jens
191af92d47
Committed on the Free edition of March Hare Software CVSNT Server. Upgrade to CVS Suite for more features and support: http://march-hare.com/cvsnt/ git-svn-id: http://moon:8086/svn/vhdl/trunk@790 cc03376c-175c-47c8-b038-4cd826a8556b
77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
/*
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* Byte-oriented AES-256 implementation.
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* All lookup tables replaced with 'on the fly' calculations.
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*
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* Copyright (c) 2007 Ilya O. Levin, http://www.literatecode.com
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <time.h>
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#include <sys/times.h>
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#include <sys/time.h>
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#include "aes256.h"
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#ifndef NUM_BLOCKS
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#define NUM_BLOCKS 10000
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#endif
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#define DUMP(s, i, buf, sz) {printf(s); \
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for (i = 0; i < (sz);i++) \
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printf("%02x ", buf[i]); \
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printf("\n");}
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int main (int argc, char *argv[])
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{
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aes256_context ctx;
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uint8_t key[32];
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uint8_t buf[16], i;
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long start, end, j;
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/* put a test vector */
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for (i = 0; i < sizeof(buf);i++) buf[i] = i * 16 + i;
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for (i = 0; i < sizeof(key);i++) key[i] = i;
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DUMP("txt: ", i, buf, sizeof(buf));
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DUMP("key: ", i, key, sizeof(key));
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printf("---\n");
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aes256_init(&ctx, key);
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start = clock();
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for (j=0; j < NUM_BLOCKS; j++)
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{
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aes256_encrypt_ecb(&ctx, buf);
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}
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end = clock();
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DUMP("enc: ", i, buf, sizeof(buf));
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printf("Speed %f blocks/s\n", (float)j/((float)(end-start)/CLOCKS_PER_SEC));
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aes256_init(&ctx, key);
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start = clock();
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for (j=0; j < NUM_BLOCKS; j++)
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{
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aes256_decrypt_ecb(&ctx, buf);
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}
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end = clock();
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DUMP("dec: ", i, buf, sizeof(buf));
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printf("Speed %f blocks/s\n", (float)j/((float)(end-start)/CLOCKS_PER_SEC));
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aes256_done(&ctx);
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return 0;
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} /* main */
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