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Commit | Line | Data |
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d918d9d1 | 1 | /* |
e0edde6f | 2 | * Copyright (c) 2009, 2010 Nicira, Inc. |
d918d9d1 BP |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | #include <config.h> | |
18 | #include <ctype.h> | |
19 | #include "aes128.h" | |
20 | #include "util.h" | |
21 | ||
22 | static void | |
23 | hex_to_uint8(const char *input, uint8_t *output, size_t n) | |
24 | { | |
25 | size_t i; | |
26 | ||
27 | if (strlen(input) != n * 2) { | |
28 | goto error; | |
29 | } | |
30 | for (i = 0; i < n; i++) { | |
bf971267 | 31 | bool ok; |
d918d9d1 | 32 | |
bf971267 BP |
33 | output[i] = hexits_value(&input[i * 2], 2, &ok); |
34 | if (!ok) { | |
d918d9d1 BP |
35 | goto error; |
36 | } | |
d918d9d1 BP |
37 | } |
38 | return; | |
39 | ||
40 | error: | |
41 | ovs_fatal(0, "\"%s\" is not exactly %zu hex digits", input, n * 2); | |
42 | } | |
43 | ||
44 | int | |
45 | main(int argc, char *argv[]) | |
46 | { | |
47 | struct aes128 aes; | |
48 | uint8_t plaintext[16]; | |
49 | uint8_t ciphertext[16]; | |
50 | uint8_t key[16]; | |
51 | size_t i; | |
52 | ||
53 | if (argc != 3) { | |
54 | ovs_fatal(0, "usage: %s KEY PLAINTEXT, where KEY and PLAINTEXT each " | |
55 | "consist of 32 hex digits", argv[0]); | |
56 | } | |
57 | ||
58 | hex_to_uint8(argv[1], key, 16); | |
59 | hex_to_uint8(argv[2], plaintext, 16); | |
60 | ||
61 | aes128_schedule(&aes, key); | |
62 | aes128_encrypt(&aes, plaintext, ciphertext); | |
63 | for (i = 0; i < 16; i++) { | |
64 | printf("%02x", ciphertext[i]); | |
65 | } | |
66 | putchar('\n'); | |
67 | ||
68 | return 0; | |
69 | } |