]>
Commit | Line | Data |
---|---|---|
2039c421 | 1 | /* |
33388b44 | 2 | * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
2a7b6f39 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
2039c421 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 RE |
8 | */ |
9 | ||
c5f87134 P |
10 | /* |
11 | * RSA low level APIs are deprecated for public use, but still ok for | |
12 | * internal use. | |
13 | */ | |
14 | #include "internal/deprecated.h" | |
15 | ||
d02b48c6 | 16 | #include <stdio.h> |
ec577822 | 17 | #include <openssl/crypto.h> |
89abd1b6 MC |
18 | #include <openssl/core_names.h> |
19 | #include <openssl/engine.h> | |
20 | #include <openssl/evp.h> | |
b39fc560 | 21 | #include "internal/cryptlib.h" |
cd420b0b | 22 | #include "internal/refcount.h" |
110bff61 | 23 | #include "openssl/param_build.h" |
25f2138b | 24 | #include "crypto/bn.h" |
25f2138b | 25 | #include "crypto/evp.h" |
c3a4fa4c | 26 | #include "crypto/rsa.h" |
55f02cb6 | 27 | #include "crypto/security_bits.h" |
706457b7 | 28 | #include "rsa_local.h" |
d02b48c6 | 29 | |
afb638f1 MC |
30 | static RSA *rsa_new_intern(ENGINE *engine, OPENSSL_CTX *libctx); |
31 | ||
f844f9eb | 32 | #ifndef FIPS_MODULE |
6b691a5c | 33 | RSA *RSA_new(void) |
0f113f3e | 34 | { |
afb638f1 | 35 | return rsa_new_intern(NULL, NULL); |
0f113f3e | 36 | } |
ce8b2574 | 37 | |
29c1f061 | 38 | const RSA_METHOD *RSA_get_method(const RSA *rsa) |
0f113f3e MC |
39 | { |
40 | return rsa->meth; | |
41 | } | |
cb78486d GT |
42 | |
43 | int RSA_set_method(RSA *rsa, const RSA_METHOD *meth) | |
0f113f3e MC |
44 | { |
45 | /* | |
46 | * NB: The caller is specifically setting a method, so it's not up to us | |
47 | * to deal with which ENGINE it comes from. | |
48 | */ | |
49 | const RSA_METHOD *mtmp; | |
50 | mtmp = rsa->meth; | |
51 | if (mtmp->finish) | |
52 | mtmp->finish(rsa); | |
0b13e9f0 | 53 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd RS |
54 | ENGINE_finish(rsa->engine); |
55 | rsa->engine = NULL; | |
0b13e9f0 | 56 | #endif |
0f113f3e MC |
57 | rsa->meth = meth; |
58 | if (meth->init) | |
59 | meth->init(rsa); | |
60 | return 1; | |
61 | } | |
ce8b2574 | 62 | |
5270e702 | 63 | RSA *RSA_new_method(ENGINE *engine) |
afb638f1 MC |
64 | { |
65 | return rsa_new_intern(engine, NULL); | |
66 | } | |
67 | #endif | |
68 | ||
69 | RSA *rsa_new_with_ctx(OPENSSL_CTX *libctx) | |
70 | { | |
71 | return rsa_new_intern(NULL, libctx); | |
72 | } | |
73 | ||
74 | static RSA *rsa_new_intern(ENGINE *engine, OPENSSL_CTX *libctx) | |
0f113f3e | 75 | { |
11ed851d | 76 | RSA *ret = OPENSSL_zalloc(sizeof(*ret)); |
d02b48c6 | 77 | |
0f113f3e | 78 | if (ret == NULL) { |
afb638f1 | 79 | RSAerr(0, ERR_R_MALLOC_FAILURE); |
0f113f3e MC |
80 | return NULL; |
81 | } | |
d02b48c6 | 82 | |
11ed851d F |
83 | ret->references = 1; |
84 | ret->lock = CRYPTO_THREAD_lock_new(); | |
85 | if (ret->lock == NULL) { | |
afb638f1 | 86 | RSAerr(0, ERR_R_MALLOC_FAILURE); |
11ed851d F |
87 | OPENSSL_free(ret); |
88 | return NULL; | |
89 | } | |
90 | ||
afb638f1 | 91 | ret->libctx = libctx; |
0f113f3e | 92 | ret->meth = RSA_get_default_method(); |
f844f9eb | 93 | #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE) |
11ed851d | 94 | ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW; |
0f113f3e MC |
95 | if (engine) { |
96 | if (!ENGINE_init(engine)) { | |
afb638f1 | 97 | RSAerr(0, ERR_R_ENGINE_LIB); |
11ed851d | 98 | goto err; |
0f113f3e MC |
99 | } |
100 | ret->engine = engine; | |
90862ab4 | 101 | } else { |
0f113f3e | 102 | ret->engine = ENGINE_get_default_RSA(); |
90862ab4 | 103 | } |
0f113f3e MC |
104 | if (ret->engine) { |
105 | ret->meth = ENGINE_get_RSA(ret->engine); | |
7c96dbcd | 106 | if (ret->meth == NULL) { |
afb638f1 | 107 | RSAerr(0, ERR_R_ENGINE_LIB); |
11ed851d | 108 | goto err; |
0f113f3e MC |
109 | } |
110 | } | |
0b13e9f0 | 111 | #endif |
0c9de428 | 112 | |
0f113f3e | 113 | ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW; |
f844f9eb | 114 | #ifndef FIPS_MODULE |
0f113f3e | 115 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data)) { |
11ed851d | 116 | goto err; |
d188a536 | 117 | } |
a3327784 | 118 | #endif |
d188a536 AG |
119 | |
120 | if ((ret->meth->init != NULL) && !ret->meth->init(ret)) { | |
afb638f1 | 121 | RSAerr(0, ERR_R_INIT_FAIL); |
11ed851d | 122 | goto err; |
0f113f3e | 123 | } |
d188a536 AG |
124 | |
125 | return ret; | |
11ed851d | 126 | |
544648a8 | 127 | err: |
11ed851d F |
128 | RSA_free(ret); |
129 | return NULL; | |
0f113f3e | 130 | } |
d02b48c6 | 131 | |
6b691a5c | 132 | void RSA_free(RSA *r) |
0f113f3e MC |
133 | { |
134 | int i; | |
d02b48c6 | 135 | |
0f113f3e MC |
136 | if (r == NULL) |
137 | return; | |
d02b48c6 | 138 | |
2f545ae4 | 139 | CRYPTO_DOWN_REF(&r->references, &i, r->lock); |
f3f1cf84 | 140 | REF_PRINT_COUNT("RSA", r); |
0f113f3e MC |
141 | if (i > 0) |
142 | return; | |
f3f1cf84 | 143 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 144 | |
0c5d725e | 145 | if (r->meth != NULL && r->meth->finish != NULL) |
0f113f3e | 146 | r->meth->finish(r); |
f844f9eb | 147 | #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE) |
412bafdc | 148 | ENGINE_finish(r->engine); |
0b13e9f0 | 149 | #endif |
d02b48c6 | 150 | |
f844f9eb | 151 | #ifndef FIPS_MODULE |
0f113f3e | 152 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data); |
a3327784 | 153 | #endif |
7abe8305 | 154 | |
d188a536 AG |
155 | CRYPTO_THREAD_lock_free(r->lock); |
156 | ||
c033101d MB |
157 | BN_free(r->n); |
158 | BN_free(r->e); | |
23a1d5e9 RS |
159 | BN_clear_free(r->d); |
160 | BN_clear_free(r->p); | |
161 | BN_clear_free(r->q); | |
162 | BN_clear_free(r->dmp1); | |
163 | BN_clear_free(r->dmq1); | |
164 | BN_clear_free(r->iqmp); | |
f844f9eb | 165 | #ifndef FIPS_MODULE |
d771441d | 166 | RSA_PSS_PARAMS_free(r->pss); |
665d899f | 167 | sk_RSA_PRIME_INFO_pop_free(r->prime_infos, rsa_multip_info_free); |
afb638f1 | 168 | #endif |
23a1d5e9 RS |
169 | BN_BLINDING_free(r->blinding); |
170 | BN_BLINDING_free(r->mt_blinding); | |
4c42ebd2 | 171 | OPENSSL_free(r->bignum_data); |
0f113f3e MC |
172 | OPENSSL_free(r); |
173 | } | |
d02b48c6 | 174 | |
6ac4e8bd | 175 | int RSA_up_ref(RSA *r) |
0f113f3e | 176 | { |
d188a536 AG |
177 | int i; |
178 | ||
2f545ae4 | 179 | if (CRYPTO_UP_REF(&r->references, &i, r->lock) <= 0) |
d188a536 | 180 | return 0; |
f3f1cf84 RS |
181 | |
182 | REF_PRINT_COUNT("RSA", r); | |
183 | REF_ASSERT_ISNT(i < 2); | |
8686c474 | 184 | return i > 1 ? 1 : 0; |
0f113f3e | 185 | } |
5cbc2e8b | 186 | |
8a758e96 RL |
187 | OPENSSL_CTX *rsa_get0_libctx(RSA *r) |
188 | { | |
189 | return r->libctx; | |
190 | } | |
191 | ||
f844f9eb | 192 | #ifndef FIPS_MODULE |
dd9d233e | 193 | int RSA_set_ex_data(RSA *r, int idx, void *arg) |
0f113f3e | 194 | { |
8686c474 | 195 | return CRYPTO_set_ex_data(&r->ex_data, idx, arg); |
0f113f3e | 196 | } |
58964a49 | 197 | |
29c1f061 | 198 | void *RSA_get_ex_data(const RSA *r, int idx) |
0f113f3e | 199 | { |
8686c474 | 200 | return CRYPTO_get_ex_data(&r->ex_data, idx); |
0f113f3e | 201 | } |
a3327784 | 202 | #endif |
58964a49 | 203 | |
97b0b713 P |
204 | /* |
205 | * Define a scaling constant for our fixed point arithmetic. | |
206 | * This value must be a power of two because the base two logarithm code | |
207 | * makes this assumption. The exponent must also be a multiple of three so | |
208 | * that the scale factor has an exact cube root. Finally, the scale factor | |
209 | * should not be so large that a multiplication of two scaled numbers | |
210 | * overflows a 64 bit unsigned integer. | |
211 | */ | |
212 | static const unsigned int scale = 1 << 18; | |
213 | static const unsigned int cbrt_scale = 1 << (2 * 18 / 3); | |
214 | ||
215 | /* Define some constants, none exceed 32 bits */ | |
216 | static const unsigned int log_2 = 0x02c5c8; /* scale * log(2) */ | |
217 | static const unsigned int log_e = 0x05c551; /* scale * log2(M_E) */ | |
218 | static const unsigned int c1_923 = 0x07b126; /* scale * 1.923 */ | |
219 | static const unsigned int c4_690 = 0x12c28f; /* scale * 4.690 */ | |
220 | ||
221 | /* | |
2beb004b | 222 | * Multiply two scaled integers together and rescale the result. |
97b0b713 P |
223 | */ |
224 | static ossl_inline uint64_t mul2(uint64_t a, uint64_t b) | |
225 | { | |
226 | return a * b / scale; | |
227 | } | |
228 | ||
229 | /* | |
230 | * Calculate the cube root of a 64 bit scaled integer. | |
231 | * Although the cube root of a 64 bit number does fit into a 32 bit unsigned | |
232 | * integer, this is not guaranteed after scaling, so this function has a | |
233 | * 64 bit return. This uses the shifting nth root algorithm with some | |
234 | * algebraic simplifications. | |
235 | */ | |
236 | static uint64_t icbrt64(uint64_t x) | |
237 | { | |
238 | uint64_t r = 0; | |
239 | uint64_t b; | |
240 | int s; | |
241 | ||
242 | for (s = 63; s >= 0; s -= 3) { | |
243 | r <<= 1; | |
244 | b = 3 * r * (r + 1) + 1; | |
245 | if ((x >> s) >= b) { | |
246 | x -= b << s; | |
247 | r++; | |
248 | } | |
249 | } | |
250 | return r * cbrt_scale; | |
251 | } | |
252 | ||
253 | /* | |
254 | * Calculate the natural logarithm of a 64 bit scaled integer. | |
255 | * This is done by calculating a base two logarithm and scaling. | |
256 | * The maximum logarithm (base 2) is 64 and this reduces base e, so | |
257 | * a 32 bit result should not overflow. The argument passed must be | |
258 | * greater than unity so we don't need to handle negative results. | |
259 | */ | |
260 | static uint32_t ilog_e(uint64_t v) | |
261 | { | |
262 | uint32_t i, r = 0; | |
263 | ||
264 | /* | |
265 | * Scale down the value into the range 1 .. 2. | |
266 | * | |
267 | * If fractional numbers need to be processed, another loop needs | |
268 | * to go here that checks v < scale and if so multiplies it by 2 and | |
269 | * reduces r by scale. This also means making r signed. | |
270 | */ | |
271 | while (v >= 2 * scale) { | |
272 | v >>= 1; | |
273 | r += scale; | |
274 | } | |
275 | for (i = scale / 2; i != 0; i /= 2) { | |
276 | v = mul2(v, v); | |
277 | if (v >= 2 * scale) { | |
278 | v >>= 1; | |
279 | r += i; | |
280 | } | |
281 | } | |
282 | r = (r * (uint64_t)scale) / log_e; | |
283 | return r; | |
284 | } | |
285 | ||
286 | /* | |
287 | * NIST SP 800-56B rev 2 Appendix D: Maximum Security Strength Estimates for IFC | |
288 | * Modulus Lengths. | |
289 | * | |
55f02cb6 SL |
290 | * Note that this formula is also referred to in SP800-56A rev3 Appendix D: |
291 | * for FFC safe prime groups for modp and ffdhe. | |
292 | * After Table 25 and Table 26 it refers to | |
293 | * "The maximum security strength estimates were calculated using the formula in | |
294 | * Section 7.5 of the FIPS 140 IG and rounded to the nearest multiple of eight | |
295 | * bits". | |
296 | * | |
297 | * The formula is: | |
298 | * | |
97b0b713 P |
299 | * E = \frac{1.923 \sqrt[3]{nBits \cdot log_e(2)} |
300 | * \cdot(log_e(nBits \cdot log_e(2))^{2/3} - 4.69}{log_e(2)} | |
301 | * The two cube roots are merged together here. | |
302 | */ | |
55f02cb6 | 303 | uint16_t ifc_ffc_compute_security_bits(int n) |
97b0b713 P |
304 | { |
305 | uint64_t x; | |
306 | uint32_t lx; | |
307 | uint16_t y; | |
308 | ||
309 | /* Look for common values as listed in SP 800-56B rev 2 Appendix D */ | |
310 | switch (n) { | |
311 | case 2048: | |
312 | return 112; | |
313 | case 3072: | |
314 | return 128; | |
315 | case 4096: | |
316 | return 152; | |
317 | case 6144: | |
318 | return 176; | |
319 | case 8192: | |
320 | return 200; | |
321 | } | |
322 | /* | |
323 | * The first incorrect result (i.e. not accurate or off by one low) occurs | |
324 | * for n = 699668. The true value here is 1200. Instead of using this n | |
325 | * as the check threshold, the smallest n such that the correct result is | |
326 | * 1200 is used instead. | |
327 | */ | |
328 | if (n >= 687737) | |
329 | return 1200; | |
330 | if (n < 8) | |
331 | return 0; | |
332 | ||
333 | x = n * (uint64_t)log_2; | |
334 | lx = ilog_e(x); | |
335 | y = (uint16_t)((mul2(c1_923, icbrt64(mul2(mul2(x, lx), lx))) - c4_690) | |
336 | / log_2); | |
337 | return (y + 4) & ~7; | |
338 | } | |
339 | ||
55f02cb6 SL |
340 | |
341 | ||
2514fa79 | 342 | int RSA_security_bits(const RSA *rsa) |
0f113f3e | 343 | { |
0122add6 AP |
344 | int bits = BN_num_bits(rsa->n); |
345 | ||
f844f9eb | 346 | #ifndef FIPS_MODULE |
0122add6 AP |
347 | if (rsa->version == RSA_ASN1_VERSION_MULTI) { |
348 | /* This ought to mean that we have private key at hand. */ | |
349 | int ex_primes = sk_RSA_PRIME_INFO_num(rsa->prime_infos); | |
350 | ||
351 | if (ex_primes <= 0 || (ex_primes + 2) > rsa_multip_cap(bits)) | |
352 | return 0; | |
353 | } | |
afb638f1 | 354 | #endif |
55f02cb6 | 355 | return ifc_ffc_compute_security_bits(bits); |
0f113f3e | 356 | } |
9862e9aa RL |
357 | |
358 | int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d) | |
359 | { | |
fd809cfd | 360 | /* If the fields n and e in r are NULL, the corresponding input |
1da12e34 RL |
361 | * parameters MUST be non-NULL for n and e. d may be |
362 | * left NULL (in case only the public key is used). | |
1da12e34 | 363 | */ |
b84e1226 MC |
364 | if ((r->n == NULL && n == NULL) |
365 | || (r->e == NULL && e == NULL)) | |
9862e9aa RL |
366 | return 0; |
367 | ||
1da12e34 RL |
368 | if (n != NULL) { |
369 | BN_free(r->n); | |
370 | r->n = n; | |
371 | } | |
372 | if (e != NULL) { | |
373 | BN_free(r->e); | |
374 | r->e = e; | |
375 | } | |
376 | if (d != NULL) { | |
c033101d | 377 | BN_clear_free(r->d); |
1da12e34 | 378 | r->d = d; |
311e903d | 379 | BN_set_flags(r->d, BN_FLG_CONSTTIME); |
1da12e34 | 380 | } |
29be6023 | 381 | r->dirty_cnt++; |
9862e9aa RL |
382 | |
383 | return 1; | |
384 | } | |
385 | ||
386 | int RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q) | |
387 | { | |
fd809cfd | 388 | /* If the fields p and q in r are NULL, the corresponding input |
1da12e34 | 389 | * parameters MUST be non-NULL. |
1da12e34 | 390 | */ |
b84e1226 MC |
391 | if ((r->p == NULL && p == NULL) |
392 | || (r->q == NULL && q == NULL)) | |
9862e9aa RL |
393 | return 0; |
394 | ||
1da12e34 | 395 | if (p != NULL) { |
c033101d | 396 | BN_clear_free(r->p); |
1da12e34 | 397 | r->p = p; |
311e903d | 398 | BN_set_flags(r->p, BN_FLG_CONSTTIME); |
1da12e34 RL |
399 | } |
400 | if (q != NULL) { | |
c033101d | 401 | BN_clear_free(r->q); |
1da12e34 | 402 | r->q = q; |
311e903d | 403 | BN_set_flags(r->q, BN_FLG_CONSTTIME); |
1da12e34 | 404 | } |
29be6023 | 405 | r->dirty_cnt++; |
9862e9aa RL |
406 | |
407 | return 1; | |
408 | } | |
409 | ||
410 | int RSA_set0_crt_params(RSA *r, BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp) | |
411 | { | |
fd809cfd | 412 | /* If the fields dmp1, dmq1 and iqmp in r are NULL, the corresponding input |
1da12e34 | 413 | * parameters MUST be non-NULL. |
1da12e34 | 414 | */ |
b84e1226 MC |
415 | if ((r->dmp1 == NULL && dmp1 == NULL) |
416 | || (r->dmq1 == NULL && dmq1 == NULL) | |
417 | || (r->iqmp == NULL && iqmp == NULL)) | |
9862e9aa RL |
418 | return 0; |
419 | ||
1da12e34 | 420 | if (dmp1 != NULL) { |
c033101d | 421 | BN_clear_free(r->dmp1); |
1da12e34 | 422 | r->dmp1 = dmp1; |
311e903d | 423 | BN_set_flags(r->dmp1, BN_FLG_CONSTTIME); |
1da12e34 RL |
424 | } |
425 | if (dmq1 != NULL) { | |
c033101d | 426 | BN_clear_free(r->dmq1); |
1da12e34 | 427 | r->dmq1 = dmq1; |
311e903d | 428 | BN_set_flags(r->dmq1, BN_FLG_CONSTTIME); |
1da12e34 RL |
429 | } |
430 | if (iqmp != NULL) { | |
c033101d | 431 | BN_clear_free(r->iqmp); |
1da12e34 | 432 | r->iqmp = iqmp; |
311e903d | 433 | BN_set_flags(r->iqmp, BN_FLG_CONSTTIME); |
1da12e34 | 434 | } |
29be6023 | 435 | r->dirty_cnt++; |
9862e9aa RL |
436 | |
437 | return 1; | |
438 | } | |
439 | ||
f844f9eb | 440 | #ifndef FIPS_MODULE |
665d899f PY |
441 | /* |
442 | * Is it better to export RSA_PRIME_INFO structure | |
443 | * and related functions to let user pass a triplet? | |
444 | */ | |
445 | int RSA_set0_multi_prime_params(RSA *r, BIGNUM *primes[], BIGNUM *exps[], | |
446 | BIGNUM *coeffs[], int pnum) | |
447 | { | |
448 | STACK_OF(RSA_PRIME_INFO) *prime_infos, *old = NULL; | |
449 | RSA_PRIME_INFO *pinfo; | |
450 | int i; | |
451 | ||
452 | if (primes == NULL || exps == NULL || coeffs == NULL || pnum == 0) | |
453 | return 0; | |
454 | ||
455 | prime_infos = sk_RSA_PRIME_INFO_new_reserve(NULL, pnum); | |
456 | if (prime_infos == NULL) | |
457 | return 0; | |
458 | ||
459 | if (r->prime_infos != NULL) | |
460 | old = r->prime_infos; | |
461 | ||
462 | for (i = 0; i < pnum; i++) { | |
463 | pinfo = rsa_multip_info_new(); | |
464 | if (pinfo == NULL) | |
465 | goto err; | |
466 | if (primes[i] != NULL && exps[i] != NULL && coeffs[i] != NULL) { | |
d2baf88c CPG |
467 | BN_clear_free(pinfo->r); |
468 | BN_clear_free(pinfo->d); | |
469 | BN_clear_free(pinfo->t); | |
665d899f PY |
470 | pinfo->r = primes[i]; |
471 | pinfo->d = exps[i]; | |
472 | pinfo->t = coeffs[i]; | |
d2baf88c CPG |
473 | BN_set_flags(pinfo->r, BN_FLG_CONSTTIME); |
474 | BN_set_flags(pinfo->d, BN_FLG_CONSTTIME); | |
475 | BN_set_flags(pinfo->t, BN_FLG_CONSTTIME); | |
665d899f PY |
476 | } else { |
477 | rsa_multip_info_free(pinfo); | |
478 | goto err; | |
479 | } | |
480 | (void)sk_RSA_PRIME_INFO_push(prime_infos, pinfo); | |
481 | } | |
482 | ||
483 | r->prime_infos = prime_infos; | |
484 | ||
485 | if (!rsa_multip_calc_product(r)) { | |
486 | r->prime_infos = old; | |
487 | goto err; | |
488 | } | |
489 | ||
490 | if (old != NULL) { | |
491 | /* | |
492 | * This is hard to deal with, since the old infos could | |
493 | * also be set by this function and r, d, t should not | |
494 | * be freed in that case. So currently, stay consistent | |
495 | * with other *set0* functions: just free it... | |
496 | */ | |
497 | sk_RSA_PRIME_INFO_pop_free(old, rsa_multip_info_free); | |
498 | } | |
499 | ||
500 | r->version = RSA_ASN1_VERSION_MULTI; | |
29be6023 | 501 | r->dirty_cnt++; |
665d899f PY |
502 | |
503 | return 1; | |
504 | err: | |
505 | /* r, d, t should not be freed */ | |
506 | sk_RSA_PRIME_INFO_pop_free(prime_infos, rsa_multip_info_free_ex); | |
507 | return 0; | |
508 | } | |
afb638f1 | 509 | #endif |
665d899f | 510 | |
fd809cfd RL |
511 | void RSA_get0_key(const RSA *r, |
512 | const BIGNUM **n, const BIGNUM **e, const BIGNUM **d) | |
9862e9aa RL |
513 | { |
514 | if (n != NULL) | |
515 | *n = r->n; | |
516 | if (e != NULL) | |
517 | *e = r->e; | |
518 | if (d != NULL) | |
519 | *d = r->d; | |
520 | } | |
521 | ||
fd809cfd | 522 | void RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q) |
9862e9aa RL |
523 | { |
524 | if (p != NULL) | |
525 | *p = r->p; | |
526 | if (q != NULL) | |
527 | *q = r->q; | |
528 | } | |
529 | ||
f844f9eb | 530 | #ifndef FIPS_MODULE |
665d899f PY |
531 | int RSA_get_multi_prime_extra_count(const RSA *r) |
532 | { | |
533 | int pnum; | |
534 | ||
535 | pnum = sk_RSA_PRIME_INFO_num(r->prime_infos); | |
536 | if (pnum <= 0) | |
537 | pnum = 0; | |
538 | return pnum; | |
539 | } | |
540 | ||
541 | int RSA_get0_multi_prime_factors(const RSA *r, const BIGNUM *primes[]) | |
542 | { | |
543 | int pnum, i; | |
544 | RSA_PRIME_INFO *pinfo; | |
545 | ||
546 | if ((pnum = RSA_get_multi_prime_extra_count(r)) == 0) | |
547 | return 0; | |
548 | ||
549 | /* | |
550 | * return other primes | |
551 | * it's caller's responsibility to allocate oth_primes[pnum] | |
552 | */ | |
553 | for (i = 0; i < pnum; i++) { | |
554 | pinfo = sk_RSA_PRIME_INFO_value(r->prime_infos, i); | |
555 | primes[i] = pinfo->r; | |
556 | } | |
557 | ||
558 | return 1; | |
559 | } | |
afb638f1 | 560 | #endif |
665d899f | 561 | |
9862e9aa | 562 | void RSA_get0_crt_params(const RSA *r, |
fd809cfd RL |
563 | const BIGNUM **dmp1, const BIGNUM **dmq1, |
564 | const BIGNUM **iqmp) | |
9862e9aa RL |
565 | { |
566 | if (dmp1 != NULL) | |
567 | *dmp1 = r->dmp1; | |
568 | if (dmq1 != NULL) | |
569 | *dmq1 = r->dmq1; | |
570 | if (iqmp != NULL) | |
571 | *iqmp = r->iqmp; | |
572 | } | |
573 | ||
f844f9eb | 574 | #ifndef FIPS_MODULE |
665d899f PY |
575 | int RSA_get0_multi_prime_crt_params(const RSA *r, const BIGNUM *exps[], |
576 | const BIGNUM *coeffs[]) | |
577 | { | |
578 | int pnum; | |
579 | ||
580 | if ((pnum = RSA_get_multi_prime_extra_count(r)) == 0) | |
581 | return 0; | |
582 | ||
583 | /* return other primes */ | |
584 | if (exps != NULL || coeffs != NULL) { | |
585 | RSA_PRIME_INFO *pinfo; | |
586 | int i; | |
587 | ||
588 | /* it's the user's job to guarantee the buffer length */ | |
589 | for (i = 0; i < pnum; i++) { | |
590 | pinfo = sk_RSA_PRIME_INFO_value(r->prime_infos, i); | |
591 | if (exps != NULL) | |
592 | exps[i] = pinfo->d; | |
593 | if (coeffs != NULL) | |
594 | coeffs[i] = pinfo->t; | |
595 | } | |
596 | } | |
597 | ||
598 | return 1; | |
599 | } | |
afb638f1 | 600 | #endif |
665d899f | 601 | |
6692ff77 DMSP |
602 | const BIGNUM *RSA_get0_n(const RSA *r) |
603 | { | |
604 | return r->n; | |
605 | } | |
606 | ||
607 | const BIGNUM *RSA_get0_e(const RSA *r) | |
608 | { | |
609 | return r->e; | |
610 | } | |
611 | ||
612 | const BIGNUM *RSA_get0_d(const RSA *r) | |
613 | { | |
614 | return r->d; | |
615 | } | |
616 | ||
617 | const BIGNUM *RSA_get0_p(const RSA *r) | |
618 | { | |
619 | return r->p; | |
620 | } | |
621 | ||
622 | const BIGNUM *RSA_get0_q(const RSA *r) | |
623 | { | |
624 | return r->q; | |
625 | } | |
626 | ||
627 | const BIGNUM *RSA_get0_dmp1(const RSA *r) | |
628 | { | |
629 | return r->dmp1; | |
630 | } | |
631 | ||
632 | const BIGNUM *RSA_get0_dmq1(const RSA *r) | |
633 | { | |
634 | return r->dmq1; | |
635 | } | |
636 | ||
637 | const BIGNUM *RSA_get0_iqmp(const RSA *r) | |
638 | { | |
639 | return r->iqmp; | |
640 | } | |
641 | ||
677add38 RL |
642 | const RSA_PSS_PARAMS *RSA_get0_pss_params(const RSA *r) |
643 | { | |
15671090 RL |
644 | #ifdef FIPS_MODULE |
645 | return NULL; | |
646 | #else | |
677add38 | 647 | return r->pss; |
15671090 RL |
648 | #endif |
649 | } | |
650 | ||
651 | /* Internal */ | |
652 | RSA_PSS_PARAMS_30 *rsa_get0_pss_params_30(RSA *r) | |
653 | { | |
654 | return &r->pss_params; | |
677add38 RL |
655 | } |
656 | ||
9862e9aa RL |
657 | void RSA_clear_flags(RSA *r, int flags) |
658 | { | |
659 | r->flags &= ~flags; | |
660 | } | |
661 | ||
662 | int RSA_test_flags(const RSA *r, int flags) | |
663 | { | |
664 | return r->flags & flags; | |
665 | } | |
666 | ||
667 | void RSA_set_flags(RSA *r, int flags) | |
668 | { | |
669 | r->flags |= flags; | |
670 | } | |
671 | ||
665d899f PY |
672 | int RSA_get_version(RSA *r) |
673 | { | |
674 | /* { two-prime(0), multi(1) } */ | |
675 | return r->version; | |
676 | } | |
677 | ||
f844f9eb | 678 | #ifndef FIPS_MODULE |
e0685d24 | 679 | ENGINE *RSA_get0_engine(const RSA *r) |
9862e9aa RL |
680 | { |
681 | return r->engine; | |
682 | } | |
e5e04ee3 DSH |
683 | |
684 | int RSA_pkey_ctx_ctrl(EVP_PKEY_CTX *ctx, int optype, int cmd, int p1, void *p2) | |
685 | { | |
686 | /* If key type not RSA or RSA-PSS return error */ | |
687 | if (ctx != NULL && ctx->pmeth != NULL | |
688 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA | |
689 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS) | |
690 | return -1; | |
691 | return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, p1, p2); | |
692 | } | |
afb638f1 | 693 | #endif |
c3a4fa4c RL |
694 | |
695 | DEFINE_STACK_OF(BIGNUM) | |
696 | ||
697 | int rsa_set0_all_params(RSA *r, const STACK_OF(BIGNUM) *primes, | |
698 | const STACK_OF(BIGNUM) *exps, | |
699 | const STACK_OF(BIGNUM) *coeffs) | |
700 | { | |
f844f9eb | 701 | #ifndef FIPS_MODULE |
c3a4fa4c | 702 | STACK_OF(RSA_PRIME_INFO) *prime_infos, *old_infos = NULL; |
afb638f1 | 703 | #endif |
c3a4fa4c RL |
704 | int pnum; |
705 | ||
706 | if (primes == NULL || exps == NULL || coeffs == NULL) | |
707 | return 0; | |
708 | ||
709 | pnum = sk_BIGNUM_num(primes); | |
710 | if (pnum < 2 | |
711 | || pnum != sk_BIGNUM_num(exps) | |
712 | || pnum != sk_BIGNUM_num(coeffs) + 1) | |
713 | return 0; | |
714 | ||
715 | if (!RSA_set0_factors(r, sk_BIGNUM_value(primes, 0), | |
716 | sk_BIGNUM_value(primes, 1)) | |
717 | || !RSA_set0_crt_params(r, sk_BIGNUM_value(exps, 0), | |
718 | sk_BIGNUM_value(exps, 1), | |
719 | sk_BIGNUM_value(coeffs, 0))) | |
720 | return 0; | |
721 | ||
f844f9eb | 722 | #ifndef FIPS_MODULE |
c3a4fa4c | 723 | old_infos = r->prime_infos; |
afb638f1 | 724 | #endif |
c3a4fa4c RL |
725 | |
726 | if (pnum > 2) { | |
f844f9eb | 727 | #ifndef FIPS_MODULE |
c3a4fa4c RL |
728 | int i; |
729 | ||
730 | prime_infos = sk_RSA_PRIME_INFO_new_reserve(NULL, pnum); | |
731 | if (prime_infos == NULL) | |
732 | return 0; | |
733 | ||
734 | for (i = 2; i < pnum; i++) { | |
735 | BIGNUM *prime = sk_BIGNUM_value(primes, i); | |
736 | BIGNUM *exp = sk_BIGNUM_value(exps, i); | |
737 | BIGNUM *coeff = sk_BIGNUM_value(coeffs, i - 1); | |
738 | RSA_PRIME_INFO *pinfo = NULL; | |
739 | ||
740 | if (!ossl_assert(prime != NULL && exp != NULL && coeff != NULL)) | |
741 | goto err; | |
742 | ||
743 | /* Using rsa_multip_info_new() is wasteful, so allocate directly */ | |
744 | if ((pinfo = OPENSSL_zalloc(sizeof(*pinfo))) == NULL) { | |
745 | ERR_raise(ERR_LIB_RSA, ERR_R_MALLOC_FAILURE); | |
746 | goto err; | |
747 | } | |
748 | ||
749 | pinfo->r = prime; | |
750 | pinfo->d = exp; | |
751 | pinfo->t = coeff; | |
752 | BN_set_flags(pinfo->r, BN_FLG_CONSTTIME); | |
753 | BN_set_flags(pinfo->d, BN_FLG_CONSTTIME); | |
754 | BN_set_flags(pinfo->t, BN_FLG_CONSTTIME); | |
755 | (void)sk_RSA_PRIME_INFO_push(prime_infos, pinfo); | |
756 | } | |
757 | ||
758 | r->prime_infos = prime_infos; | |
759 | ||
760 | if (!rsa_multip_calc_product(r)) { | |
761 | r->prime_infos = old_infos; | |
762 | goto err; | |
763 | } | |
afb638f1 MC |
764 | #else |
765 | return 0; | |
766 | #endif | |
c3a4fa4c RL |
767 | } |
768 | ||
f844f9eb | 769 | #ifndef FIPS_MODULE |
c3a4fa4c RL |
770 | if (old_infos != NULL) { |
771 | /* | |
772 | * This is hard to deal with, since the old infos could | |
773 | * also be set by this function and r, d, t should not | |
774 | * be freed in that case. So currently, stay consistent | |
775 | * with other *set0* functions: just free it... | |
776 | */ | |
777 | sk_RSA_PRIME_INFO_pop_free(old_infos, rsa_multip_info_free); | |
778 | } | |
afb638f1 | 779 | #endif |
c3a4fa4c RL |
780 | |
781 | r->version = pnum > 2 ? RSA_ASN1_VERSION_MULTI : RSA_ASN1_VERSION_DEFAULT; | |
782 | r->dirty_cnt++; | |
783 | ||
784 | return 1; | |
f844f9eb | 785 | #ifndef FIPS_MODULE |
c3a4fa4c RL |
786 | err: |
787 | /* r, d, t should not be freed */ | |
788 | sk_RSA_PRIME_INFO_pop_free(prime_infos, rsa_multip_info_free_ex); | |
789 | return 0; | |
afb638f1 | 790 | #endif |
c3a4fa4c RL |
791 | } |
792 | ||
793 | DEFINE_SPECIAL_STACK_OF_CONST(BIGNUM_const, BIGNUM) | |
794 | ||
795 | int rsa_get0_all_params(RSA *r, STACK_OF(BIGNUM_const) *primes, | |
796 | STACK_OF(BIGNUM_const) *exps, | |
797 | STACK_OF(BIGNUM_const) *coeffs) | |
798 | { | |
f844f9eb | 799 | #ifndef FIPS_MODULE |
c3a4fa4c RL |
800 | RSA_PRIME_INFO *pinfo; |
801 | int i, pnum; | |
afb638f1 | 802 | #endif |
c3a4fa4c RL |
803 | |
804 | if (r == NULL) | |
805 | return 0; | |
806 | ||
a9127c1d RL |
807 | /* If |p| is NULL, there are no CRT parameters */ |
808 | if (RSA_get0_p(r) == NULL) | |
809 | return 1; | |
810 | ||
c3a4fa4c RL |
811 | sk_BIGNUM_const_push(primes, RSA_get0_p(r)); |
812 | sk_BIGNUM_const_push(primes, RSA_get0_q(r)); | |
813 | sk_BIGNUM_const_push(exps, RSA_get0_dmp1(r)); | |
814 | sk_BIGNUM_const_push(exps, RSA_get0_dmq1(r)); | |
815 | sk_BIGNUM_const_push(coeffs, RSA_get0_iqmp(r)); | |
afb638f1 | 816 | |
f844f9eb | 817 | #ifndef FIPS_MODULE |
afb638f1 | 818 | pnum = RSA_get_multi_prime_extra_count(r); |
c3a4fa4c RL |
819 | for (i = 0; i < pnum; i++) { |
820 | pinfo = sk_RSA_PRIME_INFO_value(r->prime_infos, i); | |
821 | sk_BIGNUM_const_push(primes, pinfo->r); | |
822 | sk_BIGNUM_const_push(exps, pinfo->d); | |
823 | sk_BIGNUM_const_push(coeffs, pinfo->t); | |
824 | } | |
afb638f1 | 825 | #endif |
c3a4fa4c RL |
826 | |
827 | return 1; | |
828 | } | |
89abd1b6 | 829 | |
f844f9eb | 830 | #ifndef FIPS_MODULE |
89abd1b6 MC |
831 | int EVP_PKEY_CTX_set_rsa_padding(EVP_PKEY_CTX *ctx, int pad_mode) |
832 | { | |
833 | OSSL_PARAM pad_params[2], *p = pad_params; | |
834 | ||
835 | if (ctx == NULL) { | |
836 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
837 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
838 | return -2; | |
839 | } | |
840 | ||
841 | /* If key type not RSA or RSA-PSS return error */ | |
842 | if (ctx->pmeth != NULL | |
843 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA | |
844 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS) | |
845 | return -1; | |
846 | ||
847 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
6f4b7663 RL |
848 | if ((!EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) |
849 | || ctx->op.ciph.ciphprovctx == NULL) | |
850 | && (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
851 | || ctx->op.sig.sigprovctx == NULL)) | |
89abd1b6 MC |
852 | return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_RSA_PADDING, |
853 | pad_mode, NULL); | |
854 | ||
6f4b7663 | 855 | *p++ = OSSL_PARAM_construct_int(OSSL_PKEY_PARAM_PAD_MODE, &pad_mode); |
89abd1b6 MC |
856 | *p++ = OSSL_PARAM_construct_end(); |
857 | ||
858 | return EVP_PKEY_CTX_set_params(ctx, pad_params); | |
859 | } | |
860 | ||
861 | int EVP_PKEY_CTX_get_rsa_padding(EVP_PKEY_CTX *ctx, int *pad_mode) | |
862 | { | |
863 | OSSL_PARAM pad_params[2], *p = pad_params; | |
864 | ||
865 | if (ctx == NULL || pad_mode == NULL) { | |
866 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
867 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
868 | return -2; | |
869 | } | |
870 | ||
871 | /* If key type not RSA or RSA-PSS return error */ | |
872 | if (ctx->pmeth != NULL | |
873 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA | |
874 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS) | |
875 | return -1; | |
876 | ||
877 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
6f4b7663 RL |
878 | if ((!EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) |
879 | || ctx->op.ciph.ciphprovctx == NULL) | |
880 | && (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
881 | || ctx->op.sig.sigprovctx == NULL)) | |
89abd1b6 MC |
882 | return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_GET_RSA_PADDING, 0, |
883 | pad_mode); | |
884 | ||
6f4b7663 | 885 | *p++ = OSSL_PARAM_construct_int(OSSL_PKEY_PARAM_PAD_MODE, pad_mode); |
89abd1b6 MC |
886 | *p++ = OSSL_PARAM_construct_end(); |
887 | ||
888 | if (!EVP_PKEY_CTX_get_params(ctx, pad_params)) | |
889 | return 0; | |
890 | ||
891 | return 1; | |
892 | ||
893 | } | |
894 | ||
895 | int EVP_PKEY_CTX_set_rsa_oaep_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) | |
896 | { | |
897 | const char *name; | |
898 | ||
899 | if (ctx == NULL || !EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) { | |
900 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
901 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
902 | return -2; | |
903 | } | |
904 | ||
905 | /* If key type not RSA return error */ | |
906 | if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA) | |
907 | return -1; | |
908 | ||
909 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
910 | if (ctx->op.ciph.ciphprovctx == NULL) | |
911 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT, | |
912 | EVP_PKEY_CTRL_RSA_OAEP_MD, 0, (void *)md); | |
913 | ||
914 | name = (md == NULL) ? "" : EVP_MD_name(md); | |
915 | ||
916 | return EVP_PKEY_CTX_set_rsa_oaep_md_name(ctx, name, NULL); | |
917 | } | |
918 | ||
919 | int EVP_PKEY_CTX_set_rsa_oaep_md_name(EVP_PKEY_CTX *ctx, const char *mdname, | |
920 | const char *mdprops) | |
921 | { | |
922 | OSSL_PARAM rsa_params[3], *p = rsa_params; | |
923 | ||
924 | if (ctx == NULL || !EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) { | |
925 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
926 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
927 | return -2; | |
928 | } | |
929 | ||
930 | /* If key type not RSA return error */ | |
931 | if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA) | |
932 | return -1; | |
933 | ||
934 | ||
935 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST, | |
936 | /* | |
937 | * Cast away the const. This is read | |
938 | * only so should be safe | |
939 | */ | |
8b6ffd40 | 940 | (char *)mdname, 0); |
89abd1b6 MC |
941 | if (mdprops != NULL) { |
942 | *p++ = OSSL_PARAM_construct_utf8_string( | |
943 | OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST_PROPS, | |
944 | /* | |
945 | * Cast away the const. This is read | |
946 | * only so should be safe | |
947 | */ | |
8b6ffd40 | 948 | (char *)mdprops, 0); |
89abd1b6 MC |
949 | } |
950 | *p++ = OSSL_PARAM_construct_end(); | |
951 | ||
952 | return EVP_PKEY_CTX_set_params(ctx, rsa_params); | |
953 | } | |
954 | ||
955 | int EVP_PKEY_CTX_get_rsa_oaep_md_name(EVP_PKEY_CTX *ctx, char *name, | |
956 | size_t namelen) | |
957 | { | |
958 | OSSL_PARAM rsa_params[2], *p = rsa_params; | |
959 | ||
960 | if (ctx == NULL || !EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) { | |
961 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
962 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
963 | return -2; | |
964 | } | |
965 | ||
966 | /* If key type not RSA return error */ | |
967 | if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA) | |
968 | return -1; | |
969 | ||
970 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST, | |
971 | name, namelen); | |
972 | *p++ = OSSL_PARAM_construct_end(); | |
973 | ||
974 | if (!EVP_PKEY_CTX_get_params(ctx, rsa_params)) | |
975 | return -1; | |
976 | ||
977 | return 1; | |
978 | } | |
979 | ||
980 | int EVP_PKEY_CTX_get_rsa_oaep_md(EVP_PKEY_CTX *ctx, const EVP_MD **md) | |
981 | { | |
982 | /* 80 should be big enough */ | |
983 | char name[80] = ""; | |
984 | ||
985 | if (ctx == NULL || md == NULL || !EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) { | |
986 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
987 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
988 | return -2; | |
989 | } | |
990 | ||
991 | /* If key type not RSA return error */ | |
992 | if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA) | |
993 | return -1; | |
994 | ||
995 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
996 | if (ctx->op.ciph.ciphprovctx == NULL) | |
997 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT, | |
998 | EVP_PKEY_CTRL_GET_RSA_OAEP_MD, 0, (void *)md); | |
999 | ||
1000 | if (EVP_PKEY_CTX_get_rsa_oaep_md_name(ctx, name, sizeof(name)) <= 0) | |
1001 | return -1; | |
1002 | ||
1003 | /* May be NULL meaning "unknown" */ | |
1004 | *md = EVP_get_digestbyname(name); | |
1005 | ||
1006 | return 1; | |
1007 | } | |
1008 | ||
1009 | int EVP_PKEY_CTX_set_rsa_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) | |
1010 | { | |
1011 | const char *name; | |
1012 | ||
1013 | if (ctx == NULL | |
1014 | || (!EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
1015 | && !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx))) { | |
1016 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1017 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1018 | return -2; | |
1019 | } | |
1020 | ||
1021 | /* If key type not RSA return error */ | |
1022 | if (ctx->pmeth != NULL | |
1023 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA | |
1024 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS) | |
1025 | return -1; | |
1026 | ||
1027 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
1028 | if ((EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
1029 | && ctx->op.ciph.ciphprovctx == NULL) | |
1030 | || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
1031 | && ctx->op.sig.sigprovctx == NULL)) | |
1032 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, | |
1033 | EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT, | |
1034 | EVP_PKEY_CTRL_RSA_MGF1_MD, 0, (void *)md); | |
1035 | ||
1036 | name = (md == NULL) ? "" : EVP_MD_name(md); | |
1037 | ||
1038 | return EVP_PKEY_CTX_set_rsa_mgf1_md_name(ctx, name, NULL); | |
1039 | } | |
1040 | ||
1041 | int EVP_PKEY_CTX_set_rsa_mgf1_md_name(EVP_PKEY_CTX *ctx, const char *mdname, | |
1042 | const char *mdprops) | |
1043 | { | |
1044 | OSSL_PARAM rsa_params[3], *p = rsa_params; | |
1045 | ||
1046 | if (ctx == NULL | |
1047 | || mdname == NULL | |
1048 | || (!EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
1049 | && !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx))) { | |
1050 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1051 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1052 | return -2; | |
1053 | } | |
1054 | ||
1055 | /* If key type not RSA return error */ | |
1056 | if (ctx->pmeth != NULL | |
1057 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA | |
1058 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS) | |
1059 | return -1; | |
1060 | ||
6f4b7663 | 1061 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_MGF1_DIGEST, |
89abd1b6 | 1062 | /* |
6f4b7663 RL |
1063 | * Cast away the const. This is |
1064 | * read only so should be safe | |
89abd1b6 | 1065 | */ |
8b6ffd40 | 1066 | (char *)mdname, 0); |
89abd1b6 | 1067 | if (mdprops != NULL) { |
6f4b7663 RL |
1068 | *p++ = |
1069 | OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_MGF1_PROPERTIES, | |
1070 | /* | |
1071 | * Cast away the const. This is | |
1072 | * read only so should be safe | |
1073 | */ | |
1074 | (char *)mdprops, 0); | |
89abd1b6 MC |
1075 | } |
1076 | *p++ = OSSL_PARAM_construct_end(); | |
1077 | ||
1078 | return EVP_PKEY_CTX_set_params(ctx, rsa_params); | |
1079 | } | |
1080 | ||
1081 | int EVP_PKEY_CTX_get_rsa_mgf1_md_name(EVP_PKEY_CTX *ctx, char *name, | |
1082 | size_t namelen) | |
1083 | { | |
1084 | OSSL_PARAM rsa_params[2], *p = rsa_params; | |
1085 | ||
1086 | if (ctx == NULL | |
1087 | || (!EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
1088 | && !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx))) { | |
1089 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1090 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1091 | return -2; | |
1092 | } | |
1093 | ||
1094 | /* If key type not RSA or RSA-PSS return error */ | |
1095 | if (ctx->pmeth != NULL | |
1096 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA | |
1097 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS) | |
1098 | return -1; | |
1099 | ||
6f4b7663 | 1100 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_MGF1_DIGEST, |
89abd1b6 MC |
1101 | name, namelen); |
1102 | *p++ = OSSL_PARAM_construct_end(); | |
1103 | ||
1104 | if (!EVP_PKEY_CTX_get_params(ctx, rsa_params)) | |
1105 | return -1; | |
1106 | ||
1107 | return 1; | |
1108 | } | |
1109 | ||
1110 | int EVP_PKEY_CTX_get_rsa_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD **md) | |
1111 | { | |
1112 | /* 80 should be big enough */ | |
1113 | char name[80] = ""; | |
1114 | ||
1115 | if (ctx == NULL | |
1116 | || (!EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
1117 | && !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx))) { | |
1118 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1119 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1120 | return -2; | |
1121 | } | |
1122 | ||
1123 | /* If key type not RSA or RSA-PSS return error */ | |
1124 | if (ctx->pmeth != NULL | |
1125 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA | |
1126 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS) | |
1127 | return -1; | |
1128 | ||
1129 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
1130 | if ((EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
1131 | && ctx->op.ciph.ciphprovctx == NULL) | |
1132 | || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
1133 | && ctx->op.sig.sigprovctx == NULL)) | |
1134 | return EVP_PKEY_CTX_ctrl(ctx, -1, | |
1135 | EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT, | |
1136 | EVP_PKEY_CTRL_GET_RSA_MGF1_MD, 0, (void *)md); | |
1137 | ||
1138 | if (EVP_PKEY_CTX_get_rsa_mgf1_md_name(ctx, name, sizeof(name)) <= 0) | |
1139 | return -1; | |
1140 | ||
1141 | /* May be NULL meaning "unknown" */ | |
1142 | *md = EVP_get_digestbyname(name); | |
1143 | ||
1144 | return 1; | |
1145 | } | |
1146 | ||
1147 | int EVP_PKEY_CTX_set0_rsa_oaep_label(EVP_PKEY_CTX *ctx, void *label, int llen) | |
1148 | { | |
1149 | OSSL_PARAM rsa_params[2], *p = rsa_params; | |
1150 | ||
1151 | if (ctx == NULL || !EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) { | |
1152 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1153 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1154 | return -2; | |
1155 | } | |
1156 | ||
1157 | /* If key type not RSA return error */ | |
1158 | if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA) | |
1159 | return -1; | |
1160 | ||
1161 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
1162 | if (ctx->op.ciph.ciphprovctx == NULL) | |
1163 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT, | |
1164 | EVP_PKEY_CTRL_RSA_OAEP_LABEL, llen, | |
1165 | (void *)label); | |
1166 | ||
1167 | *p++ = OSSL_PARAM_construct_octet_string(OSSL_ASYM_CIPHER_PARAM_OAEP_LABEL, | |
6f4b7663 RL |
1168 | /* |
1169 | * Cast away the const. This is | |
1170 | * read only so should be safe | |
1171 | */ | |
1172 | (void *)label, | |
1173 | (size_t)llen); | |
89abd1b6 MC |
1174 | *p++ = OSSL_PARAM_construct_end(); |
1175 | ||
1176 | if (!EVP_PKEY_CTX_set_params(ctx, rsa_params)) | |
1177 | return 0; | |
1178 | ||
1179 | OPENSSL_free(label); | |
1180 | return 1; | |
1181 | } | |
1182 | ||
1183 | int EVP_PKEY_CTX_get0_rsa_oaep_label(EVP_PKEY_CTX *ctx, unsigned char **label) | |
1184 | { | |
1185 | OSSL_PARAM rsa_params[3], *p = rsa_params; | |
1186 | size_t labellen; | |
1187 | ||
1188 | if (ctx == NULL || !EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) { | |
1189 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1190 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1191 | return -2; | |
1192 | } | |
1193 | ||
1194 | /* If key type not RSA return error */ | |
1195 | if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA) | |
1196 | return -1; | |
1197 | ||
1198 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
1199 | if (ctx->op.ciph.ciphprovctx == NULL) | |
1200 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT, | |
1201 | EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL, 0, | |
1202 | (void *)label); | |
1203 | ||
1204 | *p++ = OSSL_PARAM_construct_octet_ptr(OSSL_ASYM_CIPHER_PARAM_OAEP_LABEL, | |
1205 | (void **)label, 0); | |
1206 | *p++ = OSSL_PARAM_construct_size_t(OSSL_ASYM_CIPHER_PARAM_OAEP_LABEL_LEN, | |
1207 | &labellen); | |
1208 | *p++ = OSSL_PARAM_construct_end(); | |
1209 | ||
1210 | if (!EVP_PKEY_CTX_get_params(ctx, rsa_params)) | |
1211 | return -1; | |
1212 | ||
1213 | if (labellen > INT_MAX) | |
1214 | return -1; | |
1215 | ||
1216 | return (int)labellen; | |
1217 | } | |
6f4b7663 RL |
1218 | |
1219 | int EVP_PKEY_CTX_set_rsa_pss_saltlen(EVP_PKEY_CTX *ctx, int saltlen) | |
1220 | { | |
1221 | OSSL_PARAM pad_params[2], *p = pad_params; | |
1222 | ||
1223 | if (ctx == NULL) { | |
1224 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1225 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1226 | return -2; | |
1227 | } | |
1228 | ||
1229 | /* If key type not RSA or RSA-PSS return error */ | |
1230 | if (ctx->pmeth != NULL | |
1231 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA | |
1232 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS) | |
1233 | return -1; | |
1234 | ||
1235 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
1236 | if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
1237 | || ctx->op.sig.sigprovctx == NULL) | |
1238 | return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_RSA_PSS_SALTLEN, | |
1239 | saltlen, NULL); | |
1240 | ||
1241 | *p++ = | |
1242 | OSSL_PARAM_construct_int(OSSL_SIGNATURE_PARAM_PSS_SALTLEN, &saltlen); | |
1243 | *p++ = OSSL_PARAM_construct_end(); | |
1244 | ||
1245 | return EVP_PKEY_CTX_set_params(ctx, pad_params); | |
1246 | } | |
1247 | ||
1248 | int EVP_PKEY_CTX_get_rsa_pss_saltlen(EVP_PKEY_CTX *ctx, int *saltlen) | |
1249 | { | |
1250 | OSSL_PARAM pad_params[2], *p = pad_params; | |
1251 | ||
1252 | if (ctx == NULL || saltlen == NULL) { | |
1253 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1254 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1255 | return -2; | |
1256 | } | |
1257 | ||
1258 | /* If key type not RSA or RSA-PSS return error */ | |
1259 | if (ctx->pmeth != NULL | |
1260 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA | |
1261 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS) | |
1262 | return -1; | |
1263 | ||
1264 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
1265 | if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
1266 | || ctx->op.sig.sigprovctx == NULL) | |
1267 | return EVP_PKEY_CTX_ctrl(ctx, -1, -1, | |
1268 | EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN, | |
1269 | 0, saltlen); | |
1270 | ||
1271 | *p++ = | |
1272 | OSSL_PARAM_construct_int(OSSL_SIGNATURE_PARAM_PSS_SALTLEN, saltlen); | |
1273 | *p++ = OSSL_PARAM_construct_end(); | |
1274 | ||
1275 | if (!EVP_PKEY_CTX_get_params(ctx, pad_params)) | |
1276 | return 0; | |
1277 | ||
1278 | return 1; | |
1279 | ||
1280 | } | |
2972af10 RL |
1281 | |
1282 | int EVP_PKEY_CTX_set_rsa_keygen_bits(EVP_PKEY_CTX *ctx, int bits) | |
1283 | { | |
1284 | OSSL_PARAM params[2], *p = params; | |
1285 | size_t bits2 = bits; | |
1286 | ||
1287 | if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) { | |
1288 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1289 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1290 | return -2; | |
1291 | } | |
1292 | ||
1293 | /* If key type not RSA return error */ | |
1294 | if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA) | |
1295 | return -1; | |
1296 | ||
1297 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
1298 | if (ctx->op.keymgmt.genctx == NULL) | |
1299 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, | |
1300 | EVP_PKEY_CTRL_RSA_KEYGEN_BITS, bits, NULL); | |
1301 | ||
1302 | *p++ = OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_RSA_BITS, &bits2); | |
1303 | *p++ = OSSL_PARAM_construct_end(); | |
1304 | ||
1305 | if (!EVP_PKEY_CTX_set_params(ctx, params)) | |
1306 | return 0; | |
1307 | ||
1308 | return 1; | |
1309 | } | |
1310 | ||
1311 | int EVP_PKEY_CTX_set_rsa_keygen_pubexp(EVP_PKEY_CTX *ctx, BIGNUM *pubexp) | |
1312 | { | |
6d4e6009 | 1313 | OSSL_PARAM_BLD *tmpl; |
2972af10 RL |
1314 | OSSL_PARAM *params; |
1315 | int ret; | |
1316 | ||
1317 | if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) { | |
1318 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1319 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1320 | return -2; | |
1321 | } | |
1322 | ||
1323 | /* If key type not RSA return error */ | |
1324 | if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA) | |
1325 | return -1; | |
1326 | ||
1327 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
1328 | if (ctx->op.keymgmt.genctx == NULL) | |
1329 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, | |
1330 | EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP, 0, pubexp); | |
1331 | ||
6d4e6009 | 1332 | if ((tmpl = OSSL_PARAM_BLD_new()) == NULL) |
2972af10 | 1333 | return 0; |
6d4e6009 P |
1334 | if (!OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_RSA_E, pubexp) |
1335 | || (params = OSSL_PARAM_BLD_to_param(tmpl)) == NULL) { | |
1336 | OSSL_PARAM_BLD_free(tmpl); | |
1337 | return 0; | |
1338 | } | |
1339 | OSSL_PARAM_BLD_free(tmpl); | |
2972af10 RL |
1340 | |
1341 | ret = EVP_PKEY_CTX_set_params(ctx, params); | |
6d4e6009 | 1342 | OSSL_PARAM_BLD_free_params(params); |
2972af10 RL |
1343 | return ret; |
1344 | } | |
1345 | ||
1346 | int EVP_PKEY_CTX_set_rsa_keygen_primes(EVP_PKEY_CTX *ctx, int primes) | |
1347 | { | |
1348 | OSSL_PARAM params[2], *p = params; | |
1349 | size_t primes2 = primes; | |
1350 | ||
1351 | if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) { | |
1352 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
1353 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1354 | return -2; | |
1355 | } | |
1356 | ||
1357 | /* If key type not RSA return error */ | |
1358 | if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA) | |
1359 | return -1; | |
1360 | ||
1361 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
1362 | if (ctx->op.keymgmt.genctx == NULL) | |
1363 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, | |
1364 | EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES, primes, | |
1365 | NULL); | |
1366 | ||
1367 | *p++ = OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_RSA_PRIMES, &primes2); | |
1368 | *p++ = OSSL_PARAM_construct_end(); | |
1369 | ||
1370 | if (!EVP_PKEY_CTX_set_params(ctx, params)) | |
1371 | return 0; | |
1372 | ||
1373 | return 1; | |
1374 | } | |
afb638f1 | 1375 | #endif |