65816-crypto/aescbctest.c

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2017-07-02 23:41:21 +00:00
/*
* Copyright (c) 2017 Stephen Heumann
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <Memory.h>
#include <MiscTool.h>
#include <orca.h>
#include "aes.h"
2017-11-26 03:27:25 +00:00
/* Example vectors from NIST SP 800-38A */
unsigned char iv[16] = {
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,
0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f
};
unsigned char key128[16] = {
0x2b,0x7e,0x15,0x16,0x28,0xae,0xd2,0xa6,
0xab,0xf7,0x15,0x88,0x09,0xcf,0x4f,0x3c
};
unsigned char key192[24] = {
0x8e,0x73,0xb0,0xf7,0xda,0x0e,0x64,0x52,
0xc8,0x10,0xf3,0x2b,0x80,0x90,0x79,0xe5,
0x62,0xf8,0xea,0xd2,0x52,0x2c,0x6b,0x7b
};
unsigned char key256[32] = {
0x60,0x3d,0xeb,0x10,0x15,0xca,0x71,0xbe,
0x2b,0x73,0xae,0xf0,0x85,0x7d,0x77,0x81,
0x1f,0x35,0x2c,0x07,0x3b,0x61,0x08,0xd7,
0x2d,0x98,0x10,0xa3,0x09,0x14,0xdf,0xf4
};
unsigned char plaintext[64] = {
0x6b,0xc1,0xbe,0xe2,0x2e,0x40,0x9f,0x96,
0xe9,0x3d,0x7e,0x11,0x73,0x93,0x17,0x2a,
0xae,0x2d,0x8a,0x57,0x1e,0x03,0xac,0x9c,
0x9e,0xb7,0x6f,0xac,0x45,0xaf,0x8e,0x51,
0x30,0xc8,0x1c,0x46,0xa3,0x5c,0xe4,0x11,
0xe5,0xfb,0xc1,0x19,0x1a,0x0a,0x52,0xef,
0xf6,0x9f,0x24,0x45,0xdf,0x4f,0x9b,0x17,
0xad,0x2b,0x41,0x7b,0xe6,0x6c,0x37,0x10
};
unsigned char output[64];
unsigned char output2[64];
#define BUFSIZE 64000
static void printhex(char *str, unsigned char *buf, unsigned int count) {
unsigned int i;
if (str)
printf("%s\n", str);
for (i = 0; i < count; i++) {
printf("%02x", buf[i]);
if (i && (i & 0x0F) == 0x0F)
printf("\n");
}
}
int main(void) {
struct aes_context **context_hndl;
struct aes_context *context;
unsigned char *inbuf, *outbuf;
unsigned long tick_count;
long double bytes_per_sec;
context_hndl = (struct aes_context **)NewHandle(sizeof(struct aes_context),
userid(), attrFixed|attrPage|attrBank|attrNoCross, 0x000000);
if (toolerror())
return 0;
context = *context_hndl;
memcpy(context->key, key128, 16);
aes128_expandkey(context);
memcpy(context->data, iv, 16);
aes_cbc_encrypt(context, plaintext, output, 4);
printhex("AES-128 ciphertext:", output, 64);
aes_cbc_decrypt(context, output, output2, 4, iv);
printhex("Decrypted plaintext:", output2, 64);
memcpy(context->key, key192, 24);
aes192_expandkey(context);
memcpy(context->data, iv, 16);
aes_cbc_encrypt(context, plaintext, output, 4);
printhex("AES-192 ciphertext:", output, 64);
aes_cbc_decrypt(context, output, output2, 4, iv);
printhex("Decrypted plaintext:", output2, 64);
memcpy(context->key, key256, 32);
aes256_expandkey(context);
memcpy(context->data, iv, 16);
aes_cbc_encrypt(context, plaintext, output, 4);
printhex("AES-256 ciphertext:", output, 64);
aes_cbc_decrypt(context, output, output2, 4, iv);
printhex("Decrypted plaintext:", output2, 64);
/* Timing tests */
inbuf = calloc(BUFSIZE, 1);
outbuf = malloc(BUFSIZE);
if (inbuf == NULL || outbuf == NULL)
return -1;
memcpy(context->key, key128, 16);
aes128_expandkey(context);
memcpy(context->data, iv, 16);
tick_count = GetTick();
aes_cbc_encrypt(context, inbuf, outbuf, BUFSIZE / 16);
tick_count = GetTick() - tick_count;
bytes_per_sec = (long double)BUFSIZE * 60 / tick_count;
printf("AES-128 CBC encryption: %lf bytes/sec\n", bytes_per_sec);
tick_count = GetTick();
aes_cbc_decrypt(context, inbuf, outbuf, BUFSIZE / 16, iv);
tick_count = GetTick() - tick_count;
bytes_per_sec = (long double)BUFSIZE * 60 / tick_count;
printf("AES-128 CBC decryption: %lf bytes/sec\n", bytes_per_sec);
}