1/*
2 * Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2017 Ribose Inc. All Rights Reserved.
4 *
5 * Licensed under the Apache License 2.0 (the "License").  You may not use
6 * this file except in compliance with the License.  You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
9 */
10
11/*
12 * Internal tests for the SM4 module.
13 */
14
15#include <string.h>
16#include <openssl/opensslconf.h>
17#include "testutil.h"
18
19#ifndef OPENSSL_NO_SM4
20# include "crypto/sm4.h"
21
22static int test_sm4_ecb(void)
23{
24    static const uint8_t k[SM4_BLOCK_SIZE] = {
25        0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
26        0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10
27    };
28
29    static const uint8_t input[SM4_BLOCK_SIZE] = {
30        0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
31        0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10
32    };
33
34    /*
35     * This test vector comes from Example 1 of GB/T 32907-2016,
36     * and described in Internet Draft draft-ribose-cfrg-sm4-02.
37     */
38    static const uint8_t expected[SM4_BLOCK_SIZE] = {
39        0x68, 0x1e, 0xdf, 0x34, 0xd2, 0x06, 0x96, 0x5e,
40        0x86, 0xb3, 0xe9, 0x4f, 0x53, 0x6e, 0x42, 0x46
41    };
42
43    /*
44     * This test vector comes from Example 2 from GB/T 32907-2016,
45     * and described in Internet Draft draft-ribose-cfrg-sm4-02.
46     * After 1,000,000 iterations.
47     */
48    static const uint8_t expected_iter[SM4_BLOCK_SIZE] = {
49        0x59, 0x52, 0x98, 0xc7, 0xc6, 0xfd, 0x27, 0x1f,
50        0x04, 0x02, 0xf8, 0x04, 0xc3, 0x3d, 0x3f, 0x66
51    };
52
53    int i;
54    SM4_KEY key;
55    uint8_t block[SM4_BLOCK_SIZE];
56
57    ossl_sm4_set_key(k, &key);
58    memcpy(block, input, SM4_BLOCK_SIZE);
59
60    ossl_sm4_encrypt(block, block, &key);
61    if (!TEST_mem_eq(block, SM4_BLOCK_SIZE, expected, SM4_BLOCK_SIZE))
62        return 0;
63
64    for (i = 0; i != 999999; ++i)
65        ossl_sm4_encrypt(block, block, &key);
66
67    if (!TEST_mem_eq(block, SM4_BLOCK_SIZE, expected_iter, SM4_BLOCK_SIZE))
68        return 0;
69
70    for (i = 0; i != 1000000; ++i)
71        ossl_sm4_decrypt(block, block, &key);
72
73    if (!TEST_mem_eq(block, SM4_BLOCK_SIZE, input, SM4_BLOCK_SIZE))
74        return 0;
75
76    return 1;
77}
78#endif
79
80int setup_tests(void)
81{
82#ifndef OPENSSL_NO_SM4
83    ADD_TEST(test_sm4_ecb);
84#endif
85    return 1;
86}
87