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      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 
     22 static 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 
     80 int setup_tests(void)
     81 {
     82 #ifndef OPENSSL_NO_SM4
     83     ADD_TEST(test_sm4_ecb);
     84 #endif
     85     return 1;
     86 }
     87