aes-encrypt.c 1.44 KB
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/* aes-encrypt.c
 *
 * Encryption function for the aes/rijndael block cipher.
 */

/* nettle, low-level cryptographics library
 *
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 * Copyright (C) 2002 Niels Möller
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 *  
 * The nettle library is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or (at your
 * option) any later version.
 * 
 * The nettle library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
 * License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with the nettle library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA 02111-1307, USA.
 */

#if HAVE_CONFIG_H
# include "config.h"
#endif

#include <assert.h>

#include "aes-internal.h"

/* The main point on this function is to help the assembler
   implementations of _nettle_aes_encrypt to get the table pointer.
   For PIC code, the details can be complex and system dependent. */
void
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aes_encrypt(const struct aes_ctx *ctx,
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	    unsigned length, uint8_t *dst,
	    const uint8_t *src)
{
  assert(!(length % AES_BLOCK_SIZE) );
  _aes_encrypt(ctx, &_aes_encrypt_table,
	       length, dst, src);
}