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Commit | Line | Data |
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440e5d80 | 1 | /* |
3c97136e | 2 | * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
440e5d80 RS |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
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; | |
3c97136e | 126 | err: |
8d1ebff4 RS |
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 | |
8d1ebff4 RS |
141 | /* |
142 | * Return a "random" flag for if a BN should be negated. | |
143 | */ | |
144 | static int rand_neg(void) | |
145 | { | |
146 | static unsigned int neg = 0; | |
147 | static int sign[8] = { 0, 0, 0, 1, 1, 0, 1, 1 }; | |
0f113f3e | 148 | |
8d1ebff4 | 149 | return sign[(neg++) % 8]; |
0f113f3e | 150 | } |
d02b48c6 | 151 | |
9e5b50b5 BB |
152 | static int test_swap(void) |
153 | { | |
154 | BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL; | |
155 | int top, cond, st = 0; | |
156 | ||
157 | if (!TEST_ptr(a = BN_new()) | |
158 | || !TEST_ptr(b = BN_new()) | |
159 | || !TEST_ptr(c = BN_new()) | |
160 | || !TEST_ptr(d = BN_new())) | |
161 | goto err; | |
162 | ||
87d9429c SL |
163 | if (!(TEST_true(BN_bntest_rand(a, 1024, 1, 0)) |
164 | && TEST_true(BN_bntest_rand(b, 1024, 1, 0)) | |
165 | && TEST_ptr(BN_copy(c, a)) | |
166 | && TEST_ptr(BN_copy(d, b)))) | |
167 | goto err; | |
3c97136e | 168 | top = BN_num_bits(a) / BN_BITS2; |
9e5b50b5 BB |
169 | |
170 | /* regular swap */ | |
171 | BN_swap(a, b); | |
172 | if (!equalBN("swap", a, d) | |
173 | || !equalBN("swap", b, c)) | |
174 | goto err; | |
175 | ||
176 | /* conditional swap: true */ | |
177 | cond = 1; | |
178 | BN_consttime_swap(cond, a, b, top); | |
179 | if (!equalBN("cswap true", a, c) | |
180 | || !equalBN("cswap true", b, d)) | |
181 | goto err; | |
182 | ||
183 | /* conditional swap: false */ | |
184 | cond = 0; | |
185 | BN_consttime_swap(cond, a, b, top); | |
186 | if (!equalBN("cswap false", a, c) | |
187 | || !equalBN("cswap false", b, d)) | |
188 | goto err; | |
189 | ||
190 | /* same tests but checking flag swap */ | |
191 | BN_set_flags(a, BN_FLG_CONSTTIME); | |
192 | ||
193 | BN_swap(a, b); | |
194 | if (!equalBN("swap, flags", a, d) | |
195 | || !equalBN("swap, flags", b, c) | |
196 | || !TEST_true(BN_get_flags(b, BN_FLG_CONSTTIME)) | |
197 | || !TEST_false(BN_get_flags(a, BN_FLG_CONSTTIME))) | |
198 | goto err; | |
199 | ||
200 | cond = 1; | |
201 | BN_consttime_swap(cond, a, b, top); | |
202 | if (!equalBN("cswap true, flags", a, c) | |
203 | || !equalBN("cswap true, flags", b, d) | |
204 | || !TEST_true(BN_get_flags(a, BN_FLG_CONSTTIME)) | |
205 | || !TEST_false(BN_get_flags(b, BN_FLG_CONSTTIME))) | |
206 | goto err; | |
207 | ||
208 | cond = 0; | |
209 | BN_consttime_swap(cond, a, b, top); | |
210 | if (!equalBN("cswap false, flags", a, c) | |
211 | || !equalBN("cswap false, flags", b, d) | |
212 | || !TEST_true(BN_get_flags(a, BN_FLG_CONSTTIME)) | |
213 | || !TEST_false(BN_get_flags(b, BN_FLG_CONSTTIME))) | |
214 | goto err; | |
215 | ||
216 | st = 1; | |
217 | err: | |
218 | BN_free(a); | |
219 | BN_free(b); | |
220 | BN_free(c); | |
221 | BN_free(d); | |
222 | return st; | |
223 | } | |
224 | ||
31a80694 | 225 | static int test_sub(void) |
0f113f3e | 226 | { |
30bea14b RS |
227 | BIGNUM *a = NULL, *b = NULL, *c = NULL; |
228 | int i, st = 0; | |
0f113f3e | 229 | |
30bea14b RS |
230 | if (!TEST_ptr(a = BN_new()) |
231 | || !TEST_ptr(b = BN_new()) | |
232 | || !TEST_ptr(c = BN_new())) | |
233 | goto err; | |
0f113f3e | 234 | |
8d1ebff4 RS |
235 | for (i = 0; i < NUM0 + NUM1; i++) { |
236 | if (i < NUM1) { | |
87d9429c SL |
237 | if (!(TEST_true(BN_bntest_rand(a, 512, 0, 0))) |
238 | && TEST_ptr(BN_copy(b, a)) | |
239 | && TEST_int_ne(BN_set_bit(a, i), 0) | |
240 | && TEST_true(BN_add_word(b, i))) | |
30bea14b | 241 | goto err; |
0f113f3e | 242 | } else { |
87d9429c SL |
243 | if (!TEST_true(BN_bntest_rand(b, 400 + i - NUM1, 0, 0))) |
244 | goto err; | |
2b1aa198 RL |
245 | BN_set_negative(a, rand_neg()); |
246 | BN_set_negative(b, rand_neg()); | |
0f113f3e | 247 | } |
87d9429c SL |
248 | if (!(TEST_true(BN_sub(c, a, b)) |
249 | && TEST_true(BN_add(c, c, b)) | |
250 | && TEST_true(BN_sub(c, c, a)) | |
251 | && TEST_BN_eq_zero(c))) | |
30bea14b | 252 | goto err; |
0f113f3e | 253 | } |
30bea14b | 254 | st = 1; |
3c97136e | 255 | err: |
0f113f3e MC |
256 | BN_free(a); |
257 | BN_free(b); | |
258 | BN_free(c); | |
30bea14b | 259 | return st; |
0f113f3e | 260 | } |
8169dd73 | 261 | |
31a80694 | 262 | static int test_div_recip(void) |
0f113f3e | 263 | { |
30bea14b RS |
264 | BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL, *e = NULL; |
265 | BN_RECP_CTX *recp = NULL; | |
266 | int st = 0, i; | |
0f113f3e | 267 | |
30bea14b RS |
268 | if (!TEST_ptr(a = BN_new()) |
269 | || !TEST_ptr(b = BN_new()) | |
270 | || !TEST_ptr(c = BN_new()) | |
271 | || !TEST_ptr(d = BN_new()) | |
272 | || !TEST_ptr(e = BN_new()) | |
273 | || !TEST_ptr(recp = BN_RECP_CTX_new())) | |
274 | goto err; | |
0f113f3e | 275 | |
8d1ebff4 RS |
276 | for (i = 0; i < NUM0 + NUM1; i++) { |
277 | if (i < NUM1) { | |
87d9429c SL |
278 | if (!(TEST_true(BN_bntest_rand(a, 400, 0, 0)) |
279 | && TEST_ptr(BN_copy(b, a)) | |
280 | && TEST_true(BN_lshift(a, a, i)) | |
281 | && TEST_true(BN_add_word(a, i)))) | |
282 | goto err; | |
283 | } else { | |
284 | if (!(TEST_true(BN_bntest_rand(b, 50 + 3 * (i - NUM1), 0, 0)))) | |
285 | goto err; | |
286 | } | |
2b1aa198 RL |
287 | BN_set_negative(a, rand_neg()); |
288 | BN_set_negative(b, rand_neg()); | |
87d9429c SL |
289 | if (!(TEST_true(BN_RECP_CTX_set(recp, b, ctx)) |
290 | && TEST_true(BN_div_recp(d, c, a, recp, ctx)) | |
291 | && TEST_true(BN_mul(e, d, b, ctx)) | |
292 | && TEST_true(BN_add(d, e, c)) | |
293 | && TEST_true(BN_sub(d, d, a)) | |
294 | && TEST_BN_eq_zero(d))) | |
30bea14b | 295 | goto err; |
0f113f3e | 296 | } |
30bea14b | 297 | st = 1; |
3c97136e | 298 | err: |
0f113f3e MC |
299 | BN_free(a); |
300 | BN_free(b); | |
301 | BN_free(c); | |
302 | BN_free(d); | |
303 | BN_free(e); | |
304 | BN_RECP_CTX_free(recp); | |
30bea14b | 305 | return st; |
0f113f3e | 306 | } |
d02b48c6 | 307 | |
31a80694 | 308 | static int test_mod(void) |
0f113f3e | 309 | { |
30bea14b RS |
310 | BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL, *e = NULL; |
311 | int st = 0, i; | |
0f113f3e | 312 | |
30bea14b RS |
313 | if (!TEST_ptr(a = BN_new()) |
314 | || !TEST_ptr(b = BN_new()) | |
315 | || !TEST_ptr(c = BN_new()) | |
316 | || !TEST_ptr(d = BN_new()) | |
317 | || !TEST_ptr(e = BN_new())) | |
318 | goto err; | |
0f113f3e | 319 | |
87d9429c SL |
320 | if (!(TEST_true(BN_bntest_rand(a, 1024, 0, 0)))) |
321 | goto err; | |
8d1ebff4 | 322 | for (i = 0; i < NUM0; i++) { |
87d9429c SL |
323 | if (!(TEST_true(BN_bntest_rand(b, 450 + i * 10, 0, 0)))) |
324 | goto err; | |
2b1aa198 RL |
325 | BN_set_negative(a, rand_neg()); |
326 | BN_set_negative(b, rand_neg()); | |
87d9429c SL |
327 | if (!(TEST_true(BN_mod(c, a, b, ctx)) |
328 | && TEST_true(BN_div(d, e, a, b, ctx)) | |
329 | && TEST_true(BN_sub(e, e, c)) | |
330 | && TEST_BN_eq_zero(e))) | |
30bea14b | 331 | goto err; |
0f113f3e | 332 | } |
30bea14b | 333 | st = 1; |
3c97136e | 334 | err: |
0f113f3e MC |
335 | BN_free(a); |
336 | BN_free(b); | |
337 | BN_free(c); | |
338 | BN_free(d); | |
339 | BN_free(e); | |
30bea14b | 340 | return st; |
0f113f3e | 341 | } |
d02b48c6 | 342 | |
26a39fa9 RS |
343 | static const char *bn1strings[] = { |
344 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
345 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
346 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
347 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
348 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
349 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
350 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
351 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000000000FFFFFFFF00", | |
352 | "0000000000000000000000000000000000000000000000000000000000000000", | |
353 | "0000000000000000000000000000000000000000000000000000000000000000", | |
354 | "0000000000000000000000000000000000000000000000000000000000000000", | |
355 | "0000000000000000000000000000000000000000000000000000000000000000", | |
356 | "0000000000000000000000000000000000000000000000000000000000000000", | |
357 | "0000000000000000000000000000000000000000000000000000000000000000", | |
358 | "0000000000000000000000000000000000000000000000000000000000000000", | |
359 | "00000000000000000000000000000000000000000000000000FFFFFFFFFFFFFF", | |
360 | NULL | |
361 | }; | |
362 | ||
363 | static const char *bn2strings[] = { | |
364 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
365 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
366 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
367 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
368 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
369 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
370 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
371 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000000000FFFFFFFF0000000000", | |
372 | "0000000000000000000000000000000000000000000000000000000000000000", | |
373 | "0000000000000000000000000000000000000000000000000000000000000000", | |
374 | "0000000000000000000000000000000000000000000000000000000000000000", | |
375 | "0000000000000000000000000000000000000000000000000000000000000000", | |
376 | "0000000000000000000000000000000000000000000000000000000000000000", | |
377 | "0000000000000000000000000000000000000000000000000000000000000000", | |
378 | "0000000000000000000000000000000000000000000000000000000000000000", | |
379 | "000000000000000000000000000000000000000000FFFFFFFFFFFFFF00000000", | |
380 | NULL | |
381 | }; | |
382 | ||
8d1ebff4 RS |
383 | /* |
384 | * Test constant-time modular exponentiation with 1024-bit inputs, which on | |
385 | * x86_64 cause a different code branch to be taken. | |
386 | */ | |
31a80694 | 387 | static int test_modexp_mont5(void) |
0f113f3e | 388 | { |
30bea14b RS |
389 | BIGNUM *a = NULL, *p = NULL, *m = NULL, *d = NULL, *e = NULL; |
390 | BIGNUM *b = NULL, *n = NULL, *c = NULL; | |
391 | BN_MONT_CTX *mont = NULL; | |
30bea14b | 392 | int st = 0; |
0f113f3e | 393 | |
30bea14b RS |
394 | if (!TEST_ptr(a = BN_new()) |
395 | || !TEST_ptr(p = BN_new()) | |
396 | || !TEST_ptr(m = BN_new()) | |
397 | || !TEST_ptr(d = BN_new()) | |
398 | || !TEST_ptr(e = BN_new()) | |
399 | || !TEST_ptr(b = BN_new()) | |
400 | || !TEST_ptr(n = BN_new()) | |
401 | || !TEST_ptr(c = BN_new()) | |
402 | || !TEST_ptr(mont = BN_MONT_CTX_new())) | |
403 | goto err; | |
0f113f3e | 404 | |
87d9429c SL |
405 | /* must be odd for montgomery */ |
406 | if (!(TEST_true(BN_bntest_rand(m, 1024, 0, 1)) | |
407 | /* Zero exponent */ | |
408 | && TEST_true(BN_bntest_rand(a, 1024, 0, 0)))) | |
409 | goto err; | |
8d1ebff4 | 410 | BN_zero(p); |
87d9429c | 411 | |
30bea14b RS |
412 | if (!TEST_true(BN_mod_exp_mont_consttime(d, a, p, m, ctx, NULL))) |
413 | goto err; | |
dc352c19 | 414 | if (!TEST_BN_eq_one(d)) |
30bea14b | 415 | goto err; |
0f113f3e | 416 | |
8d1ebff4 | 417 | /* Regression test for carry bug in mulx4x_mont */ |
87d9429c | 418 | if (!(TEST_true(BN_hex2bn(&a, |
8d1ebff4 RS |
419 | "7878787878787878787878787878787878787878787878787878787878787878" |
420 | "7878787878787878787878787878787878787878787878787878787878787878" | |
421 | "7878787878787878787878787878787878787878787878787878787878787878" | |
87d9429c SL |
422 | "7878787878787878787878787878787878787878787878787878787878787878")) |
423 | && TEST_true(BN_hex2bn(&b, | |
8d1ebff4 RS |
424 | "095D72C08C097BA488C5E439C655A192EAFB6380073D8C2664668EDDB4060744" |
425 | "E16E57FB4EDB9AE10A0CEFCDC28A894F689A128379DB279D48A2E20849D68593" | |
426 | "9B7803BCF46CEBF5C533FB0DD35B080593DE5472E3FE5DB951B8BFF9B4CB8F03" | |
87d9429c SL |
427 | "9CC638A5EE8CDD703719F8000E6A9F63BEED5F2FCD52FF293EA05A251BB4AB81")) |
428 | && TEST_true(BN_hex2bn(&n, | |
8d1ebff4 RS |
429 | "D78AF684E71DB0C39CFF4E64FB9DB567132CB9C50CC98009FEB820B26F2DED9B" |
430 | "91B9B5E2B83AE0AE4EB4E0523CA726BFBE969B89FD754F674CE99118C3F2D1C5" | |
431 | "D81FDC7C54E02B60262B241D53C040E99E45826ECA37A804668E690E1AFC1CA4" | |
87d9429c SL |
432 | "2C9A15D84D4954425F0B7642FC0BD9D7B24E2618D2DCC9B729D944BADACFDDAF")))) |
433 | goto err; | |
434 | ||
435 | if (!(TEST_true(BN_MONT_CTX_set(mont, n, ctx)) | |
436 | && TEST_true(BN_mod_mul_montgomery(c, a, b, mont, ctx)) | |
437 | && TEST_true(BN_mod_mul_montgomery(d, b, a, mont, ctx)) | |
438 | && TEST_BN_eq(c, d))) | |
30bea14b | 439 | goto err; |
0f113f3e | 440 | |
3e7a4963 | 441 | /* Regression test for carry bug in sqr[x]8x_mont */ |
87d9429c SL |
442 | if (!(TEST_true(parse_bigBN(&n, bn1strings)) |
443 | && TEST_true(parse_bigBN(&a, bn2strings)))) | |
444 | goto err; | |
26a39fa9 | 445 | BN_free(b); |
87d9429c SL |
446 | if (!(TEST_ptr(b = BN_dup(a)) |
447 | && TEST_true(BN_MONT_CTX_set(mont, n, ctx)) | |
448 | && TEST_true(BN_mod_mul_montgomery(c, a, a, mont, ctx)) | |
449 | && TEST_true(BN_mod_mul_montgomery(d, a, b, mont, ctx)) | |
450 | && TEST_BN_eq(c, d))) | |
30bea14b | 451 | goto err; |
3e7a4963 | 452 | |
420b88ce AP |
453 | /* Regression test for carry bug in bn_sqrx8x_internal */ |
454 | { | |
455 | static const char *ahex[] = { | |
456 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
457 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
458 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
459 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
460 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF8FFEADBCFC4DAE7FFF908E92820306B", | |
461 | "9544D954000000006C0000000000000000000000000000000000000000000000", | |
462 | "00000000000000000000FF030202FFFFF8FFEBDBCFC4DAE7FFF908E92820306B", | |
463 | "9544D954000000006C000000FF0302030000000000FFFFFFFFFFFFFFFFFFFFFF", | |
464 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF01FC00FF02FFFFFFFF", | |
465 | "00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00FCFD", | |
466 | "FCFFFFFFFFFF000000000000000000FF0302030000000000FFFFFFFFFFFFFFFF", | |
467 | "FF00FCFDFDFF030202FF00000000FFFFFFFFFFFFFFFFFF00FCFDFCFFFFFFFFFF", | |
468 | NULL | |
4483fbae | 469 | }; |
420b88ce AP |
470 | static const char *nhex[] = { |
471 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
472 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
473 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
474 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
475 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF8F8F8F8000000", | |
476 | "00000010000000006C0000000000000000000000000000000000000000000000", | |
477 | "00000000000000000000000000000000000000FFFFFFFFFFFFF8F8F8F8000000", | |
478 | "00000010000000006C000000000000000000000000FFFFFFFFFFFFFFFFFFFFFF", | |
479 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
480 | "00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
481 | "FFFFFFFFFFFF000000000000000000000000000000000000FFFFFFFFFFFFFFFF", | |
482 | "FFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
483 | NULL | |
4483fbae F |
484 | }; |
485 | ||
87d9429c SL |
486 | if (!(TEST_true(parse_bigBN(&a, ahex)) |
487 | && TEST_true(parse_bigBN(&n, nhex)))) | |
488 | goto err; | |
420b88ce AP |
489 | } |
490 | BN_free(b); | |
87d9429c SL |
491 | if (!(TEST_ptr(b = BN_dup(a)) |
492 | && TEST_true(BN_MONT_CTX_set(mont, n, ctx)))) | |
493 | goto err; | |
494 | ||
f91e026e BE |
495 | if (!TEST_true(BN_mod_mul_montgomery(c, a, a, mont, ctx)) |
496 | || !TEST_true(BN_mod_mul_montgomery(d, a, b, mont, ctx)) | |
497 | || !TEST_BN_eq(c, d)) | |
498 | goto err; | |
499 | ||
500 | /* Regression test for bug in BN_from_montgomery_word */ | |
87d9429c | 501 | if (!(TEST_true(BN_hex2bn(&a, |
f91e026e BE |
502 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" |
503 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
87d9429c SL |
504 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF")) |
505 | && TEST_true(BN_hex2bn(&n, | |
f91e026e | 506 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" |
87d9429c SL |
507 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF")) |
508 | && TEST_true(BN_MONT_CTX_set(mont, n, ctx)) | |
509 | && TEST_false(BN_mod_mul_montgomery(d, a, a, mont, ctx)))) | |
420b88ce AP |
510 | goto err; |
511 | ||
77d75993 | 512 | /* Regression test for bug in rsaz_1024_mul_avx2 */ |
87d9429c | 513 | if (!(TEST_true(BN_hex2bn(&a, |
77d75993 AP |
514 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" |
515 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
516 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
87d9429c SL |
517 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF2020202020DF")) |
518 | && TEST_true(BN_hex2bn(&b, | |
77d75993 AP |
519 | "2020202020202020202020202020202020202020202020202020202020202020" |
520 | "2020202020202020202020202020202020202020202020202020202020202020" | |
521 | "20202020202020FF202020202020202020202020202020202020202020202020" | |
87d9429c SL |
522 | "2020202020202020202020202020202020202020202020202020202020202020")) |
523 | && TEST_true(BN_hex2bn(&n, | |
77d75993 AP |
524 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" |
525 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
526 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
87d9429c SL |
527 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF2020202020FF")) |
528 | && TEST_true(BN_MONT_CTX_set(mont, n, ctx)) | |
529 | && TEST_true(BN_mod_exp_mont_consttime(c, a, b, n, ctx, mont)) | |
530 | && TEST_true(BN_mod_exp_mont(d, a, b, n, ctx, mont)) | |
531 | && TEST_BN_eq(c, d))) | |
77d75993 AP |
532 | goto err; |
533 | ||
781378da DB |
534 | /* |
535 | * rsaz_1024_mul_avx2 expects fully-reduced inputs. | |
536 | * BN_mod_exp_mont_consttime should reduce the input first. | |
537 | */ | |
87d9429c | 538 | if (!(TEST_true(BN_hex2bn(&a, |
781378da DB |
539 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" |
540 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
541 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
87d9429c SL |
542 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF2020202020DF")) |
543 | && TEST_true(BN_hex2bn(&b, | |
781378da DB |
544 | "1FA53F26F8811C58BE0357897AA5E165693230BC9DF5F01DFA6A2D59229EC69D" |
545 | "9DE6A89C36E3B6957B22D6FAAD5A3C73AE587B710DBE92E83D3A9A3339A085CB" | |
546 | "B58F508CA4F837924BB52CC1698B7FDC2FD74362456A595A5B58E38E38E38E38" | |
87d9429c SL |
547 | "E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E")) |
548 | && TEST_true(BN_hex2bn(&n, | |
781378da DB |
549 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" |
550 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
551 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
87d9429c SL |
552 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF2020202020DF")) |
553 | && TEST_true(BN_MONT_CTX_set(mont, n, ctx)) | |
554 | && TEST_true(BN_mod_exp_mont_consttime(c, a, b, n, ctx, mont)))) | |
555 | goto err; | |
781378da DB |
556 | BN_zero(d); |
557 | if (!TEST_BN_eq(c, d)) | |
558 | goto err; | |
559 | ||
8d1ebff4 | 560 | /* Zero input */ |
87d9429c SL |
561 | if (!TEST_true(BN_bntest_rand(p, 1024, 0, 0))) |
562 | goto err; | |
8d1ebff4 | 563 | BN_zero(a); |
30bea14b | 564 | if (!TEST_true(BN_mod_exp_mont_consttime(d, a, p, m, ctx, NULL)) |
dc352c19 | 565 | || !TEST_BN_eq_zero(d)) |
30bea14b RS |
566 | goto err; |
567 | ||
8d1ebff4 RS |
568 | /* |
569 | * Craft an input whose Montgomery representation is 1, i.e., shorter | |
570 | * than the modulus m, in order to test the const time precomputation | |
571 | * scattering/gathering. | |
572 | */ | |
87d9429c SL |
573 | if (!(TEST_true(BN_one(a)) |
574 | && TEST_true(BN_MONT_CTX_set(mont, m, ctx)))) | |
575 | goto err; | |
30bea14b RS |
576 | if (!TEST_true(BN_from_montgomery(e, a, mont, ctx)) |
577 | || !TEST_true(BN_mod_exp_mont_consttime(d, e, p, m, ctx, NULL)) | |
578 | || !TEST_true(BN_mod_exp_simple(a, e, p, m, ctx)) | |
dc352c19 | 579 | || !TEST_BN_eq(a, d)) |
30bea14b RS |
580 | goto err; |
581 | ||
8d1ebff4 | 582 | /* Finally, some regular test vectors. */ |
87d9429c SL |
583 | if (!(TEST_true(BN_bntest_rand(e, 1024, 0, 0)) |
584 | && TEST_true(BN_mod_exp_mont_consttime(d, e, p, m, ctx, NULL)) | |
585 | && TEST_true(BN_mod_exp_simple(a, e, p, m, ctx)) | |
586 | && TEST_BN_eq(a, d))) | |
30bea14b RS |
587 | goto err; |
588 | ||
589 | st = 1; | |
590 | ||
3c97136e | 591 | err: |
0f113f3e MC |
592 | BN_MONT_CTX_free(mont); |
593 | BN_free(a); | |
8d1ebff4 RS |
594 | BN_free(p); |
595 | BN_free(m); | |
0f113f3e | 596 | BN_free(d); |
8d1ebff4 RS |
597 | BN_free(e); |
598 | BN_free(b); | |
0f113f3e | 599 | BN_free(n); |
8d1ebff4 | 600 | BN_free(c); |
30bea14b | 601 | return st; |
0f113f3e | 602 | } |
d02b48c6 | 603 | |
8d1ebff4 | 604 | #ifndef OPENSSL_NO_EC2M |
31a80694 | 605 | static int test_gf2m_add(void) |
0f113f3e | 606 | { |
30bea14b | 607 | BIGNUM *a = NULL, *b = NULL, *c = NULL; |
8d1ebff4 | 608 | int i, st = 0; |
0f113f3e | 609 | |
30bea14b RS |
610 | if (!TEST_ptr(a = BN_new()) |
611 | || !TEST_ptr(b = BN_new()) | |
612 | || !TEST_ptr(c = BN_new())) | |
613 | goto err; | |
0f113f3e | 614 | |
8d1ebff4 | 615 | for (i = 0; i < NUM0; i++) { |
87d9429c SL |
616 | if (!(TEST_true(BN_rand(a, 512, 0, 0)) |
617 | && TEST_ptr(BN_copy(b, BN_value_one())))) | |
618 | goto err; | |
2b1aa198 RL |
619 | BN_set_negative(a, rand_neg()); |
620 | BN_set_negative(b, rand_neg()); | |
87d9429c SL |
621 | if (!(TEST_true(BN_GF2m_add(c, a, b)) |
622 | /* Test that two added values have the correct parity. */ | |
623 | && TEST_false((BN_is_odd(a) && BN_is_odd(c)) | |
624 | || (!BN_is_odd(a) && !BN_is_odd(c))))) | |
8d1ebff4 | 625 | goto err; |
87d9429c SL |
626 | if (!(TEST_true(BN_GF2m_add(c, c, c)) |
627 | /* Test that c + c = 0. */ | |
628 | && TEST_BN_eq_zero(c))) | |
8d1ebff4 | 629 | goto err; |
0f113f3e | 630 | } |
8d1ebff4 RS |
631 | st = 1; |
632 | err: | |
0f113f3e MC |
633 | BN_free(a); |
634 | BN_free(b); | |
635 | BN_free(c); | |
8d1ebff4 | 636 | return st; |
0f113f3e | 637 | } |
d02b48c6 | 638 | |
31a80694 | 639 | static int test_gf2m_mod(void) |
0f113f3e | 640 | { |
30bea14b | 641 | BIGNUM *a = NULL, *b[2] = {NULL,NULL}, *c = NULL, *d = NULL, *e = NULL; |
8d1ebff4 | 642 | int i, j, st = 0; |
0f113f3e | 643 | |
30bea14b RS |
644 | if (!TEST_ptr(a = BN_new()) |
645 | || !TEST_ptr(b[0] = BN_new()) | |
646 | || !TEST_ptr(b[1] = BN_new()) | |
647 | || !TEST_ptr(c = BN_new()) | |
648 | || !TEST_ptr(d = BN_new()) | |
649 | || !TEST_ptr(e = BN_new())) | |
650 | goto err; | |
0f113f3e | 651 | |
87d9429c SL |
652 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
653 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
654 | goto err; | |
0f113f3e | 655 | |
8d1ebff4 | 656 | for (i = 0; i < NUM0; i++) { |
87d9429c SL |
657 | if (!TEST_true(BN_bntest_rand(a, 1024, 0, 0))) |
658 | goto err; | |
8d1ebff4 | 659 | for (j = 0; j < 2; j++) { |
87d9429c SL |
660 | if (!(TEST_true(BN_GF2m_mod(c, a, b[j])) |
661 | && TEST_true(BN_GF2m_add(d, a, c)) | |
662 | && TEST_true(BN_GF2m_mod(e, d, b[j])) | |
663 | /* Test that a + (a mod p) mod p == 0. */ | |
664 | && TEST_BN_eq_zero(e))) | |
8d1ebff4 | 665 | goto err; |
0f113f3e MC |
666 | } |
667 | } | |
8d1ebff4 RS |
668 | st = 1; |
669 | err: | |
0f113f3e | 670 | BN_free(a); |
8d1ebff4 RS |
671 | BN_free(b[0]); |
672 | BN_free(b[1]); | |
0f113f3e MC |
673 | BN_free(c); |
674 | BN_free(d); | |
675 | BN_free(e); | |
8d1ebff4 | 676 | return st; |
0f113f3e | 677 | } |
d02b48c6 | 678 | |
31a80694 | 679 | static int test_gf2m_mul(void) |
0f113f3e | 680 | { |
30bea14b RS |
681 | BIGNUM *a, *b[2] = {NULL, NULL}, *c = NULL, *d = NULL; |
682 | BIGNUM *e = NULL, *f = NULL, *g = NULL, *h = NULL; | |
8d1ebff4 | 683 | int i, j, st = 0; |
30bea14b RS |
684 | |
685 | if (!TEST_ptr(a = BN_new()) | |
686 | || !TEST_ptr(b[0] = BN_new()) | |
687 | || !TEST_ptr(b[1] = BN_new()) | |
688 | || !TEST_ptr(c = BN_new()) | |
689 | || !TEST_ptr(d = BN_new()) | |
690 | || !TEST_ptr(e = BN_new()) | |
691 | || !TEST_ptr(f = BN_new()) | |
692 | || !TEST_ptr(g = BN_new()) | |
693 | || !TEST_ptr(h = BN_new())) | |
694 | goto err; | |
0f113f3e | 695 | |
87d9429c SL |
696 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
697 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
698 | goto err; | |
0f113f3e | 699 | |
8d1ebff4 | 700 | for (i = 0; i < NUM0; i++) { |
87d9429c SL |
701 | if (!(TEST_true(BN_bntest_rand(a, 1024, 0, 0)) |
702 | && TEST_true(BN_bntest_rand(c, 1024, 0, 0)) | |
703 | && TEST_true(BN_bntest_rand(d, 1024, 0, 0)))) | |
704 | goto err; | |
8d1ebff4 | 705 | for (j = 0; j < 2; j++) { |
87d9429c SL |
706 | if (!(TEST_true(BN_GF2m_mod_mul(e, a, c, b[j], ctx)) |
707 | && TEST_true(BN_GF2m_add(f, a, d)) | |
708 | && TEST_true(BN_GF2m_mod_mul(g, f, c, b[j], ctx)) | |
709 | && TEST_true(BN_GF2m_mod_mul(h, d, c, b[j], ctx)) | |
710 | && TEST_true(BN_GF2m_add(f, e, g)) | |
711 | && TEST_true(BN_GF2m_add(f, f, h)) | |
712 | /* Test that (a+d)*c = a*c + d*c. */ | |
713 | && TEST_BN_eq_zero(f))) | |
8d1ebff4 | 714 | goto err; |
0f113f3e | 715 | } |
29851264 | 716 | } |
8d1ebff4 | 717 | st = 1; |
30bea14b | 718 | |
8d1ebff4 | 719 | err: |
0f113f3e | 720 | BN_free(a); |
8d1ebff4 RS |
721 | BN_free(b[0]); |
722 | BN_free(b[1]); | |
0f113f3e MC |
723 | BN_free(c); |
724 | BN_free(d); | |
725 | BN_free(e); | |
8d1ebff4 RS |
726 | BN_free(f); |
727 | BN_free(g); | |
728 | BN_free(h); | |
729 | return st; | |
0f113f3e | 730 | } |
d02b48c6 | 731 | |
31a80694 | 732 | static int test_gf2m_sqr(void) |
0f113f3e | 733 | { |
30bea14b | 734 | BIGNUM *a = NULL, *b[2] = {NULL,NULL}, *c = NULL, *d = NULL; |
8d1ebff4 | 735 | int i, j, st = 0; |
0f113f3e | 736 | |
30bea14b RS |
737 | if (!TEST_ptr(a = BN_new()) |
738 | || !TEST_ptr(b[0] = BN_new()) | |
739 | || !TEST_ptr(b[1] = BN_new()) | |
740 | || !TEST_ptr(c = BN_new()) | |
741 | || !TEST_ptr(d = BN_new())) | |
742 | goto err; | |
a9009e51 | 743 | |
87d9429c SL |
744 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
745 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
746 | goto err; | |
0f113f3e | 747 | |
8d1ebff4 | 748 | for (i = 0; i < NUM0; i++) { |
87d9429c SL |
749 | if (!TEST_true(BN_bntest_rand(a, 1024, 0, 0))) |
750 | goto err; | |
8d1ebff4 | 751 | for (j = 0; j < 2; j++) { |
87d9429c SL |
752 | if (!(TEST_true(BN_GF2m_mod_sqr(c, a, b[j], ctx)) |
753 | && TEST_true(BN_copy(d, a)) | |
754 | && TEST_true(BN_GF2m_mod_mul(d, a, d, b[j], ctx)) | |
755 | && TEST_true(BN_GF2m_add(d, c, d)) | |
756 | /* Test that a*a = a^2. */ | |
757 | && TEST_BN_eq_zero(d))) | |
8d1ebff4 | 758 | goto err; |
0f113f3e MC |
759 | } |
760 | } | |
8d1ebff4 RS |
761 | st = 1; |
762 | err: | |
0f113f3e | 763 | BN_free(a); |
8d1ebff4 RS |
764 | BN_free(b[0]); |
765 | BN_free(b[1]); | |
0f113f3e MC |
766 | BN_free(c); |
767 | BN_free(d); | |
8d1ebff4 | 768 | return st; |
0f113f3e MC |
769 | } |
770 | ||
31a80694 | 771 | static int test_gf2m_modinv(void) |
0f113f3e | 772 | { |
30bea14b | 773 | BIGNUM *a = NULL, *b[2] = {NULL,NULL}, *c = NULL, *d = NULL; |
8d1ebff4 | 774 | int i, j, st = 0; |
0f113f3e | 775 | |
30bea14b RS |
776 | if (!TEST_ptr(a = BN_new()) |
777 | || !TEST_ptr(b[0] = BN_new()) | |
778 | || !TEST_ptr(b[1] = BN_new()) | |
779 | || !TEST_ptr(c = BN_new()) | |
780 | || !TEST_ptr(d = BN_new())) | |
781 | goto err; | |
0f113f3e | 782 | |
87d9429c SL |
783 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
784 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
785 | goto err; | |
0f113f3e | 786 | |
8d1ebff4 | 787 | for (i = 0; i < NUM0; i++) { |
87d9429c SL |
788 | if (!TEST_true(BN_bntest_rand(a, 512, 0, 0))) |
789 | goto err; | |
0f113f3e | 790 | for (j = 0; j < 2; j++) { |
87d9429c SL |
791 | if (!(TEST_true(BN_GF2m_mod_inv(c, a, b[j], ctx)) |
792 | && TEST_true(BN_GF2m_mod_mul(d, a, c, b[j], ctx)) | |
793 | /* Test that ((1/a)*a) = 1. */ | |
794 | && TEST_BN_eq_one(d))) | |
0f113f3e | 795 | goto err; |
0f113f3e MC |
796 | } |
797 | } | |
8d1ebff4 | 798 | st = 1; |
0f113f3e MC |
799 | err: |
800 | BN_free(a); | |
801 | BN_free(b[0]); | |
802 | BN_free(b[1]); | |
803 | BN_free(c); | |
804 | BN_free(d); | |
8d1ebff4 | 805 | return st; |
0f113f3e MC |
806 | } |
807 | ||
31a80694 | 808 | static int test_gf2m_moddiv(void) |
0f113f3e | 809 | { |
30bea14b RS |
810 | BIGNUM *a = NULL, *b[2] = {NULL,NULL}, *c = NULL, *d = NULL; |
811 | BIGNUM *e = NULL, *f = NULL; | |
8d1ebff4 | 812 | int i, j, st = 0; |
0f113f3e | 813 | |
30bea14b RS |
814 | if (!TEST_ptr(a = BN_new()) |
815 | || !TEST_ptr(b[0] = BN_new()) | |
816 | || !TEST_ptr(b[1] = BN_new()) | |
817 | || !TEST_ptr(c = BN_new()) | |
818 | || !TEST_ptr(d = BN_new()) | |
819 | || !TEST_ptr(e = BN_new()) | |
820 | || !TEST_ptr(f = BN_new())) | |
821 | goto err; | |
0f113f3e | 822 | |
87d9429c SL |
823 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
824 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
825 | goto err; | |
0f113f3e | 826 | |
8d1ebff4 | 827 | for (i = 0; i < NUM0; i++) { |
87d9429c SL |
828 | if (!(TEST_true(BN_bntest_rand(a, 512, 0, 0)) |
829 | && TEST_true(BN_bntest_rand(c, 512, 0, 0)))) | |
830 | goto err; | |
0f113f3e | 831 | for (j = 0; j < 2; j++) { |
87d9429c SL |
832 | if (!(TEST_true(BN_GF2m_mod_div(d, a, c, b[j], ctx)) |
833 | && TEST_true(BN_GF2m_mod_mul(e, d, c, b[j], ctx)) | |
834 | && TEST_true(BN_GF2m_mod_div(f, a, e, b[j], ctx)) | |
835 | /* Test that ((a/c)*c)/a = 1. */ | |
836 | && TEST_BN_eq_one(f))) | |
0f113f3e | 837 | goto err; |
0f113f3e MC |
838 | } |
839 | } | |
8d1ebff4 | 840 | st = 1; |
0f113f3e MC |
841 | err: |
842 | BN_free(a); | |
843 | BN_free(b[0]); | |
844 | BN_free(b[1]); | |
845 | BN_free(c); | |
846 | BN_free(d); | |
847 | BN_free(e); | |
848 | BN_free(f); | |
8d1ebff4 | 849 | return st; |
0f113f3e MC |
850 | } |
851 | ||
31a80694 | 852 | static int test_gf2m_modexp(void) |
0f113f3e | 853 | { |
30bea14b RS |
854 | BIGNUM *a = NULL, *b[2] = {NULL,NULL}, *c = NULL, *d = NULL; |
855 | BIGNUM *e = NULL, *f = NULL; | |
8d1ebff4 | 856 | int i, j, st = 0; |
0f113f3e | 857 | |
30bea14b RS |
858 | if (!TEST_ptr(a = BN_new()) |
859 | || !TEST_ptr(b[0] = BN_new()) | |
860 | || !TEST_ptr(b[1] = BN_new()) | |
861 | || !TEST_ptr(c = BN_new()) | |
862 | || !TEST_ptr(d = BN_new()) | |
863 | || !TEST_ptr(e = BN_new()) | |
864 | || !TEST_ptr(f = BN_new())) | |
865 | goto err; | |
0f113f3e | 866 | |
87d9429c SL |
867 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
868 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
869 | goto err; | |
0f113f3e | 870 | |
8d1ebff4 | 871 | for (i = 0; i < NUM0; i++) { |
87d9429c SL |
872 | if (!(TEST_true(BN_bntest_rand(a, 512, 0, 0)) |
873 | && TEST_true(BN_bntest_rand(c, 512, 0, 0)) | |
874 | && TEST_true(BN_bntest_rand(d, 512, 0, 0)))) | |
875 | goto err; | |
0f113f3e | 876 | for (j = 0; j < 2; j++) { |
87d9429c SL |
877 | if (!(TEST_true(BN_GF2m_mod_exp(e, a, c, b[j], ctx)) |
878 | && TEST_true(BN_GF2m_mod_exp(f, a, d, b[j], ctx)) | |
879 | && TEST_true(BN_GF2m_mod_mul(e, e, f, b[j], ctx)) | |
880 | && TEST_true(BN_add(f, c, d)) | |
881 | && TEST_true(BN_GF2m_mod_exp(f, a, f, b[j], ctx)) | |
882 | && TEST_true(BN_GF2m_add(f, e, f)) | |
883 | /* Test that a^(c+d)=a^c*a^d. */ | |
884 | && TEST_BN_eq_zero(f))) | |
0f113f3e | 885 | goto err; |
0f113f3e MC |
886 | } |
887 | } | |
8d1ebff4 | 888 | st = 1; |
0f113f3e MC |
889 | err: |
890 | BN_free(a); | |
891 | BN_free(b[0]); | |
892 | BN_free(b[1]); | |
893 | BN_free(c); | |
894 | BN_free(d); | |
895 | BN_free(e); | |
896 | BN_free(f); | |
8d1ebff4 | 897 | return st; |
0f113f3e MC |
898 | } |
899 | ||
31a80694 | 900 | static int test_gf2m_modsqrt(void) |
0f113f3e | 901 | { |
30bea14b RS |
902 | BIGNUM *a = NULL, *b[2] = {NULL,NULL}, *c = NULL, *d = NULL; |
903 | BIGNUM *e = NULL, *f = NULL; | |
8d1ebff4 | 904 | int i, j, st = 0; |
0f113f3e | 905 | |
30bea14b RS |
906 | if (!TEST_ptr(a = BN_new()) |
907 | || !TEST_ptr(b[0] = BN_new()) | |
908 | || !TEST_ptr(b[1] = BN_new()) | |
909 | || !TEST_ptr(c = BN_new()) | |
910 | || !TEST_ptr(d = BN_new()) | |
911 | || !TEST_ptr(e = BN_new()) | |
912 | || !TEST_ptr(f = BN_new())) | |
913 | goto err; | |
0f113f3e | 914 | |
87d9429c SL |
915 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
916 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
917 | goto err; | |
0f113f3e | 918 | |
8d1ebff4 | 919 | for (i = 0; i < NUM0; i++) { |
87d9429c SL |
920 | if (!TEST_true(BN_bntest_rand(a, 512, 0, 0))) |
921 | goto err; | |
922 | ||
0f113f3e | 923 | for (j = 0; j < 2; j++) { |
87d9429c SL |
924 | if (!(TEST_true(BN_GF2m_mod(c, a, b[j])) |
925 | && TEST_true(BN_GF2m_mod_sqrt(d, a, b[j], ctx)) | |
926 | && TEST_true(BN_GF2m_mod_sqr(e, d, b[j], ctx)) | |
927 | && TEST_true(BN_GF2m_add(f, c, e)) | |
928 | /* Test that d^2 = a, where d = sqrt(a). */ | |
929 | && TEST_BN_eq_zero(f))) | |
0f113f3e | 930 | goto err; |
0f113f3e MC |
931 | } |
932 | } | |
8d1ebff4 | 933 | st = 1; |
0f113f3e MC |
934 | err: |
935 | BN_free(a); | |
936 | BN_free(b[0]); | |
937 | BN_free(b[1]); | |
938 | BN_free(c); | |
939 | BN_free(d); | |
940 | BN_free(e); | |
941 | BN_free(f); | |
8d1ebff4 | 942 | return st; |
0f113f3e MC |
943 | } |
944 | ||
31a80694 | 945 | static int test_gf2m_modsolvequad(void) |
0f113f3e | 946 | { |
30bea14b RS |
947 | BIGNUM *a = NULL, *b[2] = {NULL,NULL}, *c = NULL, *d = NULL; |
948 | BIGNUM *e = NULL; | |
8d1ebff4 | 949 | int i, j, s = 0, t, st = 0; |
0f113f3e | 950 | |
30bea14b RS |
951 | if (!TEST_ptr(a = BN_new()) |
952 | || !TEST_ptr(b[0] = BN_new()) | |
953 | || !TEST_ptr(b[1] = BN_new()) | |
954 | || !TEST_ptr(c = BN_new()) | |
955 | || !TEST_ptr(d = BN_new()) | |
956 | || !TEST_ptr(e = BN_new())) | |
957 | goto err; | |
0f113f3e | 958 | |
87d9429c SL |
959 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
960 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
961 | goto err; | |
0f113f3e | 962 | |
8d1ebff4 | 963 | for (i = 0; i < NUM0; i++) { |
87d9429c SL |
964 | if (!TEST_true(BN_bntest_rand(a, 512, 0, 0))) |
965 | goto err; | |
0f113f3e MC |
966 | for (j = 0; j < 2; j++) { |
967 | t = BN_GF2m_mod_solve_quad(c, a, b[j], ctx); | |
968 | if (t) { | |
969 | s++; | |
87d9429c SL |
970 | if (!(TEST_true(BN_GF2m_mod_sqr(d, c, b[j], ctx)) |
971 | && TEST_true(BN_GF2m_add(d, c, d)) | |
972 | && TEST_true(BN_GF2m_mod(e, a, b[j])) | |
973 | && TEST_true(BN_GF2m_add(e, e, d)) | |
974 | /* | |
975 | * Test that solution of quadratic c | |
976 | * satisfies c^2 + c = a. | |
977 | */ | |
978 | && TEST_BN_eq_zero(e))) | |
0f113f3e | 979 | goto err; |
0f113f3e MC |
980 | } |
981 | } | |
982 | } | |
30bea14b RS |
983 | if (!TEST_int_ge(s, 0)) { |
984 | TEST_info("%d tests found no roots; probably an error", NUM0); | |
0f113f3e MC |
985 | goto err; |
986 | } | |
8d1ebff4 | 987 | st = 1; |
0f113f3e MC |
988 | err: |
989 | BN_free(a); | |
990 | BN_free(b[0]); | |
991 | BN_free(b[1]); | |
992 | BN_free(c); | |
993 | BN_free(d); | |
994 | BN_free(e); | |
8d1ebff4 | 995 | return st; |
0f113f3e | 996 | } |
b3310161 | 997 | #endif |
8d1ebff4 | 998 | |
31a80694 | 999 | static int test_kronecker(void) |
0f113f3e | 1000 | { |
30bea14b RS |
1001 | BIGNUM *a = NULL, *b = NULL, *r = NULL, *t = NULL; |
1002 | int i, legendre, kronecker, st = 0; | |
8d1ebff4 | 1003 | |
30bea14b RS |
1004 | if (!TEST_ptr(a = BN_new()) |
1005 | || !TEST_ptr(b = BN_new()) | |
1006 | || !TEST_ptr(r = BN_new()) | |
1007 | || !TEST_ptr(t = BN_new())) | |
8d1ebff4 RS |
1008 | goto err; |
1009 | ||
1010 | /* | |
1011 | * We test BN_kronecker(a, b, ctx) just for b odd (Jacobi symbol). In | |
1012 | * this case we know that if b is prime, then BN_kronecker(a, b, ctx) is | |
1013 | * congruent to $a^{(b-1)/2}$, modulo $b$ (Legendre symbol). So we | |
1014 | * generate a random prime b and compare these values for a number of | |
1015 | * random a's. (That is, we run the Solovay-Strassen primality test to | |
1016 | * confirm that b is prime, except that we don't want to test whether b | |
1017 | * is prime but whether BN_kronecker works.) | |
1018 | */ | |
1019 | ||
30bea14b | 1020 | if (!TEST_true(BN_generate_prime_ex(b, 512, 0, NULL, NULL, NULL))) |
8d1ebff4 | 1021 | goto err; |
2b1aa198 | 1022 | BN_set_negative(b, rand_neg()); |
8d1ebff4 RS |
1023 | |
1024 | for (i = 0; i < NUM0; i++) { | |
30bea14b | 1025 | if (!TEST_true(BN_bntest_rand(a, 512, 0, 0))) |
8d1ebff4 | 1026 | goto err; |
2b1aa198 | 1027 | BN_set_negative(a, rand_neg()); |
8d1ebff4 RS |
1028 | |
1029 | /* t := (|b|-1)/2 (note that b is odd) */ | |
30bea14b | 1030 | if (!TEST_true(BN_copy(t, b))) |
8d1ebff4 | 1031 | goto err; |
2b1aa198 | 1032 | BN_set_negative(t, 0); |
30bea14b | 1033 | if (!TEST_true(BN_sub_word(t, 1))) |
8d1ebff4 | 1034 | goto err; |
30bea14b | 1035 | if (!TEST_true(BN_rshift1(t, t))) |
8d1ebff4 RS |
1036 | goto err; |
1037 | /* r := a^t mod b */ | |
2b1aa198 | 1038 | BN_set_negative(b, 0); |
8d1ebff4 | 1039 | |
30bea14b | 1040 | if (!TEST_true(BN_mod_exp_recp(r, a, t, b, ctx))) |
8d1ebff4 | 1041 | goto err; |
2b1aa198 | 1042 | BN_set_negative(b, 1); |
8d1ebff4 RS |
1043 | |
1044 | if (BN_is_word(r, 1)) | |
1045 | legendre = 1; | |
1046 | else if (BN_is_zero(r)) | |
1047 | legendre = 0; | |
1048 | else { | |
30bea14b | 1049 | if (!TEST_true(BN_add_word(r, 1))) |
8d1ebff4 | 1050 | goto err; |
30bea14b RS |
1051 | if (!TEST_int_eq(BN_ucmp(r, b), 0)) { |
1052 | TEST_info("Legendre symbol computation failed"); | |
8d1ebff4 RS |
1053 | goto err; |
1054 | } | |
1055 | legendre = -1; | |
1056 | } | |
1057 | ||
30bea14b | 1058 | if (!TEST_int_ge(kronecker = BN_kronecker(a, b, ctx), -1)) |
8d1ebff4 RS |
1059 | goto err; |
1060 | /* we actually need BN_kronecker(a, |b|) */ | |
2b1aa198 | 1061 | if (BN_is_negative(a) && BN_is_negative(b)) |
8d1ebff4 RS |
1062 | kronecker = -kronecker; |
1063 | ||
30bea14b | 1064 | if (!TEST_int_eq(legendre, kronecker)) |
8d1ebff4 | 1065 | goto err; |
8d1ebff4 RS |
1066 | } |
1067 | ||
1068 | st = 1; | |
1069 | err: | |
1070 | BN_free(a); | |
1071 | BN_free(b); | |
1072 | BN_free(r); | |
1073 | BN_free(t); | |
1074 | return st; | |
1075 | } | |
1076 | ||
1077 | static int file_sum(STANZA *s) | |
1078 | { | |
30bea14b | 1079 | BIGNUM *a = NULL, *b = NULL, *sum = NULL, *ret = NULL; |
8d1ebff4 RS |
1080 | BN_ULONG b_word; |
1081 | int st = 0; | |
1082 | ||
30bea14b RS |
1083 | if (!TEST_ptr(a = getBN(s, "A")) |
1084 | || !TEST_ptr(b = getBN(s, "B")) | |
1085 | || !TEST_ptr(sum = getBN(s, "Sum")) | |
1086 | || !TEST_ptr(ret = BN_new())) | |
8d1ebff4 RS |
1087 | goto err; |
1088 | ||
30bea14b | 1089 | if (!TEST_true(BN_add(ret, a, b)) |
8d1ebff4 | 1090 | || !equalBN("A + B", sum, ret) |
30bea14b | 1091 | || !TEST_true(BN_sub(ret, sum, a)) |
8d1ebff4 | 1092 | || !equalBN("Sum - A", b, ret) |
30bea14b | 1093 | || !TEST_true(BN_sub(ret, sum, b)) |
8d1ebff4 RS |
1094 | || !equalBN("Sum - B", a, ret)) |
1095 | goto err; | |
1096 | ||
1097 | /* | |
1098 | * Test that the functions work when |r| and |a| point to the same BIGNUM, | |
1099 | * or when |r| and |b| point to the same BIGNUM. | |
1100 | * TODO: Test where all of |r|, |a|, and |b| point to the same BIGNUM. | |
1101 | */ | |
30bea14b RS |
1102 | if (!TEST_true(BN_copy(ret, a)) |
1103 | || !TEST_true(BN_add(ret, ret, b)) | |
8d1ebff4 | 1104 | || !equalBN("A + B (r is a)", sum, ret) |
30bea14b RS |
1105 | || !TEST_true(BN_copy(ret, b)) |
1106 | || !TEST_true(BN_add(ret, a, ret)) | |
8d1ebff4 | 1107 | || !equalBN("A + B (r is b)", sum, ret) |
30bea14b RS |
1108 | || !TEST_true(BN_copy(ret, sum)) |
1109 | || !TEST_true(BN_sub(ret, ret, a)) | |
8d1ebff4 | 1110 | || !equalBN("Sum - A (r is a)", b, ret) |
30bea14b RS |
1111 | || !TEST_true(BN_copy(ret, a)) |
1112 | || !TEST_true(BN_sub(ret, sum, ret)) | |
8d1ebff4 | 1113 | || !equalBN("Sum - A (r is b)", b, ret) |
30bea14b RS |
1114 | || !TEST_true(BN_copy(ret, sum)) |
1115 | || !TEST_true(BN_sub(ret, ret, b)) | |
8d1ebff4 | 1116 | || !equalBN("Sum - B (r is a)", a, ret) |
30bea14b RS |
1117 | || !TEST_true(BN_copy(ret, b)) |
1118 | || !TEST_true(BN_sub(ret, sum, ret)) | |
8d1ebff4 RS |
1119 | || !equalBN("Sum - B (r is b)", a, ret)) |
1120 | goto err; | |
1121 | ||
1122 | /* | |
1123 | * Test BN_uadd() and BN_usub() with the prerequisites they are | |
1124 | * documented as having. Note that these functions are frequently used | |
1125 | * when the prerequisites don't hold. In those cases, they are supposed | |
1126 | * to work as if the prerequisite hold, but we don't test that yet. | |
1127 | * TODO: test that. | |
1128 | */ | |
1129 | if (!BN_is_negative(a) && !BN_is_negative(b) && BN_cmp(a, b) >= 0) { | |
30bea14b | 1130 | if (!TEST_true(BN_uadd(ret, a, b)) |
8d1ebff4 | 1131 | || !equalBN("A +u B", sum, ret) |
30bea14b | 1132 | || !TEST_true(BN_usub(ret, sum, a)) |
8d1ebff4 | 1133 | || !equalBN("Sum -u A", b, ret) |
30bea14b | 1134 | || !TEST_true(BN_usub(ret, sum, b)) |
8d1ebff4 RS |
1135 | || !equalBN("Sum -u B", a, ret)) |
1136 | goto err; | |
1137 | /* | |
1138 | * Test that the functions work when |r| and |a| point to the same | |
1139 | * BIGNUM, or when |r| and |b| point to the same BIGNUM. | |
1140 | * TODO: Test where all of |r|, |a|, and |b| point to the same BIGNUM. | |
1141 | */ | |
30bea14b RS |
1142 | if (!TEST_true(BN_copy(ret, a)) |
1143 | || !TEST_true(BN_uadd(ret, ret, b)) | |
8d1ebff4 | 1144 | || !equalBN("A +u B (r is a)", sum, ret) |
30bea14b RS |
1145 | || !TEST_true(BN_copy(ret, b)) |
1146 | || !TEST_true(BN_uadd(ret, a, ret)) | |
8d1ebff4 | 1147 | || !equalBN("A +u B (r is b)", sum, ret) |
30bea14b RS |
1148 | || !TEST_true(BN_copy(ret, sum)) |
1149 | || !TEST_true(BN_usub(ret, ret, a)) | |
8d1ebff4 | 1150 | || !equalBN("Sum -u A (r is a)", b, ret) |
30bea14b RS |
1151 | || !TEST_true(BN_copy(ret, a)) |
1152 | || !TEST_true(BN_usub(ret, sum, ret)) | |
8d1ebff4 | 1153 | || !equalBN("Sum -u A (r is b)", b, ret) |
30bea14b RS |
1154 | || !TEST_true(BN_copy(ret, sum)) |
1155 | || !TEST_true(BN_usub(ret, ret, b)) | |
8d1ebff4 | 1156 | || !equalBN("Sum -u B (r is a)", a, ret) |
30bea14b RS |
1157 | || !TEST_true(BN_copy(ret, b)) |
1158 | || !TEST_true(BN_usub(ret, sum, ret)) | |
8d1ebff4 RS |
1159 | || !equalBN("Sum -u B (r is b)", a, ret)) |
1160 | goto err; | |
1161 | } | |
1162 | ||
1163 | /* | |
1164 | * Test with BN_add_word() and BN_sub_word() if |b| is small enough. | |
1165 | */ | |
1166 | b_word = BN_get_word(b); | |
1167 | if (!BN_is_negative(b) && b_word != (BN_ULONG)-1) { | |
30bea14b RS |
1168 | if (!TEST_true(BN_copy(ret, a)) |
1169 | || !TEST_true(BN_add_word(ret, b_word)) | |
8d1ebff4 | 1170 | || !equalBN("A + B (word)", sum, ret) |
30bea14b RS |
1171 | || !TEST_true(BN_copy(ret, sum)) |
1172 | || !TEST_true(BN_sub_word(ret, b_word)) | |
8d1ebff4 RS |
1173 | || !equalBN("Sum - B (word)", a, ret)) |
1174 | goto err; | |
1175 | } | |
1176 | st = 1; | |
1177 | ||
3c97136e | 1178 | err: |
8d1ebff4 RS |
1179 | BN_free(a); |
1180 | BN_free(b); | |
1181 | BN_free(sum); | |
1182 | BN_free(ret); | |
1183 | return st; | |
1184 | } | |
1185 | ||
1186 | static int file_lshift1(STANZA *s) | |
1187 | { | |
30bea14b RS |
1188 | BIGNUM *a = NULL, *lshift1 = NULL, *zero = NULL, *ret = NULL; |
1189 | BIGNUM *two = NULL, *remainder = NULL; | |
8d1ebff4 RS |
1190 | int st = 0; |
1191 | ||
30bea14b RS |
1192 | if (!TEST_ptr(a = getBN(s, "A")) |
1193 | || !TEST_ptr(lshift1 = getBN(s, "LShift1")) | |
1194 | || !TEST_ptr(zero = BN_new()) | |
1195 | || !TEST_ptr(ret = BN_new()) | |
1196 | || !TEST_ptr(two = BN_new()) | |
1197 | || !TEST_ptr(remainder = BN_new())) | |
8d1ebff4 RS |
1198 | goto err; |
1199 | ||
1200 | BN_zero(zero); | |
1201 | ||
30bea14b RS |
1202 | if (!TEST_true(BN_set_word(two, 2)) |
1203 | || !TEST_true(BN_add(ret, a, a)) | |
8d1ebff4 | 1204 | || !equalBN("A + A", lshift1, ret) |
30bea14b | 1205 | || !TEST_true(BN_mul(ret, a, two, ctx)) |
8d1ebff4 | 1206 | || !equalBN("A * 2", lshift1, ret) |
30bea14b | 1207 | || !TEST_true(BN_div(ret, remainder, lshift1, two, ctx)) |
8d1ebff4 RS |
1208 | || !equalBN("LShift1 / 2", a, ret) |
1209 | || !equalBN("LShift1 % 2", zero, remainder) | |
30bea14b | 1210 | || !TEST_true(BN_lshift1(ret, a)) |
8d1ebff4 | 1211 | || !equalBN("A << 1", lshift1, ret) |
30bea14b | 1212 | || !TEST_true(BN_rshift1(ret, lshift1)) |
8d1ebff4 | 1213 | || !equalBN("LShift >> 1", a, ret) |
30bea14b | 1214 | || !TEST_true(BN_rshift1(ret, lshift1)) |
8d1ebff4 RS |
1215 | || !equalBN("LShift >> 1", a, ret)) |
1216 | goto err; | |
1217 | ||
1218 | /* Set the LSB to 1 and test rshift1 again. */ | |
30bea14b RS |
1219 | if (!TEST_true(BN_set_bit(lshift1, 0)) |
1220 | || !TEST_true(BN_div(ret, NULL /* rem */ , lshift1, two, ctx)) | |
8d1ebff4 | 1221 | || !equalBN("(LShift1 | 1) / 2", a, ret) |
30bea14b | 1222 | || !TEST_true(BN_rshift1(ret, lshift1)) |
8d1ebff4 RS |
1223 | || !equalBN("(LShift | 1) >> 1", a, ret)) |
1224 | goto err; | |
1225 | ||
1226 | st = 1; | |
3c97136e | 1227 | err: |
8d1ebff4 RS |
1228 | BN_free(a); |
1229 | BN_free(lshift1); | |
1230 | BN_free(zero); | |
1231 | BN_free(ret); | |
1232 | BN_free(two); | |
1233 | BN_free(remainder); | |
1234 | ||
1235 | return st; | |
1236 | } | |
1237 | ||
1238 | static int file_lshift(STANZA *s) | |
1239 | { | |
30bea14b RS |
1240 | BIGNUM *a = NULL, *lshift = NULL, *ret = NULL; |
1241 | int n = 0, st = 0; | |
8d1ebff4 | 1242 | |
30bea14b RS |
1243 | if (!TEST_ptr(a = getBN(s, "A")) |
1244 | || !TEST_ptr(lshift = getBN(s, "LShift")) | |
83ccead4 MC |
1245 | || !TEST_ptr(ret = BN_new()) |
1246 | || !getint(s, &n, "N")) | |
1247 | goto err; | |
8d1ebff4 | 1248 | |
30bea14b | 1249 | if (!TEST_true(BN_lshift(ret, a, n)) |
8d1ebff4 | 1250 | || !equalBN("A << N", lshift, ret) |
30bea14b | 1251 | || !TEST_true(BN_rshift(ret, lshift, n)) |
8d1ebff4 RS |
1252 | || !equalBN("A >> N", a, ret)) |
1253 | goto err; | |
1254 | ||
1255 | st = 1; | |
3c97136e | 1256 | err: |
8d1ebff4 RS |
1257 | BN_free(a); |
1258 | BN_free(lshift); | |
1259 | BN_free(ret); | |
1260 | return st; | |
1261 | } | |
1262 | ||
1263 | static int file_rshift(STANZA *s) | |
1264 | { | |
30bea14b RS |
1265 | BIGNUM *a = NULL, *rshift = NULL, *ret = NULL; |
1266 | int n = 0, st = 0; | |
8d1ebff4 | 1267 | |
30bea14b RS |
1268 | if (!TEST_ptr(a = getBN(s, "A")) |
1269 | || !TEST_ptr(rshift = getBN(s, "RShift")) | |
1270 | || !TEST_ptr(ret = BN_new()) | |
1271 | || !getint(s, &n, "N")) | |
8d1ebff4 RS |
1272 | goto err; |
1273 | ||
30bea14b | 1274 | if (!TEST_true(BN_rshift(ret, a, n)) |
8d1ebff4 | 1275 | || !equalBN("A >> N", rshift, ret)) |
30bea14b | 1276 | goto err; |
ceac1975 RL |
1277 | |
1278 | /* If N == 1, try with rshift1 as well */ | |
1279 | if (n == 1) { | |
30bea14b | 1280 | if (!TEST_true(BN_rshift1(ret, a)) |
ceac1975 | 1281 | || !equalBN("A >> 1 (rshift1)", rshift, ret)) |
30bea14b | 1282 | goto err; |
ceac1975 | 1283 | } |
30bea14b | 1284 | st = 1; |
8d1ebff4 | 1285 | |
3c97136e | 1286 | err: |
8d1ebff4 RS |
1287 | BN_free(a); |
1288 | BN_free(rshift); | |
1289 | BN_free(ret); | |
30bea14b | 1290 | return st; |
8d1ebff4 RS |
1291 | } |
1292 | ||
1293 | static int file_square(STANZA *s) | |
1294 | { | |
30bea14b RS |
1295 | BIGNUM *a = NULL, *square = NULL, *zero = NULL, *ret = NULL; |
1296 | BIGNUM *remainder = NULL, *tmp = NULL; | |
8d1ebff4 RS |
1297 | int st = 0; |
1298 | ||
30bea14b RS |
1299 | if (!TEST_ptr(a = getBN(s, "A")) |
1300 | || !TEST_ptr(square = getBN(s, "Square")) | |
1301 | || !TEST_ptr(zero = BN_new()) | |
1302 | || !TEST_ptr(ret = BN_new()) | |
1303 | || !TEST_ptr(remainder = BN_new())) | |
8d1ebff4 RS |
1304 | goto err; |
1305 | ||
1306 | BN_zero(zero); | |
30bea14b | 1307 | if (!TEST_true(BN_sqr(ret, a, ctx)) |
8d1ebff4 | 1308 | || !equalBN("A^2", square, ret) |
30bea14b | 1309 | || !TEST_true(BN_mul(ret, a, a, ctx)) |
8d1ebff4 | 1310 | || !equalBN("A * A", square, ret) |
30bea14b | 1311 | || !TEST_true(BN_div(ret, remainder, square, a, ctx)) |
8d1ebff4 RS |
1312 | || !equalBN("Square / A", a, ret) |
1313 | || !equalBN("Square % A", zero, remainder)) | |
1314 | goto err; | |
1315 | ||
1316 | #if HAVE_BN_SQRT | |
1317 | BN_set_negative(a, 0); | |
30bea14b | 1318 | if (!TEST_true(BN_sqrt(ret, square, ctx)) |
8d1ebff4 RS |
1319 | || !equalBN("sqrt(Square)", a, ret)) |
1320 | goto err; | |
1321 | ||
1322 | /* BN_sqrt should fail on non-squares and negative numbers. */ | |
dc352c19 P |
1323 | if (!TEST_BN_eq_zero(square)) { |
1324 | if (!TEST_ptr(tmp = BN_new()) | |
1325 | || !TEST_true(BN_copy(tmp, square))) | |
8d1ebff4 RS |
1326 | goto err; |
1327 | BN_set_negative(tmp, 1); | |
1328 | ||
30bea14b | 1329 | if (!TEST_int_eq(BN_sqrt(ret, tmp, ctx), 0)) |
8d1ebff4 | 1330 | goto err; |
8d1ebff4 RS |
1331 | ERR_clear_error(); |
1332 | ||
1333 | BN_set_negative(tmp, 0); | |
1334 | if (BN_add(tmp, tmp, BN_value_one())) | |
1335 | goto err; | |
30bea14b | 1336 | if (!TEST_int_eq(BN_sqrt(ret, tmp, ctx))) |
8d1ebff4 | 1337 | goto err; |
8d1ebff4 RS |
1338 | ERR_clear_error(); |
1339 | } | |
1340 | #endif | |
1341 | ||
1342 | st = 1; | |
3c97136e | 1343 | err: |
8d1ebff4 RS |
1344 | BN_free(a); |
1345 | BN_free(square); | |
1346 | BN_free(zero); | |
1347 | BN_free(ret); | |
1348 | BN_free(remainder); | |
1349 | BN_free(tmp); | |
1350 | return st; | |
1351 | } | |
1352 | ||
1353 | static int file_product(STANZA *s) | |
1354 | { | |
30bea14b RS |
1355 | BIGNUM *a = NULL, *b = NULL, *product = NULL, *ret = NULL; |
1356 | BIGNUM *remainder = NULL, *zero = NULL; | |
8d1ebff4 RS |
1357 | int st = 0; |
1358 | ||
30bea14b RS |
1359 | if (!TEST_ptr(a = getBN(s, "A")) |
1360 | || !TEST_ptr(b = getBN(s, "B")) | |
1361 | || !TEST_ptr(product = getBN(s, "Product")) | |
1362 | || !TEST_ptr(ret = BN_new()) | |
1363 | || !TEST_ptr(remainder = BN_new()) | |
1364 | || !TEST_ptr(zero = BN_new())) | |
8d1ebff4 RS |
1365 | goto err; |
1366 | ||
1367 | BN_zero(zero); | |
1368 | ||
30bea14b | 1369 | if (!TEST_true(BN_mul(ret, a, b, ctx)) |
8d1ebff4 | 1370 | || !equalBN("A * B", product, ret) |
30bea14b | 1371 | || !TEST_true(BN_div(ret, remainder, product, a, ctx)) |
8d1ebff4 RS |
1372 | || !equalBN("Product / A", b, ret) |
1373 | || !equalBN("Product % A", zero, remainder) | |
30bea14b | 1374 | || !TEST_true(BN_div(ret, remainder, product, b, ctx)) |
8d1ebff4 RS |
1375 | || !equalBN("Product / B", a, ret) |
1376 | || !equalBN("Product % B", zero, remainder)) | |
1377 | goto err; | |
1378 | ||
1379 | st = 1; | |
3c97136e | 1380 | err: |
8d1ebff4 RS |
1381 | BN_free(a); |
1382 | BN_free(b); | |
1383 | BN_free(product); | |
1384 | BN_free(ret); | |
1385 | BN_free(remainder); | |
1386 | BN_free(zero); | |
1387 | return st; | |
1388 | } | |
1389 | ||
1390 | static int file_quotient(STANZA *s) | |
1391 | { | |
30bea14b RS |
1392 | BIGNUM *a = NULL, *b = NULL, *quotient = NULL, *remainder = NULL; |
1393 | BIGNUM *ret = NULL, *ret2 = NULL, *nnmod = NULL; | |
8d1ebff4 RS |
1394 | BN_ULONG b_word, ret_word; |
1395 | int st = 0; | |
1396 | ||
30bea14b RS |
1397 | if (!TEST_ptr(a = getBN(s, "A")) |
1398 | || !TEST_ptr(b = getBN(s, "B")) | |
1399 | || !TEST_ptr(quotient = getBN(s, "Quotient")) | |
1400 | || !TEST_ptr(remainder = getBN(s, "Remainder")) | |
1401 | || !TEST_ptr(ret = BN_new()) | |
1402 | || !TEST_ptr(ret2 = BN_new()) | |
1403 | || !TEST_ptr(nnmod = BN_new())) | |
8d1ebff4 RS |
1404 | goto err; |
1405 | ||
30bea14b | 1406 | if (!TEST_true(BN_div(ret, ret2, a, b, ctx)) |
8d1ebff4 RS |
1407 | || !equalBN("A / B", quotient, ret) |
1408 | || !equalBN("A % B", remainder, ret2) | |
30bea14b RS |
1409 | || !TEST_true(BN_mul(ret, quotient, b, ctx)) |
1410 | || !TEST_true(BN_add(ret, ret, remainder)) | |
8d1ebff4 RS |
1411 | || !equalBN("Quotient * B + Remainder", a, ret)) |
1412 | goto err; | |
1413 | ||
1414 | /* | |
1415 | * Test with BN_mod_word() and BN_div_word() if the divisor is | |
1416 | * small enough. | |
1417 | */ | |
1418 | b_word = BN_get_word(b); | |
1419 | if (!BN_is_negative(b) && b_word != (BN_ULONG)-1) { | |
1420 | BN_ULONG remainder_word = BN_get_word(remainder); | |
1421 | ||
1422 | assert(remainder_word != (BN_ULONG)-1); | |
30bea14b | 1423 | if (!TEST_ptr(BN_copy(ret, a))) |
8d1ebff4 RS |
1424 | goto err; |
1425 | ret_word = BN_div_word(ret, b_word); | |
1426 | if (ret_word != remainder_word) { | |
1427 | #ifdef BN_DEC_FMT1 | |
30bea14b RS |
1428 | TEST_error( |
1429 | "Got A %% B (word) = " BN_DEC_FMT1 ", wanted " BN_DEC_FMT1, | |
8d1ebff4 RS |
1430 | ret_word, remainder_word); |
1431 | #else | |
30bea14b | 1432 | TEST_error("Got A %% B (word) mismatch"); |
8d1ebff4 RS |
1433 | #endif |
1434 | goto err; | |
1435 | } | |
1436 | if (!equalBN ("A / B (word)", quotient, ret)) | |
1437 | goto err; | |
1438 | ||
1439 | ret_word = BN_mod_word(a, b_word); | |
1440 | if (ret_word != remainder_word) { | |
1441 | #ifdef BN_DEC_FMT1 | |
30bea14b RS |
1442 | TEST_error( |
1443 | "Got A %% B (word) = " BN_DEC_FMT1 ", wanted " BN_DEC_FMT1 "", | |
8d1ebff4 RS |
1444 | ret_word, remainder_word); |
1445 | #else | |
30bea14b | 1446 | TEST_error("Got A %% B (word) mismatch"); |
8d1ebff4 RS |
1447 | #endif |
1448 | goto err; | |
1449 | } | |
1450 | } | |
1451 | ||
1452 | /* Test BN_nnmod. */ | |
1453 | if (!BN_is_negative(b)) { | |
30bea14b RS |
1454 | if (!TEST_true(BN_copy(nnmod, remainder)) |
1455 | || (BN_is_negative(nnmod) | |
1456 | && !TEST_true(BN_add(nnmod, nnmod, b))) | |
1457 | || !TEST_true(BN_nnmod(ret, a, b, ctx)) | |
8d1ebff4 RS |
1458 | || !equalBN("A % B (non-negative)", nnmod, ret)) |
1459 | goto err; | |
1460 | } | |
1461 | ||
1462 | st = 1; | |
3c97136e | 1463 | err: |
8d1ebff4 RS |
1464 | BN_free(a); |
1465 | BN_free(b); | |
1466 | BN_free(quotient); | |
1467 | BN_free(remainder); | |
1468 | BN_free(ret); | |
1469 | BN_free(ret2); | |
1470 | BN_free(nnmod); | |
1471 | return st; | |
1472 | } | |
1473 | ||
1474 | static int file_modmul(STANZA *s) | |
1475 | { | |
30bea14b | 1476 | BIGNUM *a = NULL, *b = NULL, *m = NULL, *mod_mul = NULL, *ret = NULL; |
8d1ebff4 RS |
1477 | int st = 0; |
1478 | ||
30bea14b RS |
1479 | if (!TEST_ptr(a = getBN(s, "A")) |
1480 | || !TEST_ptr(b = getBN(s, "B")) | |
1481 | || !TEST_ptr(m = getBN(s, "M")) | |
1482 | || !TEST_ptr(mod_mul = getBN(s, "ModMul")) | |
1483 | || !TEST_ptr(ret = BN_new())) | |
8d1ebff4 RS |
1484 | goto err; |
1485 | ||
30bea14b | 1486 | if (!TEST_true(BN_mod_mul(ret, a, b, m, ctx)) |
8d1ebff4 RS |
1487 | || !equalBN("A * B (mod M)", mod_mul, ret)) |
1488 | goto err; | |
1489 | ||
1490 | if (BN_is_odd(m)) { | |
1491 | /* Reduce |a| and |b| and test the Montgomery version. */ | |
1492 | BN_MONT_CTX *mont = BN_MONT_CTX_new(); | |
1493 | BIGNUM *a_tmp = BN_new(); | |
1494 | BIGNUM *b_tmp = BN_new(); | |
30bea14b | 1495 | |
8d1ebff4 | 1496 | if (mont == NULL || a_tmp == NULL || b_tmp == NULL |
30bea14b RS |
1497 | || !TEST_true(BN_MONT_CTX_set(mont, m, ctx)) |
1498 | || !TEST_true(BN_nnmod(a_tmp, a, m, ctx)) | |
1499 | || !TEST_true(BN_nnmod(b_tmp, b, m, ctx)) | |
1500 | || !TEST_true(BN_to_montgomery(a_tmp, a_tmp, mont, ctx)) | |
1501 | || !TEST_true(BN_to_montgomery(b_tmp, b_tmp, mont, ctx)) | |
1502 | || !TEST_true(BN_mod_mul_montgomery(ret, a_tmp, b_tmp, | |
1503 | mont, ctx)) | |
1504 | || !TEST_true(BN_from_montgomery(ret, ret, mont, ctx)) | |
1505 | || !equalBN("A * B (mod M) (mont)", mod_mul, ret)) | |
8d1ebff4 | 1506 | st = 0; |
30bea14b | 1507 | else |
8d1ebff4 | 1508 | st = 1; |
8d1ebff4 RS |
1509 | BN_MONT_CTX_free(mont); |
1510 | BN_free(a_tmp); | |
1511 | BN_free(b_tmp); | |
1512 | if (st == 0) | |
1513 | goto err; | |
1514 | } | |
1515 | ||
1516 | st = 1; | |
3c97136e | 1517 | err: |
8d1ebff4 RS |
1518 | BN_free(a); |
1519 | BN_free(b); | |
1520 | BN_free(m); | |
1521 | BN_free(mod_mul); | |
1522 | BN_free(ret); | |
1523 | return st; | |
1524 | } | |
1525 | ||
1526 | static int file_modexp(STANZA *s) | |
1527 | { | |
30bea14b RS |
1528 | BIGNUM *a = NULL, *e = NULL, *m = NULL, *mod_exp = NULL, *ret = NULL; |
1529 | BIGNUM *b = NULL, *c = NULL, *d = NULL; | |
8d1ebff4 RS |
1530 | int st = 0; |
1531 | ||
30bea14b RS |
1532 | if (!TEST_ptr(a = getBN(s, "A")) |
1533 | || !TEST_ptr(e = getBN(s, "E")) | |
1534 | || !TEST_ptr(m = getBN(s, "M")) | |
1535 | || !TEST_ptr(mod_exp = getBN(s, "ModExp")) | |
1536 | || !TEST_ptr(ret = BN_new()) | |
1537 | || !TEST_ptr(d = BN_new())) | |
8d1ebff4 RS |
1538 | goto err; |
1539 | ||
30bea14b | 1540 | if (!TEST_true(BN_mod_exp(ret, a, e, m, ctx)) |
8d1ebff4 RS |
1541 | || !equalBN("A ^ E (mod M)", mod_exp, ret)) |
1542 | goto err; | |
1543 | ||
1544 | if (BN_is_odd(m)) { | |
30bea14b | 1545 | if (!TEST_true(BN_mod_exp_mont(ret, a, e, m, ctx, NULL)) |
8d1ebff4 | 1546 | || !equalBN("A ^ E (mod M) (mont)", mod_exp, ret) |
30bea14b RS |
1547 | || !TEST_true(BN_mod_exp_mont_consttime(ret, a, e, m, |
1548 | ctx, NULL)) | |
8d1ebff4 RS |
1549 | || !equalBN("A ^ E (mod M) (mont const", mod_exp, ret)) |
1550 | goto err; | |
1551 | } | |
1552 | ||
1553 | /* Regression test for carry propagation bug in sqr8x_reduction */ | |
1554 | BN_hex2bn(&a, "050505050505"); | |
1555 | BN_hex2bn(&b, "02"); | |
1556 | BN_hex2bn(&c, | |
1557 | "4141414141414141414141274141414141414141414141414141414141414141" | |
1558 | "4141414141414141414141414141414141414141414141414141414141414141" | |
1559 | "4141414141414141414141800000000000000000000000000000000000000000" | |
1560 | "0000000000000000000000000000000000000000000000000000000000000000" | |
1561 | "0000000000000000000000000000000000000000000000000000000000000000" | |
1562 | "0000000000000000000000000000000000000000000000000000000001"); | |
9e206ce5 P |
1563 | if (!TEST_true(BN_mod_exp(d, a, b, c, ctx)) |
1564 | || !TEST_true(BN_mul(e, a, a, ctx)) | |
1565 | || !TEST_BN_eq(d, e)) | |
8d1ebff4 | 1566 | goto err; |
8d1ebff4 RS |
1567 | |
1568 | st = 1; | |
3c97136e | 1569 | err: |
8d1ebff4 RS |
1570 | BN_free(a); |
1571 | BN_free(b); | |
1572 | BN_free(c); | |
1573 | BN_free(d); | |
1574 | BN_free(e); | |
1575 | BN_free(m); | |
1576 | BN_free(mod_exp); | |
1577 | BN_free(ret); | |
1578 | return st; | |
1579 | } | |
1580 | ||
1581 | static int file_exp(STANZA *s) | |
1582 | { | |
30bea14b | 1583 | BIGNUM *a = NULL, *e = NULL, *exp = NULL, *ret = NULL; |
8d1ebff4 RS |
1584 | int st = 0; |
1585 | ||
30bea14b RS |
1586 | if (!TEST_ptr(a = getBN(s, "A")) |
1587 | || !TEST_ptr(e = getBN(s, "E")) | |
1588 | || !TEST_ptr(exp = getBN(s, "Exp")) | |
1589 | || !TEST_ptr(ret = BN_new())) | |
8d1ebff4 RS |
1590 | goto err; |
1591 | ||
30bea14b | 1592 | if (!TEST_true(BN_exp(ret, a, e, ctx)) |
8d1ebff4 RS |
1593 | || !equalBN("A ^ E", exp, ret)) |
1594 | goto err; | |
1595 | ||
1596 | st = 1; | |
3c97136e | 1597 | err: |
8d1ebff4 RS |
1598 | BN_free(a); |
1599 | BN_free(e); | |
1600 | BN_free(exp); | |
1601 | BN_free(ret); | |
1602 | return st; | |
1603 | } | |
1604 | ||
1605 | static int file_modsqrt(STANZA *s) | |
1606 | { | |
30bea14b | 1607 | BIGNUM *a = NULL, *p = NULL, *mod_sqrt = NULL, *ret = NULL, *ret2 = NULL; |
8d1ebff4 RS |
1608 | int st = 0; |
1609 | ||
30bea14b RS |
1610 | if (!TEST_ptr(a = getBN(s, "A")) |
1611 | || !TEST_ptr(p = getBN(s, "P")) | |
1612 | || !TEST_ptr(mod_sqrt = getBN(s, "ModSqrt")) | |
1613 | || !TEST_ptr(ret = BN_new()) | |
1614 | || !TEST_ptr(ret2 = BN_new())) | |
8d1ebff4 RS |
1615 | goto err; |
1616 | ||
1617 | /* There are two possible answers. */ | |
30bea14b RS |
1618 | if (!TEST_true(BN_mod_sqrt(ret, a, p, ctx)) |
1619 | || !TEST_true(BN_sub(ret2, p, ret))) | |
8d1ebff4 RS |
1620 | goto err; |
1621 | ||
30bea14b | 1622 | /* The first condition should NOT be a test. */ |
8d1ebff4 RS |
1623 | if (BN_cmp(ret2, mod_sqrt) != 0 |
1624 | && !equalBN("sqrt(A) (mod P)", mod_sqrt, ret)) | |
1625 | goto err; | |
1626 | ||
1627 | st = 1; | |
3c97136e | 1628 | err: |
8d1ebff4 RS |
1629 | BN_free(a); |
1630 | BN_free(p); | |
1631 | BN_free(mod_sqrt); | |
1632 | BN_free(ret); | |
1633 | BN_free(ret2); | |
1634 | return st; | |
1635 | } | |
1636 | ||
aa20a9b3 CPG |
1637 | static int file_gcd(STANZA *s) |
1638 | { | |
1639 | BIGNUM *a = NULL, *b = NULL, *gcd = NULL, *ret = NULL; | |
1640 | int st = 0; | |
1641 | ||
1642 | if (!TEST_ptr(a = getBN(s, "A")) | |
1643 | || !TEST_ptr(b = getBN(s, "B")) | |
1644 | || !TEST_ptr(gcd = getBN(s, "GCD")) | |
1645 | || !TEST_ptr(ret = BN_new())) | |
1646 | goto err; | |
1647 | ||
1648 | if (!TEST_true(BN_gcd(ret, a, b, ctx)) | |
1649 | || !equalBN("gcd(A,B)", gcd, ret)) | |
1650 | goto err; | |
1651 | ||
1652 | st = 1; | |
1653 | err: | |
1654 | BN_free(a); | |
1655 | BN_free(b); | |
1656 | BN_free(gcd); | |
1657 | BN_free(ret); | |
1658 | return st; | |
1659 | } | |
1660 | ||
31a80694 | 1661 | static int test_bn2padded(void) |
8d1ebff4 RS |
1662 | { |
1663 | #if HAVE_BN_PADDED | |
1664 | uint8_t zeros[256], out[256], reference[128]; | |
1665 | BIGNUM *n = BN_new(); | |
1666 | int st = 0; | |
1667 | ||
1668 | /* Test edge case at 0. */ | |
1669 | if (n == NULL) | |
1670 | goto err; | |
30bea14b | 1671 | if (!TEST_true(BN_bn2bin_padded(NULL, 0, n))) |
8d1ebff4 | 1672 | goto err; |
8d1ebff4 | 1673 | memset(out, -1, sizeof(out)); |
30bea14b | 1674 | if (!TEST_true(BN_bn2bin_padded(out, sizeof(out)), n)) |
8d1ebff4 | 1675 | goto err; |
8d1ebff4 | 1676 | memset(zeros, 0, sizeof(zeros)); |
30bea14b | 1677 | if (!TEST_mem_eq(zeros, sizeof(zeros), out, sizeof(out))) |
8d1ebff4 | 1678 | goto err; |
8d1ebff4 RS |
1679 | |
1680 | /* Test a random numbers at various byte lengths. */ | |
1681 | for (size_t bytes = 128 - 7; bytes <= 128; bytes++) { | |
3c97136e NT |
1682 | # define TOP_BIT_ON 0 |
1683 | # define BOTTOM_BIT_NOTOUCH 0 | |
30bea14b | 1684 | if (!TEST_true(BN_rand(n, bytes * 8, TOP_BIT_ON, BOTTOM_BIT_NOTOUCH))) |
8d1ebff4 | 1685 | goto err; |
30bea14b RS |
1686 | if (!TEST_int_eq(BN_num_bytes(n),A) bytes |
1687 | || TEST_int_eq(BN_bn2bin(n, reference), bytes)) | |
8d1ebff4 | 1688 | goto err; |
8d1ebff4 | 1689 | /* Empty buffer should fail. */ |
30bea14b | 1690 | if (!TEST_int_eq(BN_bn2bin_padded(NULL, 0, n)), 0) |
8d1ebff4 | 1691 | goto err; |
8d1ebff4 | 1692 | /* One byte short should fail. */ |
30bea14b | 1693 | if (BN_bn2bin_padded(out, bytes - 1, n)) |
8d1ebff4 | 1694 | goto err; |
8d1ebff4 | 1695 | /* Exactly right size should encode. */ |
30bea14b RS |
1696 | if (!TEST_true(BN_bn2bin_padded(out, bytes, n)) |
1697 | || TEST_mem_eq(out, bytes, reference, bytes)) | |
8d1ebff4 | 1698 | goto err; |
8d1ebff4 | 1699 | /* Pad up one byte extra. */ |
30bea14b RS |
1700 | if (!TEST_true(BN_bn2bin_padded(out, bytes + 1, n)) |
1701 | || !TEST_mem_eq(out + 1, bytes, reference, bytes) | |
1702 | || !TEST_mem_eq(out, 1, zeros, 1)) | |
8d1ebff4 | 1703 | goto err; |
8d1ebff4 | 1704 | /* Pad up to 256. */ |
30bea14b RS |
1705 | if (!TEST_true(BN_bn2bin_padded(out, sizeof(out)), n) |
1706 | || !TEST_mem_eq(out + sizeof(out) - bytes, bytes, | |
1707 | reference, bytes) | |
1708 | || !TEST_mem_eq(out, sizseof(out) - bytes, | |
1709 | zeros, sizeof(out) - bytes)) | |
8d1ebff4 | 1710 | goto err; |
8d1ebff4 RS |
1711 | } |
1712 | ||
1713 | st = 1; | |
3c97136e | 1714 | err: |
8d1ebff4 RS |
1715 | BN_free(n); |
1716 | return st; | |
1717 | #else | |
1718 | return ctx != NULL; | |
1719 | #endif | |
1720 | } | |
1721 | ||
31a80694 | 1722 | static int test_dec2bn(void) |
8d1ebff4 RS |
1723 | { |
1724 | BIGNUM *bn = NULL; | |
1725 | int st = 0; | |
1726 | ||
30bea14b | 1727 | if (!TEST_int_eq(parsedecBN(&bn, "0"), 1) |
dc352c19 P |
1728 | || !TEST_BN_eq_word(bn, 0) |
1729 | || !TEST_BN_eq_zero(bn) | |
1730 | || !TEST_BN_le_zero(bn) | |
1731 | || !TEST_BN_ge_zero(bn) | |
1732 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1733 | goto err; |
8d1ebff4 | 1734 | BN_free(bn); |
dc352c19 | 1735 | bn = NULL; |
8d1ebff4 | 1736 | |
30bea14b | 1737 | if (!TEST_int_eq(parsedecBN(&bn, "256"), 3) |
dc352c19 P |
1738 | || !TEST_BN_eq_word(bn, 256) |
1739 | || !TEST_BN_ge_zero(bn) | |
1740 | || !TEST_BN_gt_zero(bn) | |
1741 | || !TEST_BN_ne_zero(bn) | |
1742 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1743 | goto err; |
8d1ebff4 | 1744 | BN_free(bn); |
dc352c19 | 1745 | bn = NULL; |
8d1ebff4 | 1746 | |
30bea14b | 1747 | if (!TEST_int_eq(parsedecBN(&bn, "-42"), 3) |
dc352c19 P |
1748 | || !TEST_BN_abs_eq_word(bn, 42) |
1749 | || !TEST_BN_lt_zero(bn) | |
1750 | || !TEST_BN_le_zero(bn) | |
1751 | || !TEST_BN_ne_zero(bn) | |
1752 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1753 | goto err; |
8d1ebff4 | 1754 | BN_free(bn); |
dc352c19 P |
1755 | bn = NULL; |
1756 | ||
1757 | if (!TEST_int_eq(parsedecBN(&bn, "1"), 1) | |
1758 | || !TEST_BN_eq_word(bn, 1) | |
1759 | || !TEST_BN_ne_zero(bn) | |
1760 | || !TEST_BN_gt_zero(bn) | |
1761 | || !TEST_BN_ge_zero(bn) | |
1762 | || !TEST_BN_eq_one(bn) | |
1763 | || !TEST_BN_odd(bn)) | |
1764 | goto err; | |
1765 | BN_free(bn); | |
1766 | bn = NULL; | |
8d1ebff4 | 1767 | |
30bea14b | 1768 | if (!TEST_int_eq(parsedecBN(&bn, "-0"), 2) |
dc352c19 P |
1769 | || !TEST_BN_eq_zero(bn) |
1770 | || !TEST_BN_ge_zero(bn) | |
1771 | || !TEST_BN_le_zero(bn) | |
1772 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1773 | goto err; |
8d1ebff4 | 1774 | BN_free(bn); |
dc352c19 | 1775 | bn = NULL; |
8d1ebff4 | 1776 | |
30bea14b | 1777 | if (!TEST_int_eq(parsedecBN(&bn, "42trailing garbage is ignored"), 2) |
dc352c19 P |
1778 | || !TEST_BN_abs_eq_word(bn, 42) |
1779 | || !TEST_BN_ge_zero(bn) | |
1780 | || !TEST_BN_gt_zero(bn) | |
1781 | || !TEST_BN_ne_zero(bn) | |
1782 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1783 | goto err; |
8d1ebff4 RS |
1784 | |
1785 | st = 1; | |
3c97136e | 1786 | err: |
8d1ebff4 RS |
1787 | BN_free(bn); |
1788 | return st; | |
1789 | } | |
1790 | ||
31a80694 | 1791 | static int test_hex2bn(void) |
8d1ebff4 RS |
1792 | { |
1793 | BIGNUM *bn = NULL; | |
30bea14b | 1794 | int st = 0; |
8d1ebff4 | 1795 | |
30bea14b | 1796 | if (!TEST_int_eq(parseBN(&bn, "0"), 1) |
dc352c19 P |
1797 | || !TEST_BN_eq_zero(bn) |
1798 | || !TEST_BN_ge_zero(bn) | |
1799 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1800 | goto err; |
8d1ebff4 | 1801 | BN_free(bn); |
dc352c19 | 1802 | bn = NULL; |
8d1ebff4 | 1803 | |
30bea14b | 1804 | if (!TEST_int_eq(parseBN(&bn, "256"), 3) |
dc352c19 P |
1805 | || !TEST_BN_eq_word(bn, 0x256) |
1806 | || !TEST_BN_ge_zero(bn) | |
1807 | || !TEST_BN_gt_zero(bn) | |
1808 | || !TEST_BN_ne_zero(bn) | |
1809 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1810 | goto err; |
8d1ebff4 | 1811 | BN_free(bn); |
dc352c19 | 1812 | bn = NULL; |
8d1ebff4 | 1813 | |
30bea14b | 1814 | if (!TEST_int_eq(parseBN(&bn, "-42"), 3) |
dc352c19 P |
1815 | || !TEST_BN_abs_eq_word(bn, 0x42) |
1816 | || !TEST_BN_lt_zero(bn) | |
1817 | || !TEST_BN_le_zero(bn) | |
1818 | || !TEST_BN_ne_zero(bn) | |
1819 | || !TEST_BN_even(bn)) | |
1820 | goto err; | |
1821 | BN_free(bn); | |
1822 | bn = NULL; | |
1823 | ||
1824 | if (!TEST_int_eq(parseBN(&bn, "cb"), 2) | |
1825 | || !TEST_BN_eq_word(bn, 0xCB) | |
1826 | || !TEST_BN_ge_zero(bn) | |
1827 | || !TEST_BN_gt_zero(bn) | |
1828 | || !TEST_BN_ne_zero(bn) | |
1829 | || !TEST_BN_odd(bn)) | |
8d1ebff4 | 1830 | goto err; |
8d1ebff4 | 1831 | BN_free(bn); |
dc352c19 | 1832 | bn = NULL; |
8d1ebff4 | 1833 | |
30bea14b | 1834 | if (!TEST_int_eq(parseBN(&bn, "-0"), 2) |
dc352c19 P |
1835 | || !TEST_BN_eq_zero(bn) |
1836 | || !TEST_BN_ge_zero(bn) | |
1837 | || !TEST_BN_le_zero(bn) | |
1838 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1839 | goto err; |
8d1ebff4 | 1840 | BN_free(bn); |
dc352c19 | 1841 | bn = NULL; |
8d1ebff4 | 1842 | |
30bea14b | 1843 | if (!TEST_int_eq(parseBN(&bn, "abctrailing garbage is ignored"), 3) |
dc352c19 P |
1844 | || !TEST_BN_eq_word(bn, 0xabc) |
1845 | || !TEST_BN_ge_zero(bn) | |
1846 | || !TEST_BN_gt_zero(bn) | |
1847 | || !TEST_BN_ne_zero(bn) | |
1848 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 1849 | goto err; |
8d1ebff4 RS |
1850 | st = 1; |
1851 | ||
3c97136e | 1852 | err: |
8d1ebff4 RS |
1853 | BN_free(bn); |
1854 | return st; | |
1855 | } | |
1856 | ||
31a80694 | 1857 | static int test_asc2bn(void) |
8d1ebff4 | 1858 | { |
30bea14b | 1859 | BIGNUM *bn = NULL; |
8d1ebff4 RS |
1860 | int st = 0; |
1861 | ||
30bea14b | 1862 | if (!TEST_ptr(bn = BN_new())) |
8d1ebff4 | 1863 | goto err; |
8d1ebff4 | 1864 | |
30bea14b | 1865 | if (!TEST_true(BN_asc2bn(&bn, "0")) |
dc352c19 P |
1866 | || !TEST_BN_eq_zero(bn) |
1867 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 1868 | goto err; |
8d1ebff4 | 1869 | |
30bea14b | 1870 | if (!TEST_true(BN_asc2bn(&bn, "256")) |
dc352c19 P |
1871 | || !TEST_BN_eq_word(bn, 256) |
1872 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 1873 | goto err; |
8d1ebff4 | 1874 | |
30bea14b | 1875 | if (!TEST_true(BN_asc2bn(&bn, "-42")) |
dc352c19 P |
1876 | || !TEST_BN_abs_eq_word(bn, 42) |
1877 | || !TEST_BN_lt_zero(bn)) | |
8d1ebff4 | 1878 | goto err; |
8d1ebff4 | 1879 | |
30bea14b | 1880 | if (!TEST_true(BN_asc2bn(&bn, "0x1234")) |
dc352c19 P |
1881 | || !TEST_BN_eq_word(bn, 0x1234) |
1882 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 1883 | goto err; |
8d1ebff4 | 1884 | |
30bea14b | 1885 | if (!TEST_true(BN_asc2bn(&bn, "0X1234")) |
dc352c19 P |
1886 | || !TEST_BN_eq_word(bn, 0x1234) |
1887 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 1888 | goto err; |
8d1ebff4 | 1889 | |
30bea14b | 1890 | if (!TEST_true(BN_asc2bn(&bn, "-0xabcd")) |
dc352c19 P |
1891 | || !TEST_BN_abs_eq_word(bn, 0xabcd) |
1892 | || !TEST_BN_lt_zero(bn)) | |
8d1ebff4 | 1893 | goto err; |
8d1ebff4 | 1894 | |
30bea14b | 1895 | if (!TEST_true(BN_asc2bn(&bn, "-0")) |
dc352c19 P |
1896 | || !TEST_BN_eq_zero(bn) |
1897 | || !TEST_BN_ge_zero(bn)) | |
30bea14b RS |
1898 | goto err; |
1899 | ||
1900 | if (!TEST_true(BN_asc2bn(&bn, "123trailing garbage is ignored")) | |
dc352c19 P |
1901 | || !TEST_BN_eq_word(bn, 123) |
1902 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 1903 | goto err; |
8d1ebff4 RS |
1904 | |
1905 | st = 1; | |
3c97136e | 1906 | err: |
8d1ebff4 RS |
1907 | BN_free(bn); |
1908 | return st; | |
1909 | } | |
1910 | ||
1911 | static const MPITEST kMPITests[] = { | |
1912 | {"0", "\x00\x00\x00\x00", 4}, | |
1913 | {"1", "\x00\x00\x00\x01\x01", 5}, | |
1914 | {"-1", "\x00\x00\x00\x01\x81", 5}, | |
1915 | {"128", "\x00\x00\x00\x02\x00\x80", 6}, | |
1916 | {"256", "\x00\x00\x00\x02\x01\x00", 6}, | |
1917 | {"-256", "\x00\x00\x00\x02\x81\x00", 6}, | |
1918 | }; | |
1919 | ||
30bea14b | 1920 | static int test_mpi(int i) |
8d1ebff4 RS |
1921 | { |
1922 | uint8_t scratch[8]; | |
30bea14b | 1923 | const MPITEST *test = &kMPITests[i]; |
8d1ebff4 | 1924 | size_t mpi_len, mpi_len2; |
30bea14b | 1925 | BIGNUM *bn = NULL; |
8d1ebff4 RS |
1926 | BIGNUM *bn2 = NULL; |
1927 | int st = 0; | |
1928 | ||
30bea14b RS |
1929 | if (!TEST_ptr(bn = BN_new()) |
1930 | || !TEST_true(BN_asc2bn(&bn, test->base10))) | |
1931 | goto err; | |
1932 | mpi_len = BN_bn2mpi(bn, NULL); | |
1933 | if (!TEST_size_t_le(mpi_len, sizeof(scratch))) | |
1934 | goto err; | |
8d1ebff4 | 1935 | |
30bea14b RS |
1936 | if (!TEST_size_t_eq(mpi_len2 = BN_bn2mpi(bn, scratch), mpi_len) |
1937 | || !TEST_mem_eq(test->mpi, test->mpi_len, scratch, mpi_len)) | |
1938 | goto err; | |
8d1ebff4 | 1939 | |
30bea14b RS |
1940 | if (!TEST_ptr(bn2 = BN_mpi2bn(scratch, mpi_len, NULL))) |
1941 | goto err; | |
8d1ebff4 | 1942 | |
dc352c19 | 1943 | if (!TEST_BN_eq(bn, bn2)) { |
8d1ebff4 | 1944 | BN_free(bn2); |
30bea14b | 1945 | goto err; |
8d1ebff4 | 1946 | } |
30bea14b | 1947 | BN_free(bn2); |
8d1ebff4 RS |
1948 | |
1949 | st = 1; | |
3c97136e | 1950 | err: |
8d1ebff4 RS |
1951 | BN_free(bn); |
1952 | return st; | |
0f113f3e | 1953 | } |
bdec3c53 | 1954 | |
31a80694 | 1955 | static int test_rand(void) |
0f113f3e | 1956 | { |
30bea14b | 1957 | BIGNUM *bn = NULL; |
8d1ebff4 | 1958 | int st = 0; |
0f113f3e | 1959 | |
30bea14b | 1960 | if (!TEST_ptr(bn = BN_new())) |
8d1ebff4 | 1961 | return 0; |
0f113f3e | 1962 | |
30bea14b RS |
1963 | /* Test BN_rand for degenerate cases with |top| and |bottom| parameters. */ |
1964 | if (!TEST_false(BN_rand(bn, 0, 0 /* top */ , 0 /* bottom */ )) | |
1965 | || !TEST_false(BN_rand(bn, 0, 1 /* top */ , 1 /* bottom */ )) | |
1966 | || !TEST_true(BN_rand(bn, 1, 0 /* top */ , 0 /* bottom */ )) | |
dc352c19 | 1967 | || !TEST_BN_eq_one(bn) |
30bea14b RS |
1968 | || !TEST_false(BN_rand(bn, 1, 1 /* top */ , 0 /* bottom */ )) |
1969 | || !TEST_true(BN_rand(bn, 1, -1 /* top */ , 1 /* bottom */ )) | |
dc352c19 | 1970 | || !TEST_BN_eq_one(bn) |
30bea14b | 1971 | || !TEST_true(BN_rand(bn, 2, 1 /* top */ , 0 /* bottom */ )) |
dc352c19 | 1972 | || !TEST_BN_eq_word(bn, 3)) |
8d1ebff4 | 1973 | goto err; |
0f113f3e | 1974 | |
8d1ebff4 | 1975 | st = 1; |
3c97136e | 1976 | err: |
8d1ebff4 RS |
1977 | BN_free(bn); |
1978 | return st; | |
1979 | } | |
1980 | ||
31a80694 | 1981 | static int test_negzero(void) |
8d1ebff4 | 1982 | { |
30bea14b | 1983 | BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL; |
8d1ebff4 RS |
1984 | BIGNUM *numerator = NULL, *denominator = NULL; |
1985 | int consttime, st = 0; | |
1986 | ||
30bea14b RS |
1987 | if (!TEST_ptr(a = BN_new()) |
1988 | || !TEST_ptr(b = BN_new()) | |
1989 | || !TEST_ptr(c = BN_new()) | |
1990 | || !TEST_ptr(d = BN_new())) | |
8d1ebff4 RS |
1991 | goto err; |
1992 | ||
1993 | /* Test that BN_mul never gives negative zero. */ | |
30bea14b | 1994 | if (!TEST_true(BN_set_word(a, 1))) |
8d1ebff4 RS |
1995 | goto err; |
1996 | BN_set_negative(a, 1); | |
1997 | BN_zero(b); | |
30bea14b | 1998 | if (!TEST_true(BN_mul(c, a, b, ctx))) |
8d1ebff4 | 1999 | goto err; |
dc352c19 P |
2000 | if (!TEST_BN_eq_zero(c) |
2001 | || !TEST_BN_ge_zero(c)) | |
8d1ebff4 | 2002 | goto err; |
8d1ebff4 RS |
2003 | |
2004 | for (consttime = 0; consttime < 2; consttime++) { | |
30bea14b RS |
2005 | if (!TEST_ptr(numerator = BN_new()) |
2006 | || !TEST_ptr(denominator = BN_new())) | |
0f113f3e | 2007 | goto err; |
8d1ebff4 RS |
2008 | if (consttime) { |
2009 | BN_set_flags(numerator, BN_FLG_CONSTTIME); | |
2010 | BN_set_flags(denominator, BN_FLG_CONSTTIME); | |
2011 | } | |
2012 | /* Test that BN_div never gives negative zero in the quotient. */ | |
30bea14b RS |
2013 | if (!TEST_true(BN_set_word(numerator, 1)) |
2014 | || !TEST_true(BN_set_word(denominator, 2))) | |
0f113f3e | 2015 | goto err; |
8d1ebff4 | 2016 | BN_set_negative(numerator, 1); |
30bea14b | 2017 | if (!TEST_true(BN_div(a, b, numerator, denominator, ctx)) |
dc352c19 P |
2018 | || !TEST_BN_eq_zero(a) |
2019 | || !TEST_BN_ge_zero(a)) | |
0f113f3e | 2020 | goto err; |
0f113f3e | 2021 | |
8d1ebff4 | 2022 | /* Test that BN_div never gives negative zero in the remainder. */ |
30bea14b RS |
2023 | if (!TEST_true(BN_set_word(denominator, 1)) |
2024 | || !TEST_true(BN_div(a, b, numerator, denominator, ctx)) | |
dc352c19 P |
2025 | || !TEST_BN_eq_zero(b) |
2026 | || !TEST_BN_ge_zero(b)) | |
0f113f3e | 2027 | goto err; |
8d1ebff4 RS |
2028 | BN_free(numerator); |
2029 | BN_free(denominator); | |
2030 | numerator = denominator = NULL; | |
2031 | } | |
0f113f3e | 2032 | |
8d1ebff4 RS |
2033 | /* Test that BN_set_negative will not produce a negative zero. */ |
2034 | BN_zero(a); | |
2035 | BN_set_negative(a, 1); | |
30bea14b | 2036 | if (BN_is_negative(a)) |
8d1ebff4 | 2037 | goto err; |
8d1ebff4 | 2038 | st = 1; |
30bea14b | 2039 | |
3c97136e | 2040 | err: |
23a1d5e9 RS |
2041 | BN_free(a); |
2042 | BN_free(b); | |
8d1ebff4 RS |
2043 | BN_free(c); |
2044 | BN_free(d); | |
2045 | BN_free(numerator); | |
2046 | BN_free(denominator); | |
2047 | return st; | |
0f113f3e | 2048 | } |
c7820896 | 2049 | |
31a80694 | 2050 | static int test_badmod(void) |
0f113f3e | 2051 | { |
30bea14b RS |
2052 | BIGNUM *a = NULL, *b = NULL, *zero = NULL; |
2053 | BN_MONT_CTX *mont = NULL; | |
8d1ebff4 | 2054 | int st = 0; |
0f113f3e | 2055 | |
30bea14b RS |
2056 | if (!TEST_ptr(a = BN_new()) |
2057 | || !TEST_ptr(b = BN_new()) | |
2058 | || !TEST_ptr(zero = BN_new()) | |
2059 | || !TEST_ptr(mont = BN_MONT_CTX_new())) | |
0f113f3e | 2060 | goto err; |
8d1ebff4 | 2061 | BN_zero(zero); |
0f113f3e | 2062 | |
30bea14b | 2063 | if (!TEST_false(BN_div(a, b, BN_value_one(), zero, ctx))) |
8d1ebff4 | 2064 | goto err; |
8d1ebff4 | 2065 | ERR_clear_error(); |
0f113f3e | 2066 | |
30bea14b | 2067 | if (!TEST_false(BN_mod_mul(a, BN_value_one(), BN_value_one(), zero, ctx))) |
8d1ebff4 | 2068 | goto err; |
8d1ebff4 | 2069 | ERR_clear_error(); |
0f113f3e | 2070 | |
30bea14b | 2071 | if (!TEST_false(BN_mod_exp(a, BN_value_one(), BN_value_one(), zero, ctx))) |
8d1ebff4 | 2072 | goto err; |
8d1ebff4 | 2073 | ERR_clear_error(); |
0f113f3e | 2074 | |
30bea14b RS |
2075 | if (!TEST_false(BN_mod_exp_mont(a, BN_value_one(), BN_value_one(), |
2076 | zero, ctx, NULL))) | |
8d1ebff4 | 2077 | goto err; |
8d1ebff4 | 2078 | ERR_clear_error(); |
0f113f3e | 2079 | |
30bea14b | 2080 | if (!TEST_false(BN_mod_exp_mont_consttime(a, BN_value_one(), BN_value_one(), |
3c97136e | 2081 | zero, ctx, NULL))) |
8d1ebff4 | 2082 | goto err; |
8d1ebff4 | 2083 | ERR_clear_error(); |
0f113f3e | 2084 | |
30bea14b | 2085 | if (!TEST_false(BN_MONT_CTX_set(mont, zero, ctx))) |
8d1ebff4 | 2086 | goto err; |
8d1ebff4 | 2087 | ERR_clear_error(); |
0f113f3e | 2088 | |
8d1ebff4 | 2089 | /* Some operations also may not be used with an even modulus. */ |
30bea14b | 2090 | if (!TEST_true(BN_set_word(b, 16))) |
8d1ebff4 | 2091 | goto err; |
0f113f3e | 2092 | |
30bea14b | 2093 | if (!TEST_false(BN_MONT_CTX_set(mont, b, ctx))) |
8d1ebff4 | 2094 | goto err; |
8d1ebff4 | 2095 | ERR_clear_error(); |
0f113f3e | 2096 | |
30bea14b RS |
2097 | if (!TEST_false(BN_mod_exp_mont(a, BN_value_one(), BN_value_one(), |
2098 | b, ctx, NULL))) | |
8d1ebff4 | 2099 | goto err; |
8d1ebff4 RS |
2100 | ERR_clear_error(); |
2101 | ||
30bea14b | 2102 | if (!TEST_false(BN_mod_exp_mont_consttime(a, BN_value_one(), BN_value_one(), |
3c97136e | 2103 | b, ctx, NULL))) |
8d1ebff4 | 2104 | goto err; |
8d1ebff4 RS |
2105 | ERR_clear_error(); |
2106 | ||
2107 | st = 1; | |
3c97136e | 2108 | err: |
23a1d5e9 | 2109 | BN_free(a); |
8d1ebff4 RS |
2110 | BN_free(b); |
2111 | BN_free(zero); | |
2112 | BN_MONT_CTX_free(mont); | |
2113 | return st; | |
0f113f3e MC |
2114 | } |
2115 | ||
31a80694 | 2116 | static int test_expmodzero(void) |
0f113f3e | 2117 | { |
30bea14b | 2118 | BIGNUM *a = NULL, *r = NULL, *zero = NULL; |
8d1ebff4 | 2119 | int st = 0; |
0f113f3e | 2120 | |
30bea14b RS |
2121 | if (!TEST_ptr(zero = BN_new()) |
2122 | || !TEST_ptr(a = BN_new()) | |
2123 | || !TEST_ptr(r = BN_new())) | |
0f113f3e | 2124 | goto err; |
8d1ebff4 RS |
2125 | BN_zero(zero); |
2126 | ||
30bea14b | 2127 | if (!TEST_true(BN_mod_exp(r, a, zero, BN_value_one(), NULL)) |
dc352c19 | 2128 | || !TEST_BN_eq_zero(r) |
30bea14b RS |
2129 | || !TEST_true(BN_mod_exp_mont(r, a, zero, BN_value_one(), |
2130 | NULL, NULL)) | |
dc352c19 | 2131 | || !TEST_BN_eq_zero(r) |
30bea14b RS |
2132 | || !TEST_true(BN_mod_exp_mont_consttime(r, a, zero, |
2133 | BN_value_one(), | |
2134 | NULL, NULL)) | |
dc352c19 | 2135 | || !TEST_BN_eq_zero(r) |
30bea14b RS |
2136 | || !TEST_true(BN_mod_exp_mont_word(r, 42, zero, |
2137 | BN_value_one(), NULL, NULL)) | |
dc352c19 | 2138 | || !TEST_BN_eq_zero(r)) |
0f113f3e | 2139 | goto err; |
0f113f3e | 2140 | |
8d1ebff4 | 2141 | st = 1; |
3c97136e | 2142 | err: |
8d1ebff4 RS |
2143 | BN_free(zero); |
2144 | BN_free(a); | |
2145 | BN_free(r); | |
2146 | return st; | |
0f113f3e MC |
2147 | } |
2148 | ||
adf65243 MC |
2149 | static int test_expmodone(void) |
2150 | { | |
2151 | int ret = 0, i; | |
2152 | BIGNUM *r = BN_new(); | |
2153 | BIGNUM *a = BN_new(); | |
2154 | BIGNUM *p = BN_new(); | |
2155 | BIGNUM *m = BN_new(); | |
2156 | ||
2157 | if (!TEST_ptr(r) | |
2158 | || !TEST_ptr(a) | |
2159 | || !TEST_ptr(p) | |
2160 | || !TEST_ptr(p) | |
2161 | || !TEST_ptr(m) | |
2162 | || !TEST_true(BN_set_word(a, 1)) | |
2163 | || !TEST_true(BN_set_word(p, 0)) | |
2164 | || !TEST_true(BN_set_word(m, 1))) | |
2165 | goto err; | |
2166 | ||
2167 | /* Calculate r = 1 ^ 0 mod 1, and check the result is always 0 */ | |
2168 | for (i = 0; i < 2; i++) { | |
2169 | if (!TEST_true(BN_mod_exp(r, a, p, m, NULL)) | |
2170 | || !TEST_BN_eq_zero(r) | |
2171 | || !TEST_true(BN_mod_exp_mont(r, a, p, m, NULL, NULL)) | |
2172 | || !TEST_BN_eq_zero(r) | |
2173 | || !TEST_true(BN_mod_exp_mont_consttime(r, a, p, m, NULL, NULL)) | |
2174 | || !TEST_BN_eq_zero(r) | |
2175 | || !TEST_true(BN_mod_exp_mont_word(r, 1, p, m, NULL, NULL)) | |
2176 | || !TEST_BN_eq_zero(r) | |
2177 | || !TEST_true(BN_mod_exp_simple(r, a, p, m, NULL)) | |
2178 | || !TEST_BN_eq_zero(r) | |
2179 | || !TEST_true(BN_mod_exp_recp(r, a, p, m, NULL)) | |
2180 | || !TEST_BN_eq_zero(r)) | |
2181 | goto err; | |
2182 | /* Repeat for r = 1 ^ 0 mod -1 */ | |
2183 | if (i == 0) | |
2184 | BN_set_negative(m, 1); | |
2185 | } | |
2186 | ||
2187 | ret = 1; | |
3c97136e | 2188 | err: |
adf65243 MC |
2189 | BN_free(r); |
2190 | BN_free(a); | |
2191 | BN_free(p); | |
2192 | BN_free(m); | |
2193 | return ret; | |
2194 | } | |
2195 | ||
9fd44200 | 2196 | static int test_smallprime(int kBits) |
8ff70f33 | 2197 | { |
30bea14b | 2198 | BIGNUM *r; |
8d1ebff4 | 2199 | int st = 0; |
8ff70f33 | 2200 | |
9fd44200 BE |
2201 | if (!TEST_ptr(r = BN_new())) |
2202 | goto err; | |
2203 | ||
2204 | if (kBits <= 1) { | |
2205 | if (!TEST_false(BN_generate_prime_ex(r, kBits, 0, | |
2206 | NULL, NULL, NULL))) | |
2207 | goto err; | |
2208 | } else { | |
2209 | if (!TEST_true(BN_generate_prime_ex(r, kBits, 0, | |
2210 | NULL, NULL, NULL)) | |
2211 | || !TEST_int_eq(BN_num_bits(r), kBits)) | |
2212 | goto err; | |
2213 | } | |
2214 | ||
2215 | st = 1; | |
2216 | err: | |
2217 | BN_free(r); | |
2218 | return st; | |
2219 | } | |
2220 | ||
2221 | static int test_smallsafeprime(int kBits) | |
2222 | { | |
2223 | BIGNUM *r; | |
2224 | int st = 0; | |
2225 | ||
2226 | if (!TEST_ptr(r = BN_new())) | |
8d1ebff4 | 2227 | goto err; |
8ff70f33 | 2228 | |
9fd44200 BE |
2229 | if (kBits <= 5 && kBits != 3) { |
2230 | if (!TEST_false(BN_generate_prime_ex(r, kBits, 1, | |
2231 | NULL, NULL, NULL))) | |
2232 | goto err; | |
2233 | } else { | |
2234 | if (!TEST_true(BN_generate_prime_ex(r, kBits, 1, | |
2235 | NULL, NULL, NULL)) | |
2236 | || !TEST_int_eq(BN_num_bits(r), kBits)) | |
2237 | goto err; | |
2238 | } | |
2239 | ||
8d1ebff4 | 2240 | st = 1; |
3c97136e | 2241 | err: |
8d1ebff4 RS |
2242 | BN_free(r); |
2243 | return st; | |
2244 | } | |
8ff70f33 | 2245 | |
7d79d13a SL |
2246 | static int primes[] = { 2, 3, 5, 7, 17863 }; |
2247 | ||
2248 | static int test_is_prime(int i) | |
6e64c560 AL |
2249 | { |
2250 | int ret = 0; | |
30bea14b | 2251 | BIGNUM *r = NULL; |
7d79d13a | 2252 | int trial; |
6e64c560 | 2253 | |
7d79d13a | 2254 | if (!TEST_ptr(r = BN_new())) |
6e64c560 | 2255 | goto err; |
6e64c560 | 2256 | |
7d79d13a SL |
2257 | for (trial = 0; trial <= 1; ++trial) { |
2258 | if (!TEST_true(BN_set_word(r, primes[i])) | |
2259 | || !TEST_int_eq(BN_is_prime_fasttest_ex(r, 1, ctx, trial, NULL), | |
2260 | 1)) | |
2261 | goto err; | |
2262 | } | |
2263 | ||
6e64c560 | 2264 | ret = 1; |
3c97136e | 2265 | err: |
7d79d13a SL |
2266 | BN_free(r); |
2267 | return ret; | |
2268 | } | |
6e64c560 | 2269 | |
7d79d13a SL |
2270 | static int not_primes[] = { -1, 0, 1, 4 }; |
2271 | ||
2272 | static int test_not_prime(int i) | |
2273 | { | |
2274 | int ret = 0; | |
2275 | BIGNUM *r = NULL; | |
2276 | int trial; | |
2277 | ||
2278 | if (!TEST_ptr(r = BN_new())) | |
2279 | goto err; | |
2280 | ||
2281 | for (trial = 0; trial <= 1; ++trial) { | |
2282 | if (!TEST_true(BN_set_word(r, not_primes[i])) | |
2283 | || !TEST_false(BN_is_prime_fasttest_ex(r, 1, ctx, trial, NULL))) | |
2284 | goto err; | |
2285 | } | |
2286 | ||
2287 | ret = 1; | |
3c97136e | 2288 | err: |
6e64c560 AL |
2289 | BN_free(r); |
2290 | return ret; | |
2291 | } | |
2292 | ||
3c97136e NT |
2293 | static int test_ctx_set_ct_flag(BN_CTX *c) |
2294 | { | |
2295 | int st = 0; | |
2296 | size_t i; | |
2297 | BIGNUM *b[15]; | |
2298 | ||
2299 | BN_CTX_start(c); | |
2300 | for (i = 0; i < OSSL_NELEM(b); i++) { | |
2301 | if (!TEST_ptr(b[i] = BN_CTX_get(c))) | |
2302 | goto err; | |
2303 | if (i % 2 == 1) | |
2304 | BN_set_flags(b[i], BN_FLG_CONSTTIME); | |
2305 | } | |
2306 | ||
2307 | st = 1; | |
2308 | err: | |
2309 | BN_CTX_end(c); | |
2310 | return st; | |
2311 | } | |
2312 | ||
2313 | static int test_ctx_check_ct_flag(BN_CTX *c) | |
2314 | { | |
2315 | int st = 0; | |
2316 | size_t i; | |
2317 | BIGNUM *b[30]; | |
2318 | ||
2319 | BN_CTX_start(c); | |
2320 | for (i = 0; i < OSSL_NELEM(b); i++) { | |
2321 | if (!TEST_ptr(b[i] = BN_CTX_get(c))) | |
2322 | goto err; | |
2323 | if (!TEST_false(BN_get_flags(b[i], BN_FLG_CONSTTIME))) | |
2324 | goto err; | |
2325 | } | |
2326 | ||
2327 | st = 1; | |
2328 | err: | |
2329 | BN_CTX_end(c); | |
2330 | return st; | |
2331 | } | |
2332 | ||
2333 | static int test_ctx_consttime_flag(void) | |
2334 | { | |
2335 | /*- | |
2336 | * The constant-time flag should not "leak" among BN_CTX frames: | |
2337 | * | |
2338 | * - test_ctx_set_ct_flag() starts a frame in the given BN_CTX and | |
2339 | * sets the BN_FLG_CONSTTIME flag on some of the BIGNUMs obtained | |
2340 | * from the frame before ending it. | |
2341 | * - test_ctx_check_ct_flag() then starts a new frame and gets a | |
2342 | * number of BIGNUMs from it. In absence of leaks, none of the | |
2343 | * BIGNUMs in the new frame should have BN_FLG_CONSTTIME set. | |
2344 | * | |
2345 | * In actual BN_CTX usage inside libcrypto the leak could happen at | |
2346 | * any depth level in the BN_CTX stack, with varying results | |
2347 | * depending on the patterns of sibling trees of nested function | |
2348 | * calls sharing the same BN_CTX object, and the effect of | |
2349 | * unintended BN_FLG_CONSTTIME on the called BN_* functions. | |
2350 | * | |
2351 | * This simple unit test abstracts away this complexity and verifies | |
2352 | * that the leak does not happen between two sibling functions | |
2353 | * sharing the same BN_CTX object at the same level of nesting. | |
2354 | * | |
2355 | */ | |
2356 | BN_CTX *nctx = NULL; | |
2357 | BN_CTX *sctx = NULL; | |
2358 | size_t i = 0; | |
2359 | int st = 0; | |
2360 | ||
2361 | if (!TEST_ptr(nctx = BN_CTX_new()) | |
2362 | || !TEST_ptr(sctx = BN_CTX_secure_new())) | |
2363 | goto err; | |
2364 | ||
2365 | for (i = 0; i < 2; i++) { | |
2366 | BN_CTX *c = i == 0 ? nctx : sctx; | |
2367 | if (!TEST_true(test_ctx_set_ct_flag(c)) | |
2368 | || !TEST_true(test_ctx_check_ct_flag(c))) | |
2369 | goto err; | |
2370 | } | |
2371 | ||
2372 | st = 1; | |
2373 | err: | |
2374 | BN_CTX_free(nctx); | |
2375 | BN_CTX_free(sctx); | |
2376 | return st; | |
2377 | } | |
2378 | ||
aa20a9b3 CPG |
2379 | static int test_gcd_prime(void) |
2380 | { | |
2381 | BIGNUM *a = NULL, *b = NULL, *gcd = NULL; | |
2382 | int i, st = 0; | |
2383 | ||
2384 | if (!TEST_ptr(a = BN_new()) | |
2385 | || !TEST_ptr(b = BN_new()) | |
2386 | || !TEST_ptr(gcd = BN_new())) | |
2387 | goto err; | |
2388 | ||
2389 | if (!TEST_true(BN_generate_prime_ex(a, 1024, 0, NULL, NULL, NULL))) | |
2390 | goto err; | |
2391 | for (i = 0; i < NUM0; i++) { | |
2392 | if (!TEST_true(BN_generate_prime_ex(b, 1024, 0, | |
2393 | NULL, NULL, NULL)) | |
2394 | || !TEST_true(BN_gcd(gcd, a, b, ctx)) | |
2395 | || !TEST_true(BN_is_one(gcd))) | |
2396 | goto err; | |
2397 | } | |
2398 | ||
2399 | st = 1; | |
2400 | err: | |
2401 | BN_free(a); | |
2402 | BN_free(b); | |
2403 | BN_free(gcd); | |
2404 | return st; | |
2405 | } | |
2406 | ||
08fb8323 BE |
2407 | typedef struct mod_exp_test_st |
2408 | { | |
2409 | const char *base; | |
2410 | const char *exp; | |
2411 | const char *mod; | |
2412 | const char *res; | |
2413 | } MOD_EXP_TEST; | |
2414 | ||
2415 | static const MOD_EXP_TEST ModExpTests[] = { | |
2416 | /* original test vectors for rsaz_512_sqr bug, by OSS-Fuzz */ | |
2417 | { | |
2418 | "1166180238001879113042182292626169621106255558914000595999312084" | |
2419 | "4627946820899490684928760491249738643524880720584249698100907201" | |
2420 | "002086675047927600340800371", | |
2421 | "8000000000000000000000000000000000000000000000000000000000000000" | |
2422 | "0000000000000000000000000000000000000000000000000000000000000000" | |
2423 | "00000000", | |
2424 | "1340780792684523720980737645613191762604395855615117867483316354" | |
2425 | "3294276330515137663421134775482798690129946803802212663956180562" | |
2426 | "088664022929883876655300863", | |
2427 | "8243904058268085430037326628480645845409758077568738532059032482" | |
2428 | "8294114415890603594730158120426756266457928475330450251339773498" | |
2429 | "26758407619521544102068438" | |
2430 | }, | |
2431 | { | |
2432 | "4974270041410803822078866696159586946995877618987010219312844726" | |
2433 | "0284386121835740784990869050050504348861513337232530490826340663" | |
2434 | "197278031692737429054", | |
2435 | "4974270041410803822078866696159586946995877428188754995041148539" | |
2436 | "1663243362592271353668158565195557417149981094324650322556843202" | |
2437 | "946445882670777892608", | |
2438 | "1340780716511420227215592830971452482815377482627251725537099028" | |
2439 | "4429769497230131760206012644403029349547320953206103351725462999" | |
2440 | "947509743623340557059752191", | |
2441 | "5296244594780707015616522701706118082963369547253192207884519362" | |
2442 | "1767869984947542695665420219028522815539559194793619684334900442" | |
2443 | "49304558011362360473525933" | |
2444 | }, | |
2445 | /* test vectors for rsaz_512_srq bug, with rcx/rbx=1 */ | |
2446 | { /* between first and second iteration */ | |
2447 | "5148719036160389201525610950887605325980251964889646556085286545" | |
2448 | "3931548809178823413169359635978762036512397113080988070677858033" | |
2449 | "36463909753993540214027190", | |
2450 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2451 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2452 | "05973284973216824503042158", | |
2453 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2454 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2455 | "05973284973216824503042159", | |
2456 | "1" | |
2457 | }, | |
2458 | { /* between second and third iteration */ | |
2459 | "8908340854353752577419678771330460827942371434853054158622636544" | |
2460 | "8151360109722890949471912566649465436296659601091730745087014189" | |
2461 | "2672764191218875181826063", | |
2462 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2463 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2464 | "05973284973216824503042158", | |
2465 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2466 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2467 | "05973284973216824503042159", | |
2468 | "1" | |
2469 | }, | |
2470 | { /* between third and fourth iteration */ | |
2471 | "3427446396505596330634350984901719674479522569002785244080234738" | |
2472 | "4288743635435746136297299366444548736533053717416735379073185344" | |
2473 | "26985272974404612945608761", | |
2474 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2475 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2476 | "05973284973216824503042158", | |
2477 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2478 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2479 | "05973284973216824503042159", | |
2480 | "1" | |
2481 | }, | |
2482 | { /* between fourth and fifth iteration */ | |
2483 | "3472743044917564564078857826111874560045331237315597383869652985" | |
2484 | "6919870028890895988478351133601517365908445058405433832718206902" | |
2485 | "4088133164805266956353542", | |
2486 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2487 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2488 | "05973284973216824503042158", | |
2489 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2490 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2491 | "05973284973216824503042159", | |
2492 | "1" | |
2493 | }, | |
2494 | { /* between fifth and sixth iteration */ | |
2495 | "3608632990153469264412378349742339216742409743898601587274768025" | |
2496 | "0110772032985643555192767717344946174122842255204082586753499651" | |
2497 | "14483434992887431333675068", | |
2498 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2499 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2500 | "05973284973216824503042158", | |
2501 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2502 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2503 | "05973284973216824503042159", | |
2504 | "1" | |
2505 | }, | |
2506 | { /* between sixth and seventh iteration */ | |
2507 | "8455374370234070242910508226941981520235709767260723212165264877" | |
2508 | "8689064388017521524568434328264431772644802567028663962962025746" | |
2509 | "9283458217850119569539086", | |
2510 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2511 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2512 | "05973284973216824503042158", | |
2513 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2514 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2515 | "05973284973216824503042159", | |
2516 | "1" | |
2517 | }, | |
2518 | { /* between seventh and eighth iteration */ | |
2519 | "5155371529688532178421209781159131443543419764974688878527112131" | |
2520 | "7446518205609427412336183157918981038066636807317733319323257603" | |
2521 | "04416292040754017461076359", | |
2522 | "1005585594745694782468051874865438459560952436544429503329267108" | |
2523 | "2791323022555160232601405723625177570767523893639864538140315412" | |
2524 | "108959927459825236754563832", | |
2525 | "1005585594745694782468051874865438459560952436544429503329267108" | |
2526 | "2791323022555160232601405723625177570767523893639864538140315412" | |
2527 | "108959927459825236754563833", | |
2528 | "1" | |
2529 | }, | |
2530 | /* test vectors for rsaz_512_srq bug, with rcx/rbx=2 */ | |
2531 | { /* between first and second iteration */ | |
2532 | "3155666506033786929967309937640790361084670559125912405342594979" | |
2533 | "4345142818528956285490897841406338022378565972533508820577760065" | |
2534 | "58494345853302083699912572", | |
2535 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2536 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2537 | "05973284973216824503042158", | |
2538 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2539 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2540 | "05973284973216824503042159", | |
2541 | "1" | |
2542 | }, | |
2543 | { /* between second and third iteration */ | |
2544 | "3789819583801342198190405714582958759005991915505282362397087750" | |
2545 | "4213544724644823098843135685133927198668818185338794377239590049" | |
2546 | "41019388529192775771488319", | |
2547 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2548 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2549 | "05973284973216824503042158", | |
2550 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2551 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2552 | "05973284973216824503042159", | |
2553 | "1" | |
2554 | }, | |
2555 | { /* between third and forth iteration */ | |
2556 | "4695752552040706867080542538786056470322165281761525158189220280" | |
2557 | "4025547447667484759200742764246905647644662050122968912279199065" | |
2558 | "48065034299166336940507214", | |
2559 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2560 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2561 | "05973284973216824503042158", | |
2562 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2563 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2564 | "05973284973216824503042159", | |
2565 | "1" | |
2566 | }, | |
2567 | { /* between forth and fifth iteration */ | |
2568 | "2159140240970485794188159431017382878636879856244045329971239574" | |
2569 | "8919691133560661162828034323196457386059819832804593989740268964" | |
2570 | "74502911811812651475927076", | |
2571 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2572 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2573 | "05973284973216824503042158", | |
2574 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2575 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2576 | "05973284973216824503042159", | |
2577 | "1" | |
2578 | }, | |
2579 | { /* between fifth and sixth iteration */ | |
2580 | "5239312332984325668414624633307915097111691815000872662334695514" | |
2581 | "5436533521392362443557163429336808208137221322444780490437871903" | |
2582 | "99972784701334569424519255", | |
2583 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2584 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2585 | "05973284973216824503042158", | |
2586 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2587 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2588 | "05973284973216824503042159", | |
2589 | "1" | |
2590 | }, | |
2591 | { /* between sixth and seventh iteration */ | |
2592 | "1977953647322612860406858017869125467496941904523063466791308891" | |
2593 | "1172796739058531929470539758361774569875505293428856181093904091" | |
2594 | "33788264851714311303725089", | |
2595 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2596 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2597 | "05973284973216824503042158", | |
2598 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2599 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2600 | "05973284973216824503042159", | |
2601 | "1" | |
2602 | }, | |
2603 | { /* between seventh and eighth iteration */ | |
2604 | "6456987954117763835533395796948878140715006860263624787492985786" | |
2605 | "8514630216966738305923915688821526449499763719943997120302368211" | |
2606 | "04813318117996225041943964", | |
2607 | "1340780792994259709957402499820584612747936582059239337772356144" | |
2608 | "3721764030073546976801874298166903427690031858186486050853753882" | |
2609 | "811946551499689575296532556", | |
2610 | "1340780792994259709957402499820584612747936582059239337772356144" | |
2611 | "3721764030073546976801874298166903427690031858186486050853753882" | |
2612 | "811946551499689575296532557", | |
2613 | "1" | |
2614 | } | |
2615 | }; | |
2616 | ||
2617 | static int test_mod_exp(int i) | |
2618 | { | |
2619 | const MOD_EXP_TEST *test = &ModExpTests[i]; | |
2620 | int res = 0; | |
2621 | BIGNUM* result = NULL; | |
2622 | BIGNUM *base = NULL, *exponent = NULL, *modulo = NULL; | |
2623 | char *s = NULL; | |
2624 | ||
2625 | if (!TEST_ptr(result = BN_new()) | |
2626 | || !TEST_true(BN_dec2bn(&base, test->base)) | |
2627 | || !TEST_true(BN_dec2bn(&exponent, test->exp)) | |
2628 | || !TEST_true(BN_dec2bn(&modulo, test->mod))) | |
2629 | goto err; | |
2630 | ||
2631 | if (!TEST_int_eq(BN_mod_exp(result, base, exponent, modulo, ctx), 1)) | |
2632 | goto err; | |
2633 | ||
2634 | if (!TEST_ptr(s = BN_bn2dec(result))) | |
2635 | goto err; | |
2636 | ||
2637 | if (!TEST_mem_eq(s, strlen(s), test->res, strlen(test->res))) | |
2638 | goto err; | |
2639 | ||
2640 | res = 1; | |
2641 | ||
2642 | err: | |
2643 | OPENSSL_free(s); | |
2644 | BN_free(result); | |
2645 | BN_free(base); | |
2646 | BN_free(exponent); | |
2647 | BN_free(modulo); | |
2648 | return res; | |
2649 | } | |
2650 | ||
2651 | static int test_mod_exp_consttime(int i) | |
2652 | { | |
2653 | const MOD_EXP_TEST *test = &ModExpTests[i]; | |
2654 | int res = 0; | |
2655 | BIGNUM* result = NULL; | |
2656 | BIGNUM *base = NULL, *exponent = NULL, *modulo = NULL; | |
2657 | char *s = NULL; | |
2658 | ||
2659 | if (!TEST_ptr(result = BN_new()) | |
2660 | || !TEST_true(BN_dec2bn(&base, test->base)) | |
2661 | || !TEST_true(BN_dec2bn(&exponent, test->exp)) | |
2662 | || !TEST_true(BN_dec2bn(&modulo, test->mod))) | |
2663 | goto err; | |
2664 | ||
2665 | BN_set_flags(base, BN_FLG_CONSTTIME); | |
2666 | BN_set_flags(exponent, BN_FLG_CONSTTIME); | |
2667 | BN_set_flags(modulo, BN_FLG_CONSTTIME); | |
2668 | ||
2669 | if (!TEST_int_eq(BN_mod_exp(result, base, exponent, modulo, ctx), 1)) | |
2670 | goto err; | |
2671 | ||
2672 | if (!TEST_ptr(s = BN_bn2dec(result))) | |
2673 | goto err; | |
2674 | ||
2675 | if (!TEST_mem_eq(s, strlen(s), test->res, strlen(test->res))) | |
2676 | goto err; | |
2677 | ||
2678 | res = 1; | |
2679 | ||
2680 | err: | |
2681 | OPENSSL_free(s); | |
2682 | BN_free(result); | |
2683 | BN_free(base); | |
2684 | BN_free(exponent); | |
2685 | BN_free(modulo); | |
2686 | return res; | |
2687 | } | |
2688 | ||
8d1ebff4 | 2689 | static int file_test_run(STANZA *s) |
0f113f3e | 2690 | { |
8d1ebff4 RS |
2691 | static const FILETEST filetests[] = { |
2692 | {"Sum", file_sum}, | |
2693 | {"LShift1", file_lshift1}, | |
2694 | {"LShift", file_lshift}, | |
2695 | {"RShift", file_rshift}, | |
2696 | {"Square", file_square}, | |
2697 | {"Product", file_product}, | |
2698 | {"Quotient", file_quotient}, | |
2699 | {"ModMul", file_modmul}, | |
2700 | {"ModExp", file_modexp}, | |
2701 | {"Exp", file_exp}, | |
2702 | {"ModSqrt", file_modsqrt}, | |
aa20a9b3 | 2703 | {"GCD", file_gcd}, |
8d1ebff4 RS |
2704 | }; |
2705 | int numtests = OSSL_NELEM(filetests); | |
2706 | const FILETEST *tp = filetests; | |
0f113f3e | 2707 | |
8d1ebff4 | 2708 | for ( ; --numtests >= 0; tp++) { |
30bea14b RS |
2709 | if (findattr(s, tp->name) != NULL) { |
2710 | if (!tp->func(s)) { | |
ae269dd8 RS |
2711 | TEST_info("%s:%d: Failed %s test", |
2712 | s->test_file, s->start, tp->name); | |
30bea14b RS |
2713 | return 0; |
2714 | } | |
2715 | return 1; | |
2716 | } | |
0f113f3e | 2717 | } |
ae269dd8 | 2718 | TEST_info("%s:%d: Unknown test", s->test_file, s->start); |
8d1ebff4 | 2719 | return 0; |
0f113f3e | 2720 | } |
d02b48c6 | 2721 | |
e1cfd184 | 2722 | static int run_file_tests(int i) |
0f113f3e | 2723 | { |
ae269dd8 | 2724 | STANZA *s = NULL; |
ad887416 | 2725 | char *testfile = test_get_argument(i); |
ae269dd8 | 2726 | int c; |
0f113f3e | 2727 | |
ae269dd8 | 2728 | if (!TEST_ptr(s = OPENSSL_zalloc(sizeof(*s)))) |
e1cfd184 | 2729 | return 0; |
ad887416 | 2730 | if (!test_start_file(s, testfile)) { |
ae269dd8 RS |
2731 | OPENSSL_free(s); |
2732 | return 0; | |
2733 | } | |
e1cfd184 | 2734 | |
8d1ebff4 | 2735 | /* Read test file. */ |
ae269dd8 RS |
2736 | while (!BIO_eof(s->fp) && test_readstanza(s)) { |
2737 | if (s->numpairs == 0) | |
8d1ebff4 | 2738 | continue; |
ae269dd8 RS |
2739 | if (!file_test_run(s)) |
2740 | s->errors++; | |
2741 | s->numtests++; | |
2742 | test_clearstanza(s); | |
0f113f3e | 2743 | } |
ae269dd8 RS |
2744 | test_end_file(s); |
2745 | c = s->errors; | |
2746 | OPENSSL_free(s); | |
8d1ebff4 | 2747 | |
ae269dd8 | 2748 | return c == 0; |
0f113f3e | 2749 | } |
d02b48c6 | 2750 | |
e1cfd184 | 2751 | |
ad887416 | 2752 | int setup_tests(void) |
0f113f3e | 2753 | { |
ad887416 | 2754 | int n = test_get_argument_count(); |
8d1ebff4 | 2755 | |
e1cfd184 | 2756 | if (!TEST_ptr(ctx = BN_CTX_new())) |
ad887416 | 2757 | return 0; |
e1cfd184 | 2758 | |
ad887416 | 2759 | if (n == 0) { |
e1cfd184 RS |
2760 | ADD_TEST(test_sub); |
2761 | ADD_TEST(test_div_recip); | |
2762 | ADD_TEST(test_mod); | |
2763 | ADD_TEST(test_modexp_mont5); | |
2764 | ADD_TEST(test_kronecker); | |
2765 | ADD_TEST(test_rand); | |
2766 | ADD_TEST(test_bn2padded); | |
2767 | ADD_TEST(test_dec2bn); | |
2768 | ADD_TEST(test_hex2bn); | |
2769 | ADD_TEST(test_asc2bn); | |
2770 | ADD_ALL_TESTS(test_mpi, (int)OSSL_NELEM(kMPITests)); | |
2771 | ADD_TEST(test_negzero); | |
2772 | ADD_TEST(test_badmod); | |
2773 | ADD_TEST(test_expmodzero); | |
adf65243 | 2774 | ADD_TEST(test_expmodone); |
9fd44200 BE |
2775 | ADD_ALL_TESTS(test_smallprime, 16); |
2776 | ADD_ALL_TESTS(test_smallsafeprime, 16); | |
9e5b50b5 | 2777 | ADD_TEST(test_swap); |
3c97136e | 2778 | ADD_TEST(test_ctx_consttime_flag); |
8d1ebff4 | 2779 | #ifndef OPENSSL_NO_EC2M |
e1cfd184 RS |
2780 | ADD_TEST(test_gf2m_add); |
2781 | ADD_TEST(test_gf2m_mod); | |
2782 | ADD_TEST(test_gf2m_mul); | |
2783 | ADD_TEST(test_gf2m_sqr); | |
2784 | ADD_TEST(test_gf2m_modinv); | |
2785 | ADD_TEST(test_gf2m_moddiv); | |
2786 | ADD_TEST(test_gf2m_modexp); | |
2787 | ADD_TEST(test_gf2m_modsqrt); | |
2788 | ADD_TEST(test_gf2m_modsolvequad); | |
8d1ebff4 | 2789 | #endif |
7d79d13a SL |
2790 | ADD_ALL_TESTS(test_is_prime, (int)OSSL_NELEM(primes)); |
2791 | ADD_ALL_TESTS(test_not_prime, (int)OSSL_NELEM(not_primes)); | |
aa20a9b3 | 2792 | ADD_TEST(test_gcd_prime); |
08fb8323 BE |
2793 | ADD_ALL_TESTS(test_mod_exp, (int)OSSL_NELEM(ModExpTests)); |
2794 | ADD_ALL_TESTS(test_mod_exp_consttime, (int)OSSL_NELEM(ModExpTests)); | |
e1cfd184 | 2795 | } else { |
ad887416 | 2796 | ADD_ALL_TESTS(run_file_tests, n); |
e1cfd184 | 2797 | } |
ad887416 P |
2798 | return 1; |
2799 | } | |
8d1ebff4 | 2800 | |
ad887416 P |
2801 | void cleanup_tests(void) |
2802 | { | |
8d1ebff4 | 2803 | BN_CTX_free(ctx); |
0f113f3e | 2804 | } |