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1 /* | 1 /* |
2 * aes_calc.c | 2 * aes_calc.c |
3 * | 3 * |
4 * A simple AES calculator for generating AES encryption values | 4 * A simple AES calculator for generating AES encryption values |
5 * | 5 * |
6 * David A. McGrew | 6 * David A. McGrew |
7 * Cisco Systems, Inc. | 7 * Cisco Systems, Inc. |
8 */ | 8 */ |
9 /* | |
10 * | |
11 * Copyright (c) 2001-2006, Cisco Systems, Inc. | |
12 * All rights reserved. | |
13 * | |
14 * Redistribution and use in source and binary forms, with or without | |
15 * modification, are permitted provided that the following conditions | |
16 * are met: | |
17 * | |
18 * Redistributions of source code must retain the above copyright | |
19 * notice, this list of conditions and the following disclaimer. | |
20 * | |
21 * Redistributions in binary form must reproduce the above | |
22 * copyright notice, this list of conditions and the following | |
23 * disclaimer in the documentation and/or other materials provided | |
24 * with the distribution. | |
25 * | |
26 * Neither the name of the Cisco Systems, Inc. nor the names of its | |
27 * contributors may be used to endorse or promote products derived | |
28 * from this software without specific prior written permission. | |
29 * | |
30 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
31 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
32 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
33 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
34 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | |
35 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
36 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
37 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
40 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
41 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
42 * | |
43 */ | |
44 | 9 |
45 /* | 10 /* |
46 | 11 |
47 Example usage (with first NIST FIPS 197 test case): | 12 Example usage (with first NIST FIPS 197 test case): |
48 | 13 |
49 [sh]$ test/aes_calc 000102030405060708090a0b0c0d0e0f 00112233445566778899aabbccd
deeff -v | 14 [sh]$ test/aes_calc 000102030405060708090a0b0c0d0e0f 00112233445566778899aabbccd
deeff -v |
50 plaintext: 00112233445566778899aabbccddeeff | 15 plaintext: 00112233445566778899aabbccddeeff |
51 key: 000102030405060708090a0b0c0d0e0f | 16 key: 000102030405060708090a0b0c0d0e0f |
52 ciphertext: 69c4e0d86a7b0430d8cdb78070b4c55a | 17 ciphertext: 69c4e0d86a7b0430d8cdb78070b4c55a |
53 | 18 |
54 */ | 19 */ |
55 | 20 |
| 21 #ifdef HAVE_CONFIG_H |
| 22 #include <config.h> |
| 23 #endif |
| 24 |
56 #include "aes.h" | 25 #include "aes.h" |
57 #include <stdio.h> | 26 #include <stdio.h> |
58 #include <string.h> | 27 #include <string.h> |
59 | 28 |
60 void | 29 void |
61 usage(char *prog_name) { | 30 usage(char *prog_name) { |
62 printf("usage: %s <key> <plaintext> [-v]\n", prog_name); | 31 printf("usage: %s <key> <plaintext> [-v]\n", prog_name); |
63 exit(255); | 32 exit(255); |
64 } | 33 } |
65 | 34 |
66 #define AES_MAX_KEY_LEN 32 | 35 #define AES_MAX_KEY_LEN 32 |
67 | 36 |
68 int | 37 int |
69 main (int argc, char *argv[]) { | 38 main (int argc, char *argv[]) { |
70 v128_t data; | 39 v128_t data; |
71 uint8_t key[AES_MAX_KEY_LEN]; | 40 uint8_t key[AES_MAX_KEY_LEN]; |
72 aes_expanded_key_t exp_key; | 41 aes_expanded_key_t exp_key; |
73 int key_len, len; | 42 int key_len, len; |
74 int verbose; | 43 int verbose = 0; |
75 err_status_t status; | 44 err_status_t status; |
76 | 45 |
77 if (argc == 3) { | 46 if (argc == 3) { |
78 /* we're not in verbose mode */ | 47 /* we're not in verbose mode */ |
79 verbose = 0; | 48 verbose = 0; |
80 } else if (argc == 4) { | 49 } else if (argc == 4) { |
81 if (strncmp(argv[3], "-v", 2) == 0) { | 50 if (strncmp(argv[3], "-v", 2) == 0) { |
82 /* we're in verbose mode */ | 51 /* we're in verbose mode */ |
83 verbose = 1; | 52 verbose = 1; |
84 } else { | 53 } else { |
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145 /* write ciphertext to output */ | 114 /* write ciphertext to output */ |
146 if (verbose) { | 115 if (verbose) { |
147 printf("key:\t\t%s\n", octet_string_hex_string(key, key_len)); | 116 printf("key:\t\t%s\n", octet_string_hex_string(key, key_len)); |
148 printf("ciphertext:\t"); | 117 printf("ciphertext:\t"); |
149 } | 118 } |
150 printf("%s\n", v128_hex_string(&data)); | 119 printf("%s\n", v128_hex_string(&data)); |
151 | 120 |
152 return 0; | 121 return 0; |
153 } | 122 } |
154 | 123 |
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