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