us...>]

Update of /cvsroot/opentnl/tnl/libtomcrypt/modes/ecb
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv26694/libtomcrypt/modes/ecb

Added Files:
	ecb_decrypt.c ecb_done.c ecb_encrypt.c ecb_start.c 
Log Message:
Updated to libtomcrypt 1.0.2
Not tested on linux or OS X

--- NEW FILE: ecb_encrypt.c ---
/* 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, tom...@gm..., http://libtomcrypt.org
 */
#include "tomcrypt.h"

/**
  @file ecb_encrypt.c
  ECB implementation, encrypt a block, Tom St Denis
*/

#ifdef ECB

/**
  ECB encrypt
  @param pt     Plaintext
  @param ct     [out] Ciphertext
  @param len    The number of octets to process (must be multiple of the cipher block size)
  @param ecb    ECB state
  @return CRYPT_OK if successful
*/
int ecb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_ECB *ecb)
{
   int err;
   LTC_ARGCHK(pt != NULL);
   LTC_ARGCHK(ct != NULL);
   LTC_ARGCHK(ecb != NULL);
   if ((err = cipher_is_valid(ecb->cipher)) != CRYPT_OK) {
       return err;
   }
   if (len % cipher_descriptor[ecb->cipher].block_length) {
      return CRYPT_INVALID_ARG;
   }

   /* check for accel */
   if (cipher_descriptor[ecb->cipher].accel_ecb_encrypt != NULL) {
      cipher_descriptor[ecb->cipher].accel_ecb_encrypt(pt, ct, len / cipher_descriptor[ecb->cipher].block_length, &ecb->key);
   } else {
      while (len) {
         cipher_descriptor[ecb->cipher].ecb_encrypt(pt, ct, &ecb->key);
         pt  += cipher_descriptor[ecb->cipher].block_length;
         ct  += cipher_descriptor[ecb->cipher].block_length;
         len -= cipher_descriptor[ecb->cipher].block_length;
      }
   }
   return CRYPT_OK;
}

#endif

--- NEW FILE: ecb_start.c ---
/* 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, tom...@gm..., http://libtomcrypt.org
 */
#include "tomcrypt.h"

/**
   @file ecb_start.c
   ECB implementation, start chain, Tom St Denis
*/


#ifdef ECB

/**
   Initialize a ECB context
   @param cipher      The index of the cipher desired
   @param key         The secret key 
   @param keylen      The length of the secret key (octets)
   @param num_rounds  Number of rounds in the cipher desired (0 for default)
   @param ecb         The ECB state to initialize
   @return CRYPT_OK if successful
*/
int ecb_start(int cipher, const unsigned char *key, int keylen, int num_rounds, symmetric_ECB *ecb)
{
   int err;
   LTC_ARGCHK(key != NULL);
   LTC_ARGCHK(ecb != NULL);

   if ((err = cipher_is_valid(cipher)) != CRYPT_OK) {
      return err;
   }
   ecb->cipher = cipher;
   ecb->blocklen = cipher_descriptor[cipher].block_length;
   return cipher_descriptor[cipher].setup(key, keylen, num_rounds, &ecb->key);
}

#endif

--- NEW FILE: ecb_decrypt.c ---
/* 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, tom...@gm..., http://libtomcrypt.org
 */
#include "tomcrypt.h"

/**
  @file ecb_decrypt.c
  ECB implementation, decrypt a block, Tom St Denis
*/

#ifdef ECB

/**
  ECB decrypt
  @param ct     Ciphertext
  @param pt     [out] Plaintext
  @param len    The number of octets to process (must be multiple of the cipher block size)
  @param ecb    ECB state
  @return CRYPT_OK if successful
*/
int ecb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_ECB *ecb)
{
   int err;
   LTC_ARGCHK(pt != NULL);
   LTC_ARGCHK(ct != NULL);
   LTC_ARGCHK(ecb != NULL);
   if ((err = cipher_is_valid(ecb->cipher)) != CRYPT_OK) {
       return err;
   }
   if (len % cipher_descriptor[ecb->cipher].block_length) {
      return CRYPT_INVALID_ARG;
   }

   /* check for accel */
   if (cipher_descriptor[ecb->cipher].accel_ecb_decrypt != NULL) {
      cipher_descriptor[ecb->cipher].accel_ecb_decrypt(ct, pt, len / cipher_descriptor[ecb->cipher].block_length, &ecb->key);
   } else {
      while (len) {
         cipher_descriptor[ecb->cipher].ecb_decrypt(ct, pt, &ecb->key);
         pt  += cipher_descriptor[ecb->cipher].block_length;
         ct  += cipher_descriptor[ecb->cipher].block_length;
         len -= cipher_descriptor[ecb->cipher].block_length;
      }
   }
   return CRYPT_OK;
}

#endif

--- NEW FILE: ecb_done.c ---
/* 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, tom...@gm..., http://libtomcrypt.org
 */
#include "tomcrypt.h"

/**
   @file ecb_done.c
   ECB implementation, finish chain, Tom St Denis
*/

#ifdef ECB

/** Terminate the chain
  @param rcb    The ECB chain to terminate
  @return CRYPT_OK on success
*/
int ecb_done(symmetric_ECB *ecb)
{
   int err;
   LTC_ARGCHK(ecb != NULL);

   if ((err = cipher_is_valid(ecb->cipher)) != CRYPT_OK) {
      return err;
   }
   cipher_descriptor[ecb->cipher].done(&ecb->key);
   return CRYPT_OK;
}

   

#endif