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Commit | Line | Data |
---|---|---|
440e5d80 | 1 | /* |
da1c088f | 2 | * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
909f1a2e | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
440e5d80 RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
d02b48c6 | 8 | */ |
8d1ebff4 RS |
9 | #include <assert.h> |
10 | #include <errno.h> | |
d02b48c6 | 11 | #include <stdio.h> |
d02b48c6 | 12 | #include <string.h> |
08073700 RB |
13 | #ifdef __TANDEM |
14 | # include <strings.h> /* strcasecmp */ | |
15 | #endif | |
8d1ebff4 | 16 | #include <ctype.h> |
17e3dd1c | 17 | |
ec577822 | 18 | #include <openssl/bn.h> |
8d1ebff4 | 19 | #include <openssl/crypto.h> |
ec577822 | 20 | #include <openssl/err.h> |
8d1ebff4 | 21 | #include <openssl/rand.h> |
2b1aa198 RL |
22 | #include "internal/nelem.h" |
23 | #include "internal/numbers.h" | |
8d1ebff4 | 24 | #include "testutil.h" |
d02b48c6 | 25 | |
8d1ebff4 | 26 | /* |
fd009d76 | 27 | * Things in boring, not in openssl. |
8d1ebff4 | 28 | */ |
8d1ebff4 | 29 | #define HAVE_BN_SQRT 0 |
0f113f3e | 30 | |
8d1ebff4 RS |
31 | typedef struct filetest_st { |
32 | const char *name; | |
33 | int (*func)(STANZA *s); | |
34 | } FILETEST; | |
0f113f3e | 35 | |
8d1ebff4 RS |
36 | typedef struct mpitest_st { |
37 | const char *base10; | |
38 | const char *mpi; | |
39 | size_t mpi_len; | |
40 | } MPITEST; | |
0f113f3e | 41 | |
8d1ebff4 RS |
42 | static const int NUM0 = 100; /* number of tests */ |
43 | static const int NUM1 = 50; /* additional tests for some functions */ | |
dd1d7bcb | 44 | static const int NUM_PRIME_TESTS = 20; |
8d1ebff4 | 45 | static BN_CTX *ctx; |
0f113f3e | 46 | |
30bea14b RS |
47 | /* |
48 | * Polynomial coefficients used in GFM tests. | |
49 | */ | |
ed5c7ea2 | 50 | #ifndef OPENSSL_NO_EC2M |
30bea14b RS |
51 | static int p0[] = { 163, 7, 6, 3, 0, -1 }; |
52 | static int p1[] = { 193, 15, 0, -1 }; | |
ed5c7ea2 | 53 | #endif |
0f113f3e | 54 | |
8d1ebff4 RS |
55 | /* |
56 | * Look for |key| in the stanza and return it or NULL if not found. | |
57 | */ | |
58 | static const char *findattr(STANZA *s, const char *key) | |
59 | { | |
60 | int i = s->numpairs; | |
61 | PAIR *pp = s->pairs; | |
0f113f3e | 62 | |
8d1ebff4 | 63 | for ( ; --i >= 0; pp++) |
fba140c7 | 64 | if (OPENSSL_strcasecmp(pp->key, key) == 0) |
8d1ebff4 RS |
65 | return pp->value; |
66 | return NULL; | |
67 | } | |
0f113f3e | 68 | |
4483fbae F |
69 | /* |
70 | * Parse BIGNUM from sparse hex-strings, return |BN_hex2bn| result. | |
71 | */ | |
72 | static int parse_bigBN(BIGNUM **out, const char *bn_strings[]) | |
73 | { | |
74 | char *bigstring = glue_strings(bn_strings, NULL); | |
75 | int ret = BN_hex2bn(out, bigstring); | |
76 | ||
77 | OPENSSL_free(bigstring); | |
78 | return ret; | |
79 | } | |
80 | ||
8d1ebff4 RS |
81 | /* |
82 | * Parse BIGNUM, return number of bytes parsed. | |
83 | */ | |
84 | static int parseBN(BIGNUM **out, const char *in) | |
85 | { | |
86 | *out = NULL; | |
87 | return BN_hex2bn(out, in); | |
88 | } | |
0f113f3e | 89 | |
8d1ebff4 RS |
90 | static int parsedecBN(BIGNUM **out, const char *in) |
91 | { | |
92 | *out = NULL; | |
93 | return BN_dec2bn(out, in); | |
94 | } | |
96a4c31b | 95 | |
8d1ebff4 RS |
96 | static BIGNUM *getBN(STANZA *s, const char *attribute) |
97 | { | |
98 | const char *hex; | |
99 | BIGNUM *ret = NULL; | |
8ff70f33 | 100 | |
8d1ebff4 | 101 | if ((hex = findattr(s, attribute)) == NULL) { |
ae269dd8 | 102 | TEST_error("%s:%d: Can't find %s", s->test_file, s->start, attribute); |
8d1ebff4 RS |
103 | return NULL; |
104 | } | |
0f113f3e | 105 | |
8d1ebff4 | 106 | if (parseBN(&ret, hex) != (int)strlen(hex)) { |
30bea14b | 107 | TEST_error("Could not decode '%s'", hex); |
8d1ebff4 RS |
108 | return NULL; |
109 | } | |
110 | return ret; | |
111 | } | |
0f113f3e | 112 | |
8d1ebff4 RS |
113 | static int getint(STANZA *s, int *out, const char *attribute) |
114 | { | |
30bea14b | 115 | BIGNUM *ret; |
8d1ebff4 RS |
116 | BN_ULONG word; |
117 | int st = 0; | |
0f113f3e | 118 | |
30bea14b RS |
119 | if (!TEST_ptr(ret = getBN(s, attribute)) |
120 | || !TEST_ulong_le(word = BN_get_word(ret), INT_MAX)) | |
0f113f3e | 121 | goto err; |
0f113f3e | 122 | |
8d1ebff4 RS |
123 | *out = (int)word; |
124 | st = 1; | |
fe16ae5f | 125 | err: |
8d1ebff4 RS |
126 | BN_free(ret); |
127 | return st; | |
128 | } | |
0f113f3e | 129 | |
8d1ebff4 RS |
130 | static int equalBN(const char *op, const BIGNUM *expected, const BIGNUM *actual) |
131 | { | |
8d1ebff4 RS |
132 | if (BN_cmp(expected, actual) == 0) |
133 | return 1; | |
0f113f3e | 134 | |
dc352c19 P |
135 | TEST_error("unexpected %s value", op); |
136 | TEST_BN_eq(expected, actual); | |
8d1ebff4 | 137 | return 0; |
0f113f3e | 138 | } |
d02b48c6 | 139 | |
8d1ebff4 RS |
140 | /* |
141 | * Return a "random" flag for if a BN should be negated. | |
142 | */ | |
143 | static int rand_neg(void) | |
144 | { | |
145 | static unsigned int neg = 0; | |
146 | static int sign[8] = { 0, 0, 0, 1, 1, 0, 1, 1 }; | |
0f113f3e | 147 | |
8d1ebff4 | 148 | return sign[(neg++) % 8]; |
0f113f3e | 149 | } |
d02b48c6 | 150 | |
9e5b50b5 BB |
151 | static int test_swap(void) |
152 | { | |
153 | BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL; | |
154 | int top, cond, st = 0; | |
155 | ||
156 | if (!TEST_ptr(a = BN_new()) | |
157 | || !TEST_ptr(b = BN_new()) | |
158 | || !TEST_ptr(c = BN_new()) | |
159 | || !TEST_ptr(d = BN_new())) | |
160 | goto err; | |
161 | ||
e2f50811 SL |
162 | if (!(TEST_true(BN_bntest_rand(a, 1024, 1, 0)) |
163 | && TEST_true(BN_bntest_rand(b, 1024, 1, 0)) | |
164 | && TEST_ptr(BN_copy(c, a)) | |
165 | && TEST_ptr(BN_copy(d, b)))) | |
166 | goto err; | |
fe16ae5f | 167 | top = BN_num_bits(a) / BN_BITS2; |
9e5b50b5 BB |
168 | |
169 | /* regular swap */ | |
170 | BN_swap(a, b); | |
171 | if (!equalBN("swap", a, d) | |
172 | || !equalBN("swap", b, c)) | |
173 | goto err; | |
174 | ||
a644cb7c BB |
175 | /* regular swap: same pointer */ |
176 | BN_swap(a, a); | |
177 | if (!equalBN("swap with same pointer", a, d)) | |
178 | goto err; | |
179 | ||
9e5b50b5 BB |
180 | /* conditional swap: true */ |
181 | cond = 1; | |
182 | BN_consttime_swap(cond, a, b, top); | |
183 | if (!equalBN("cswap true", a, c) | |
184 | || !equalBN("cswap true", b, d)) | |
185 | goto err; | |
186 | ||
a644cb7c BB |
187 | /* conditional swap: true, same pointer */ |
188 | BN_consttime_swap(cond, a, a, top); | |
189 | if (!equalBN("cswap true", a, c)) | |
190 | goto err; | |
191 | ||
9e5b50b5 BB |
192 | /* conditional swap: false */ |
193 | cond = 0; | |
194 | BN_consttime_swap(cond, a, b, top); | |
195 | if (!equalBN("cswap false", a, c) | |
196 | || !equalBN("cswap false", b, d)) | |
197 | goto err; | |
198 | ||
a644cb7c BB |
199 | /* conditional swap: false, same pointer */ |
200 | BN_consttime_swap(cond, a, a, top); | |
201 | if (!equalBN("cswap false", a, c)) | |
202 | goto err; | |
203 | ||
9e5b50b5 BB |
204 | /* same tests but checking flag swap */ |
205 | BN_set_flags(a, BN_FLG_CONSTTIME); | |
206 | ||
207 | BN_swap(a, b); | |
208 | if (!equalBN("swap, flags", a, d) | |
209 | || !equalBN("swap, flags", b, c) | |
210 | || !TEST_true(BN_get_flags(b, BN_FLG_CONSTTIME)) | |
211 | || !TEST_false(BN_get_flags(a, BN_FLG_CONSTTIME))) | |
212 | goto err; | |
213 | ||
214 | cond = 1; | |
215 | BN_consttime_swap(cond, a, b, top); | |
216 | if (!equalBN("cswap true, flags", a, c) | |
217 | || !equalBN("cswap true, flags", b, d) | |
218 | || !TEST_true(BN_get_flags(a, BN_FLG_CONSTTIME)) | |
219 | || !TEST_false(BN_get_flags(b, BN_FLG_CONSTTIME))) | |
220 | goto err; | |
221 | ||
222 | cond = 0; | |
223 | BN_consttime_swap(cond, a, b, top); | |
224 | if (!equalBN("cswap false, flags", a, c) | |
225 | || !equalBN("cswap false, flags", b, d) | |
226 | || !TEST_true(BN_get_flags(a, BN_FLG_CONSTTIME)) | |
227 | || !TEST_false(BN_get_flags(b, BN_FLG_CONSTTIME))) | |
228 | goto err; | |
229 | ||
230 | st = 1; | |
231 | err: | |
232 | BN_free(a); | |
233 | BN_free(b); | |
234 | BN_free(c); | |
235 | BN_free(d); | |
236 | return st; | |
237 | } | |
238 | ||
31a80694 | 239 | static int test_sub(void) |
0f113f3e | 240 | { |
30bea14b RS |
241 | BIGNUM *a = NULL, *b = NULL, *c = NULL; |
242 | int i, st = 0; | |
0f113f3e | 243 | |
30bea14b RS |
244 | if (!TEST_ptr(a = BN_new()) |
245 | || !TEST_ptr(b = BN_new()) | |
246 | || !TEST_ptr(c = BN_new())) | |
247 | goto err; | |
0f113f3e | 248 | |
8d1ebff4 RS |
249 | for (i = 0; i < NUM0 + NUM1; i++) { |
250 | if (i < NUM1) { | |
e2f50811 SL |
251 | if (!(TEST_true(BN_bntest_rand(a, 512, 0, 0))) |
252 | && TEST_ptr(BN_copy(b, a)) | |
253 | && TEST_int_ne(BN_set_bit(a, i), 0) | |
254 | && TEST_true(BN_add_word(b, i))) | |
30bea14b | 255 | goto err; |
0f113f3e | 256 | } else { |
e2f50811 SL |
257 | if (!TEST_true(BN_bntest_rand(b, 400 + i - NUM1, 0, 0))) |
258 | goto err; | |
2b1aa198 RL |
259 | BN_set_negative(a, rand_neg()); |
260 | BN_set_negative(b, rand_neg()); | |
0f113f3e | 261 | } |
e2f50811 SL |
262 | if (!(TEST_true(BN_sub(c, a, b)) |
263 | && TEST_true(BN_add(c, c, b)) | |
264 | && TEST_true(BN_sub(c, c, a)) | |
265 | && TEST_BN_eq_zero(c))) | |
30bea14b | 266 | goto err; |
0f113f3e | 267 | } |
30bea14b | 268 | st = 1; |
fe16ae5f | 269 | err: |
0f113f3e MC |
270 | BN_free(a); |
271 | BN_free(b); | |
272 | BN_free(c); | |
30bea14b | 273 | return st; |
0f113f3e | 274 | } |
8169dd73 | 275 | |
31a80694 | 276 | static int test_div_recip(void) |
0f113f3e | 277 | { |
30bea14b RS |
278 | BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL, *e = NULL; |
279 | BN_RECP_CTX *recp = NULL; | |
280 | int st = 0, i; | |
0f113f3e | 281 | |
30bea14b RS |
282 | if (!TEST_ptr(a = BN_new()) |
283 | || !TEST_ptr(b = BN_new()) | |
284 | || !TEST_ptr(c = BN_new()) | |
285 | || !TEST_ptr(d = BN_new()) | |
286 | || !TEST_ptr(e = BN_new()) | |
287 | || !TEST_ptr(recp = BN_RECP_CTX_new())) | |
288 | goto err; | |
0f113f3e | 289 | |
8d1ebff4 RS |
290 | for (i = 0; i < NUM0 + NUM1; i++) { |
291 | if (i < NUM1) { | |
e2f50811 SL |
292 | if (!(TEST_true(BN_bntest_rand(a, 400, 0, 0)) |
293 | && TEST_ptr(BN_copy(b, a)) | |
294 | && TEST_true(BN_lshift(a, a, i)) | |
295 | && TEST_true(BN_add_word(a, i)))) | |
296 | goto err; | |
297 | } else { | |
298 | if (!(TEST_true(BN_bntest_rand(b, 50 + 3 * (i - NUM1), 0, 0)))) | |
299 | goto err; | |
300 | } | |
2b1aa198 RL |
301 | BN_set_negative(a, rand_neg()); |
302 | BN_set_negative(b, rand_neg()); | |
e2f50811 SL |
303 | if (!(TEST_true(BN_RECP_CTX_set(recp, b, ctx)) |
304 | && TEST_true(BN_div_recp(d, c, a, recp, ctx)) | |
305 | && TEST_true(BN_mul(e, d, b, ctx)) | |
306 | && TEST_true(BN_add(d, e, c)) | |
307 | && TEST_true(BN_sub(d, d, a)) | |
308 | && TEST_BN_eq_zero(d))) | |
30bea14b | 309 | goto err; |
0f113f3e | 310 | } |
30bea14b | 311 | st = 1; |
fe16ae5f | 312 | err: |
0f113f3e MC |
313 | BN_free(a); |
314 | BN_free(b); | |
315 | BN_free(c); | |
316 | BN_free(d); | |
317 | BN_free(e); | |
318 | BN_RECP_CTX_free(recp); | |
30bea14b | 319 | return st; |
0f113f3e | 320 | } |
d02b48c6 | 321 | |
105c8315 P |
322 | static struct { |
323 | int n, divisor, result, remainder; | |
324 | } signed_mod_tests[] = { | |
325 | { 10, 3, 3, 1 }, | |
326 | { -10, 3, -3, -1 }, | |
327 | { 10, -3, -3, 1 }, | |
328 | { -10, -3, 3, -1 }, | |
329 | }; | |
330 | ||
331 | static BIGNUM *set_signed_bn(int value) | |
332 | { | |
333 | BIGNUM *bn = BN_new(); | |
334 | ||
335 | if (bn == NULL) | |
336 | return NULL; | |
337 | if (!BN_set_word(bn, value < 0 ? -value : value)) { | |
338 | BN_free(bn); | |
339 | return NULL; | |
340 | } | |
341 | BN_set_negative(bn, value < 0); | |
342 | return bn; | |
343 | } | |
344 | ||
345 | static int test_signed_mod_replace_ab(int n) | |
346 | { | |
347 | BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL; | |
348 | int st = 0; | |
349 | ||
350 | if (!TEST_ptr(a = set_signed_bn(signed_mod_tests[n].n)) | |
351 | || !TEST_ptr(b = set_signed_bn(signed_mod_tests[n].divisor)) | |
352 | || !TEST_ptr(c = set_signed_bn(signed_mod_tests[n].result)) | |
353 | || !TEST_ptr(d = set_signed_bn(signed_mod_tests[n].remainder))) | |
354 | goto err; | |
355 | ||
356 | if (TEST_true(BN_div(a, b, a, b, ctx)) | |
357 | && TEST_BN_eq(a, c) | |
358 | && TEST_BN_eq(b, d)) | |
359 | st = 1; | |
360 | err: | |
361 | BN_free(a); | |
362 | BN_free(b); | |
363 | BN_free(c); | |
364 | BN_free(d); | |
365 | return st; | |
366 | } | |
367 | ||
368 | static int test_signed_mod_replace_ba(int n) | |
369 | { | |
370 | BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL; | |
371 | int st = 0; | |
372 | ||
373 | if (!TEST_ptr(a = set_signed_bn(signed_mod_tests[n].n)) | |
374 | || !TEST_ptr(b = set_signed_bn(signed_mod_tests[n].divisor)) | |
375 | || !TEST_ptr(c = set_signed_bn(signed_mod_tests[n].result)) | |
376 | || !TEST_ptr(d = set_signed_bn(signed_mod_tests[n].remainder))) | |
377 | goto err; | |
378 | ||
379 | if (TEST_true(BN_div(b, a, a, b, ctx)) | |
380 | && TEST_BN_eq(b, c) | |
381 | && TEST_BN_eq(a, d)) | |
382 | st = 1; | |
383 | err: | |
384 | BN_free(a); | |
385 | BN_free(b); | |
386 | BN_free(c); | |
387 | BN_free(d); | |
388 | return st; | |
389 | } | |
390 | ||
31a80694 | 391 | static int test_mod(void) |
0f113f3e | 392 | { |
30bea14b RS |
393 | BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL, *e = NULL; |
394 | int st = 0, i; | |
0f113f3e | 395 | |
30bea14b RS |
396 | if (!TEST_ptr(a = BN_new()) |
397 | || !TEST_ptr(b = BN_new()) | |
398 | || !TEST_ptr(c = BN_new()) | |
399 | || !TEST_ptr(d = BN_new()) | |
400 | || !TEST_ptr(e = BN_new())) | |
401 | goto err; | |
0f113f3e | 402 | |
e2f50811 SL |
403 | if (!(TEST_true(BN_bntest_rand(a, 1024, 0, 0)))) |
404 | goto err; | |
8d1ebff4 | 405 | for (i = 0; i < NUM0; i++) { |
e2f50811 SL |
406 | if (!(TEST_true(BN_bntest_rand(b, 450 + i * 10, 0, 0)))) |
407 | goto err; | |
2b1aa198 RL |
408 | BN_set_negative(a, rand_neg()); |
409 | BN_set_negative(b, rand_neg()); | |
e2f50811 SL |
410 | if (!(TEST_true(BN_mod(c, a, b, ctx)) |
411 | && TEST_true(BN_div(d, e, a, b, ctx)) | |
105c8315 P |
412 | && TEST_BN_eq(e, c) |
413 | && TEST_true(BN_mul(c, d, b, ctx)) | |
414 | && TEST_true(BN_add(d, c, e)) | |
415 | && TEST_BN_eq(d, a))) | |
30bea14b | 416 | goto err; |
0f113f3e | 417 | } |
30bea14b | 418 | st = 1; |
fe16ae5f | 419 | err: |
0f113f3e MC |
420 | BN_free(a); |
421 | BN_free(b); | |
422 | BN_free(c); | |
423 | BN_free(d); | |
424 | BN_free(e); | |
30bea14b | 425 | return st; |
0f113f3e | 426 | } |
d02b48c6 | 427 | |
26a39fa9 RS |
428 | static const char *bn1strings[] = { |
429 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
430 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
431 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
432 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
433 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
434 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
435 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
436 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000000000FFFFFFFF00", | |
437 | "0000000000000000000000000000000000000000000000000000000000000000", | |
438 | "0000000000000000000000000000000000000000000000000000000000000000", | |
439 | "0000000000000000000000000000000000000000000000000000000000000000", | |
440 | "0000000000000000000000000000000000000000000000000000000000000000", | |
441 | "0000000000000000000000000000000000000000000000000000000000000000", | |
442 | "0000000000000000000000000000000000000000000000000000000000000000", | |
443 | "0000000000000000000000000000000000000000000000000000000000000000", | |
444 | "00000000000000000000000000000000000000000000000000FFFFFFFFFFFFFF", | |
445 | NULL | |
446 | }; | |
447 | ||
448 | static const char *bn2strings[] = { | |
449 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
450 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
451 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
452 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
453 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
454 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
455 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
456 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000000000FFFFFFFF0000000000", | |
457 | "0000000000000000000000000000000000000000000000000000000000000000", | |
458 | "0000000000000000000000000000000000000000000000000000000000000000", | |
459 | "0000000000000000000000000000000000000000000000000000000000000000", | |
460 | "0000000000000000000000000000000000000000000000000000000000000000", | |
461 | "0000000000000000000000000000000000000000000000000000000000000000", | |
462 | "0000000000000000000000000000000000000000000000000000000000000000", | |
463 | "0000000000000000000000000000000000000000000000000000000000000000", | |
464 | "000000000000000000000000000000000000000000FFFFFFFFFFFFFF00000000", | |
465 | NULL | |
466 | }; | |
467 | ||
8d1ebff4 RS |
468 | /* |
469 | * Test constant-time modular exponentiation with 1024-bit inputs, which on | |
470 | * x86_64 cause a different code branch to be taken. | |
471 | */ | |
31a80694 | 472 | static int test_modexp_mont5(void) |
0f113f3e | 473 | { |
30bea14b RS |
474 | BIGNUM *a = NULL, *p = NULL, *m = NULL, *d = NULL, *e = NULL; |
475 | BIGNUM *b = NULL, *n = NULL, *c = NULL; | |
476 | BN_MONT_CTX *mont = NULL; | |
30bea14b | 477 | int st = 0; |
0f113f3e | 478 | |
30bea14b RS |
479 | if (!TEST_ptr(a = BN_new()) |
480 | || !TEST_ptr(p = BN_new()) | |
481 | || !TEST_ptr(m = BN_new()) | |
482 | || !TEST_ptr(d = BN_new()) | |
483 | || !TEST_ptr(e = BN_new()) | |
484 | || !TEST_ptr(b = BN_new()) | |
485 | || !TEST_ptr(n = BN_new()) | |
486 | || !TEST_ptr(c = BN_new()) | |
487 | || !TEST_ptr(mont = BN_MONT_CTX_new())) | |
488 | goto err; | |
0f113f3e | 489 | |
e2f50811 SL |
490 | /* must be odd for montgomery */ |
491 | if (!(TEST_true(BN_bntest_rand(m, 1024, 0, 1)) | |
492 | /* Zero exponent */ | |
493 | && TEST_true(BN_bntest_rand(a, 1024, 0, 0)))) | |
494 | goto err; | |
8d1ebff4 | 495 | BN_zero(p); |
e2f50811 | 496 | |
30bea14b RS |
497 | if (!TEST_true(BN_mod_exp_mont_consttime(d, a, p, m, ctx, NULL))) |
498 | goto err; | |
dc352c19 | 499 | if (!TEST_BN_eq_one(d)) |
30bea14b | 500 | goto err; |
0f113f3e | 501 | |
8d1ebff4 | 502 | /* Regression test for carry bug in mulx4x_mont */ |
e2f50811 | 503 | if (!(TEST_true(BN_hex2bn(&a, |
8d1ebff4 RS |
504 | "7878787878787878787878787878787878787878787878787878787878787878" |
505 | "7878787878787878787878787878787878787878787878787878787878787878" | |
506 | "7878787878787878787878787878787878787878787878787878787878787878" | |
e2f50811 SL |
507 | "7878787878787878787878787878787878787878787878787878787878787878")) |
508 | && TEST_true(BN_hex2bn(&b, | |
8d1ebff4 RS |
509 | "095D72C08C097BA488C5E439C655A192EAFB6380073D8C2664668EDDB4060744" |
510 | "E16E57FB4EDB9AE10A0CEFCDC28A894F689A128379DB279D48A2E20849D68593" | |
511 | "9B7803BCF46CEBF5C533FB0DD35B080593DE5472E3FE5DB951B8BFF9B4CB8F03" | |
e2f50811 SL |
512 | "9CC638A5EE8CDD703719F8000E6A9F63BEED5F2FCD52FF293EA05A251BB4AB81")) |
513 | && TEST_true(BN_hex2bn(&n, | |
8d1ebff4 RS |
514 | "D78AF684E71DB0C39CFF4E64FB9DB567132CB9C50CC98009FEB820B26F2DED9B" |
515 | "91B9B5E2B83AE0AE4EB4E0523CA726BFBE969B89FD754F674CE99118C3F2D1C5" | |
516 | "D81FDC7C54E02B60262B241D53C040E99E45826ECA37A804668E690E1AFC1CA4" | |
e2f50811 SL |
517 | "2C9A15D84D4954425F0B7642FC0BD9D7B24E2618D2DCC9B729D944BADACFDDAF")))) |
518 | goto err; | |
519 | ||
520 | if (!(TEST_true(BN_MONT_CTX_set(mont, n, ctx)) | |
521 | && TEST_true(BN_mod_mul_montgomery(c, a, b, mont, ctx)) | |
522 | && TEST_true(BN_mod_mul_montgomery(d, b, a, mont, ctx)) | |
523 | && TEST_BN_eq(c, d))) | |
30bea14b | 524 | goto err; |
0f113f3e | 525 | |
3e7a4963 | 526 | /* Regression test for carry bug in sqr[x]8x_mont */ |
e2f50811 SL |
527 | if (!(TEST_true(parse_bigBN(&n, bn1strings)) |
528 | && TEST_true(parse_bigBN(&a, bn2strings)))) | |
529 | goto err; | |
26a39fa9 | 530 | BN_free(b); |
e2f50811 SL |
531 | if (!(TEST_ptr(b = BN_dup(a)) |
532 | && TEST_true(BN_MONT_CTX_set(mont, n, ctx)) | |
533 | && TEST_true(BN_mod_mul_montgomery(c, a, a, mont, ctx)) | |
534 | && TEST_true(BN_mod_mul_montgomery(d, a, b, mont, ctx)) | |
535 | && TEST_BN_eq(c, d))) | |
30bea14b | 536 | goto err; |
3e7a4963 | 537 | |
420b88ce AP |
538 | /* Regression test for carry bug in bn_sqrx8x_internal */ |
539 | { | |
540 | static const char *ahex[] = { | |
541 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
542 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
543 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
544 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
545 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF8FFEADBCFC4DAE7FFF908E92820306B", | |
546 | "9544D954000000006C0000000000000000000000000000000000000000000000", | |
547 | "00000000000000000000FF030202FFFFF8FFEBDBCFC4DAE7FFF908E92820306B", | |
548 | "9544D954000000006C000000FF0302030000000000FFFFFFFFFFFFFFFFFFFFFF", | |
549 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF01FC00FF02FFFFFFFF", | |
550 | "00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00FCFD", | |
551 | "FCFFFFFFFFFF000000000000000000FF0302030000000000FFFFFFFFFFFFFFFF", | |
552 | "FF00FCFDFDFF030202FF00000000FFFFFFFFFFFFFFFFFF00FCFDFCFFFFFFFFFF", | |
553 | NULL | |
4483fbae | 554 | }; |
420b88ce AP |
555 | static const char *nhex[] = { |
556 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
557 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
558 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
559 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
560 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF8F8F8F8000000", | |
561 | "00000010000000006C0000000000000000000000000000000000000000000000", | |
562 | "00000000000000000000000000000000000000FFFFFFFFFFFFF8F8F8F8000000", | |
563 | "00000010000000006C000000000000000000000000FFFFFFFFFFFFFFFFFFFFFF", | |
564 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
565 | "00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
566 | "FFFFFFFFFFFF000000000000000000000000000000000000FFFFFFFFFFFFFFFF", | |
567 | "FFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", | |
568 | NULL | |
4483fbae F |
569 | }; |
570 | ||
e2f50811 SL |
571 | if (!(TEST_true(parse_bigBN(&a, ahex)) |
572 | && TEST_true(parse_bigBN(&n, nhex)))) | |
573 | goto err; | |
420b88ce AP |
574 | } |
575 | BN_free(b); | |
e2f50811 SL |
576 | if (!(TEST_ptr(b = BN_dup(a)) |
577 | && TEST_true(BN_MONT_CTX_set(mont, n, ctx)))) | |
578 | goto err; | |
579 | ||
f91e026e BE |
580 | if (!TEST_true(BN_mod_mul_montgomery(c, a, a, mont, ctx)) |
581 | || !TEST_true(BN_mod_mul_montgomery(d, a, b, mont, ctx)) | |
582 | || !TEST_BN_eq(c, d)) | |
583 | goto err; | |
584 | ||
585 | /* Regression test for bug in BN_from_montgomery_word */ | |
e2f50811 | 586 | if (!(TEST_true(BN_hex2bn(&a, |
f91e026e BE |
587 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" |
588 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
e2f50811 SL |
589 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF")) |
590 | && TEST_true(BN_hex2bn(&n, | |
f91e026e | 591 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" |
e2f50811 SL |
592 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF")) |
593 | && TEST_true(BN_MONT_CTX_set(mont, n, ctx)) | |
594 | && TEST_false(BN_mod_mul_montgomery(d, a, a, mont, ctx)))) | |
420b88ce AP |
595 | goto err; |
596 | ||
77d75993 | 597 | /* Regression test for bug in rsaz_1024_mul_avx2 */ |
e2f50811 | 598 | if (!(TEST_true(BN_hex2bn(&a, |
77d75993 AP |
599 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" |
600 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
601 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
e2f50811 SL |
602 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF2020202020DF")) |
603 | && TEST_true(BN_hex2bn(&b, | |
77d75993 AP |
604 | "2020202020202020202020202020202020202020202020202020202020202020" |
605 | "2020202020202020202020202020202020202020202020202020202020202020" | |
606 | "20202020202020FF202020202020202020202020202020202020202020202020" | |
e2f50811 SL |
607 | "2020202020202020202020202020202020202020202020202020202020202020")) |
608 | && TEST_true(BN_hex2bn(&n, | |
77d75993 AP |
609 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" |
610 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
611 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
e2f50811 SL |
612 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF2020202020FF")) |
613 | && TEST_true(BN_MONT_CTX_set(mont, n, ctx)) | |
614 | && TEST_true(BN_mod_exp_mont_consttime(c, a, b, n, ctx, mont)) | |
615 | && TEST_true(BN_mod_exp_mont(d, a, b, n, ctx, mont)) | |
616 | && TEST_BN_eq(c, d))) | |
77d75993 AP |
617 | goto err; |
618 | ||
3afd537a DB |
619 | /* |
620 | * rsaz_1024_mul_avx2 expects fully-reduced inputs. | |
621 | * BN_mod_exp_mont_consttime should reduce the input first. | |
622 | */ | |
e2f50811 | 623 | if (!(TEST_true(BN_hex2bn(&a, |
3afd537a DB |
624 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" |
625 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
626 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
e2f50811 SL |
627 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF2020202020DF")) |
628 | && TEST_true(BN_hex2bn(&b, | |
3afd537a DB |
629 | "1FA53F26F8811C58BE0357897AA5E165693230BC9DF5F01DFA6A2D59229EC69D" |
630 | "9DE6A89C36E3B6957B22D6FAAD5A3C73AE587B710DBE92E83D3A9A3339A085CB" | |
631 | "B58F508CA4F837924BB52CC1698B7FDC2FD74362456A595A5B58E38E38E38E38" | |
e2f50811 SL |
632 | "E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E38E")) |
633 | && TEST_true(BN_hex2bn(&n, | |
3afd537a DB |
634 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" |
635 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
636 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" | |
e2f50811 SL |
637 | "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF2020202020DF")) |
638 | && TEST_true(BN_MONT_CTX_set(mont, n, ctx)) | |
639 | && TEST_true(BN_mod_exp_mont_consttime(c, a, b, n, ctx, mont)))) | |
640 | goto err; | |
3afd537a DB |
641 | BN_zero(d); |
642 | if (!TEST_BN_eq(c, d)) | |
643 | goto err; | |
644 | ||
336923c0 BE |
645 | /* |
646 | * Regression test for overflow bug in bn_sqr_comba4/8 for | |
647 | * mips-linux-gnu and mipsel-linux-gnu 32bit targets. | |
648 | */ | |
649 | { | |
650 | static const char *ehex[] = { | |
651 | "95564994a96c45954227b845a1e99cb939d5a1da99ee91acc962396ae999a9ee", | |
652 | "38603790448f2f7694c242a875f0cad0aae658eba085f312d2febbbd128dd2b5", | |
653 | "8f7d1149f03724215d704344d0d62c587ae3c5939cba4b9b5f3dc5e8e911ef9a", | |
654 | "5ce1a5a749a4989d0d8368f6e1f8cdf3a362a6c97fb02047ff152b480a4ad985", | |
655 | "2d45efdf0770542992afca6a0590d52930434bba96017afbc9f99e112950a8b1", | |
656 | "a359473ec376f329bdae6a19f503be6d4be7393c4e43468831234e27e3838680", | |
657 | "b949390d2e416a3f9759e5349ab4c253f6f29f819a6fe4cbfd27ada34903300e", | |
658 | "da021f62839f5878a36f1bc3085375b00fd5fa3e68d316c0fdace87a97558465", | |
659 | NULL}; | |
660 | static const char *phex[] = { | |
661 | "f95dc0f980fbd22e90caa5a387cc4a369f3f830d50dd321c40db8c09a7e1a241", | |
662 | "a536e096622d3280c0c1ba849c1f4a79bf490f60006d081e8cf69960189f0d31", | |
663 | "2cd9e17073a3fba7881b21474a13b334116cb2f5dbf3189a6de3515d0840f053", | |
664 | "c776d3982d391b6d04d642dda5cc6d1640174c09875addb70595658f89efb439", | |
665 | "dc6fbd55f903aadd307982d3f659207f265e1ec6271b274521b7a5e28e8fd7a5", | |
666 | "5df089292820477802a43cf5b6b94e999e8c9944ddebb0d0e95a60f88cb7e813", | |
667 | "ba110d20e1024774107dd02949031864923b3cb8c3f7250d6d1287b0a40db6a4", | |
668 | "7bd5a469518eb65aa207ddc47d8c6e5fc8e0c105be8fc1d4b57b2e27540471d5", | |
669 | NULL}; | |
670 | static const char *mhex[] = { | |
671 | "fef15d5ce4625f1bccfbba49fc8439c72bf8202af039a2259678941b60bb4a8f", | |
672 | "2987e965d58fd8cf86a856674d519763d0e1211cc9f8596971050d56d9b35db3", | |
673 | "785866cfbca17cfdbed6060be3629d894f924a89fdc1efc624f80d41a22f1900", | |
674 | "9503fcc3824ef62ccb9208430c26f2d8ceb2c63488ec4c07437aa4c96c43dd8b", | |
675 | "9289ed00a712ff66ee195dc71f5e4ead02172b63c543d69baf495f5fd63ba7bc", | |
676 | "c633bd309c016e37736da92129d0b053d4ab28d21ad7d8b6fab2a8bbdc8ee647", | |
677 | "d2fbcf2cf426cf892e6f5639e0252993965dfb73ccd277407014ea784aaa280c", | |
678 | "b7b03972bc8b0baa72360bdb44b82415b86b2f260f877791cd33ba8f2d65229b", | |
679 | NULL}; | |
680 | ||
681 | if (!TEST_true(parse_bigBN(&e, ehex)) | |
682 | || !TEST_true(parse_bigBN(&p, phex)) | |
683 | || !TEST_true(parse_bigBN(&m, mhex)) | |
684 | || !TEST_true(BN_mod_exp_mont_consttime(d, e, p, m, ctx, NULL)) | |
685 | || !TEST_true(BN_mod_exp_simple(a, e, p, m, ctx)) | |
686 | || !TEST_BN_eq(a, d)) | |
687 | goto err; | |
688 | } | |
689 | ||
8d1ebff4 | 690 | /* Zero input */ |
e2f50811 SL |
691 | if (!TEST_true(BN_bntest_rand(p, 1024, 0, 0))) |
692 | goto err; | |
8d1ebff4 | 693 | BN_zero(a); |
30bea14b | 694 | if (!TEST_true(BN_mod_exp_mont_consttime(d, a, p, m, ctx, NULL)) |
dc352c19 | 695 | || !TEST_BN_eq_zero(d)) |
30bea14b RS |
696 | goto err; |
697 | ||
8d1ebff4 RS |
698 | /* |
699 | * Craft an input whose Montgomery representation is 1, i.e., shorter | |
700 | * than the modulus m, in order to test the const time precomputation | |
701 | * scattering/gathering. | |
702 | */ | |
e2f50811 SL |
703 | if (!(TEST_true(BN_one(a)) |
704 | && TEST_true(BN_MONT_CTX_set(mont, m, ctx)))) | |
705 | goto err; | |
30bea14b RS |
706 | if (!TEST_true(BN_from_montgomery(e, a, mont, ctx)) |
707 | || !TEST_true(BN_mod_exp_mont_consttime(d, e, p, m, ctx, NULL)) | |
708 | || !TEST_true(BN_mod_exp_simple(a, e, p, m, ctx)) | |
dc352c19 | 709 | || !TEST_BN_eq(a, d)) |
30bea14b RS |
710 | goto err; |
711 | ||
8d1ebff4 | 712 | /* Finally, some regular test vectors. */ |
e2f50811 SL |
713 | if (!(TEST_true(BN_bntest_rand(e, 1024, 0, 0)) |
714 | && TEST_true(BN_mod_exp_mont_consttime(d, e, p, m, ctx, NULL)) | |
715 | && TEST_true(BN_mod_exp_simple(a, e, p, m, ctx)) | |
716 | && TEST_BN_eq(a, d))) | |
30bea14b RS |
717 | goto err; |
718 | ||
719 | st = 1; | |
720 | ||
fe16ae5f | 721 | err: |
0f113f3e MC |
722 | BN_MONT_CTX_free(mont); |
723 | BN_free(a); | |
8d1ebff4 RS |
724 | BN_free(p); |
725 | BN_free(m); | |
0f113f3e | 726 | BN_free(d); |
8d1ebff4 RS |
727 | BN_free(e); |
728 | BN_free(b); | |
0f113f3e | 729 | BN_free(n); |
8d1ebff4 | 730 | BN_free(c); |
30bea14b | 731 | return st; |
0f113f3e | 732 | } |
d02b48c6 | 733 | |
8d1ebff4 | 734 | #ifndef OPENSSL_NO_EC2M |
31a80694 | 735 | static int test_gf2m_add(void) |
0f113f3e | 736 | { |
30bea14b | 737 | BIGNUM *a = NULL, *b = NULL, *c = NULL; |
8d1ebff4 | 738 | int i, st = 0; |
0f113f3e | 739 | |
30bea14b RS |
740 | if (!TEST_ptr(a = BN_new()) |
741 | || !TEST_ptr(b = BN_new()) | |
742 | || !TEST_ptr(c = BN_new())) | |
743 | goto err; | |
0f113f3e | 744 | |
8d1ebff4 | 745 | for (i = 0; i < NUM0; i++) { |
e2f50811 SL |
746 | if (!(TEST_true(BN_rand(a, 512, 0, 0)) |
747 | && TEST_ptr(BN_copy(b, BN_value_one())))) | |
748 | goto err; | |
2b1aa198 RL |
749 | BN_set_negative(a, rand_neg()); |
750 | BN_set_negative(b, rand_neg()); | |
e2f50811 SL |
751 | if (!(TEST_true(BN_GF2m_add(c, a, b)) |
752 | /* Test that two added values have the correct parity. */ | |
753 | && TEST_false((BN_is_odd(a) && BN_is_odd(c)) | |
754 | || (!BN_is_odd(a) && !BN_is_odd(c))))) | |
8d1ebff4 | 755 | goto err; |
e2f50811 SL |
756 | if (!(TEST_true(BN_GF2m_add(c, c, c)) |
757 | /* Test that c + c = 0. */ | |
758 | && TEST_BN_eq_zero(c))) | |
8d1ebff4 | 759 | goto err; |
0f113f3e | 760 | } |
8d1ebff4 RS |
761 | st = 1; |
762 | err: | |
0f113f3e MC |
763 | BN_free(a); |
764 | BN_free(b); | |
765 | BN_free(c); | |
8d1ebff4 | 766 | return st; |
0f113f3e | 767 | } |
d02b48c6 | 768 | |
31a80694 | 769 | static int test_gf2m_mod(void) |
0f113f3e | 770 | { |
1287dabd | 771 | BIGNUM *a = NULL, *b[2] = {NULL, NULL}, *c = NULL, *d = NULL, *e = NULL; |
8d1ebff4 | 772 | int i, j, st = 0; |
0f113f3e | 773 | |
30bea14b RS |
774 | if (!TEST_ptr(a = BN_new()) |
775 | || !TEST_ptr(b[0] = BN_new()) | |
776 | || !TEST_ptr(b[1] = BN_new()) | |
777 | || !TEST_ptr(c = BN_new()) | |
778 | || !TEST_ptr(d = BN_new()) | |
779 | || !TEST_ptr(e = BN_new())) | |
780 | goto err; | |
0f113f3e | 781 | |
e2f50811 SL |
782 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
783 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
784 | goto err; | |
0f113f3e | 785 | |
8d1ebff4 | 786 | for (i = 0; i < NUM0; i++) { |
e2f50811 SL |
787 | if (!TEST_true(BN_bntest_rand(a, 1024, 0, 0))) |
788 | goto err; | |
8d1ebff4 | 789 | for (j = 0; j < 2; j++) { |
e2f50811 SL |
790 | if (!(TEST_true(BN_GF2m_mod(c, a, b[j])) |
791 | && TEST_true(BN_GF2m_add(d, a, c)) | |
792 | && TEST_true(BN_GF2m_mod(e, d, b[j])) | |
793 | /* Test that a + (a mod p) mod p == 0. */ | |
794 | && TEST_BN_eq_zero(e))) | |
8d1ebff4 | 795 | goto err; |
0f113f3e MC |
796 | } |
797 | } | |
8d1ebff4 RS |
798 | st = 1; |
799 | err: | |
0f113f3e | 800 | BN_free(a); |
8d1ebff4 RS |
801 | BN_free(b[0]); |
802 | BN_free(b[1]); | |
0f113f3e MC |
803 | BN_free(c); |
804 | BN_free(d); | |
805 | BN_free(e); | |
8d1ebff4 | 806 | return st; |
0f113f3e | 807 | } |
d02b48c6 | 808 | |
31a80694 | 809 | static int test_gf2m_mul(void) |
0f113f3e | 810 | { |
30bea14b RS |
811 | BIGNUM *a, *b[2] = {NULL, NULL}, *c = NULL, *d = NULL; |
812 | BIGNUM *e = NULL, *f = NULL, *g = NULL, *h = NULL; | |
8d1ebff4 | 813 | int i, j, st = 0; |
30bea14b RS |
814 | |
815 | if (!TEST_ptr(a = BN_new()) | |
816 | || !TEST_ptr(b[0] = BN_new()) | |
817 | || !TEST_ptr(b[1] = BN_new()) | |
818 | || !TEST_ptr(c = BN_new()) | |
819 | || !TEST_ptr(d = BN_new()) | |
820 | || !TEST_ptr(e = BN_new()) | |
821 | || !TEST_ptr(f = BN_new()) | |
822 | || !TEST_ptr(g = BN_new()) | |
823 | || !TEST_ptr(h = BN_new())) | |
824 | goto err; | |
0f113f3e | 825 | |
e2f50811 SL |
826 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
827 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
828 | goto err; | |
0f113f3e | 829 | |
8d1ebff4 | 830 | for (i = 0; i < NUM0; i++) { |
e2f50811 SL |
831 | if (!(TEST_true(BN_bntest_rand(a, 1024, 0, 0)) |
832 | && TEST_true(BN_bntest_rand(c, 1024, 0, 0)) | |
833 | && TEST_true(BN_bntest_rand(d, 1024, 0, 0)))) | |
834 | goto err; | |
8d1ebff4 | 835 | for (j = 0; j < 2; j++) { |
e2f50811 SL |
836 | if (!(TEST_true(BN_GF2m_mod_mul(e, a, c, b[j], ctx)) |
837 | && TEST_true(BN_GF2m_add(f, a, d)) | |
838 | && TEST_true(BN_GF2m_mod_mul(g, f, c, b[j], ctx)) | |
839 | && TEST_true(BN_GF2m_mod_mul(h, d, c, b[j], ctx)) | |
840 | && TEST_true(BN_GF2m_add(f, e, g)) | |
841 | && TEST_true(BN_GF2m_add(f, f, h)) | |
842 | /* Test that (a+d)*c = a*c + d*c. */ | |
843 | && TEST_BN_eq_zero(f))) | |
8d1ebff4 | 844 | goto err; |
0f113f3e | 845 | } |
29851264 | 846 | } |
8d1ebff4 | 847 | st = 1; |
30bea14b | 848 | |
8d1ebff4 | 849 | err: |
0f113f3e | 850 | BN_free(a); |
8d1ebff4 RS |
851 | BN_free(b[0]); |
852 | BN_free(b[1]); | |
0f113f3e MC |
853 | BN_free(c); |
854 | BN_free(d); | |
855 | BN_free(e); | |
8d1ebff4 RS |
856 | BN_free(f); |
857 | BN_free(g); | |
858 | BN_free(h); | |
859 | return st; | |
0f113f3e | 860 | } |
d02b48c6 | 861 | |
31a80694 | 862 | static int test_gf2m_sqr(void) |
0f113f3e | 863 | { |
1287dabd | 864 | BIGNUM *a = NULL, *b[2] = {NULL, NULL}, *c = NULL, *d = NULL; |
8d1ebff4 | 865 | int i, j, st = 0; |
0f113f3e | 866 | |
30bea14b RS |
867 | if (!TEST_ptr(a = BN_new()) |
868 | || !TEST_ptr(b[0] = BN_new()) | |
869 | || !TEST_ptr(b[1] = BN_new()) | |
870 | || !TEST_ptr(c = BN_new()) | |
871 | || !TEST_ptr(d = BN_new())) | |
872 | goto err; | |
a9009e51 | 873 | |
e2f50811 SL |
874 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
875 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
876 | goto err; | |
0f113f3e | 877 | |
8d1ebff4 | 878 | for (i = 0; i < NUM0; i++) { |
e2f50811 SL |
879 | if (!TEST_true(BN_bntest_rand(a, 1024, 0, 0))) |
880 | goto err; | |
8d1ebff4 | 881 | for (j = 0; j < 2; j++) { |
e2f50811 SL |
882 | if (!(TEST_true(BN_GF2m_mod_sqr(c, a, b[j], ctx)) |
883 | && TEST_true(BN_copy(d, a)) | |
884 | && TEST_true(BN_GF2m_mod_mul(d, a, d, b[j], ctx)) | |
885 | && TEST_true(BN_GF2m_add(d, c, d)) | |
886 | /* Test that a*a = a^2. */ | |
887 | && TEST_BN_eq_zero(d))) | |
8d1ebff4 | 888 | goto err; |
0f113f3e MC |
889 | } |
890 | } | |
8d1ebff4 RS |
891 | st = 1; |
892 | err: | |
0f113f3e | 893 | BN_free(a); |
8d1ebff4 RS |
894 | BN_free(b[0]); |
895 | BN_free(b[1]); | |
0f113f3e MC |
896 | BN_free(c); |
897 | BN_free(d); | |
8d1ebff4 | 898 | return st; |
0f113f3e MC |
899 | } |
900 | ||
31a80694 | 901 | static int test_gf2m_modinv(void) |
0f113f3e | 902 | { |
1287dabd | 903 | BIGNUM *a = NULL, *b[2] = {NULL, NULL}, *c = NULL, *d = 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 | goto err; | |
0f113f3e | 912 | |
b83c719e MC |
913 | /* Test that a non-sensical, too small value causes a failure */ |
914 | if (!TEST_true(BN_one(b[0]))) | |
915 | goto err; | |
916 | if (!TEST_true(BN_bntest_rand(a, 512, 0, 0))) | |
917 | goto err; | |
918 | if (!TEST_false(BN_GF2m_mod_inv(c, a, b[0], ctx))) | |
919 | goto err; | |
920 | ||
e2f50811 SL |
921 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
922 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
923 | goto err; | |
0f113f3e | 924 | |
8d1ebff4 | 925 | for (i = 0; i < NUM0; i++) { |
e2f50811 SL |
926 | if (!TEST_true(BN_bntest_rand(a, 512, 0, 0))) |
927 | goto err; | |
0f113f3e | 928 | for (j = 0; j < 2; j++) { |
e2f50811 SL |
929 | if (!(TEST_true(BN_GF2m_mod_inv(c, a, b[j], ctx)) |
930 | && TEST_true(BN_GF2m_mod_mul(d, a, c, b[j], ctx)) | |
931 | /* Test that ((1/a)*a) = 1. */ | |
932 | && TEST_BN_eq_one(d))) | |
0f113f3e | 933 | goto err; |
0f113f3e MC |
934 | } |
935 | } | |
8d1ebff4 | 936 | st = 1; |
0f113f3e MC |
937 | err: |
938 | BN_free(a); | |
939 | BN_free(b[0]); | |
940 | BN_free(b[1]); | |
941 | BN_free(c); | |
942 | BN_free(d); | |
8d1ebff4 | 943 | return st; |
0f113f3e MC |
944 | } |
945 | ||
31a80694 | 946 | static int test_gf2m_moddiv(void) |
0f113f3e | 947 | { |
1287dabd | 948 | BIGNUM *a = NULL, *b[2] = {NULL, NULL}, *c = NULL, *d = NULL; |
30bea14b | 949 | BIGNUM *e = NULL, *f = NULL; |
8d1ebff4 | 950 | int i, j, st = 0; |
0f113f3e | 951 | |
30bea14b RS |
952 | if (!TEST_ptr(a = BN_new()) |
953 | || !TEST_ptr(b[0] = BN_new()) | |
954 | || !TEST_ptr(b[1] = BN_new()) | |
955 | || !TEST_ptr(c = BN_new()) | |
956 | || !TEST_ptr(d = BN_new()) | |
957 | || !TEST_ptr(e = BN_new()) | |
958 | || !TEST_ptr(f = BN_new())) | |
959 | goto err; | |
0f113f3e | 960 | |
e2f50811 SL |
961 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
962 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
963 | goto err; | |
0f113f3e | 964 | |
8d1ebff4 | 965 | for (i = 0; i < NUM0; i++) { |
e2f50811 SL |
966 | if (!(TEST_true(BN_bntest_rand(a, 512, 0, 0)) |
967 | && TEST_true(BN_bntest_rand(c, 512, 0, 0)))) | |
968 | goto err; | |
0f113f3e | 969 | for (j = 0; j < 2; j++) { |
e2f50811 SL |
970 | if (!(TEST_true(BN_GF2m_mod_div(d, a, c, b[j], ctx)) |
971 | && TEST_true(BN_GF2m_mod_mul(e, d, c, b[j], ctx)) | |
972 | && TEST_true(BN_GF2m_mod_div(f, a, e, b[j], ctx)) | |
973 | /* Test that ((a/c)*c)/a = 1. */ | |
974 | && TEST_BN_eq_one(f))) | |
0f113f3e | 975 | goto err; |
0f113f3e MC |
976 | } |
977 | } | |
8d1ebff4 | 978 | st = 1; |
0f113f3e MC |
979 | err: |
980 | BN_free(a); | |
981 | BN_free(b[0]); | |
982 | BN_free(b[1]); | |
983 | BN_free(c); | |
984 | BN_free(d); | |
985 | BN_free(e); | |
986 | BN_free(f); | |
8d1ebff4 | 987 | return st; |
0f113f3e MC |
988 | } |
989 | ||
31a80694 | 990 | static int test_gf2m_modexp(void) |
0f113f3e | 991 | { |
1287dabd | 992 | BIGNUM *a = NULL, *b[2] = {NULL, NULL}, *c = NULL, *d = NULL; |
30bea14b | 993 | BIGNUM *e = NULL, *f = NULL; |
8d1ebff4 | 994 | int i, j, st = 0; |
0f113f3e | 995 | |
30bea14b RS |
996 | if (!TEST_ptr(a = BN_new()) |
997 | || !TEST_ptr(b[0] = BN_new()) | |
998 | || !TEST_ptr(b[1] = BN_new()) | |
999 | || !TEST_ptr(c = BN_new()) | |
1000 | || !TEST_ptr(d = BN_new()) | |
1001 | || !TEST_ptr(e = BN_new()) | |
1002 | || !TEST_ptr(f = BN_new())) | |
1003 | goto err; | |
0f113f3e | 1004 | |
e2f50811 SL |
1005 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
1006 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
1007 | goto err; | |
0f113f3e | 1008 | |
8d1ebff4 | 1009 | for (i = 0; i < NUM0; i++) { |
e2f50811 SL |
1010 | if (!(TEST_true(BN_bntest_rand(a, 512, 0, 0)) |
1011 | && TEST_true(BN_bntest_rand(c, 512, 0, 0)) | |
1012 | && TEST_true(BN_bntest_rand(d, 512, 0, 0)))) | |
1013 | goto err; | |
0f113f3e | 1014 | for (j = 0; j < 2; j++) { |
e2f50811 SL |
1015 | if (!(TEST_true(BN_GF2m_mod_exp(e, a, c, b[j], ctx)) |
1016 | && TEST_true(BN_GF2m_mod_exp(f, a, d, b[j], ctx)) | |
1017 | && TEST_true(BN_GF2m_mod_mul(e, e, f, b[j], ctx)) | |
1018 | && TEST_true(BN_add(f, c, d)) | |
1019 | && TEST_true(BN_GF2m_mod_exp(f, a, f, b[j], ctx)) | |
1020 | && TEST_true(BN_GF2m_add(f, e, f)) | |
1021 | /* Test that a^(c+d)=a^c*a^d. */ | |
1022 | && TEST_BN_eq_zero(f))) | |
0f113f3e | 1023 | goto err; |
0f113f3e MC |
1024 | } |
1025 | } | |
8d1ebff4 | 1026 | st = 1; |
0f113f3e MC |
1027 | err: |
1028 | BN_free(a); | |
1029 | BN_free(b[0]); | |
1030 | BN_free(b[1]); | |
1031 | BN_free(c); | |
1032 | BN_free(d); | |
1033 | BN_free(e); | |
1034 | BN_free(f); | |
8d1ebff4 | 1035 | return st; |
0f113f3e MC |
1036 | } |
1037 | ||
31a80694 | 1038 | static int test_gf2m_modsqrt(void) |
0f113f3e | 1039 | { |
1287dabd | 1040 | BIGNUM *a = NULL, *b[2] = {NULL, NULL}, *c = NULL, *d = NULL; |
30bea14b | 1041 | BIGNUM *e = NULL, *f = NULL; |
8d1ebff4 | 1042 | int i, j, st = 0; |
0f113f3e | 1043 | |
30bea14b RS |
1044 | if (!TEST_ptr(a = BN_new()) |
1045 | || !TEST_ptr(b[0] = BN_new()) | |
1046 | || !TEST_ptr(b[1] = BN_new()) | |
1047 | || !TEST_ptr(c = BN_new()) | |
1048 | || !TEST_ptr(d = BN_new()) | |
1049 | || !TEST_ptr(e = BN_new()) | |
1050 | || !TEST_ptr(f = BN_new())) | |
1051 | goto err; | |
0f113f3e | 1052 | |
e2f50811 SL |
1053 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
1054 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
1055 | goto err; | |
0f113f3e | 1056 | |
8d1ebff4 | 1057 | for (i = 0; i < NUM0; i++) { |
e2f50811 SL |
1058 | if (!TEST_true(BN_bntest_rand(a, 512, 0, 0))) |
1059 | goto err; | |
1060 | ||
0f113f3e | 1061 | for (j = 0; j < 2; j++) { |
e2f50811 SL |
1062 | if (!(TEST_true(BN_GF2m_mod(c, a, b[j])) |
1063 | && TEST_true(BN_GF2m_mod_sqrt(d, a, b[j], ctx)) | |
1064 | && TEST_true(BN_GF2m_mod_sqr(e, d, b[j], ctx)) | |
1065 | && TEST_true(BN_GF2m_add(f, c, e)) | |
1066 | /* Test that d^2 = a, where d = sqrt(a). */ | |
1067 | && TEST_BN_eq_zero(f))) | |
0f113f3e | 1068 | goto err; |
0f113f3e MC |
1069 | } |
1070 | } | |
8d1ebff4 | 1071 | st = 1; |
0f113f3e MC |
1072 | err: |
1073 | BN_free(a); | |
1074 | BN_free(b[0]); | |
1075 | BN_free(b[1]); | |
1076 | BN_free(c); | |
1077 | BN_free(d); | |
1078 | BN_free(e); | |
1079 | BN_free(f); | |
8d1ebff4 | 1080 | return st; |
0f113f3e MC |
1081 | } |
1082 | ||
31a80694 | 1083 | static int test_gf2m_modsolvequad(void) |
0f113f3e | 1084 | { |
1287dabd | 1085 | BIGNUM *a = NULL, *b[2] = {NULL, NULL}, *c = NULL, *d = NULL; |
30bea14b | 1086 | BIGNUM *e = NULL; |
8d1ebff4 | 1087 | int i, j, s = 0, t, st = 0; |
0f113f3e | 1088 | |
30bea14b RS |
1089 | if (!TEST_ptr(a = BN_new()) |
1090 | || !TEST_ptr(b[0] = BN_new()) | |
1091 | || !TEST_ptr(b[1] = BN_new()) | |
1092 | || !TEST_ptr(c = BN_new()) | |
1093 | || !TEST_ptr(d = BN_new()) | |
1094 | || !TEST_ptr(e = BN_new())) | |
1095 | goto err; | |
0f113f3e | 1096 | |
e2f50811 SL |
1097 | if (!(TEST_true(BN_GF2m_arr2poly(p0, b[0])) |
1098 | && TEST_true(BN_GF2m_arr2poly(p1, b[1])))) | |
1099 | goto err; | |
0f113f3e | 1100 | |
8d1ebff4 | 1101 | for (i = 0; i < NUM0; i++) { |
e2f50811 SL |
1102 | if (!TEST_true(BN_bntest_rand(a, 512, 0, 0))) |
1103 | goto err; | |
0f113f3e MC |
1104 | for (j = 0; j < 2; j++) { |
1105 | t = BN_GF2m_mod_solve_quad(c, a, b[j], ctx); | |
1106 | if (t) { | |
1107 | s++; | |
e2f50811 SL |
1108 | if (!(TEST_true(BN_GF2m_mod_sqr(d, c, b[j], ctx)) |
1109 | && TEST_true(BN_GF2m_add(d, c, d)) | |
1110 | && TEST_true(BN_GF2m_mod(e, a, b[j])) | |
1111 | && TEST_true(BN_GF2m_add(e, e, d)) | |
1112 | /* | |
1113 | * Test that solution of quadratic c | |
1114 | * satisfies c^2 + c = a. | |
1115 | */ | |
1116 | && TEST_BN_eq_zero(e))) | |
0f113f3e | 1117 | goto err; |
0f113f3e MC |
1118 | } |
1119 | } | |
1120 | } | |
30bea14b RS |
1121 | if (!TEST_int_ge(s, 0)) { |
1122 | TEST_info("%d tests found no roots; probably an error", NUM0); | |
0f113f3e MC |
1123 | goto err; |
1124 | } | |
8d1ebff4 | 1125 | st = 1; |
0f113f3e MC |
1126 | err: |
1127 | BN_free(a); | |
1128 | BN_free(b[0]); | |
1129 | BN_free(b[1]); | |
1130 | BN_free(c); | |
1131 | BN_free(d); | |
1132 | BN_free(e); | |
8d1ebff4 | 1133 | return st; |
0f113f3e | 1134 | } |
b3310161 | 1135 | #endif |
8d1ebff4 | 1136 | |
31a80694 | 1137 | static int test_kronecker(void) |
0f113f3e | 1138 | { |
30bea14b RS |
1139 | BIGNUM *a = NULL, *b = NULL, *r = NULL, *t = NULL; |
1140 | int i, legendre, kronecker, st = 0; | |
8d1ebff4 | 1141 | |
30bea14b RS |
1142 | if (!TEST_ptr(a = BN_new()) |
1143 | || !TEST_ptr(b = BN_new()) | |
1144 | || !TEST_ptr(r = BN_new()) | |
1145 | || !TEST_ptr(t = BN_new())) | |
8d1ebff4 RS |
1146 | goto err; |
1147 | ||
1148 | /* | |
1149 | * We test BN_kronecker(a, b, ctx) just for b odd (Jacobi symbol). In | |
1150 | * this case we know that if b is prime, then BN_kronecker(a, b, ctx) is | |
1151 | * congruent to $a^{(b-1)/2}$, modulo $b$ (Legendre symbol). So we | |
1152 | * generate a random prime b and compare these values for a number of | |
1153 | * random a's. (That is, we run the Solovay-Strassen primality test to | |
1154 | * confirm that b is prime, except that we don't want to test whether b | |
1155 | * is prime but whether BN_kronecker works.) | |
1156 | */ | |
1157 | ||
30bea14b | 1158 | if (!TEST_true(BN_generate_prime_ex(b, 512, 0, NULL, NULL, NULL))) |
8d1ebff4 | 1159 | goto err; |
2b1aa198 | 1160 | BN_set_negative(b, rand_neg()); |
8d1ebff4 RS |
1161 | |
1162 | for (i = 0; i < NUM0; i++) { | |
30bea14b | 1163 | if (!TEST_true(BN_bntest_rand(a, 512, 0, 0))) |
8d1ebff4 | 1164 | goto err; |
2b1aa198 | 1165 | BN_set_negative(a, rand_neg()); |
8d1ebff4 RS |
1166 | |
1167 | /* t := (|b|-1)/2 (note that b is odd) */ | |
30bea14b | 1168 | if (!TEST_true(BN_copy(t, b))) |
8d1ebff4 | 1169 | goto err; |
2b1aa198 | 1170 | BN_set_negative(t, 0); |
30bea14b | 1171 | if (!TEST_true(BN_sub_word(t, 1))) |
8d1ebff4 | 1172 | goto err; |
30bea14b | 1173 | if (!TEST_true(BN_rshift1(t, t))) |
8d1ebff4 RS |
1174 | goto err; |
1175 | /* r := a^t mod b */ | |
2b1aa198 | 1176 | BN_set_negative(b, 0); |
8d1ebff4 | 1177 | |
30bea14b | 1178 | if (!TEST_true(BN_mod_exp_recp(r, a, t, b, ctx))) |
8d1ebff4 | 1179 | goto err; |
2b1aa198 | 1180 | BN_set_negative(b, 1); |
8d1ebff4 RS |
1181 | |
1182 | if (BN_is_word(r, 1)) | |
1183 | legendre = 1; | |
1184 | else if (BN_is_zero(r)) | |
1185 | legendre = 0; | |
1186 | else { | |
30bea14b | 1187 | if (!TEST_true(BN_add_word(r, 1))) |
8d1ebff4 | 1188 | goto err; |
30bea14b RS |
1189 | if (!TEST_int_eq(BN_ucmp(r, b), 0)) { |
1190 | TEST_info("Legendre symbol computation failed"); | |
8d1ebff4 RS |
1191 | goto err; |
1192 | } | |
1193 | legendre = -1; | |
1194 | } | |
1195 | ||
30bea14b | 1196 | if (!TEST_int_ge(kronecker = BN_kronecker(a, b, ctx), -1)) |
8d1ebff4 RS |
1197 | goto err; |
1198 | /* we actually need BN_kronecker(a, |b|) */ | |
2b1aa198 | 1199 | if (BN_is_negative(a) && BN_is_negative(b)) |
8d1ebff4 RS |
1200 | kronecker = -kronecker; |
1201 | ||
30bea14b | 1202 | if (!TEST_int_eq(legendre, kronecker)) |
8d1ebff4 | 1203 | goto err; |
8d1ebff4 RS |
1204 | } |
1205 | ||
1206 | st = 1; | |
1207 | err: | |
1208 | BN_free(a); | |
1209 | BN_free(b); | |
1210 | BN_free(r); | |
1211 | BN_free(t); | |
1212 | return st; | |
1213 | } | |
1214 | ||
1215 | static int file_sum(STANZA *s) | |
1216 | { | |
30bea14b | 1217 | BIGNUM *a = NULL, *b = NULL, *sum = NULL, *ret = NULL; |
8d1ebff4 RS |
1218 | BN_ULONG b_word; |
1219 | int st = 0; | |
1220 | ||
30bea14b RS |
1221 | if (!TEST_ptr(a = getBN(s, "A")) |
1222 | || !TEST_ptr(b = getBN(s, "B")) | |
1223 | || !TEST_ptr(sum = getBN(s, "Sum")) | |
1224 | || !TEST_ptr(ret = BN_new())) | |
8d1ebff4 RS |
1225 | goto err; |
1226 | ||
30bea14b | 1227 | if (!TEST_true(BN_add(ret, a, b)) |
8d1ebff4 | 1228 | || !equalBN("A + B", sum, ret) |
30bea14b | 1229 | || !TEST_true(BN_sub(ret, sum, a)) |
8d1ebff4 | 1230 | || !equalBN("Sum - A", b, ret) |
30bea14b | 1231 | || !TEST_true(BN_sub(ret, sum, b)) |
8d1ebff4 RS |
1232 | || !equalBN("Sum - B", a, ret)) |
1233 | goto err; | |
1234 | ||
1235 | /* | |
1236 | * Test that the functions work when |r| and |a| point to the same BIGNUM, | |
1237 | * or when |r| and |b| point to the same BIGNUM. | |
fd009d76 | 1238 | * There is no test for all of |r|, |a|, and |b| pointint to the same BIGNUM. |
8d1ebff4 | 1239 | */ |
30bea14b RS |
1240 | if (!TEST_true(BN_copy(ret, a)) |
1241 | || !TEST_true(BN_add(ret, ret, b)) | |
8d1ebff4 | 1242 | || !equalBN("A + B (r is a)", sum, ret) |
30bea14b RS |
1243 | || !TEST_true(BN_copy(ret, b)) |
1244 | || !TEST_true(BN_add(ret, a, ret)) | |
8d1ebff4 | 1245 | || !equalBN("A + B (r is b)", sum, ret) |
30bea14b RS |
1246 | || !TEST_true(BN_copy(ret, sum)) |
1247 | || !TEST_true(BN_sub(ret, ret, a)) | |
8d1ebff4 | 1248 | || !equalBN("Sum - A (r is a)", b, ret) |
30bea14b RS |
1249 | || !TEST_true(BN_copy(ret, a)) |
1250 | || !TEST_true(BN_sub(ret, sum, ret)) | |
8d1ebff4 | 1251 | || !equalBN("Sum - A (r is b)", b, ret) |
30bea14b RS |
1252 | || !TEST_true(BN_copy(ret, sum)) |
1253 | || !TEST_true(BN_sub(ret, ret, b)) | |
8d1ebff4 | 1254 | || !equalBN("Sum - B (r is a)", a, ret) |
30bea14b RS |
1255 | || !TEST_true(BN_copy(ret, b)) |
1256 | || !TEST_true(BN_sub(ret, sum, ret)) | |
8d1ebff4 RS |
1257 | || !equalBN("Sum - B (r is b)", a, ret)) |
1258 | goto err; | |
1259 | ||
1260 | /* | |
1261 | * Test BN_uadd() and BN_usub() with the prerequisites they are | |
1262 | * documented as having. Note that these functions are frequently used | |
1263 | * when the prerequisites don't hold. In those cases, they are supposed | |
1264 | * to work as if the prerequisite hold, but we don't test that yet. | |
8d1ebff4 RS |
1265 | */ |
1266 | if (!BN_is_negative(a) && !BN_is_negative(b) && BN_cmp(a, b) >= 0) { | |
30bea14b | 1267 | if (!TEST_true(BN_uadd(ret, a, b)) |
8d1ebff4 | 1268 | || !equalBN("A +u B", sum, ret) |
30bea14b | 1269 | || !TEST_true(BN_usub(ret, sum, a)) |
8d1ebff4 | 1270 | || !equalBN("Sum -u A", b, ret) |
30bea14b | 1271 | || !TEST_true(BN_usub(ret, sum, b)) |
8d1ebff4 RS |
1272 | || !equalBN("Sum -u B", a, ret)) |
1273 | goto err; | |
1274 | /* | |
1275 | * Test that the functions work when |r| and |a| point to the same | |
1276 | * BIGNUM, or when |r| and |b| point to the same BIGNUM. | |
fd009d76 P |
1277 | * There is no test for all of |r|, |a|, and |b| pointint to the same |
1278 | * BIGNUM. | |
8d1ebff4 | 1279 | */ |
30bea14b RS |
1280 | if (!TEST_true(BN_copy(ret, a)) |
1281 | || !TEST_true(BN_uadd(ret, ret, b)) | |
8d1ebff4 | 1282 | || !equalBN("A +u B (r is a)", sum, ret) |
30bea14b RS |
1283 | || !TEST_true(BN_copy(ret, b)) |
1284 | || !TEST_true(BN_uadd(ret, a, ret)) | |
8d1ebff4 | 1285 | || !equalBN("A +u B (r is b)", sum, ret) |
30bea14b RS |
1286 | || !TEST_true(BN_copy(ret, sum)) |
1287 | || !TEST_true(BN_usub(ret, ret, a)) | |
8d1ebff4 | 1288 | || !equalBN("Sum -u A (r is a)", b, ret) |
30bea14b RS |
1289 | || !TEST_true(BN_copy(ret, a)) |
1290 | || !TEST_true(BN_usub(ret, sum, ret)) | |
8d1ebff4 | 1291 | || !equalBN("Sum -u A (r is b)", b, ret) |
30bea14b RS |
1292 | || !TEST_true(BN_copy(ret, sum)) |
1293 | || !TEST_true(BN_usub(ret, ret, b)) | |
8d1ebff4 | 1294 | || !equalBN("Sum -u B (r is a)", a, ret) |
30bea14b RS |
1295 | || !TEST_true(BN_copy(ret, b)) |
1296 | || !TEST_true(BN_usub(ret, sum, ret)) | |
8d1ebff4 RS |
1297 | || !equalBN("Sum -u B (r is b)", a, ret)) |
1298 | goto err; | |
1299 | } | |
1300 | ||
1301 | /* | |
1302 | * Test with BN_add_word() and BN_sub_word() if |b| is small enough. | |
1303 | */ | |
1304 | b_word = BN_get_word(b); | |
1305 | if (!BN_is_negative(b) && b_word != (BN_ULONG)-1) { | |
30bea14b RS |
1306 | if (!TEST_true(BN_copy(ret, a)) |
1307 | || !TEST_true(BN_add_word(ret, b_word)) | |
8d1ebff4 | 1308 | || !equalBN("A + B (word)", sum, ret) |
30bea14b RS |
1309 | || !TEST_true(BN_copy(ret, sum)) |
1310 | || !TEST_true(BN_sub_word(ret, b_word)) | |
8d1ebff4 RS |
1311 | || !equalBN("Sum - B (word)", a, ret)) |
1312 | goto err; | |
1313 | } | |
1314 | st = 1; | |
1315 | ||
fe16ae5f | 1316 | err: |
8d1ebff4 RS |
1317 | BN_free(a); |
1318 | BN_free(b); | |
1319 | BN_free(sum); | |
1320 | BN_free(ret); | |
1321 | return st; | |
1322 | } | |
1323 | ||
1324 | static int file_lshift1(STANZA *s) | |
1325 | { | |
30bea14b RS |
1326 | BIGNUM *a = NULL, *lshift1 = NULL, *zero = NULL, *ret = NULL; |
1327 | BIGNUM *two = NULL, *remainder = NULL; | |
8d1ebff4 RS |
1328 | int st = 0; |
1329 | ||
30bea14b RS |
1330 | if (!TEST_ptr(a = getBN(s, "A")) |
1331 | || !TEST_ptr(lshift1 = getBN(s, "LShift1")) | |
1332 | || !TEST_ptr(zero = BN_new()) | |
1333 | || !TEST_ptr(ret = BN_new()) | |
1334 | || !TEST_ptr(two = BN_new()) | |
1335 | || !TEST_ptr(remainder = BN_new())) | |
8d1ebff4 RS |
1336 | goto err; |
1337 | ||
1338 | BN_zero(zero); | |
1339 | ||
30bea14b RS |
1340 | if (!TEST_true(BN_set_word(two, 2)) |
1341 | || !TEST_true(BN_add(ret, a, a)) | |
8d1ebff4 | 1342 | || !equalBN("A + A", lshift1, ret) |
30bea14b | 1343 | || !TEST_true(BN_mul(ret, a, two, ctx)) |
8d1ebff4 | 1344 | || !equalBN("A * 2", lshift1, ret) |
30bea14b | 1345 | || !TEST_true(BN_div(ret, remainder, lshift1, two, ctx)) |
8d1ebff4 RS |
1346 | || !equalBN("LShift1 / 2", a, ret) |
1347 | || !equalBN("LShift1 % 2", zero, remainder) | |
30bea14b | 1348 | || !TEST_true(BN_lshift1(ret, a)) |
8d1ebff4 | 1349 | || !equalBN("A << 1", lshift1, ret) |
30bea14b | 1350 | || !TEST_true(BN_rshift1(ret, lshift1)) |
8d1ebff4 | 1351 | || !equalBN("LShift >> 1", a, ret) |
30bea14b | 1352 | || !TEST_true(BN_rshift1(ret, lshift1)) |
8d1ebff4 RS |
1353 | || !equalBN("LShift >> 1", a, ret)) |
1354 | goto err; | |
1355 | ||
1356 | /* Set the LSB to 1 and test rshift1 again. */ | |
30bea14b RS |
1357 | if (!TEST_true(BN_set_bit(lshift1, 0)) |
1358 | || !TEST_true(BN_div(ret, NULL /* rem */ , lshift1, two, ctx)) | |
8d1ebff4 | 1359 | || !equalBN("(LShift1 | 1) / 2", a, ret) |
30bea14b | 1360 | || !TEST_true(BN_rshift1(ret, lshift1)) |
8d1ebff4 RS |
1361 | || !equalBN("(LShift | 1) >> 1", a, ret)) |
1362 | goto err; | |
1363 | ||
1364 | st = 1; | |
fe16ae5f | 1365 | err: |
8d1ebff4 RS |
1366 | BN_free(a); |
1367 | BN_free(lshift1); | |
1368 | BN_free(zero); | |
1369 | BN_free(ret); | |
1370 | BN_free(two); | |
1371 | BN_free(remainder); | |
1372 | ||
1373 | return st; | |
1374 | } | |
1375 | ||
1376 | static int file_lshift(STANZA *s) | |
1377 | { | |
30bea14b RS |
1378 | BIGNUM *a = NULL, *lshift = NULL, *ret = NULL; |
1379 | int n = 0, st = 0; | |
8d1ebff4 | 1380 | |
30bea14b RS |
1381 | if (!TEST_ptr(a = getBN(s, "A")) |
1382 | || !TEST_ptr(lshift = getBN(s, "LShift")) | |
83ccead4 MC |
1383 | || !TEST_ptr(ret = BN_new()) |
1384 | || !getint(s, &n, "N")) | |
1385 | goto err; | |
8d1ebff4 | 1386 | |
30bea14b | 1387 | if (!TEST_true(BN_lshift(ret, a, n)) |
8d1ebff4 | 1388 | || !equalBN("A << N", lshift, ret) |
30bea14b | 1389 | || !TEST_true(BN_rshift(ret, lshift, n)) |
8d1ebff4 RS |
1390 | || !equalBN("A >> N", a, ret)) |
1391 | goto err; | |
1392 | ||
1393 | st = 1; | |
fe16ae5f | 1394 | err: |
8d1ebff4 RS |
1395 | BN_free(a); |
1396 | BN_free(lshift); | |
1397 | BN_free(ret); | |
1398 | return st; | |
1399 | } | |
1400 | ||
1401 | static int file_rshift(STANZA *s) | |
1402 | { | |
30bea14b RS |
1403 | BIGNUM *a = NULL, *rshift = NULL, *ret = NULL; |
1404 | int n = 0, st = 0; | |
8d1ebff4 | 1405 | |
30bea14b RS |
1406 | if (!TEST_ptr(a = getBN(s, "A")) |
1407 | || !TEST_ptr(rshift = getBN(s, "RShift")) | |
1408 | || !TEST_ptr(ret = BN_new()) | |
1409 | || !getint(s, &n, "N")) | |
8d1ebff4 RS |
1410 | goto err; |
1411 | ||
30bea14b | 1412 | if (!TEST_true(BN_rshift(ret, a, n)) |
8d1ebff4 | 1413 | || !equalBN("A >> N", rshift, ret)) |
30bea14b | 1414 | goto err; |
ceac1975 RL |
1415 | |
1416 | /* If N == 1, try with rshift1 as well */ | |
1417 | if (n == 1) { | |
30bea14b | 1418 | if (!TEST_true(BN_rshift1(ret, a)) |
ceac1975 | 1419 | || !equalBN("A >> 1 (rshift1)", rshift, ret)) |
30bea14b | 1420 | goto err; |
ceac1975 | 1421 | } |
30bea14b | 1422 | st = 1; |
8d1ebff4 | 1423 | |
fe16ae5f | 1424 | err: |
8d1ebff4 RS |
1425 | BN_free(a); |
1426 | BN_free(rshift); | |
1427 | BN_free(ret); | |
30bea14b | 1428 | return st; |
8d1ebff4 RS |
1429 | } |
1430 | ||
1431 | static int file_square(STANZA *s) | |
1432 | { | |
30bea14b RS |
1433 | BIGNUM *a = NULL, *square = NULL, *zero = NULL, *ret = NULL; |
1434 | BIGNUM *remainder = NULL, *tmp = NULL; | |
8d1ebff4 RS |
1435 | int st = 0; |
1436 | ||
30bea14b RS |
1437 | if (!TEST_ptr(a = getBN(s, "A")) |
1438 | || !TEST_ptr(square = getBN(s, "Square")) | |
1439 | || !TEST_ptr(zero = BN_new()) | |
1440 | || !TEST_ptr(ret = BN_new()) | |
1441 | || !TEST_ptr(remainder = BN_new())) | |
8d1ebff4 RS |
1442 | goto err; |
1443 | ||
1444 | BN_zero(zero); | |
30bea14b | 1445 | if (!TEST_true(BN_sqr(ret, a, ctx)) |
8d1ebff4 | 1446 | || !equalBN("A^2", square, ret) |
30bea14b | 1447 | || !TEST_true(BN_mul(ret, a, a, ctx)) |
8d1ebff4 | 1448 | || !equalBN("A * A", square, ret) |
30bea14b | 1449 | || !TEST_true(BN_div(ret, remainder, square, a, ctx)) |
8d1ebff4 RS |
1450 | || !equalBN("Square / A", a, ret) |
1451 | || !equalBN("Square % A", zero, remainder)) | |
1452 | goto err; | |
1453 | ||
1454 | #if HAVE_BN_SQRT | |
1455 | BN_set_negative(a, 0); | |
30bea14b | 1456 | if (!TEST_true(BN_sqrt(ret, square, ctx)) |
8d1ebff4 RS |
1457 | || !equalBN("sqrt(Square)", a, ret)) |
1458 | goto err; | |
1459 | ||
1460 | /* BN_sqrt should fail on non-squares and negative numbers. */ | |
dc352c19 P |
1461 | if (!TEST_BN_eq_zero(square)) { |
1462 | if (!TEST_ptr(tmp = BN_new()) | |
1463 | || !TEST_true(BN_copy(tmp, square))) | |
8d1ebff4 RS |
1464 | goto err; |
1465 | BN_set_negative(tmp, 1); | |
1466 | ||
30bea14b | 1467 | if (!TEST_int_eq(BN_sqrt(ret, tmp, ctx), 0)) |
8d1ebff4 | 1468 | goto err; |
8d1ebff4 RS |
1469 | ERR_clear_error(); |
1470 | ||
1471 | BN_set_negative(tmp, 0); | |
1472 | if (BN_add(tmp, tmp, BN_value_one())) | |
1473 | goto err; | |
30bea14b | 1474 | if (!TEST_int_eq(BN_sqrt(ret, tmp, ctx))) |
8d1ebff4 | 1475 | goto err; |
8d1ebff4 RS |
1476 | ERR_clear_error(); |
1477 | } | |
1478 | #endif | |
1479 | ||
1480 | st = 1; | |
fe16ae5f | 1481 | err: |
8d1ebff4 RS |
1482 | BN_free(a); |
1483 | BN_free(square); | |
1484 | BN_free(zero); | |
1485 | BN_free(ret); | |
1486 | BN_free(remainder); | |
1487 | BN_free(tmp); | |
1488 | return st; | |
1489 | } | |
1490 | ||
1491 | static int file_product(STANZA *s) | |
1492 | { | |
30bea14b RS |
1493 | BIGNUM *a = NULL, *b = NULL, *product = NULL, *ret = NULL; |
1494 | BIGNUM *remainder = NULL, *zero = NULL; | |
8d1ebff4 RS |
1495 | int st = 0; |
1496 | ||
30bea14b RS |
1497 | if (!TEST_ptr(a = getBN(s, "A")) |
1498 | || !TEST_ptr(b = getBN(s, "B")) | |
1499 | || !TEST_ptr(product = getBN(s, "Product")) | |
1500 | || !TEST_ptr(ret = BN_new()) | |
1501 | || !TEST_ptr(remainder = BN_new()) | |
1502 | || !TEST_ptr(zero = BN_new())) | |
8d1ebff4 RS |
1503 | goto err; |
1504 | ||
1505 | BN_zero(zero); | |
1506 | ||
30bea14b | 1507 | if (!TEST_true(BN_mul(ret, a, b, ctx)) |
8d1ebff4 | 1508 | || !equalBN("A * B", product, ret) |
30bea14b | 1509 | || !TEST_true(BN_div(ret, remainder, product, a, ctx)) |
8d1ebff4 RS |
1510 | || !equalBN("Product / A", b, ret) |
1511 | || !equalBN("Product % A", zero, remainder) | |
30bea14b | 1512 | || !TEST_true(BN_div(ret, remainder, product, b, ctx)) |
8d1ebff4 RS |
1513 | || !equalBN("Product / B", a, ret) |
1514 | || !equalBN("Product % B", zero, remainder)) | |
1515 | goto err; | |
1516 | ||
1517 | st = 1; | |
fe16ae5f | 1518 | err: |
8d1ebff4 RS |
1519 | BN_free(a); |
1520 | BN_free(b); | |
1521 | BN_free(product); | |
1522 | BN_free(ret); | |
1523 | BN_free(remainder); | |
1524 | BN_free(zero); | |
1525 | return st; | |
1526 | } | |
1527 | ||
1528 | static int file_quotient(STANZA *s) | |
1529 | { | |
30bea14b RS |
1530 | BIGNUM *a = NULL, *b = NULL, *quotient = NULL, *remainder = NULL; |
1531 | BIGNUM *ret = NULL, *ret2 = NULL, *nnmod = NULL; | |
8d1ebff4 RS |
1532 | BN_ULONG b_word, ret_word; |
1533 | int st = 0; | |
1534 | ||
30bea14b RS |
1535 | if (!TEST_ptr(a = getBN(s, "A")) |
1536 | || !TEST_ptr(b = getBN(s, "B")) | |
1537 | || !TEST_ptr(quotient = getBN(s, "Quotient")) | |
1538 | || !TEST_ptr(remainder = getBN(s, "Remainder")) | |
1539 | || !TEST_ptr(ret = BN_new()) | |
1540 | || !TEST_ptr(ret2 = BN_new()) | |
1541 | || !TEST_ptr(nnmod = BN_new())) | |
8d1ebff4 RS |
1542 | goto err; |
1543 | ||
30bea14b | 1544 | if (!TEST_true(BN_div(ret, ret2, a, b, ctx)) |
8d1ebff4 RS |
1545 | || !equalBN("A / B", quotient, ret) |
1546 | || !equalBN("A % B", remainder, ret2) | |
30bea14b RS |
1547 | || !TEST_true(BN_mul(ret, quotient, b, ctx)) |
1548 | || !TEST_true(BN_add(ret, ret, remainder)) | |
8d1ebff4 RS |
1549 | || !equalBN("Quotient * B + Remainder", a, ret)) |
1550 | goto err; | |
1551 | ||
1552 | /* | |
1553 | * Test with BN_mod_word() and BN_div_word() if the divisor is | |
1554 | * small enough. | |
1555 | */ | |
1556 | b_word = BN_get_word(b); | |
1557 | if (!BN_is_negative(b) && b_word != (BN_ULONG)-1) { | |
1558 | BN_ULONG remainder_word = BN_get_word(remainder); | |
1559 | ||
1560 | assert(remainder_word != (BN_ULONG)-1); | |
30bea14b | 1561 | if (!TEST_ptr(BN_copy(ret, a))) |
8d1ebff4 RS |
1562 | goto err; |
1563 | ret_word = BN_div_word(ret, b_word); | |
1564 | if (ret_word != remainder_word) { | |
1565 | #ifdef BN_DEC_FMT1 | |
30bea14b RS |
1566 | TEST_error( |
1567 | "Got A %% B (word) = " BN_DEC_FMT1 ", wanted " BN_DEC_FMT1, | |
8d1ebff4 RS |
1568 | ret_word, remainder_word); |
1569 | #else | |
30bea14b | 1570 | TEST_error("Got A %% B (word) mismatch"); |
8d1ebff4 RS |
1571 | #endif |
1572 | goto err; | |
1573 | } | |
1574 | if (!equalBN ("A / B (word)", quotient, ret)) | |
1575 | goto err; | |
1576 | ||
1577 | ret_word = BN_mod_word(a, b_word); | |
1578 | if (ret_word != remainder_word) { | |
1579 | #ifdef BN_DEC_FMT1 | |
30bea14b RS |
1580 | TEST_error( |
1581 | "Got A %% B (word) = " BN_DEC_FMT1 ", wanted " BN_DEC_FMT1 "", | |
8d1ebff4 RS |
1582 | ret_word, remainder_word); |
1583 | #else | |
30bea14b | 1584 | TEST_error("Got A %% B (word) mismatch"); |
8d1ebff4 RS |
1585 | #endif |
1586 | goto err; | |
1587 | } | |
1588 | } | |
1589 | ||
1590 | /* Test BN_nnmod. */ | |
1591 | if (!BN_is_negative(b)) { | |
30bea14b RS |
1592 | if (!TEST_true(BN_copy(nnmod, remainder)) |
1593 | || (BN_is_negative(nnmod) | |
1594 | && !TEST_true(BN_add(nnmod, nnmod, b))) | |
1595 | || !TEST_true(BN_nnmod(ret, a, b, ctx)) | |
8d1ebff4 RS |
1596 | || !equalBN("A % B (non-negative)", nnmod, ret)) |
1597 | goto err; | |
1598 | } | |
1599 | ||
1600 | st = 1; | |
fe16ae5f | 1601 | err: |
8d1ebff4 RS |
1602 | BN_free(a); |
1603 | BN_free(b); | |
1604 | BN_free(quotient); | |
1605 | BN_free(remainder); | |
1606 | BN_free(ret); | |
1607 | BN_free(ret2); | |
1608 | BN_free(nnmod); | |
1609 | return st; | |
1610 | } | |
1611 | ||
1612 | static int file_modmul(STANZA *s) | |
1613 | { | |
30bea14b | 1614 | BIGNUM *a = NULL, *b = NULL, *m = NULL, *mod_mul = NULL, *ret = NULL; |
8d1ebff4 RS |
1615 | int st = 0; |
1616 | ||
30bea14b RS |
1617 | if (!TEST_ptr(a = getBN(s, "A")) |
1618 | || !TEST_ptr(b = getBN(s, "B")) | |
1619 | || !TEST_ptr(m = getBN(s, "M")) | |
1620 | || !TEST_ptr(mod_mul = getBN(s, "ModMul")) | |
1621 | || !TEST_ptr(ret = BN_new())) | |
8d1ebff4 RS |
1622 | goto err; |
1623 | ||
30bea14b | 1624 | if (!TEST_true(BN_mod_mul(ret, a, b, m, ctx)) |
8d1ebff4 RS |
1625 | || !equalBN("A * B (mod M)", mod_mul, ret)) |
1626 | goto err; | |
1627 | ||
1628 | if (BN_is_odd(m)) { | |
1629 | /* Reduce |a| and |b| and test the Montgomery version. */ | |
1630 | BN_MONT_CTX *mont = BN_MONT_CTX_new(); | |
1631 | BIGNUM *a_tmp = BN_new(); | |
1632 | BIGNUM *b_tmp = BN_new(); | |
30bea14b | 1633 | |
8d1ebff4 | 1634 | if (mont == NULL || a_tmp == NULL || b_tmp == NULL |
30bea14b RS |
1635 | || !TEST_true(BN_MONT_CTX_set(mont, m, ctx)) |
1636 | || !TEST_true(BN_nnmod(a_tmp, a, m, ctx)) | |
1637 | || !TEST_true(BN_nnmod(b_tmp, b, m, ctx)) | |
1638 | || !TEST_true(BN_to_montgomery(a_tmp, a_tmp, mont, ctx)) | |
1639 | || !TEST_true(BN_to_montgomery(b_tmp, b_tmp, mont, ctx)) | |
1640 | || !TEST_true(BN_mod_mul_montgomery(ret, a_tmp, b_tmp, | |
1641 | mont, ctx)) | |
1642 | || !TEST_true(BN_from_montgomery(ret, ret, mont, ctx)) | |
1643 | || !equalBN("A * B (mod M) (mont)", mod_mul, ret)) | |
8d1ebff4 | 1644 | st = 0; |
30bea14b | 1645 | else |
8d1ebff4 | 1646 | st = 1; |
8d1ebff4 RS |
1647 | BN_MONT_CTX_free(mont); |
1648 | BN_free(a_tmp); | |
1649 | BN_free(b_tmp); | |
1650 | if (st == 0) | |
1651 | goto err; | |
1652 | } | |
1653 | ||
1654 | st = 1; | |
fe16ae5f | 1655 | err: |
8d1ebff4 RS |
1656 | BN_free(a); |
1657 | BN_free(b); | |
1658 | BN_free(m); | |
1659 | BN_free(mod_mul); | |
1660 | BN_free(ret); | |
1661 | return st; | |
1662 | } | |
1663 | ||
1664 | static int file_modexp(STANZA *s) | |
1665 | { | |
30bea14b RS |
1666 | BIGNUM *a = NULL, *e = NULL, *m = NULL, *mod_exp = NULL, *ret = NULL; |
1667 | BIGNUM *b = NULL, *c = NULL, *d = NULL; | |
8d1ebff4 RS |
1668 | int st = 0; |
1669 | ||
30bea14b RS |
1670 | if (!TEST_ptr(a = getBN(s, "A")) |
1671 | || !TEST_ptr(e = getBN(s, "E")) | |
1672 | || !TEST_ptr(m = getBN(s, "M")) | |
1673 | || !TEST_ptr(mod_exp = getBN(s, "ModExp")) | |
1674 | || !TEST_ptr(ret = BN_new()) | |
1675 | || !TEST_ptr(d = BN_new())) | |
8d1ebff4 RS |
1676 | goto err; |
1677 | ||
30bea14b | 1678 | if (!TEST_true(BN_mod_exp(ret, a, e, m, ctx)) |
8d1ebff4 RS |
1679 | || !equalBN("A ^ E (mod M)", mod_exp, ret)) |
1680 | goto err; | |
1681 | ||
1682 | if (BN_is_odd(m)) { | |
30bea14b | 1683 | if (!TEST_true(BN_mod_exp_mont(ret, a, e, m, ctx, NULL)) |
8d1ebff4 | 1684 | || !equalBN("A ^ E (mod M) (mont)", mod_exp, ret) |
30bea14b RS |
1685 | || !TEST_true(BN_mod_exp_mont_consttime(ret, a, e, m, |
1686 | ctx, NULL)) | |
8d1ebff4 RS |
1687 | || !equalBN("A ^ E (mod M) (mont const", mod_exp, ret)) |
1688 | goto err; | |
1689 | } | |
1690 | ||
1691 | /* Regression test for carry propagation bug in sqr8x_reduction */ | |
1692 | BN_hex2bn(&a, "050505050505"); | |
1693 | BN_hex2bn(&b, "02"); | |
1694 | BN_hex2bn(&c, | |
1695 | "4141414141414141414141274141414141414141414141414141414141414141" | |
1696 | "4141414141414141414141414141414141414141414141414141414141414141" | |
1697 | "4141414141414141414141800000000000000000000000000000000000000000" | |
1698 | "0000000000000000000000000000000000000000000000000000000000000000" | |
1699 | "0000000000000000000000000000000000000000000000000000000000000000" | |
1700 | "0000000000000000000000000000000000000000000000000000000001"); | |
9e206ce5 P |
1701 | if (!TEST_true(BN_mod_exp(d, a, b, c, ctx)) |
1702 | || !TEST_true(BN_mul(e, a, a, ctx)) | |
1703 | || !TEST_BN_eq(d, e)) | |
8d1ebff4 | 1704 | goto err; |
8d1ebff4 RS |
1705 | |
1706 | st = 1; | |
fe16ae5f | 1707 | err: |
8d1ebff4 RS |
1708 | BN_free(a); |
1709 | BN_free(b); | |
1710 | BN_free(c); | |
1711 | BN_free(d); | |
1712 | BN_free(e); | |
1713 | BN_free(m); | |
1714 | BN_free(mod_exp); | |
1715 | BN_free(ret); | |
1716 | return st; | |
1717 | } | |
1718 | ||
1719 | static int file_exp(STANZA *s) | |
1720 | { | |
30bea14b | 1721 | BIGNUM *a = NULL, *e = NULL, *exp = NULL, *ret = NULL; |
8d1ebff4 RS |
1722 | int st = 0; |
1723 | ||
30bea14b RS |
1724 | if (!TEST_ptr(a = getBN(s, "A")) |
1725 | || !TEST_ptr(e = getBN(s, "E")) | |
1726 | || !TEST_ptr(exp = getBN(s, "Exp")) | |
1727 | || !TEST_ptr(ret = BN_new())) | |
8d1ebff4 RS |
1728 | goto err; |
1729 | ||
30bea14b | 1730 | if (!TEST_true(BN_exp(ret, a, e, ctx)) |
8d1ebff4 RS |
1731 | || !equalBN("A ^ E", exp, ret)) |
1732 | goto err; | |
1733 | ||
1734 | st = 1; | |
fe16ae5f | 1735 | err: |
8d1ebff4 RS |
1736 | BN_free(a); |
1737 | BN_free(e); | |
1738 | BN_free(exp); | |
1739 | BN_free(ret); | |
1740 | return st; | |
1741 | } | |
1742 | ||
1743 | static int file_modsqrt(STANZA *s) | |
1744 | { | |
30bea14b | 1745 | BIGNUM *a = NULL, *p = NULL, *mod_sqrt = NULL, *ret = NULL, *ret2 = NULL; |
8d1ebff4 RS |
1746 | int st = 0; |
1747 | ||
30bea14b RS |
1748 | if (!TEST_ptr(a = getBN(s, "A")) |
1749 | || !TEST_ptr(p = getBN(s, "P")) | |
1750 | || !TEST_ptr(mod_sqrt = getBN(s, "ModSqrt")) | |
1751 | || !TEST_ptr(ret = BN_new()) | |
1752 | || !TEST_ptr(ret2 = BN_new())) | |
8d1ebff4 RS |
1753 | goto err; |
1754 | ||
3469282e TM |
1755 | if (BN_is_negative(mod_sqrt)) { |
1756 | /* A negative testcase */ | |
1757 | if (!TEST_ptr_null(BN_mod_sqrt(ret, a, p, ctx))) | |
1758 | goto err; | |
1759 | ||
1760 | st = 1; | |
1761 | goto err; | |
1762 | } | |
1763 | ||
8d1ebff4 | 1764 | /* There are two possible answers. */ |
3469282e | 1765 | if (!TEST_ptr(BN_mod_sqrt(ret, a, p, ctx)) |
30bea14b | 1766 | || !TEST_true(BN_sub(ret2, p, ret))) |
8d1ebff4 RS |
1767 | goto err; |
1768 | ||
30bea14b | 1769 | /* The first condition should NOT be a test. */ |
8d1ebff4 RS |
1770 | if (BN_cmp(ret2, mod_sqrt) != 0 |
1771 | && !equalBN("sqrt(A) (mod P)", mod_sqrt, ret)) | |
1772 | goto err; | |
1773 | ||
1774 | st = 1; | |
fe16ae5f | 1775 | err: |
8d1ebff4 RS |
1776 | BN_free(a); |
1777 | BN_free(p); | |
1778 | BN_free(mod_sqrt); | |
1779 | BN_free(ret); | |
1780 | BN_free(ret2); | |
1781 | return st; | |
1782 | } | |
1783 | ||
b75d6310 CPG |
1784 | static int file_gcd(STANZA *s) |
1785 | { | |
1786 | BIGNUM *a = NULL, *b = NULL, *gcd = NULL, *ret = NULL; | |
1787 | int st = 0; | |
1788 | ||
1789 | if (!TEST_ptr(a = getBN(s, "A")) | |
1790 | || !TEST_ptr(b = getBN(s, "B")) | |
1791 | || !TEST_ptr(gcd = getBN(s, "GCD")) | |
1792 | || !TEST_ptr(ret = BN_new())) | |
1793 | goto err; | |
1794 | ||
1795 | if (!TEST_true(BN_gcd(ret, a, b, ctx)) | |
1796 | || !equalBN("gcd(A,B)", gcd, ret)) | |
1797 | goto err; | |
1798 | ||
1799 | st = 1; | |
1800 | err: | |
1801 | BN_free(a); | |
1802 | BN_free(b); | |
1803 | BN_free(gcd); | |
1804 | BN_free(ret); | |
1805 | return st; | |
1806 | } | |
1807 | ||
31a80694 | 1808 | static int test_bn2padded(void) |
8d1ebff4 | 1809 | { |
8d1ebff4 | 1810 | uint8_t zeros[256], out[256], reference[128]; |
23750f67 RL |
1811 | size_t bytes; |
1812 | BIGNUM *n; | |
8d1ebff4 RS |
1813 | int st = 0; |
1814 | ||
1815 | /* Test edge case at 0. */ | |
23750f67 | 1816 | if (!TEST_ptr((n = BN_new()))) |
8d1ebff4 | 1817 | goto err; |
23750f67 | 1818 | if (!TEST_int_eq(BN_bn2binpad(n, NULL, 0), 0)) |
8d1ebff4 | 1819 | goto err; |
8d1ebff4 | 1820 | memset(out, -1, sizeof(out)); |
23750f67 | 1821 | if (!TEST_int_eq(BN_bn2binpad(n, out, sizeof(out)), sizeof(out))) |
8d1ebff4 | 1822 | goto err; |
8d1ebff4 | 1823 | memset(zeros, 0, sizeof(zeros)); |
30bea14b | 1824 | if (!TEST_mem_eq(zeros, sizeof(zeros), out, sizeof(out))) |
8d1ebff4 | 1825 | goto err; |
8d1ebff4 RS |
1826 | |
1827 | /* Test a random numbers at various byte lengths. */ | |
23750f67 | 1828 | for (bytes = 128 - 7; bytes <= 128; bytes++) { |
fe16ae5f NT |
1829 | # define TOP_BIT_ON 0 |
1830 | # define BOTTOM_BIT_NOTOUCH 0 | |
30bea14b | 1831 | if (!TEST_true(BN_rand(n, bytes * 8, TOP_BIT_ON, BOTTOM_BIT_NOTOUCH))) |
8d1ebff4 | 1832 | goto err; |
23750f67 RL |
1833 | if (!TEST_int_eq(BN_num_bytes(n), bytes) |
1834 | || !TEST_int_eq(BN_bn2bin(n, reference), bytes)) | |
8d1ebff4 | 1835 | goto err; |
8d1ebff4 | 1836 | /* Empty buffer should fail. */ |
23750f67 | 1837 | if (!TEST_int_eq(BN_bn2binpad(n, NULL, 0), -1)) |
8d1ebff4 | 1838 | goto err; |
8d1ebff4 | 1839 | /* One byte short should fail. */ |
23750f67 | 1840 | if (!TEST_int_eq(BN_bn2binpad(n, out, bytes - 1), -1)) |
8d1ebff4 | 1841 | goto err; |
8d1ebff4 | 1842 | /* Exactly right size should encode. */ |
23750f67 RL |
1843 | if (!TEST_int_eq(BN_bn2binpad(n, out, bytes), bytes) |
1844 | || !TEST_mem_eq(out, bytes, reference, bytes)) | |
8d1ebff4 | 1845 | goto err; |
8d1ebff4 | 1846 | /* Pad up one byte extra. */ |
23750f67 | 1847 | if (!TEST_int_eq(BN_bn2binpad(n, out, bytes + 1), bytes + 1) |
30bea14b RS |
1848 | || !TEST_mem_eq(out + 1, bytes, reference, bytes) |
1849 | || !TEST_mem_eq(out, 1, zeros, 1)) | |
8d1ebff4 | 1850 | goto err; |
8d1ebff4 | 1851 | /* Pad up to 256. */ |
23750f67 | 1852 | if (!TEST_int_eq(BN_bn2binpad(n, out, sizeof(out)), sizeof(out)) |
30bea14b RS |
1853 | || !TEST_mem_eq(out + sizeof(out) - bytes, bytes, |
1854 | reference, bytes) | |
23750f67 | 1855 | || !TEST_mem_eq(out, sizeof(out) - bytes, |
30bea14b | 1856 | zeros, sizeof(out) - bytes)) |
8d1ebff4 | 1857 | goto err; |
8d1ebff4 RS |
1858 | } |
1859 | ||
1860 | st = 1; | |
fe16ae5f | 1861 | err: |
8d1ebff4 RS |
1862 | BN_free(n); |
1863 | return st; | |
8d1ebff4 RS |
1864 | } |
1865 | ||
5288303d RL |
1866 | static const MPITEST kSignedTests_BE[] = { |
1867 | {"-1", "\xff", 1}, | |
1868 | {"0", "", 0}, | |
1869 | {"1", "\x01", 1}, | |
1870 | /* | |
1871 | * The above cover the basics, now let's go for possible bignum | |
1872 | * chunk edges and other word edges (for a broad definition of | |
1873 | * "word", i.e. 1 byte included). | |
1874 | */ | |
1875 | /* 1 byte edge */ | |
1876 | {"127", "\x7f", 1}, | |
1877 | {"-127", "\x81", 1}, | |
1878 | {"128", "\x00\x80", 2}, | |
1879 | {"-128", "\x80", 1}, | |
1880 | {"129", "\x00\x81", 2}, | |
1881 | {"-129", "\xff\x7f", 2}, | |
1882 | {"255", "\x00\xff", 2}, | |
1883 | {"-255", "\xff\x01", 2}, | |
1884 | {"256", "\x01\x00", 2}, | |
1885 | {"-256", "\xff\x00", 2}, | |
1886 | /* 2 byte edge */ | |
1887 | {"32767", "\x7f\xff", 2}, | |
1888 | {"-32767", "\x80\x01", 2}, | |
1889 | {"32768", "\x00\x80\x00", 3}, | |
1890 | {"-32768", "\x80\x00", 2}, | |
1891 | {"32769", "\x00\x80\x01", 3}, | |
1892 | {"-32769", "\xff\x7f\xff", 3}, | |
1893 | {"65535", "\x00\xff\xff", 3}, | |
1894 | {"-65535", "\xff\x00\x01", 3}, | |
1895 | {"65536", "\x01\x00\x00", 3}, | |
1896 | {"-65536", "\xff\x00\x00", 3}, | |
1897 | /* 4 byte edge */ | |
1898 | {"2147483647", "\x7f\xff\xff\xff", 4}, | |
1899 | {"-2147483647", "\x80\x00\x00\x01", 4}, | |
1900 | {"2147483648", "\x00\x80\x00\x00\x00", 5}, | |
1901 | {"-2147483648", "\x80\x00\x00\x00", 4}, | |
1902 | {"2147483649", "\x00\x80\x00\x00\x01", 5}, | |
1903 | {"-2147483649", "\xff\x7f\xff\xff\xff", 5}, | |
1904 | {"4294967295", "\x00\xff\xff\xff\xff", 5}, | |
1905 | {"-4294967295", "\xff\x00\x00\x00\x01", 5}, | |
1906 | {"4294967296", "\x01\x00\x00\x00\x00", 5}, | |
1907 | {"-4294967296", "\xff\x00\x00\x00\x00", 5}, | |
1908 | /* 8 byte edge */ | |
1909 | {"9223372036854775807", "\x7f\xff\xff\xff\xff\xff\xff\xff", 8}, | |
1910 | {"-9223372036854775807", "\x80\x00\x00\x00\x00\x00\x00\x01", 8}, | |
1911 | {"9223372036854775808", "\x00\x80\x00\x00\x00\x00\x00\x00\x00", 9}, | |
1912 | {"-9223372036854775808", "\x80\x00\x00\x00\x00\x00\x00\x00", 8}, | |
1913 | {"9223372036854775809", "\x00\x80\x00\x00\x00\x00\x00\x00\x01", 9}, | |
1914 | {"-9223372036854775809", "\xff\x7f\xff\xff\xff\xff\xff\xff\xff", 9}, | |
1915 | {"18446744073709551615", "\x00\xff\xff\xff\xff\xff\xff\xff\xff", 9}, | |
1916 | {"-18446744073709551615", "\xff\x00\x00\x00\x00\x00\x00\x00\x01", 9}, | |
1917 | {"18446744073709551616", "\x01\x00\x00\x00\x00\x00\x00\x00\x00", 9}, | |
1918 | {"-18446744073709551616", "\xff\x00\x00\x00\x00\x00\x00\x00\x00", 9}, | |
1919 | }; | |
1920 | ||
1921 | static int copy_reversed(uint8_t *dst, uint8_t *src, size_t len) | |
1922 | { | |
1923 | for (dst += len - 1; len > 0; src++, dst--, len--) | |
1924 | *dst = *src; | |
1925 | return 1; | |
1926 | } | |
1927 | ||
1928 | static int test_bn2signed(int i) | |
1929 | { | |
1930 | uint8_t scratch[10], reversed[10]; | |
1931 | const MPITEST *test = &kSignedTests_BE[i]; | |
1932 | BIGNUM *bn = NULL, *bn2 = NULL; | |
1933 | int st = 0; | |
1934 | ||
1935 | if (!TEST_ptr(bn = BN_new()) | |
1936 | || !TEST_true(BN_asc2bn(&bn, test->base10))) | |
1937 | goto err; | |
1938 | ||
1939 | /* | |
1940 | * Check BN_signed_bn2bin() / BN_signed_bin2bn() | |
1941 | * The interesting stuff happens in the last bytes of the buffers, | |
1942 | * the beginning is just padding (i.e. sign extension). | |
1943 | */ | |
1944 | i = sizeof(scratch) - test->mpi_len; | |
1945 | if (!TEST_int_eq(BN_signed_bn2bin(bn, scratch, sizeof(scratch)), | |
1946 | sizeof(scratch)) | |
1947 | || !TEST_true(copy_reversed(reversed, scratch, sizeof(scratch))) | |
1948 | || !TEST_mem_eq(test->mpi, test->mpi_len, scratch + i, test->mpi_len)) | |
1949 | goto err; | |
1950 | ||
1951 | if (!TEST_ptr(bn2 = BN_signed_bin2bn(scratch, sizeof(scratch), NULL)) | |
1952 | || !TEST_BN_eq(bn, bn2)) | |
1953 | goto err; | |
1954 | ||
1955 | BN_free(bn2); | |
1956 | bn2 = NULL; | |
1957 | ||
1958 | /* Check that a parse of the reversed buffer works too */ | |
1959 | if (!TEST_ptr(bn2 = BN_signed_lebin2bn(reversed, sizeof(reversed), NULL)) | |
1960 | || !TEST_BN_eq(bn, bn2)) | |
1961 | goto err; | |
1962 | ||
1963 | BN_free(bn2); | |
1964 | bn2 = NULL; | |
1965 | ||
1966 | /* | |
1967 | * Check BN_signed_bn2lebin() / BN_signed_lebin2bn() | |
1968 | * The interesting stuff happens in the first bytes of the buffers, | |
1969 | * the end is just padding (i.e. sign extension). | |
1970 | */ | |
1971 | i = sizeof(reversed) - test->mpi_len; | |
1972 | if (!TEST_int_eq(BN_signed_bn2lebin(bn, scratch, sizeof(scratch)), | |
1973 | sizeof(scratch)) | |
1974 | || !TEST_true(copy_reversed(reversed, scratch, sizeof(scratch))) | |
1975 | || !TEST_mem_eq(test->mpi, test->mpi_len, reversed + i, test->mpi_len)) | |
1976 | goto err; | |
1977 | ||
1978 | if (!TEST_ptr(bn2 = BN_signed_lebin2bn(scratch, sizeof(scratch), NULL)) | |
1979 | || !TEST_BN_eq(bn, bn2)) | |
1980 | goto err; | |
1981 | ||
1982 | BN_free(bn2); | |
1983 | bn2 = NULL; | |
1984 | ||
1985 | /* Check that a parse of the reversed buffer works too */ | |
1986 | if (!TEST_ptr(bn2 = BN_signed_bin2bn(reversed, sizeof(reversed), NULL)) | |
1987 | || !TEST_BN_eq(bn, bn2)) | |
1988 | goto err; | |
1989 | ||
1990 | st = 1; | |
1991 | err: | |
1992 | BN_free(bn2); | |
1993 | BN_free(bn); | |
1994 | return st; | |
1995 | } | |
1996 | ||
31a80694 | 1997 | static int test_dec2bn(void) |
8d1ebff4 RS |
1998 | { |
1999 | BIGNUM *bn = NULL; | |
2000 | int st = 0; | |
2001 | ||
30bea14b | 2002 | if (!TEST_int_eq(parsedecBN(&bn, "0"), 1) |
dc352c19 P |
2003 | || !TEST_BN_eq_word(bn, 0) |
2004 | || !TEST_BN_eq_zero(bn) | |
2005 | || !TEST_BN_le_zero(bn) | |
2006 | || !TEST_BN_ge_zero(bn) | |
2007 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 2008 | goto err; |
8d1ebff4 | 2009 | BN_free(bn); |
dc352c19 | 2010 | bn = NULL; |
8d1ebff4 | 2011 | |
30bea14b | 2012 | if (!TEST_int_eq(parsedecBN(&bn, "256"), 3) |
dc352c19 P |
2013 | || !TEST_BN_eq_word(bn, 256) |
2014 | || !TEST_BN_ge_zero(bn) | |
2015 | || !TEST_BN_gt_zero(bn) | |
2016 | || !TEST_BN_ne_zero(bn) | |
2017 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 2018 | goto err; |
8d1ebff4 | 2019 | BN_free(bn); |
dc352c19 | 2020 | bn = NULL; |
8d1ebff4 | 2021 | |
30bea14b | 2022 | if (!TEST_int_eq(parsedecBN(&bn, "-42"), 3) |
dc352c19 P |
2023 | || !TEST_BN_abs_eq_word(bn, 42) |
2024 | || !TEST_BN_lt_zero(bn) | |
2025 | || !TEST_BN_le_zero(bn) | |
2026 | || !TEST_BN_ne_zero(bn) | |
2027 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 2028 | goto err; |
8d1ebff4 | 2029 | BN_free(bn); |
dc352c19 P |
2030 | bn = NULL; |
2031 | ||
2032 | if (!TEST_int_eq(parsedecBN(&bn, "1"), 1) | |
2033 | || !TEST_BN_eq_word(bn, 1) | |
2034 | || !TEST_BN_ne_zero(bn) | |
2035 | || !TEST_BN_gt_zero(bn) | |
2036 | || !TEST_BN_ge_zero(bn) | |
2037 | || !TEST_BN_eq_one(bn) | |
2038 | || !TEST_BN_odd(bn)) | |
2039 | goto err; | |
2040 | BN_free(bn); | |
2041 | bn = NULL; | |
8d1ebff4 | 2042 | |
30bea14b | 2043 | if (!TEST_int_eq(parsedecBN(&bn, "-0"), 2) |
dc352c19 P |
2044 | || !TEST_BN_eq_zero(bn) |
2045 | || !TEST_BN_ge_zero(bn) | |
2046 | || !TEST_BN_le_zero(bn) | |
2047 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 2048 | goto err; |
8d1ebff4 | 2049 | BN_free(bn); |
dc352c19 | 2050 | bn = NULL; |
8d1ebff4 | 2051 | |
30bea14b | 2052 | if (!TEST_int_eq(parsedecBN(&bn, "42trailing garbage is ignored"), 2) |
dc352c19 P |
2053 | || !TEST_BN_abs_eq_word(bn, 42) |
2054 | || !TEST_BN_ge_zero(bn) | |
2055 | || !TEST_BN_gt_zero(bn) | |
2056 | || !TEST_BN_ne_zero(bn) | |
2057 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 2058 | goto err; |
8d1ebff4 RS |
2059 | |
2060 | st = 1; | |
fe16ae5f | 2061 | err: |
8d1ebff4 RS |
2062 | BN_free(bn); |
2063 | return st; | |
2064 | } | |
2065 | ||
31a80694 | 2066 | static int test_hex2bn(void) |
8d1ebff4 RS |
2067 | { |
2068 | BIGNUM *bn = NULL; | |
30bea14b | 2069 | int st = 0; |
8d1ebff4 | 2070 | |
30bea14b | 2071 | if (!TEST_int_eq(parseBN(&bn, "0"), 1) |
dc352c19 P |
2072 | || !TEST_BN_eq_zero(bn) |
2073 | || !TEST_BN_ge_zero(bn) | |
2074 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 2075 | goto err; |
8d1ebff4 | 2076 | BN_free(bn); |
dc352c19 | 2077 | bn = NULL; |
8d1ebff4 | 2078 | |
30bea14b | 2079 | if (!TEST_int_eq(parseBN(&bn, "256"), 3) |
dc352c19 P |
2080 | || !TEST_BN_eq_word(bn, 0x256) |
2081 | || !TEST_BN_ge_zero(bn) | |
2082 | || !TEST_BN_gt_zero(bn) | |
2083 | || !TEST_BN_ne_zero(bn) | |
2084 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 2085 | goto err; |
8d1ebff4 | 2086 | BN_free(bn); |
dc352c19 | 2087 | bn = NULL; |
8d1ebff4 | 2088 | |
30bea14b | 2089 | if (!TEST_int_eq(parseBN(&bn, "-42"), 3) |
dc352c19 P |
2090 | || !TEST_BN_abs_eq_word(bn, 0x42) |
2091 | || !TEST_BN_lt_zero(bn) | |
2092 | || !TEST_BN_le_zero(bn) | |
2093 | || !TEST_BN_ne_zero(bn) | |
2094 | || !TEST_BN_even(bn)) | |
2095 | goto err; | |
2096 | BN_free(bn); | |
2097 | bn = NULL; | |
2098 | ||
2099 | if (!TEST_int_eq(parseBN(&bn, "cb"), 2) | |
2100 | || !TEST_BN_eq_word(bn, 0xCB) | |
2101 | || !TEST_BN_ge_zero(bn) | |
2102 | || !TEST_BN_gt_zero(bn) | |
2103 | || !TEST_BN_ne_zero(bn) | |
2104 | || !TEST_BN_odd(bn)) | |
8d1ebff4 | 2105 | goto err; |
8d1ebff4 | 2106 | BN_free(bn); |
dc352c19 | 2107 | bn = NULL; |
8d1ebff4 | 2108 | |
30bea14b | 2109 | if (!TEST_int_eq(parseBN(&bn, "-0"), 2) |
dc352c19 P |
2110 | || !TEST_BN_eq_zero(bn) |
2111 | || !TEST_BN_ge_zero(bn) | |
2112 | || !TEST_BN_le_zero(bn) | |
2113 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 2114 | goto err; |
8d1ebff4 | 2115 | BN_free(bn); |
dc352c19 | 2116 | bn = NULL; |
8d1ebff4 | 2117 | |
30bea14b | 2118 | if (!TEST_int_eq(parseBN(&bn, "abctrailing garbage is ignored"), 3) |
dc352c19 P |
2119 | || !TEST_BN_eq_word(bn, 0xabc) |
2120 | || !TEST_BN_ge_zero(bn) | |
2121 | || !TEST_BN_gt_zero(bn) | |
2122 | || !TEST_BN_ne_zero(bn) | |
2123 | || !TEST_BN_even(bn)) | |
8d1ebff4 | 2124 | goto err; |
8d1ebff4 RS |
2125 | st = 1; |
2126 | ||
fe16ae5f | 2127 | err: |
8d1ebff4 RS |
2128 | BN_free(bn); |
2129 | return st; | |
2130 | } | |
2131 | ||
31a80694 | 2132 | static int test_asc2bn(void) |
8d1ebff4 | 2133 | { |
30bea14b | 2134 | BIGNUM *bn = NULL; |
8d1ebff4 RS |
2135 | int st = 0; |
2136 | ||
30bea14b | 2137 | if (!TEST_ptr(bn = BN_new())) |
8d1ebff4 | 2138 | goto err; |
8d1ebff4 | 2139 | |
30bea14b | 2140 | if (!TEST_true(BN_asc2bn(&bn, "0")) |
dc352c19 P |
2141 | || !TEST_BN_eq_zero(bn) |
2142 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 2143 | goto err; |
8d1ebff4 | 2144 | |
30bea14b | 2145 | if (!TEST_true(BN_asc2bn(&bn, "256")) |
dc352c19 P |
2146 | || !TEST_BN_eq_word(bn, 256) |
2147 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 2148 | goto err; |
8d1ebff4 | 2149 | |
30bea14b | 2150 | if (!TEST_true(BN_asc2bn(&bn, "-42")) |
dc352c19 P |
2151 | || !TEST_BN_abs_eq_word(bn, 42) |
2152 | || !TEST_BN_lt_zero(bn)) | |
8d1ebff4 | 2153 | goto err; |
8d1ebff4 | 2154 | |
30bea14b | 2155 | if (!TEST_true(BN_asc2bn(&bn, "0x1234")) |
dc352c19 P |
2156 | || !TEST_BN_eq_word(bn, 0x1234) |
2157 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 2158 | goto err; |
8d1ebff4 | 2159 | |
30bea14b | 2160 | if (!TEST_true(BN_asc2bn(&bn, "0X1234")) |
dc352c19 P |
2161 | || !TEST_BN_eq_word(bn, 0x1234) |
2162 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 2163 | goto err; |
8d1ebff4 | 2164 | |
30bea14b | 2165 | if (!TEST_true(BN_asc2bn(&bn, "-0xabcd")) |
dc352c19 P |
2166 | || !TEST_BN_abs_eq_word(bn, 0xabcd) |
2167 | || !TEST_BN_lt_zero(bn)) | |
8d1ebff4 | 2168 | goto err; |
8d1ebff4 | 2169 | |
30bea14b | 2170 | if (!TEST_true(BN_asc2bn(&bn, "-0")) |
dc352c19 P |
2171 | || !TEST_BN_eq_zero(bn) |
2172 | || !TEST_BN_ge_zero(bn)) | |
30bea14b RS |
2173 | goto err; |
2174 | ||
2175 | if (!TEST_true(BN_asc2bn(&bn, "123trailing garbage is ignored")) | |
dc352c19 P |
2176 | || !TEST_BN_eq_word(bn, 123) |
2177 | || !TEST_BN_ge_zero(bn)) | |
8d1ebff4 | 2178 | goto err; |
8d1ebff4 RS |
2179 | |
2180 | st = 1; | |
fe16ae5f | 2181 | err: |
8d1ebff4 RS |
2182 | BN_free(bn); |
2183 | return st; | |
2184 | } | |
2185 | ||
2186 | static const MPITEST kMPITests[] = { | |
2187 | {"0", "\x00\x00\x00\x00", 4}, | |
2188 | {"1", "\x00\x00\x00\x01\x01", 5}, | |
2189 | {"-1", "\x00\x00\x00\x01\x81", 5}, | |
2190 | {"128", "\x00\x00\x00\x02\x00\x80", 6}, | |
2191 | {"256", "\x00\x00\x00\x02\x01\x00", 6}, | |
2192 | {"-256", "\x00\x00\x00\x02\x81\x00", 6}, | |
2193 | }; | |
2194 | ||
30bea14b | 2195 | static int test_mpi(int i) |
8d1ebff4 RS |
2196 | { |
2197 | uint8_t scratch[8]; | |
30bea14b | 2198 | const MPITEST *test = &kMPITests[i]; |
8d1ebff4 | 2199 | size_t mpi_len, mpi_len2; |
30bea14b | 2200 | BIGNUM *bn = NULL; |
8d1ebff4 RS |
2201 | BIGNUM *bn2 = NULL; |
2202 | int st = 0; | |
2203 | ||
30bea14b RS |
2204 | if (!TEST_ptr(bn = BN_new()) |
2205 | || !TEST_true(BN_asc2bn(&bn, test->base10))) | |
2206 | goto err; | |
2207 | mpi_len = BN_bn2mpi(bn, NULL); | |
2208 | if (!TEST_size_t_le(mpi_len, sizeof(scratch))) | |
2209 | goto err; | |
8d1ebff4 | 2210 | |
30bea14b RS |
2211 | if (!TEST_size_t_eq(mpi_len2 = BN_bn2mpi(bn, scratch), mpi_len) |
2212 | || !TEST_mem_eq(test->mpi, test->mpi_len, scratch, mpi_len)) | |
2213 | goto err; | |
8d1ebff4 | 2214 | |
30bea14b RS |
2215 | if (!TEST_ptr(bn2 = BN_mpi2bn(scratch, mpi_len, NULL))) |
2216 | goto err; | |
8d1ebff4 | 2217 | |
dc352c19 | 2218 | if (!TEST_BN_eq(bn, bn2)) { |
8d1ebff4 | 2219 | BN_free(bn2); |
30bea14b | 2220 | goto err; |
8d1ebff4 | 2221 | } |
30bea14b | 2222 | BN_free(bn2); |
8d1ebff4 RS |
2223 | |
2224 | st = 1; | |
fe16ae5f | 2225 | err: |
8d1ebff4 RS |
2226 | BN_free(bn); |
2227 | return st; | |
0f113f3e | 2228 | } |
bdec3c53 | 2229 | |
15192335 RL |
2230 | static int test_bin2zero(void) |
2231 | { | |
2232 | unsigned char input[] = { 0 }; | |
2233 | BIGNUM *zbn = NULL; | |
2234 | int ret = 0; | |
2235 | ||
2236 | if (!TEST_ptr(zbn = BN_new())) | |
2237 | goto err; | |
2238 | ||
2239 | #define zerotest(fn) \ | |
2240 | if (!TEST_ptr(fn(input, 1, zbn)) \ | |
2241 | || !TEST_true(BN_is_zero(zbn)) \ | |
2242 | || !TEST_ptr(fn(input, 0, zbn)) \ | |
2243 | || !TEST_true(BN_is_zero(zbn)) \ | |
2244 | || !TEST_ptr(fn(NULL, 0, zbn)) \ | |
2245 | || !TEST_true(BN_is_zero(zbn))) \ | |
2246 | goto err | |
2247 | ||
2248 | zerotest(BN_bin2bn); | |
2249 | zerotest(BN_signed_bin2bn); | |
2250 | zerotest(BN_lebin2bn); | |
2251 | zerotest(BN_signed_lebin2bn); | |
2252 | #undef zerotest | |
2253 | ||
2254 | ret = 1; | |
2255 | err: | |
2256 | BN_free(zbn); | |
2257 | return ret; | |
2258 | } | |
2259 | ||
c9466f38 RL |
2260 | static int test_bin2bn_lengths(void) |
2261 | { | |
2262 | unsigned char input[] = { 1, 2 }; | |
2263 | BIGNUM *bn_be = NULL, *bn_expected_be = NULL; | |
2264 | BIGNUM *bn_le = NULL, *bn_expected_le = NULL; | |
2265 | int ret = 0; | |
2266 | ||
2267 | if (!TEST_ptr(bn_be = BN_new()) | |
2268 | || !TEST_ptr(bn_expected_be = BN_new()) | |
2269 | || !TEST_true(BN_set_word(bn_expected_be, 0x102)) | |
2270 | || !TEST_ptr(bn_le = BN_new()) | |
2271 | || !TEST_ptr(bn_expected_le = BN_new()) | |
2272 | || !TEST_true(BN_set_word(bn_expected_le, 0x201))) | |
2273 | goto err; | |
2274 | ||
2275 | #define lengthtest(fn, e) \ | |
2276 | if (!TEST_ptr_null(fn(input, -1, bn_##e)) \ | |
2277 | || !TEST_ptr(fn(input, 0, bn_##e)) \ | |
2278 | || !TEST_true(BN_is_zero(bn_##e)) \ | |
2279 | || !TEST_ptr(fn(input, 2, bn_##e)) \ | |
2280 | || !TEST_int_eq(BN_cmp(bn_##e, bn_expected_##e), 0)) \ | |
2281 | goto err | |
2282 | ||
2283 | lengthtest(BN_bin2bn, be); | |
2284 | lengthtest(BN_signed_bin2bn, be); | |
2285 | lengthtest(BN_lebin2bn, le); | |
2286 | lengthtest(BN_signed_lebin2bn, le); | |
2287 | #undef lengthtest | |
2288 | ||
2289 | ret = 1; | |
2290 | err: | |
2291 | BN_free(bn_be); | |
2292 | BN_free(bn_expected_be); | |
2293 | BN_free(bn_le); | |
2294 | BN_free(bn_expected_le); | |
2295 | return ret; | |
2296 | } | |
2297 | ||
31a80694 | 2298 | static int test_rand(void) |
0f113f3e | 2299 | { |
30bea14b | 2300 | BIGNUM *bn = NULL; |
8d1ebff4 | 2301 | int st = 0; |
0f113f3e | 2302 | |
30bea14b | 2303 | if (!TEST_ptr(bn = BN_new())) |
8d1ebff4 | 2304 | return 0; |
0f113f3e | 2305 | |
30bea14b RS |
2306 | /* Test BN_rand for degenerate cases with |top| and |bottom| parameters. */ |
2307 | if (!TEST_false(BN_rand(bn, 0, 0 /* top */ , 0 /* bottom */ )) | |
2308 | || !TEST_false(BN_rand(bn, 0, 1 /* top */ , 1 /* bottom */ )) | |
2309 | || !TEST_true(BN_rand(bn, 1, 0 /* top */ , 0 /* bottom */ )) | |
dc352c19 | 2310 | || !TEST_BN_eq_one(bn) |
30bea14b RS |
2311 | || !TEST_false(BN_rand(bn, 1, 1 /* top */ , 0 /* bottom */ )) |
2312 | || !TEST_true(BN_rand(bn, 1, -1 /* top */ , 1 /* bottom */ )) | |
dc352c19 | 2313 | || !TEST_BN_eq_one(bn) |
30bea14b | 2314 | || !TEST_true(BN_rand(bn, 2, 1 /* top */ , 0 /* bottom */ )) |
dc352c19 | 2315 | || !TEST_BN_eq_word(bn, 3)) |
8d1ebff4 | 2316 | goto err; |
0f113f3e | 2317 | |
8d1ebff4 | 2318 | st = 1; |
fe16ae5f | 2319 | err: |
8d1ebff4 RS |
2320 | BN_free(bn); |
2321 | return st; | |
2322 | } | |
2323 | ||
bb5b3e6d P |
2324 | /* |
2325 | * Run some statistical tests to provide a degree confidence that the | |
5d2f3e4a P |
2326 | * BN_rand_range() function works as expected. The test cases and |
2327 | * critical values are generated by the bn_rand_range script. | |
bb5b3e6d | 2328 | * |
5d2f3e4a P |
2329 | * Each individual test is a Chi^2 goodness of fit for a specified number |
2330 | * of samples and range. The samples are assumed to be independent and | |
2331 | * that they are from a discrete uniform distribution. | |
bb5b3e6d | 2332 | * |
5d2f3e4a P |
2333 | * Some of these individual tests are expected to fail, the success/failure |
2334 | * of each is an independent Bernoulli trial. The number of such successes | |
2335 | * will form a binomial distribution. The count of the successes is compared | |
2336 | * against a precomputed critical value to determine the overall outcome. | |
bb5b3e6d | 2337 | */ |
5d2f3e4a | 2338 | struct rand_range_case { |
bb5b3e6d P |
2339 | unsigned int range; |
2340 | unsigned int iterations; | |
2341 | double critical; | |
bb5b3e6d P |
2342 | }; |
2343 | ||
5d2f3e4a P |
2344 | #include "bn_rand_range.h" |
2345 | ||
2346 | static int test_rand_range_single(size_t n) | |
bb5b3e6d P |
2347 | { |
2348 | const unsigned int range = rand_range_cases[n].range; | |
2349 | const unsigned int iterations = rand_range_cases[n].iterations; | |
2350 | const double critical = rand_range_cases[n].critical; | |
2351 | const double expected = iterations / (double)range; | |
2352 | double sum = 0; | |
2353 | BIGNUM *rng = NULL, *val = NULL; | |
2354 | size_t *counts; | |
2355 | unsigned int i, v; | |
2356 | int res = 0; | |
2357 | ||
2358 | if (!TEST_ptr(counts = OPENSSL_zalloc(sizeof(*counts) * range)) | |
2359 | || !TEST_ptr(rng = BN_new()) | |
2360 | || !TEST_ptr(val = BN_new()) | |
2361 | || !TEST_true(BN_set_word(rng, range))) | |
2362 | goto err; | |
2363 | for (i = 0; i < iterations; i++) { | |
2364 | if (!TEST_true(BN_rand_range(val, rng)) | |
2365 | || !TEST_uint_lt(v = (unsigned int)BN_get_word(val), range)) | |
2366 | goto err; | |
2367 | counts[v]++; | |
2368 | } | |
2369 | ||
bb5b3e6d P |
2370 | for (i = 0; i < range; i++) { |
2371 | const double delta = counts[i] - expected; | |
2372 | sum += delta * delta; | |
2373 | } | |
2374 | sum /= expected; | |
bb5b3e6d | 2375 | |
5d2f3e4a P |
2376 | if (sum > critical) { |
2377 | TEST_info("Chi^2 test negative %.4f > %4.f", sum, critical); | |
2378 | TEST_note("test case %zu range %u iterations %u", n + 1, range, | |
2379 | iterations); | |
2380 | goto err; | |
2381 | } | |
2382 | ||
2383 | res = 1; | |
bb5b3e6d P |
2384 | err: |
2385 | BN_free(rng); | |
2386 | BN_free(val); | |
2387 | OPENSSL_free(counts); | |
2388 | return res; | |
2389 | } | |
2390 | ||
5d2f3e4a P |
2391 | static int test_rand_range(void) |
2392 | { | |
2393 | int n_success = 0; | |
2394 | size_t i; | |
2395 | ||
2396 | for (i = 0; i < OSSL_NELEM(rand_range_cases); i++) | |
2397 | n_success += test_rand_range_single(i); | |
2398 | if (TEST_int_ge(n_success, binomial_critical)) | |
2399 | return 1; | |
79c44b4e | 2400 | TEST_note("This test is expected to fail by chance 0.01%% of the time."); |
5d2f3e4a P |
2401 | return 0; |
2402 | } | |
2403 | ||
31a80694 | 2404 | static int test_negzero(void) |
8d1ebff4 | 2405 | { |
30bea14b | 2406 | BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL; |
8d1ebff4 RS |
2407 | BIGNUM *numerator = NULL, *denominator = NULL; |
2408 | int consttime, st = 0; | |
2409 | ||
30bea14b RS |
2410 | if (!TEST_ptr(a = BN_new()) |
2411 | || !TEST_ptr(b = BN_new()) | |
2412 | || !TEST_ptr(c = BN_new()) | |
2413 | || !TEST_ptr(d = BN_new())) | |
8d1ebff4 RS |
2414 | goto err; |
2415 | ||
2416 | /* Test that BN_mul never gives negative zero. */ | |
30bea14b | 2417 | if (!TEST_true(BN_set_word(a, 1))) |
8d1ebff4 RS |
2418 | goto err; |
2419 | BN_set_negative(a, 1); | |
2420 | BN_zero(b); | |
30bea14b | 2421 | if (!TEST_true(BN_mul(c, a, b, ctx))) |
8d1ebff4 | 2422 | goto err; |
dc352c19 P |
2423 | if (!TEST_BN_eq_zero(c) |
2424 | || !TEST_BN_ge_zero(c)) | |
8d1ebff4 | 2425 | goto err; |
8d1ebff4 RS |
2426 | |
2427 | for (consttime = 0; consttime < 2; consttime++) { | |
30bea14b RS |
2428 | if (!TEST_ptr(numerator = BN_new()) |
2429 | || !TEST_ptr(denominator = BN_new())) | |
0f113f3e | 2430 | goto err; |
8d1ebff4 RS |
2431 | if (consttime) { |
2432 | BN_set_flags(numerator, BN_FLG_CONSTTIME); | |
2433 | BN_set_flags(denominator, BN_FLG_CONSTTIME); | |
2434 | } | |
2435 | /* Test that BN_div never gives negative zero in the quotient. */ | |
30bea14b RS |
2436 | if (!TEST_true(BN_set_word(numerator, 1)) |
2437 | || !TEST_true(BN_set_word(denominator, 2))) | |
0f113f3e | 2438 | goto err; |
8d1ebff4 | 2439 | BN_set_negative(numerator, 1); |
30bea14b | 2440 | if (!TEST_true(BN_div(a, b, numerator, denominator, ctx)) |
dc352c19 P |
2441 | || !TEST_BN_eq_zero(a) |
2442 | || !TEST_BN_ge_zero(a)) | |
0f113f3e | 2443 | goto err; |
0f113f3e | 2444 | |
8d1ebff4 | 2445 | /* Test that BN_div never gives negative zero in the remainder. */ |
30bea14b RS |
2446 | if (!TEST_true(BN_set_word(denominator, 1)) |
2447 | || !TEST_true(BN_div(a, b, numerator, denominator, ctx)) | |
dc352c19 P |
2448 | || !TEST_BN_eq_zero(b) |
2449 | || !TEST_BN_ge_zero(b)) | |
0f113f3e | 2450 | goto err; |
8d1ebff4 RS |
2451 | BN_free(numerator); |
2452 | BN_free(denominator); | |
2453 | numerator = denominator = NULL; | |
2454 | } | |
0f113f3e | 2455 | |
8d1ebff4 RS |
2456 | /* Test that BN_set_negative will not produce a negative zero. */ |
2457 | BN_zero(a); | |
2458 | BN_set_negative(a, 1); | |
30bea14b | 2459 | if (BN_is_negative(a)) |
8d1ebff4 | 2460 | goto err; |
8d1ebff4 | 2461 | st = 1; |
30bea14b | 2462 | |
fe16ae5f | 2463 | err: |
23a1d5e9 RS |
2464 | BN_free(a); |
2465 | BN_free(b); | |
8d1ebff4 RS |
2466 | BN_free(c); |
2467 | BN_free(d); | |
2468 | BN_free(numerator); | |
2469 | BN_free(denominator); | |
2470 | return st; | |
0f113f3e | 2471 | } |
c7820896 | 2472 | |
31a80694 | 2473 | static int test_badmod(void) |
0f113f3e | 2474 | { |
30bea14b RS |
2475 | BIGNUM *a = NULL, *b = NULL, *zero = NULL; |
2476 | BN_MONT_CTX *mont = NULL; | |
8d1ebff4 | 2477 | int st = 0; |
0f113f3e | 2478 | |
30bea14b RS |
2479 | if (!TEST_ptr(a = BN_new()) |
2480 | || !TEST_ptr(b = BN_new()) | |
2481 | || !TEST_ptr(zero = BN_new()) | |
2482 | || !TEST_ptr(mont = BN_MONT_CTX_new())) | |
0f113f3e | 2483 | goto err; |
8d1ebff4 | 2484 | BN_zero(zero); |
0f113f3e | 2485 | |
30bea14b | 2486 | if (!TEST_false(BN_div(a, b, BN_value_one(), zero, ctx))) |
8d1ebff4 | 2487 | goto err; |
8d1ebff4 | 2488 | ERR_clear_error(); |
0f113f3e | 2489 | |
30bea14b | 2490 | if (!TEST_false(BN_mod_mul(a, BN_value_one(), BN_value_one(), zero, ctx))) |
8d1ebff4 | 2491 | goto err; |
8d1ebff4 | 2492 | ERR_clear_error(); |
0f113f3e | 2493 | |
30bea14b | 2494 | if (!TEST_false(BN_mod_exp(a, BN_value_one(), BN_value_one(), zero, ctx))) |
8d1ebff4 | 2495 | goto err; |
8d1ebff4 | 2496 | ERR_clear_error(); |
0f113f3e | 2497 | |
30bea14b RS |
2498 | if (!TEST_false(BN_mod_exp_mont(a, BN_value_one(), BN_value_one(), |
2499 | zero, ctx, NULL))) | |
8d1ebff4 | 2500 | goto err; |
8d1ebff4 | 2501 | ERR_clear_error(); |
0f113f3e | 2502 | |
30bea14b | 2503 | if (!TEST_false(BN_mod_exp_mont_consttime(a, BN_value_one(), BN_value_one(), |
fe16ae5f | 2504 | zero, ctx, NULL))) |
8d1ebff4 | 2505 | goto err; |
8d1ebff4 | 2506 | ERR_clear_error(); |
0f113f3e | 2507 | |
30bea14b | 2508 | if (!TEST_false(BN_MONT_CTX_set(mont, zero, ctx))) |
8d1ebff4 | 2509 | goto err; |
8d1ebff4 | 2510 | ERR_clear_error(); |
0f113f3e | 2511 | |
8d1ebff4 | 2512 | /* Some operations also may not be used with an even modulus. */ |
30bea14b | 2513 | if (!TEST_true(BN_set_word(b, 16))) |
8d1ebff4 | 2514 | goto err; |
0f113f3e | 2515 | |
30bea14b | 2516 | if (!TEST_false(BN_MONT_CTX_set(mont, b, ctx))) |
8d1ebff4 | 2517 | goto err; |
8d1ebff4 | 2518 | ERR_clear_error(); |
0f113f3e | 2519 | |
30bea14b RS |
2520 | if (!TEST_false(BN_mod_exp_mont(a, BN_value_one(), BN_value_one(), |
2521 | b, ctx, NULL))) | |
8d1ebff4 | 2522 | goto err; |
8d1ebff4 RS |
2523 | ERR_clear_error(); |
2524 | ||
30bea14b | 2525 | if (!TEST_false(BN_mod_exp_mont_consttime(a, BN_value_one(), BN_value_one(), |
fe16ae5f | 2526 | b, ctx, NULL))) |
8d1ebff4 | 2527 | goto err; |
8d1ebff4 RS |
2528 | ERR_clear_error(); |
2529 | ||
2530 | st = 1; | |
fe16ae5f | 2531 | err: |
23a1d5e9 | 2532 | BN_free(a); |
8d1ebff4 RS |
2533 | BN_free(b); |
2534 | BN_free(zero); | |
2535 | BN_MONT_CTX_free(mont); | |
2536 | return st; | |
0f113f3e MC |
2537 | } |
2538 | ||
31a80694 | 2539 | static int test_expmodzero(void) |
0f113f3e | 2540 | { |
30bea14b | 2541 | BIGNUM *a = NULL, *r = NULL, *zero = NULL; |
8d1ebff4 | 2542 | int st = 0; |
0f113f3e | 2543 | |
30bea14b RS |
2544 | if (!TEST_ptr(zero = BN_new()) |
2545 | || !TEST_ptr(a = BN_new()) | |
2546 | || !TEST_ptr(r = BN_new())) | |
0f113f3e | 2547 | goto err; |
8d1ebff4 RS |
2548 | BN_zero(zero); |
2549 | ||
30bea14b | 2550 | if (!TEST_true(BN_mod_exp(r, a, zero, BN_value_one(), NULL)) |
dc352c19 | 2551 | || !TEST_BN_eq_zero(r) |
30bea14b RS |
2552 | || !TEST_true(BN_mod_exp_mont(r, a, zero, BN_value_one(), |
2553 | NULL, NULL)) | |
dc352c19 | 2554 | || !TEST_BN_eq_zero(r) |
30bea14b RS |
2555 | || !TEST_true(BN_mod_exp_mont_consttime(r, a, zero, |
2556 | BN_value_one(), | |
2557 | NULL, NULL)) | |
dc352c19 | 2558 | || !TEST_BN_eq_zero(r) |
30bea14b RS |
2559 | || !TEST_true(BN_mod_exp_mont_word(r, 42, zero, |
2560 | BN_value_one(), NULL, NULL)) | |
dc352c19 | 2561 | || !TEST_BN_eq_zero(r)) |
0f113f3e | 2562 | goto err; |
0f113f3e | 2563 | |
8d1ebff4 | 2564 | st = 1; |
fe16ae5f | 2565 | err: |
8d1ebff4 RS |
2566 | BN_free(zero); |
2567 | BN_free(a); | |
2568 | BN_free(r); | |
2569 | return st; | |
0f113f3e MC |
2570 | } |
2571 | ||
adf65243 MC |
2572 | static int test_expmodone(void) |
2573 | { | |
2574 | int ret = 0, i; | |
2575 | BIGNUM *r = BN_new(); | |
2576 | BIGNUM *a = BN_new(); | |
2577 | BIGNUM *p = BN_new(); | |
2578 | BIGNUM *m = BN_new(); | |
2579 | ||
2580 | if (!TEST_ptr(r) | |
2581 | || !TEST_ptr(a) | |
2582 | || !TEST_ptr(p) | |
2583 | || !TEST_ptr(p) | |
2584 | || !TEST_ptr(m) | |
2585 | || !TEST_true(BN_set_word(a, 1)) | |
2586 | || !TEST_true(BN_set_word(p, 0)) | |
2587 | || !TEST_true(BN_set_word(m, 1))) | |
2588 | goto err; | |
2589 | ||
2590 | /* Calculate r = 1 ^ 0 mod 1, and check the result is always 0 */ | |
2591 | for (i = 0; i < 2; i++) { | |
2592 | if (!TEST_true(BN_mod_exp(r, a, p, m, NULL)) | |
2593 | || !TEST_BN_eq_zero(r) | |
2594 | || !TEST_true(BN_mod_exp_mont(r, a, p, m, NULL, NULL)) | |
2595 | || !TEST_BN_eq_zero(r) | |
2596 | || !TEST_true(BN_mod_exp_mont_consttime(r, a, p, m, NULL, NULL)) | |
2597 | || !TEST_BN_eq_zero(r) | |
2598 | || !TEST_true(BN_mod_exp_mont_word(r, 1, p, m, NULL, NULL)) | |
2599 | || !TEST_BN_eq_zero(r) | |
2600 | || !TEST_true(BN_mod_exp_simple(r, a, p, m, NULL)) | |
2601 | || !TEST_BN_eq_zero(r) | |
2602 | || !TEST_true(BN_mod_exp_recp(r, a, p, m, NULL)) | |
2603 | || !TEST_BN_eq_zero(r)) | |
2604 | goto err; | |
2605 | /* Repeat for r = 1 ^ 0 mod -1 */ | |
2606 | if (i == 0) | |
2607 | BN_set_negative(m, 1); | |
2608 | } | |
2609 | ||
2610 | ret = 1; | |
fe16ae5f | 2611 | err: |
adf65243 MC |
2612 | BN_free(r); |
2613 | BN_free(a); | |
2614 | BN_free(p); | |
2615 | BN_free(m); | |
2616 | return ret; | |
2617 | } | |
2618 | ||
291f616c | 2619 | static int test_smallprime(int kBits) |
8ff70f33 | 2620 | { |
30bea14b | 2621 | BIGNUM *r; |
8d1ebff4 | 2622 | int st = 0; |
8ff70f33 | 2623 | |
291f616c BE |
2624 | if (!TEST_ptr(r = BN_new())) |
2625 | goto err; | |
2626 | ||
2627 | if (kBits <= 1) { | |
2628 | if (!TEST_false(BN_generate_prime_ex(r, kBits, 0, | |
2629 | NULL, NULL, NULL))) | |
2630 | goto err; | |
2631 | } else { | |
2632 | if (!TEST_true(BN_generate_prime_ex(r, kBits, 0, | |
2633 | NULL, NULL, NULL)) | |
2634 | || !TEST_int_eq(BN_num_bits(r), kBits)) | |
2635 | goto err; | |
2636 | } | |
2637 | ||
2638 | st = 1; | |
2639 | err: | |
2640 | BN_free(r); | |
2641 | return st; | |
2642 | } | |
2643 | ||
2644 | static int test_smallsafeprime(int kBits) | |
2645 | { | |
2646 | BIGNUM *r; | |
2647 | int st = 0; | |
2648 | ||
2649 | if (!TEST_ptr(r = BN_new())) | |
8d1ebff4 | 2650 | goto err; |
8ff70f33 | 2651 | |
291f616c BE |
2652 | if (kBits <= 5 && kBits != 3) { |
2653 | if (!TEST_false(BN_generate_prime_ex(r, kBits, 1, | |
2654 | NULL, NULL, NULL))) | |
2655 | goto err; | |
2656 | } else { | |
2657 | if (!TEST_true(BN_generate_prime_ex(r, kBits, 1, | |
2658 | NULL, NULL, NULL)) | |
2659 | || !TEST_int_eq(BN_num_bits(r), kBits)) | |
2660 | goto err; | |
2661 | } | |
2662 | ||
8d1ebff4 | 2663 | st = 1; |
fe16ae5f | 2664 | err: |
8d1ebff4 RS |
2665 | BN_free(r); |
2666 | return st; | |
2667 | } | |
8ff70f33 | 2668 | |
7d79d13a SL |
2669 | static int primes[] = { 2, 3, 5, 7, 17863 }; |
2670 | ||
2671 | static int test_is_prime(int i) | |
6e64c560 AL |
2672 | { |
2673 | int ret = 0; | |
30bea14b | 2674 | BIGNUM *r = NULL; |
7d79d13a | 2675 | int trial; |
6e64c560 | 2676 | |
7d79d13a | 2677 | if (!TEST_ptr(r = BN_new())) |
6e64c560 | 2678 | goto err; |
6e64c560 | 2679 | |
7d79d13a SL |
2680 | for (trial = 0; trial <= 1; ++trial) { |
2681 | if (!TEST_true(BN_set_word(r, primes[i])) | |
42619397 | 2682 | || !TEST_int_eq(BN_check_prime(r, ctx, NULL), |
7d79d13a SL |
2683 | 1)) |
2684 | goto err; | |
2685 | } | |
2686 | ||
6e64c560 | 2687 | ret = 1; |
fe16ae5f | 2688 | err: |
7d79d13a SL |
2689 | BN_free(r); |
2690 | return ret; | |
2691 | } | |
6e64c560 | 2692 | |
7d79d13a SL |
2693 | static int not_primes[] = { -1, 0, 1, 4 }; |
2694 | ||
2695 | static int test_not_prime(int i) | |
2696 | { | |
2697 | int ret = 0; | |
2698 | BIGNUM *r = NULL; | |
2699 | int trial; | |
2700 | ||
2701 | if (!TEST_ptr(r = BN_new())) | |
2702 | goto err; | |
2703 | ||
2704 | for (trial = 0; trial <= 1; ++trial) { | |
2705 | if (!TEST_true(BN_set_word(r, not_primes[i])) | |
42619397 | 2706 | || !TEST_false(BN_check_prime(r, ctx, NULL))) |
7d79d13a SL |
2707 | goto err; |
2708 | } | |
2709 | ||
2710 | ret = 1; | |
fe16ae5f | 2711 | err: |
6e64c560 AL |
2712 | BN_free(r); |
2713 | return ret; | |
2714 | } | |
2715 | ||
fe16ae5f NT |
2716 | static int test_ctx_set_ct_flag(BN_CTX *c) |
2717 | { | |
2718 | int st = 0; | |
2719 | size_t i; | |
2720 | BIGNUM *b[15]; | |
2721 | ||
2722 | BN_CTX_start(c); | |
2723 | for (i = 0; i < OSSL_NELEM(b); i++) { | |
2724 | if (!TEST_ptr(b[i] = BN_CTX_get(c))) | |
2725 | goto err; | |
2726 | if (i % 2 == 1) | |
2727 | BN_set_flags(b[i], BN_FLG_CONSTTIME); | |
2728 | } | |
2729 | ||
2730 | st = 1; | |
2731 | err: | |
2732 | BN_CTX_end(c); | |
2733 | return st; | |
2734 | } | |
2735 | ||
2736 | static int test_ctx_check_ct_flag(BN_CTX *c) | |
2737 | { | |
2738 | int st = 0; | |
2739 | size_t i; | |
2740 | BIGNUM *b[30]; | |
2741 | ||
2742 | BN_CTX_start(c); | |
2743 | for (i = 0; i < OSSL_NELEM(b); i++) { | |
2744 | if (!TEST_ptr(b[i] = BN_CTX_get(c))) | |
2745 | goto err; | |
2746 | if (!TEST_false(BN_get_flags(b[i], BN_FLG_CONSTTIME))) | |
2747 | goto err; | |
2748 | } | |
2749 | ||
2750 | st = 1; | |
2751 | err: | |
2752 | BN_CTX_end(c); | |
2753 | return st; | |
2754 | } | |
2755 | ||
2756 | static int test_ctx_consttime_flag(void) | |
2757 | { | |
2758 | /*- | |
2759 | * The constant-time flag should not "leak" among BN_CTX frames: | |
2760 | * | |
2761 | * - test_ctx_set_ct_flag() starts a frame in the given BN_CTX and | |
2762 | * sets the BN_FLG_CONSTTIME flag on some of the BIGNUMs obtained | |
2763 | * from the frame before ending it. | |
2764 | * - test_ctx_check_ct_flag() then starts a new frame and gets a | |
2765 | * number of BIGNUMs from it. In absence of leaks, none of the | |
2766 | * BIGNUMs in the new frame should have BN_FLG_CONSTTIME set. | |
2767 | * | |
2768 | * In actual BN_CTX usage inside libcrypto the leak could happen at | |
2769 | * any depth level in the BN_CTX stack, with varying results | |
2770 | * depending on the patterns of sibling trees of nested function | |
2771 | * calls sharing the same BN_CTX object, and the effect of | |
2772 | * unintended BN_FLG_CONSTTIME on the called BN_* functions. | |
2773 | * | |
2774 | * This simple unit test abstracts away this complexity and verifies | |
2775 | * that the leak does not happen between two sibling functions | |
2776 | * sharing the same BN_CTX object at the same level of nesting. | |
2777 | * | |
2778 | */ | |
2779 | BN_CTX *nctx = NULL; | |
2780 | BN_CTX *sctx = NULL; | |
2781 | size_t i = 0; | |
2782 | int st = 0; | |
2783 | ||
2784 | if (!TEST_ptr(nctx = BN_CTX_new()) | |
2785 | || !TEST_ptr(sctx = BN_CTX_secure_new())) | |
2786 | goto err; | |
2787 | ||
2788 | for (i = 0; i < 2; i++) { | |
2789 | BN_CTX *c = i == 0 ? nctx : sctx; | |
2790 | if (!TEST_true(test_ctx_set_ct_flag(c)) | |
2791 | || !TEST_true(test_ctx_check_ct_flag(c))) | |
2792 | goto err; | |
2793 | } | |
2794 | ||
2795 | st = 1; | |
2796 | err: | |
2797 | BN_CTX_free(nctx); | |
2798 | BN_CTX_free(sctx); | |
2799 | return st; | |
2800 | } | |
2801 | ||
dd1d7bcb | 2802 | static int test_coprime(void) |
2803 | { | |
2804 | BIGNUM *a = NULL, *b = NULL; | |
2805 | int ret = 0; | |
2806 | ||
2807 | ret = TEST_ptr(a = BN_new()) | |
2808 | && TEST_ptr(b = BN_new()) | |
2809 | && TEST_true(BN_set_word(a, 66)) | |
2810 | && TEST_true(BN_set_word(b, 99)) | |
2811 | && TEST_int_eq(BN_are_coprime(a, b, ctx), 0) | |
2812 | && TEST_int_eq(BN_are_coprime(b, a, ctx), 0) | |
2813 | && TEST_true(BN_set_word(a, 67)) | |
2814 | && TEST_int_eq(BN_are_coprime(a, b, ctx), 1) | |
2815 | && TEST_int_eq(BN_are_coprime(b, a, ctx), 1); | |
2816 | BN_free(a); | |
2817 | BN_free(b); | |
2818 | return ret; | |
2819 | } | |
2820 | ||
b75d6310 CPG |
2821 | static int test_gcd_prime(void) |
2822 | { | |
2823 | BIGNUM *a = NULL, *b = NULL, *gcd = NULL; | |
2824 | int i, st = 0; | |
2825 | ||
2826 | if (!TEST_ptr(a = BN_new()) | |
2827 | || !TEST_ptr(b = BN_new()) | |
2828 | || !TEST_ptr(gcd = BN_new())) | |
2829 | goto err; | |
2830 | ||
2831 | if (!TEST_true(BN_generate_prime_ex(a, 1024, 0, NULL, NULL, NULL))) | |
2832 | goto err; | |
dd1d7bcb | 2833 | for (i = 0; i < NUM_PRIME_TESTS; i++) { |
b75d6310 CPG |
2834 | if (!TEST_true(BN_generate_prime_ex(b, 1024, 0, |
2835 | NULL, NULL, NULL)) | |
2836 | || !TEST_true(BN_gcd(gcd, a, b, ctx)) | |
dd1d7bcb | 2837 | || !TEST_true(BN_is_one(gcd)) |
2838 | || !TEST_true(BN_are_coprime(a, b, ctx))) | |
b75d6310 CPG |
2839 | goto err; |
2840 | } | |
2841 | ||
2842 | st = 1; | |
2843 | err: | |
2844 | BN_free(a); | |
2845 | BN_free(b); | |
2846 | BN_free(gcd); | |
2847 | return st; | |
2848 | } | |
2849 | ||
18d42d8d BE |
2850 | typedef struct mod_exp_test_st |
2851 | { | |
2852 | const char *base; | |
2853 | const char *exp; | |
2854 | const char *mod; | |
2855 | const char *res; | |
2856 | } MOD_EXP_TEST; | |
2857 | ||
2858 | static const MOD_EXP_TEST ModExpTests[] = { | |
2859 | /* original test vectors for rsaz_512_sqr bug, by OSS-Fuzz */ | |
2860 | { | |
2861 | "1166180238001879113042182292626169621106255558914000595999312084" | |
2862 | "4627946820899490684928760491249738643524880720584249698100907201" | |
2863 | "002086675047927600340800371", | |
2864 | "8000000000000000000000000000000000000000000000000000000000000000" | |
2865 | "0000000000000000000000000000000000000000000000000000000000000000" | |
2866 | "00000000", | |
2867 | "1340780792684523720980737645613191762604395855615117867483316354" | |
2868 | "3294276330515137663421134775482798690129946803802212663956180562" | |
2869 | "088664022929883876655300863", | |
2870 | "8243904058268085430037326628480645845409758077568738532059032482" | |
2871 | "8294114415890603594730158120426756266457928475330450251339773498" | |
2872 | "26758407619521544102068438" | |
2873 | }, | |
2874 | { | |
2875 | "4974270041410803822078866696159586946995877618987010219312844726" | |
2876 | "0284386121835740784990869050050504348861513337232530490826340663" | |
2877 | "197278031692737429054", | |
2878 | "4974270041410803822078866696159586946995877428188754995041148539" | |
2879 | "1663243362592271353668158565195557417149981094324650322556843202" | |
2880 | "946445882670777892608", | |
2881 | "1340780716511420227215592830971452482815377482627251725537099028" | |
2882 | "4429769497230131760206012644403029349547320953206103351725462999" | |
2883 | "947509743623340557059752191", | |
2884 | "5296244594780707015616522701706118082963369547253192207884519362" | |
2885 | "1767869984947542695665420219028522815539559194793619684334900442" | |
2886 | "49304558011362360473525933" | |
2887 | }, | |
2888 | /* test vectors for rsaz_512_srq bug, with rcx/rbx=1 */ | |
2889 | { /* between first and second iteration */ | |
2890 | "5148719036160389201525610950887605325980251964889646556085286545" | |
2891 | "3931548809178823413169359635978762036512397113080988070677858033" | |
2892 | "36463909753993540214027190", | |
2893 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2894 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2895 | "05973284973216824503042158", | |
2896 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2897 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2898 | "05973284973216824503042159", | |
2899 | "1" | |
2900 | }, | |
2901 | { /* between second and third iteration */ | |
2902 | "8908340854353752577419678771330460827942371434853054158622636544" | |
2903 | "8151360109722890949471912566649465436296659601091730745087014189" | |
2904 | "2672764191218875181826063", | |
2905 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2906 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2907 | "05973284973216824503042158", | |
2908 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2909 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2910 | "05973284973216824503042159", | |
2911 | "1" | |
2912 | }, | |
2913 | { /* between third and fourth iteration */ | |
2914 | "3427446396505596330634350984901719674479522569002785244080234738" | |
2915 | "4288743635435746136297299366444548736533053717416735379073185344" | |
2916 | "26985272974404612945608761", | |
2917 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2918 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2919 | "05973284973216824503042158", | |
2920 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2921 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2922 | "05973284973216824503042159", | |
2923 | "1" | |
2924 | }, | |
2925 | { /* between fourth and fifth iteration */ | |
2926 | "3472743044917564564078857826111874560045331237315597383869652985" | |
2927 | "6919870028890895988478351133601517365908445058405433832718206902" | |
2928 | "4088133164805266956353542", | |
2929 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2930 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2931 | "05973284973216824503042158", | |
2932 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2933 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2934 | "05973284973216824503042159", | |
2935 | "1" | |
2936 | }, | |
2937 | { /* between fifth and sixth iteration */ | |
2938 | "3608632990153469264412378349742339216742409743898601587274768025" | |
2939 | "0110772032985643555192767717344946174122842255204082586753499651" | |
2940 | "14483434992887431333675068", | |
2941 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2942 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2943 | "05973284973216824503042158", | |
2944 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2945 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2946 | "05973284973216824503042159", | |
2947 | "1" | |
2948 | }, | |
2949 | { /* between sixth and seventh iteration */ | |
2950 | "8455374370234070242910508226941981520235709767260723212165264877" | |
2951 | "8689064388017521524568434328264431772644802567028663962962025746" | |
2952 | "9283458217850119569539086", | |
2953 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2954 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2955 | "05973284973216824503042158", | |
2956 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2957 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2958 | "05973284973216824503042159", | |
2959 | "1" | |
2960 | }, | |
2961 | { /* between seventh and eighth iteration */ | |
2962 | "5155371529688532178421209781159131443543419764974688878527112131" | |
2963 | "7446518205609427412336183157918981038066636807317733319323257603" | |
2964 | "04416292040754017461076359", | |
2965 | "1005585594745694782468051874865438459560952436544429503329267108" | |
2966 | "2791323022555160232601405723625177570767523893639864538140315412" | |
2967 | "108959927459825236754563832", | |
2968 | "1005585594745694782468051874865438459560952436544429503329267108" | |
2969 | "2791323022555160232601405723625177570767523893639864538140315412" | |
2970 | "108959927459825236754563833", | |
2971 | "1" | |
2972 | }, | |
2973 | /* test vectors for rsaz_512_srq bug, with rcx/rbx=2 */ | |
2974 | { /* between first and second iteration */ | |
2975 | "3155666506033786929967309937640790361084670559125912405342594979" | |
2976 | "4345142818528956285490897841406338022378565972533508820577760065" | |
2977 | "58494345853302083699912572", | |
2978 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2979 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2980 | "05973284973216824503042158", | |
2981 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2982 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2983 | "05973284973216824503042159", | |
2984 | "1" | |
2985 | }, | |
2986 | { /* between second and third iteration */ | |
2987 | "3789819583801342198190405714582958759005991915505282362397087750" | |
2988 | "4213544724644823098843135685133927198668818185338794377239590049" | |
2989 | "41019388529192775771488319", | |
2990 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2991 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2992 | "05973284973216824503042158", | |
2993 | "6703903964971298549787012499102923063739682910296196688861780721" | |
2994 | "8608820150367734884009371490834517138450159290932430254268769414" | |
2995 | "05973284973216824503042159", | |
2996 | "1" | |
2997 | }, | |
2998 | { /* between third and forth iteration */ | |
2999 | "4695752552040706867080542538786056470322165281761525158189220280" | |
3000 | "4025547447667484759200742764246905647644662050122968912279199065" | |
3001 | "48065034299166336940507214", | |
3002 | "6703903964971298549787012499102923063739682910296196688861780721" | |
3003 | "8608820150367734884009371490834517138450159290932430254268769414" | |
3004 | "05973284973216824503042158", | |
3005 | "6703903964971298549787012499102923063739682910296196688861780721" | |
3006 | "8608820150367734884009371490834517138450159290932430254268769414" | |
3007 | "05973284973216824503042159", | |
3008 | "1" | |
3009 | }, | |
3010 | { /* between forth and fifth iteration */ | |
3011 | "2159140240970485794188159431017382878636879856244045329971239574" | |
3012 | "8919691133560661162828034323196457386059819832804593989740268964" | |
3013 | "74502911811812651475927076", | |
3014 | "6703903964971298549787012499102923063739682910296196688861780721" | |
3015 | "8608820150367734884009371490834517138450159290932430254268769414" | |
3016 | "05973284973216824503042158", | |
3017 | "6703903964971298549787012499102923063739682910296196688861780721" | |
3018 | "8608820150367734884009371490834517138450159290932430254268769414" | |
3019 | "05973284973216824503042159", | |
3020 | "1" | |
3021 | }, | |
3022 | { /* between fifth and sixth iteration */ | |
3023 | "5239312332984325668414624633307915097111691815000872662334695514" | |
3024 | "5436533521392362443557163429336808208137221322444780490437871903" | |
3025 | "99972784701334569424519255", | |
3026 | "6703903964971298549787012499102923063739682910296196688861780721" | |
3027 | "8608820150367734884009371490834517138450159290932430254268769414" | |
3028 | "05973284973216824503042158", | |
3029 | "6703903964971298549787012499102923063739682910296196688861780721" | |
3030 | "8608820150367734884009371490834517138450159290932430254268769414" | |
3031 | "05973284973216824503042159", | |
3032 | "1" | |
3033 | }, | |
3034 | { /* between sixth and seventh iteration */ | |
3035 | "1977953647322612860406858017869125467496941904523063466791308891" | |
3036 | "1172796739058531929470539758361774569875505293428856181093904091" | |
3037 | "33788264851714311303725089", | |
3038 | "6703903964971298549787012499102923063739682910296196688861780721" | |
3039 | "8608820150367734884009371490834517138450159290932430254268769414" | |
3040 | "05973284973216824503042158", | |
3041 | "6703903964971298549787012499102923063739682910296196688861780721" | |
3042 | "8608820150367734884009371490834517138450159290932430254268769414" | |
3043 | "05973284973216824503042159", | |
3044 | "1" | |
3045 | }, | |
3046 | { /* between seventh and eighth iteration */ | |
3047 | "6456987954117763835533395796948878140715006860263624787492985786" | |
3048 | "8514630216966738305923915688821526449499763719943997120302368211" | |
3049 | "04813318117996225041943964", | |
3050 | "1340780792994259709957402499820584612747936582059239337772356144" | |
3051 | "3721764030073546976801874298166903427690031858186486050853753882" | |
3052 | "811946551499689575296532556", | |
3053 | "1340780792994259709957402499820584612747936582059239337772356144" | |
3054 | "3721764030073546976801874298166903427690031858186486050853753882" | |
3055 | "811946551499689575296532557", | |
3056 | "1" | |
3057 | } | |
3058 | }; | |
3059 | ||
3060 | static int test_mod_exp(int i) | |
3061 | { | |
3062 | const MOD_EXP_TEST *test = &ModExpTests[i]; | |
3063 | int res = 0; | |
3064 | BIGNUM* result = NULL; | |
3065 | BIGNUM *base = NULL, *exponent = NULL, *modulo = NULL; | |
3066 | char *s = NULL; | |
3067 | ||
3068 | if (!TEST_ptr(result = BN_new()) | |
3069 | || !TEST_true(BN_dec2bn(&base, test->base)) | |
3070 | || !TEST_true(BN_dec2bn(&exponent, test->exp)) | |
3071 | || !TEST_true(BN_dec2bn(&modulo, test->mod))) | |
3072 | goto err; | |
3073 | ||
3074 | if (!TEST_int_eq(BN_mod_exp(result, base, exponent, modulo, ctx), 1)) | |
3075 | goto err; | |
3076 | ||
3077 | if (!TEST_ptr(s = BN_bn2dec(result))) | |
3078 | goto err; | |
3079 | ||
3080 | if (!TEST_mem_eq(s, strlen(s), test->res, strlen(test->res))) | |
3081 | goto err; | |
3082 | ||
3083 | res = 1; | |
3084 | ||
3085 | err: | |
3086 | OPENSSL_free(s); | |
3087 | BN_free(result); | |
3088 | BN_free(base); | |
3089 | BN_free(exponent); | |
3090 | BN_free(modulo); | |
3091 | return res; | |
3092 | } | |
3093 | ||
3094 | static int test_mod_exp_consttime(int i) | |
3095 | { | |
3096 | const MOD_EXP_TEST *test = &ModExpTests[i]; | |
3097 | int res = 0; | |
3098 | BIGNUM* result = NULL; | |
3099 | BIGNUM *base = NULL, *exponent = NULL, *modulo = NULL; | |
3100 | char *s = NULL; | |
3101 | ||
3102 | if (!TEST_ptr(result = BN_new()) | |
3103 | || !TEST_true(BN_dec2bn(&base, test->base)) | |
3104 | || !TEST_true(BN_dec2bn(&exponent, test->exp)) | |
3105 | || !TEST_true(BN_dec2bn(&modulo, test->mod))) | |
3106 | goto err; | |
3107 | ||
3108 | BN_set_flags(base, BN_FLG_CONSTTIME); | |
3109 | BN_set_flags(exponent, BN_FLG_CONSTTIME); | |
3110 | BN_set_flags(modulo, BN_FLG_CONSTTIME); | |
3111 | ||
3112 | if (!TEST_int_eq(BN_mod_exp(result, base, exponent, modulo, ctx), 1)) | |
3113 | goto err; | |
3114 | ||
3115 | if (!TEST_ptr(s = BN_bn2dec(result))) | |
3116 | goto err; | |
3117 | ||
3118 | if (!TEST_mem_eq(s, strlen(s), test->res, strlen(test->res))) | |
3119 | goto err; | |
3120 | ||
3121 | res = 1; | |
3122 | ||
3123 | err: | |
3124 | OPENSSL_free(s); | |
3125 | BN_free(result); | |
3126 | BN_free(base); | |
3127 | BN_free(exponent); | |
3128 | BN_free(modulo); | |
3129 | return res; | |
3130 | } | |
3131 | ||
43135a5d HL |
3132 | /* |
3133 | * Regression test to ensure BN_mod_exp2_mont fails safely if argument m is | |
3134 | * zero. | |
3135 | */ | |
3136 | static int test_mod_exp2_mont(void) | |
3137 | { | |
3138 | int res = 0; | |
3139 | BIGNUM *exp_result = NULL; | |
3140 | BIGNUM *exp_a1 = NULL, *exp_p1 = NULL, *exp_a2 = NULL, *exp_p2 = NULL, | |
3141 | *exp_m = NULL; | |
3142 | ||
3143 | if (!TEST_ptr(exp_result = BN_new()) | |
3144 | || !TEST_ptr(exp_a1 = BN_new()) | |
3145 | || !TEST_ptr(exp_p1 = BN_new()) | |
3146 | || !TEST_ptr(exp_a2 = BN_new()) | |
3147 | || !TEST_ptr(exp_p2 = BN_new()) | |
3148 | || !TEST_ptr(exp_m = BN_new())) | |
3149 | goto err; | |
3150 | ||
3151 | if (!TEST_true(BN_one(exp_a1)) | |
3152 | || !TEST_true(BN_one(exp_p1)) | |
3153 | || !TEST_true(BN_one(exp_a2)) | |
3154 | || !TEST_true(BN_one(exp_p2))) | |
3155 | goto err; | |
3156 | ||
3157 | BN_zero(exp_m); | |
3158 | ||
3159 | /* input of 0 is even, so must fail */ | |
3160 | if (!TEST_int_eq(BN_mod_exp2_mont(exp_result, exp_a1, exp_p1, exp_a2, | |
3161 | exp_p2, exp_m, ctx, NULL), 0)) | |
3162 | goto err; | |
3163 | ||
3164 | res = 1; | |
3165 | ||
3166 | err: | |
3167 | BN_free(exp_result); | |
3168 | BN_free(exp_a1); | |
3169 | BN_free(exp_p1); | |
3170 | BN_free(exp_a2); | |
3171 | BN_free(exp_p2); | |
3172 | BN_free(exp_m); | |
3173 | return res; | |
3174 | } | |
3175 | ||
af0025fc TM |
3176 | static int test_mod_inverse(void) |
3177 | { | |
3178 | int res = 0; | |
3179 | char *str = NULL; | |
3180 | BIGNUM *a = NULL; | |
3181 | BIGNUM *b = NULL; | |
3182 | BIGNUM *r = NULL; | |
3183 | ||
3184 | if (!TEST_true(BN_dec2bn(&a, "5193817943"))) | |
3185 | goto err; | |
3186 | if (!TEST_true(BN_dec2bn(&b, "3259122431"))) | |
3187 | goto err; | |
3188 | if (!TEST_ptr(r = BN_new())) | |
3189 | goto err; | |
3190 | if (!TEST_ptr_eq(BN_mod_inverse(r, a, b, ctx), r)) | |
3191 | goto err; | |
3192 | if (!TEST_ptr_ne(str = BN_bn2dec(r), NULL)) | |
3193 | goto err; | |
3194 | if (!TEST_int_eq(strcmp(str, "2609653924"), 0)) | |
3195 | goto err; | |
3196 | ||
3197 | /* Note that this aliases the result with the modulus. */ | |
3198 | if (!TEST_ptr_null(BN_mod_inverse(b, a, b, ctx))) | |
3199 | goto err; | |
3200 | ||
3201 | res = 1; | |
3202 | ||
3203 | err: | |
3204 | BN_free(a); | |
3205 | BN_free(b); | |
3206 | BN_free(r); | |
3207 | OPENSSL_free(str); | |
3208 | return res; | |
3209 | } | |
3210 | ||
3211 | static int test_mod_exp_alias(int idx) | |
3212 | { | |
3213 | int res = 0; | |
3214 | char *str = NULL; | |
3215 | BIGNUM *a = NULL; | |
3216 | BIGNUM *b = NULL; | |
3217 | BIGNUM *c = NULL; | |
3218 | BIGNUM *r = NULL; | |
3219 | ||
3220 | if (!TEST_true(BN_dec2bn(&a, "15"))) | |
3221 | goto err; | |
3222 | if (!TEST_true(BN_dec2bn(&b, "10"))) | |
3223 | goto err; | |
3224 | if (!TEST_true(BN_dec2bn(&c, "39"))) | |
3225 | goto err; | |
3226 | if (!TEST_ptr(r = BN_new())) | |
3227 | goto err; | |
3228 | ||
3229 | if (!TEST_int_eq((idx == 0 ? BN_mod_exp_simple | |
3230 | : BN_mod_exp_recp)(r, a, b, c, ctx), 1)) | |
3231 | goto err; | |
3232 | if (!TEST_ptr_ne(str = BN_bn2dec(r), NULL)) | |
3233 | goto err; | |
3234 | if (!TEST_str_eq(str, "36")) | |
3235 | goto err; | |
3236 | ||
3237 | OPENSSL_free(str); | |
3238 | str = NULL; | |
3239 | ||
3240 | BN_copy(r, b); | |
3241 | ||
3242 | /* Aliasing with exponent must work. */ | |
3243 | if (!TEST_int_eq((idx == 0 ? BN_mod_exp_simple | |
3244 | : BN_mod_exp_recp)(r, a, r, c, ctx), 1)) | |
3245 | goto err; | |
3246 | if (!TEST_ptr_ne(str = BN_bn2dec(r), NULL)) | |
3247 | goto err; | |
3248 | if (!TEST_str_eq(str, "36")) | |
3249 | goto err; | |
3250 | ||
3251 | OPENSSL_free(str); | |
3252 | str = NULL; | |
3253 | ||
3254 | /* Aliasing with modulus should return failure for the simple call. */ | |
3255 | if (idx == 0) { | |
3256 | if (!TEST_int_eq(BN_mod_exp_simple(c, a, b, c, ctx), 0)) | |
3257 | goto err; | |
3258 | } else { | |
3259 | if (!TEST_int_eq(BN_mod_exp_recp(c, a, b, c, ctx), 1)) | |
3260 | goto err; | |
3261 | if (!TEST_ptr_ne(str = BN_bn2dec(c), NULL)) | |
3262 | goto err; | |
3263 | if (!TEST_str_eq(str, "36")) | |
3264 | goto err; | |
3265 | } | |
3266 | ||
3267 | res = 1; | |
3268 | ||
3269 | err: | |
3270 | BN_free(a); | |
3271 | BN_free(b); | |
3272 | BN_free(c); | |
3273 | BN_free(r); | |
3274 | OPENSSL_free(str); | |
3275 | return res; | |
3276 | } | |
3277 | ||
8d1ebff4 | 3278 | static int file_test_run(STANZA *s) |
0f113f3e | 3279 | { |
8d1ebff4 RS |
3280 | static const FILETEST filetests[] = { |
3281 | {"Sum", file_sum}, | |
3282 | {"LShift1", file_lshift1}, | |
3283 | {"LShift", file_lshift}, | |
3284 | {"RShift", file_rshift}, | |
3285 | {"Square", file_square}, | |
3286 | {"Product", file_product}, | |
3287 | {"Quotient", file_quotient}, | |
3288 | {"ModMul", file_modmul}, | |
3289 | {"ModExp", file_modexp}, | |
3290 | {"Exp", file_exp}, | |
3291 | {"ModSqrt", file_modsqrt}, | |
b75d6310 | 3292 | {"GCD", file_gcd}, |
8d1ebff4 RS |
3293 | }; |
3294 | int numtests = OSSL_NELEM(filetests); | |
3295 | const FILETEST *tp = filetests; | |
0f113f3e | 3296 | |
8d1ebff4 | 3297 | for ( ; --numtests >= 0; tp++) { |
30bea14b RS |
3298 | if (findattr(s, tp->name) != NULL) { |
3299 | if (!tp->func(s)) { | |
ae269dd8 RS |
3300 | TEST_info("%s:%d: Failed %s test", |
3301 | s->test_file, s->start, tp->name); | |
30bea14b RS |
3302 | return 0; |
3303 | } | |
3304 | return 1; | |
3305 | } | |
0f113f3e | 3306 | } |
ae269dd8 | 3307 | TEST_info("%s:%d: Unknown test", s->test_file, s->start); |
8d1ebff4 | 3308 | return 0; |
0f113f3e | 3309 | } |
d02b48c6 | 3310 | |
e1cfd184 | 3311 | static int run_file_tests(int i) |
0f113f3e | 3312 | { |
ae269dd8 | 3313 | STANZA *s = NULL; |
ad887416 | 3314 | char *testfile = test_get_argument(i); |
ae269dd8 | 3315 | int c; |
0f113f3e | 3316 | |
ae269dd8 | 3317 | if (!TEST_ptr(s = OPENSSL_zalloc(sizeof(*s)))) |
e1cfd184 | 3318 | return 0; |
ad887416 | 3319 | if (!test_start_file(s, testfile)) { |
ae269dd8 RS |
3320 | OPENSSL_free(s); |
3321 | return 0; | |
3322 | } | |
e1cfd184 | 3323 | |
8d1ebff4 | 3324 | /* Read test file. */ |
ae269dd8 RS |
3325 | while (!BIO_eof(s->fp) && test_readstanza(s)) { |
3326 | if (s->numpairs == 0) | |
8d1ebff4 | 3327 | continue; |
ae269dd8 RS |
3328 | if (!file_test_run(s)) |
3329 | s->errors++; | |
3330 | s->numtests++; | |
3331 | test_clearstanza(s); | |
0f113f3e | 3332 | } |
ae269dd8 RS |
3333 | test_end_file(s); |
3334 | c = s->errors; | |
3335 | OPENSSL_free(s); | |
8d1ebff4 | 3336 | |
ae269dd8 | 3337 | return c == 0; |
0f113f3e | 3338 | } |
d02b48c6 | 3339 | |
5d2f3e4a P |
3340 | typedef enum OPTION_choice { |
3341 | OPT_ERR = -1, | |
3342 | OPT_EOF = 0, | |
3343 | OPT_STOCHASTIC_TESTS, | |
3344 | OPT_TEST_ENUM | |
3345 | } OPTION_CHOICE; | |
3346 | ||
a43ce58f SL |
3347 | const OPTIONS *test_get_options(void) |
3348 | { | |
a43ce58f SL |
3349 | static const OPTIONS test_options[] = { |
3350 | OPT_TEST_OPTIONS_WITH_EXTRA_USAGE("[file...]\n"), | |
5d2f3e4a | 3351 | { "stochastic", OPT_STOCHASTIC_TESTS, '-', "Run stochastic tests" }, |
a43ce58f SL |
3352 | { OPT_HELP_STR, 1, '-', |
3353 | "file\tFile to run tests on. Normal tests are not run\n" }, | |
3354 | { NULL } | |
3355 | }; | |
3356 | return test_options; | |
3357 | } | |
e1cfd184 | 3358 | |
ad887416 | 3359 | int setup_tests(void) |
0f113f3e | 3360 | { |
5d2f3e4a P |
3361 | OPTION_CHOICE o; |
3362 | int n, stochastic = 0; | |
3363 | ||
3364 | while ((o = opt_next()) != OPT_EOF) { | |
3365 | switch (o) { | |
3366 | case OPT_STOCHASTIC_TESTS: | |
3367 | stochastic = 1; | |
3368 | break; | |
3369 | case OPT_TEST_CASES: | |
3370 | break; | |
3371 | default: | |
3372 | case OPT_ERR: | |
dd6b2706 | 3373 | return 0; |
5d2f3e4a P |
3374 | } |
3375 | } | |
3376 | n = test_get_argument_count(); | |
8d1ebff4 | 3377 | |
e1cfd184 | 3378 | if (!TEST_ptr(ctx = BN_CTX_new())) |
ad887416 | 3379 | return 0; |
e1cfd184 | 3380 | |
ad887416 | 3381 | if (n == 0) { |
e1cfd184 RS |
3382 | ADD_TEST(test_sub); |
3383 | ADD_TEST(test_div_recip); | |
105c8315 P |
3384 | ADD_ALL_TESTS(test_signed_mod_replace_ab, OSSL_NELEM(signed_mod_tests)); |
3385 | ADD_ALL_TESTS(test_signed_mod_replace_ba, OSSL_NELEM(signed_mod_tests)); | |
e1cfd184 | 3386 | ADD_TEST(test_mod); |
af0025fc TM |
3387 | ADD_TEST(test_mod_inverse); |
3388 | ADD_ALL_TESTS(test_mod_exp_alias, 2); | |
e1cfd184 RS |
3389 | ADD_TEST(test_modexp_mont5); |
3390 | ADD_TEST(test_kronecker); | |
3391 | ADD_TEST(test_rand); | |
3392 | ADD_TEST(test_bn2padded); | |
3393 | ADD_TEST(test_dec2bn); | |
3394 | ADD_TEST(test_hex2bn); | |
3395 | ADD_TEST(test_asc2bn); | |
15192335 | 3396 | ADD_TEST(test_bin2zero); |
c9466f38 | 3397 | ADD_TEST(test_bin2bn_lengths); |
e1cfd184 | 3398 | ADD_ALL_TESTS(test_mpi, (int)OSSL_NELEM(kMPITests)); |
5288303d | 3399 | ADD_ALL_TESTS(test_bn2signed, (int)OSSL_NELEM(kSignedTests_BE)); |
e1cfd184 RS |
3400 | ADD_TEST(test_negzero); |
3401 | ADD_TEST(test_badmod); | |
3402 | ADD_TEST(test_expmodzero); | |
adf65243 | 3403 | ADD_TEST(test_expmodone); |
291f616c BE |
3404 | ADD_ALL_TESTS(test_smallprime, 16); |
3405 | ADD_ALL_TESTS(test_smallsafeprime, 16); | |
9e5b50b5 | 3406 | ADD_TEST(test_swap); |
fe16ae5f | 3407 | ADD_TEST(test_ctx_consttime_flag); |
8d1ebff4 | 3408 | #ifndef OPENSSL_NO_EC2M |
e1cfd184 RS |
3409 | ADD_TEST(test_gf2m_add); |
3410 | ADD_TEST(test_gf2m_mod); | |
3411 | ADD_TEST(test_gf2m_mul); | |
3412 | ADD_TEST(test_gf2m_sqr); | |
3413 | ADD_TEST(test_gf2m_modinv); | |
3414 | ADD_TEST(test_gf2m_moddiv); | |
3415 | ADD_TEST(test_gf2m_modexp); | |
3416 | ADD_TEST(test_gf2m_modsqrt); | |
3417 | ADD_TEST(test_gf2m_modsolvequad); | |
8d1ebff4 | 3418 | #endif |
7d79d13a SL |
3419 | ADD_ALL_TESTS(test_is_prime, (int)OSSL_NELEM(primes)); |
3420 | ADD_ALL_TESTS(test_not_prime, (int)OSSL_NELEM(not_primes)); | |
b75d6310 | 3421 | ADD_TEST(test_gcd_prime); |
dd1d7bcb | 3422 | ADD_TEST(test_coprime); |
18d42d8d BE |
3423 | ADD_ALL_TESTS(test_mod_exp, (int)OSSL_NELEM(ModExpTests)); |
3424 | ADD_ALL_TESTS(test_mod_exp_consttime, (int)OSSL_NELEM(ModExpTests)); | |
43135a5d | 3425 | ADD_TEST(test_mod_exp2_mont); |
5d2f3e4a P |
3426 | if (stochastic) |
3427 | ADD_TEST(test_rand_range); | |
e1cfd184 | 3428 | } else { |
ad887416 | 3429 | ADD_ALL_TESTS(run_file_tests, n); |
e1cfd184 | 3430 | } |
ad887416 P |
3431 | return 1; |
3432 | } | |
8d1ebff4 | 3433 | |
ad887416 P |
3434 | void cleanup_tests(void) |
3435 | { | |
8d1ebff4 | 3436 | BN_CTX_free(ctx); |
0f113f3e | 3437 | } |