| /* test/igetest.c -*- mode:C; c-file-style: "eay" -*- */ |
| /* ==================================================================== |
| * Copyright (c) 2006 The OpenSSL Project. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. All advertising materials mentioning features or use of this |
| * software must display the following acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" |
| * |
| * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| * endorse or promote products derived from this software without |
| * prior written permission. For written permission, please contact |
| * openssl-core@openssl.org. |
| * |
| * 5. Products derived from this software may not be called "OpenSSL" |
| * nor may "OpenSSL" appear in their names without prior written |
| * permission of the OpenSSL Project. |
| * |
| * 6. Redistributions of any form whatsoever must retain the following |
| * acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit (http://www.openssl.org/)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * ==================================================================== |
| * |
| */ |
| |
| #include <openssl/crypto.h> |
| #include <openssl/aes.h> |
| #include <openssl/rand.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <assert.h> |
| |
| #define TEST_SIZE 128 |
| #define BIG_TEST_SIZE 10240 |
| |
| static void hexdump(FILE *f, const char *title, const unsigned char *s, int l) |
| { |
| int n = 0; |
| |
| fprintf(f, "%s", title); |
| for (; n < l; ++n) { |
| if ((n % 16) == 0) |
| fprintf(f, "\n%04x", n); |
| fprintf(f, " %02x", s[n]); |
| } |
| fprintf(f, "\n"); |
| } |
| |
| #define MAX_VECTOR_SIZE 64 |
| |
| struct ige_test { |
| const unsigned char key[16]; |
| const unsigned char iv[32]; |
| const unsigned char in[MAX_VECTOR_SIZE]; |
| const unsigned char out[MAX_VECTOR_SIZE]; |
| const size_t length; |
| const int encrypt; |
| }; |
| |
| static struct ige_test const ige_test_vectors[] = { |
| {{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f}, /* key */ |
| {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, |
| 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, |
| 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f}, /* iv */ |
| {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* in */ |
| {0x1a, 0x85, 0x19, 0xa6, 0x55, 0x7b, 0xe6, 0x52, |
| 0xe9, 0xda, 0x8e, 0x43, 0xda, 0x4e, 0xf4, 0x45, |
| 0x3c, 0xf4, 0x56, 0xb4, 0xca, 0x48, 0x8a, 0xa3, |
| 0x83, 0xc7, 0x9c, 0x98, 0xb3, 0x47, 0x97, 0xcb}, /* out */ |
| 32, AES_ENCRYPT}, /* test vector 0 */ |
| |
| {{0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, |
| 0x61, 0x6e, 0x20, 0x69, 0x6d, 0x70, 0x6c, 0x65}, /* key */ |
| {0x6d, 0x65, 0x6e, 0x74, 0x61, 0x74, 0x69, 0x6f, |
| 0x6e, 0x20, 0x6f, 0x66, 0x20, 0x49, 0x47, 0x45, |
| 0x20, 0x6d, 0x6f, 0x64, 0x65, 0x20, 0x66, 0x6f, |
| 0x72, 0x20, 0x4f, 0x70, 0x65, 0x6e, 0x53, 0x53}, /* iv */ |
| {0x4c, 0x2e, 0x20, 0x4c, 0x65, 0x74, 0x27, 0x73, |
| 0x20, 0x68, 0x6f, 0x70, 0x65, 0x20, 0x42, 0x65, |
| 0x6e, 0x20, 0x67, 0x6f, 0x74, 0x20, 0x69, 0x74, |
| 0x20, 0x72, 0x69, 0x67, 0x68, 0x74, 0x21, 0x0a}, /* in */ |
| {0x99, 0x70, 0x64, 0x87, 0xa1, 0xcd, 0xe6, 0x13, |
| 0xbc, 0x6d, 0xe0, 0xb6, 0xf2, 0x4b, 0x1c, 0x7a, |
| 0xa4, 0x48, 0xc8, 0xb9, 0xc3, 0x40, 0x3e, 0x34, |
| 0x67, 0xa8, 0xca, 0xd8, 0x93, 0x40, 0xf5, 0x3b}, /* out */ |
| 32, AES_DECRYPT}, /* test vector 1 */ |
| }; |
| |
| struct bi_ige_test { |
| const unsigned char key1[32]; |
| const unsigned char key2[32]; |
| const unsigned char iv[64]; |
| const unsigned char in[MAX_VECTOR_SIZE]; |
| const unsigned char out[MAX_VECTOR_SIZE]; |
| const size_t keysize; |
| const size_t length; |
| const int encrypt; |
| }; |
| |
| static struct bi_ige_test const bi_ige_test_vectors[] = { |
| {{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f}, /* key1 */ |
| {0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, |
| 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f}, /* key2 */ |
| {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, |
| 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, |
| 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, |
| 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, |
| 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, |
| 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, |
| 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f}, /* iv */ |
| {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* in */ |
| {0x14, 0x40, 0x6f, 0xae, 0xa2, 0x79, 0xf2, 0x56, |
| 0x1f, 0x86, 0xeb, 0x3b, 0x7d, 0xff, 0x53, 0xdc, |
| 0x4e, 0x27, 0x0c, 0x03, 0xde, 0x7c, 0xe5, 0x16, |
| 0x6a, 0x9c, 0x20, 0x33, 0x9d, 0x33, 0xfe, 0x12}, /* out */ |
| 16, 32, AES_ENCRYPT}, /* test vector 0 */ |
| {{0x58, 0x0a, 0x06, 0xe9, 0x97, 0x07, 0x59, 0x5c, |
| 0x9e, 0x19, 0xd2, 0xa7, 0xbb, 0x40, 0x2b, 0x7a, |
| 0xc7, 0xd8, 0x11, 0x9e, 0x4c, 0x51, 0x35, 0x75, |
| 0x64, 0x28, 0x0f, 0x23, 0xad, 0x74, 0xac, 0x37}, /* key1 */ |
| {0xd1, 0x80, 0xa0, 0x31, 0x47, 0xa3, 0x11, 0x13, |
| 0x86, 0x26, 0x9e, 0x6d, 0xff, 0xaf, 0x72, 0x74, |
| 0x5b, 0xa2, 0x35, 0x81, 0xd2, 0xa6, 0x3d, 0x21, |
| 0x67, 0x7b, 0x58, 0xa8, 0x18, 0xf9, 0x72, 0xe4}, /* key2 */ |
| {0x80, 0x3d, 0xbd, 0x4c, 0xe6, 0x7b, 0x06, 0xa9, |
| 0x53, 0x35, 0xd5, 0x7e, 0x71, 0xc1, 0x70, 0x70, |
| 0x74, 0x9a, 0x00, 0x28, 0x0c, 0xbf, 0x6c, 0x42, |
| 0x9b, 0xa4, 0xdd, 0x65, 0x11, 0x77, 0x7c, 0x67, |
| 0xfe, 0x76, 0x0a, 0xf0, 0xd5, 0xc6, 0x6e, 0x6a, |
| 0xe7, 0x5e, 0x4c, 0xf2, 0x7e, 0x9e, 0xf9, 0x20, |
| 0x0e, 0x54, 0x6f, 0x2d, 0x8a, 0x8d, 0x7e, 0xbd, |
| 0x48, 0x79, 0x37, 0x99, 0xff, 0x27, 0x93, 0xa3}, /* iv */ |
| {0xf1, 0x54, 0x3d, 0xca, 0xfe, 0xb5, 0xef, 0x1c, |
| 0x4f, 0xa6, 0x43, 0xf6, 0xe6, 0x48, 0x57, 0xf0, |
| 0xee, 0x15, 0x7f, 0xe3, 0xe7, 0x2f, 0xd0, 0x2f, |
| 0x11, 0x95, 0x7a, 0x17, 0x00, 0xab, 0xa7, 0x0b, |
| 0xbe, 0x44, 0x09, 0x9c, 0xcd, 0xac, 0xa8, 0x52, |
| 0xa1, 0x8e, 0x7b, 0x75, 0xbc, 0xa4, 0x92, 0x5a, |
| 0xab, 0x46, 0xd3, 0x3a, 0xa0, 0xd5, 0x35, 0x1c, |
| 0x55, 0xa4, 0xb3, 0xa8, 0x40, 0x81, 0xa5, 0x0b}, /* in */ |
| {0x42, 0xe5, 0x28, 0x30, 0x31, 0xc2, 0xa0, 0x23, |
| 0x68, 0x49, 0x4e, 0xb3, 0x24, 0x59, 0x92, 0x79, |
| 0xc1, 0xa5, 0xcc, 0xe6, 0x76, 0x53, 0xb1, 0xcf, |
| 0x20, 0x86, 0x23, 0xe8, 0x72, 0x55, 0x99, 0x92, |
| 0x0d, 0x16, 0x1c, 0x5a, 0x2f, 0xce, 0xcb, 0x51, |
| 0xe2, 0x67, 0xfa, 0x10, 0xec, 0xcd, 0x3d, 0x67, |
| 0xa5, 0xe6, 0xf7, 0x31, 0x26, 0xb0, 0x0d, 0x76, |
| 0x5e, 0x28, 0xdc, 0x7f, 0x01, 0xc5, 0xa5, 0x4c}, /* out */ |
| 32, 64, AES_ENCRYPT}, /* test vector 1 */ |
| |
| }; |
| |
| static int run_test_vectors(void) |
| { |
| unsigned int n; |
| int errs = 0; |
| |
| for (n = 0; n < sizeof(ige_test_vectors) / sizeof(ige_test_vectors[0]); |
| ++n) { |
| const struct ige_test *const v = &ige_test_vectors[n]; |
| AES_KEY key; |
| unsigned char buf[MAX_VECTOR_SIZE]; |
| unsigned char iv[AES_BLOCK_SIZE * 2]; |
| |
| assert(v->length <= MAX_VECTOR_SIZE); |
| |
| if (v->encrypt == AES_ENCRYPT) |
| AES_set_encrypt_key(v->key, 8 * sizeof v->key, &key); |
| else |
| AES_set_decrypt_key(v->key, 8 * sizeof v->key, &key); |
| memcpy(iv, v->iv, sizeof iv); |
| AES_ige_encrypt(v->in, buf, v->length, &key, iv, v->encrypt); |
| |
| if (memcmp(v->out, buf, v->length)) { |
| printf("IGE test vector %d failed\n", n); |
| hexdump(stdout, "key", v->key, sizeof v->key); |
| hexdump(stdout, "iv", v->iv, sizeof v->iv); |
| hexdump(stdout, "in", v->in, v->length); |
| hexdump(stdout, "expected", v->out, v->length); |
| hexdump(stdout, "got", buf, v->length); |
| |
| ++errs; |
| } |
| |
| /* try with in == out */ |
| memcpy(iv, v->iv, sizeof iv); |
| memcpy(buf, v->in, v->length); |
| AES_ige_encrypt(buf, buf, v->length, &key, iv, v->encrypt); |
| |
| if (memcmp(v->out, buf, v->length)) { |
| printf("IGE test vector %d failed (with in == out)\n", n); |
| hexdump(stdout, "key", v->key, sizeof v->key); |
| hexdump(stdout, "iv", v->iv, sizeof v->iv); |
| hexdump(stdout, "in", v->in, v->length); |
| hexdump(stdout, "expected", v->out, v->length); |
| hexdump(stdout, "got", buf, v->length); |
| |
| ++errs; |
| } |
| } |
| |
| for (n = 0; |
| n < sizeof(bi_ige_test_vectors) / sizeof(bi_ige_test_vectors[0]); |
| ++n) { |
| const struct bi_ige_test *const v = &bi_ige_test_vectors[n]; |
| AES_KEY key1; |
| AES_KEY key2; |
| unsigned char buf[MAX_VECTOR_SIZE]; |
| |
| assert(v->length <= MAX_VECTOR_SIZE); |
| |
| if (v->encrypt == AES_ENCRYPT) { |
| AES_set_encrypt_key(v->key1, 8 * v->keysize, &key1); |
| AES_set_encrypt_key(v->key2, 8 * v->keysize, &key2); |
| } else { |
| AES_set_decrypt_key(v->key1, 8 * v->keysize, &key1); |
| AES_set_decrypt_key(v->key2, 8 * v->keysize, &key2); |
| } |
| |
| AES_bi_ige_encrypt(v->in, buf, v->length, &key1, &key2, v->iv, |
| v->encrypt); |
| |
| if (memcmp(v->out, buf, v->length)) { |
| printf("Bidirectional IGE test vector %d failed\n", n); |
| hexdump(stdout, "key 1", v->key1, sizeof v->key1); |
| hexdump(stdout, "key 2", v->key2, sizeof v->key2); |
| hexdump(stdout, "iv", v->iv, sizeof v->iv); |
| hexdump(stdout, "in", v->in, v->length); |
| hexdump(stdout, "expected", v->out, v->length); |
| hexdump(stdout, "got", buf, v->length); |
| |
| ++errs; |
| } |
| } |
| |
| return errs; |
| } |
| |
| int main(int argc, char **argv) |
| { |
| unsigned char rkey[16]; |
| unsigned char rkey2[16]; |
| AES_KEY key; |
| AES_KEY key2; |
| unsigned char plaintext[BIG_TEST_SIZE]; |
| unsigned char ciphertext[BIG_TEST_SIZE]; |
| unsigned char checktext[BIG_TEST_SIZE]; |
| unsigned char iv[AES_BLOCK_SIZE * 4]; |
| unsigned char saved_iv[AES_BLOCK_SIZE * 4]; |
| int err = 0; |
| unsigned int n; |
| unsigned matches; |
| |
| assert(BIG_TEST_SIZE >= TEST_SIZE); |
| |
| RAND_pseudo_bytes(rkey, sizeof rkey); |
| RAND_pseudo_bytes(plaintext, sizeof plaintext); |
| RAND_pseudo_bytes(iv, sizeof iv); |
| memcpy(saved_iv, iv, sizeof saved_iv); |
| |
| /* Forward IGE only... */ |
| |
| /* Straight encrypt/decrypt */ |
| AES_set_encrypt_key(rkey, 8 * sizeof rkey, &key); |
| AES_ige_encrypt(plaintext, ciphertext, TEST_SIZE, &key, iv, AES_ENCRYPT); |
| |
| AES_set_decrypt_key(rkey, 8 * sizeof rkey, &key); |
| memcpy(iv, saved_iv, sizeof iv); |
| AES_ige_encrypt(ciphertext, checktext, TEST_SIZE, &key, iv, AES_DECRYPT); |
| |
| if (memcmp(checktext, plaintext, TEST_SIZE)) { |
| printf("Encrypt+decrypt doesn't match\n"); |
| hexdump(stdout, "Plaintext", plaintext, TEST_SIZE); |
| hexdump(stdout, "Checktext", checktext, TEST_SIZE); |
| ++err; |
| } |
| |
| /* Now check encrypt chaining works */ |
| AES_set_encrypt_key(rkey, 8 * sizeof rkey, &key); |
| memcpy(iv, saved_iv, sizeof iv); |
| AES_ige_encrypt(plaintext, ciphertext, TEST_SIZE / 2, &key, iv, |
| AES_ENCRYPT); |
| AES_ige_encrypt(plaintext + TEST_SIZE / 2, |
| ciphertext + TEST_SIZE / 2, TEST_SIZE / 2, |
| &key, iv, AES_ENCRYPT); |
| |
| AES_set_decrypt_key(rkey, 8 * sizeof rkey, &key); |
| memcpy(iv, saved_iv, sizeof iv); |
| AES_ige_encrypt(ciphertext, checktext, TEST_SIZE, &key, iv, AES_DECRYPT); |
| |
| if (memcmp(checktext, plaintext, TEST_SIZE)) { |
| printf("Chained encrypt+decrypt doesn't match\n"); |
| hexdump(stdout, "Plaintext", plaintext, TEST_SIZE); |
| hexdump(stdout, "Checktext", checktext, TEST_SIZE); |
| ++err; |
| } |
| |
| /* And check decrypt chaining */ |
| AES_set_encrypt_key(rkey, 8 * sizeof rkey, &key); |
| memcpy(iv, saved_iv, sizeof iv); |
| AES_ige_encrypt(plaintext, ciphertext, TEST_SIZE / 2, &key, iv, |
| AES_ENCRYPT); |
| AES_ige_encrypt(plaintext + TEST_SIZE / 2, |
| ciphertext + TEST_SIZE / 2, TEST_SIZE / 2, |
| &key, iv, AES_ENCRYPT); |
| |
| AES_set_decrypt_key(rkey, 8 * sizeof rkey, &key); |
| memcpy(iv, saved_iv, sizeof iv); |
| AES_ige_encrypt(ciphertext, checktext, TEST_SIZE / 2, &key, iv, |
| AES_DECRYPT); |
| AES_ige_encrypt(ciphertext + TEST_SIZE / 2, |
| checktext + TEST_SIZE / 2, TEST_SIZE / 2, &key, iv, |
| AES_DECRYPT); |
| |
| if (memcmp(checktext, plaintext, TEST_SIZE)) { |
| printf("Chained encrypt+chained decrypt doesn't match\n"); |
| hexdump(stdout, "Plaintext", plaintext, TEST_SIZE); |
| hexdump(stdout, "Checktext", checktext, TEST_SIZE); |
| ++err; |
| } |
| |
| /* make sure garble extends forwards only */ |
| AES_set_encrypt_key(rkey, 8 * sizeof rkey, &key); |
| memcpy(iv, saved_iv, sizeof iv); |
| AES_ige_encrypt(plaintext, ciphertext, sizeof plaintext, &key, iv, |
| AES_ENCRYPT); |
| |
| /* corrupt halfway through */ |
| ++ciphertext[sizeof ciphertext / 2]; |
| AES_set_decrypt_key(rkey, 8 * sizeof rkey, &key); |
| memcpy(iv, saved_iv, sizeof iv); |
| AES_ige_encrypt(ciphertext, checktext, sizeof checktext, &key, iv, |
| AES_DECRYPT); |
| |
| matches = 0; |
| for (n = 0; n < sizeof checktext; ++n) |
| if (checktext[n] == plaintext[n]) |
| ++matches; |
| |
| if (matches > sizeof checktext / 2 + sizeof checktext / 100) { |
| printf("More than 51%% matches after garbling\n"); |
| ++err; |
| } |
| |
| if (matches < sizeof checktext / 2) { |
| printf("Garble extends backwards!\n"); |
| ++err; |
| } |
| |
| /* Bi-directional IGE */ |
| |
| /* |
| * Note that we don't have to recover the IV, because chaining isn't |
| */ |
| /* possible with biIGE, so the IV is not updated. */ |
| |
| RAND_pseudo_bytes(rkey2, sizeof rkey2); |
| |
| /* Straight encrypt/decrypt */ |
| AES_set_encrypt_key(rkey, 8 * sizeof rkey, &key); |
| AES_set_encrypt_key(rkey2, 8 * sizeof rkey2, &key2); |
| AES_bi_ige_encrypt(plaintext, ciphertext, TEST_SIZE, &key, &key2, iv, |
| AES_ENCRYPT); |
| |
| AES_set_decrypt_key(rkey, 8 * sizeof rkey, &key); |
| AES_set_decrypt_key(rkey2, 8 * sizeof rkey2, &key2); |
| AES_bi_ige_encrypt(ciphertext, checktext, TEST_SIZE, &key, &key2, iv, |
| AES_DECRYPT); |
| |
| if (memcmp(checktext, plaintext, TEST_SIZE)) { |
| printf("Encrypt+decrypt doesn't match\n"); |
| hexdump(stdout, "Plaintext", plaintext, TEST_SIZE); |
| hexdump(stdout, "Checktext", checktext, TEST_SIZE); |
| ++err; |
| } |
| |
| /* make sure garble extends both ways */ |
| AES_set_encrypt_key(rkey, 8 * sizeof rkey, &key); |
| AES_set_encrypt_key(rkey2, 8 * sizeof rkey2, &key2); |
| AES_ige_encrypt(plaintext, ciphertext, sizeof plaintext, &key, iv, |
| AES_ENCRYPT); |
| |
| /* corrupt halfway through */ |
| ++ciphertext[sizeof ciphertext / 2]; |
| AES_set_decrypt_key(rkey, 8 * sizeof rkey, &key); |
| AES_set_decrypt_key(rkey2, 8 * sizeof rkey2, &key2); |
| AES_ige_encrypt(ciphertext, checktext, sizeof checktext, &key, iv, |
| AES_DECRYPT); |
| |
| matches = 0; |
| for (n = 0; n < sizeof checktext; ++n) |
| if (checktext[n] == plaintext[n]) |
| ++matches; |
| |
| if (matches > sizeof checktext / 100) { |
| printf("More than 1%% matches after bidirectional garbling\n"); |
| ++err; |
| } |
| |
| /* make sure garble extends both ways (2) */ |
| AES_set_encrypt_key(rkey, 8 * sizeof rkey, &key); |
| AES_set_encrypt_key(rkey2, 8 * sizeof rkey2, &key2); |
| AES_ige_encrypt(plaintext, ciphertext, sizeof plaintext, &key, iv, |
| AES_ENCRYPT); |
| |
| /* corrupt right at the end */ |
| ++ciphertext[sizeof ciphertext - 1]; |
| AES_set_decrypt_key(rkey, 8 * sizeof rkey, &key); |
| AES_set_decrypt_key(rkey2, 8 * sizeof rkey2, &key2); |
| AES_ige_encrypt(ciphertext, checktext, sizeof checktext, &key, iv, |
| AES_DECRYPT); |
| |
| matches = 0; |
| for (n = 0; n < sizeof checktext; ++n) |
| if (checktext[n] == plaintext[n]) |
| ++matches; |
| |
| if (matches > sizeof checktext / 100) { |
| printf("More than 1%% matches after bidirectional garbling (2)\n"); |
| ++err; |
| } |
| |
| /* make sure garble extends both ways (3) */ |
| AES_set_encrypt_key(rkey, 8 * sizeof rkey, &key); |
| AES_set_encrypt_key(rkey2, 8 * sizeof rkey2, &key2); |
| AES_ige_encrypt(plaintext, ciphertext, sizeof plaintext, &key, iv, |
| AES_ENCRYPT); |
| |
| /* corrupt right at the start */ |
| ++ciphertext[0]; |
| AES_set_decrypt_key(rkey, 8 * sizeof rkey, &key); |
| AES_set_decrypt_key(rkey2, 8 * sizeof rkey2, &key2); |
| AES_ige_encrypt(ciphertext, checktext, sizeof checktext, &key, iv, |
| AES_DECRYPT); |
| |
| matches = 0; |
| for (n = 0; n < sizeof checktext; ++n) |
| if (checktext[n] == plaintext[n]) |
| ++matches; |
| |
| if (matches > sizeof checktext / 100) { |
| printf("More than 1%% matches after bidirectional garbling (3)\n"); |
| ++err; |
| } |
| |
| err += run_test_vectors(); |
| |
| return err; |
| } |
