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Commit | Line | Data |
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0f113f3e | 1 | /* |
4333b89f | 2 | * Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved. |
448be743 | 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 | |
448be743 DSH |
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 | ||
448be743 | 16 | #include <stdio.h> |
b39fc560 | 17 | #include "internal/cryptlib.h" |
448be743 DSH |
18 | #include <openssl/asn1t.h> |
19 | #include <openssl/x509.h> | |
1e26a8ba | 20 | #include <openssl/bn.h> |
29be6023 | 21 | #include <openssl/core_names.h> |
96ebe52e | 22 | #include <openssl/param_build.h> |
25f2138b DMSP |
23 | #include "crypto/asn1.h" |
24 | #include "crypto/evp.h" | |
29be6023 | 25 | #include "crypto/rsa.h" |
706457b7 | 26 | #include "rsa_local.h" |
448be743 | 27 | |
42009ae8 DSH |
28 | /* Set any parameters associated with pkey */ |
29 | static int rsa_param_encode(const EVP_PKEY *pkey, | |
30 | ASN1_STRING **pstr, int *pstrtype) | |
31 | { | |
32 | const RSA *rsa = pkey->pkey.rsa; | |
52ad523c | 33 | |
42009ae8 DSH |
34 | *pstr = NULL; |
35 | /* If RSA it's just NULL type */ | |
484d1a73 | 36 | if (RSA_test_flags(rsa, RSA_FLAG_TYPE_MASK) != RSA_FLAG_TYPE_RSASSAPSS) { |
42009ae8 DSH |
37 | *pstrtype = V_ASN1_NULL; |
38 | return 1; | |
39 | } | |
40 | /* If no PSS parameters we omit parameters entirely */ | |
41 | if (rsa->pss == NULL) { | |
42 | *pstrtype = V_ASN1_UNDEF; | |
43 | return 1; | |
44 | } | |
45 | /* Encode PSS parameters */ | |
f291138b | 46 | if (ASN1_item_pack(rsa->pss, ASN1_ITEM_rptr(RSA_PSS_PARAMS), pstr) == NULL) |
42009ae8 | 47 | return 0; |
42009ae8 DSH |
48 | |
49 | *pstrtype = V_ASN1_SEQUENCE; | |
50 | return 1; | |
51 | } | |
52 | /* Decode any parameters and set them in RSA structure */ | |
6f81892e | 53 | static int rsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey) |
0f113f3e MC |
54 | { |
55 | unsigned char *penc = NULL; | |
56 | int penclen; | |
42009ae8 DSH |
57 | ASN1_STRING *str; |
58 | int strtype; | |
52ad523c | 59 | |
42009ae8 DSH |
60 | if (!rsa_param_encode(pkey, &str, &strtype)) |
61 | return 0; | |
0f113f3e MC |
62 | penclen = i2d_RSAPublicKey(pkey->pkey.rsa, &penc); |
63 | if (penclen <= 0) | |
64 | return 0; | |
42009ae8 DSH |
65 | if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(pkey->ameth->pkey_id), |
66 | strtype, str, penc, penclen)) | |
0f113f3e MC |
67 | return 1; |
68 | ||
69 | OPENSSL_free(penc); | |
70 | return 0; | |
71 | } | |
448be743 | 72 | |
7674e923 | 73 | static int rsa_pub_decode(EVP_PKEY *pkey, const X509_PUBKEY *pubkey) |
0f113f3e MC |
74 | { |
75 | const unsigned char *p; | |
76 | int pklen; | |
42009ae8 | 77 | X509_ALGOR *alg; |
0f113f3e | 78 | RSA *rsa = NULL; |
75ebbd9a | 79 | |
42009ae8 | 80 | if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &alg, pubkey)) |
0f113f3e | 81 | return 0; |
29844ea5 | 82 | if ((rsa = d2i_RSAPublicKey(NULL, &p, pklen)) == NULL) |
0f113f3e | 83 | return 0; |
cf333799 | 84 | if (!ossl_rsa_param_decode(rsa, alg)) { |
42009ae8 DSH |
85 | RSA_free(rsa); |
86 | return 0; | |
87 | } | |
a6495479 RL |
88 | |
89 | RSA_clear_flags(rsa, RSA_FLAG_TYPE_MASK); | |
90 | switch (pkey->ameth->pkey_id) { | |
91 | case EVP_PKEY_RSA: | |
92 | RSA_set_flags(rsa, RSA_FLAG_TYPE_RSA); | |
93 | break; | |
94 | case EVP_PKEY_RSA_PSS: | |
95 | RSA_set_flags(rsa, RSA_FLAG_TYPE_RSASSAPSS); | |
96 | break; | |
97 | default: | |
98 | /* Leave the type bits zero */ | |
99 | break; | |
100 | } | |
101 | ||
1f483a69 BE |
102 | if (!EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, rsa)) { |
103 | RSA_free(rsa); | |
104 | return 0; | |
105 | } | |
0f113f3e MC |
106 | return 1; |
107 | } | |
448be743 | 108 | |
6f81892e | 109 | static int rsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b) |
0f113f3e | 110 | { |
36871717 NA |
111 | /* |
112 | * Don't check the public/private key, this is mostly for smart | |
113 | * cards. | |
114 | */ | |
115 | if (((RSA_flags(a->pkey.rsa) & RSA_METHOD_FLAG_NO_CHECK)) | |
116 | || (RSA_flags(b->pkey.rsa) & RSA_METHOD_FLAG_NO_CHECK)) { | |
117 | return 1; | |
118 | } | |
119 | ||
0f113f3e MC |
120 | if (BN_cmp(b->pkey.rsa->n, a->pkey.rsa->n) != 0 |
121 | || BN_cmp(b->pkey.rsa->e, a->pkey.rsa->e) != 0) | |
122 | return 0; | |
123 | return 1; | |
124 | } | |
6f81892e | 125 | |
e4263314 | 126 | static int old_rsa_priv_decode(EVP_PKEY *pkey, |
0f113f3e MC |
127 | const unsigned char **pder, int derlen) |
128 | { | |
129 | RSA *rsa; | |
75ebbd9a | 130 | |
29844ea5 | 131 | if ((rsa = d2i_RSAPrivateKey(NULL, pder, derlen)) == NULL) |
0f113f3e | 132 | return 0; |
faa02fe2 | 133 | EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, rsa); |
0f113f3e MC |
134 | return 1; |
135 | } | |
448be743 | 136 | |
e4263314 | 137 | static int old_rsa_priv_encode(const EVP_PKEY *pkey, unsigned char **pder) |
0f113f3e MC |
138 | { |
139 | return i2d_RSAPrivateKey(pkey->pkey.rsa, pder); | |
140 | } | |
e4263314 | 141 | |
6f81892e | 142 | static int rsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey) |
0f113f3e MC |
143 | { |
144 | unsigned char *rk = NULL; | |
145 | int rklen; | |
42009ae8 DSH |
146 | ASN1_STRING *str; |
147 | int strtype; | |
52ad523c | 148 | |
42009ae8 DSH |
149 | if (!rsa_param_encode(pkey, &str, &strtype)) |
150 | return 0; | |
0f113f3e MC |
151 | rklen = i2d_RSAPrivateKey(pkey->pkey.rsa, &rk); |
152 | ||
153 | if (rklen <= 0) { | |
9311d0c4 | 154 | ERR_raise(ERR_LIB_RSA, ERR_R_MALLOC_FAILURE); |
285c7d9c | 155 | ASN1_STRING_free(str); |
0f113f3e MC |
156 | return 0; |
157 | } | |
158 | ||
faa02fe2 | 159 | if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(pkey->ameth->pkey_id), 0, |
42009ae8 | 160 | strtype, str, rk, rklen)) { |
9311d0c4 | 161 | ERR_raise(ERR_LIB_RSA, ERR_R_MALLOC_FAILURE); |
285c7d9c | 162 | ASN1_STRING_free(str); |
0f113f3e MC |
163 | return 0; |
164 | } | |
165 | ||
166 | return 1; | |
167 | } | |
448be743 | 168 | |
245c6bc3 | 169 | static int rsa_priv_decode(EVP_PKEY *pkey, const PKCS8_PRIV_KEY_INFO *p8) |
0f113f3e | 170 | { |
cf333799 RL |
171 | int ret = 0; |
172 | RSA *rsa = ossl_rsa_key_from_pkcs8(p8, NULL, NULL); | |
42009ae8 | 173 | |
cf333799 RL |
174 | if (rsa != NULL) { |
175 | ret = 1; | |
176 | EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, rsa); | |
42009ae8 | 177 | } |
cf333799 | 178 | return ret; |
0f113f3e | 179 | } |
e4263314 | 180 | |
6f81892e | 181 | static int int_rsa_size(const EVP_PKEY *pkey) |
0f113f3e MC |
182 | { |
183 | return RSA_size(pkey->pkey.rsa); | |
184 | } | |
6f81892e DSH |
185 | |
186 | static int rsa_bits(const EVP_PKEY *pkey) | |
0f113f3e MC |
187 | { |
188 | return BN_num_bits(pkey->pkey.rsa->n); | |
189 | } | |
6f81892e | 190 | |
2514fa79 | 191 | static int rsa_security_bits(const EVP_PKEY *pkey) |
0f113f3e MC |
192 | { |
193 | return RSA_security_bits(pkey->pkey.rsa); | |
194 | } | |
2514fa79 | 195 | |
6f81892e | 196 | static void int_rsa_free(EVP_PKEY *pkey) |
0f113f3e MC |
197 | { |
198 | RSA_free(pkey->pkey.rsa); | |
199 | } | |
35208f36 | 200 | |
9503ed8b DSH |
201 | static int rsa_pss_param_print(BIO *bp, int pss_key, RSA_PSS_PARAMS *pss, |
202 | int indent) | |
203 | { | |
204 | int rv = 0; | |
205 | X509_ALGOR *maskHash = NULL; | |
52ad523c | 206 | |
9503ed8b DSH |
207 | if (!BIO_indent(bp, indent, 128)) |
208 | goto err; | |
209 | if (pss_key) { | |
210 | if (pss == NULL) { | |
211 | if (BIO_puts(bp, "No PSS parameter restrictions\n") <= 0) | |
212 | return 0; | |
213 | return 1; | |
214 | } else { | |
215 | if (BIO_puts(bp, "PSS parameter restrictions:") <= 0) | |
216 | return 0; | |
217 | } | |
218 | } else if (pss == NULL) { | |
1287dabd | 219 | if (BIO_puts(bp, "(INVALID PSS PARAMETERS)\n") <= 0) |
9503ed8b DSH |
220 | return 0; |
221 | return 1; | |
222 | } | |
223 | if (BIO_puts(bp, "\n") <= 0) | |
224 | goto err; | |
225 | if (pss_key) | |
226 | indent += 2; | |
227 | if (!BIO_indent(bp, indent, 128)) | |
228 | goto err; | |
229 | if (BIO_puts(bp, "Hash Algorithm: ") <= 0) | |
230 | goto err; | |
231 | ||
232 | if (pss->hashAlgorithm) { | |
233 | if (i2a_ASN1_OBJECT(bp, pss->hashAlgorithm->algorithm) <= 0) | |
234 | goto err; | |
90862ab4 | 235 | } else if (BIO_puts(bp, "sha1 (default)") <= 0) { |
9503ed8b | 236 | goto err; |
90862ab4 | 237 | } |
9503ed8b DSH |
238 | |
239 | if (BIO_puts(bp, "\n") <= 0) | |
240 | goto err; | |
241 | ||
242 | if (!BIO_indent(bp, indent, 128)) | |
243 | goto err; | |
244 | ||
245 | if (BIO_puts(bp, "Mask Algorithm: ") <= 0) | |
246 | goto err; | |
247 | if (pss->maskGenAlgorithm) { | |
248 | if (i2a_ASN1_OBJECT(bp, pss->maskGenAlgorithm->algorithm) <= 0) | |
249 | goto err; | |
250 | if (BIO_puts(bp, " with ") <= 0) | |
251 | goto err; | |
adf7e6d1 | 252 | maskHash = ossl_x509_algor_mgf1_decode(pss->maskGenAlgorithm); |
9503ed8b DSH |
253 | if (maskHash != NULL) { |
254 | if (i2a_ASN1_OBJECT(bp, maskHash->algorithm) <= 0) | |
255 | goto err; | |
90862ab4 | 256 | } else if (BIO_puts(bp, "INVALID") <= 0) { |
9503ed8b | 257 | goto err; |
90862ab4 PY |
258 | } |
259 | } else if (BIO_puts(bp, "mgf1 with sha1 (default)") <= 0) { | |
9503ed8b | 260 | goto err; |
90862ab4 | 261 | } |
9503ed8b DSH |
262 | BIO_puts(bp, "\n"); |
263 | ||
264 | if (!BIO_indent(bp, indent, 128)) | |
265 | goto err; | |
266 | if (BIO_printf(bp, "%s Salt Length: 0x", pss_key ? "Minimum" : "") <= 0) | |
267 | goto err; | |
268 | if (pss->saltLength) { | |
269 | if (i2a_ASN1_INTEGER(bp, pss->saltLength) <= 0) | |
270 | goto err; | |
90862ab4 | 271 | } else if (BIO_puts(bp, "14 (default)") <= 0) { |
9503ed8b | 272 | goto err; |
90862ab4 | 273 | } |
9503ed8b DSH |
274 | BIO_puts(bp, "\n"); |
275 | ||
276 | if (!BIO_indent(bp, indent, 128)) | |
277 | goto err; | |
278 | if (BIO_puts(bp, "Trailer Field: 0x") <= 0) | |
279 | goto err; | |
280 | if (pss->trailerField) { | |
281 | if (i2a_ASN1_INTEGER(bp, pss->trailerField) <= 0) | |
282 | goto err; | |
814581bb | 283 | } else if (BIO_puts(bp, "01 (default)") <= 0) { |
9503ed8b | 284 | goto err; |
90862ab4 | 285 | } |
9503ed8b DSH |
286 | BIO_puts(bp, "\n"); |
287 | ||
288 | rv = 1; | |
289 | ||
290 | err: | |
291 | X509_ALGOR_free(maskHash); | |
292 | return rv; | |
293 | ||
294 | } | |
295 | ||
296 | static int pkey_rsa_print(BIO *bp, const EVP_PKEY *pkey, int off, int priv) | |
0f113f3e | 297 | { |
9503ed8b | 298 | const RSA *x = pkey->pkey.rsa; |
0f113f3e MC |
299 | char *str; |
300 | const char *s; | |
665d899f | 301 | int ret = 0, mod_len = 0, ex_primes; |
0f113f3e MC |
302 | |
303 | if (x->n != NULL) | |
304 | mod_len = BN_num_bits(x->n); | |
665d899f | 305 | ex_primes = sk_RSA_PRIME_INFO_num(x->prime_infos); |
0f113f3e MC |
306 | |
307 | if (!BIO_indent(bp, off, 128)) | |
308 | goto err; | |
309 | ||
87ee7b22 | 310 | if (BIO_printf(bp, "%s ", pkey_is_pss(pkey) ? "RSA-PSS" : "RSA") <= 0) |
9503ed8b DSH |
311 | goto err; |
312 | ||
0f113f3e | 313 | if (priv && x->d) { |
665d899f PY |
314 | if (BIO_printf(bp, "Private-Key: (%d bit, %d primes)\n", |
315 | mod_len, ex_primes <= 0 ? 2 : ex_primes + 2) <= 0) | |
0f113f3e MC |
316 | goto err; |
317 | str = "modulus:"; | |
318 | s = "publicExponent:"; | |
319 | } else { | |
a773b52a | 320 | if (BIO_printf(bp, "Public-Key: (%d bit)\n", mod_len) <= 0) |
0f113f3e MC |
321 | goto err; |
322 | str = "Modulus:"; | |
323 | s = "Exponent:"; | |
324 | } | |
a773b52a | 325 | if (!ASN1_bn_print(bp, str, x->n, NULL, off)) |
0f113f3e | 326 | goto err; |
a773b52a | 327 | if (!ASN1_bn_print(bp, s, x->e, NULL, off)) |
0f113f3e MC |
328 | goto err; |
329 | if (priv) { | |
665d899f PY |
330 | int i; |
331 | ||
a773b52a | 332 | if (!ASN1_bn_print(bp, "privateExponent:", x->d, NULL, off)) |
0f113f3e | 333 | goto err; |
a773b52a | 334 | if (!ASN1_bn_print(bp, "prime1:", x->p, NULL, off)) |
0f113f3e | 335 | goto err; |
a773b52a | 336 | if (!ASN1_bn_print(bp, "prime2:", x->q, NULL, off)) |
0f113f3e | 337 | goto err; |
a773b52a | 338 | if (!ASN1_bn_print(bp, "exponent1:", x->dmp1, NULL, off)) |
0f113f3e | 339 | goto err; |
a773b52a | 340 | if (!ASN1_bn_print(bp, "exponent2:", x->dmq1, NULL, off)) |
0f113f3e | 341 | goto err; |
a773b52a | 342 | if (!ASN1_bn_print(bp, "coefficient:", x->iqmp, NULL, off)) |
0f113f3e | 343 | goto err; |
665d899f PY |
344 | for (i = 0; i < sk_RSA_PRIME_INFO_num(x->prime_infos); i++) { |
345 | /* print multi-prime info */ | |
346 | BIGNUM *bn = NULL; | |
347 | RSA_PRIME_INFO *pinfo; | |
348 | int j; | |
349 | ||
350 | pinfo = sk_RSA_PRIME_INFO_value(x->prime_infos, i); | |
351 | for (j = 0; j < 3; j++) { | |
352 | if (!BIO_indent(bp, off, 128)) | |
353 | goto err; | |
354 | switch (j) { | |
355 | case 0: | |
356 | if (BIO_printf(bp, "prime%d:", i + 3) <= 0) | |
357 | goto err; | |
358 | bn = pinfo->r; | |
359 | break; | |
360 | case 1: | |
361 | if (BIO_printf(bp, "exponent%d:", i + 3) <= 0) | |
362 | goto err; | |
363 | bn = pinfo->d; | |
364 | break; | |
365 | case 2: | |
366 | if (BIO_printf(bp, "coefficient%d:", i + 3) <= 0) | |
367 | goto err; | |
368 | bn = pinfo->t; | |
369 | break; | |
370 | default: | |
371 | break; | |
372 | } | |
373 | if (!ASN1_bn_print(bp, "", bn, NULL, off)) | |
374 | goto err; | |
375 | } | |
376 | } | |
0f113f3e | 377 | } |
87ee7b22 | 378 | if (pkey_is_pss(pkey) && !rsa_pss_param_print(bp, 1, x->pss, off)) |
9503ed8b | 379 | goto err; |
0f113f3e MC |
380 | ret = 1; |
381 | err: | |
9503ed8b | 382 | return ret; |
0f113f3e | 383 | } |
35208f36 DSH |
384 | |
385 | static int rsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent, | |
0f113f3e MC |
386 | ASN1_PCTX *ctx) |
387 | { | |
9503ed8b | 388 | return pkey_rsa_print(bp, pkey, indent, 0); |
0f113f3e | 389 | } |
35208f36 DSH |
390 | |
391 | static int rsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent, | |
0f113f3e MC |
392 | ASN1_PCTX *ctx) |
393 | { | |
9503ed8b | 394 | return pkey_rsa_print(bp, pkey, indent, 1); |
0f113f3e | 395 | } |
0574cadf | 396 | |
ff04bbe3 | 397 | static int rsa_sig_print(BIO *bp, const X509_ALGOR *sigalg, |
0f113f3e MC |
398 | const ASN1_STRING *sig, int indent, ASN1_PCTX *pctx) |
399 | { | |
ffc6fad5 | 400 | if (OBJ_obj2nid(sigalg->algorithm) == EVP_PKEY_RSA_PSS) { |
0f113f3e | 401 | int rv; |
cf333799 | 402 | RSA_PSS_PARAMS *pss = ossl_rsa_pss_decode(sigalg); |
c82bafc5 | 403 | |
9503ed8b | 404 | rv = rsa_pss_param_print(bp, 0, pss, indent); |
25aaa98a | 405 | RSA_PSS_PARAMS_free(pss); |
0f113f3e MC |
406 | if (!rv) |
407 | return 0; | |
a4c467c9 | 408 | } else if (BIO_puts(bp, "\n") <= 0) { |
0f113f3e | 409 | return 0; |
52ad523c | 410 | } |
0f113f3e MC |
411 | if (sig) |
412 | return X509_signature_dump(bp, sig, indent); | |
413 | return 1; | |
414 | } | |
492a9e24 DSH |
415 | |
416 | static int rsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2) | |
0f113f3e | 417 | { |
9bcc9f97 MC |
418 | const EVP_MD *md; |
419 | const EVP_MD *mgf1md; | |
420 | int min_saltlen; | |
52ad523c | 421 | |
0f113f3e | 422 | switch (op) { |
0f113f3e | 423 | case ASN1_PKEY_CTRL_DEFAULT_MD_NID: |
9bcc9f97 | 424 | if (pkey->pkey.rsa->pss != NULL) { |
4158b0dc SL |
425 | if (!ossl_rsa_pss_get_param(pkey->pkey.rsa->pss, &md, &mgf1md, |
426 | &min_saltlen)) { | |
9311d0c4 | 427 | ERR_raise(ERR_LIB_RSA, ERR_R_INTERNAL_ERROR); |
9bcc9f97 MC |
428 | return 0; |
429 | } | |
ed576acd | 430 | *(int *)arg2 = EVP_MD_get_type(md); |
9bcc9f97 MC |
431 | /* Return of 2 indicates this MD is mandatory */ |
432 | return 2; | |
433 | } | |
0f113f3e MC |
434 | *(int *)arg2 = NID_sha256; |
435 | return 1; | |
03919683 | 436 | |
0f113f3e MC |
437 | default: |
438 | return -2; | |
0f113f3e | 439 | } |
0f113f3e | 440 | } |
492a9e24 | 441 | |
0f113f3e | 442 | /* |
47e42b3c | 443 | * Convert EVP_PKEY_CTX in PSS mode into corresponding algorithm parameter, |
0574cadf | 444 | * suitable for setting an AlgorithmIdentifier. |
31904ecd DSH |
445 | */ |
446 | ||
47e42b3c | 447 | static RSA_PSS_PARAMS *rsa_ctx_to_pss(EVP_PKEY_CTX *pkctx) |
0f113f3e MC |
448 | { |
449 | const EVP_MD *sigmd, *mgf1md; | |
0f113f3e | 450 | EVP_PKEY *pk = EVP_PKEY_CTX_get0_pkey(pkctx); |
47e42b3c | 451 | int saltlen; |
52ad523c | 452 | |
0f113f3e | 453 | if (EVP_PKEY_CTX_get_signature_md(pkctx, &sigmd) <= 0) |
47e42b3c | 454 | return NULL; |
0f113f3e | 455 | if (EVP_PKEY_CTX_get_rsa_mgf1_md(pkctx, &mgf1md) <= 0) |
47e42b3c | 456 | return NULL; |
0f113f3e | 457 | if (!EVP_PKEY_CTX_get_rsa_pss_saltlen(pkctx, &saltlen)) |
47e42b3c | 458 | return NULL; |
90862ab4 | 459 | if (saltlen == -1) { |
ed576acd | 460 | saltlen = EVP_MD_get_size(sigmd); |
491360e7 | 461 | } else if (saltlen == -2 || saltlen == -3) { |
ed576acd TM |
462 | saltlen = EVP_PKEY_get_size(pk) - EVP_MD_get_size(sigmd) - 2; |
463 | if ((EVP_PKEY_get_bits(pk) & 0x7) == 1) | |
0f113f3e | 464 | saltlen--; |
491360e7 BE |
465 | if (saltlen < 0) |
466 | return NULL; | |
0f113f3e | 467 | } |
47e42b3c | 468 | |
4158b0dc | 469 | return ossl_rsa_pss_params_create(sigmd, mgf1md, saltlen); |
47e42b3c DSH |
470 | } |
471 | ||
4158b0dc SL |
472 | RSA_PSS_PARAMS *ossl_rsa_pss_params_create(const EVP_MD *sigmd, |
473 | const EVP_MD *mgf1md, int saltlen) | |
47e42b3c DSH |
474 | { |
475 | RSA_PSS_PARAMS *pss = RSA_PSS_PARAMS_new(); | |
52ad523c | 476 | |
90945fa3 | 477 | if (pss == NULL) |
0f113f3e MC |
478 | goto err; |
479 | if (saltlen != 20) { | |
480 | pss->saltLength = ASN1_INTEGER_new(); | |
90945fa3 | 481 | if (pss->saltLength == NULL) |
0f113f3e MC |
482 | goto err; |
483 | if (!ASN1_INTEGER_set(pss->saltLength, saltlen)) | |
484 | goto err; | |
485 | } | |
adf7e6d1 | 486 | if (!ossl_x509_algor_new_from_md(&pss->hashAlgorithm, sigmd)) |
0f113f3e | 487 | goto err; |
47e42b3c | 488 | if (mgf1md == NULL) |
b6b885c6 | 489 | mgf1md = sigmd; |
adf7e6d1 | 490 | if (!ossl_x509_algor_md_to_mgf1(&pss->maskGenAlgorithm, mgf1md)) |
0f113f3e | 491 | goto err; |
adf7e6d1 | 492 | if (!ossl_x509_algor_new_from_md(&pss->maskHash, mgf1md)) |
74753357 | 493 | goto err; |
47e42b3c | 494 | return pss; |
0f113f3e | 495 | err: |
25aaa98a | 496 | RSA_PSS_PARAMS_free(pss); |
0f113f3e MC |
497 | return NULL; |
498 | } | |
499 | ||
9ab7fe48 | 500 | ASN1_STRING *ossl_rsa_ctx_to_pss_string(EVP_PKEY_CTX *pkctx) |
47e42b3c DSH |
501 | { |
502 | RSA_PSS_PARAMS *pss = rsa_ctx_to_pss(pkctx); | |
f291138b | 503 | ASN1_STRING *os; |
52ad523c | 504 | |
47e42b3c DSH |
505 | if (pss == NULL) |
506 | return NULL; | |
507 | ||
f291138b | 508 | os = ASN1_item_pack(pss, ASN1_ITEM_rptr(RSA_PSS_PARAMS), NULL); |
47e42b3c DSH |
509 | RSA_PSS_PARAMS_free(pss); |
510 | return os; | |
511 | } | |
512 | ||
0f113f3e MC |
513 | /* |
514 | * From PSS AlgorithmIdentifier set public key parameters. If pkey isn't NULL | |
0d4fb843 | 515 | * then the EVP_MD_CTX is setup and initialised. If it is NULL parameters are |
0f113f3e | 516 | * passed to pkctx instead. |
0574cadf | 517 | */ |
31904ecd | 518 | |
9ab7fe48 MC |
519 | int ossl_rsa_pss_to_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pkctx, |
520 | const X509_ALGOR *sigalg, EVP_PKEY *pkey) | |
0f113f3e MC |
521 | { |
522 | int rv = -1; | |
523 | int saltlen; | |
524 | const EVP_MD *mgf1md = NULL, *md = NULL; | |
525 | RSA_PSS_PARAMS *pss; | |
52ad523c | 526 | |
0f113f3e | 527 | /* Sanity check: make sure it is PSS */ |
ffc6fad5 | 528 | if (OBJ_obj2nid(sigalg->algorithm) != EVP_PKEY_RSA_PSS) { |
9311d0c4 | 529 | ERR_raise(ERR_LIB_RSA, RSA_R_UNSUPPORTED_SIGNATURE_TYPE); |
0f113f3e MC |
530 | return -1; |
531 | } | |
532 | /* Decode PSS parameters */ | |
cf333799 | 533 | pss = ossl_rsa_pss_decode(sigalg); |
0f113f3e | 534 | |
4158b0dc | 535 | if (!ossl_rsa_pss_get_param(pss, &md, &mgf1md, &saltlen)) { |
9311d0c4 | 536 | ERR_raise(ERR_LIB_RSA, RSA_R_INVALID_PSS_PARAMETERS); |
0f113f3e MC |
537 | goto err; |
538 | } | |
0f113f3e MC |
539 | |
540 | /* We have all parameters now set up context */ | |
0f113f3e MC |
541 | if (pkey) { |
542 | if (!EVP_DigestVerifyInit(ctx, &pkctx, md, NULL, pkey)) | |
543 | goto err; | |
544 | } else { | |
545 | const EVP_MD *checkmd; | |
546 | if (EVP_PKEY_CTX_get_signature_md(pkctx, &checkmd) <= 0) | |
547 | goto err; | |
ed576acd | 548 | if (EVP_MD_get_type(md) != EVP_MD_get_type(checkmd)) { |
9311d0c4 | 549 | ERR_raise(ERR_LIB_RSA, RSA_R_DIGEST_DOES_NOT_MATCH); |
0f113f3e MC |
550 | goto err; |
551 | } | |
552 | } | |
553 | ||
554 | if (EVP_PKEY_CTX_set_rsa_padding(pkctx, RSA_PKCS1_PSS_PADDING) <= 0) | |
555 | goto err; | |
556 | ||
557 | if (EVP_PKEY_CTX_set_rsa_pss_saltlen(pkctx, saltlen) <= 0) | |
558 | goto err; | |
559 | ||
560 | if (EVP_PKEY_CTX_set_rsa_mgf1_md(pkctx, mgf1md) <= 0) | |
561 | goto err; | |
562 | /* Carry on */ | |
563 | rv = 1; | |
564 | ||
565 | err: | |
566 | RSA_PSS_PARAMS_free(pss); | |
0f113f3e MC |
567 | return rv; |
568 | } | |
492a9e24 | 569 | |
a6495479 RL |
570 | static int rsa_pss_verify_param(const EVP_MD **pmd, const EVP_MD **pmgf1md, |
571 | int *psaltlen, int *ptrailerField) | |
572 | { | |
573 | if (psaltlen != NULL && *psaltlen < 0) { | |
574 | ERR_raise(ERR_LIB_RSA, RSA_R_INVALID_SALT_LENGTH); | |
575 | return 0; | |
576 | } | |
577 | /* | |
578 | * low-level routines support only trailer field 0xbc (value 1) and | |
579 | * PKCS#1 says we should reject any other value anyway. | |
580 | */ | |
581 | if (ptrailerField != NULL && *ptrailerField != 1) { | |
582 | ERR_raise(ERR_LIB_RSA, RSA_R_INVALID_TRAILER); | |
583 | return 0; | |
584 | } | |
585 | return 1; | |
586 | } | |
587 | ||
4158b0dc SL |
588 | int ossl_rsa_pss_get_param(const RSA_PSS_PARAMS *pss, const EVP_MD **pmd, |
589 | const EVP_MD **pmgf1md, int *psaltlen) | |
a6495479 | 590 | { |
cfd81c6d | 591 | /* |
a6495479 RL |
592 | * Callers do not care about the trailer field, and yet, we must |
593 | * pass it from get_param to verify_param, since the latter checks | |
594 | * its value. | |
595 | * | |
596 | * When callers start caring, it's a simple thing to add another | |
597 | * argument to this function. | |
cfd81c6d | 598 | */ |
a6495479 | 599 | int trailerField = 0; |
cfd81c6d | 600 | |
cf333799 RL |
601 | return ossl_rsa_pss_get_param_unverified(pss, pmd, pmgf1md, psaltlen, |
602 | &trailerField) | |
a6495479 RL |
603 | && rsa_pss_verify_param(pmd, pmgf1md, psaltlen, &trailerField); |
604 | } | |
605 | ||
0f113f3e MC |
606 | /* |
607 | * Customised RSA item verification routine. This is called when a signature | |
608 | * is encountered requiring special handling. We currently only handle PSS. | |
0574cadf DSH |
609 | */ |
610 | ||
ded346fa DDO |
611 | static int rsa_item_verify(EVP_MD_CTX *ctx, const ASN1_ITEM *it, |
612 | const void *asn, const X509_ALGOR *sigalg, | |
613 | const ASN1_BIT_STRING *sig, EVP_PKEY *pkey) | |
0f113f3e MC |
614 | { |
615 | /* Sanity check: make sure it is PSS */ | |
ffc6fad5 | 616 | if (OBJ_obj2nid(sigalg->algorithm) != EVP_PKEY_RSA_PSS) { |
9311d0c4 | 617 | ERR_raise(ERR_LIB_RSA, RSA_R_UNSUPPORTED_SIGNATURE_TYPE); |
0f113f3e MC |
618 | return -1; |
619 | } | |
9ab7fe48 | 620 | if (ossl_rsa_pss_to_ctx(ctx, NULL, sigalg, pkey) > 0) { |
0f113f3e MC |
621 | /* Carry on */ |
622 | return 2; | |
09f06923 | 623 | } |
0f113f3e MC |
624 | return -1; |
625 | } | |
0574cadf | 626 | |
ded346fa | 627 | static int rsa_item_sign(EVP_MD_CTX *ctx, const ASN1_ITEM *it, const void *asn, |
0f113f3e MC |
628 | X509_ALGOR *alg1, X509_ALGOR *alg2, |
629 | ASN1_BIT_STRING *sig) | |
630 | { | |
631 | int pad_mode; | |
ed576acd | 632 | EVP_PKEY_CTX *pkctx = EVP_MD_CTX_get_pkey_ctx(ctx); |
52ad523c | 633 | |
0f113f3e MC |
634 | if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0) |
635 | return 0; | |
636 | if (pad_mode == RSA_PKCS1_PADDING) | |
637 | return 2; | |
638 | if (pad_mode == RSA_PKCS1_PSS_PADDING) { | |
639 | ASN1_STRING *os1 = NULL; | |
9ab7fe48 | 640 | os1 = ossl_rsa_ctx_to_pss_string(pkctx); |
0f113f3e MC |
641 | if (!os1) |
642 | return 0; | |
643 | /* Duplicate parameters if we have to */ | |
644 | if (alg2) { | |
645 | ASN1_STRING *os2 = ASN1_STRING_dup(os1); | |
646 | if (!os2) { | |
647 | ASN1_STRING_free(os1); | |
648 | return 0; | |
649 | } | |
ffc6fad5 | 650 | X509_ALGOR_set0(alg2, OBJ_nid2obj(EVP_PKEY_RSA_PSS), |
0f113f3e MC |
651 | V_ASN1_SEQUENCE, os2); |
652 | } | |
ffc6fad5 | 653 | X509_ALGOR_set0(alg1, OBJ_nid2obj(EVP_PKEY_RSA_PSS), |
0f113f3e MC |
654 | V_ASN1_SEQUENCE, os1); |
655 | return 3; | |
656 | } | |
657 | return 2; | |
658 | } | |
17c63d1c | 659 | |
629e369c DSH |
660 | static int rsa_sig_info_set(X509_SIG_INFO *siginf, const X509_ALGOR *sigalg, |
661 | const ASN1_STRING *sig) | |
662 | { | |
663 | int rv = 0; | |
664 | int mdnid, saltlen; | |
665 | uint32_t flags; | |
666 | const EVP_MD *mgf1md = NULL, *md = NULL; | |
667 | RSA_PSS_PARAMS *pss; | |
b744f915 | 668 | int secbits; |
629e369c DSH |
669 | |
670 | /* Sanity check: make sure it is PSS */ | |
671 | if (OBJ_obj2nid(sigalg->algorithm) != EVP_PKEY_RSA_PSS) | |
672 | return 0; | |
673 | /* Decode PSS parameters */ | |
cf333799 | 674 | pss = ossl_rsa_pss_decode(sigalg); |
4158b0dc | 675 | if (!ossl_rsa_pss_get_param(pss, &md, &mgf1md, &saltlen)) |
629e369c | 676 | goto err; |
ed576acd | 677 | mdnid = EVP_MD_get_type(md); |
629e369c DSH |
678 | /* |
679 | * For TLS need SHA256, SHA384 or SHA512, digest and MGF1 digest must | |
680 | * match and salt length must equal digest size | |
681 | */ | |
682 | if ((mdnid == NID_sha256 || mdnid == NID_sha384 || mdnid == NID_sha512) | |
ed576acd TM |
683 | && mdnid == EVP_MD_get_type(mgf1md) |
684 | && saltlen == EVP_MD_get_size(md)) | |
629e369c DSH |
685 | flags = X509_SIG_INFO_TLS; |
686 | else | |
687 | flags = 0; | |
688 | /* Note: security bits half number of digest bits */ | |
ed576acd | 689 | secbits = EVP_MD_get_size(md) * 4; |
b744f915 KR |
690 | /* |
691 | * SHA1 and MD5 are known to be broken. Reduce security bits so that | |
692 | * they're no longer accepted at security level 1. The real values don't | |
693 | * really matter as long as they're lower than 80, which is our security | |
694 | * level 1. | |
695 | * https://eprint.iacr.org/2020/014 puts a chosen-prefix attack for SHA1 at | |
696 | * 2^63.4 | |
697 | * https://documents.epfl.ch/users/l/le/lenstra/public/papers/lat.pdf | |
698 | * puts a chosen-prefix attack for MD5 at 2^39. | |
699 | */ | |
700 | if (mdnid == NID_sha1) | |
701 | secbits = 64; | |
702 | else if (mdnid == NID_md5_sha1) | |
703 | secbits = 68; | |
704 | else if (mdnid == NID_md5) | |
705 | secbits = 39; | |
706 | X509_SIG_INFO_set(siginf, mdnid, EVP_PKEY_RSA_PSS, secbits, | |
629e369c DSH |
707 | flags); |
708 | rv = 1; | |
709 | err: | |
710 | RSA_PSS_PARAMS_free(pss); | |
711 | return rv; | |
712 | } | |
713 | ||
2aee35d3 PY |
714 | static int rsa_pkey_check(const EVP_PKEY *pkey) |
715 | { | |
716 | return RSA_check_key_ex(pkey->pkey.rsa, NULL); | |
717 | } | |
718 | ||
29be6023 RL |
719 | static size_t rsa_pkey_dirty_cnt(const EVP_PKEY *pkey) |
720 | { | |
721 | return pkey->pkey.rsa->dirty_cnt; | |
722 | } | |
723 | ||
967cc3f9 | 724 | /* |
0fc39c90 SL |
725 | * There is no need to do RSA_test_flags(rsa, RSA_FLAG_TYPE_RSASSAPSS) |
726 | * checks in this method since the caller tests EVP_KEYMGMT_is_a() first. | |
967cc3f9 RL |
727 | */ |
728 | static int rsa_int_export_to(const EVP_PKEY *from, int rsa_type, | |
bed7437b RL |
729 | void *to_keydata, |
730 | OSSL_FUNC_keymgmt_import_fn *importer, | |
b4250010 | 731 | OSSL_LIB_CTX *libctx, const char *propq) |
29be6023 | 732 | { |
b305452f | 733 | RSA *rsa = from->pkey.rsa; |
6d4e6009 | 734 | OSSL_PARAM_BLD *tmpl = OSSL_PARAM_BLD_new(); |
29be6023 | 735 | OSSL_PARAM *params = NULL; |
0996cff9 | 736 | int selection = 0; |
b305452f | 737 | int rv = 0; |
29be6023 | 738 | |
6d4e6009 P |
739 | if (tmpl == NULL) |
740 | return 0; | |
b305452f | 741 | /* Public parameters must always be present */ |
645a541a | 742 | if (RSA_get0_n(rsa) == NULL || RSA_get0_e(rsa) == NULL) |
29be6023 RL |
743 | goto err; |
744 | ||
23b2fc0b | 745 | if (!ossl_rsa_todata(rsa, tmpl, NULL)) |
29be6023 | 746 | goto err; |
b305452f | 747 | |
645a541a RL |
748 | selection |= OSSL_KEYMGMT_SELECT_PUBLIC_KEY; |
749 | if (RSA_get0_d(rsa) != NULL) | |
0996cff9 | 750 | selection |= OSSL_KEYMGMT_SELECT_PRIVATE_KEY; |
29be6023 | 751 | |
967cc3f9 RL |
752 | if (rsa->pss != NULL) { |
753 | const EVP_MD *md = NULL, *mgf1md = NULL; | |
6ce6ad39 | 754 | int md_nid, mgf1md_nid, saltlen, trailerfield; |
967cc3f9 RL |
755 | RSA_PSS_PARAMS_30 pss_params; |
756 | ||
cf333799 RL |
757 | if (!ossl_rsa_pss_get_param_unverified(rsa->pss, &md, &mgf1md, |
758 | &saltlen, &trailerfield)) | |
967cc3f9 | 759 | goto err; |
ed576acd TM |
760 | md_nid = EVP_MD_get_type(md); |
761 | mgf1md_nid = EVP_MD_get_type(mgf1md); | |
23b2fc0b P |
762 | if (!ossl_rsa_pss_params_30_set_defaults(&pss_params) |
763 | || !ossl_rsa_pss_params_30_set_hashalg(&pss_params, md_nid) | |
764 | || !ossl_rsa_pss_params_30_set_maskgenhashalg(&pss_params, | |
765 | mgf1md_nid) | |
766 | || !ossl_rsa_pss_params_30_set_saltlen(&pss_params, saltlen) | |
767 | || !ossl_rsa_pss_params_30_todata(&pss_params, tmpl, NULL)) | |
967cc3f9 RL |
768 | goto err; |
769 | selection |= OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS; | |
29be6023 RL |
770 | } |
771 | ||
6d4e6009 | 772 | if ((params = OSSL_PARAM_BLD_to_param(tmpl)) == NULL) |
29be6023 RL |
773 | goto err; |
774 | ||
775 | /* We export, the provider imports */ | |
bed7437b | 776 | rv = importer(to_keydata, selection, params); |
29be6023 RL |
777 | |
778 | err: | |
3f883c7c | 779 | OSSL_PARAM_free(params); |
6d4e6009 | 780 | OSSL_PARAM_BLD_free(tmpl); |
b305452f | 781 | return rv; |
29be6023 RL |
782 | } |
783 | ||
967cc3f9 RL |
784 | static int rsa_int_import_from(const OSSL_PARAM params[], void *vpctx, |
785 | int rsa_type) | |
0abae163 | 786 | { |
629c72db MC |
787 | EVP_PKEY_CTX *pctx = vpctx; |
788 | EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(pctx); | |
23b2fc0b | 789 | RSA *rsa = ossl_rsa_new_with_ctx(pctx->libctx); |
967cc3f9 | 790 | RSA_PSS_PARAMS_30 rsa_pss_params = { 0, }; |
bbde8566 | 791 | int pss_defaults_set = 0; |
967cc3f9 | 792 | int ok = 0; |
0abae163 RL |
793 | |
794 | if (rsa == NULL) { | |
795 | ERR_raise(ERR_LIB_DH, ERR_R_MALLOC_FAILURE); | |
796 | return 0; | |
797 | } | |
798 | ||
967cc3f9 RL |
799 | RSA_clear_flags(rsa, RSA_FLAG_TYPE_MASK); |
800 | RSA_set_flags(rsa, rsa_type); | |
801 | ||
bbde8566 TM |
802 | if (!ossl_rsa_pss_params_30_fromdata(&rsa_pss_params, &pss_defaults_set, |
803 | params, pctx->libctx)) | |
967cc3f9 RL |
804 | goto err; |
805 | ||
806 | switch (rsa_type) { | |
807 | case RSA_FLAG_TYPE_RSA: | |
808 | /* | |
809 | * Were PSS parameters filled in? | |
810 | * In that case, something's wrong | |
811 | */ | |
23b2fc0b | 812 | if (!ossl_rsa_pss_params_30_is_unrestricted(&rsa_pss_params)) |
967cc3f9 RL |
813 | goto err; |
814 | break; | |
815 | case RSA_FLAG_TYPE_RSASSAPSS: | |
816 | /* | |
817 | * Were PSS parameters filled in? In that case, create the old | |
818 | * RSA_PSS_PARAMS structure. Otherwise, this is an unrestricted key. | |
819 | */ | |
23b2fc0b | 820 | if (!ossl_rsa_pss_params_30_is_unrestricted(&rsa_pss_params)) { |
967cc3f9 | 821 | /* Create the older RSA_PSS_PARAMS from RSA_PSS_PARAMS_30 data */ |
23b2fc0b P |
822 | int mdnid = ossl_rsa_pss_params_30_hashalg(&rsa_pss_params); |
823 | int mgf1mdnid = ossl_rsa_pss_params_30_maskgenhashalg(&rsa_pss_params); | |
824 | int saltlen = ossl_rsa_pss_params_30_saltlen(&rsa_pss_params); | |
967cc3f9 RL |
825 | const EVP_MD *md = EVP_get_digestbynid(mdnid); |
826 | const EVP_MD *mgf1md = EVP_get_digestbynid(mgf1mdnid); | |
827 | ||
4158b0dc SL |
828 | if ((rsa->pss = ossl_rsa_pss_params_create(md, mgf1md, |
829 | saltlen)) == NULL) | |
967cc3f9 RL |
830 | goto err; |
831 | } | |
832 | break; | |
833 | default: | |
834 | /* RSA key sub-types we don't know how to handle yet */ | |
835 | goto err; | |
0abae163 | 836 | } |
967cc3f9 | 837 | |
23b2fc0b | 838 | if (!ossl_rsa_fromdata(rsa, params)) |
967cc3f9 RL |
839 | goto err; |
840 | ||
841 | switch (rsa_type) { | |
842 | case RSA_FLAG_TYPE_RSA: | |
843 | ok = EVP_PKEY_assign_RSA(pkey, rsa); | |
844 | break; | |
845 | case RSA_FLAG_TYPE_RSASSAPSS: | |
846 | ok = EVP_PKEY_assign(pkey, EVP_PKEY_RSA_PSS, rsa); | |
847 | break; | |
848 | } | |
849 | ||
850 | err: | |
851 | if (!ok) | |
852 | RSA_free(rsa); | |
853 | return ok; | |
854 | } | |
855 | ||
856 | static int rsa_pkey_export_to(const EVP_PKEY *from, void *to_keydata, | |
bed7437b RL |
857 | OSSL_FUNC_keymgmt_import_fn *importer, |
858 | OSSL_LIB_CTX *libctx, const char *propq) | |
967cc3f9 RL |
859 | { |
860 | return rsa_int_export_to(from, RSA_FLAG_TYPE_RSA, to_keydata, | |
bed7437b | 861 | importer, libctx, propq); |
967cc3f9 RL |
862 | } |
863 | ||
864 | static int rsa_pss_pkey_export_to(const EVP_PKEY *from, void *to_keydata, | |
bed7437b RL |
865 | OSSL_FUNC_keymgmt_import_fn *importer, |
866 | OSSL_LIB_CTX *libctx, const char *propq) | |
967cc3f9 RL |
867 | { |
868 | return rsa_int_export_to(from, RSA_FLAG_TYPE_RSASSAPSS, to_keydata, | |
bed7437b | 869 | importer, libctx, propq); |
967cc3f9 RL |
870 | } |
871 | ||
872 | static int rsa_pkey_import_from(const OSSL_PARAM params[], void *vpctx) | |
873 | { | |
874 | return rsa_int_import_from(params, vpctx, RSA_FLAG_TYPE_RSA); | |
875 | } | |
876 | ||
877 | static int rsa_pss_pkey_import_from(const OSSL_PARAM params[], void *vpctx) | |
878 | { | |
879 | return rsa_int_import_from(params, vpctx, RSA_FLAG_TYPE_RSASSAPSS); | |
0abae163 RL |
880 | } |
881 | ||
2145ba5e TM |
882 | static int rsa_pkey_copy(EVP_PKEY *to, EVP_PKEY *from) |
883 | { | |
884 | RSA *rsa = from->pkey.rsa; | |
885 | RSA *dupkey = NULL; | |
886 | int ret; | |
887 | ||
888 | if (rsa != NULL) { | |
b4f447c0 | 889 | dupkey = ossl_rsa_dup(rsa, OSSL_KEYMGMT_SELECT_ALL); |
2145ba5e TM |
890 | if (dupkey == NULL) |
891 | return 0; | |
892 | } | |
893 | ||
894 | ret = EVP_PKEY_assign(to, from->type, dupkey); | |
895 | if (!ret) | |
896 | RSA_free(dupkey); | |
897 | return ret; | |
898 | } | |
899 | ||
adf7e6d1 | 900 | const EVP_PKEY_ASN1_METHOD ossl_rsa_asn1_meths[2] = { |
0f113f3e MC |
901 | { |
902 | EVP_PKEY_RSA, | |
903 | EVP_PKEY_RSA, | |
904 | ASN1_PKEY_SIGPARAM_NULL, | |
905 | ||
906 | "RSA", | |
907 | "OpenSSL RSA method", | |
908 | ||
909 | rsa_pub_decode, | |
910 | rsa_pub_encode, | |
911 | rsa_pub_cmp, | |
912 | rsa_pub_print, | |
913 | ||
914 | rsa_priv_decode, | |
915 | rsa_priv_encode, | |
916 | rsa_priv_print, | |
917 | ||
918 | int_rsa_size, | |
919 | rsa_bits, | |
920 | rsa_security_bits, | |
921 | ||
922 | 0, 0, 0, 0, 0, 0, | |
923 | ||
924 | rsa_sig_print, | |
925 | int_rsa_free, | |
926 | rsa_pkey_ctrl, | |
927 | old_rsa_priv_decode, | |
928 | old_rsa_priv_encode, | |
929 | rsa_item_verify, | |
629e369c | 930 | rsa_item_sign, |
2aee35d3 | 931 | rsa_sig_info_set, |
29be6023 RL |
932 | rsa_pkey_check, |
933 | ||
934 | 0, 0, | |
935 | 0, 0, 0, 0, | |
936 | ||
937 | rsa_pkey_dirty_cnt, | |
0abae163 | 938 | rsa_pkey_export_to, |
2145ba5e TM |
939 | rsa_pkey_import_from, |
940 | rsa_pkey_copy | |
629e369c | 941 | }, |
0f113f3e MC |
942 | |
943 | { | |
944 | EVP_PKEY_RSA2, | |
945 | EVP_PKEY_RSA, | |
946 | ASN1_PKEY_ALIAS} | |
947 | }; | |
4e8ba747 | 948 | |
adf7e6d1 | 949 | const EVP_PKEY_ASN1_METHOD ossl_rsa_pss_asn1_meth = { |
4e8ba747 DSH |
950 | EVP_PKEY_RSA_PSS, |
951 | EVP_PKEY_RSA_PSS, | |
952 | ASN1_PKEY_SIGPARAM_NULL, | |
953 | ||
954 | "RSA-PSS", | |
955 | "OpenSSL RSA-PSS method", | |
956 | ||
957 | rsa_pub_decode, | |
958 | rsa_pub_encode, | |
959 | rsa_pub_cmp, | |
960 | rsa_pub_print, | |
961 | ||
962 | rsa_priv_decode, | |
963 | rsa_priv_encode, | |
964 | rsa_priv_print, | |
965 | ||
966 | int_rsa_size, | |
967 | rsa_bits, | |
968 | rsa_security_bits, | |
969 | ||
970 | 0, 0, 0, 0, 0, 0, | |
971 | ||
972 | rsa_sig_print, | |
973 | int_rsa_free, | |
974 | rsa_pkey_ctrl, | |
975 | 0, 0, | |
976 | rsa_item_verify, | |
977 | rsa_item_sign, | |
03f5c893 | 978 | rsa_sig_info_set, |
29be6023 RL |
979 | rsa_pkey_check, |
980 | ||
981 | 0, 0, | |
982 | 0, 0, 0, 0, | |
983 | ||
984 | rsa_pkey_dirty_cnt, | |
967cc3f9 | 985 | rsa_pss_pkey_export_to, |
2145ba5e TM |
986 | rsa_pss_pkey_import_from, |
987 | rsa_pkey_copy | |
4e8ba747 | 988 | }; |