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git.ipfire.org Git - thirdparty/openssl.git/blob - test/sm2_crypt_internal_test.c
2 * Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
14 #include <openssl/bio.h>
15 #include <openssl/evp.h>
16 #include <openssl/bn.h>
17 #include <openssl/crypto.h>
18 #include <openssl/err.h>
19 #include <openssl/rand.h>
22 #ifndef OPENSSL_NO_SM2
24 # include "internal/sm2.h"
26 static RAND_METHOD fake_rand
;
27 static const RAND_METHOD
*saved_rand
;
29 static uint8_t *fake_rand_bytes
= NULL
;
30 static size_t fake_rand_bytes_offset
= 0;
32 static int get_faked_bytes(unsigned char *buf
, int num
)
36 if (fake_rand_bytes
== NULL
)
37 return saved_rand
->bytes(buf
, num
);
39 for (i
= 0; i
!= num
; ++i
)
40 buf
[i
] = fake_rand_bytes
[fake_rand_bytes_offset
+ i
];
41 fake_rand_bytes_offset
+= num
;
45 static int start_fake_rand(const char *hex_bytes
)
47 /* save old rand method */
48 if (!TEST_ptr(saved_rand
= RAND_get_rand_method()))
51 fake_rand
= *saved_rand
;
52 /* use own random function */
53 fake_rand
.bytes
= get_faked_bytes
;
55 fake_rand_bytes
= OPENSSL_hexstr2buf(hex_bytes
, NULL
);
56 fake_rand_bytes_offset
= 0;
58 /* set new RAND_METHOD */
59 if (!TEST_true(RAND_set_rand_method(&fake_rand
)))
64 static int restore_rand(void)
66 OPENSSL_free(fake_rand_bytes
);
67 fake_rand_bytes
= NULL
;
68 fake_rand_bytes_offset
= 0;
69 if (!TEST_true(RAND_set_rand_method(saved_rand
)))
74 static EC_GROUP
*create_EC_group(const char *p_hex
, const char *a_hex
,
75 const char *b_hex
, const char *x_hex
,
76 const char *y_hex
, const char *order_hex
,
86 EC_POINT
*generator
= NULL
;
87 EC_GROUP
*group
= NULL
;
93 group
= EC_GROUP_new_curve_GFp(p
, a
, b
, NULL
);
101 generator
= EC_POINT_new(group
);
102 if (generator
== NULL
)
105 BN_hex2bn(&g_x
, x_hex
);
106 BN_hex2bn(&g_y
, y_hex
);
108 if (EC_POINT_set_affine_coordinates_GFp(group
, generator
, g_x
, g_y
, NULL
) ==
115 BN_hex2bn(&order
, order_hex
);
116 BN_hex2bn(&cof
, cof_hex
);
118 if (EC_GROUP_set_generator(group
, generator
, order
, cof
) == 0)
121 EC_POINT_free(generator
);
128 static int test_sm2(const EC_GROUP
*group
,
129 const EVP_MD
*digest
,
130 const char *privkey_hex
,
132 const char *k_hex
, const char *ctext_hex
)
134 const size_t msg_len
= strlen(message
);
139 unsigned char *expected
= OPENSSL_hexstr2buf(ctext_hex
, NULL
);
141 size_t ctext_len
= 0;
142 size_t ptext_len
= 0;
143 uint8_t *ctext
= NULL
;
144 uint8_t *recovered
= NULL
;
145 size_t recovered_len
= msg_len
;
149 BN_hex2bn(&priv
, privkey_hex
);
152 EC_KEY_set_group(key
, group
);
153 EC_KEY_set_private_key(key
, priv
);
155 pt
= EC_POINT_new(group
);
156 EC_POINT_mul(group
, pt
, priv
, NULL
, NULL
, NULL
);
158 EC_KEY_set_public_key(key
, pt
);
162 ctext_len
= SM2_ciphertext_size(key
, digest
, msg_len
);
163 ctext
= OPENSSL_zalloc(ctext_len
);
167 start_fake_rand(k_hex
);
168 rc
= SM2_encrypt(key
, digest
,
169 (const uint8_t *)message
, msg_len
, ctext
, &ctext_len
);
172 TEST_mem_eq(ctext
, ctext_len
, expected
, ctext_len
);
176 ptext_len
= SM2_plaintext_size(key
, digest
, ctext_len
);
178 TEST_int_eq(ptext_len
, msg_len
);
180 recovered
= OPENSSL_zalloc(ptext_len
);
181 if (recovered
== NULL
)
183 rc
= SM2_decrypt(key
, digest
, ctext
, ctext_len
, recovered
, &recovered_len
);
185 TEST_int_eq(recovered_len
, msg_len
);
186 TEST_mem_eq(recovered
, recovered_len
, message
, msg_len
);
194 OPENSSL_free(recovered
);
195 OPENSSL_free(expected
);
200 static int sm2_crypt_test(void)
203 EC_GROUP
*test_group
=
205 ("8542D69E4C044F18E8B92435BF6FF7DE457283915C45517D722EDB8B08F1DFC3",
206 "787968B4FA32C3FD2417842E73BBFEFF2F3C848B6831D7E0EC65228B3937E498",
207 "63E4C6D3B23B0C849CF84241484BFE48F61D59A5B16BA06E6E12D1DA27C5249A",
208 "421DEBD61B62EAB6746434EBC3CC315E32220B3BADD50BDC4C4E6C147FEDD43D",
209 "0680512BCBB42C07D47349D2153B70C4E5D7FDFCBFA36EA1A85841B9E46E09A2",
210 "8542D69E4C044F18E8B92435BF6FF7DD297720630485628D5AE74EE7C32E79B7",
213 if (test_group
== NULL
)
216 rc
= test_sm2(test_group
,
218 "1649AB77A00637BD5E2EFE283FBF353534AA7F7CB89463F208DDBC2920BB0DA0",
219 "encryption standard",
220 "004C62EEFD6ECFC2B95B92FD6C3D9575148AFA17425546D49018E5388D49DD7B4F",
221 "307B0220245C26FB68B1DDDDB12C4B6BF9F2B6D5FE60A383B0D18D1C4144ABF1"
222 "7F6252E7022076CB9264C2A7E88E52B19903FDC47378F605E36811F5C07423A2"
223 "4B84400F01B804209C3D7360C30156FAB7C80A0276712DA9D8094A634B766D3A"
224 "285E07480653426D0413650053A89B41C418B0C3AAD00D886C00286467");
229 /* Same test as above except using SHA-256 instead of SM3 */
230 rc
= test_sm2(test_group
,
232 "1649AB77A00637BD5E2EFE283FBF353534AA7F7CB89463F208DDBC2920BB0DA0",
233 "encryption standard",
234 "004C62EEFD6ECFC2B95B92FD6C3D9575148AFA17425546D49018E5388D49DD7B4F",
235 "307B0220245C26FB68B1DDDDB12C4B6BF9F2B6D5FE60A383B0D18D1C4144ABF17F6252E7022076CB9264C2A7E88E52B19903FDC47378F605E36811F5C07423A24B84400F01B80420BE89139D07853100EFA763F60CBE30099EA3DF7F8F364F9D10A5E988E3C5AAFC0413229E6C9AEE2BB92CAD649FE2C035689785DA33");
239 EC_GROUP_free(test_group
);
246 int setup_tests(void)
248 #ifdef OPENSSL_NO_SM2
249 TEST_note("SM2 is disabled.");
251 ADD_TEST(sm2_crypt_test
);