1 /* Copyright (c) 2015, Google Inc.
2 *
3 * Permission to use, copy, modify, and/or distribute this software for any
4 * purpose with or without fee is hereby granted, provided that the above
5 * copyright notice and this permission notice appear in all copies.
6 *
7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
14
15 #include <stdio.h>
16 #include <string.h>
17
18 #include <openssl/aes.h>
19 #include <openssl/crypto.h>
20
21
TestAES(const uint8_t * key,size_t key_len,const uint8_t plaintext[AES_BLOCK_SIZE],const uint8_t ciphertext[AES_BLOCK_SIZE])22 static bool TestAES(const uint8_t *key, size_t key_len,
23 const uint8_t plaintext[AES_BLOCK_SIZE],
24 const uint8_t ciphertext[AES_BLOCK_SIZE]) {
25 AES_KEY aes_key;
26 if (AES_set_encrypt_key(key, key_len * 8, &aes_key) != 0) {
27 fprintf(stderr, "AES_set_encrypt_key failed\n");
28 return false;
29 }
30
31 // Test encryption.
32 uint8_t block[AES_BLOCK_SIZE];
33 AES_encrypt(plaintext, block, &aes_key);
34 if (memcmp(block, ciphertext, AES_BLOCK_SIZE) != 0) {
35 fprintf(stderr, "AES_encrypt gave the wrong output\n");
36 return false;
37 }
38
39 // Test in-place encryption.
40 memcpy(block, plaintext, AES_BLOCK_SIZE);
41 AES_encrypt(block, block, &aes_key);
42 if (memcmp(block, ciphertext, AES_BLOCK_SIZE) != 0) {
43 fprintf(stderr, "AES_encrypt gave the wrong output\n");
44 return false;
45 }
46
47 if (AES_set_decrypt_key(key, key_len * 8, &aes_key) != 0) {
48 fprintf(stderr, "AES_set_decrypt_key failed\n");
49 return false;
50 }
51
52 // Test decryption.
53 AES_decrypt(ciphertext, block, &aes_key);
54 if (memcmp(block, plaintext, AES_BLOCK_SIZE) != 0) {
55 fprintf(stderr, "AES_decrypt gave the wrong output\n");
56 return false;
57 }
58
59 // Test in-place decryption.
60 memcpy(block, ciphertext, AES_BLOCK_SIZE);
61 AES_decrypt(block, block, &aes_key);
62 if (memcmp(block, plaintext, AES_BLOCK_SIZE) != 0) {
63 fprintf(stderr, "AES_decrypt gave the wrong output\n");
64 return false;
65 }
66 return true;
67 }
68
main()69 int main() {
70 CRYPTO_library_init();
71
72 // Test vectors from FIPS-197, Appendix C.
73 if (!TestAES((const uint8_t *)"\x00\x01\x02\x03\x04\x05\x06\x07"
74 "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
75 128 / 8,
76 (const uint8_t *)"\x00\x11\x22\x33\x44\x55\x66\x77"
77 "\x88\x99\xaa\xbb\xcc\xdd\xee\xff",
78 (const uint8_t *)"\x69\xc4\xe0\xd8\x6a\x7b\x04\x30"
79 "\xd8\xcd\xb7\x80\x70\xb4\xc5\x5a") ||
80 !TestAES((const uint8_t *)"\x00\x01\x02\x03\x04\x05\x06\x07"
81 "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
82 "\x10\x11\x12\x13\x14\x15\x16\x17",
83 192 / 8,
84 (const uint8_t *)"\x00\x11\x22\x33\x44\x55\x66\x77"
85 "\x88\x99\xaa\xbb\xcc\xdd\xee\xff",
86 (const uint8_t *)"\xdd\xa9\x7c\xa4\x86\x4c\xdf\xe0"
87 "\x6e\xaf\x70\xa0\xec\x0d\x71\x91") ||
88 !TestAES((const uint8_t *)"\x00\x01\x02\x03\x04\x05\x06\x07"
89 "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
90 "\x10\x11\x12\x13\x14\x15\x16\x17"
91 "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
92 256 / 8,
93 (const uint8_t *)"\x00\x11\x22\x33\x44\x55\x66\x77"
94 "\x88\x99\xaa\xbb\xcc\xdd\xee\xff",
95 (const uint8_t *)"\x8e\xa2\xb7\xca\x51\x67\x45\xbf"
96 "\xea\xfc\x49\x90\x4b\x49\x60\x89")) {
97 return false;
98 }
99
100 printf("PASS\n");
101 return 0;
102 }
103