1 /* $OpenBSD: sm4test.c,v 1.1 2019/03/17 17:48:31 tb Exp $ */
2 /*
3 * Copyright (c) 2017, 2019 Ribose Inc
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include <err.h>
19 #include <stdio.h>
20 #include <string.h>
21
22 #include <openssl/sm4.h>
23
24 static void
hexdump(FILE * fp,const char * title,const uint8_t * buf,size_t len)25 hexdump(FILE *fp, const char *title, const uint8_t *buf, size_t len)
26 {
27 size_t i;
28
29 fprintf(fp, "%s:\n", title);
30 for (i = 1; i <= len; i++)
31 fprintf(fp, " 0x%02x,%s", buf[i - 1], (i % 8) ? "" : "\n");
32
33 if (i % 8 != 1)
34 fprintf(fp, "\n");
35 }
36
37 int
main(int argc,char * argv[])38 main(int argc, char *argv[])
39 {
40 int i;
41 SM4_KEY key;
42 uint8_t block[SM4_BLOCK_SIZE];
43
44 static const uint8_t k[SM4_BLOCK_SIZE] = {
45 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
46 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10
47 };
48
49 static const uint8_t input[SM4_BLOCK_SIZE] = {
50 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
51 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10
52 };
53
54 /*
55 * This test vector comes from Example 1 of GB/T 32907-2016,
56 * and described in Internet Draft draft-ribose-cfrg-sm4-02.
57 */
58 static const uint8_t expected[SM4_BLOCK_SIZE] = {
59 0x68, 0x1e, 0xdf, 0x34, 0xd2, 0x06, 0x96, 0x5e,
60 0x86, 0xb3, 0xe9, 0x4f, 0x53, 0x6e, 0x42, 0x46
61 };
62
63 /*
64 * This test vector comes from Example 2 from GB/T 32907-2016,
65 * and described in Internet Draft draft-ribose-cfrg-sm4-02.
66 * After 1,000,000 iterations.
67 */
68 static const uint8_t expected_iter[SM4_BLOCK_SIZE] = {
69 0x59, 0x52, 0x98, 0xc7, 0xc6, 0xfd, 0x27, 0x1f,
70 0x04, 0x02, 0xf8, 0x04, 0xc3, 0x3d, 0x3f, 0x66
71 };
72
73 if (!SM4_set_key(k, &key))
74 errx(1, "SM4_set_key() failed");
75
76 memcpy(block, input, SM4_BLOCK_SIZE);
77
78 SM4_encrypt(block, block, &key);
79
80 if (memcmp(block, expected, SM4_BLOCK_SIZE) != 0) {
81 fprintf(stderr, "FAIL: Encryption failed\n");
82 hexdump(stderr, "Got", block, SM4_BLOCK_SIZE);
83 hexdump(stderr, "Expected", expected, SM4_BLOCK_SIZE);
84 return 1;
85 }
86
87 for (i = 0; i < 999999; i++)
88 SM4_encrypt(block, block, &key);
89
90 if (memcmp(block, expected_iter, SM4_BLOCK_SIZE) != 0) {
91 fprintf(stderr, "FAIL: Multi-iteration encryption failed\n");
92 hexdump(stderr, "Got", block, SM4_BLOCK_SIZE);
93 hexdump(stderr, "Expected", expected_iter, SM4_BLOCK_SIZE);
94 return 1;
95 }
96
97 for (i = 0; i < 1000000; i++)
98 SM4_decrypt(block, block, &key);
99
100 if (memcmp(block, input, SM4_BLOCK_SIZE) != 0) {
101 fprintf(stderr, "FAIL: Decrypted data does not match input\n");
102 hexdump(stderr, "Got", block, SM4_BLOCK_SIZE);
103 hexdump(stderr, "Expected", input, SM4_BLOCK_SIZE);
104 return 1;
105 }
106
107 return 0;
108 }
109