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Commit | Line | Data |
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440e5d80 | 1 | /* |
6738bf14 | 2 | * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
909f1a2e | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
440e5d80 RS |
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 | |
d02b48c6 | 8 | */ |
8d1ebff4 RS |
9 | #include <assert.h> |
10 | #include <errno.h> | |
d02b48c6 | 11 | #include <stdio.h> |
d02b48c6 | 12 | #include <string.h> |
8d1ebff4 | 13 | #include <ctype.h> |
17e3dd1c | 14 | |
ec577822 | 15 | #include <openssl/bn.h> |
8d1ebff4 | 16 | #include <openssl/crypto.h> |
ec577822 | 17 | #include <openssl/err.h> |
8d1ebff4 | 18 | #include <openssl/rand.h> |
2b1aa198 RL |
19 | #include "internal/nelem.h" |
20 | #include "internal/numbers.h" | |
8d1ebff4 | 21 | #include "testutil.h" |
d02b48c6 | 22 | |
2b1aa198 RL |
23 | #ifdef OPENSSL_SYS_WINDOWS |
24 | # define strcasecmp _stricmp | |
25 | #endif | |
8927c278 | 26 | |
8d1ebff4 RS |
27 | /* |
28 | * Things in boring, not in openssl. TODO we should add them. | |
29 | */ | |
30 | #define HAVE_BN_PADDED 0 | |
31 | #define HAVE_BN_SQRT 0 | |
0f113f3e | 32 | |
8d1ebff4 RS |
33 | typedef struct filetest_st { |
34 | const char *name; | |
35 | int (*func)(STANZA *s); | |
36 | } FILETEST; | |
0f113f3e | 37 | |
8d1ebff4 RS |
38 | typedef struct mpitest_st { |
39 | const char *base10; | |
40 | const char *mpi; | |
41 | size_t mpi_len; | |
42 | } MPITEST; | |
0f113f3e | 43 | |
8d1ebff4 RS |
44 | static const int NUM0 = 100; /* number of tests */ |
45 | static const int NUM1 = 50; /* additional tests for some functions */ | |
8d1ebff4 | 46 | static BN_CTX *ctx; |
0f113f3e | 47 | |
30bea14b RS |
48 | /* |
49 | * Polynomial coefficients used in GFM tests. | |
50 | */ | |
ed5c7ea2 | 51 | #ifndef OPENSSL_NO_EC2M |
30bea14b RS |
52 | static int p0[] = { 163, 7, 6, 3, 0, -1 }; |
53 | static int p1[] = { 193, 15, 0, -1 }; | |
ed5c7ea2 | 54 | #endif |
0f113f3e | 55 | |
8d1ebff4 RS |
56 | /* |
57 | * Look for |key| in the stanza and return it or NULL if not found. | |
58 | */ | |
59 | static const char *findattr(STANZA *s, const char *key) | |
60 | { | |
61 | int i = s->numpairs; | |
62 | PAIR *pp = s->pairs; | |
0f113f3e | 63 | |
8d1ebff4 RS |
64 | for ( ; --i >= 0; pp++) |
65 | if (strcasecmp(pp->key, key) == 0) | |
66 | return pp->value; | |
67 | return NULL; | |
68 | } | |
0f113f3e | 69 | |
4483fbae F |
70 | /* |
71 | * Parse BIGNUM from sparse hex-strings, return |BN_hex2bn| result. | |
72 | */ | |
73 | static int parse_bigBN(BIGNUM **out, const char *bn_strings[]) | |
74 | { | |
75 | char *bigstring = glue_strings(bn_strings, NULL); | |
76 | int ret = BN_hex2bn(out, bigstring); | |
77 | ||
78 | OPENSSL_free(bigstring); | |
79 | return ret; | |
80 | } | |
81 | ||
8d1ebff4 RS |
82 | /* |
83 | * Parse BIGNUM, return number of bytes parsed. | |
84 | */ | |
85 | static int parseBN(BIGNUM **out, const char *in) | |
86 | { | |
87 | *out = NULL; | |
88 | return BN_hex2bn(out, in); | |
89 | } | |
0f113f3e | 90 | |
8d1ebff4 RS |
91 | static int parsedecBN(BIGNUM **out, const char *in) |
92 | { | |
93 | *out = NULL; | |
94 | return BN_dec2bn(out, in); | |
95 | } | |
96a4c31b | 96 | |
8d1ebff4 RS |
97 | static BIGNUM *getBN(STANZA *s, const char *attribute) |
98 | { | |
99 | const char *hex; | |
100 | BIGNUM *ret = NULL; | |
8ff70f33 | 101 | |
8d1ebff4 | 102 | if ((hex = findattr(s, attribute)) == NULL) { |
ae269dd8 | 103 | TEST_error("%s:%d: Can't find %s", s->test_file, s->start, attribute); |
8d1ebff4 RS |
104 | return NULL; |
105 | } | |
0f113f3e | 106 | |
8d1ebff4 | 107 | if (parseBN(&ret, hex) != (int)strlen(hex)) { |
30bea14b | 108 | TEST_error("Could not decode '%s'", hex); |
8d1ebff4 RS |
109 | return NULL; |
110 | } | |
111 | return ret; | |
112 | } | |
0f113f3e | 113 | |
8d1ebff4 RS |
114 | static int getint(STANZA *s, int *out, const char *attribute) |
115 | { | |
30bea14b | 116 | BIGNUM *ret; |
8d1ebff4 RS |
117 | BN_ULONG word; |
118 | int st = 0; | |
0f113f3e | 119 | |
30bea14b RS |
120 | if (!TEST_ptr(ret = getBN(s, attribute)) |
121 | || !TEST_ulong_le(word = BN_get_word(ret), INT_MAX)) | |
0f113f3e | 122 | goto err; |
0f113f3e | 123 | |
8d1ebff4 RS |
124 | *out = (int)word; |
125 | st = 1; | |
126 | err: | |
127 | BN_free(ret); | |
128 | return st; | |
129 | } | |
0f113f3e | 130 | |
8d1ebff4 RS |
131 | static int equalBN(const char *op, const BIGNUM *expected, const BIGNUM *actual) |
132 | { | |
8d1ebff4 RS |
133 | if (BN_cmp(expected, actual) == 0) |
134 | return 1; | |
0f113f3e | 135 | |
dc352c19 P |
136 | TEST_error("unexpected %s value", op); |
137 | TEST_BN_eq(expected, actual); | |
8d1ebff4 | 138 | return 0; |
0f113f3e | 139 | } |
d02b48c6 | 140 | |
0f113f3e | 141 | |
8d1ebff4 RS |
142 | /* |
143 | * Return a "random" flag for if a BN should be negated. | |
144 | */ | |
145 | static int rand_neg(void) | |
146 | { | |
147 | static unsigned int neg = 0; | |
148 | static int sign[8] = { 0, 0, 0, 1, 1, 0, 1, 1 }; | |
0f113f3e | 149 | |
8d1ebff4 | 150 | return sign[(neg++) % 8]; |
0f113f3e | 151 | } |
d02b48c6 | 152 | |
8d1ebff4 | 153 | |
9e5b50b5 BB |
154 | static int test_swap(void) |
155 | { | |
156 | BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL; | |
157 | int top, cond, st = 0; | |
158 | ||
159 | if (!TEST_ptr(a = BN_new()) | |
160 | || !TEST_ptr(b = BN_new()) | |
161 | || !TEST_ptr(c = BN_new()) | |
162 | || !TEST_ptr(d = BN_new())) | |
163 | goto err; | |
164 | ||
165 | BN_bntest_rand(a, 1024, 1, 0); | |
166 | BN_bntest_rand(b, 1024, 1, 0); | |
167 | BN_copy(c, a); | |
168 | BN_copy(d, b); | |
169 | top = BN_num_bits(a)/BN_BITS2; | |
170 | ||
171 | /* regular swap */ | |
172 | BN_swap(a, b); | |
173 | if (!equalBN("swap", a, d) | |
174 | || !equalBN("swap", b, c)) | |
175 | goto err; | |
176 | ||
177 | /* conditional swap: true */ | |
178 | cond = 1; | |
179 | BN_consttime_swap(cond, a, b, top); | |
180 | if (!equalBN("cswap true", a, c) | |
181 | || !equalBN("cswap true", b, d)) | |
182 | goto err; | |
183 | ||
184 | /* conditional swap: false */ | |
185 | cond = 0; | |
186 | BN_consttime_swap(cond, a, b, top); | |
187 | if (!equalBN("cswap false", a, c) | |
188 | || !equalBN("cswap false", b, d)) | |
189 | goto err; | |
190 | ||
191 | /* same tests but checking flag swap */ | |
192 | BN_set_flags(a, BN_FLG_CONSTTIME); | |
193 | ||
194 | BN_swap(a, b); | |
195 | if (!equalBN("swap, flags", a, d) | |
196 | || !equalBN("swap, flags", b, c) | |
197 | || !TEST_true(BN_get_flags(b, BN_FLG_CONSTTIME)) | |
198 | || !TEST_false(BN_get_flags(a, BN_FLG_CONSTTIME))) | |
199 | goto err; | |
200 | ||
201 | cond = 1; | |
202 | BN_consttime_swap(cond, a, b, top); | |
203 | if (!equalBN("cswap true, flags", a, c) | |
204 | || !equalBN("cswap true, flags", b, d) | |
205 | || !TEST_true(BN_get_flags(a, BN_FLG_CONSTTIME)) | |
206 | || !TEST_false(BN_get_flags(b, BN_FLG_CONSTTIME))) | |
207 | goto err; | |
208 | ||
209 | cond = 0; | |
210 | BN_consttime_swap(cond, a, b, top); | |
211 | if (!equalBN("cswap false, flags", a, c) | |
212 | || !equalBN("cswap false, flags", b, d) | |
213 | || !TEST_true(BN_get_flags(a, BN_FLG_CONSTTIME)) | |
214 | || !TEST_false(BN_get_flags(b, BN_FLG_CONSTTIME))) | |
215 | goto err; | |
216 | ||
217 | st = 1; | |
218 | err: | |
219 | BN_free(a); | |
220 | BN_free(b); | |
221 | BN_free(c); | |
222 | BN_free(d); | |
223 | return st; | |
224 | } | |
225 | ||
31a80694 | 226 | static int test_sub(void) |
0f113f3e | 227 | { |
30bea14b RS |
228 | BIGNUM *a = NULL, *b = NULL, *c = NULL; |
229 | int i, st = 0; | |
0f113f3e | 230 | |
30bea14b RS |
231 | if (!TEST_ptr(a = BN_new()) |
232 | || !TEST_ptr(b = BN_new()) | |
233 | || !TEST_ptr(c = BN_new())) | |
234 | goto err; | |
0f113f3e | 235 | |
8d1ebff4 RS |
236 | for (i = 0; i < NUM0 + NUM1; i++) { |
237 | if (i < NUM1) { | |
0f113f3e MC |
238 | BN_bntest_rand(a, 512, 0, 0); |
239 | BN_copy(b, a); | |
30bea14b RS |
240 | if (!TEST_int_ne(BN_set_bit(a, i), 0)) |
241 | goto err; | |
0f113f3e MC |
242 | BN_add_word(b, i); |
243 | } else { | |
8d1ebff4 | 244 | BN_bntest_rand(b, 400 + i - NUM1, 0, 0); |
2b1aa198 RL |
245 | BN_set_negative(a, rand_neg()); |
246 | BN_set_negative(b, rand_neg()); | |
0f113f3e MC |
247 | } |
248 | BN_sub(c, a, b); | |
0f113f3e MC |
249 | BN_add(c, c, b); |
250 | BN_sub(c, c, a); | |
dc352c19 | 251 | if (!TEST_BN_eq_zero(c)) |
30bea14b | 252 | goto err; |
0f113f3e | 253 | } |
30bea14b RS |
254 | st = 1; |
255 | err: | |
0f113f3e MC |
256 | BN_free(a); |
257 | BN_free(b); | |
258 | BN_free(c); | |
30bea14b | 259 | return st; |
0f113f3e | 260 | } |
8169dd73 | 261 | |
cf9056cf | 262 | |
31a80694 | 263 | static int test_div_recip(void) |
0f113f3e | 264 | { |
30bea14b RS |
265 | BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL, *e = NULL; |
266 | BN_RECP_CTX *recp = NULL; | |
267 | int st = 0, i; | |
0f113f3e | 268 | |
30bea14b RS |
269 | if (!TEST_ptr(a = BN_new()) |
270 | || !TEST_ptr(b = BN_new()) | |
271 | || !TEST_ptr(c = BN_new()) | |
272 | || !TEST_ptr(d = BN_new()) | |
273 | || !TEST_ptr(e = BN_new()) | |
274 | || !TEST_ptr(recp = BN_RECP_CTX_new())) | |
275 | goto err; | |
0f113f3e | 276 | |
8d1ebff4 RS |
277 | for (i = 0; i < NUM0 + NUM1; i++) { |
278 | if (i < NUM1) { | |
0f113f3e MC |
279 | BN_bntest_rand(a, 400, 0, 0); |
280 | BN_copy(b, a); | |
281 | BN_lshift(a, a, i); | |
282 | BN_add_word(a, i); | |
283 | } else | |
8d1ebff4 | 284 | BN_bntest_rand(b, 50 + 3 * (i - NUM1), 0, 0); |
2b1aa198 RL |
285 | BN_set_negative(a, rand_neg()); |
286 | BN_set_negative(b, rand_neg()); | |
0f113f3e MC |
287 | BN_RECP_CTX_set(recp, b, ctx); |
288 | BN_div_recp(d, c, a, recp, ctx); | |
0f113f3e MC |
289 | BN_mul(e, d, b, ctx); |
290 | BN_add(d, e, c); | |
291 | BN_sub(d, d, a); | |
dc352c19 | 292 | if (!TEST_BN_eq_zero(d)) |
30bea14b | 293 | goto err; |
0f113f3e | 294 | } |
30bea14b RS |
295 | st = 1; |
296 | err: | |
0f113f3e MC |
297 | BN_free(a); |
298 | BN_free(b); | |
299 | BN_free(c); | |
300 | BN_free(d); | |
301 | BN_free(e); | |
302 | BN_RECP_CTX_free(recp); | |
30bea14b | 303 | return st; |
0f113f3e | 304 | } |
d02b48c6 | 305 | |
8d1ebff4 | 306 | |
31a80694 | 307 | static int test_mod(void) |
0f113f3e | 308 | { |
30bea14b RS |
309 | BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL, *e = NULL; |
310 | int st = 0, i; | |
0f113f3e | 311 | |
30bea14b RS |
312 | if (!TEST_ptr(a = BN_new()) |
313 | || !TEST_ptr(b = BN_new()) | |
314 | || !TEST_ptr(c = BN_new()) | |
315 | || !TEST_ptr(d = BN_new()) | |
316 | || !TEST_ptr(e = BN_new())) | |
317 | goto err; | |
0f113f3e | 318 | |
8d1ebff4 RS |
319 | BN_bntest_rand(a, 1024, 0, 0); |
320 | for (i = 0; i < NUM0; i++) { | |
321 | BN_bntest_rand(b, 450 + i * 10, 0, 0); | |
2b1aa198 RL |
322 | BN_set_negative(a, rand_neg()); |
323 | BN_set_negative(b, rand_neg()); | |
8d1ebff4 RS |
324 | BN_mod(c, a, b, ctx); |
325 | BN_div(d, e, a, b, ctx); | |
326 | BN_sub(e, e, c); | |
dc352c19 | 327 | if (!TEST_BN_eq_zero(e)) |
30bea14b | 328 | goto err; |
0f113f3e | 329 | } |
30bea14b RS |
330 | st = 1; |
331 | err: | |
0f113f3e MC |
332 | BN_free(a); |
333 | BN_free(b); | |
334 | BN_free(c); | |
335 | BN_free(d); | |
336 | BN_free(e); | |
30bea14b | 337 | return st; |
0f113f3e | 338 | } |
d02b48c6 | 339 | |
26a39fa9 RS |
340 | static const char *bn1strings[] = { |
341 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
342 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
343 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
344 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
345 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
346 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
347 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
348 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000000000FFFFFFFF00", | |
349 | "0000000000000000000000000000000000000000000000000000000000000000", | |
350 | "0000000000000000000000000000000000000000000000000000000000000000", | |
351 | "0000000000000000000000000000000000000000000000000000000000000000", | |
352 | "0000000000000000000000000000000000000000000000000000000000000000", | |
353 | "0000000000000000000000000000000000000000000000000000000000000000", | |
354 | "0000000000000000000000000000000000000000000000000000000000000000", | |
355 | "0000000000000000000000000000000000000000000000000000000000000000", | |
356 | "00000000000000000000000000000000000000000000000000FFFFFFFFFFFFFF", | |
357 | NULL | |
358 | }; | |
359 | ||
360 | static const char *bn2strings[] = { | |
361 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
362 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
363 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
364 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
365 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
366 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
367 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
368 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000000000FFFFFFFF0000000000", | |
369 | "0000000000000000000000000000000000000000000000000000000000000000", | |
370 | "0000000000000000000000000000000000000000000000000000000000000000", | |
371 | "0000000000000000000000000000000000000000000000000000000000000000", | |
372 | "0000000000000000000000000000000000000000000000000000000000000000", | |
373 | "0000000000000000000000000000000000000000000000000000000000000000", | |
374 | "0000000000000000000000000000000000000000000000000000000000000000", | |
375 | "0000000000000000000000000000000000000000000000000000000000000000", | |
376 | "000000000000000000000000000000000000000000FFFFFFFFFFFFFF00000000", | |
377 | NULL | |
378 | }; | |
379 | ||
8d1ebff4 RS |
380 | /* |
381 | * Test constant-time modular exponentiation with 1024-bit inputs, which on | |
382 | * x86_64 cause a different code branch to be taken. | |
383 | */ | |
31a80694 | 384 | static int test_modexp_mont5(void) |
0f113f3e | 385 | { |
30bea14b RS |
386 | BIGNUM *a = NULL, *p = NULL, *m = NULL, *d = NULL, *e = NULL; |
387 | BIGNUM *b = NULL, *n = NULL, *c = NULL; | |
388 | BN_MONT_CTX *mont = NULL; | |
30bea14b | 389 | int st = 0; |
0f113f3e | 390 | |
30bea14b RS |
391 | if (!TEST_ptr(a = BN_new()) |
392 | || !TEST_ptr(p = BN_new()) | |
393 | || !TEST_ptr(m = BN_new()) | |
394 | || !TEST_ptr(d = BN_new()) | |
395 | || !TEST_ptr(e = BN_new()) | |
396 | || !TEST_ptr(b = BN_new()) | |
397 | || !TEST_ptr(n = BN_new()) | |
398 | || !TEST_ptr(c = BN_new()) | |
399 | || !TEST_ptr(mont = BN_MONT_CTX_new())) | |
400 | goto err; | |
0f113f3e | 401 | |
8d1ebff4 RS |
402 | BN_bntest_rand(m, 1024, 0, 1); /* must be odd for montgomery */ |
403 | /* Zero exponent */ | |
404 | BN_bntest_rand(a, 1024, 0, 0); | |
405 | BN_zero(p); | |
30bea14b RS |
406 | if (!TEST_true(BN_mod_exp_mont_consttime(d, a, p, m, ctx, NULL))) |
407 | goto err; | |
dc352c19 | 408 | if (!TEST_BN_eq_one(d)) |
30bea14b | 409 | goto err; |
0f113f3e | 410 | |
8d1ebff4 | 411 | /* Regression test for carry bug in mulx4x_mont */ |
0f113f3e | 412 | BN_hex2bn(&a, |
8d1ebff4 RS |
413 | "7878787878787878787878787878787878787878787878787878787878787878" |
414 | "7878787878787878787878787878787878787878787878787878787878787878" | |
415 | "7878787878787878787878787878787878787878787878787878787878787878" | |
416 | "7878787878787878787878787878787878787878787878787878787878787878"); | |
417 | BN_hex2bn(&b, | |
418 | "095D72C08C097BA488C5E439C655A192EAFB6380073D8C2664668EDDB4060744" | |
419 | "E16E57FB4EDB9AE10A0CEFCDC28A894F689A128379DB279D48A2E20849D68593" | |
420 | "9B7803BCF46CEBF5C533FB0DD35B080593DE5472E3FE5DB951B8BFF9B4CB8F03" | |
421 | "9CC638A5EE8CDD703719F8000E6A9F63BEED5F2FCD52FF293EA05A251BB4AB81"); | |
422 | BN_hex2bn(&n, | |
423 | "D78AF684E71DB0C39CFF4E64FB9DB567132CB9C50CC98009FEB820B26F2DED9B" | |
424 | "91B9B5E2B83AE0AE4EB4E0523CA726BFBE969B89FD754F674CE99118C3F2D1C5" | |
425 | "D81FDC7C54E02B60262B241D53C040E99E45826ECA37A804668E690E1AFC1CA4" | |
426 | "2C9A15D84D4954425F0B7642FC0BD9D7B24E2618D2DCC9B729D944BADACFDDAF"); | |
427 | BN_MONT_CTX_set(mont, n, ctx); | |
428 | BN_mod_mul_montgomery(c, a, b, mont, ctx); | |
429 | BN_mod_mul_montgomery(d, b, a, mont, ctx); | |
dc352c19 | 430 | if (!TEST_BN_eq(c, d)) |
30bea14b | 431 | goto err; |
0f113f3e | 432 | |
3e7a4963 | 433 | /* Regression test for carry bug in sqr[x]8x_mont */ |
4483fbae F |
434 | parse_bigBN(&n, bn1strings); |
435 | parse_bigBN(&a, bn2strings); | |
26a39fa9 | 436 | BN_free(b); |
3e7a4963 AP |
437 | b = BN_dup(a); |
438 | BN_MONT_CTX_set(mont, n, ctx); | |
439 | BN_mod_mul_montgomery(c, a, a, mont, ctx); | |
440 | BN_mod_mul_montgomery(d, a, b, mont, ctx); | |
dc352c19 | 441 | if (!TEST_BN_eq(c, d)) |
30bea14b | 442 | goto err; |
3e7a4963 | 443 | |
420b88ce AP |
444 | /* Regression test for carry bug in bn_sqrx8x_internal */ |
445 | { | |
446 | static const char *ahex[] = { | |
447 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
448 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
449 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
450 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
451 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF8FFEADBCFC4DAE7FFF908E92820306B", | |
452 | "9544D954000000006C0000000000000000000000000000000000000000000000", | |
453 | "00000000000000000000FF030202FFFFF8FFEBDBCFC4DAE7FFF908E92820306B", | |
454 | "9544D954000000006C000000FF0302030000000000FFFFFFFFFFFFFFFFFFFFFF", | |
455 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF01FC00FF02FFFFFFFF", | |
456 | "00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00FCFD", | |
457 | "FCFFFFFFFFFF000000000000000000FF0302030000000000FFFFFFFFFFFFFFFF", | |
458 | "FF00FCFDFDFF030202FF00000000FFFFFFFFFFFFFFFFFF00FCFDFCFFFFFFFFFF", | |
459 | NULL | |
4483fbae | 460 | }; |
420b88ce AP |
461 | static const char *nhex[] = { |
462 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
463 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
464 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
465 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
466 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF8F8F8F8000000", | |
467 | "00000010000000006C0000000000000000000000000000000000000000000000", | |
468 | "00000000000000000000000000000000000000FFFFFFFFFFFFF8F8F8F8000000", | |
469 | "00000010000000006C000000000000000000000000FFFFFFFFFFFFFFFFFFFFFF", | |
470 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
471 | "00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
472 | "FFFFFFFFFFFF000000000000000000000000000000000000FFFFFFFFFFFFFFFF", | |
473 | "FFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
474 | NULL | |
4483fbae F |
475 | }; |
476 | ||
477 | parse_bigBN(&a, ahex); | |
478 | parse_bigBN(&n, nhex); | |
420b88ce AP |
479 | } |
480 | BN_free(b); | |
481 | b = BN_dup(a); | |
482 | BN_MONT_CTX_set(mont, n, ctx); | |
f91e026e BE |
483 | if (!TEST_true(BN_mod_mul_montgomery(c, a, a, mont, ctx)) |
484 | || !TEST_true(BN_mod_mul_montgomery(d, a, b, mont, ctx)) | |
485 | || !TEST_BN_eq(c, d)) | |
486 | goto err; | |
487 | ||
488 | /* Regression test for bug in BN_from_montgomery_word */ | |
489 | BN_hex2bn(&a, | |
490 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
491 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
492 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"); | |
493 | BN_hex2bn(&n, | |
494 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
495 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"); | |
496 | BN_MONT_CTX_set(mont, n, ctx); | |
497 | if (!TEST_false(BN_mod_mul_montgomery(d, a, a, mont, ctx))) | |
420b88ce AP |
498 | goto err; |
499 | ||
77d75993 AP |
500 | /* Regression test for bug in rsaz_1024_mul_avx2 */ |
501 | BN_hex2bn(&a, | |
502 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
503 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
504 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
505 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF2020202020DF"); | |
506 | BN_hex2bn(&b, | |
507 | "2020202020202020202020202020202020202020202020202020202020202020" | |
508 | "2020202020202020202020202020202020202020202020202020202020202020" | |
509 | "20202020202020FF202020202020202020202020202020202020202020202020" | |
510 | "2020202020202020202020202020202020202020202020202020202020202020"); | |
511 | BN_hex2bn(&n, | |
512 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
513 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
514 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
515 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF2020202020FF"); | |
516 | BN_MONT_CTX_set(mont, n, ctx); | |
517 | BN_mod_exp_mont_consttime(c, a, b, n, ctx, mont); | |
518 | BN_mod_exp_mont(d, a, b, n, ctx, mont); | |
519 | if (!TEST_BN_eq(c, d)) | |
520 | goto err; | |
521 | ||
3afd537a DB |
522 | /* |
523 | * rsaz_1024_mul_avx2 expects fully-reduced inputs. | |
524 | * BN_mod_exp_mont_consttime should reduce the input first. | |
525 | */ | |
526 | BN_hex2bn(&a, | |
527 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
528 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
529 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
530 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF2020202020DF"); | |
531 | BN_hex2bn(&b, | |
532 | "1FA53F26F8811C58BE0357897AA5E165693230BC9DF5F01DFA6A2D59229EC69D" | |
533 | "9DE6A89C36E3B6957B22D6FAAD5A3C73AE587B710DBE92E83D3A9A3339A085CB" | |
534 | "B58F508CA4F837924BB52CC1698B7FDC2FD74362456A595A5B58E38E38E38E38" | |
535 | "E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E"); | |
536 | BN_hex2bn(&n, | |
537 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
538 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
539 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
540 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF2020202020DF"); | |
541 | BN_MONT_CTX_set(mont, n, ctx); | |
542 | BN_mod_exp_mont_consttime(c, a, b, n, ctx, mont); | |
543 | BN_zero(d); | |
544 | if (!TEST_BN_eq(c, d)) | |
545 | goto err; | |
546 | ||
8d1ebff4 RS |
547 | /* Zero input */ |
548 | BN_bntest_rand(p, 1024, 0, 0); | |
549 | BN_zero(a); | |
30bea14b | 550 | if (!TEST_true(BN_mod_exp_mont_consttime(d, a, p, m, ctx, NULL)) |
dc352c19 | 551 | || !TEST_BN_eq_zero(d)) |
30bea14b RS |
552 | goto err; |
553 | ||
8d1ebff4 RS |
554 | /* |
555 | * Craft an input whose Montgomery representation is 1, i.e., shorter | |
556 | * than the modulus m, in order to test the const time precomputation | |
557 | * scattering/gathering. | |
558 | */ | |
559 | BN_one(a); | |
560 | BN_MONT_CTX_set(mont, m, ctx); | |
30bea14b RS |
561 | if (!TEST_true(BN_from_montgomery(e, a, mont, ctx)) |
562 | || !TEST_true(BN_mod_exp_mont_consttime(d, e, p, m, ctx, NULL)) | |
563 | || !TEST_true(BN_mod_exp_simple(a, e, p, m, ctx)) | |
dc352c19 | 564 | || !TEST_BN_eq(a, d)) |
30bea14b RS |
565 | goto err; |
566 | ||
8d1ebff4 RS |
567 | /* Finally, some regular test vectors. */ |
568 | BN_bntest_rand(e, 1024, 0, 0); | |
30bea14b RS |
569 | if (!TEST_true(BN_mod_exp_mont_consttime(d, e, p, m, ctx, NULL)) |
570 | || !TEST_true(BN_mod_exp_simple(a, e, p, m, ctx)) | |
dc352c19 | 571 | || !TEST_BN_eq(a, d)) |
30bea14b RS |
572 | goto err; |
573 | ||
574 | st = 1; | |
575 | ||
576 | err: | |
0f113f3e MC |
577 | BN_MONT_CTX_free(mont); |
578 | BN_free(a); | |
8d1ebff4 RS |
579 | BN_free(p); |
580 | BN_free(m); | |
0f113f3e | 581 | BN_free(d); |
8d1ebff4 RS |
582 | BN_free(e); |
583 | BN_free(b); | |
0f113f3e | 584 | BN_free(n); |
8d1ebff4 | 585 | BN_free(c); |
30bea14b | 586 | return st; |
0f113f3e | 587 | } |
d02b48c6 | 588 | |
8d1ebff4 | 589 | #ifndef OPENSSL_NO_EC2M |
31a80694 | 590 | static int test_gf2m_add(void) |
0f113f3e | 591 | { |
30bea14b | 592 | BIGNUM *a = NULL, *b = NULL, *c = NULL; |
8d1ebff4 | 593 | int i, st = 0; |
0f113f3e | 594 | |
30bea14b RS |
595 | if (!TEST_ptr(a = BN_new()) |
596 | || !TEST_ptr(b = BN_new()) | |
597 | || !TEST_ptr(c = BN_new())) | |
598 | goto err; | |
0f113f3e | 599 | |
8d1ebff4 RS |
600 | for (i = 0; i < NUM0; i++) { |
601 | BN_rand(a, 512, 0, 0); | |
602 | BN_copy(b, BN_value_one()); | |
2b1aa198 RL |
603 | BN_set_negative(a, rand_neg()); |
604 | BN_set_negative(b, rand_neg()); | |
8d1ebff4 RS |
605 | BN_GF2m_add(c, a, b); |
606 | /* Test that two added values have the correct parity. */ | |
30bea14b RS |
607 | if (!TEST_false((BN_is_odd(a) && BN_is_odd(c)) |
608 | || (!BN_is_odd(a) && !BN_is_odd(c)))) | |
8d1ebff4 | 609 | goto err; |
8d1ebff4 RS |
610 | BN_GF2m_add(c, c, c); |
611 | /* Test that c + c = 0. */ | |
dc352c19 | 612 | if (!TEST_BN_eq_zero(c)) |
8d1ebff4 | 613 | goto err; |
0f113f3e | 614 | } |
8d1ebff4 RS |
615 | st = 1; |
616 | err: | |
0f113f3e MC |
617 | BN_free(a); |
618 | BN_free(b); | |
619 | BN_free(c); | |
8d1ebff4 | 620 | return st; |
0f113f3e | 621 | } |
d02b48c6 | 622 | |
31a80694 | 623 | static int test_gf2m_mod(void) |
0f113f3e | 624 | { |
30bea14b | 625 | BIGNUM *a = NULL, *b[2] = {NULL,NULL}, *c = NULL, *d = NULL, *e = NULL; |
8d1ebff4 | 626 | int i, j, st = 0; |
0f113f3e | 627 | |
30bea14b RS |
628 | if (!TEST_ptr(a = BN_new()) |
629 | || !TEST_ptr(b[0] = BN_new()) | |
630 | || !TEST_ptr(b[1] = BN_new()) | |
631 | || !TEST_ptr(c = BN_new()) | |
632 | || !TEST_ptr(d = BN_new()) | |
633 | || !TEST_ptr(e = BN_new())) | |
634 | goto err; | |
0f113f3e | 635 | |
8d1ebff4 RS |
636 | BN_GF2m_arr2poly(p0, b[0]); |
637 | BN_GF2m_arr2poly(p1, b[1]); | |
0f113f3e | 638 | |
8d1ebff4 RS |
639 | for (i = 0; i < NUM0; i++) { |
640 | BN_bntest_rand(a, 1024, 0, 0); | |
641 | for (j = 0; j < 2; j++) { | |
642 | BN_GF2m_mod(c, a, b[j]); | |
643 | BN_GF2m_add(d, a, c); | |
644 | BN_GF2m_mod(e, d, b[j]); | |
645 | /* Test that a + (a mod p) mod p == 0. */ | |
dc352c19 | 646 | if (!TEST_BN_eq_zero(e)) |
8d1ebff4 | 647 | goto err; |
0f113f3e MC |
648 | } |
649 | } | |
8d1ebff4 RS |
650 | st = 1; |
651 | err: | |
0f113f3e | 652 | BN_free(a); |
8d1ebff4 RS |
653 | BN_free(b[0]); |
654 | BN_free(b[1]); | |
0f113f3e MC |
655 | BN_free(c); |
656 | BN_free(d); | |
657 | BN_free(e); | |
8d1ebff4 | 658 | return st; |
0f113f3e | 659 | } |
d02b48c6 | 660 | |
31a80694 | 661 | static int test_gf2m_mul(void) |
0f113f3e | 662 | { |
30bea14b RS |
663 | BIGNUM *a, *b[2] = {NULL, NULL}, *c = NULL, *d = NULL; |
664 | BIGNUM *e = NULL, *f = NULL, *g = NULL, *h = NULL; | |
8d1ebff4 | 665 | int i, j, st = 0; |
30bea14b RS |
666 | |
667 | if (!TEST_ptr(a = BN_new()) | |
668 | || !TEST_ptr(b[0] = BN_new()) | |
669 | || !TEST_ptr(b[1] = BN_new()) | |
670 | || !TEST_ptr(c = BN_new()) | |
671 | || !TEST_ptr(d = BN_new()) | |
672 | || !TEST_ptr(e = BN_new()) | |
673 | || !TEST_ptr(f = BN_new()) | |
674 | || !TEST_ptr(g = BN_new()) | |
675 | || !TEST_ptr(h = BN_new())) | |
676 | goto err; | |
0f113f3e | 677 | |
8d1ebff4 RS |
678 | BN_GF2m_arr2poly(p0, b[0]); |
679 | BN_GF2m_arr2poly(p1, b[1]); | |
0f113f3e | 680 | |
8d1ebff4 RS |
681 | for (i = 0; i < NUM0; i++) { |
682 | BN_bntest_rand(a, 1024, 0, 0); | |
683 | BN_bntest_rand(c, 1024, 0, 0); | |
684 | BN_bntest_rand(d, 1024, 0, 0); | |
685 | for (j = 0; j < 2; j++) { | |
686 | BN_GF2m_mod_mul(e, a, c, b[j], ctx); | |
687 | BN_GF2m_add(f, a, d); | |
688 | BN_GF2m_mod_mul(g, f, c, b[j], ctx); | |
689 | BN_GF2m_mod_mul(h, d, c, b[j], ctx); | |
690 | BN_GF2m_add(f, e, g); | |
691 | BN_GF2m_add(f, f, h); | |
692 | /* Test that (a+d)*c = a*c + d*c. */ | |
dc352c19 | 693 | if (!TEST_BN_eq_zero(f)) |
8d1ebff4 | 694 | goto err; |
0f113f3e | 695 | } |
29851264 | 696 | } |
8d1ebff4 | 697 | st = 1; |
30bea14b | 698 | |
8d1ebff4 | 699 | err: |
0f113f3e | 700 | BN_free(a); |
8d1ebff4 RS |
701 | BN_free(b[0]); |
702 | BN_free(b[1]); | |
0f113f3e MC |
703 | BN_free(c); |
704 | BN_free(d); | |
705 | BN_free(e); | |
8d1ebff4 RS |
706 | BN_free(f); |
707 | BN_free(g); | |
708 | BN_free(h); | |
709 | return st; | |
0f113f3e | 710 | } |
d02b48c6 | 711 | |
31a80694 | 712 | static int test_gf2m_sqr(void) |
0f113f3e | 713 | { |
30bea14b | 714 | BIGNUM *a = NULL, *b[2] = {NULL,NULL}, *c = NULL, *d = NULL; |
8d1ebff4 | 715 | int i, j, st = 0; |
0f113f3e | 716 | |
30bea14b RS |
717 | if (!TEST_ptr(a = BN_new()) |
718 | || !TEST_ptr(b[0] = BN_new()) | |
719 | || !TEST_ptr(b[1] = BN_new()) | |
720 | || !TEST_ptr(c = BN_new()) | |
721 | || !TEST_ptr(d = BN_new())) | |
722 | goto err; | |
a9009e51 | 723 | |
8d1ebff4 RS |
724 | BN_GF2m_arr2poly(p0, b[0]); |
725 | BN_GF2m_arr2poly(p1, b[1]); | |
0f113f3e | 726 | |
8d1ebff4 RS |
727 | for (i = 0; i < NUM0; i++) { |
728 | BN_bntest_rand(a, 1024, 0, 0); | |
729 | for (j = 0; j < 2; j++) { | |
730 | BN_GF2m_mod_sqr(c, a, b[j], ctx); | |
731 | BN_copy(d, a); | |
732 | BN_GF2m_mod_mul(d, a, d, b[j], ctx); | |
733 | BN_GF2m_add(d, c, d); | |
734 | /* Test that a*a = a^2. */ | |
dc352c19 | 735 | if (!TEST_BN_eq_zero(d)) |
8d1ebff4 | 736 | goto err; |
0f113f3e MC |
737 | } |
738 | } | |
8d1ebff4 RS |
739 | st = 1; |
740 | err: | |
0f113f3e | 741 | BN_free(a); |
8d1ebff4 RS |
742 | BN_free(b[0]); |
743 | BN_free(b[1]); | |
0f113f3e MC |
744 | BN_free(c); |
745 | BN_free(d); | |
8d1ebff4 | 746 | return st; |
0f113f3e MC |
747 | } |
748 | ||
31a80694 | 749 | static int test_gf2m_modinv(void) |
0f113f3e | 750 | { |
30bea14b | 751 | BIGNUM *a = NULL, *b[2] = {NULL,NULL}, *c = NULL, *d = NULL; |
8d1ebff4 | 752 | int i, j, st = 0; |
0f113f3e | 753 | |
30bea14b RS |
754 | if (!TEST_ptr(a = BN_new()) |
755 | || !TEST_ptr(b[0] = BN_new()) | |
756 | || !TEST_ptr(b[1] = BN_new()) | |
757 | || !TEST_ptr(c = BN_new()) | |
758 | || !TEST_ptr(d = BN_new())) | |
759 | goto err; | |
0f113f3e MC |
760 | |
761 | BN_GF2m_arr2poly(p0, b[0]); | |
762 | BN_GF2m_arr2poly(p1, b[1]); | |
763 | ||
8d1ebff4 | 764 | for (i = 0; i < NUM0; i++) { |
0f113f3e MC |
765 | BN_bntest_rand(a, 512, 0, 0); |
766 | for (j = 0; j < 2; j++) { | |
767 | BN_GF2m_mod_inv(c, a, b[j], ctx); | |
768 | BN_GF2m_mod_mul(d, a, c, b[j], ctx); | |
0f113f3e | 769 | /* Test that ((1/a)*a) = 1. */ |
dc352c19 | 770 | if (!TEST_BN_eq_one(d)) |
0f113f3e | 771 | goto err; |
0f113f3e MC |
772 | } |
773 | } | |
8d1ebff4 | 774 | st = 1; |
0f113f3e MC |
775 | err: |
776 | BN_free(a); | |
777 | BN_free(b[0]); | |
778 | BN_free(b[1]); | |
779 | BN_free(c); | |
780 | BN_free(d); | |
8d1ebff4 | 781 | return st; |
0f113f3e MC |
782 | } |
783 | ||
31a80694 | 784 | static int test_gf2m_moddiv(void) |
0f113f3e | 785 | { |
30bea14b RS |
786 | BIGNUM *a = NULL, *b[2] = {NULL,NULL}, *c = NULL, *d = NULL; |
787 | BIGNUM *e = NULL, *f = NULL; | |
8d1ebff4 | 788 | int i, j, st = 0; |
0f113f3e | 789 | |
30bea14b RS |
790 | if (!TEST_ptr(a = BN_new()) |
791 | || !TEST_ptr(b[0] = BN_new()) | |
792 | || !TEST_ptr(b[1] = BN_new()) | |
793 | || !TEST_ptr(c = BN_new()) | |
794 | || !TEST_ptr(d = BN_new()) | |
795 | || !TEST_ptr(e = BN_new()) | |
796 | || !TEST_ptr(f = BN_new())) | |
797 | goto err; | |
0f113f3e MC |
798 | |
799 | BN_GF2m_arr2poly(p0, b[0]); | |
800 | BN_GF2m_arr2poly(p1, b[1]); | |
801 | ||
8d1ebff4 | 802 | for (i = 0; i < NUM0; i++) { |
0f113f3e MC |
803 | BN_bntest_rand(a, 512, 0, 0); |
804 | BN_bntest_rand(c, 512, 0, 0); | |
805 | for (j = 0; j < 2; j++) { | |
806 | BN_GF2m_mod_div(d, a, c, b[j], ctx); | |
807 | BN_GF2m_mod_mul(e, d, c, b[j], ctx); | |
808 | BN_GF2m_mod_div(f, a, e, b[j], ctx); | |
0f113f3e | 809 | /* Test that ((a/c)*c)/a = 1. */ |
dc352c19 | 810 | if (!TEST_BN_eq_one(f)) |
0f113f3e | 811 | goto err; |
0f113f3e MC |
812 | } |
813 | } | |
8d1ebff4 | 814 | st = 1; |
0f113f3e MC |
815 | err: |
816 | BN_free(a); | |
817 | BN_free(b[0]); | |
818 | BN_free(b[1]); | |
819 | BN_free(c); | |
820 | BN_free(d); | |
821 | BN_free(e); | |
822 | BN_free(f); | |
8d1ebff4 | 823 | return st; |
0f113f3e MC |
824 | } |
825 | ||
31a80694 | 826 | static int test_gf2m_modexp(void) |
0f113f3e | 827 | { |
30bea14b RS |
828 | BIGNUM *a = NULL, *b[2] = {NULL,NULL}, *c = NULL, *d = NULL; |
829 | BIGNUM *e = NULL, *f = NULL; | |
8d1ebff4 | 830 | int i, j, st = 0; |
0f113f3e | 831 | |
30bea14b RS |
832 | if (!TEST_ptr(a = BN_new()) |
833 | || !TEST_ptr(b[0] = BN_new()) | |
834 | || !TEST_ptr(b[1] = BN_new()) | |
835 | || !TEST_ptr(c = BN_new()) | |
836 | || !TEST_ptr(d = BN_new()) | |
837 | || !TEST_ptr(e = BN_new()) | |
838 | || !TEST_ptr(f = BN_new())) | |
839 | goto err; | |
0f113f3e MC |
840 | |
841 | BN_GF2m_arr2poly(p0, b[0]); | |
842 | BN_GF2m_arr2poly(p1, b[1]); | |
843 | ||
8d1ebff4 | 844 | for (i = 0; i < NUM0; i++) { |
0f113f3e MC |
845 | BN_bntest_rand(a, 512, 0, 0); |
846 | BN_bntest_rand(c, 512, 0, 0); | |
847 | BN_bntest_rand(d, 512, 0, 0); | |
848 | for (j = 0; j < 2; j++) { | |
849 | BN_GF2m_mod_exp(e, a, c, b[j], ctx); | |
850 | BN_GF2m_mod_exp(f, a, d, b[j], ctx); | |
851 | BN_GF2m_mod_mul(e, e, f, b[j], ctx); | |
852 | BN_add(f, c, d); | |
853 | BN_GF2m_mod_exp(f, a, f, b[j], ctx); | |
0f113f3e MC |
854 | BN_GF2m_add(f, e, f); |
855 | /* Test that a^(c+d)=a^c*a^d. */ | |
dc352c19 | 856 | if (!TEST_BN_eq_zero(f)) |
0f113f3e | 857 | goto err; |
0f113f3e MC |
858 | } |
859 | } | |
8d1ebff4 | 860 | st = 1; |
0f113f3e MC |
861 | err: |
862 | BN_free(a); | |
863 | BN_free(b[0]); | |
864 | BN_free(b[1]); | |
865 | BN_free(c); | |
866 | BN_free(d); | |
867 | BN_free(e); | |
868 | BN_free(f); | |
8d1ebff4 | 869 | return st; |
0f113f3e MC |
870 | } |
871 | ||
31a80694 | 872 | static int test_gf2m_modsqrt(void) |
0f113f3e | 873 | { |
30bea14b RS |
874 | BIGNUM *a = NULL, *b[2] = {NULL,NULL}, *c = NULL, *d = NULL; |
875 | BIGNUM *e = NULL, *f = NULL; | |
8d1ebff4 | 876 | int i, j, st = 0; |
0f113f3e | 877 | |
30bea14b RS |
878 | if (!TEST_ptr(a = BN_new()) |
879 | || !TEST_ptr(b[0] = BN_new()) | |
880 | || !TEST_ptr(b[1] = BN_new()) | |
881 | || !TEST_ptr(c = BN_new()) | |
882 | || !TEST_ptr(d = BN_new()) | |
883 | || !TEST_ptr(e = BN_new()) | |
884 | || !TEST_ptr(f = BN_new())) | |
885 | goto err; | |
0f113f3e MC |
886 | |
887 | BN_GF2m_arr2poly(p0, b[0]); | |
888 | BN_GF2m_arr2poly(p1, b[1]); | |
889 | ||
8d1ebff4 | 890 | for (i = 0; i < NUM0; i++) { |
0f113f3e MC |
891 | BN_bntest_rand(a, 512, 0, 0); |
892 | for (j = 0; j < 2; j++) { | |
893 | BN_GF2m_mod(c, a, b[j]); | |
894 | BN_GF2m_mod_sqrt(d, a, b[j], ctx); | |
895 | BN_GF2m_mod_sqr(e, d, b[j], ctx); | |
0f113f3e MC |
896 | BN_GF2m_add(f, c, e); |
897 | /* Test that d^2 = a, where d = sqrt(a). */ | |
dc352c19 | 898 | if (!TEST_BN_eq_zero(f)) |
0f113f3e | 899 | goto err; |
0f113f3e MC |
900 | } |
901 | } | |
8d1ebff4 | 902 | st = 1; |
0f113f3e MC |
903 | err: |
904 | BN_free(a); | |
905 | BN_free(b[0]); | |
906 | BN_free(b[1]); | |
907 | BN_free(c); | |
908 | BN_free(d); | |
909 | BN_free(e); | |
910 | BN_free(f); | |
8d1ebff4 | 911 | return st; |
0f113f3e MC |
912 | } |
913 | ||
31a80694 | 914 | static int test_gf2m_modsolvequad(void) |
0f113f3e | 915 | { |
30bea14b RS |
916 | BIGNUM *a = NULL, *b[2] = {NULL,NULL}, *c = NULL, *d = NULL; |
917 | BIGNUM *e = NULL; | |
8d1ebff4 | 918 | int i, j, s = 0, t, st = 0; |
0f113f3e | 919 | |
30bea14b RS |
920 | if (!TEST_ptr(a = BN_new()) |
921 | || !TEST_ptr(b[0] = BN_new()) | |
922 | || !TEST_ptr(b[1] = BN_new()) | |
923 | || !TEST_ptr(c = BN_new()) | |
924 | || !TEST_ptr(d = BN_new()) | |
925 | || !TEST_ptr(e = BN_new())) | |
926 | goto err; | |
0f113f3e MC |
927 | |
928 | BN_GF2m_arr2poly(p0, b[0]); | |
929 | BN_GF2m_arr2poly(p1, b[1]); | |
930 | ||
8d1ebff4 | 931 | for (i = 0; i < NUM0; i++) { |
0f113f3e MC |
932 | BN_bntest_rand(a, 512, 0, 0); |
933 | for (j = 0; j < 2; j++) { | |
934 | t = BN_GF2m_mod_solve_quad(c, a, b[j], ctx); | |
935 | if (t) { | |
936 | s++; | |
937 | BN_GF2m_mod_sqr(d, c, b[j], ctx); | |
938 | BN_GF2m_add(d, c, d); | |
939 | BN_GF2m_mod(e, a, b[j]); | |
0f113f3e MC |
940 | BN_GF2m_add(e, e, d); |
941 | /* | |
942 | * Test that solution of quadratic c satisfies c^2 + c = a. | |
943 | */ | |
dc352c19 | 944 | if (!TEST_BN_eq_zero(e)) |
0f113f3e | 945 | goto err; |
0f113f3e MC |
946 | } |
947 | } | |
948 | } | |
30bea14b RS |
949 | if (!TEST_int_ge(s, 0)) { |
950 | TEST_info("%d tests found no roots; probably an error", NUM0); | |
0f113f3e MC |
951 | goto err; |
952 | } | |
8d1ebff4 | 953 | st = 1; |
0f113f3e MC |
954 | err: |
955 | BN_free(a); | |
956 | BN_free(b[0]); | |
957 | BN_free(b[1]); | |
958 | BN_free(c); | |
959 | BN_free(d); | |
960 | BN_free(e); | |
8d1ebff4 | 961 | return st; |
0f113f3e | 962 | } |
b3310161 | 963 | #endif |
8d1ebff4 | 964 | |
31a80694 | 965 | static int test_kronecker(void) |
0f113f3e | 966 | { |
30bea14b RS |
967 | BIGNUM *a = NULL, *b = NULL, *r = NULL, *t = NULL; |
968 | int i, legendre, kronecker, st = 0; | |
8d1ebff4 | 969 | |
30bea14b RS |
970 | if (!TEST_ptr(a = BN_new()) |
971 | || !TEST_ptr(b = BN_new()) | |
972 | || !TEST_ptr(r = BN_new()) | |
973 | || !TEST_ptr(t = BN_new())) | |
8d1ebff4 RS |
974 | goto err; |
975 | ||
976 | /* | |
977 | * We test BN_kronecker(a, b, ctx) just for b odd (Jacobi symbol). In | |
978 | * this case we know that if b is prime, then BN_kronecker(a, b, ctx) is | |
979 | * congruent to $a^{(b-1)/2}$, modulo $b$ (Legendre symbol). So we | |
980 | * generate a random prime b and compare these values for a number of | |
981 | * random a's. (That is, we run the Solovay-Strassen primality test to | |
982 | * confirm that b is prime, except that we don't want to test whether b | |
983 | * is prime but whether BN_kronecker works.) | |
984 | */ | |
985 | ||
30bea14b | 986 | if (!TEST_true(BN_generate_prime_ex(b, 512, 0, NULL, NULL, NULL))) |
8d1ebff4 | 987 | goto err; |
2b1aa198 | 988 | BN_set_negative(b, rand_neg()); |
8d1ebff4 RS |
989 | |
990 | for (i = 0; i < NUM0; i++) { | |
30bea14b | 991 | if (!TEST_true(BN_bntest_rand(a, 512, 0, 0))) |
8d1ebff4 | 992 | goto err; |
2b1aa198 | 993 | BN_set_negative(a, rand_neg()); |
8d1ebff4 RS |
994 | |
995 | /* t := (|b|-1)/2 (note that b is odd) */ | |
30bea14b | 996 | if (!TEST_true(BN_copy(t, b))) |
8d1ebff4 | 997 | goto err; |
2b1aa198 | 998 | BN_set_negative(t, 0); |
30bea14b | 999 | if (!TEST_true(BN_sub_word(t, 1))) |
8d1ebff4 | 1000 | goto err; |
30bea14b | 1001 | if (!TEST_true(BN_rshift1(t, t))) |
8d1ebff4 RS |
1002 | goto err; |
1003 | /* r := a^t mod b */ | |
2b1aa198 | 1004 | BN_set_negative(b, 0); |
8d1ebff4 | 1005 | |
30bea14b | 1006 | if (!TEST_true(BN_mod_exp_recp(r, a, t, b, ctx))) |
8d1ebff4 | 1007 | goto err; |
2b1aa198 | 1008 | BN_set_negative(b, 1); |
8d1ebff4 RS |
1009 | |
1010 | if (BN_is_word(r, 1)) | |
1011 | legendre = 1; | |
1012 | else if (BN_is_zero(r)) | |
1013 | legendre = 0; | |
1014 | else { | |
30bea14b | 1015 | if (!TEST_true(BN_add_word(r, 1))) |
8d1ebff4 | 1016 | goto err; |
30bea14b RS |
1017 | if (!TEST_int_eq(BN_ucmp(r, b), 0)) { |
1018 | TEST_info("Legendre symbol computation failed"); | |
8d1ebff4 RS |
1019 | goto err; |
1020 | } | |
1021 | legendre = -1; | |
1022 | } | |
1023 | ||
30bea14b | 1024 | if (!TEST_int_ge(kronecker = BN_kronecker(a, b, ctx), -1)) |
8d1ebff4 RS |
1025 | goto err; |
1026 | /* we actually need BN_kronecker(a, |b|) */ | |
2b1aa198 | 1027 | if (BN_is_negative(a) && BN_is_negative(b)) |
8d1ebff4 RS |
1028 | kronecker = -kronecker; |
1029 | ||
30bea14b | 1030 | if (!TEST_int_eq(legendre, kronecker)) |
8d1ebff4 | 1031 | goto err; |
8d1ebff4 RS |
1032 | } |
1033 | ||
1034 | st = 1; | |
1035 | err: | |
1036 | BN_free(a); | |
1037 | BN_free(b); | |
1038 | BN_free(r); | |
1039 | BN_free(t); | |
1040 | return st; | |
1041 | } | |
1042 | ||
1043 | static int file_sum(STANZA *s) | |
1044 | { | |
30bea14b | 1045 | BIGNUM *a = NULL, *b = NULL, *sum = NULL, *ret = NULL; |
8d1ebff4 RS |
1046 | BN_ULONG b_word; |
1047 | int st = 0; | |
1048 | ||
30bea14b RS |
1049 | if (!TEST_ptr(a = getBN(s, "A")) |
1050 | || !TEST_ptr(b = getBN(s, "B")) | |
1051 | || !TEST_ptr(sum = getBN(s, "Sum")) | |
1052 | || !TEST_ptr(ret = BN_new())) | |
8d1ebff4 RS |
1053 | goto err; |
1054 | ||
30bea14b | 1055 | if (!TEST_true(BN_add(ret, a, b)) |
8d1ebff4 | 1056 | || !equalBN("A + B", sum, ret) |
30bea14b | 1057 | || !TEST_true(BN_sub(ret, sum, a)) |
8d1ebff4 | 1058 | || !equalBN("Sum - A", b, ret) |
30bea14b | 1059 | || !TEST_true(BN_sub(ret, sum, b)) |
8d1ebff4 RS |
1060 | || !equalBN("Sum - B", a, ret)) |
1061 | goto err; | |
1062 | ||
1063 | /* | |
1064 | * Test that the functions work when |r| and |a| point to the same BIGNUM, | |
1065 | * or when |r| and |b| point to the same BIGNUM. | |
1066 | * TODO: Test where all of |r|, |a|, and |b| point to the same BIGNUM. | |
1067 | */ | |
30bea14b RS |
1068 | if (!TEST_true(BN_copy(ret, a)) |
1069 | || !TEST_true(BN_add(ret, ret, b)) | |
8d1ebff4 | 1070 | || !equalBN("A + B (r is a)", sum, ret) |
30bea14b RS |
1071 | || !TEST_true(BN_copy(ret, b)) |
1072 | || !TEST_true(BN_add(ret, a, ret)) | |
8d1ebff4 | 1073 | || !equalBN("A + B (r is b)", sum, ret) |
30bea14b RS |
1074 | || !TEST_true(BN_copy(ret, sum)) |
1075 | || !TEST_true(BN_sub(ret, ret, a)) | |
8d1ebff4 | 1076 | || !equalBN("Sum - A (r is a)", b, ret) |
30bea14b RS |
1077 | || !TEST_true(BN_copy(ret, a)) |
1078 | || !TEST_true(BN_sub(ret, sum, ret)) | |
8d1ebff4 | 1079 | || !equalBN("Sum - A (r is b)", b, ret) |
30bea14b RS |
1080 | || !TEST_true(BN_copy(ret, sum)) |
1081 | || !TEST_true(BN_sub(ret, ret, b)) | |
8d1ebff4 | 1082 | || !equalBN("Sum - B (r is a)", a, ret) |
30bea14b RS |
1083 | || !TEST_true(BN_copy(ret, b)) |
1084 | || !TEST_true(BN_sub(ret, sum, ret)) | |
8d1ebff4 RS |
1085 | || !equalBN("Sum - B (r is b)", a, ret)) |
1086 | goto err; | |
1087 | ||
1088 | /* | |
1089 | * Test BN_uadd() and BN_usub() with the prerequisites they are | |
1090 | * documented as having. Note that these functions are frequently used | |
1091 | * when the prerequisites don't hold. In those cases, they are supposed | |
1092 | * to work as if the prerequisite hold, but we don't test that yet. | |
1093 | * TODO: test that. | |
1094 | */ | |
1095 | if (!BN_is_negative(a) && !BN_is_negative(b) && BN_cmp(a, b) >= 0) { | |
30bea14b | 1096 | if (!TEST_true(BN_uadd(ret, a, b)) |
8d1ebff4 | 1097 | || !equalBN("A +u B", sum, ret) |
30bea14b | 1098 | || !TEST_true(BN_usub(ret, sum, a)) |
8d1ebff4 | 1099 | || !equalBN("Sum -u A", b, ret) |
30bea14b | 1100 | || !TEST_true(BN_usub(ret, sum, b)) |
8d1ebff4 RS |
1101 | || !equalBN("Sum -u B", a, ret)) |
1102 | goto err; | |
1103 | /* | |
1104 | * Test that the functions work when |r| and |a| point to the same | |
1105 | * BIGNUM, or when |r| and |b| point to the same BIGNUM. | |
1106 | * TODO: Test where all of |r|, |a|, and |b| point to the same BIGNUM. | |
1107 | */ | |
30bea14b RS |
1108 | if (!TEST_true(BN_copy(ret, a)) |
1109 | || !TEST_true(BN_uadd(ret, ret, b)) | |
8d1ebff4 | 1110 | || !equalBN("A +u B (r is a)", sum, ret) |
30bea14b RS |
1111 | || !TEST_true(BN_copy(ret, b)) |
1112 | || !TEST_true(BN_uadd(ret, a, ret)) | |
8d1ebff4 | 1113 | || !equalBN("A +u B (r is b)", sum, ret) |
30bea14b RS |
1114 | || !TEST_true(BN_copy(ret, sum)) |
1115 | || !TEST_true(BN_usub(ret, ret, a)) | |
8d1ebff4 | 1116 | || !equalBN("Sum -u A (r is a)", b, ret) |
30bea14b RS |
1117 | || !TEST_true(BN_copy(ret, a)) |
1118 | || !TEST_true(BN_usub(ret, sum, ret)) | |
8d1ebff4 | 1119 | || !equalBN("Sum -u A (r is b)", b, ret) |
30bea14b RS |
1120 | || !TEST_true(BN_copy(ret, sum)) |
1121 | || !TEST_true(BN_usub(ret, ret, b)) | |
8d1ebff4 | 1122 | || !equalBN("Sum -u B (r is a)", a, ret) |
30bea14b RS |
1123 | || !TEST_true(BN_copy(ret, b)) |
1124 | || !TEST_true(BN_usub(ret, sum, ret)) | |
8d1ebff4 RS |
1125 | || !equalBN("Sum -u B (r is b)", a, ret)) |
1126 | goto err; | |
1127 | } | |
1128 | ||
1129 | /* | |
1130 | * Test with BN_add_word() and BN_sub_word() if |b| is small enough. | |
1131 | */ | |
1132 | b_word = BN_get_word(b); | |
1133 | if (!BN_is_negative(b) && b_word != (BN_ULONG)-1) { | |
30bea14b RS |
1134 | if (!TEST_true(BN_copy(ret, a)) |
1135 | || !TEST_true(BN_add_word(ret, b_word)) | |
8d1ebff4 | 1136 | || !equalBN("A + B (word)", sum, ret) |
30bea14b RS |
1137 | || !TEST_true(BN_copy(ret, sum)) |
1138 | || !TEST_true(BN_sub_word(ret, b_word)) | |
8d1ebff4 RS |
1139 | || !equalBN("Sum - B (word)", a, ret)) |
1140 | goto err; | |
1141 | } | |
1142 | st = 1; | |
1143 | ||
1144 | err: | |
1145 | BN_free(a); | |
1146 | BN_free(b); | |
1147 | BN_free(sum); | |
1148 | BN_free(ret); | |
1149 | return st; | |
1150 | } | |
1151 | ||
1152 | static int file_lshift1(STANZA *s) | |
1153 | { | |
30bea14b RS |
1154 | BIGNUM *a = NULL, *lshift1 = NULL, *zero = NULL, *ret = NULL; |
1155 | BIGNUM *two = NULL, *remainder = NULL; | |
8d1ebff4 RS |
1156 | int st = 0; |
1157 | ||
30bea14b RS |
1158 | if (!TEST_ptr(a = getBN(s, "A")) |
1159 | || !TEST_ptr(lshift1 = getBN(s, "LShift1")) | |
1160 | || !TEST_ptr(zero = BN_new()) | |
1161 | || !TEST_ptr(ret = BN_new()) | |
1162 | || !TEST_ptr(two = BN_new()) | |
1163 | || !TEST_ptr(remainder = BN_new())) | |
8d1ebff4 RS |
1164 | goto err; |
1165 | ||
1166 | BN_zero(zero); | |
1167 | ||
30bea14b RS |
1168 | if (!TEST_true(BN_set_word(two, 2)) |
1169 | || !TEST_true(BN_add(ret, a, a)) | |
8d1ebff4 | 1170 | || !equalBN("A + A", lshift1, ret) |
30bea14b | 1171 | || !TEST_true(BN_mul(ret, a, two, ctx)) |
8d1ebff4 | 1172 | || !equalBN("A * 2", lshift1, ret) |
30bea14b | 1173 | || !TEST_true(BN_div(ret, remainder, lshift1, two, ctx)) |
8d1ebff4 RS |
1174 | || !equalBN("LShift1 / 2", a, ret) |
1175 | || !equalBN("LShift1 % 2", zero, remainder) | |
30bea14b | 1176 | || !TEST_true(BN_lshift1(ret, a)) |
8d1ebff4 | 1177 | || !equalBN("A << 1", lshift1, ret) |
30bea14b | 1178 | || !TEST_true(BN_rshift1(ret, lshift1)) |
8d1ebff4 | 1179 | || !equalBN("LShift >> 1", a, ret) |
30bea14b | 1180 | || !TEST_true(BN_rshift1(ret, lshift1)) |
8d1ebff4 RS |
1181 | || !equalBN("LShift >> 1", a, ret)) |
1182 | goto err; | |
1183 | ||
1184 | /* Set the LSB to 1 and test rshift1 again. */ | |
30bea14b RS |
1185 | if (!TEST_true(BN_set_bit(lshift1, 0)) |
1186 | || !TEST_true(BN_div(ret, NULL /* rem */ , lshift1, two, ctx)) | |
8d1ebff4 | 1187 | || !equalBN("(LShift1 | 1) / 2", a, ret) |
30bea14b | 1188 | || !TEST_true(BN_rshift1(ret, lshift1)) |
8d1ebff4 RS |
1189 | || !equalBN("(LShift | 1) >> 1", a, ret)) |
1190 | goto err; | |
1191 | ||
1192 | st = 1; | |
1193 | err: | |
1194 | BN_free(a); | |
1195 | BN_free(lshift1); | |
1196 | BN_free(zero); | |
1197 | BN_free(ret); | |
1198 | BN_free(two); | |
1199 | BN_free(remainder); | |
1200 | ||
1201 | return st; | |
1202 | } | |
1203 | ||
1204 | static int file_lshift(STANZA *s) | |
1205 | { | |
30bea14b RS |
1206 | BIGNUM *a = NULL, *lshift = NULL, *ret = NULL; |
1207 | int n = 0, st = 0; | |
8d1ebff4 | 1208 | |
30bea14b RS |
1209 | if (!TEST_ptr(a = getBN(s, "A")) |
1210 | || !TEST_ptr(lshift = getBN(s, "LShift")) | |
83ccead4 MC |
1211 | || !TEST_ptr(ret = BN_new()) |
1212 | || !getint(s, &n, "N")) | |
1213 | goto err; | |
8d1ebff4 | 1214 | |
30bea14b | 1215 | if (!TEST_true(BN_lshift(ret, a, n)) |
8d1ebff4 | 1216 | || !equalBN("A << N", lshift, ret) |
30bea14b | 1217 | || !TEST_true(BN_rshift(ret, lshift, n)) |
8d1ebff4 RS |
1218 | || !equalBN("A >> N", a, ret)) |
1219 | goto err; | |
1220 | ||
1221 | st = 1; | |
1222 | err: | |
1223 | BN_free(a); | |
1224 | BN_free(lshift); | |
1225 | BN_free(ret); | |
1226 | return st; | |
1227 | } | |
1228 | ||
1229 | static int file_rshift(STANZA *s) | |
1230 | { | |
30bea14b RS |
1231 | BIGNUM *a = NULL, *rshift = NULL, *ret = NULL; |
1232 | int n = 0, st = 0; | |
8d1ebff4 | 1233 | |
30bea14b RS |
1234 | if (!TEST_ptr(a = getBN(s, "A")) |
1235 | || !TEST_ptr(rshift = getBN(s, "RShift")) | |
1236 | || !TEST_ptr(ret = BN_new()) | |
1237 | || !getint(s, &n, "N")) | |
8d1ebff4 RS |
1238 | goto err; |
1239 | ||
30bea14b | 1240 | if (!TEST_true(BN_rshift(ret, a, n)) |
8d1ebff4 | 1241 | || !equalBN("A >> N", rshift, ret)) |
30bea14b | 1242 | goto err; |
ceac1975 RL |
1243 | |
1244 | /* If N == 1, try with rshift1 as well */ | |
1245 | if (n == 1) { | |
30bea14b | 1246 | if (!TEST_true(BN_rshift1(ret, a)) |
ceac1975 | 1247 | || !equalBN("A >> 1 (rshift1)", rshift, ret)) |
30bea14b | 1248 | goto err; |
ceac1975 | 1249 | } |
30bea14b | 1250 | st = 1; |
8d1ebff4 | 1251 | |
8d1ebff4 RS |
1252 | err: |
1253 | BN_free(a); | |
1254 | BN_free(rshift); | |
1255 | BN_free(ret); | |
30bea14b | 1256 | return st; |
8d1ebff4 RS |
1257 | } |
1258 | ||
1259 | static int file_square(STANZA *s) | |
1260 | { | |
30bea14b RS |
1261 | BIGNUM *a = NULL, *square = NULL, *zero = NULL, *ret = NULL; |
1262 | BIGNUM *remainder = NULL, *tmp = NULL; | |
8d1ebff4 RS |
1263 | int st = 0; |
1264 | ||
30bea14b RS |
1265 | if (!TEST_ptr(a = getBN(s, "A")) |
1266 | || !TEST_ptr(square = getBN(s, "Square")) | |
1267 | || !TEST_ptr(zero = BN_new()) | |
1268 | || !TEST_ptr(ret = BN_new()) | |
1269 | || !TEST_ptr(remainder = BN_new())) | |
8d1ebff4 RS |
1270 | goto err; |
1271 | ||
1272 | BN_zero(zero); | |
30bea14b | 1273 | if (!TEST_true(BN_sqr(ret, a, ctx)) |
8d1ebff4 | 1274 | || !equalBN("A^2", square, ret) |
30bea14b | 1275 | || !TEST_true(BN_mul(ret, a, a, ctx)) |
8d1ebff4 | 1276 | || !equalBN("A * A", square, ret) |
30bea14b | 1277 | || !TEST_true(BN_div(ret, remainder, square, a, ctx)) |
8d1ebff4 RS |
1278 | || !equalBN("Square / A", a, ret) |
1279 | || !equalBN("Square % A", zero, remainder)) | |
1280 | goto err; | |
1281 | ||
1282 | #if HAVE_BN_SQRT | |
1283 | BN_set_negative(a, 0); | |
30bea14b | 1284 | if (!TEST_true(BN_sqrt(ret, square, ctx)) |
8d1ebff4 RS |
1285 | || !equalBN("sqrt(Square)", a, ret)) |
1286 | goto err; | |
1287 | ||
1288 | /* BN_sqrt should fail on non-squares and negative numbers. */ | |
dc352c19 P |
1289 | if (!TEST_BN_eq_zero(square)) { |
1290 | if (!TEST_ptr(tmp = BN_new()) | |
1291 | || !TEST_true(BN_copy(tmp, square))) | |
8d1ebff4 RS |
1292 | goto err; |
1293 | BN_set_negative(tmp, 1); | |
1294 | ||
30bea14b | 1295 | if (!TEST_int_eq(BN_sqrt(ret, tmp, ctx), 0)) |
8d1ebff4 | 1296 | goto err; |
8d1ebff4 RS |
1297 | ERR_clear_error(); |
1298 | ||
1299 | BN_set_negative(tmp, 0); | |
1300 | if (BN_add(tmp, tmp, BN_value_one())) | |
1301 | goto err; | |
30bea14b | 1302 | if (!TEST_int_eq(BN_sqrt(ret, tmp, ctx))) |
8d1ebff4 | 1303 | goto err; |
8d1ebff4 RS |
1304 | ERR_clear_error(); |
1305 | } | |
1306 | #endif | |
1307 | ||
1308 | st = 1; | |
1309 | err: | |
1310 | BN_free(a); | |
1311 | BN_free(square); | |
1312 | BN_free(zero); | |
1313 | BN_free(ret); | |
1314 | BN_free(remainder); | |
1315 | BN_free(tmp); | |
1316 | return st; | |
1317 | } | |
1318 | ||
1319 | static int file_product(STANZA *s) | |
1320 | { | |
30bea14b RS |
1321 | BIGNUM *a = NULL, *b = NULL, *product = NULL, *ret = NULL; |
1322 | BIGNUM *remainder = NULL, *zero = NULL; | |
8d1ebff4 RS |
1323 | int st = 0; |
1324 | ||
30bea14b RS |
1325 | if (!TEST_ptr(a = getBN(s, "A")) |
1326 | || !TEST_ptr(b = getBN(s, "B")) | |
1327 | || !TEST_ptr(product = getBN(s, "Product")) | |
1328 | || !TEST_ptr(ret = BN_new()) | |
1329 | || !TEST_ptr(remainder = BN_new()) | |
1330 | || !TEST_ptr(zero = BN_new())) | |
8d1ebff4 RS |
1331 | goto err; |
1332 | ||
1333 | BN_zero(zero); | |
1334 | ||
30bea14b | 1335 | if (!TEST_true(BN_mul(ret, a, b, ctx)) |
8d1ebff4 | 1336 | || !equalBN("A * B", product, ret) |
30bea14b | 1337 | || !TEST_true(BN_div(ret, remainder, product, a, ctx)) |
8d1ebff4 RS |
1338 | || !equalBN("Product / A", b, ret) |
1339 | || !equalBN("Product % A", zero, remainder) | |
30bea14b | 1340 | || !TEST_true(BN_div(ret, remainder, product, b, ctx)) |
8d1ebff4 RS |
1341 | || !equalBN("Product / B", a, ret) |
1342 | || !equalBN("Product % B", zero, remainder)) | |
1343 | goto err; | |
1344 | ||
1345 | st = 1; | |
1346 | err: | |
1347 | BN_free(a); | |
1348 | BN_free(b); | |
1349 | BN_free(product); | |
1350 | BN_free(ret); | |
1351 | BN_free(remainder); | |
1352 | BN_free(zero); | |
1353 | return st; | |
1354 | } | |
1355 | ||
1356 | static int file_quotient(STANZA *s) | |
1357 | { | |
30bea14b RS |
1358 | BIGNUM *a = NULL, *b = NULL, *quotient = NULL, *remainder = NULL; |
1359 | BIGNUM *ret = NULL, *ret2 = NULL, *nnmod = NULL; | |
8d1ebff4 RS |
1360 | BN_ULONG b_word, ret_word; |
1361 | int st = 0; | |
1362 | ||
30bea14b RS |
1363 | if (!TEST_ptr(a = getBN(s, "A")) |
1364 | || !TEST_ptr(b = getBN(s, "B")) | |
1365 | || !TEST_ptr(quotient = getBN(s, "Quotient")) | |
1366 | || !TEST_ptr(remainder = getBN(s, "Remainder")) | |
1367 | || !TEST_ptr(ret = BN_new()) | |
1368 | || !TEST_ptr(ret2 = BN_new()) | |
1369 | || !TEST_ptr(nnmod = BN_new())) | |
8d1ebff4 RS |
1370 | goto err; |
1371 | ||
30bea14b | 1372 | if (!TEST_true(BN_div(ret, ret2, a, b, ctx)) |
8d1ebff4 RS |
1373 | || !equalBN("A / B", quotient, ret) |
1374 | || !equalBN("A % B", remainder, ret2) | |
30bea14b RS |
1375 | || !TEST_true(BN_mul(ret, quotient, b, ctx)) |
1376 | || !TEST_true(BN_add(ret, ret, remainder)) | |
8d1ebff4 RS |
1377 | || !equalBN("Quotient * B + Remainder", a, ret)) |
1378 | goto err; | |
1379 | ||
1380 | /* | |
1381 | * Test with BN_mod_word() and BN_div_word() if the divisor is | |
1382 | * small enough. | |
1383 | */ | |
1384 | b_word = BN_get_word(b); | |
1385 | if (!BN_is_negative(b) && b_word != (BN_ULONG)-1) { | |
1386 | BN_ULONG remainder_word = BN_get_word(remainder); | |
1387 | ||
1388 | assert(remainder_word != (BN_ULONG)-1); | |
30bea14b | 1389 | if (!TEST_ptr(BN_copy(ret, a))) |
8d1ebff4 RS |
1390 | goto err; |
1391 | ret_word = BN_div_word(ret, b_word); | |
1392 | if (ret_word != remainder_word) { | |
1393 | #ifdef BN_DEC_FMT1 | |
30bea14b RS |
1394 | TEST_error( |
1395 | "Got A %% B (word) = " BN_DEC_FMT1 ", wanted " BN_DEC_FMT1, | |
8d1ebff4 RS |
1396 | ret_word, remainder_word); |
1397 | #else | |
30bea14b | 1398 | TEST_error("Got A %% B (word) mismatch"); |
8d1ebff4 RS |
1399 | #endif |
1400 | goto err; | |
1401 | } | |
1402 | if (!equalBN ("A / B (word)", quotient, ret)) | |
1403 | goto err; | |
1404 | ||
1405 | ret_word = BN_mod_word(a, b_word); | |
1406 | if (ret_word != remainder_word) { | |
1407 | #ifdef BN_DEC_FMT1 | |
30bea14b RS |
1408 | TEST_error( |
1409 | "Got A %% B (word) = " BN_DEC_FMT1 ", wanted " BN_DEC_FMT1 "", | |
8d1ebff4 RS |
1410 | ret_word, remainder_word); |
1411 | #else | |
30bea14b | 1412 | TEST_error("Got A %% B (word) mismatch"); |
8d1ebff4 RS |
1413 | #endif |
1414 | goto err; | |
1415 | } | |
1416 | } | |
1417 | ||
1418 | /* Test BN_nnmod. */ | |
1419 | if (!BN_is_negative(b)) { | |
30bea14b RS |
1420 | if (!TEST_true(BN_copy(nnmod, remainder)) |
1421 | || (BN_is_negative(nnmod) | |
1422 | && !TEST_true(BN_add(nnmod, nnmod, b))) | |
1423 | || !TEST_true(BN_nnmod(ret, a, b, ctx)) | |
8d1ebff4 RS |
1424 | || !equalBN("A % B (non-negative)", nnmod, ret)) |
1425 | goto err; | |
1426 | } | |
1427 | ||
1428 | st = 1; | |
1429 | err: | |
1430 | BN_free(a); | |
1431 | BN_free(b); | |
1432 | BN_free(quotient); | |
1433 | BN_free(remainder); | |
1434 | BN_free(ret); | |
1435 | BN_free(ret2); | |
1436 | BN_free(nnmod); | |
1437 | return st; | |
1438 | } | |
1439 | ||
1440 | static int file_modmul(STANZA *s) | |
1441 | { | |
30bea14b | 1442 | BIGNUM *a = NULL, *b = NULL, *m = NULL, *mod_mul = NULL, *ret = NULL; |
8d1ebff4 RS |
1443 | int st = 0; |
1444 | ||
30bea14b RS |
1445 | if (!TEST_ptr(a = getBN(s, "A")) |
1446 | || !TEST_ptr(b = getBN(s, "B")) | |
1447 | || !TEST_ptr(m = getBN(s, "M")) | |
1448 | || !TEST_ptr(mod_mul = getBN(s, "ModMul")) | |
1449 | || !TEST_ptr(ret = BN_new())) | |
8d1ebff4 RS |
1450 | goto err; |
1451 | ||
30bea14b | 1452 | if (!TEST_true(BN_mod_mul(ret, a, b, m, ctx)) |
8d1ebff4 RS |
1453 | || !equalBN("A * B (mod M)", mod_mul, ret)) |
1454 | goto err; | |
1455 | ||
1456 | if (BN_is_odd(m)) { | |
1457 | /* Reduce |a| and |b| and test the Montgomery version. */ | |
1458 | BN_MONT_CTX *mont = BN_MONT_CTX_new(); | |
1459 | BIGNUM *a_tmp = BN_new(); | |
1460 | BIGNUM *b_tmp = BN_new(); | |
30bea14b | 1461 | |
8d1ebff4 | 1462 | if (mont == NULL || a_tmp == NULL || b_tmp == NULL |
30bea14b RS |
1463 | || !TEST_true(BN_MONT_CTX_set(mont, m, ctx)) |
1464 | || !TEST_true(BN_nnmod(a_tmp, a, m, ctx)) | |
1465 | || !TEST_true(BN_nnmod(b_tmp, b, m, ctx)) | |
1466 | || !TEST_true(BN_to_montgomery(a_tmp, a_tmp, mont, ctx)) | |
1467 | || !TEST_true(BN_to_montgomery(b_tmp, b_tmp, mont, ctx)) | |
1468 | || !TEST_true(BN_mod_mul_montgomery(ret, a_tmp, b_tmp, | |
1469 | mont, ctx)) | |
1470 | || !TEST_true(BN_from_montgomery(ret, ret, mont, ctx)) | |
1471 | || !equalBN("A * B (mod M) (mont)", mod_mul, ret)) | |
8d1ebff4 | 1472 | st = 0; |
30bea14b | 1473 | else |
8d1ebff4 | 1474 | st = 1; |
8d1ebff4 RS |
1475 | BN_MONT_CTX_free(mont); |
1476 | BN_free(a_tmp); | |
1477 | BN_free(b_tmp); | |
1478 | if (st == 0) | |
1479 | goto err; | |
1480 | } | |
1481 | ||
1482 | st = 1; | |
1483 | err: | |
1484 | BN_free(a); | |
1485 | BN_free(b); | |
1486 | BN_free(m); | |
1487 | BN_free(mod_mul); | |
1488 | BN_free(ret); | |
1489 | return st; | |
1490 | } | |
1491 | ||
1492 | static int file_modexp(STANZA *s) | |
1493 | { | |
30bea14b RS |
1494 | BIGNUM *a = NULL, *e = NULL, *m = NULL, *mod_exp = NULL, *ret = NULL; |
1495 | BIGNUM *b = NULL, *c = NULL, *d = NULL; | |
8d1ebff4 RS |
1496 | int st = 0; |
1497 | ||
30bea14b RS |
1498 | if (!TEST_ptr(a = getBN(s, "A")) |
1499 | || !TEST_ptr(e = getBN(s, "E")) | |
1500 | || !TEST_ptr(m = getBN(s, "M")) | |
1501 | || !TEST_ptr(mod_exp = getBN(s, "ModExp")) | |
1502 | || !TEST_ptr(ret = BN_new()) | |
1503 | || !TEST_ptr(d = BN_new())) | |
8d1ebff4 RS |
1504 | goto err; |
1505 | ||
30bea14b | 1506 | if (!TEST_true(BN_mod_exp(ret, a, e, m, ctx)) |
8d1ebff4 RS |
1507 | || !equalBN("A ^ E (mod M)", mod_exp, ret)) |
1508 | goto err; | |
1509 | ||
1510 | if (BN_is_odd(m)) { | |
30bea14b | 1511 | if (!TEST_true(BN_mod_exp_mont(ret, a, e, m, ctx, NULL)) |
8d1ebff4 | 1512 | || !equalBN("A ^ E (mod M) (mont)", mod_exp, ret) |
30bea14b RS |
1513 | || !TEST_true(BN_mod_exp_mont_consttime(ret, a, e, m, |
1514 | ctx, NULL)) | |
8d1ebff4 RS |
1515 | || !equalBN("A ^ E (mod M) (mont const", mod_exp, ret)) |
1516 | goto err; | |
1517 | } | |
1518 | ||
1519 | /* Regression test for carry propagation bug in sqr8x_reduction */ | |
1520 | BN_hex2bn(&a, "050505050505"); | |
1521 | BN_hex2bn(&b, "02"); | |
1522 | BN_hex2bn(&c, | |
1523 | "4141414141414141414141274141414141414141414141414141414141414141" | |
1524 | "4141414141414141414141414141414141414141414141414141414141414141" | |
1525 | "4141414141414141414141800000000000000000000000000000000000000000" | |
1526 | "0000000000000000000000000000000000000000000000000000000000000000" | |
1527 | "0000000000000000000000000000000000000000000000000000000000000000" | |
1528 | "0000000000000000000000000000000000000000000000000000000001"); | |
9e206ce5 P |
1529 | if (!TEST_true(BN_mod_exp(d, a, b, c, ctx)) |
1530 | || !TEST_true(BN_mul(e, a, a, ctx)) | |
1531 | || !TEST_BN_eq(d, e)) | |
8d1ebff4 | 1532 | goto err; |
8d1ebff4 RS |
1533 | |
1534 | st = 1; | |
1535 | err: | |
1536 | BN_free(a); | |
1537 | BN_free(b); | |
1538 | BN_free(c); | |
1539 | BN_free(d); | |
1540 | BN_free(e); | |
1541 | BN_free(m); | |
1542 | BN_free(mod_exp); | |
1543 | BN_free(ret); | |
1544 | return st; | |
1545 | } | |
1546 | ||
1547 | static int file_exp(STANZA *s) | |
1548 | { | |
30bea14b | 1549 | BIGNUM *a = NULL, *e = NULL, *exp = NULL, *ret = NULL; |
8d1ebff4 RS |
1550 | int st = 0; |
1551 | ||
30bea14b RS |
1552 | if (!TEST_ptr(a = getBN(s, "A")) |
1553 | || !TEST_ptr(e = getBN(s, "E")) | |
1554 | || !TEST_ptr(exp = getBN(s, "Exp")) | |
1555 | || !TEST_ptr(ret = BN_new())) | |
8d1ebff4 RS |
1556 | goto err; |
1557 | ||
30bea14b | 1558 | if (!TEST_true(BN_exp(ret, a, e, ctx)) |
8d1ebff4 RS |
1559 | || !equalBN("A ^ E", exp, ret)) |
1560 | goto err; | |
1561 | ||
1562 | st = 1; | |
1563 | err: | |
1564 | BN_free(a); | |
1565 | BN_free(e); | |
1566 | BN_free(exp); | |
1567 | BN_free(ret); | |
1568 | return st; | |
1569 | } | |
1570 | ||
1571 | static int file_modsqrt(STANZA *s) | |
1572 | { | |
30bea14b | 1573 | BIGNUM *a = NULL, *p = NULL, *mod_sqrt = NULL, *ret = NULL, *ret2 = NULL; |
8d1ebff4 RS |
1574 | int st = 0; |
1575 | ||
30bea14b RS |
1576 | if (!TEST_ptr(a = getBN(s, "A")) |
1577 | || !TEST_ptr(p = getBN(s, "P")) | |
1578 | || !TEST_ptr(mod_sqrt = getBN(s, "ModSqrt")) | |
1579 | || !TEST_ptr(ret = BN_new()) | |
1580 | || !TEST_ptr(ret2 = BN_new())) | |
8d1ebff4 RS |
1581 | goto err; |
1582 | ||
1583 | /* There are two possible answers. */ | |
30bea14b RS |
1584 | if (!TEST_true(BN_mod_sqrt(ret, a, p, ctx)) |
1585 | || !TEST_true(BN_sub(ret2, p, ret))) | |
8d1ebff4 RS |
1586 | goto err; |
1587 | ||
30bea14b | 1588 | /* The first condition should NOT be a test. */ |
8d1ebff4 RS |
1589 | if (BN_cmp(ret2, mod_sqrt) != 0 |
1590 | && !equalBN("sqrt(A) (mod P)", mod_sqrt, ret)) | |
1591 | goto err; | |
1592 | ||
1593 | st = 1; | |
1594 | err: | |
1595 | BN_free(a); | |
1596 | BN_free(p); | |
1597 | BN_free(mod_sqrt); | |
1598 | BN_free(ret); | |
1599 | BN_free(ret2); | |
1600 | return st; | |
1601 | } | |
1602 | ||
31a80694 | 1603 | static int test_bn2padded(void) |
8d1ebff4 RS |
1604 | { |
1605 | #if HAVE_BN_PADDED | |
1606 | uint8_t zeros[256], out[256], reference[128]; | |
1607 | BIGNUM *n = BN_new(); | |
1608 | int st = 0; | |
1609 | ||
1610 | /* Test edge case at 0. */ | |
1611 | if (n == NULL) | |
1612 | goto err; | |
30bea14b | 1613 | if (!TEST_true(BN_bn2bin_padded(NULL, 0, n))) |
8d1ebff4 | 1614 | goto err; |
8d1ebff4 | 1615 | memset(out, -1, sizeof(out)); |
30bea14b | 1616 | if (!TEST_true(BN_bn2bin_padded(out, sizeof(out)), n)) |
8d1ebff4 | 1617 | goto err; |
8d1ebff4 | 1618 | memset(zeros, 0, sizeof(zeros)); |
30bea14b | 1619 | if (!TEST_mem_eq(zeros, sizeof(zeros), out, sizeof(out))) |
8d1ebff4 | 1620 | goto err; |
8d1ebff4 RS |
1621 | |
1622 | /* Test a random numbers at various byte lengths. */ | |
1623 | for (size_t bytes = 128 - 7; bytes <= 128; bytes++) { | |
1624 | #define TOP_BIT_ON 0 | |
1625 | #define BOTTOM_BIT_NOTOUCH 0 | |
30bea14b | 1626 | if (!TEST_true(BN_rand(n, bytes * 8, TOP_BIT_ON, BOTTOM_BIT_NOTOUCH))) |
8d1ebff4 | 1627 | goto err; |
30bea14b RS |
1628 | if (!TEST_int_eq(BN_num_bytes(n),A) bytes |
1629 | || TEST_int_eq(BN_bn2bin(n, reference), bytes)) | |
8d1ebff4 | 1630 | goto err; |
8d1ebff4 | 1631 | /* Empty buffer should fail. */ |
30bea14b | 1632 | if (!TEST_int_eq(BN_bn2bin_padded(NULL, 0, n)), 0) |
8d1ebff4 | 1633 | goto err; |
8d1ebff4 | 1634 | /* One byte short should fail. */ |
30bea14b | 1635 | if (BN_bn2bin_padded(out, bytes - 1, n)) |
8d1ebff4 | 1636 | goto err; |
8d1ebff4 | 1637 | /* Exactly right size should encode. */ |
30bea14b RS |
1638 | if (!TEST_true(BN_bn2bin_padded(out, bytes, n)) |
1639 | || TEST_mem_eq(out, bytes, reference, bytes)) | |
8d1ebff4 | 1640 | goto err; |
8d1ebff4 | 1641 | /* Pad up one byte extra. */ |
30bea14b RS |
1642 | if (!TEST_true(BN_bn2bin_padded(out, bytes + 1, n)) |
1643 | || !TEST_mem_eq(out + 1, bytes, reference, bytes) | |
1644 | || !TEST_mem_eq(out, 1, zeros, 1)) | |
8d1ebff4 | 1645 | goto err; |
8d1ebff4 | 1646 | /* Pad up to 256. */ |
30bea14b RS |
1647 | if (!TEST_true(BN_bn2bin_padded(out, sizeof(out)), n) |
1648 | || !TEST_mem_eq(out + sizeof(out) - bytes, bytes, | |
1649 | reference, bytes) | |
1650 | || !TEST_mem_eq(out, sizseof(out) - bytes, | |
1651 | zeros, sizeof(out) - bytes)) | |
8d1ebff4 | 1652 | goto err; |
8d1ebff4 RS |
1653 | } |
1654 | ||
1655 | st = 1; | |
1656 | err: | |
1657 | BN_free(n); | |
1658 | return st; | |
1659 | #else | |
1660 | return ctx != NULL; | |
1661 | #endif | |
1662 | } | |
1663 | ||
31a80694 | 1664 | static int test_dec2bn(void) |
8d1ebff4 RS |
1665 | { |
1666 | BIGNUM *bn = NULL; | |
1667 | int st = 0; | |
1668 | ||
30bea14b | 1669 | if (!TEST_int_eq(parsedecBN(&bn, "0"), 1) |
dc352c19 P |
1670 | || !TEST_BN_eq_word(bn, 0) |
1671 | || !TEST_BN_eq_zero(bn) | |
1672 | || !TEST_BN_le_zero(bn) | |
1673 | || !TEST_BN_ge_zero(bn) | |
1674 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1675 | goto err; |
8d1ebff4 | 1676 | BN_free(bn); |
dc352c19 | 1677 | bn = NULL; |
8d1ebff4 | 1678 | |
30bea14b | 1679 | if (!TEST_int_eq(parsedecBN(&bn, "256"), 3) |
dc352c19 P |
1680 | || !TEST_BN_eq_word(bn, 256) |
1681 | || !TEST_BN_ge_zero(bn) | |
1682 | || !TEST_BN_gt_zero(bn) | |
1683 | || !TEST_BN_ne_zero(bn) | |
1684 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1685 | goto err; |
8d1ebff4 | 1686 | BN_free(bn); |
dc352c19 | 1687 | bn = NULL; |
8d1ebff4 | 1688 | |
30bea14b | 1689 | if (!TEST_int_eq(parsedecBN(&bn, "-42"), 3) |
dc352c19 P |
1690 | || !TEST_BN_abs_eq_word(bn, 42) |
1691 | || !TEST_BN_lt_zero(bn) | |
1692 | || !TEST_BN_le_zero(bn) | |
1693 | || !TEST_BN_ne_zero(bn) | |
1694 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1695 | goto err; |
8d1ebff4 | 1696 | BN_free(bn); |
dc352c19 P |
1697 | bn = NULL; |
1698 | ||
1699 | if (!TEST_int_eq(parsedecBN(&bn, "1"), 1) | |
1700 | || !TEST_BN_eq_word(bn, 1) | |
1701 | || !TEST_BN_ne_zero(bn) | |
1702 | || !TEST_BN_gt_zero(bn) | |
1703 | || !TEST_BN_ge_zero(bn) | |
1704 | || !TEST_BN_eq_one(bn) | |
1705 | || !TEST_BN_odd(bn)) | |
1706 | goto err; | |
1707 | BN_free(bn); | |
1708 | bn = NULL; | |
8d1ebff4 | 1709 | |
30bea14b | 1710 | if (!TEST_int_eq(parsedecBN(&bn, "-0"), 2) |
dc352c19 P |
1711 | || !TEST_BN_eq_zero(bn) |
1712 | || !TEST_BN_ge_zero(bn) | |
1713 | || !TEST_BN_le_zero(bn) | |
1714 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1715 | goto err; |
8d1ebff4 | 1716 | BN_free(bn); |
dc352c19 | 1717 | bn = NULL; |
8d1ebff4 | 1718 | |
30bea14b | 1719 | if (!TEST_int_eq(parsedecBN(&bn, "42trailing garbage is ignored"), 2) |
dc352c19 P |
1720 | || !TEST_BN_abs_eq_word(bn, 42) |
1721 | || !TEST_BN_ge_zero(bn) | |
1722 | || !TEST_BN_gt_zero(bn) | |
1723 | || !TEST_BN_ne_zero(bn) | |
1724 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1725 | goto err; |
8d1ebff4 RS |
1726 | |
1727 | st = 1; | |
1728 | err: | |
1729 | BN_free(bn); | |
1730 | return st; | |
1731 | } | |
1732 | ||
31a80694 | 1733 | static int test_hex2bn(void) |
8d1ebff4 RS |
1734 | { |
1735 | BIGNUM *bn = NULL; | |
30bea14b | 1736 | int st = 0; |
8d1ebff4 | 1737 | |
30bea14b | 1738 | if (!TEST_int_eq(parseBN(&bn, "0"), 1) |
dc352c19 P |
1739 | || !TEST_BN_eq_zero(bn) |
1740 | || !TEST_BN_ge_zero(bn) | |
1741 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1742 | goto err; |
8d1ebff4 | 1743 | BN_free(bn); |
dc352c19 | 1744 | bn = NULL; |
8d1ebff4 | 1745 | |
30bea14b | 1746 | if (!TEST_int_eq(parseBN(&bn, "256"), 3) |
dc352c19 P |
1747 | || !TEST_BN_eq_word(bn, 0x256) |
1748 | || !TEST_BN_ge_zero(bn) | |
1749 | || !TEST_BN_gt_zero(bn) | |
1750 | || !TEST_BN_ne_zero(bn) | |
1751 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1752 | goto err; |
8d1ebff4 | 1753 | BN_free(bn); |
dc352c19 | 1754 | bn = NULL; |
8d1ebff4 | 1755 | |
30bea14b | 1756 | if (!TEST_int_eq(parseBN(&bn, "-42"), 3) |
dc352c19 P |
1757 | || !TEST_BN_abs_eq_word(bn, 0x42) |
1758 | || !TEST_BN_lt_zero(bn) | |
1759 | || !TEST_BN_le_zero(bn) | |
1760 | || !TEST_BN_ne_zero(bn) | |
1761 | || !TEST_BN_even(bn)) | |
1762 | goto err; | |
1763 | BN_free(bn); | |
1764 | bn = NULL; | |
1765 | ||
1766 | if (!TEST_int_eq(parseBN(&bn, "cb"), 2) | |
1767 | || !TEST_BN_eq_word(bn, 0xCB) | |
1768 | || !TEST_BN_ge_zero(bn) | |
1769 | || !TEST_BN_gt_zero(bn) | |
1770 | || !TEST_BN_ne_zero(bn) | |
1771 | || !TEST_BN_odd(bn)) | |
8d1ebff4 | 1772 | goto err; |
8d1ebff4 | 1773 | BN_free(bn); |
dc352c19 | 1774 | bn = NULL; |
8d1ebff4 | 1775 | |
30bea14b | 1776 | if (!TEST_int_eq(parseBN(&bn, "-0"), 2) |
dc352c19 P |
1777 | || !TEST_BN_eq_zero(bn) |
1778 | || !TEST_BN_ge_zero(bn) | |
1779 | || !TEST_BN_le_zero(bn) | |
1780 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1781 | goto err; |
8d1ebff4 | 1782 | BN_free(bn); |
dc352c19 | 1783 | bn = NULL; |
8d1ebff4 | 1784 | |
30bea14b | 1785 | if (!TEST_int_eq(parseBN(&bn, "abctrailing garbage is ignored"), 3) |
dc352c19 P |
1786 | || !TEST_BN_eq_word(bn, 0xabc) |
1787 | || !TEST_BN_ge_zero(bn) | |
1788 | || !TEST_BN_gt_zero(bn) | |
1789 | || !TEST_BN_ne_zero(bn) | |
1790 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1791 | goto err; |
8d1ebff4 RS |
1792 | st = 1; |
1793 | ||
1794 | err: | |
1795 | BN_free(bn); | |
1796 | return st; | |
1797 | } | |
1798 | ||
31a80694 | 1799 | static int test_asc2bn(void) |
8d1ebff4 | 1800 | { |
30bea14b | 1801 | BIGNUM *bn = NULL; |
8d1ebff4 RS |
1802 | int st = 0; |
1803 | ||
30bea14b | 1804 | if (!TEST_ptr(bn = BN_new())) |
8d1ebff4 | 1805 | goto err; |
8d1ebff4 | 1806 | |
30bea14b | 1807 | if (!TEST_true(BN_asc2bn(&bn, "0")) |
dc352c19 P |
1808 | || !TEST_BN_eq_zero(bn) |
1809 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 1810 | goto err; |
8d1ebff4 | 1811 | |
30bea14b | 1812 | if (!TEST_true(BN_asc2bn(&bn, "256")) |
dc352c19 P |
1813 | || !TEST_BN_eq_word(bn, 256) |
1814 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 1815 | goto err; |
8d1ebff4 | 1816 | |
30bea14b | 1817 | if (!TEST_true(BN_asc2bn(&bn, "-42")) |
dc352c19 P |
1818 | || !TEST_BN_abs_eq_word(bn, 42) |
1819 | || !TEST_BN_lt_zero(bn)) | |
8d1ebff4 | 1820 | goto err; |
8d1ebff4 | 1821 | |
30bea14b | 1822 | if (!TEST_true(BN_asc2bn(&bn, "0x1234")) |
dc352c19 P |
1823 | || !TEST_BN_eq_word(bn, 0x1234) |
1824 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 1825 | goto err; |
8d1ebff4 | 1826 | |
30bea14b | 1827 | if (!TEST_true(BN_asc2bn(&bn, "0X1234")) |
dc352c19 P |
1828 | || !TEST_BN_eq_word(bn, 0x1234) |
1829 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 1830 | goto err; |
8d1ebff4 | 1831 | |
30bea14b | 1832 | if (!TEST_true(BN_asc2bn(&bn, "-0xabcd")) |
dc352c19 P |
1833 | || !TEST_BN_abs_eq_word(bn, 0xabcd) |
1834 | || !TEST_BN_lt_zero(bn)) | |
8d1ebff4 | 1835 | goto err; |
8d1ebff4 | 1836 | |
30bea14b | 1837 | if (!TEST_true(BN_asc2bn(&bn, "-0")) |
dc352c19 P |
1838 | || !TEST_BN_eq_zero(bn) |
1839 | || !TEST_BN_ge_zero(bn)) | |
30bea14b RS |
1840 | goto err; |
1841 | ||
1842 | if (!TEST_true(BN_asc2bn(&bn, "123trailing garbage is ignored")) | |
dc352c19 P |
1843 | || !TEST_BN_eq_word(bn, 123) |
1844 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 1845 | goto err; |
8d1ebff4 RS |
1846 | |
1847 | st = 1; | |
1848 | err: | |
1849 | BN_free(bn); | |
1850 | return st; | |
1851 | } | |
1852 | ||
1853 | static const MPITEST kMPITests[] = { | |
1854 | {"0", "\x00\x00\x00\x00", 4}, | |
1855 | {"1", "\x00\x00\x00\x01\x01", 5}, | |
1856 | {"-1", "\x00\x00\x00\x01\x81", 5}, | |
1857 | {"128", "\x00\x00\x00\x02\x00\x80", 6}, | |
1858 | {"256", "\x00\x00\x00\x02\x01\x00", 6}, | |
1859 | {"-256", "\x00\x00\x00\x02\x81\x00", 6}, | |
1860 | }; | |
1861 | ||
30bea14b | 1862 | static int test_mpi(int i) |
8d1ebff4 RS |
1863 | { |
1864 | uint8_t scratch[8]; | |
30bea14b | 1865 | const MPITEST *test = &kMPITests[i]; |
8d1ebff4 | 1866 | size_t mpi_len, mpi_len2; |
30bea14b | 1867 | BIGNUM *bn = NULL; |
8d1ebff4 RS |
1868 | BIGNUM *bn2 = NULL; |
1869 | int st = 0; | |
1870 | ||
30bea14b RS |
1871 | if (!TEST_ptr(bn = BN_new()) |
1872 | || !TEST_true(BN_asc2bn(&bn, test->base10))) | |
1873 | goto err; | |
1874 | mpi_len = BN_bn2mpi(bn, NULL); | |
1875 | if (!TEST_size_t_le(mpi_len, sizeof(scratch))) | |
1876 | goto err; | |
8d1ebff4 | 1877 | |
30bea14b RS |
1878 | if (!TEST_size_t_eq(mpi_len2 = BN_bn2mpi(bn, scratch), mpi_len) |
1879 | || !TEST_mem_eq(test->mpi, test->mpi_len, scratch, mpi_len)) | |
1880 | goto err; | |
8d1ebff4 | 1881 | |
30bea14b RS |
1882 | if (!TEST_ptr(bn2 = BN_mpi2bn(scratch, mpi_len, NULL))) |
1883 | goto err; | |
8d1ebff4 | 1884 | |
dc352c19 | 1885 | if (!TEST_BN_eq(bn, bn2)) { |
8d1ebff4 | 1886 | BN_free(bn2); |
30bea14b | 1887 | goto err; |
8d1ebff4 | 1888 | } |
30bea14b | 1889 | BN_free(bn2); |
8d1ebff4 RS |
1890 | |
1891 | st = 1; | |
1892 | err: | |
1893 | BN_free(bn); | |
1894 | return st; | |
0f113f3e | 1895 | } |
bdec3c53 | 1896 | |
31a80694 | 1897 | static int test_rand(void) |
0f113f3e | 1898 | { |
30bea14b | 1899 | BIGNUM *bn = NULL; |
8d1ebff4 | 1900 | int st = 0; |
0f113f3e | 1901 | |
30bea14b | 1902 | if (!TEST_ptr(bn = BN_new())) |
8d1ebff4 | 1903 | return 0; |
0f113f3e | 1904 | |
30bea14b RS |
1905 | /* Test BN_rand for degenerate cases with |top| and |bottom| parameters. */ |
1906 | if (!TEST_false(BN_rand(bn, 0, 0 /* top */ , 0 /* bottom */ )) | |
1907 | || !TEST_false(BN_rand(bn, 0, 1 /* top */ , 1 /* bottom */ )) | |
1908 | || !TEST_true(BN_rand(bn, 1, 0 /* top */ , 0 /* bottom */ )) | |
dc352c19 | 1909 | || !TEST_BN_eq_one(bn) |
30bea14b RS |
1910 | || !TEST_false(BN_rand(bn, 1, 1 /* top */ , 0 /* bottom */ )) |
1911 | || !TEST_true(BN_rand(bn, 1, -1 /* top */ , 1 /* bottom */ )) | |
dc352c19 | 1912 | || !TEST_BN_eq_one(bn) |
30bea14b | 1913 | || !TEST_true(BN_rand(bn, 2, 1 /* top */ , 0 /* bottom */ )) |
dc352c19 | 1914 | || !TEST_BN_eq_word(bn, 3)) |
8d1ebff4 | 1915 | goto err; |
0f113f3e | 1916 | |
8d1ebff4 RS |
1917 | st = 1; |
1918 | err: | |
1919 | BN_free(bn); | |
1920 | return st; | |
1921 | } | |
1922 | ||
31a80694 | 1923 | static int test_negzero(void) |
8d1ebff4 | 1924 | { |
30bea14b | 1925 | BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL; |
8d1ebff4 RS |
1926 | BIGNUM *numerator = NULL, *denominator = NULL; |
1927 | int consttime, st = 0; | |
1928 | ||
30bea14b RS |
1929 | if (!TEST_ptr(a = BN_new()) |
1930 | || !TEST_ptr(b = BN_new()) | |
1931 | || !TEST_ptr(c = BN_new()) | |
1932 | || !TEST_ptr(d = BN_new())) | |
8d1ebff4 RS |
1933 | goto err; |
1934 | ||
1935 | /* Test that BN_mul never gives negative zero. */ | |
30bea14b | 1936 | if (!TEST_true(BN_set_word(a, 1))) |
8d1ebff4 RS |
1937 | goto err; |
1938 | BN_set_negative(a, 1); | |
1939 | BN_zero(b); | |
30bea14b | 1940 | if (!TEST_true(BN_mul(c, a, b, ctx))) |
8d1ebff4 | 1941 | goto err; |
dc352c19 P |
1942 | if (!TEST_BN_eq_zero(c) |
1943 | || !TEST_BN_ge_zero(c)) | |
8d1ebff4 | 1944 | goto err; |
8d1ebff4 RS |
1945 | |
1946 | for (consttime = 0; consttime < 2; consttime++) { | |
30bea14b RS |
1947 | if (!TEST_ptr(numerator = BN_new()) |
1948 | || !TEST_ptr(denominator = BN_new())) | |
0f113f3e | 1949 | goto err; |
8d1ebff4 RS |
1950 | if (consttime) { |
1951 | BN_set_flags(numerator, BN_FLG_CONSTTIME); | |
1952 | BN_set_flags(denominator, BN_FLG_CONSTTIME); | |
1953 | } | |
1954 | /* Test that BN_div never gives negative zero in the quotient. */ | |
30bea14b RS |
1955 | if (!TEST_true(BN_set_word(numerator, 1)) |
1956 | || !TEST_true(BN_set_word(denominator, 2))) | |
0f113f3e | 1957 | goto err; |
8d1ebff4 | 1958 | BN_set_negative(numerator, 1); |
30bea14b | 1959 | if (!TEST_true(BN_div(a, b, numerator, denominator, ctx)) |
dc352c19 P |
1960 | || !TEST_BN_eq_zero(a) |
1961 | || !TEST_BN_ge_zero(a)) | |
0f113f3e | 1962 | goto err; |
0f113f3e | 1963 | |
8d1ebff4 | 1964 | /* Test that BN_div never gives negative zero in the remainder. */ |
30bea14b RS |
1965 | if (!TEST_true(BN_set_word(denominator, 1)) |
1966 | || !TEST_true(BN_div(a, b, numerator, denominator, ctx)) | |
dc352c19 P |
1967 | || !TEST_BN_eq_zero(b) |
1968 | || !TEST_BN_ge_zero(b)) | |
0f113f3e | 1969 | goto err; |
8d1ebff4 RS |
1970 | BN_free(numerator); |
1971 | BN_free(denominator); | |
1972 | numerator = denominator = NULL; | |
1973 | } | |
0f113f3e | 1974 | |
8d1ebff4 RS |
1975 | /* Test that BN_set_negative will not produce a negative zero. */ |
1976 | BN_zero(a); | |
1977 | BN_set_negative(a, 1); | |
30bea14b | 1978 | if (BN_is_negative(a)) |
8d1ebff4 | 1979 | goto err; |
8d1ebff4 | 1980 | st = 1; |
30bea14b | 1981 | |
8d1ebff4 | 1982 | err: |
23a1d5e9 RS |
1983 | BN_free(a); |
1984 | BN_free(b); | |
8d1ebff4 RS |
1985 | BN_free(c); |
1986 | BN_free(d); | |
1987 | BN_free(numerator); | |
1988 | BN_free(denominator); | |
1989 | return st; | |
0f113f3e | 1990 | } |
c7820896 | 1991 | |
31a80694 | 1992 | static int test_badmod(void) |
0f113f3e | 1993 | { |
30bea14b RS |
1994 | BIGNUM *a = NULL, *b = NULL, *zero = NULL; |
1995 | BN_MONT_CTX *mont = NULL; | |
8d1ebff4 | 1996 | int st = 0; |
0f113f3e | 1997 | |
30bea14b RS |
1998 | if (!TEST_ptr(a = BN_new()) |
1999 | || !TEST_ptr(b = BN_new()) | |
2000 | || !TEST_ptr(zero = BN_new()) | |
2001 | || !TEST_ptr(mont = BN_MONT_CTX_new())) | |
0f113f3e | 2002 | goto err; |
8d1ebff4 | 2003 | BN_zero(zero); |
0f113f3e | 2004 | |
30bea14b | 2005 | if (!TEST_false(BN_div(a, b, BN_value_one(), zero, ctx))) |
8d1ebff4 | 2006 | goto err; |
8d1ebff4 | 2007 | ERR_clear_error(); |
0f113f3e | 2008 | |
30bea14b | 2009 | if (!TEST_false(BN_mod_mul(a, BN_value_one(), BN_value_one(), zero, ctx))) |
8d1ebff4 | 2010 | goto err; |
8d1ebff4 | 2011 | ERR_clear_error(); |
0f113f3e | 2012 | |
30bea14b | 2013 | if (!TEST_false(BN_mod_exp(a, BN_value_one(), BN_value_one(), zero, ctx))) |
8d1ebff4 | 2014 | goto err; |
8d1ebff4 | 2015 | ERR_clear_error(); |
0f113f3e | 2016 | |
30bea14b RS |
2017 | if (!TEST_false(BN_mod_exp_mont(a, BN_value_one(), BN_value_one(), |
2018 | zero, ctx, NULL))) | |
8d1ebff4 | 2019 | goto err; |
8d1ebff4 | 2020 | ERR_clear_error(); |
0f113f3e | 2021 | |
30bea14b RS |
2022 | if (!TEST_false(BN_mod_exp_mont_consttime(a, BN_value_one(), BN_value_one(), |
2023 | zero, ctx, NULL))) | |
8d1ebff4 | 2024 | goto err; |
8d1ebff4 | 2025 | ERR_clear_error(); |
0f113f3e | 2026 | |
30bea14b | 2027 | if (!TEST_false(BN_MONT_CTX_set(mont, zero, ctx))) |
8d1ebff4 | 2028 | goto err; |
8d1ebff4 | 2029 | ERR_clear_error(); |
0f113f3e | 2030 | |
8d1ebff4 | 2031 | /* Some operations also may not be used with an even modulus. */ |
30bea14b | 2032 | if (!TEST_true(BN_set_word(b, 16))) |
8d1ebff4 | 2033 | goto err; |
0f113f3e | 2034 | |
30bea14b | 2035 | if (!TEST_false(BN_MONT_CTX_set(mont, b, ctx))) |
8d1ebff4 | 2036 | goto err; |
8d1ebff4 | 2037 | ERR_clear_error(); |
0f113f3e | 2038 | |
30bea14b RS |
2039 | if (!TEST_false(BN_mod_exp_mont(a, BN_value_one(), BN_value_one(), |
2040 | b, ctx, NULL))) | |
8d1ebff4 | 2041 | goto err; |
8d1ebff4 RS |
2042 | ERR_clear_error(); |
2043 | ||
30bea14b RS |
2044 | if (!TEST_false(BN_mod_exp_mont_consttime(a, BN_value_one(), BN_value_one(), |
2045 | b, ctx, NULL))) | |
8d1ebff4 | 2046 | goto err; |
8d1ebff4 RS |
2047 | ERR_clear_error(); |
2048 | ||
2049 | st = 1; | |
2050 | err: | |
23a1d5e9 | 2051 | BN_free(a); |
8d1ebff4 RS |
2052 | BN_free(b); |
2053 | BN_free(zero); | |
2054 | BN_MONT_CTX_free(mont); | |
2055 | return st; | |
0f113f3e MC |
2056 | } |
2057 | ||
31a80694 | 2058 | static int test_expmodzero(void) |
0f113f3e | 2059 | { |
30bea14b | 2060 | BIGNUM *a = NULL, *r = NULL, *zero = NULL; |
8d1ebff4 | 2061 | int st = 0; |
0f113f3e | 2062 | |
30bea14b RS |
2063 | if (!TEST_ptr(zero = BN_new()) |
2064 | || !TEST_ptr(a = BN_new()) | |
2065 | || !TEST_ptr(r = BN_new())) | |
0f113f3e | 2066 | goto err; |
8d1ebff4 RS |
2067 | BN_zero(zero); |
2068 | ||
30bea14b | 2069 | if (!TEST_true(BN_mod_exp(r, a, zero, BN_value_one(), NULL)) |
dc352c19 | 2070 | || !TEST_BN_eq_zero(r) |
30bea14b RS |
2071 | || !TEST_true(BN_mod_exp_mont(r, a, zero, BN_value_one(), |
2072 | NULL, NULL)) | |
dc352c19 | 2073 | || !TEST_BN_eq_zero(r) |
30bea14b RS |
2074 | || !TEST_true(BN_mod_exp_mont_consttime(r, a, zero, |
2075 | BN_value_one(), | |
2076 | NULL, NULL)) | |
dc352c19 | 2077 | || !TEST_BN_eq_zero(r) |
30bea14b RS |
2078 | || !TEST_true(BN_mod_exp_mont_word(r, 42, zero, |
2079 | BN_value_one(), NULL, NULL)) | |
dc352c19 | 2080 | || !TEST_BN_eq_zero(r)) |
0f113f3e | 2081 | goto err; |
0f113f3e | 2082 | |
8d1ebff4 RS |
2083 | st = 1; |
2084 | err: | |
2085 | BN_free(zero); | |
2086 | BN_free(a); | |
2087 | BN_free(r); | |
2088 | return st; | |
0f113f3e MC |
2089 | } |
2090 | ||
adf65243 MC |
2091 | static int test_expmodone(void) |
2092 | { | |
2093 | int ret = 0, i; | |
2094 | BIGNUM *r = BN_new(); | |
2095 | BIGNUM *a = BN_new(); | |
2096 | BIGNUM *p = BN_new(); | |
2097 | BIGNUM *m = BN_new(); | |
2098 | ||
2099 | if (!TEST_ptr(r) | |
2100 | || !TEST_ptr(a) | |
2101 | || !TEST_ptr(p) | |
2102 | || !TEST_ptr(p) | |
2103 | || !TEST_ptr(m) | |
2104 | || !TEST_true(BN_set_word(a, 1)) | |
2105 | || !TEST_true(BN_set_word(p, 0)) | |
2106 | || !TEST_true(BN_set_word(m, 1))) | |
2107 | goto err; | |
2108 | ||
2109 | /* Calculate r = 1 ^ 0 mod 1, and check the result is always 0 */ | |
2110 | for (i = 0; i < 2; i++) { | |
2111 | if (!TEST_true(BN_mod_exp(r, a, p, m, NULL)) | |
2112 | || !TEST_BN_eq_zero(r) | |
2113 | || !TEST_true(BN_mod_exp_mont(r, a, p, m, NULL, NULL)) | |
2114 | || !TEST_BN_eq_zero(r) | |
2115 | || !TEST_true(BN_mod_exp_mont_consttime(r, a, p, m, NULL, NULL)) | |
2116 | || !TEST_BN_eq_zero(r) | |
2117 | || !TEST_true(BN_mod_exp_mont_word(r, 1, p, m, NULL, NULL)) | |
2118 | || !TEST_BN_eq_zero(r) | |
2119 | || !TEST_true(BN_mod_exp_simple(r, a, p, m, NULL)) | |
2120 | || !TEST_BN_eq_zero(r) | |
2121 | || !TEST_true(BN_mod_exp_recp(r, a, p, m, NULL)) | |
2122 | || !TEST_BN_eq_zero(r)) | |
2123 | goto err; | |
2124 | /* Repeat for r = 1 ^ 0 mod -1 */ | |
2125 | if (i == 0) | |
2126 | BN_set_negative(m, 1); | |
2127 | } | |
2128 | ||
2129 | ret = 1; | |
2130 | err: | |
2131 | BN_free(r); | |
2132 | BN_free(a); | |
2133 | BN_free(p); | |
2134 | BN_free(m); | |
2135 | return ret; | |
2136 | } | |
2137 | ||
31a80694 | 2138 | static int test_smallprime(void) |
8ff70f33 | 2139 | { |
8d1ebff4 | 2140 | static const int kBits = 10; |
30bea14b | 2141 | BIGNUM *r; |
8d1ebff4 | 2142 | int st = 0; |
8ff70f33 | 2143 | |
30bea14b RS |
2144 | if (!TEST_ptr(r = BN_new()) |
2145 | || !TEST_true(BN_generate_prime_ex(r, (int)kBits, 0, | |
2146 | NULL, NULL, NULL)) | |
2147 | || !TEST_int_eq(BN_num_bits(r), kBits)) | |
8d1ebff4 | 2148 | goto err; |
8ff70f33 | 2149 | |
8d1ebff4 RS |
2150 | st = 1; |
2151 | err: | |
2152 | BN_free(r); | |
2153 | return st; | |
2154 | } | |
8ff70f33 | 2155 | |
7d79d13a SL |
2156 | static int primes[] = { 2, 3, 5, 7, 17863 }; |
2157 | ||
2158 | static int test_is_prime(int i) | |
6e64c560 AL |
2159 | { |
2160 | int ret = 0; | |
30bea14b | 2161 | BIGNUM *r = NULL; |
7d79d13a | 2162 | int trial; |
6e64c560 | 2163 | |
7d79d13a | 2164 | if (!TEST_ptr(r = BN_new())) |
6e64c560 | 2165 | goto err; |
6e64c560 | 2166 | |
7d79d13a SL |
2167 | for (trial = 0; trial <= 1; ++trial) { |
2168 | if (!TEST_true(BN_set_word(r, primes[i])) | |
2169 | || !TEST_int_eq(BN_is_prime_fasttest_ex(r, 1, ctx, trial, NULL), | |
2170 | 1)) | |
2171 | goto err; | |
2172 | } | |
2173 | ||
6e64c560 | 2174 | ret = 1; |
7d79d13a SL |
2175 | err: |
2176 | BN_free(r); | |
2177 | return ret; | |
2178 | } | |
6e64c560 | 2179 | |
7d79d13a SL |
2180 | static int not_primes[] = { -1, 0, 1, 4 }; |
2181 | ||
2182 | static int test_not_prime(int i) | |
2183 | { | |
2184 | int ret = 0; | |
2185 | BIGNUM *r = NULL; | |
2186 | int trial; | |
2187 | ||
2188 | if (!TEST_ptr(r = BN_new())) | |
2189 | goto err; | |
2190 | ||
2191 | for (trial = 0; trial <= 1; ++trial) { | |
2192 | if (!TEST_true(BN_set_word(r, not_primes[i])) | |
2193 | || !TEST_false(BN_is_prime_fasttest_ex(r, 1, ctx, trial, NULL))) | |
2194 | goto err; | |
2195 | } | |
2196 | ||
2197 | ret = 1; | |
6e64c560 AL |
2198 | err: |
2199 | BN_free(r); | |
2200 | return ret; | |
2201 | } | |
2202 | ||
8d1ebff4 | 2203 | static int file_test_run(STANZA *s) |
0f113f3e | 2204 | { |
8d1ebff4 RS |
2205 | static const FILETEST filetests[] = { |
2206 | {"Sum", file_sum}, | |
2207 | {"LShift1", file_lshift1}, | |
2208 | {"LShift", file_lshift}, | |
2209 | {"RShift", file_rshift}, | |
2210 | {"Square", file_square}, | |
2211 | {"Product", file_product}, | |
2212 | {"Quotient", file_quotient}, | |
2213 | {"ModMul", file_modmul}, | |
2214 | {"ModExp", file_modexp}, | |
2215 | {"Exp", file_exp}, | |
2216 | {"ModSqrt", file_modsqrt}, | |
2217 | }; | |
2218 | int numtests = OSSL_NELEM(filetests); | |
2219 | const FILETEST *tp = filetests; | |
0f113f3e | 2220 | |
8d1ebff4 | 2221 | for ( ; --numtests >= 0; tp++) { |
30bea14b RS |
2222 | if (findattr(s, tp->name) != NULL) { |
2223 | if (!tp->func(s)) { | |
ae269dd8 RS |
2224 | TEST_info("%s:%d: Failed %s test", |
2225 | s->test_file, s->start, tp->name); | |
30bea14b RS |
2226 | return 0; |
2227 | } | |
2228 | return 1; | |
2229 | } | |
0f113f3e | 2230 | } |
ae269dd8 | 2231 | TEST_info("%s:%d: Unknown test", s->test_file, s->start); |
8d1ebff4 | 2232 | return 0; |
0f113f3e | 2233 | } |
d02b48c6 | 2234 | |
e1cfd184 | 2235 | static int run_file_tests(int i) |
0f113f3e | 2236 | { |
ae269dd8 | 2237 | STANZA *s = NULL; |
ad887416 | 2238 | char *testfile = test_get_argument(i); |
ae269dd8 | 2239 | int c; |
0f113f3e | 2240 | |
ae269dd8 | 2241 | if (!TEST_ptr(s = OPENSSL_zalloc(sizeof(*s)))) |
e1cfd184 | 2242 | return 0; |
ad887416 | 2243 | if (!test_start_file(s, testfile)) { |
ae269dd8 RS |
2244 | OPENSSL_free(s); |
2245 | return 0; | |
2246 | } | |
e1cfd184 | 2247 | |
8d1ebff4 | 2248 | /* Read test file. */ |
ae269dd8 RS |
2249 | while (!BIO_eof(s->fp) && test_readstanza(s)) { |
2250 | if (s->numpairs == 0) | |
8d1ebff4 | 2251 | continue; |
ae269dd8 RS |
2252 | if (!file_test_run(s)) |
2253 | s->errors++; | |
2254 | s->numtests++; | |
2255 | test_clearstanza(s); | |
0f113f3e | 2256 | } |
ae269dd8 RS |
2257 | test_end_file(s); |
2258 | c = s->errors; | |
2259 | OPENSSL_free(s); | |
8d1ebff4 | 2260 | |
ae269dd8 | 2261 | return c == 0; |
0f113f3e | 2262 | } |
d02b48c6 | 2263 | |
a43ce58f SL |
2264 | const OPTIONS *test_get_options(void) |
2265 | { | |
2266 | enum { OPT_TEST_ENUM }; | |
2267 | static const OPTIONS test_options[] = { | |
2268 | OPT_TEST_OPTIONS_WITH_EXTRA_USAGE("[file...]\n"), | |
2269 | { OPT_HELP_STR, 1, '-', | |
2270 | "file\tFile to run tests on. Normal tests are not run\n" }, | |
2271 | { NULL } | |
2272 | }; | |
2273 | return test_options; | |
2274 | } | |
e1cfd184 | 2275 | |
ad887416 | 2276 | int setup_tests(void) |
0f113f3e | 2277 | { |
ad887416 | 2278 | int n = test_get_argument_count(); |
8d1ebff4 | 2279 | |
e1cfd184 | 2280 | if (!TEST_ptr(ctx = BN_CTX_new())) |
ad887416 | 2281 | return 0; |
e1cfd184 | 2282 | |
ad887416 | 2283 | if (n == 0) { |
e1cfd184 RS |
2284 | ADD_TEST(test_sub); |
2285 | ADD_TEST(test_div_recip); | |
2286 | ADD_TEST(test_mod); | |
2287 | ADD_TEST(test_modexp_mont5); | |
2288 | ADD_TEST(test_kronecker); | |
2289 | ADD_TEST(test_rand); | |
2290 | ADD_TEST(test_bn2padded); | |
2291 | ADD_TEST(test_dec2bn); | |
2292 | ADD_TEST(test_hex2bn); | |
2293 | ADD_TEST(test_asc2bn); | |
2294 | ADD_ALL_TESTS(test_mpi, (int)OSSL_NELEM(kMPITests)); | |
2295 | ADD_TEST(test_negzero); | |
2296 | ADD_TEST(test_badmod); | |
2297 | ADD_TEST(test_expmodzero); | |
adf65243 | 2298 | ADD_TEST(test_expmodone); |
e1cfd184 | 2299 | ADD_TEST(test_smallprime); |
9e5b50b5 | 2300 | ADD_TEST(test_swap); |
8d1ebff4 | 2301 | #ifndef OPENSSL_NO_EC2M |
e1cfd184 RS |
2302 | ADD_TEST(test_gf2m_add); |
2303 | ADD_TEST(test_gf2m_mod); | |
2304 | ADD_TEST(test_gf2m_mul); | |
2305 | ADD_TEST(test_gf2m_sqr); | |
2306 | ADD_TEST(test_gf2m_modinv); | |
2307 | ADD_TEST(test_gf2m_moddiv); | |
2308 | ADD_TEST(test_gf2m_modexp); | |
2309 | ADD_TEST(test_gf2m_modsqrt); | |
2310 | ADD_TEST(test_gf2m_modsolvequad); | |
8d1ebff4 | 2311 | #endif |
7d79d13a SL |
2312 | ADD_ALL_TESTS(test_is_prime, (int)OSSL_NELEM(primes)); |
2313 | ADD_ALL_TESTS(test_not_prime, (int)OSSL_NELEM(not_primes)); | |
e1cfd184 | 2314 | } else { |
ad887416 | 2315 | ADD_ALL_TESTS(run_file_tests, n); |
e1cfd184 | 2316 | } |
ad887416 P |
2317 | return 1; |
2318 | } | |
8d1ebff4 | 2319 | |
ad887416 P |
2320 | void cleanup_tests(void) |
2321 | { | |
8d1ebff4 | 2322 | BN_CTX_free(ctx); |
0f113f3e | 2323 | } |