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Avoid creating invalid rsa pss params
[thirdparty/openssl.git] / crypto / rsa / rsa_ameth.c
CommitLineData
0f113f3e 1/*
b0edda11 2 * Copyright 2006-2018 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
10#include <stdio.h>
b39fc560 11#include "internal/cryptlib.h"
448be743
DSH		 12#include <openssl/asn1t.h>
13#include <openssl/x509.h>
1e26a8ba 14#include <openssl/bn.h>
3c27208f 15#include <openssl/cms.h>
5fe736e5 16#include "internal/asn1_int.h"
3aeb9348 17#include "internal/evp_int.h"
9862e9aa 18#include "rsa_locl.h"
448be743 19
e968561d 20#ifndef OPENSSL_NO_CMS
0574cadf
DSH		 21static int rsa_cms_sign(CMS_SignerInfo *si);
22static int rsa_cms_verify(CMS_SignerInfo *si);
23static int rsa_cms_decrypt(CMS_RecipientInfo *ri);
24static int rsa_cms_encrypt(CMS_RecipientInfo *ri);
e968561d 25#endif
0574cadf 26
b35b8d11
DSH		 27static RSA_PSS_PARAMS *rsa_pss_decode(const X509_ALGOR *alg);
28
42009ae8
DSH		 29/* Set any parameters associated with pkey */
30static int rsa_param_encode(const EVP_PKEY *pkey,
31 ASN1_STRING **pstr, int *pstrtype)
32{
33 const RSA *rsa = pkey->pkey.rsa;
52ad523c 34
42009ae8
DSH		 35 *pstr = NULL;
36 /* If RSA it's just NULL type */
1f483a69 37 if (pkey->ameth->pkey_id != EVP_PKEY_RSA_PSS) {
42009ae8
DSH		 38 *pstrtype = V_ASN1_NULL;
39 return 1;
40 }
41 /* If no PSS parameters we omit parameters entirely */
42 if (rsa->pss == NULL) {
43 *pstrtype = V_ASN1_UNDEF;
44 return 1;
45 }
46 /* Encode PSS parameters */
f291138b 47 if (ASN1_item_pack(rsa->pss, ASN1_ITEM_rptr(RSA_PSS_PARAMS), pstr) == NULL)
42009ae8 48 return 0;
42009ae8
DSH		 49
50 *pstrtype = V_ASN1_SEQUENCE;
51 return 1;
52}
53/* Decode any parameters and set them in RSA structure */
54static int rsa_param_decode(RSA *rsa, const X509_ALGOR *alg)
55{
56 const ASN1_OBJECT *algoid;
57 const void *algp;
58 int algptype;
59
60 X509_ALGOR_get0(&algoid, &algptype, &algp, alg);
1f483a69 61 if (OBJ_obj2nid(algoid) != EVP_PKEY_RSA_PSS)
42009ae8
DSH		 62 return 1;
63 if (algptype == V_ASN1_UNDEF)
64 return 1;
635fe50f
DSH		 65 if (algptype != V_ASN1_SEQUENCE) {
66 RSAerr(RSA_F_RSA_PARAM_DECODE, RSA_R_INVALID_PSS_PARAMETERS);
42009ae8 67 return 0;
635fe50f 68 }
b35b8d11 69 rsa->pss = rsa_pss_decode(alg);
42009ae8
DSH		 70 if (rsa->pss == NULL)
71 return 0;
72 return 1;
73}
74
6f81892e 75static int rsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
0f113f3e
MC		 76{
77 unsigned char *penc = NULL;
78 int penclen;
42009ae8
DSH		 79 ASN1_STRING *str;
80 int strtype;
52ad523c 81
42009ae8
DSH		 82 if (!rsa_param_encode(pkey, &str, &strtype))
83 return 0;
0f113f3e
MC		 84 penclen = i2d_RSAPublicKey(pkey->pkey.rsa, &penc);
85 if (penclen <= 0)
86 return 0;
42009ae8
DSH		 87 if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(pkey->ameth->pkey_id),
88 strtype, str, penc, penclen))
0f113f3e
MC		 89 return 1;
90
91 OPENSSL_free(penc);
92 return 0;
93}
448be743
DSH		 94
95static int rsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
0f113f3e
MC		 96{
97 const unsigned char *p;
98 int pklen;
42009ae8 99 X509_ALGOR *alg;
0f113f3e 100 RSA *rsa = NULL;
75ebbd9a 101
42009ae8 102 if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &alg, pubkey))
0f113f3e 103 return 0;
75ebbd9a 104 if ((rsa = d2i_RSAPublicKey(NULL, &p, pklen)) == NULL) {
0f113f3e
MC		 105 RSAerr(RSA_F_RSA_PUB_DECODE, ERR_R_RSA_LIB);
106 return 0;
107 }
42009ae8
DSH		 108 if (!rsa_param_decode(rsa, alg)) {
109 RSA_free(rsa);
110 return 0;
111 }
1f483a69
BE		 112 if (!EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, rsa)) {
113 RSA_free(rsa);
114 return 0;
115 }
0f113f3e
MC		 116 return 1;
117}
448be743 118
6f81892e 119static int rsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
0f113f3e
MC		 120{
121 if (BN_cmp(b->pkey.rsa->n, a->pkey.rsa->n) != 0
122 || BN_cmp(b->pkey.rsa->e, a->pkey.rsa->e) != 0)
123 return 0;
124 return 1;
125}
6f81892e 126
e4263314 127static int old_rsa_priv_decode(EVP_PKEY *pkey,
0f113f3e
MC		 128 const unsigned char **pder, int derlen)
129{
130 RSA *rsa;
75ebbd9a
RS		 131
132 if ((rsa = d2i_RSAPrivateKey(NULL, pder, derlen)) == NULL) {
0f113f3e
MC		 133 RSAerr(RSA_F_OLD_RSA_PRIV_DECODE, ERR_R_RSA_LIB);
134 return 0;
135 }
faa02fe2 136 EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, rsa);
0f113f3e
MC		 137 return 1;
138}
448be743 139
e4263314 140static int old_rsa_priv_encode(const EVP_PKEY *pkey, unsigned char **pder)
0f113f3e
MC		 141{
142 return i2d_RSAPrivateKey(pkey->pkey.rsa, pder);
143}
e4263314 144
6f81892e 145static int rsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
0f113f3e
MC		 146{
147 unsigned char *rk = NULL;
148 int rklen;
42009ae8
DSH		 149 ASN1_STRING *str;
150 int strtype;
52ad523c 151
42009ae8
DSH		 152 if (!rsa_param_encode(pkey, &str, &strtype))
153 return 0;
0f113f3e
MC		 154 rklen = i2d_RSAPrivateKey(pkey->pkey.rsa, &rk);
155
156 if (rklen <= 0) {
157 RSAerr(RSA_F_RSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
285c7d9c 158 ASN1_STRING_free(str);
0f113f3e
MC		 159 return 0;
160 }
161
faa02fe2 162 if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(pkey->ameth->pkey_id), 0,
42009ae8 163 strtype, str, rk, rklen)) {
0f113f3e 164 RSAerr(RSA_F_RSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
285c7d9c 165 ASN1_STRING_free(str);
0f113f3e
MC		 166 return 0;
167 }
168
169 return 1;
170}
448be743 171
245c6bc3 172static int rsa_priv_decode(EVP_PKEY *pkey, const PKCS8_PRIV_KEY_INFO *p8)
0f113f3e
MC		 173{
174 const unsigned char *p;
42009ae8 175 RSA *rsa;
0f113f3e 176 int pklen;
42009ae8
DSH		 177 const X509_ALGOR *alg;
178
179 if (!PKCS8_pkey_get0(NULL, &p, &pklen, &alg, p8))
180 return 0;
181 rsa = d2i_RSAPrivateKey(NULL, &p, pklen);
182 if (rsa == NULL) {
183 RSAerr(RSA_F_RSA_PRIV_DECODE, ERR_R_RSA_LIB);
184 return 0;
185 }
186 if (!rsa_param_decode(rsa, alg)) {
187 RSA_free(rsa);
0f113f3e 188 return 0;
42009ae8
DSH		 189 }
190 EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, rsa);
191 return 1;
0f113f3e 192}
e4263314 193
6f81892e 194static int int_rsa_size(const EVP_PKEY *pkey)
0f113f3e
MC		 195{
196 return RSA_size(pkey->pkey.rsa);
197}
6f81892e
DSH		 198
199static int rsa_bits(const EVP_PKEY *pkey)
0f113f3e
MC		 200{
201 return BN_num_bits(pkey->pkey.rsa->n);
202}
6f81892e 203
2514fa79 204static int rsa_security_bits(const EVP_PKEY *pkey)
0f113f3e
MC		 205{
206 return RSA_security_bits(pkey->pkey.rsa);
207}
2514fa79 208
6f81892e 209static void int_rsa_free(EVP_PKEY *pkey)
0f113f3e
MC		 210{
211 RSA_free(pkey->pkey.rsa);
212}
35208f36 213
9503ed8b
DSH		 214static X509_ALGOR *rsa_mgf1_decode(X509_ALGOR *alg)
215{
216 if (OBJ_obj2nid(alg->algorithm) != NID_mgf1)
217 return NULL;
218 return ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(X509_ALGOR),
219 alg->parameter);
220}
221
222static int rsa_pss_param_print(BIO *bp, int pss_key, RSA_PSS_PARAMS *pss,
223 int indent)
224{
225 int rv = 0;
226 X509_ALGOR *maskHash = NULL;
52ad523c 227
9503ed8b
DSH		 228 if (!BIO_indent(bp, indent, 128))
229 goto err;
230 if (pss_key) {
231 if (pss == NULL) {
232 if (BIO_puts(bp, "No PSS parameter restrictions\n") <= 0)
233 return 0;
234 return 1;
235 } else {
236 if (BIO_puts(bp, "PSS parameter restrictions:") <= 0)
237 return 0;
238 }
239 } else if (pss == NULL) {
240 if (BIO_puts(bp,"(INVALID PSS PARAMETERS)\n") <= 0)
241 return 0;
242 return 1;
243 }
244 if (BIO_puts(bp, "\n") <= 0)
245 goto err;
246 if (pss_key)
247 indent += 2;
248 if (!BIO_indent(bp, indent, 128))
249 goto err;
250 if (BIO_puts(bp, "Hash Algorithm: ") <= 0)
251 goto err;
252
253 if (pss->hashAlgorithm) {
254 if (i2a_ASN1_OBJECT(bp, pss->hashAlgorithm->algorithm) <= 0)
255 goto err;
90862ab4 256 } else if (BIO_puts(bp, "sha1 (default)") <= 0) {
9503ed8b 257 goto err;
90862ab4 258 }
9503ed8b
DSH		 259
260 if (BIO_puts(bp, "\n") <= 0)
261 goto err;
262
263 if (!BIO_indent(bp, indent, 128))
264 goto err;
265
266 if (BIO_puts(bp, "Mask Algorithm: ") <= 0)
267 goto err;
268 if (pss->maskGenAlgorithm) {
269 if (i2a_ASN1_OBJECT(bp, pss->maskGenAlgorithm->algorithm) <= 0)
270 goto err;
271 if (BIO_puts(bp, " with ") <= 0)
272 goto err;
273 maskHash = rsa_mgf1_decode(pss->maskGenAlgorithm);
274 if (maskHash != NULL) {
275 if (i2a_ASN1_OBJECT(bp, maskHash->algorithm) <= 0)
276 goto err;
90862ab4 277 } else if (BIO_puts(bp, "INVALID") <= 0) {
9503ed8b 278 goto err;
90862ab4
PY		 279 }
280 } else if (BIO_puts(bp, "mgf1 with sha1 (default)") <= 0) {
9503ed8b 281 goto err;
90862ab4 282 }
9503ed8b
DSH		 283 BIO_puts(bp, "\n");
284
285 if (!BIO_indent(bp, indent, 128))
286 goto err;
287 if (BIO_printf(bp, "%s Salt Length: 0x", pss_key ? "Minimum" : "") <= 0)
288 goto err;
289 if (pss->saltLength) {
290 if (i2a_ASN1_INTEGER(bp, pss->saltLength) <= 0)
291 goto err;
90862ab4 292 } else if (BIO_puts(bp, "14 (default)") <= 0) {
9503ed8b 293 goto err;
90862ab4 294 }
9503ed8b
DSH		 295 BIO_puts(bp, "\n");
296
297 if (!BIO_indent(bp, indent, 128))
298 goto err;
299 if (BIO_puts(bp, "Trailer Field: 0x") <= 0)
300 goto err;
301 if (pss->trailerField) {
302 if (i2a_ASN1_INTEGER(bp, pss->trailerField) <= 0)
303 goto err;
90862ab4 304 } else if (BIO_puts(bp, "BC (default)") <= 0) {
9503ed8b 305 goto err;
90862ab4 306 }
9503ed8b
DSH		 307 BIO_puts(bp, "\n");
308
309 rv = 1;
310
311 err:
312 X509_ALGOR_free(maskHash);
313 return rv;
314
315}
316
317static int pkey_rsa_print(BIO *bp, const EVP_PKEY *pkey, int off, int priv)
0f113f3e 318{
9503ed8b 319 const RSA *x = pkey->pkey.rsa;
0f113f3e
MC		 320 char *str;
321 const char *s;
665d899f 322 int ret = 0, mod_len = 0, ex_primes;
0f113f3e
MC		 323
324 if (x->n != NULL)
325 mod_len = BN_num_bits(x->n);
665d899f 326 ex_primes = sk_RSA_PRIME_INFO_num(x->prime_infos);
0f113f3e
MC		 327
328 if (!BIO_indent(bp, off, 128))
329 goto err;
330
87ee7b22 331 if (BIO_printf(bp, "%s ", pkey_is_pss(pkey) ? "RSA-PSS" : "RSA") <= 0)
9503ed8b
DSH		 332 goto err;
333
0f113f3e 334 if (priv && x->d) {
665d899f
PY		 335 if (BIO_printf(bp, "Private-Key: (%d bit, %d primes)\n",
336 mod_len, ex_primes <= 0 ? 2 : ex_primes + 2) <= 0)
0f113f3e
MC		 337 goto err;
338 str = "modulus:";
339 s = "publicExponent:";
340 } else {
a773b52a 341 if (BIO_printf(bp, "Public-Key: (%d bit)\n", mod_len) <= 0)
0f113f3e
MC		 342 goto err;
343 str = "Modulus:";
344 s = "Exponent:";
345 }
a773b52a 346 if (!ASN1_bn_print(bp, str, x->n, NULL, off))
0f113f3e 347 goto err;
a773b52a 348 if (!ASN1_bn_print(bp, s, x->e, NULL, off))
0f113f3e
MC		 349 goto err;
350 if (priv) {
665d899f
PY		 351 int i;
352
a773b52a 353 if (!ASN1_bn_print(bp, "privateExponent:", x->d, NULL, off))
0f113f3e 354 goto err;
a773b52a 355 if (!ASN1_bn_print(bp, "prime1:", x->p, NULL, off))
0f113f3e 356 goto err;
a773b52a 357 if (!ASN1_bn_print(bp, "prime2:", x->q, NULL, off))
0f113f3e 358 goto err;
a773b52a 359 if (!ASN1_bn_print(bp, "exponent1:", x->dmp1, NULL, off))
0f113f3e 360 goto err;
a773b52a 361 if (!ASN1_bn_print(bp, "exponent2:", x->dmq1, NULL, off))
0f113f3e 362 goto err;
a773b52a 363 if (!ASN1_bn_print(bp, "coefficient:", x->iqmp, NULL, off))
0f113f3e 364 goto err;
665d899f
PY		 365 for (i = 0; i < sk_RSA_PRIME_INFO_num(x->prime_infos); i++) {
366 /* print multi-prime info */
367 BIGNUM *bn = NULL;
368 RSA_PRIME_INFO *pinfo;
369 int j;
370
371 pinfo = sk_RSA_PRIME_INFO_value(x->prime_infos, i);
372 for (j = 0; j < 3; j++) {
373 if (!BIO_indent(bp, off, 128))
374 goto err;
375 switch (j) {
376 case 0:
377 if (BIO_printf(bp, "prime%d:", i + 3) <= 0)
378 goto err;
379 bn = pinfo->r;
380 break;
381 case 1:
382 if (BIO_printf(bp, "exponent%d:", i + 3) <= 0)
383 goto err;
384 bn = pinfo->d;
385 break;
386 case 2:
387 if (BIO_printf(bp, "coefficient%d:", i + 3) <= 0)
388 goto err;
389 bn = pinfo->t;
390 break;
391 default:
392 break;
393 }
394 if (!ASN1_bn_print(bp, "", bn, NULL, off))
395 goto err;
396 }
397 }
0f113f3e 398 }
87ee7b22 399 if (pkey_is_pss(pkey) && !rsa_pss_param_print(bp, 1, x->pss, off))
9503ed8b 400 goto err;
0f113f3e
MC		 401 ret = 1;
402 err:
9503ed8b 403 return ret;
0f113f3e 404}
35208f36
DSH		 405
406static int rsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent,
0f113f3e
MC		 407 ASN1_PCTX *ctx)
408{
9503ed8b 409 return pkey_rsa_print(bp, pkey, indent, 0);
0f113f3e 410}
35208f36
DSH		 411
412static int rsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent,
0f113f3e
MC		 413 ASN1_PCTX *ctx)
414{
9503ed8b 415 return pkey_rsa_print(bp, pkey, indent, 1);
0f113f3e 416}
0574cadf 417
6745a1ff 418static RSA_PSS_PARAMS *rsa_pss_decode(const X509_ALGOR *alg)
0f113f3e 419{
0f113f3e
MC		 420 RSA_PSS_PARAMS *pss;
421
e93c8748
DSH		 422 pss = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(RSA_PSS_PARAMS),
423 alg->parameter);
0f113f3e 424
6745a1ff 425 if (pss == NULL)
0f113f3e
MC		 426 return NULL;
427
6745a1ff
DSH		 428 if (pss->maskGenAlgorithm != NULL) {
429 pss->maskHash = rsa_mgf1_decode(pss->maskGenAlgorithm);
430 if (pss->maskHash == NULL) {
431 RSA_PSS_PARAMS_free(pss);
432 return NULL;
433 }
434 }
0f113f3e
MC		 435
436 return pss;
437}
438
ff04bbe3 439static int rsa_sig_print(BIO *bp, const X509_ALGOR *sigalg,
0f113f3e
MC		 440 const ASN1_STRING *sig, int indent, ASN1_PCTX *pctx)
441{
ffc6fad5 442 if (OBJ_obj2nid(sigalg->algorithm) == EVP_PKEY_RSA_PSS) {
0f113f3e 443 int rv;
52ad523c 444 RSA_PSS_PARAMS *pss = rsa_pss_decode(sigalg);
c82bafc5 445
9503ed8b 446 rv = rsa_pss_param_print(bp, 0, pss, indent);
25aaa98a 447 RSA_PSS_PARAMS_free(pss);
0f113f3e
MC		 448 if (!rv)
449 return 0;
a4c467c9 450 } else if (BIO_puts(bp, "\n") <= 0) {
0f113f3e 451 return 0;
52ad523c 452 }
0f113f3e
MC		 453 if (sig)
454 return X509_signature_dump(bp, sig, indent);
455 return 1;
456}
492a9e24
DSH		 457
458static int rsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
0f113f3e
MC		 459{
460 X509_ALGOR *alg = NULL;
52ad523c 461
0f113f3e
MC		 462 switch (op) {
463
464 case ASN1_PKEY_CTRL_PKCS7_SIGN:
465 if (arg1 == 0)
466 PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, NULL, &alg);
467 break;
468
469 case ASN1_PKEY_CTRL_PKCS7_ENCRYPT:
53d2260c
DSH		 470 if (pkey_is_pss(pkey))
471 return -2;
0f113f3e
MC		 472 if (arg1 == 0)
473 PKCS7_RECIP_INFO_get0_alg(arg2, &alg);
474 break;
8931b30d 475#ifndef OPENSSL_NO_CMS
0f113f3e
MC		 476 case ASN1_PKEY_CTRL_CMS_SIGN:
477 if (arg1 == 0)
478 return rsa_cms_sign(arg2);
479 else if (arg1 == 1)
480 return rsa_cms_verify(arg2);
481 break;
482
483 case ASN1_PKEY_CTRL_CMS_ENVELOPE:
53d2260c
DSH		 484 if (pkey_is_pss(pkey))
485 return -2;
0f113f3e
MC		 486 if (arg1 == 0)
487 return rsa_cms_encrypt(arg2);
488 else if (arg1 == 1)
489 return rsa_cms_decrypt(arg2);
490 break;
491
492 case ASN1_PKEY_CTRL_CMS_RI_TYPE:
53d2260c
DSH		 493 if (pkey_is_pss(pkey))
494 return -2;
0f113f3e
MC		 495 *(int *)arg2 = CMS_RECIPINFO_TRANS;
496 return 1;
8931b30d 497#endif
a78568b7 498
0f113f3e
MC		 499 case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
500 *(int *)arg2 = NID_sha256;
501 return 1;
03919683 502
0f113f3e
MC		 503 default:
504 return -2;
492a9e24 505
0f113f3e 506 }
492a9e24 507
0f113f3e
MC		 508 if (alg)
509 X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), V_ASN1_NULL, 0);
4f1aa191 510
0f113f3e 511 return 1;
4f1aa191 512
0f113f3e 513}
492a9e24 514
0574cadf
DSH		 515/* allocate and set algorithm ID from EVP_MD, default SHA1 */
516static int rsa_md_to_algor(X509_ALGOR **palg, const EVP_MD *md)
0f113f3e 517{
47e42b3c 518 if (md == NULL || EVP_MD_type(md) == NID_sha1)
0f113f3e
MC		 519 return 1;
520 *palg = X509_ALGOR_new();
90945fa3 521 if (*palg == NULL)
0f113f3e
MC		 522 return 0;
523 X509_ALGOR_set_md(*palg, md);
524 return 1;
525}
0574cadf
DSH		 526
527/* Allocate and set MGF1 algorithm ID from EVP_MD */
528static int rsa_md_to_mgf1(X509_ALGOR **palg, const EVP_MD *mgf1md)
0f113f3e
MC		 529{
530 X509_ALGOR *algtmp = NULL;
531 ASN1_STRING *stmp = NULL;
52ad523c 532
0f113f3e 533 *palg = NULL;
47e42b3c 534 if (mgf1md == NULL || EVP_MD_type(mgf1md) == NID_sha1)
0f113f3e
MC		 535 return 1;
536 /* need to embed algorithm ID inside another */
537 if (!rsa_md_to_algor(&algtmp, mgf1md))
538 goto err;
f291138b 539 if (ASN1_item_pack(algtmp, ASN1_ITEM_rptr(X509_ALGOR), &stmp) == NULL)
0f113f3e
MC		 540 goto err;
541 *palg = X509_ALGOR_new();
90945fa3 542 if (*palg == NULL)
0f113f3e
MC		 543 goto err;
544 X509_ALGOR_set0(*palg, OBJ_nid2obj(NID_mgf1), V_ASN1_SEQUENCE, stmp);
545 stmp = NULL;
546 err:
0dfb9398 547 ASN1_STRING_free(stmp);
222561fe 548 X509_ALGOR_free(algtmp);
0f113f3e
MC		 549 if (*palg)
550 return 1;
551 return 0;
552}
0574cadf
DSH		 553
554/* convert algorithm ID to EVP_MD, default SHA1 */
555static const EVP_MD *rsa_algor_to_md(X509_ALGOR *alg)
0f113f3e
MC		 556{
557 const EVP_MD *md;
52ad523c 558
0f113f3e
MC		 559 if (!alg)
560 return EVP_sha1();
561 md = EVP_get_digestbyobj(alg->algorithm);
562 if (md == NULL)
563 RSAerr(RSA_F_RSA_ALGOR_TO_MD, RSA_R_UNKNOWN_DIGEST);
564 return md;
565}
566
0f113f3e 567/*
47e42b3c 568 * Convert EVP_PKEY_CTX in PSS mode into corresponding algorithm parameter,
0574cadf 569 * suitable for setting an AlgorithmIdentifier.
31904ecd
DSH		 570 */
571
47e42b3c 572static RSA_PSS_PARAMS *rsa_ctx_to_pss(EVP_PKEY_CTX *pkctx)
0f113f3e
MC		 573{
574 const EVP_MD *sigmd, *mgf1md;
0f113f3e 575 EVP_PKEY *pk = EVP_PKEY_CTX_get0_pkey(pkctx);
47e42b3c 576 int saltlen;
52ad523c 577
0f113f3e 578 if (EVP_PKEY_CTX_get_signature_md(pkctx, &sigmd) <= 0)
47e42b3c 579 return NULL;
0f113f3e 580 if (EVP_PKEY_CTX_get_rsa_mgf1_md(pkctx, &mgf1md) <= 0)
47e42b3c 581 return NULL;
0f113f3e 582 if (!EVP_PKEY_CTX_get_rsa_pss_saltlen(pkctx, &saltlen))
47e42b3c 583 return NULL;
90862ab4 584 if (saltlen == -1) {
0f113f3e 585 saltlen = EVP_MD_size(sigmd);
491360e7 586 } else if (saltlen == -2 || saltlen == -3) {
0f113f3e 587 saltlen = EVP_PKEY_size(pk) - EVP_MD_size(sigmd) - 2;
137096a7 588 if ((EVP_PKEY_bits(pk) & 0x7) == 1)
0f113f3e 589 saltlen--;
491360e7
BE		 590 if (saltlen < 0)
591 return NULL;
0f113f3e 592 }
47e42b3c
DSH		 593
594 return rsa_pss_params_create(sigmd, mgf1md, saltlen);
595}
596
597RSA_PSS_PARAMS *rsa_pss_params_create(const EVP_MD *sigmd,
598 const EVP_MD *mgf1md, int saltlen)
599{
600 RSA_PSS_PARAMS *pss = RSA_PSS_PARAMS_new();
52ad523c 601
90945fa3 602 if (pss == NULL)
0f113f3e
MC		 603 goto err;
604 if (saltlen != 20) {
605 pss->saltLength = ASN1_INTEGER_new();
90945fa3 606 if (pss->saltLength == NULL)
0f113f3e
MC		 607 goto err;
608 if (!ASN1_INTEGER_set(pss->saltLength, saltlen))
609 goto err;
610 }
611 if (!rsa_md_to_algor(&pss->hashAlgorithm, sigmd))
612 goto err;
47e42b3c 613 if (mgf1md == NULL)
b6b885c6 614 mgf1md = sigmd;
0f113f3e
MC		 615 if (!rsa_md_to_mgf1(&pss->maskGenAlgorithm, mgf1md))
616 goto err;
74753357
DSH		 617 if (!rsa_md_to_algor(&pss->maskHash, mgf1md))
618 goto err;
47e42b3c 619 return pss;
0f113f3e 620 err:
25aaa98a 621 RSA_PSS_PARAMS_free(pss);
0f113f3e
MC		 622 return NULL;
623}
624
47e42b3c
DSH		 625static ASN1_STRING *rsa_ctx_to_pss_string(EVP_PKEY_CTX *pkctx)
626{
627 RSA_PSS_PARAMS *pss = rsa_ctx_to_pss(pkctx);
f291138b 628 ASN1_STRING *os;
52ad523c 629
47e42b3c
DSH		 630 if (pss == NULL)
631 return NULL;
632
f291138b 633 os = ASN1_item_pack(pss, ASN1_ITEM_rptr(RSA_PSS_PARAMS), NULL);
47e42b3c
DSH		 634 RSA_PSS_PARAMS_free(pss);
635 return os;
636}
637
0f113f3e
MC		 638/*
639 * From PSS AlgorithmIdentifier set public key parameters. If pkey isn't NULL
0d4fb843 640 * then the EVP_MD_CTX is setup and initialised. If it is NULL parameters are
0f113f3e 641 * passed to pkctx instead.
0574cadf 642 */
31904ecd 643
0574cadf 644static int rsa_pss_to_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pkctx,
0f113f3e
MC		 645 X509_ALGOR *sigalg, EVP_PKEY *pkey)
646{
647 int rv = -1;
648 int saltlen;
649 const EVP_MD *mgf1md = NULL, *md = NULL;
650 RSA_PSS_PARAMS *pss;
52ad523c 651
0f113f3e 652 /* Sanity check: make sure it is PSS */
ffc6fad5 653 if (OBJ_obj2nid(sigalg->algorithm) != EVP_PKEY_RSA_PSS) {
0f113f3e
MC		 654 RSAerr(RSA_F_RSA_PSS_TO_CTX, RSA_R_UNSUPPORTED_SIGNATURE_TYPE);
655 return -1;
656 }
657 /* Decode PSS parameters */
6745a1ff 658 pss = rsa_pss_decode(sigalg);
0f113f3e 659
cfd81c6d 660 if (!rsa_pss_get_param(pss, &md, &mgf1md, &saltlen)) {
0f113f3e
MC		 661 RSAerr(RSA_F_RSA_PSS_TO_CTX, RSA_R_INVALID_PSS_PARAMETERS);
662 goto err;
663 }
0f113f3e
MC		 664
665 /* We have all parameters now set up context */
0f113f3e
MC		 666 if (pkey) {
667 if (!EVP_DigestVerifyInit(ctx, &pkctx, md, NULL, pkey))
668 goto err;
669 } else {
670 const EVP_MD *checkmd;
671 if (EVP_PKEY_CTX_get_signature_md(pkctx, &checkmd) <= 0)
672 goto err;
673 if (EVP_MD_type(md) != EVP_MD_type(checkmd)) {
674 RSAerr(RSA_F_RSA_PSS_TO_CTX, RSA_R_DIGEST_DOES_NOT_MATCH);
675 goto err;
676 }
677 }
678
679 if (EVP_PKEY_CTX_set_rsa_padding(pkctx, RSA_PKCS1_PSS_PADDING) <= 0)
680 goto err;
681
682 if (EVP_PKEY_CTX_set_rsa_pss_saltlen(pkctx, saltlen) <= 0)
683 goto err;
684
685 if (EVP_PKEY_CTX_set_rsa_mgf1_md(pkctx, mgf1md) <= 0)
686 goto err;
687 /* Carry on */
688 rv = 1;
689
690 err:
691 RSA_PSS_PARAMS_free(pss);
0f113f3e
MC		 692 return rv;
693}
492a9e24 694
cfd81c6d
DSH		 695int rsa_pss_get_param(const RSA_PSS_PARAMS *pss, const EVP_MD **pmd,
696 const EVP_MD **pmgf1md, int *psaltlen)
697{
698 if (pss == NULL)
699 return 0;
700 *pmd = rsa_algor_to_md(pss->hashAlgorithm);
701 if (*pmd == NULL)
702 return 0;
703 *pmgf1md = rsa_algor_to_md(pss->maskHash);
704 if (*pmgf1md == NULL)
705 return 0;
706 if (pss->saltLength) {
707 *psaltlen = ASN1_INTEGER_get(pss->saltLength);
708 if (*psaltlen < 0) {
709 RSAerr(RSA_F_RSA_PSS_GET_PARAM, RSA_R_INVALID_SALT_LENGTH);
710 return 0;
711 }
c82bafc5 712 } else {
cfd81c6d 713 *psaltlen = 20;
c82bafc5 714 }
cfd81c6d
DSH		 715
716 /*
717 * low-level routines support only trailer field 0xbc (value 1) and
718 * PKCS#1 says we should reject any other value anyway.
719 */
720 if (pss->trailerField && ASN1_INTEGER_get(pss->trailerField) != 1) {
721 RSAerr(RSA_F_RSA_PSS_GET_PARAM, RSA_R_INVALID_TRAILER);
b6b885c6 722 return 0;
cfd81c6d
DSH		 723 }
724
725 return 1;
726}
727
e968561d 728#ifndef OPENSSL_NO_CMS
0574cadf 729static int rsa_cms_verify(CMS_SignerInfo *si)
0f113f3e
MC		 730{
731 int nid, nid2;
732 X509_ALGOR *alg;
733 EVP_PKEY_CTX *pkctx = CMS_SignerInfo_get0_pkey_ctx(si);
52ad523c 734
0f113f3e
MC		 735 CMS_SignerInfo_get0_algs(si, NULL, NULL, NULL, &alg);
736 nid = OBJ_obj2nid(alg->algorithm);
ffc6fad5 737 if (nid == EVP_PKEY_RSA_PSS)
0f113f3e 738 return rsa_pss_to_ctx(NULL, pkctx, alg, NULL);
08be0331
DSH		 739 /* Only PSS allowed for PSS keys */
740 if (pkey_ctx_is_pss(pkctx)) {
741 RSAerr(RSA_F_RSA_CMS_VERIFY, RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE);
742 return 0;
743 }
744 if (nid == NID_rsaEncryption)
745 return 1;
0f113f3e
MC		 746 /* Workaround for some implementation that use a signature OID */
747 if (OBJ_find_sigid_algs(nid, NULL, &nid2)) {
748 if (nid2 == NID_rsaEncryption)
749 return 1;
750 }
751 return 0;
752}
e968561d 753#endif
0f113f3e
MC		 754
755/*
756 * Customised RSA item verification routine. This is called when a signature
757 * is encountered requiring special handling. We currently only handle PSS.
0574cadf
DSH		 758 */
759
0574cadf 760static int rsa_item_verify(EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn,
0f113f3e
MC		 761 X509_ALGOR *sigalg, ASN1_BIT_STRING *sig,
762 EVP_PKEY *pkey)
763{
764 /* Sanity check: make sure it is PSS */
ffc6fad5 765 if (OBJ_obj2nid(sigalg->algorithm) != EVP_PKEY_RSA_PSS) {
0f113f3e
MC		 766 RSAerr(RSA_F_RSA_ITEM_VERIFY, RSA_R_UNSUPPORTED_SIGNATURE_TYPE);
767 return -1;
768 }
09f06923 769 if (rsa_pss_to_ctx(ctx, NULL, sigalg, pkey) > 0) {
0f113f3e
MC		 770 /* Carry on */
771 return 2;
09f06923 772 }
0f113f3e
MC		 773 return -1;
774}
0574cadf 775
e968561d 776#ifndef OPENSSL_NO_CMS
0574cadf 777static int rsa_cms_sign(CMS_SignerInfo *si)
0f113f3e
MC		 778{
779 int pad_mode = RSA_PKCS1_PADDING;
780 X509_ALGOR *alg;
781 EVP_PKEY_CTX *pkctx = CMS_SignerInfo_get0_pkey_ctx(si);
782 ASN1_STRING *os = NULL;
52ad523c 783
0f113f3e
MC		 784 CMS_SignerInfo_get0_algs(si, NULL, NULL, NULL, &alg);
785 if (pkctx) {
786 if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0)
787 return 0;
788 }
789 if (pad_mode == RSA_PKCS1_PADDING) {
790 X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), V_ASN1_NULL, 0);
791 return 1;
792 }
793 /* We don't support it */
794 if (pad_mode != RSA_PKCS1_PSS_PADDING)
795 return 0;
47e42b3c 796 os = rsa_ctx_to_pss_string(pkctx);
0f113f3e
MC		 797 if (!os)
798 return 0;
ffc6fad5 799 X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_PKEY_RSA_PSS), V_ASN1_SEQUENCE, os);
0f113f3e
MC		 800 return 1;
801}
e968561d 802#endif
0574cadf 803
17c63d1c 804static int rsa_item_sign(EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn,
0f113f3e
MC		 805 X509_ALGOR *alg1, X509_ALGOR *alg2,
806 ASN1_BIT_STRING *sig)
807{
808 int pad_mode;
6e59a892 809 EVP_PKEY_CTX *pkctx = EVP_MD_CTX_pkey_ctx(ctx);
52ad523c 810
0f113f3e
MC		 811 if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0)
812 return 0;
813 if (pad_mode == RSA_PKCS1_PADDING)
814 return 2;
815 if (pad_mode == RSA_PKCS1_PSS_PADDING) {
816 ASN1_STRING *os1 = NULL;
47e42b3c 817 os1 = rsa_ctx_to_pss_string(pkctx);
0f113f3e
MC		 818 if (!os1)
819 return 0;
820 /* Duplicate parameters if we have to */
821 if (alg2) {
822 ASN1_STRING *os2 = ASN1_STRING_dup(os1);
823 if (!os2) {
824 ASN1_STRING_free(os1);
825 return 0;
826 }
ffc6fad5 827 X509_ALGOR_set0(alg2, OBJ_nid2obj(EVP_PKEY_RSA_PSS),
0f113f3e
MC		 828 V_ASN1_SEQUENCE, os2);
829 }
ffc6fad5 830 X509_ALGOR_set0(alg1, OBJ_nid2obj(EVP_PKEY_RSA_PSS),
0f113f3e
MC		 831 V_ASN1_SEQUENCE, os1);
832 return 3;
833 }
834 return 2;
835}
17c63d1c 836
629e369c
DSH		 837static int rsa_sig_info_set(X509_SIG_INFO *siginf, const X509_ALGOR *sigalg,
838 const ASN1_STRING *sig)
839{
840 int rv = 0;
841 int mdnid, saltlen;
842 uint32_t flags;
843 const EVP_MD *mgf1md = NULL, *md = NULL;
844 RSA_PSS_PARAMS *pss;
845
846 /* Sanity check: make sure it is PSS */
847 if (OBJ_obj2nid(sigalg->algorithm) != EVP_PKEY_RSA_PSS)
848 return 0;
849 /* Decode PSS parameters */
850 pss = rsa_pss_decode(sigalg);
851 if (!rsa_pss_get_param(pss, &md, &mgf1md, &saltlen))
852 goto err;
853 mdnid = EVP_MD_type(md);
854 /*
855 * For TLS need SHA256, SHA384 or SHA512, digest and MGF1 digest must
856 * match and salt length must equal digest size
857 */
858 if ((mdnid == NID_sha256 || mdnid == NID_sha384 || mdnid == NID_sha512)
859 && mdnid == EVP_MD_type(mgf1md) && saltlen == EVP_MD_size(md))
860 flags = X509_SIG_INFO_TLS;
861 else
862 flags = 0;
863 /* Note: security bits half number of digest bits */
864 X509_SIG_INFO_set(siginf, mdnid, EVP_PKEY_RSA_PSS, EVP_MD_size(md) * 4,
865 flags);
866 rv = 1;
867 err:
868 RSA_PSS_PARAMS_free(pss);
869 return rv;
870}
871
e968561d 872#ifndef OPENSSL_NO_CMS
6745a1ff 873static RSA_OAEP_PARAMS *rsa_oaep_decode(const X509_ALGOR *alg)
0f113f3e 874{
6745a1ff 875 RSA_OAEP_PARAMS *oaep;
0574cadf 876
6745a1ff 877 oaep = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(RSA_OAEP_PARAMS),
52ad523c 878 alg->parameter);
0574cadf 879
6745a1ff 880 if (oaep == NULL)
0f113f3e 881 return NULL;
0574cadf 882
6745a1ff
DSH		 883 if (oaep->maskGenFunc != NULL) {
884 oaep->maskHash = rsa_mgf1_decode(oaep->maskGenFunc);
885 if (oaep->maskHash == NULL) {
886 RSA_OAEP_PARAMS_free(oaep);
887 return NULL;
888 }
889 }
890 return oaep;
0f113f3e 891}
0574cadf
DSH		 892
893static int rsa_cms_decrypt(CMS_RecipientInfo *ri)
0f113f3e
MC		 894{
895 EVP_PKEY_CTX *pkctx;
896 X509_ALGOR *cmsalg;
897 int nid;
898 int rv = -1;
899 unsigned char *label = NULL;
900 int labellen = 0;
901 const EVP_MD *mgf1md = NULL, *md = NULL;
902 RSA_OAEP_PARAMS *oaep;
52ad523c 903
0f113f3e 904 pkctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
52ad523c 905 if (pkctx == NULL)
0f113f3e
MC		 906 return 0;
907 if (!CMS_RecipientInfo_ktri_get0_algs(ri, NULL, NULL, &cmsalg))
908 return -1;
909 nid = OBJ_obj2nid(cmsalg->algorithm);
910 if (nid == NID_rsaEncryption)
911 return 1;
912 if (nid != NID_rsaesOaep) {
913 RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_UNSUPPORTED_ENCRYPTION_TYPE);
914 return -1;
915 }
916 /* Decode OAEP parameters */
6745a1ff 917 oaep = rsa_oaep_decode(cmsalg);
0f113f3e
MC		 918
919 if (oaep == NULL) {
920 RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_INVALID_OAEP_PARAMETERS);
921 goto err;
922 }
923
6745a1ff 924 mgf1md = rsa_algor_to_md(oaep->maskHash);
52ad523c 925 if (mgf1md == NULL)
0f113f3e
MC		 926 goto err;
927 md = rsa_algor_to_md(oaep->hashFunc);
52ad523c 928 if (md == NULL)
0f113f3e
MC		 929 goto err;
930
52ad523c 931 if (oaep->pSourceFunc != NULL) {
0f113f3e 932 X509_ALGOR *plab = oaep->pSourceFunc;
52ad523c 933
0f113f3e
MC		 934 if (OBJ_obj2nid(plab->algorithm) != NID_pSpecified) {
935 RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_UNSUPPORTED_LABEL_SOURCE);
936 goto err;
937 }
938 if (plab->parameter->type != V_ASN1_OCTET_STRING) {
939 RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_INVALID_LABEL);
940 goto err;
941 }
942
943 label = plab->parameter->value.octet_string->data;
944 /* Stop label being freed when OAEP parameters are freed */
945 plab->parameter->value.octet_string->data = NULL;
946 labellen = plab->parameter->value.octet_string->length;
947 }
948
949 if (EVP_PKEY_CTX_set_rsa_padding(pkctx, RSA_PKCS1_OAEP_PADDING) <= 0)
950 goto err;
951 if (EVP_PKEY_CTX_set_rsa_oaep_md(pkctx, md) <= 0)
952 goto err;
953 if (EVP_PKEY_CTX_set_rsa_mgf1_md(pkctx, mgf1md) <= 0)
954 goto err;
955 if (EVP_PKEY_CTX_set0_rsa_oaep_label(pkctx, label, labellen) <= 0)
956 goto err;
957 /* Carry on */
958 rv = 1;
959
960 err:
961 RSA_OAEP_PARAMS_free(oaep);
0f113f3e
MC		 962 return rv;
963}
0574cadf
DSH		 964
965static int rsa_cms_encrypt(CMS_RecipientInfo *ri)
0f113f3e
MC		 966{
967 const EVP_MD *md, *mgf1md;
968 RSA_OAEP_PARAMS *oaep = NULL;
969 ASN1_STRING *os = NULL;
970 X509_ALGOR *alg;
971 EVP_PKEY_CTX *pkctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
972 int pad_mode = RSA_PKCS1_PADDING, rv = 0, labellen;
973 unsigned char *label;
52ad523c 974
178989b4
BS		 975 if (CMS_RecipientInfo_ktri_get0_algs(ri, NULL, NULL, &alg) <= 0)
976 return 0;
0f113f3e
MC		 977 if (pkctx) {
978 if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0)
979 return 0;
980 }
981 if (pad_mode == RSA_PKCS1_PADDING) {
982 X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), V_ASN1_NULL, 0);
983 return 1;
984 }
985 /* Not supported */
986 if (pad_mode != RSA_PKCS1_OAEP_PADDING)
987 return 0;
988 if (EVP_PKEY_CTX_get_rsa_oaep_md(pkctx, &md) <= 0)
989 goto err;
990 if (EVP_PKEY_CTX_get_rsa_mgf1_md(pkctx, &mgf1md) <= 0)
991 goto err;
992 labellen = EVP_PKEY_CTX_get0_rsa_oaep_label(pkctx, &label);
993 if (labellen < 0)
994 goto err;
995 oaep = RSA_OAEP_PARAMS_new();
90945fa3 996 if (oaep == NULL)
0f113f3e
MC		 997 goto err;
998 if (!rsa_md_to_algor(&oaep->hashFunc, md))
999 goto err;
1000 if (!rsa_md_to_mgf1(&oaep->maskGenFunc, mgf1md))
1001 goto err;
1002 if (labellen > 0) {
5e8129f2 1003 ASN1_OCTET_STRING *los;
0f113f3e 1004 oaep->pSourceFunc = X509_ALGOR_new();
90945fa3 1005 if (oaep->pSourceFunc == NULL)
0f113f3e 1006 goto err;
5e8129f2 1007 los = ASN1_OCTET_STRING_new();
90945fa3 1008 if (los == NULL)
0f113f3e
MC		 1009 goto err;
1010 if (!ASN1_OCTET_STRING_set(los, label, labellen)) {
1011 ASN1_OCTET_STRING_free(los);
1012 goto err;
1013 }
1014 X509_ALGOR_set0(oaep->pSourceFunc, OBJ_nid2obj(NID_pSpecified),
1015 V_ASN1_OCTET_STRING, los);
1016 }
1017 /* create string with pss parameter encoding. */
1018 if (!ASN1_item_pack(oaep, ASN1_ITEM_rptr(RSA_OAEP_PARAMS), &os))
1019 goto err;
1020 X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaesOaep), V_ASN1_SEQUENCE, os);
1021 os = NULL;
1022 rv = 1;
1023 err:
25aaa98a 1024 RSA_OAEP_PARAMS_free(oaep);
0dfb9398 1025 ASN1_STRING_free(os);
0f113f3e
MC		 1026 return rv;
1027}
e968561d 1028#endif
0f113f3e 1029
2aee35d3
PY		 1030static int rsa_pkey_check(const EVP_PKEY *pkey)
1031{
1032 return RSA_check_key_ex(pkey->pkey.rsa, NULL);
1033}
1034
578b5514 1035const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[2] = {
0f113f3e
MC		 1036 {
1037 EVP_PKEY_RSA,
1038 EVP_PKEY_RSA,
1039 ASN1_PKEY_SIGPARAM_NULL,
1040
1041 "RSA",
1042 "OpenSSL RSA method",
1043
1044 rsa_pub_decode,
1045 rsa_pub_encode,
1046 rsa_pub_cmp,
1047 rsa_pub_print,
1048
1049 rsa_priv_decode,
1050 rsa_priv_encode,
1051 rsa_priv_print,
1052
1053 int_rsa_size,
1054 rsa_bits,
1055 rsa_security_bits,
1056
1057 0, 0, 0, 0, 0, 0,
1058
1059 rsa_sig_print,
1060 int_rsa_free,
1061 rsa_pkey_ctrl,
1062 old_rsa_priv_decode,
1063 old_rsa_priv_encode,
1064 rsa_item_verify,
629e369c 1065 rsa_item_sign,
2aee35d3
PY		 1066 rsa_sig_info_set,
1067 rsa_pkey_check
629e369c 1068 },
0f113f3e
MC		 1069
1070 {
1071 EVP_PKEY_RSA2,
1072 EVP_PKEY_RSA,
1073 ASN1_PKEY_ALIAS}
1074};
4e8ba747
DSH		 1075
1076const EVP_PKEY_ASN1_METHOD rsa_pss_asn1_meth = {
1077 EVP_PKEY_RSA_PSS,
1078 EVP_PKEY_RSA_PSS,
1079 ASN1_PKEY_SIGPARAM_NULL,
1080
1081 "RSA-PSS",
1082 "OpenSSL RSA-PSS method",
1083
1084 rsa_pub_decode,
1085 rsa_pub_encode,
1086 rsa_pub_cmp,
1087 rsa_pub_print,
1088
1089 rsa_priv_decode,
1090 rsa_priv_encode,
1091 rsa_priv_print,
1092
1093 int_rsa_size,
1094 rsa_bits,
1095 rsa_security_bits,
1096
1097 0, 0, 0, 0, 0, 0,
1098
1099 rsa_sig_print,
1100 int_rsa_free,
1101 rsa_pkey_ctrl,
1102 0, 0,
1103 rsa_item_verify,
1104 rsa_item_sign,
2aee35d3
PY		 1105 0,
1106 rsa_pkey_check
4e8ba747 1107};
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