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test.c
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test.c
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/*********************************************************************
* Copyright (c) 2016 Pieter Wuille *
* Distributed under the MIT software license, see the accompanying *
* file COPYING or https://opensource.org/licenses/mit-license.php. *
**********************************************************************/
#include "ctaes.h"
#include <stdio.h>
#include <string.h>
#include <assert.h>
typedef struct {
int keysize;
const char* key;
const char* plain;
const char* cipher;
} ctaes_test;
typedef struct {
int keysize;
const char* key;
const char* iv;
int nblocks;
const char* plain;
const char* cipher;
} ctaes_cbc_test;
static const ctaes_test ctaes_tests[] = {
/* AES test vectors from FIPS 197. */
{128, "000102030405060708090a0b0c0d0e0f", "00112233445566778899aabbccddeeff", "69c4e0d86a7b0430d8cdb78070b4c55a"},
{192, "000102030405060708090a0b0c0d0e0f1011121314151617", "00112233445566778899aabbccddeeff", "dda97ca4864cdfe06eaf70a0ec0d7191"},
{256, "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "00112233445566778899aabbccddeeff", "8ea2b7ca516745bfeafc49904b496089"},
/* AES-ECB test vectors from NIST sp800-38a. */
{128, "2b7e151628aed2a6abf7158809cf4f3c", "6bc1bee22e409f96e93d7e117393172a", "3ad77bb40d7a3660a89ecaf32466ef97"},
{128, "2b7e151628aed2a6abf7158809cf4f3c", "ae2d8a571e03ac9c9eb76fac45af8e51", "f5d3d58503b9699de785895a96fdbaaf"},
{128, "2b7e151628aed2a6abf7158809cf4f3c", "30c81c46a35ce411e5fbc1191a0a52ef", "43b1cd7f598ece23881b00e3ed030688"},
{128, "2b7e151628aed2a6abf7158809cf4f3c", "f69f2445df4f9b17ad2b417be66c3710", "7b0c785e27e8ad3f8223207104725dd4"},
{192, "8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b", "6bc1bee22e409f96e93d7e117393172a", "bd334f1d6e45f25ff712a214571fa5cc"},
{192, "8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b", "ae2d8a571e03ac9c9eb76fac45af8e51", "974104846d0ad3ad7734ecb3ecee4eef"},
{192, "8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b", "30c81c46a35ce411e5fbc1191a0a52ef", "ef7afd2270e2e60adce0ba2face6444e"},
{192, "8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b", "f69f2445df4f9b17ad2b417be66c3710", "9a4b41ba738d6c72fb16691603c18e0e"},
{256, "603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4", "6bc1bee22e409f96e93d7e117393172a", "f3eed1bdb5d2a03c064b5a7e3db181f8"},
{256, "603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4", "ae2d8a571e03ac9c9eb76fac45af8e51", "591ccb10d410ed26dc5ba74a31362870"},
{256, "603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4", "30c81c46a35ce411e5fbc1191a0a52ef", "b6ed21b99ca6f4f9f153e7b1beafed1d"},
{256, "603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4", "f69f2445df4f9b17ad2b417be66c3710", "23304b7a39f9f3ff067d8d8f9e24ecc7"}
};
static const ctaes_cbc_test ctaes_cbc_tests[] = {
/* AES-CBC test vectors from NIST sp800-38a. */
{
128, "2b7e151628aed2a6abf7158809cf4f3c", "000102030405060708090a0b0c0d0e0f", 4,
"6bc1bee22e409f96e93d7e117393172aae2d8a571e03ac9c9eb76fac45af8e5130c81c46a35ce411e5fbc1191a0a52eff69f2445df4f9b17ad2b417be66c3710",
"7649abac8119b246cee98e9b12e9197d5086cb9b507219ee95db113a917678b273bed6b8e3c1743b7116e69e222295163ff1caa1681fac09120eca307586e1a7"
},
{
192, "8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b", "000102030405060708090a0b0c0d0e0f", 4,
"6bc1bee22e409f96e93d7e117393172aae2d8a571e03ac9c9eb76fac45af8e5130c81c46a35ce411e5fbc1191a0a52eff69f2445df4f9b17ad2b417be66c3710",
"4f021db243bc633d7178183a9fa071e8b4d9ada9ad7dedf4e5e738763f69145a571b242012fb7ae07fa9baac3df102e008b0e27988598881d920a9e64f5615cd"
},
{
256, "603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4", "000102030405060708090a0b0c0d0e0f", 4,
"6bc1bee22e409f96e93d7e117393172aae2d8a571e03ac9c9eb76fac45af8e5130c81c46a35ce411e5fbc1191a0a52eff69f2445df4f9b17ad2b417be66c3710",
"f58c4c04d6e5f1ba779eabfb5f7bfbd69cfc4e967edb808d679f777bc6702c7d39f23369a9d9bacfa530e26304231461b2eb05e2c39be9fcda6c19078c6a9d1b"
}
};
static void from_hex(unsigned char* data, int len, const char* hex) {
int p;
for (p = 0; p < len; p++) {
int v = 0;
int n;
for (n = 0; n < 2; n++) {
assert((*hex >= '0' && *hex <= '9') || (*hex >= 'a' && *hex <= 'f'));
if (*hex >= '0' && *hex <= '9') {
v |= (*hex - '0') << (4 * (1 - n));
} else {
v |= (*hex - 'a' + 10) << (4 * (1 - n));
}
hex++;
}
*(data++) = v;
}
assert(*hex == 0);
}
int main(void) {
int i;
int fail = 0;
for (i = 0; i < sizeof(ctaes_tests) / sizeof(ctaes_tests[0]); i++) {
unsigned char key[32], plain[16], cipher[16], ciphered[16], deciphered[16];
const ctaes_test* test = &ctaes_tests[i];
assert(test->keysize == 128 || test->keysize == 192 || test->keysize == 256);
from_hex(plain, 16, test->plain);
from_hex(cipher, 16, test->cipher);
switch (test->keysize) {
case 128: {
AES128_ctx ctx;
from_hex(key, 16, test->key);
AES128_init(&ctx, key);
AES128_encrypt(&ctx, 1, ciphered, plain);
AES128_decrypt(&ctx, 1, deciphered, cipher);
break;
}
case 192: {
AES192_ctx ctx;
from_hex(key, 24, test->key);
AES192_init(&ctx, key);
AES192_encrypt(&ctx, 1, ciphered, plain);
AES192_decrypt(&ctx, 1, deciphered, cipher);
break;
}
case 256: {
AES256_ctx ctx;
from_hex(key, 32, test->key);
AES256_init(&ctx, key);
AES256_encrypt(&ctx, 1, ciphered, plain);
AES256_decrypt(&ctx, 1, deciphered, cipher);
break;
}
}
if (memcmp(cipher, ciphered, 16)) {
fprintf(stderr, "E(key=\"%s\", plain=\"%s\") != \"%s\"\n", test->key, test->plain, test->cipher);
fail++;
}
if (memcmp(plain, deciphered, 16)) {
fprintf(stderr, "D(key=\"%s\", cipher=\"%s\") != \"%s\"\n", test->key, test->cipher, test->plain);
fail++;
}
}
for (i = 0; i < sizeof(ctaes_cbc_tests) / sizeof(ctaes_cbc_tests[0]); i++) {
const ctaes_cbc_test* test = &ctaes_cbc_tests[i];
unsigned char key[32], iv[16], plain[4 * 16], cipher[4 * 16], ciphered[4 * 16], deciphered[4 * 16];
assert(test->keysize == 128 || test->keysize == 192 || test->keysize == 256);
assert(test->nblocks == 4);
from_hex(iv, 16, test->iv);
from_hex(plain, test->nblocks * 16, test->plain);
from_hex(cipher, test->nblocks * 16, test->cipher);
switch (test->keysize) {
case 128: {
AES128_CBC_ctx ctx;
from_hex(key, 16, test->key);
AES128_CBC_init(&ctx, key, iv);
AES128_CBC_encrypt(&ctx, test->nblocks, ciphered, plain);
AES128_CBC_init(&ctx, key, iv);
AES128_CBC_decrypt(&ctx, test->nblocks, deciphered, cipher);
break;
}
case 192: {
AES192_CBC_ctx ctx;
from_hex(key, 24, test->key);
AES192_CBC_init(&ctx, key, iv);
AES192_CBC_encrypt(&ctx, test->nblocks, ciphered, plain);
AES192_CBC_init(&ctx, key, iv);
AES192_CBC_decrypt(&ctx, test->nblocks, deciphered, cipher);
break;
}
case 256: {
AES256_CBC_ctx ctx;
from_hex(key, 32, test->key);
AES256_CBC_init(&ctx, key, iv);
AES256_CBC_encrypt(&ctx, test->nblocks, ciphered, plain);
AES256_CBC_init(&ctx, key, iv);
AES256_CBC_decrypt(&ctx, test->nblocks, deciphered, cipher);
break;
}
}
if (memcmp(cipher, ciphered, test->nblocks * 16)) {
fprintf(stderr, "E(key=\"%s\", plain=\"%s\") != \"%s\"\n", test->key, test->plain, test->cipher);
fail++;
}
if (memcmp(plain, deciphered, test->nblocks * 16)) {
fprintf(stderr, "D(key=\"%s\", cipher=\"%s\") != \"%s\"\n", test->key, test->cipher, test->plain);
fail++;
}
}
if (fail == 0) {
fprintf(stderr, "All tests successful\n");
} else {
fprintf(stderr, "%i tests failed\n", fail);
}
return (fail != 0);
}