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41 results

sec-add-1.c

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  • aes-encrypt.c 1.35 KiB
    /* aes-encrypt.c
     *
     * Encryption function for the aes/rijndael block cipher.
     */
    
    /* nettle, low-level cryptographics library
     *
     * Copyright (C) 2002 Niels Möller
     *  
     * 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.
     */
    
    #include "aes-internal.h"
    
    #include <assert.h>
    
    /* On my sparc, encryption is significantly slower than decryption,
     * even though the *only* difference is which table is passed to _aes_crypt.
     *
     * Really strange.
     */
    void
    aes_encrypt(struct aes_ctx *ctx,
    	    unsigned length, uint8_t *dst,
    	    const uint8_t *src)
    {
      assert(!(length % AES_BLOCK_SIZE) );
      _aes_crypt(ctx, &_aes_encrypt_table,
    	     length, dst, src);
    }