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Deprecate the ECDSA and EV_KEY_METHOD functions.
[thirdparty/openssl.git] / test / sm2_internal_test.c
CommitLineData
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1/*
2 * Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
909f1a2e 4 * Licensed under the Apache License 2.0 (the "License"). You may not use
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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
8 */
9
579422c8
P
10/*
11 * Low level APIs are deprecated for public use, but still ok for internal use.
12 */
13#include "internal/deprecated.h"
14
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15#include <stdio.h>
16#include <stdlib.h>
17#include <string.h>
18
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>
25#include "testutil.h"
26
27#ifndef OPENSSL_NO_SM2
28
25f2138b 29# include "crypto/sm2.h"
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30
31static RAND_METHOD fake_rand;
32static const RAND_METHOD *saved_rand;
33
34static uint8_t *fake_rand_bytes = NULL;
35static size_t fake_rand_bytes_offset = 0;
f73164ca 36static size_t fake_rand_size = 0;
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37
38static int get_faked_bytes(unsigned char *buf, int num)
39{
40 int i;
41
42 if (fake_rand_bytes == NULL)
43 return saved_rand->bytes(buf, num);
44
f73164ca
BE
45 if (!TEST_size_t_le(fake_rand_bytes_offset + num, fake_rand_size))
46 return 0;
47
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MC
48 for (i = 0; i != num; ++i)
49 buf[i] = fake_rand_bytes[fake_rand_bytes_offset + i];
50 fake_rand_bytes_offset += num;
51 return 1;
52}
53
54static int start_fake_rand(const char *hex_bytes)
55{
56 /* save old rand method */
57 if (!TEST_ptr(saved_rand = RAND_get_rand_method()))
58 return 0;
59
60 fake_rand = *saved_rand;
61 /* use own random function */
62 fake_rand.bytes = get_faked_bytes;
63
64 fake_rand_bytes = OPENSSL_hexstr2buf(hex_bytes, NULL);
65 fake_rand_bytes_offset = 0;
f73164ca 66 fake_rand_size = strlen(hex_bytes) / 2;
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67
68 /* set new RAND_METHOD */
69 if (!TEST_true(RAND_set_rand_method(&fake_rand)))
70 return 0;
71 return 1;
72}
73
74static int restore_rand(void)
75{
76 OPENSSL_free(fake_rand_bytes);
77 fake_rand_bytes = NULL;
78 fake_rand_bytes_offset = 0;
79 if (!TEST_true(RAND_set_rand_method(saved_rand)))
80 return 0;
81 return 1;
82}
83
84static EC_GROUP *create_EC_group(const char *p_hex, const char *a_hex,
85 const char *b_hex, const char *x_hex,
86 const char *y_hex, const char *order_hex,
87 const char *cof_hex)
88{
89 BIGNUM *p = NULL;
90 BIGNUM *a = NULL;
91 BIGNUM *b = NULL;
92 BIGNUM *g_x = NULL;
93 BIGNUM *g_y = NULL;
94 BIGNUM *order = NULL;
95 BIGNUM *cof = NULL;
96 EC_POINT *generator = NULL;
97 EC_GROUP *group = NULL;
98 int ok = 0;
99
100 if (!TEST_true(BN_hex2bn(&p, p_hex))
101 || !TEST_true(BN_hex2bn(&a, a_hex))
102 || !TEST_true(BN_hex2bn(&b, b_hex)))
103 goto done;
104
105 group = EC_GROUP_new_curve_GFp(p, a, b, NULL);
106 if (!TEST_ptr(group))
107 goto done;
108
109 generator = EC_POINT_new(group);
110 if (!TEST_ptr(generator))
111 goto done;
112
113 if (!TEST_true(BN_hex2bn(&g_x, x_hex))
114 || !TEST_true(BN_hex2bn(&g_y, y_hex))
9cc570d4
MC
115 || !TEST_true(EC_POINT_set_affine_coordinates(group, generator, g_x,
116 g_y, NULL)))
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117 goto done;
118
119 if (!TEST_true(BN_hex2bn(&order, order_hex))
120 || !TEST_true(BN_hex2bn(&cof, cof_hex))
121 || !TEST_true(EC_GROUP_set_generator(group, generator, order, cof)))
122 goto done;
123
124 ok = 1;
125done:
126 BN_free(p);
127 BN_free(a);
128 BN_free(b);
129 BN_free(g_x);
130 BN_free(g_y);
131 EC_POINT_free(generator);
132 BN_free(order);
133 BN_free(cof);
134 if (!ok) {
135 EC_GROUP_free(group);
136 group = NULL;
137 }
138
139 return group;
140}
141
142static int test_sm2_crypt(const EC_GROUP *group,
143 const EVP_MD *digest,
144 const char *privkey_hex,
145 const char *message,
146 const char *k_hex, const char *ctext_hex)
147{
148 const size_t msg_len = strlen(message);
149 BIGNUM *priv = NULL;
150 EC_KEY *key = NULL;
151 EC_POINT *pt = NULL;
152 unsigned char *expected = OPENSSL_hexstr2buf(ctext_hex, NULL);
153 size_t ctext_len = 0;
154 size_t ptext_len = 0;
155 uint8_t *ctext = NULL;
156 uint8_t *recovered = NULL;
157 size_t recovered_len = msg_len;
158 int rc = 0;
159
160 if (!TEST_ptr(expected)
161 || !TEST_true(BN_hex2bn(&priv, privkey_hex)))
162 goto done;
163
164 key = EC_KEY_new();
165 if (!TEST_ptr(key)
166 || !TEST_true(EC_KEY_set_group(key, group))
167 || !TEST_true(EC_KEY_set_private_key(key, priv)))
168 goto done;
169
170 pt = EC_POINT_new(group);
171 if (!TEST_ptr(pt)
172 || !TEST_true(EC_POINT_mul(group, pt, priv, NULL, NULL, NULL))
173 || !TEST_true(EC_KEY_set_public_key(key, pt))
2167239a 174 || !TEST_true(sm2_ciphertext_size(key, digest, msg_len, &ctext_len)))
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175 goto done;
176
177 ctext = OPENSSL_zalloc(ctext_len);
178 if (!TEST_ptr(ctext))
179 goto done;
180
181 start_fake_rand(k_hex);
2167239a 182 if (!TEST_true(sm2_encrypt(key, digest, (const uint8_t *)message, msg_len,
f73164ca
BE
183 ctext, &ctext_len))
184 || !TEST_size_t_eq(fake_rand_bytes_offset, fake_rand_size)) {
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MC
185 restore_rand();
186 goto done;
187 }
188 restore_rand();
189
190 if (!TEST_mem_eq(ctext, ctext_len, expected, ctext_len))
191 goto done;
192
2167239a 193 if (!TEST_true(sm2_plaintext_size(key, digest, ctext_len, &ptext_len))
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MC
194 || !TEST_int_eq(ptext_len, msg_len))
195 goto done;
196
197 recovered = OPENSSL_zalloc(ptext_len);
198 if (!TEST_ptr(recovered)
2167239a 199 || !TEST_true(sm2_decrypt(key, digest, ctext, ctext_len, recovered, &recovered_len))
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MC
200 || !TEST_int_eq(recovered_len, msg_len)
201 || !TEST_mem_eq(recovered, recovered_len, message, msg_len))
202 goto done;
203
204 rc = 1;
205 done:
206 BN_free(priv);
207 EC_POINT_free(pt);
208 OPENSSL_free(ctext);
209 OPENSSL_free(recovered);
210 OPENSSL_free(expected);
211 EC_KEY_free(key);
212 return rc;
213}
214
215static int sm2_crypt_test(void)
216{
09fb65d5 217 int testresult = 0;
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218 EC_GROUP *test_group =
219 create_EC_group
220 ("8542D69E4C044F18E8B92435BF6FF7DE457283915C45517D722EDB8B08F1DFC3",
221 "787968B4FA32C3FD2417842E73BBFEFF2F3C848B6831D7E0EC65228B3937E498",
222 "63E4C6D3B23B0C849CF84241484BFE48F61D59A5B16BA06E6E12D1DA27C5249A",
223 "421DEBD61B62EAB6746434EBC3CC315E32220B3BADD50BDC4C4E6C147FEDD43D",
224 "0680512BCBB42C07D47349D2153B70C4E5D7FDFCBFA36EA1A85841B9E46E09A2",
225 "8542D69E4C044F18E8B92435BF6FF7DD297720630485628D5AE74EE7C32E79B7",
226 "1");
227
228 if (!TEST_ptr(test_group))
229 goto done;
230
231 if (!test_sm2_crypt(
232 test_group,
233 EVP_sm3(),
234 "1649AB77A00637BD5E2EFE283FBF353534AA7F7CB89463F208DDBC2920BB0DA0",
235 "encryption standard",
f73164ca
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236 "004C62EEFD6ECFC2B95B92FD6C3D9575148AFA17425546D49018E5388D49DD7B4F"
237 "0092e8ff62146873c258557548500ab2df2a365e0609ab67640a1f6d57d7b17820"
238 "008349312695a3e1d2f46905f39a766487f2432e95d6be0cb009fe8c69fd8825a7",
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MC
239 "307B0220245C26FB68B1DDDDB12C4B6BF9F2B6D5FE60A383B0D18D1C4144ABF1"
240 "7F6252E7022076CB9264C2A7E88E52B19903FDC47378F605E36811F5C07423A2"
241 "4B84400F01B804209C3D7360C30156FAB7C80A0276712DA9D8094A634B766D3A"
242 "285E07480653426D0413650053A89B41C418B0C3AAD00D886C00286467"))
243 goto done;
244
245 /* Same test as above except using SHA-256 instead of SM3 */
246 if (!test_sm2_crypt(
247 test_group,
248 EVP_sha256(),
249 "1649AB77A00637BD5E2EFE283FBF353534AA7F7CB89463F208DDBC2920BB0DA0",
250 "encryption standard",
f73164ca
BE
251 "004C62EEFD6ECFC2B95B92FD6C3D9575148AFA17425546D49018E5388D49DD7B4F"
252 "003da18008784352192d70f22c26c243174a447ba272fec64163dd4742bae8bc98"
253 "00df17605cf304e9dd1dfeb90c015e93b393a6f046792f790a6fa4228af67d9588",
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254 "307B0220245C26FB68B1DDDDB12C4B6BF9F2B6D5FE60A383B0D18D1C4144ABF17F"
255 "6252E7022076CB9264C2A7E88E52B19903FDC47378F605E36811F5C07423A24B84"
256 "400F01B80420BE89139D07853100EFA763F60CBE30099EA3DF7F8F364F9D10A5E9"
257 "88E3C5AAFC0413229E6C9AEE2BB92CAD649FE2C035689785DA33"))
258 goto done;
259
260 testresult = 1;
261 done:
262 EC_GROUP_free(test_group);
263
264 return testresult;
265}
266
267static int test_sm2_sign(const EC_GROUP *group,
268 const char *userid,
269 const char *privkey_hex,
270 const char *message,
271 const char *k_hex,
272 const char *r_hex,
273 const char *s_hex)
274{
275 const size_t msg_len = strlen(message);
276 int ok = 0;
277 BIGNUM *priv = NULL;
278 EC_POINT *pt = NULL;
279 EC_KEY *key = NULL;
280 ECDSA_SIG *sig = NULL;
281 const BIGNUM *sig_r = NULL;
282 const BIGNUM *sig_s = NULL;
283 BIGNUM *r = NULL;
284 BIGNUM *s = NULL;
285
286 if (!TEST_true(BN_hex2bn(&priv, privkey_hex)))
287 goto done;
288
289 key = EC_KEY_new();
290 if (!TEST_ptr(key)
291 || !TEST_true(EC_KEY_set_group(key, group))
292 || !TEST_true(EC_KEY_set_private_key(key, priv)))
293 goto done;
294
295 pt = EC_POINT_new(group);
296 if (!TEST_ptr(pt)
297 || !TEST_true(EC_POINT_mul(group, pt, priv, NULL, NULL, NULL))
298 || !TEST_true(EC_KEY_set_public_key(key, pt)))
299 goto done;
300
301 start_fake_rand(k_hex);
00433bad
PY
302 sig = sm2_do_sign(key, EVP_sm3(), (const uint8_t *)userid, strlen(userid),
303 (const uint8_t *)message, msg_len);
f73164ca
BE
304 if (!TEST_ptr(sig)
305 || !TEST_size_t_eq(fake_rand_bytes_offset, fake_rand_size)) {
306 restore_rand();
e14d6cf6 307 goto done;
f73164ca
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308 }
309 restore_rand();
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MC
310
311 ECDSA_SIG_get0(sig, &sig_r, &sig_s);
312
313 if (!TEST_true(BN_hex2bn(&r, r_hex))
314 || !TEST_true(BN_hex2bn(&s, s_hex))
315 || !TEST_BN_eq(r, sig_r)
316 || !TEST_BN_eq(s, sig_s))
317 goto done;
318
00433bad
PY
319 ok = sm2_do_verify(key, EVP_sm3(), sig, (const uint8_t *)userid,
320 strlen(userid), (const uint8_t *)message, msg_len);
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321
322 /* We goto done whether this passes or fails */
323 TEST_true(ok);
324
325 done:
326 ECDSA_SIG_free(sig);
327 EC_POINT_free(pt);
328 EC_KEY_free(key);
329 BN_free(priv);
330 BN_free(r);
331 BN_free(s);
332
333 return ok;
334}
335
336static int sm2_sig_test(void)
337{
338 int testresult = 0;
339 /* From draft-shen-sm2-ecdsa-02 */
340 EC_GROUP *test_group =
341 create_EC_group
342 ("8542D69E4C044F18E8B92435BF6FF7DE457283915C45517D722EDB8B08F1DFC3",
343 "787968B4FA32C3FD2417842E73BBFEFF2F3C848B6831D7E0EC65228B3937E498",
344 "63E4C6D3B23B0C849CF84241484BFE48F61D59A5B16BA06E6E12D1DA27C5249A",
345 "421DEBD61B62EAB6746434EBC3CC315E32220B3BADD50BDC4C4E6C147FEDD43D",
346 "0680512BCBB42C07D47349D2153B70C4E5D7FDFCBFA36EA1A85841B9E46E09A2",
347 "8542D69E4C044F18E8B92435BF6FF7DD297720630485628D5AE74EE7C32E79B7",
348 "1");
349
350 if (!TEST_ptr(test_group))
351 goto done;
352
353 if (!TEST_true(test_sm2_sign(
354 test_group,
355 "ALICE123@YAHOO.COM",
356 "128B2FA8BD433C6C068C8D803DFF79792A519A55171B1B650C23661D15897263",
357 "message digest",
f73164ca
BE
358 "006CB28D99385C175C94F94E934817663FC176D925DD72B727260DBAAE1FB2F96F"
359 "007c47811054c6f99613a578eb8453706ccb96384fe7df5c171671e760bfa8be3a",
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MC
360 "40F1EC59F793D9F49E09DCEF49130D4194F79FB1EED2CAA55BACDB49C4E755D1",
361 "6FC6DAC32C5D5CF10C77DFB20F7C2EB667A457872FB09EC56327A67EC7DEEBE7")))
362 goto done;
363
364 testresult = 1;
365
366 done:
367 EC_GROUP_free(test_group);
368
369 return testresult;
370}
371
372#endif
373
374int setup_tests(void)
375{
376#ifdef OPENSSL_NO_SM2
377 TEST_note("SM2 is disabled.");
378#else
379 ADD_TEST(sm2_crypt_test);
380 ADD_TEST(sm2_sig_test);
381#endif
382 return 1;
383}