2 * Copyright 2017-2020 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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
11 * Low level APIs are deprecated for public use, but still ok for internal use.
13 #include "internal/deprecated.h"
19 #include <openssl/bio.h>
20 #include <openssl/evp.h>
21 #include <openssl/bn.h>
22 #include <openssl/crypto.h>
23 #include <openssl/err.h>
24 #include <openssl/rand.h>
27 #ifndef OPENSSL_NO_SM2
29 # include "crypto/sm2.h"
31 static RAND_METHOD fake_rand;
32 static const RAND_METHOD *saved_rand;
34 static uint8_t *fake_rand_bytes = NULL;
35 static size_t fake_rand_bytes_offset = 0;
36 static size_t fake_rand_size = 0;
38 static int get_faked_bytes(unsigned char *buf, int num)
40 if (fake_rand_bytes == NULL)
41 return saved_rand->bytes(buf, num);
43 if (!TEST_size_t_gt(fake_rand_size, 0))
47 if (fake_rand_bytes_offset >= fake_rand_size)
48 fake_rand_bytes_offset = 0;
49 *buf++ = fake_rand_bytes[fake_rand_bytes_offset++];
55 static int start_fake_rand(const char *hex_bytes)
57 /* save old rand method */
58 if (!TEST_ptr(saved_rand = RAND_get_rand_method()))
61 fake_rand = *saved_rand;
62 /* use own random function */
63 fake_rand.bytes = get_faked_bytes;
65 fake_rand_bytes = OPENSSL_hexstr2buf(hex_bytes, NULL);
66 fake_rand_bytes_offset = 0;
67 fake_rand_size = strlen(hex_bytes) / 2;
69 /* set new RAND_METHOD */
70 if (!TEST_true(RAND_set_rand_method(&fake_rand)))
75 static int restore_rand(void)
77 OPENSSL_free(fake_rand_bytes);
78 fake_rand_bytes = NULL;
79 fake_rand_bytes_offset = 0;
80 if (!TEST_true(RAND_set_rand_method(saved_rand)))
85 static EC_GROUP *create_EC_group(const char *p_hex, const char *a_hex,
86 const char *b_hex, const char *x_hex,
87 const char *y_hex, const char *order_hex,
97 EC_POINT *generator = NULL;
98 EC_GROUP *group = NULL;
101 if (!TEST_true(BN_hex2bn(&p, p_hex))
102 || !TEST_true(BN_hex2bn(&a, a_hex))
103 || !TEST_true(BN_hex2bn(&b, b_hex)))
106 group = EC_GROUP_new_curve_GFp(p, a, b, NULL);
107 if (!TEST_ptr(group))
110 generator = EC_POINT_new(group);
111 if (!TEST_ptr(generator))
114 if (!TEST_true(BN_hex2bn(&g_x, x_hex))
115 || !TEST_true(BN_hex2bn(&g_y, y_hex))
116 || !TEST_true(EC_POINT_set_affine_coordinates(group, generator, g_x,
120 if (!TEST_true(BN_hex2bn(&order, order_hex))
121 || !TEST_true(BN_hex2bn(&cof, cof_hex))
122 || !TEST_true(EC_GROUP_set_generator(group, generator, order, cof)))
132 EC_POINT_free(generator);
136 EC_GROUP_free(group);
143 static int test_sm2_crypt(const EC_GROUP *group,
144 const EVP_MD *digest,
145 const char *privkey_hex,
147 const char *k_hex, const char *ctext_hex)
149 const size_t msg_len = strlen(message);
153 unsigned char *expected = OPENSSL_hexstr2buf(ctext_hex, NULL);
154 size_t ctext_len = 0;
155 size_t ptext_len = 0;
156 uint8_t *ctext = NULL;
157 uint8_t *recovered = NULL;
158 size_t recovered_len = msg_len;
161 if (!TEST_ptr(expected)
162 || !TEST_true(BN_hex2bn(&priv, privkey_hex)))
167 || !TEST_true(EC_KEY_set_group(key, group))
168 || !TEST_true(EC_KEY_set_private_key(key, priv)))
171 pt = EC_POINT_new(group);
173 || !TEST_true(EC_POINT_mul(group, pt, priv, NULL, NULL, NULL))
174 || !TEST_true(EC_KEY_set_public_key(key, pt))
175 || !TEST_true(sm2_ciphertext_size(key, digest, msg_len, &ctext_len)))
178 ctext = OPENSSL_zalloc(ctext_len);
179 if (!TEST_ptr(ctext))
182 start_fake_rand(k_hex);
183 if (!TEST_true(sm2_encrypt(key, digest, (const uint8_t *)message, msg_len,
184 ctext, &ctext_len))) {
190 if (!TEST_mem_eq(ctext, ctext_len, expected, ctext_len))
193 if (!TEST_true(sm2_plaintext_size(key, digest, ctext_len, &ptext_len))
194 || !TEST_int_eq(ptext_len, msg_len))
197 recovered = OPENSSL_zalloc(ptext_len);
198 if (!TEST_ptr(recovered)
199 || !TEST_true(sm2_decrypt(key, digest, ctext, ctext_len, recovered, &recovered_len))
200 || !TEST_int_eq(recovered_len, msg_len)
201 || !TEST_mem_eq(recovered, recovered_len, message, msg_len))
209 OPENSSL_free(recovered);
210 OPENSSL_free(expected);
215 static int sm2_crypt_test(void)
218 EC_GROUP *test_group =
220 ("8542D69E4C044F18E8B92435BF6FF7DE457283915C45517D722EDB8B08F1DFC3",
221 "787968B4FA32C3FD2417842E73BBFEFF2F3C848B6831D7E0EC65228B3937E498",
222 "63E4C6D3B23B0C849CF84241484BFE48F61D59A5B16BA06E6E12D1DA27C5249A",
223 "421DEBD61B62EAB6746434EBC3CC315E32220B3BADD50BDC4C4E6C147FEDD43D",
224 "0680512BCBB42C07D47349D2153B70C4E5D7FDFCBFA36EA1A85841B9E46E09A2",
225 "8542D69E4C044F18E8B92435BF6FF7DD297720630485628D5AE74EE7C32E79B7",
228 if (!TEST_ptr(test_group))
234 "1649AB77A00637BD5E2EFE283FBF353534AA7F7CB89463F208DDBC2920BB0DA0",
235 "encryption standard",
236 "004C62EEFD6ECFC2B95B92FD6C3D9575148AFA17425546D49018E5388D49DD7B4F"
237 "0092e8ff62146873c258557548500ab2df2a365e0609ab67640a1f6d57d7b17820"
238 "008349312695a3e1d2f46905f39a766487f2432e95d6be0cb009fe8c69fd8825a7",
239 "307B0220245C26FB68B1DDDDB12C4B6BF9F2B6D5FE60A383B0D18D1C4144ABF1"
240 "7F6252E7022076CB9264C2A7E88E52B19903FDC47378F605E36811F5C07423A2"
241 "4B84400F01B804209C3D7360C30156FAB7C80A0276712DA9D8094A634B766D3A"
242 "285E07480653426D0413650053A89B41C418B0C3AAD00D886C00286467"))
245 /* Same test as above except using SHA-256 instead of SM3 */
249 "1649AB77A00637BD5E2EFE283FBF353534AA7F7CB89463F208DDBC2920BB0DA0",
250 "encryption standard",
251 "004C62EEFD6ECFC2B95B92FD6C3D9575148AFA17425546D49018E5388D49DD7B4F"
252 "003da18008784352192d70f22c26c243174a447ba272fec64163dd4742bae8bc98"
253 "00df17605cf304e9dd1dfeb90c015e93b393a6f046792f790a6fa4228af67d9588",
254 "307B0220245C26FB68B1DDDDB12C4B6BF9F2B6D5FE60A383B0D18D1C4144ABF17F"
255 "6252E7022076CB9264C2A7E88E52B19903FDC47378F605E36811F5C07423A24B84"
256 "400F01B80420BE89139D07853100EFA763F60CBE30099EA3DF7F8F364F9D10A5E9"
257 "88E3C5AAFC0413229E6C9AEE2BB92CAD649FE2C035689785DA33"))
262 EC_GROUP_free(test_group);
267 static int test_sm2_sign(const EC_GROUP *group,
269 const char *privkey_hex,
275 const size_t msg_len = strlen(message);
280 ECDSA_SIG *sig = NULL;
281 const BIGNUM *sig_r = NULL;
282 const BIGNUM *sig_s = NULL;
286 if (!TEST_true(BN_hex2bn(&priv, privkey_hex)))
291 || !TEST_true(EC_KEY_set_group(key, group))
292 || !TEST_true(EC_KEY_set_private_key(key, priv)))
295 pt = EC_POINT_new(group);
297 || !TEST_true(EC_POINT_mul(group, pt, priv, NULL, NULL, NULL))
298 || !TEST_true(EC_KEY_set_public_key(key, pt)))
301 start_fake_rand(k_hex);
302 sig = sm2_do_sign(key, EVP_sm3(), (const uint8_t *)userid, strlen(userid),
303 (const uint8_t *)message, msg_len);
304 if (!TEST_ptr(sig)) {
310 ECDSA_SIG_get0(sig, &sig_r, &sig_s);
312 if (!TEST_true(BN_hex2bn(&r, r_hex))
313 || !TEST_true(BN_hex2bn(&s, s_hex))
314 || !TEST_BN_eq(r, sig_r)
315 || !TEST_BN_eq(s, sig_s))
318 ok = sm2_do_verify(key, EVP_sm3(), sig, (const uint8_t *)userid,
319 strlen(userid), (const uint8_t *)message, msg_len);
321 /* We goto done whether this passes or fails */
335 static int sm2_sig_test(void)
338 /* From draft-shen-sm2-ecdsa-02 */
339 EC_GROUP *test_group =
341 ("8542D69E4C044F18E8B92435BF6FF7DE457283915C45517D722EDB8B08F1DFC3",
342 "787968B4FA32C3FD2417842E73BBFEFF2F3C848B6831D7E0EC65228B3937E498",
343 "63E4C6D3B23B0C849CF84241484BFE48F61D59A5B16BA06E6E12D1DA27C5249A",
344 "421DEBD61B62EAB6746434EBC3CC315E32220B3BADD50BDC4C4E6C147FEDD43D",
345 "0680512BCBB42C07D47349D2153B70C4E5D7FDFCBFA36EA1A85841B9E46E09A2",
346 "8542D69E4C044F18E8B92435BF6FF7DD297720630485628D5AE74EE7C32E79B7",
349 if (!TEST_ptr(test_group))
352 if (!TEST_true(test_sm2_sign(
354 "ALICE123@YAHOO.COM",
355 "128B2FA8BD433C6C068C8D803DFF79792A519A55171B1B650C23661D15897263",
357 "006CB28D99385C175C94F94E934817663FC176D925DD72B727260DBAAE1FB2F96F"
358 "007c47811054c6f99613a578eb8453706ccb96384fe7df5c171671e760bfa8be3a",
359 "40F1EC59F793D9F49E09DCEF49130D4194F79FB1EED2CAA55BACDB49C4E755D1",
360 "6FC6DAC32C5D5CF10C77DFB20F7C2EB667A457872FB09EC56327A67EC7DEEBE7")))
366 EC_GROUP_free(test_group);
373 int setup_tests(void)
375 #ifdef OPENSSL_NO_SM2
376 TEST_note("SM2 is disabled.");
378 ADD_TEST(sm2_crypt_test);
379 ADD_TEST(sm2_sig_test);