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Commit | Line | Data |
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0f113f3e | 1 | /* |
2039c421 | 2 | * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved. |
448be743 | 3 | * |
2039c421 RS |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
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 |
21 | static int rsa_cms_sign(CMS_SignerInfo *si); |
22 | static int rsa_cms_verify(CMS_SignerInfo *si); | |
23 | static int rsa_cms_decrypt(CMS_RecipientInfo *ri); | |
24 | static int rsa_cms_encrypt(CMS_RecipientInfo *ri); | |
e968561d | 25 | #endif |
0574cadf | 26 | |
b35b8d11 DSH |
27 | static RSA_PSS_PARAMS *rsa_pss_decode(const X509_ALGOR *alg); |
28 | ||
42009ae8 DSH |
29 | /* Set any parameters associated with pkey */ |
30 | static 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 */ | |
37 | if (pkey->ameth->pkey_id == EVP_PKEY_RSA) { | |
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 */ | |
54 | static 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); | |
61 | if (OBJ_obj2nid(algoid) == EVP_PKEY_RSA) | |
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 | 75 | static 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 | |
95 | static 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 | } | |
faa02fe2 | 112 | EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, rsa); |
0f113f3e MC |
113 | return 1; |
114 | } | |
448be743 | 115 | |
6f81892e | 116 | static int rsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b) |
0f113f3e MC |
117 | { |
118 | if (BN_cmp(b->pkey.rsa->n, a->pkey.rsa->n) != 0 | |
119 | || BN_cmp(b->pkey.rsa->e, a->pkey.rsa->e) != 0) | |
120 | return 0; | |
121 | return 1; | |
122 | } | |
6f81892e | 123 | |
e4263314 | 124 | static int old_rsa_priv_decode(EVP_PKEY *pkey, |
0f113f3e MC |
125 | const unsigned char **pder, int derlen) |
126 | { | |
127 | RSA *rsa; | |
75ebbd9a RS |
128 | |
129 | if ((rsa = d2i_RSAPrivateKey(NULL, pder, derlen)) == NULL) { | |
0f113f3e MC |
130 | RSAerr(RSA_F_OLD_RSA_PRIV_DECODE, ERR_R_RSA_LIB); |
131 | return 0; | |
132 | } | |
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) { | |
154 | RSAerr(RSA_F_RSA_PRIV_ENCODE, 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)) { |
0f113f3e | 161 | RSAerr(RSA_F_RSA_PRIV_ENCODE, 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 MC |
170 | { |
171 | const unsigned char *p; | |
42009ae8 | 172 | RSA *rsa; |
0f113f3e | 173 | int pklen; |
42009ae8 DSH |
174 | const X509_ALGOR *alg; |
175 | ||
176 | if (!PKCS8_pkey_get0(NULL, &p, &pklen, &alg, p8)) | |
177 | return 0; | |
178 | rsa = d2i_RSAPrivateKey(NULL, &p, pklen); | |
179 | if (rsa == NULL) { | |
180 | RSAerr(RSA_F_RSA_PRIV_DECODE, ERR_R_RSA_LIB); | |
181 | return 0; | |
182 | } | |
183 | if (!rsa_param_decode(rsa, alg)) { | |
184 | RSA_free(rsa); | |
0f113f3e | 185 | return 0; |
42009ae8 DSH |
186 | } |
187 | EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, rsa); | |
188 | return 1; | |
0f113f3e | 189 | } |
e4263314 | 190 | |
6f81892e | 191 | static int int_rsa_size(const EVP_PKEY *pkey) |
0f113f3e MC |
192 | { |
193 | return RSA_size(pkey->pkey.rsa); | |
194 | } | |
6f81892e DSH |
195 | |
196 | static int rsa_bits(const EVP_PKEY *pkey) | |
0f113f3e MC |
197 | { |
198 | return BN_num_bits(pkey->pkey.rsa->n); | |
199 | } | |
6f81892e | 200 | |
2514fa79 | 201 | static int rsa_security_bits(const EVP_PKEY *pkey) |
0f113f3e MC |
202 | { |
203 | return RSA_security_bits(pkey->pkey.rsa); | |
204 | } | |
2514fa79 | 205 | |
6f81892e | 206 | static void int_rsa_free(EVP_PKEY *pkey) |
0f113f3e MC |
207 | { |
208 | RSA_free(pkey->pkey.rsa); | |
209 | } | |
35208f36 | 210 | |
9503ed8b DSH |
211 | static X509_ALGOR *rsa_mgf1_decode(X509_ALGOR *alg) |
212 | { | |
213 | if (OBJ_obj2nid(alg->algorithm) != NID_mgf1) | |
214 | return NULL; | |
215 | return ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(X509_ALGOR), | |
216 | alg->parameter); | |
217 | } | |
218 | ||
219 | static int rsa_pss_param_print(BIO *bp, int pss_key, RSA_PSS_PARAMS *pss, | |
220 | int indent) | |
221 | { | |
222 | int rv = 0; | |
223 | X509_ALGOR *maskHash = NULL; | |
52ad523c | 224 | |
9503ed8b DSH |
225 | if (!BIO_indent(bp, indent, 128)) |
226 | goto err; | |
227 | if (pss_key) { | |
228 | if (pss == NULL) { | |
229 | if (BIO_puts(bp, "No PSS parameter restrictions\n") <= 0) | |
230 | return 0; | |
231 | return 1; | |
232 | } else { | |
233 | if (BIO_puts(bp, "PSS parameter restrictions:") <= 0) | |
234 | return 0; | |
235 | } | |
236 | } else if (pss == NULL) { | |
237 | if (BIO_puts(bp,"(INVALID PSS PARAMETERS)\n") <= 0) | |
238 | return 0; | |
239 | return 1; | |
240 | } | |
241 | if (BIO_puts(bp, "\n") <= 0) | |
242 | goto err; | |
243 | if (pss_key) | |
244 | indent += 2; | |
245 | if (!BIO_indent(bp, indent, 128)) | |
246 | goto err; | |
247 | if (BIO_puts(bp, "Hash Algorithm: ") <= 0) | |
248 | goto err; | |
249 | ||
250 | if (pss->hashAlgorithm) { | |
251 | if (i2a_ASN1_OBJECT(bp, pss->hashAlgorithm->algorithm) <= 0) | |
252 | goto err; | |
253 | } else if (BIO_puts(bp, "sha1 (default)") <= 0) | |
254 | goto err; | |
255 | ||
256 | if (BIO_puts(bp, "\n") <= 0) | |
257 | goto err; | |
258 | ||
259 | if (!BIO_indent(bp, indent, 128)) | |
260 | goto err; | |
261 | ||
262 | if (BIO_puts(bp, "Mask Algorithm: ") <= 0) | |
263 | goto err; | |
264 | if (pss->maskGenAlgorithm) { | |
265 | if (i2a_ASN1_OBJECT(bp, pss->maskGenAlgorithm->algorithm) <= 0) | |
266 | goto err; | |
267 | if (BIO_puts(bp, " with ") <= 0) | |
268 | goto err; | |
269 | maskHash = rsa_mgf1_decode(pss->maskGenAlgorithm); | |
270 | if (maskHash != NULL) { | |
271 | if (i2a_ASN1_OBJECT(bp, maskHash->algorithm) <= 0) | |
272 | goto err; | |
273 | } else if (BIO_puts(bp, "INVALID") <= 0) | |
274 | goto err; | |
275 | } else if (BIO_puts(bp, "mgf1 with sha1 (default)") <= 0) | |
276 | goto err; | |
277 | BIO_puts(bp, "\n"); | |
278 | ||
279 | if (!BIO_indent(bp, indent, 128)) | |
280 | goto err; | |
281 | if (BIO_printf(bp, "%s Salt Length: 0x", pss_key ? "Minimum" : "") <= 0) | |
282 | goto err; | |
283 | if (pss->saltLength) { | |
284 | if (i2a_ASN1_INTEGER(bp, pss->saltLength) <= 0) | |
285 | goto err; | |
286 | } else if (BIO_puts(bp, "14 (default)") <= 0) | |
287 | goto err; | |
288 | BIO_puts(bp, "\n"); | |
289 | ||
290 | if (!BIO_indent(bp, indent, 128)) | |
291 | goto err; | |
292 | if (BIO_puts(bp, "Trailer Field: 0x") <= 0) | |
293 | goto err; | |
294 | if (pss->trailerField) { | |
295 | if (i2a_ASN1_INTEGER(bp, pss->trailerField) <= 0) | |
296 | goto err; | |
297 | } else if (BIO_puts(bp, "BC (default)") <= 0) | |
298 | goto err; | |
299 | BIO_puts(bp, "\n"); | |
300 | ||
301 | rv = 1; | |
302 | ||
303 | err: | |
304 | X509_ALGOR_free(maskHash); | |
305 | return rv; | |
306 | ||
307 | } | |
308 | ||
309 | static int pkey_rsa_print(BIO *bp, const EVP_PKEY *pkey, int off, int priv) | |
0f113f3e | 310 | { |
9503ed8b | 311 | const RSA *x = pkey->pkey.rsa; |
0f113f3e MC |
312 | char *str; |
313 | const char *s; | |
0f113f3e | 314 | int ret = 0, mod_len = 0; |
0f113f3e MC |
315 | |
316 | if (x->n != NULL) | |
317 | mod_len = BN_num_bits(x->n); | |
318 | ||
319 | if (!BIO_indent(bp, off, 128)) | |
320 | goto err; | |
321 | ||
87ee7b22 | 322 | if (BIO_printf(bp, "%s ", pkey_is_pss(pkey) ? "RSA-PSS" : "RSA") <= 0) |
9503ed8b DSH |
323 | goto err; |
324 | ||
0f113f3e | 325 | if (priv && x->d) { |
a773b52a | 326 | if (BIO_printf(bp, "Private-Key: (%d bit)\n", mod_len) <= 0) |
0f113f3e MC |
327 | goto err; |
328 | str = "modulus:"; | |
329 | s = "publicExponent:"; | |
330 | } else { | |
a773b52a | 331 | if (BIO_printf(bp, "Public-Key: (%d bit)\n", mod_len) <= 0) |
0f113f3e MC |
332 | goto err; |
333 | str = "Modulus:"; | |
334 | s = "Exponent:"; | |
335 | } | |
a773b52a | 336 | if (!ASN1_bn_print(bp, str, x->n, NULL, off)) |
0f113f3e | 337 | goto err; |
a773b52a | 338 | if (!ASN1_bn_print(bp, s, x->e, NULL, off)) |
0f113f3e MC |
339 | goto err; |
340 | if (priv) { | |
a773b52a | 341 | if (!ASN1_bn_print(bp, "privateExponent:", x->d, NULL, off)) |
0f113f3e | 342 | goto err; |
a773b52a | 343 | if (!ASN1_bn_print(bp, "prime1:", x->p, NULL, off)) |
0f113f3e | 344 | goto err; |
a773b52a | 345 | if (!ASN1_bn_print(bp, "prime2:", x->q, NULL, off)) |
0f113f3e | 346 | goto err; |
a773b52a | 347 | if (!ASN1_bn_print(bp, "exponent1:", x->dmp1, NULL, off)) |
0f113f3e | 348 | goto err; |
a773b52a | 349 | if (!ASN1_bn_print(bp, "exponent2:", x->dmq1, NULL, off)) |
0f113f3e | 350 | goto err; |
a773b52a | 351 | if (!ASN1_bn_print(bp, "coefficient:", x->iqmp, NULL, off)) |
0f113f3e MC |
352 | goto err; |
353 | } | |
87ee7b22 | 354 | if (pkey_is_pss(pkey) && !rsa_pss_param_print(bp, 1, x->pss, off)) |
9503ed8b | 355 | goto err; |
0f113f3e MC |
356 | ret = 1; |
357 | err: | |
9503ed8b | 358 | return ret; |
0f113f3e | 359 | } |
35208f36 DSH |
360 | |
361 | static int rsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent, | |
0f113f3e MC |
362 | ASN1_PCTX *ctx) |
363 | { | |
9503ed8b | 364 | return pkey_rsa_print(bp, pkey, indent, 0); |
0f113f3e | 365 | } |
35208f36 DSH |
366 | |
367 | static int rsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent, | |
0f113f3e MC |
368 | ASN1_PCTX *ctx) |
369 | { | |
9503ed8b | 370 | return pkey_rsa_print(bp, pkey, indent, 1); |
0f113f3e | 371 | } |
0574cadf | 372 | |
6745a1ff | 373 | static RSA_PSS_PARAMS *rsa_pss_decode(const X509_ALGOR *alg) |
0f113f3e | 374 | { |
0f113f3e MC |
375 | RSA_PSS_PARAMS *pss; |
376 | ||
e93c8748 DSH |
377 | pss = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(RSA_PSS_PARAMS), |
378 | alg->parameter); | |
0f113f3e | 379 | |
6745a1ff | 380 | if (pss == NULL) |
0f113f3e MC |
381 | return NULL; |
382 | ||
6745a1ff DSH |
383 | if (pss->maskGenAlgorithm != NULL) { |
384 | pss->maskHash = rsa_mgf1_decode(pss->maskGenAlgorithm); | |
385 | if (pss->maskHash == NULL) { | |
386 | RSA_PSS_PARAMS_free(pss); | |
387 | return NULL; | |
388 | } | |
389 | } | |
0f113f3e MC |
390 | |
391 | return pss; | |
392 | } | |
393 | ||
ff04bbe3 | 394 | static int rsa_sig_print(BIO *bp, const X509_ALGOR *sigalg, |
0f113f3e MC |
395 | const ASN1_STRING *sig, int indent, ASN1_PCTX *pctx) |
396 | { | |
ffc6fad5 | 397 | if (OBJ_obj2nid(sigalg->algorithm) == EVP_PKEY_RSA_PSS) { |
0f113f3e | 398 | int rv; |
52ad523c | 399 | RSA_PSS_PARAMS *pss = rsa_pss_decode(sigalg); |
9503ed8b | 400 | rv = rsa_pss_param_print(bp, 0, pss, indent); |
25aaa98a | 401 | RSA_PSS_PARAMS_free(pss); |
0f113f3e MC |
402 | if (!rv) |
403 | return 0; | |
52ad523c | 404 | } else if (!sig && BIO_puts(bp, "\n") <= 0) { |
0f113f3e | 405 | return 0; |
52ad523c | 406 | } |
0f113f3e MC |
407 | if (sig) |
408 | return X509_signature_dump(bp, sig, indent); | |
409 | return 1; | |
410 | } | |
492a9e24 DSH |
411 | |
412 | static int rsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2) | |
0f113f3e MC |
413 | { |
414 | X509_ALGOR *alg = NULL; | |
52ad523c | 415 | |
0f113f3e MC |
416 | switch (op) { |
417 | ||
418 | case ASN1_PKEY_CTRL_PKCS7_SIGN: | |
419 | if (arg1 == 0) | |
420 | PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, NULL, &alg); | |
421 | break; | |
422 | ||
423 | case ASN1_PKEY_CTRL_PKCS7_ENCRYPT: | |
53d2260c DSH |
424 | if (pkey_is_pss(pkey)) |
425 | return -2; | |
0f113f3e MC |
426 | if (arg1 == 0) |
427 | PKCS7_RECIP_INFO_get0_alg(arg2, &alg); | |
428 | break; | |
8931b30d | 429 | #ifndef OPENSSL_NO_CMS |
0f113f3e MC |
430 | case ASN1_PKEY_CTRL_CMS_SIGN: |
431 | if (arg1 == 0) | |
432 | return rsa_cms_sign(arg2); | |
433 | else if (arg1 == 1) | |
434 | return rsa_cms_verify(arg2); | |
435 | break; | |
436 | ||
437 | case ASN1_PKEY_CTRL_CMS_ENVELOPE: | |
53d2260c DSH |
438 | if (pkey_is_pss(pkey)) |
439 | return -2; | |
0f113f3e MC |
440 | if (arg1 == 0) |
441 | return rsa_cms_encrypt(arg2); | |
442 | else if (arg1 == 1) | |
443 | return rsa_cms_decrypt(arg2); | |
444 | break; | |
445 | ||
446 | case ASN1_PKEY_CTRL_CMS_RI_TYPE: | |
53d2260c DSH |
447 | if (pkey_is_pss(pkey)) |
448 | return -2; | |
0f113f3e MC |
449 | *(int *)arg2 = CMS_RECIPINFO_TRANS; |
450 | return 1; | |
8931b30d | 451 | #endif |
a78568b7 | 452 | |
0f113f3e MC |
453 | case ASN1_PKEY_CTRL_DEFAULT_MD_NID: |
454 | *(int *)arg2 = NID_sha256; | |
455 | return 1; | |
03919683 | 456 | |
0f113f3e MC |
457 | default: |
458 | return -2; | |
492a9e24 | 459 | |
0f113f3e | 460 | } |
492a9e24 | 461 | |
0f113f3e MC |
462 | if (alg) |
463 | X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), V_ASN1_NULL, 0); | |
4f1aa191 | 464 | |
0f113f3e | 465 | return 1; |
4f1aa191 | 466 | |
0f113f3e | 467 | } |
492a9e24 | 468 | |
0574cadf DSH |
469 | /* allocate and set algorithm ID from EVP_MD, default SHA1 */ |
470 | static int rsa_md_to_algor(X509_ALGOR **palg, const EVP_MD *md) | |
0f113f3e | 471 | { |
47e42b3c | 472 | if (md == NULL || EVP_MD_type(md) == NID_sha1) |
0f113f3e MC |
473 | return 1; |
474 | *palg = X509_ALGOR_new(); | |
90945fa3 | 475 | if (*palg == NULL) |
0f113f3e MC |
476 | return 0; |
477 | X509_ALGOR_set_md(*palg, md); | |
478 | return 1; | |
479 | } | |
0574cadf DSH |
480 | |
481 | /* Allocate and set MGF1 algorithm ID from EVP_MD */ | |
482 | static int rsa_md_to_mgf1(X509_ALGOR **palg, const EVP_MD *mgf1md) | |
0f113f3e MC |
483 | { |
484 | X509_ALGOR *algtmp = NULL; | |
485 | ASN1_STRING *stmp = NULL; | |
52ad523c | 486 | |
0f113f3e | 487 | *palg = NULL; |
47e42b3c | 488 | if (mgf1md == NULL || EVP_MD_type(mgf1md) == NID_sha1) |
0f113f3e MC |
489 | return 1; |
490 | /* need to embed algorithm ID inside another */ | |
491 | if (!rsa_md_to_algor(&algtmp, mgf1md)) | |
492 | goto err; | |
f291138b | 493 | if (ASN1_item_pack(algtmp, ASN1_ITEM_rptr(X509_ALGOR), &stmp) == NULL) |
0f113f3e MC |
494 | goto err; |
495 | *palg = X509_ALGOR_new(); | |
90945fa3 | 496 | if (*palg == NULL) |
0f113f3e MC |
497 | goto err; |
498 | X509_ALGOR_set0(*palg, OBJ_nid2obj(NID_mgf1), V_ASN1_SEQUENCE, stmp); | |
499 | stmp = NULL; | |
500 | err: | |
0dfb9398 | 501 | ASN1_STRING_free(stmp); |
222561fe | 502 | X509_ALGOR_free(algtmp); |
0f113f3e MC |
503 | if (*palg) |
504 | return 1; | |
505 | return 0; | |
506 | } | |
0574cadf DSH |
507 | |
508 | /* convert algorithm ID to EVP_MD, default SHA1 */ | |
509 | static const EVP_MD *rsa_algor_to_md(X509_ALGOR *alg) | |
0f113f3e MC |
510 | { |
511 | const EVP_MD *md; | |
52ad523c | 512 | |
0f113f3e MC |
513 | if (!alg) |
514 | return EVP_sha1(); | |
515 | md = EVP_get_digestbyobj(alg->algorithm); | |
516 | if (md == NULL) | |
517 | RSAerr(RSA_F_RSA_ALGOR_TO_MD, RSA_R_UNKNOWN_DIGEST); | |
518 | return md; | |
519 | } | |
520 | ||
0f113f3e | 521 | /* |
47e42b3c | 522 | * Convert EVP_PKEY_CTX in PSS mode into corresponding algorithm parameter, |
0574cadf | 523 | * suitable for setting an AlgorithmIdentifier. |
31904ecd DSH |
524 | */ |
525 | ||
47e42b3c | 526 | static RSA_PSS_PARAMS *rsa_ctx_to_pss(EVP_PKEY_CTX *pkctx) |
0f113f3e MC |
527 | { |
528 | const EVP_MD *sigmd, *mgf1md; | |
0f113f3e | 529 | EVP_PKEY *pk = EVP_PKEY_CTX_get0_pkey(pkctx); |
47e42b3c | 530 | int saltlen; |
52ad523c | 531 | |
0f113f3e | 532 | if (EVP_PKEY_CTX_get_signature_md(pkctx, &sigmd) <= 0) |
47e42b3c | 533 | return NULL; |
0f113f3e | 534 | if (EVP_PKEY_CTX_get_rsa_mgf1_md(pkctx, &mgf1md) <= 0) |
47e42b3c | 535 | return NULL; |
0f113f3e | 536 | if (!EVP_PKEY_CTX_get_rsa_pss_saltlen(pkctx, &saltlen)) |
47e42b3c | 537 | return NULL; |
0f113f3e MC |
538 | if (saltlen == -1) |
539 | saltlen = EVP_MD_size(sigmd); | |
540 | else if (saltlen == -2) { | |
541 | saltlen = EVP_PKEY_size(pk) - EVP_MD_size(sigmd) - 2; | |
542 | if (((EVP_PKEY_bits(pk) - 1) & 0x7) == 0) | |
543 | saltlen--; | |
544 | } | |
47e42b3c DSH |
545 | |
546 | return rsa_pss_params_create(sigmd, mgf1md, saltlen); | |
547 | } | |
548 | ||
549 | RSA_PSS_PARAMS *rsa_pss_params_create(const EVP_MD *sigmd, | |
550 | const EVP_MD *mgf1md, int saltlen) | |
551 | { | |
552 | RSA_PSS_PARAMS *pss = RSA_PSS_PARAMS_new(); | |
52ad523c | 553 | |
90945fa3 | 554 | if (pss == NULL) |
0f113f3e MC |
555 | goto err; |
556 | if (saltlen != 20) { | |
557 | pss->saltLength = ASN1_INTEGER_new(); | |
90945fa3 | 558 | if (pss->saltLength == NULL) |
0f113f3e MC |
559 | goto err; |
560 | if (!ASN1_INTEGER_set(pss->saltLength, saltlen)) | |
561 | goto err; | |
562 | } | |
563 | if (!rsa_md_to_algor(&pss->hashAlgorithm, sigmd)) | |
564 | goto err; | |
47e42b3c | 565 | if (mgf1md == NULL) |
b6b885c6 | 566 | mgf1md = sigmd; |
0f113f3e MC |
567 | if (!rsa_md_to_mgf1(&pss->maskGenAlgorithm, mgf1md)) |
568 | goto err; | |
47e42b3c | 569 | return pss; |
0f113f3e | 570 | err: |
25aaa98a | 571 | RSA_PSS_PARAMS_free(pss); |
0f113f3e MC |
572 | return NULL; |
573 | } | |
574 | ||
47e42b3c DSH |
575 | static ASN1_STRING *rsa_ctx_to_pss_string(EVP_PKEY_CTX *pkctx) |
576 | { | |
577 | RSA_PSS_PARAMS *pss = rsa_ctx_to_pss(pkctx); | |
f291138b | 578 | ASN1_STRING *os; |
52ad523c | 579 | |
47e42b3c DSH |
580 | if (pss == NULL) |
581 | return NULL; | |
582 | ||
f291138b | 583 | os = ASN1_item_pack(pss, ASN1_ITEM_rptr(RSA_PSS_PARAMS), NULL); |
47e42b3c DSH |
584 | RSA_PSS_PARAMS_free(pss); |
585 | return os; | |
586 | } | |
587 | ||
0f113f3e MC |
588 | /* |
589 | * From PSS AlgorithmIdentifier set public key parameters. If pkey isn't NULL | |
0d4fb843 | 590 | * then the EVP_MD_CTX is setup and initialised. If it is NULL parameters are |
0f113f3e | 591 | * passed to pkctx instead. |
0574cadf | 592 | */ |
31904ecd | 593 | |
0574cadf | 594 | static int rsa_pss_to_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pkctx, |
0f113f3e MC |
595 | X509_ALGOR *sigalg, EVP_PKEY *pkey) |
596 | { | |
597 | int rv = -1; | |
598 | int saltlen; | |
599 | const EVP_MD *mgf1md = NULL, *md = NULL; | |
600 | RSA_PSS_PARAMS *pss; | |
52ad523c | 601 | |
0f113f3e | 602 | /* Sanity check: make sure it is PSS */ |
ffc6fad5 | 603 | if (OBJ_obj2nid(sigalg->algorithm) != EVP_PKEY_RSA_PSS) { |
0f113f3e MC |
604 | RSAerr(RSA_F_RSA_PSS_TO_CTX, RSA_R_UNSUPPORTED_SIGNATURE_TYPE); |
605 | return -1; | |
606 | } | |
607 | /* Decode PSS parameters */ | |
6745a1ff | 608 | pss = rsa_pss_decode(sigalg); |
0f113f3e | 609 | |
cfd81c6d | 610 | if (!rsa_pss_get_param(pss, &md, &mgf1md, &saltlen)) { |
0f113f3e MC |
611 | RSAerr(RSA_F_RSA_PSS_TO_CTX, RSA_R_INVALID_PSS_PARAMETERS); |
612 | goto err; | |
613 | } | |
0f113f3e MC |
614 | |
615 | /* We have all parameters now set up context */ | |
0f113f3e MC |
616 | if (pkey) { |
617 | if (!EVP_DigestVerifyInit(ctx, &pkctx, md, NULL, pkey)) | |
618 | goto err; | |
619 | } else { | |
620 | const EVP_MD *checkmd; | |
621 | if (EVP_PKEY_CTX_get_signature_md(pkctx, &checkmd) <= 0) | |
622 | goto err; | |
623 | if (EVP_MD_type(md) != EVP_MD_type(checkmd)) { | |
624 | RSAerr(RSA_F_RSA_PSS_TO_CTX, RSA_R_DIGEST_DOES_NOT_MATCH); | |
625 | goto err; | |
626 | } | |
627 | } | |
628 | ||
629 | if (EVP_PKEY_CTX_set_rsa_padding(pkctx, RSA_PKCS1_PSS_PADDING) <= 0) | |
630 | goto err; | |
631 | ||
632 | if (EVP_PKEY_CTX_set_rsa_pss_saltlen(pkctx, saltlen) <= 0) | |
633 | goto err; | |
634 | ||
635 | if (EVP_PKEY_CTX_set_rsa_mgf1_md(pkctx, mgf1md) <= 0) | |
636 | goto err; | |
637 | /* Carry on */ | |
638 | rv = 1; | |
639 | ||
640 | err: | |
641 | RSA_PSS_PARAMS_free(pss); | |
0f113f3e MC |
642 | return rv; |
643 | } | |
492a9e24 | 644 | |
cfd81c6d DSH |
645 | int rsa_pss_get_param(const RSA_PSS_PARAMS *pss, const EVP_MD **pmd, |
646 | const EVP_MD **pmgf1md, int *psaltlen) | |
647 | { | |
648 | if (pss == NULL) | |
649 | return 0; | |
650 | *pmd = rsa_algor_to_md(pss->hashAlgorithm); | |
651 | if (*pmd == NULL) | |
652 | return 0; | |
653 | *pmgf1md = rsa_algor_to_md(pss->maskHash); | |
654 | if (*pmgf1md == NULL) | |
655 | return 0; | |
656 | if (pss->saltLength) { | |
657 | *psaltlen = ASN1_INTEGER_get(pss->saltLength); | |
658 | if (*psaltlen < 0) { | |
659 | RSAerr(RSA_F_RSA_PSS_GET_PARAM, RSA_R_INVALID_SALT_LENGTH); | |
660 | return 0; | |
661 | } | |
662 | } else | |
663 | *psaltlen = 20; | |
664 | ||
665 | /* | |
666 | * low-level routines support only trailer field 0xbc (value 1) and | |
667 | * PKCS#1 says we should reject any other value anyway. | |
668 | */ | |
669 | if (pss->trailerField && ASN1_INTEGER_get(pss->trailerField) != 1) { | |
670 | RSAerr(RSA_F_RSA_PSS_GET_PARAM, RSA_R_INVALID_TRAILER); | |
b6b885c6 | 671 | return 0; |
cfd81c6d DSH |
672 | } |
673 | ||
674 | return 1; | |
675 | } | |
676 | ||
e968561d | 677 | #ifndef OPENSSL_NO_CMS |
0574cadf | 678 | static int rsa_cms_verify(CMS_SignerInfo *si) |
0f113f3e MC |
679 | { |
680 | int nid, nid2; | |
681 | X509_ALGOR *alg; | |
682 | EVP_PKEY_CTX *pkctx = CMS_SignerInfo_get0_pkey_ctx(si); | |
52ad523c | 683 | |
0f113f3e MC |
684 | CMS_SignerInfo_get0_algs(si, NULL, NULL, NULL, &alg); |
685 | nid = OBJ_obj2nid(alg->algorithm); | |
ffc6fad5 | 686 | if (nid == EVP_PKEY_RSA_PSS) |
0f113f3e | 687 | return rsa_pss_to_ctx(NULL, pkctx, alg, NULL); |
08be0331 DSH |
688 | /* Only PSS allowed for PSS keys */ |
689 | if (pkey_ctx_is_pss(pkctx)) { | |
690 | RSAerr(RSA_F_RSA_CMS_VERIFY, RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE); | |
691 | return 0; | |
692 | } | |
693 | if (nid == NID_rsaEncryption) | |
694 | return 1; | |
0f113f3e MC |
695 | /* Workaround for some implementation that use a signature OID */ |
696 | if (OBJ_find_sigid_algs(nid, NULL, &nid2)) { | |
697 | if (nid2 == NID_rsaEncryption) | |
698 | return 1; | |
699 | } | |
700 | return 0; | |
701 | } | |
e968561d | 702 | #endif |
0f113f3e MC |
703 | |
704 | /* | |
705 | * Customised RSA item verification routine. This is called when a signature | |
706 | * is encountered requiring special handling. We currently only handle PSS. | |
0574cadf DSH |
707 | */ |
708 | ||
0574cadf | 709 | static int rsa_item_verify(EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn, |
0f113f3e MC |
710 | X509_ALGOR *sigalg, ASN1_BIT_STRING *sig, |
711 | EVP_PKEY *pkey) | |
712 | { | |
713 | /* Sanity check: make sure it is PSS */ | |
ffc6fad5 | 714 | if (OBJ_obj2nid(sigalg->algorithm) != EVP_PKEY_RSA_PSS) { |
0f113f3e MC |
715 | RSAerr(RSA_F_RSA_ITEM_VERIFY, RSA_R_UNSUPPORTED_SIGNATURE_TYPE); |
716 | return -1; | |
717 | } | |
09f06923 | 718 | if (rsa_pss_to_ctx(ctx, NULL, sigalg, pkey) > 0) { |
0f113f3e MC |
719 | /* Carry on */ |
720 | return 2; | |
09f06923 | 721 | } |
0f113f3e MC |
722 | return -1; |
723 | } | |
0574cadf | 724 | |
e968561d | 725 | #ifndef OPENSSL_NO_CMS |
0574cadf | 726 | static int rsa_cms_sign(CMS_SignerInfo *si) |
0f113f3e MC |
727 | { |
728 | int pad_mode = RSA_PKCS1_PADDING; | |
729 | X509_ALGOR *alg; | |
730 | EVP_PKEY_CTX *pkctx = CMS_SignerInfo_get0_pkey_ctx(si); | |
731 | ASN1_STRING *os = NULL; | |
52ad523c | 732 | |
0f113f3e MC |
733 | CMS_SignerInfo_get0_algs(si, NULL, NULL, NULL, &alg); |
734 | if (pkctx) { | |
735 | if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0) | |
736 | return 0; | |
737 | } | |
738 | if (pad_mode == RSA_PKCS1_PADDING) { | |
739 | X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), V_ASN1_NULL, 0); | |
740 | return 1; | |
741 | } | |
742 | /* We don't support it */ | |
743 | if (pad_mode != RSA_PKCS1_PSS_PADDING) | |
744 | return 0; | |
47e42b3c | 745 | os = rsa_ctx_to_pss_string(pkctx); |
0f113f3e MC |
746 | if (!os) |
747 | return 0; | |
ffc6fad5 | 748 | X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_PKEY_RSA_PSS), V_ASN1_SEQUENCE, os); |
0f113f3e MC |
749 | return 1; |
750 | } | |
e968561d | 751 | #endif |
0574cadf | 752 | |
17c63d1c | 753 | static int rsa_item_sign(EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn, |
0f113f3e MC |
754 | X509_ALGOR *alg1, X509_ALGOR *alg2, |
755 | ASN1_BIT_STRING *sig) | |
756 | { | |
757 | int pad_mode; | |
6e59a892 | 758 | EVP_PKEY_CTX *pkctx = EVP_MD_CTX_pkey_ctx(ctx); |
52ad523c | 759 | |
0f113f3e MC |
760 | if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0) |
761 | return 0; | |
762 | if (pad_mode == RSA_PKCS1_PADDING) | |
763 | return 2; | |
764 | if (pad_mode == RSA_PKCS1_PSS_PADDING) { | |
765 | ASN1_STRING *os1 = NULL; | |
47e42b3c | 766 | os1 = rsa_ctx_to_pss_string(pkctx); |
0f113f3e MC |
767 | if (!os1) |
768 | return 0; | |
769 | /* Duplicate parameters if we have to */ | |
770 | if (alg2) { | |
771 | ASN1_STRING *os2 = ASN1_STRING_dup(os1); | |
772 | if (!os2) { | |
773 | ASN1_STRING_free(os1); | |
774 | return 0; | |
775 | } | |
ffc6fad5 | 776 | X509_ALGOR_set0(alg2, OBJ_nid2obj(EVP_PKEY_RSA_PSS), |
0f113f3e MC |
777 | V_ASN1_SEQUENCE, os2); |
778 | } | |
ffc6fad5 | 779 | X509_ALGOR_set0(alg1, OBJ_nid2obj(EVP_PKEY_RSA_PSS), |
0f113f3e MC |
780 | V_ASN1_SEQUENCE, os1); |
781 | return 3; | |
782 | } | |
783 | return 2; | |
784 | } | |
17c63d1c | 785 | |
e968561d | 786 | #ifndef OPENSSL_NO_CMS |
6745a1ff | 787 | static RSA_OAEP_PARAMS *rsa_oaep_decode(const X509_ALGOR *alg) |
0f113f3e | 788 | { |
6745a1ff | 789 | RSA_OAEP_PARAMS *oaep; |
0574cadf | 790 | |
6745a1ff | 791 | oaep = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(RSA_OAEP_PARAMS), |
52ad523c | 792 | alg->parameter); |
0574cadf | 793 | |
6745a1ff | 794 | if (oaep == NULL) |
0f113f3e | 795 | return NULL; |
0574cadf | 796 | |
6745a1ff DSH |
797 | if (oaep->maskGenFunc != NULL) { |
798 | oaep->maskHash = rsa_mgf1_decode(oaep->maskGenFunc); | |
799 | if (oaep->maskHash == NULL) { | |
800 | RSA_OAEP_PARAMS_free(oaep); | |
801 | return NULL; | |
802 | } | |
803 | } | |
804 | return oaep; | |
0f113f3e | 805 | } |
0574cadf DSH |
806 | |
807 | static int rsa_cms_decrypt(CMS_RecipientInfo *ri) | |
0f113f3e MC |
808 | { |
809 | EVP_PKEY_CTX *pkctx; | |
810 | X509_ALGOR *cmsalg; | |
811 | int nid; | |
812 | int rv = -1; | |
813 | unsigned char *label = NULL; | |
814 | int labellen = 0; | |
815 | const EVP_MD *mgf1md = NULL, *md = NULL; | |
816 | RSA_OAEP_PARAMS *oaep; | |
52ad523c | 817 | |
0f113f3e | 818 | pkctx = CMS_RecipientInfo_get0_pkey_ctx(ri); |
52ad523c | 819 | if (pkctx == NULL) |
0f113f3e MC |
820 | return 0; |
821 | if (!CMS_RecipientInfo_ktri_get0_algs(ri, NULL, NULL, &cmsalg)) | |
822 | return -1; | |
823 | nid = OBJ_obj2nid(cmsalg->algorithm); | |
824 | if (nid == NID_rsaEncryption) | |
825 | return 1; | |
826 | if (nid != NID_rsaesOaep) { | |
827 | RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_UNSUPPORTED_ENCRYPTION_TYPE); | |
828 | return -1; | |
829 | } | |
830 | /* Decode OAEP parameters */ | |
6745a1ff | 831 | oaep = rsa_oaep_decode(cmsalg); |
0f113f3e MC |
832 | |
833 | if (oaep == NULL) { | |
834 | RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_INVALID_OAEP_PARAMETERS); | |
835 | goto err; | |
836 | } | |
837 | ||
6745a1ff | 838 | mgf1md = rsa_algor_to_md(oaep->maskHash); |
52ad523c | 839 | if (mgf1md == NULL) |
0f113f3e MC |
840 | goto err; |
841 | md = rsa_algor_to_md(oaep->hashFunc); | |
52ad523c | 842 | if (md == NULL) |
0f113f3e MC |
843 | goto err; |
844 | ||
52ad523c | 845 | if (oaep->pSourceFunc != NULL) { |
0f113f3e | 846 | X509_ALGOR *plab = oaep->pSourceFunc; |
52ad523c | 847 | |
0f113f3e MC |
848 | if (OBJ_obj2nid(plab->algorithm) != NID_pSpecified) { |
849 | RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_UNSUPPORTED_LABEL_SOURCE); | |
850 | goto err; | |
851 | } | |
852 | if (plab->parameter->type != V_ASN1_OCTET_STRING) { | |
853 | RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_INVALID_LABEL); | |
854 | goto err; | |
855 | } | |
856 | ||
857 | label = plab->parameter->value.octet_string->data; | |
858 | /* Stop label being freed when OAEP parameters are freed */ | |
859 | plab->parameter->value.octet_string->data = NULL; | |
860 | labellen = plab->parameter->value.octet_string->length; | |
861 | } | |
862 | ||
863 | if (EVP_PKEY_CTX_set_rsa_padding(pkctx, RSA_PKCS1_OAEP_PADDING) <= 0) | |
864 | goto err; | |
865 | if (EVP_PKEY_CTX_set_rsa_oaep_md(pkctx, md) <= 0) | |
866 | goto err; | |
867 | if (EVP_PKEY_CTX_set_rsa_mgf1_md(pkctx, mgf1md) <= 0) | |
868 | goto err; | |
869 | if (EVP_PKEY_CTX_set0_rsa_oaep_label(pkctx, label, labellen) <= 0) | |
870 | goto err; | |
871 | /* Carry on */ | |
872 | rv = 1; | |
873 | ||
874 | err: | |
875 | RSA_OAEP_PARAMS_free(oaep); | |
0f113f3e MC |
876 | return rv; |
877 | } | |
0574cadf DSH |
878 | |
879 | static int rsa_cms_encrypt(CMS_RecipientInfo *ri) | |
0f113f3e MC |
880 | { |
881 | const EVP_MD *md, *mgf1md; | |
882 | RSA_OAEP_PARAMS *oaep = NULL; | |
883 | ASN1_STRING *os = NULL; | |
884 | X509_ALGOR *alg; | |
885 | EVP_PKEY_CTX *pkctx = CMS_RecipientInfo_get0_pkey_ctx(ri); | |
886 | int pad_mode = RSA_PKCS1_PADDING, rv = 0, labellen; | |
887 | unsigned char *label; | |
52ad523c | 888 | |
0f113f3e MC |
889 | CMS_RecipientInfo_ktri_get0_algs(ri, NULL, NULL, &alg); |
890 | if (pkctx) { | |
891 | if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0) | |
892 | return 0; | |
893 | } | |
894 | if (pad_mode == RSA_PKCS1_PADDING) { | |
895 | X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), V_ASN1_NULL, 0); | |
896 | return 1; | |
897 | } | |
898 | /* Not supported */ | |
899 | if (pad_mode != RSA_PKCS1_OAEP_PADDING) | |
900 | return 0; | |
901 | if (EVP_PKEY_CTX_get_rsa_oaep_md(pkctx, &md) <= 0) | |
902 | goto err; | |
903 | if (EVP_PKEY_CTX_get_rsa_mgf1_md(pkctx, &mgf1md) <= 0) | |
904 | goto err; | |
905 | labellen = EVP_PKEY_CTX_get0_rsa_oaep_label(pkctx, &label); | |
906 | if (labellen < 0) | |
907 | goto err; | |
908 | oaep = RSA_OAEP_PARAMS_new(); | |
90945fa3 | 909 | if (oaep == NULL) |
0f113f3e MC |
910 | goto err; |
911 | if (!rsa_md_to_algor(&oaep->hashFunc, md)) | |
912 | goto err; | |
913 | if (!rsa_md_to_mgf1(&oaep->maskGenFunc, mgf1md)) | |
914 | goto err; | |
915 | if (labellen > 0) { | |
5e8129f2 | 916 | ASN1_OCTET_STRING *los; |
0f113f3e | 917 | oaep->pSourceFunc = X509_ALGOR_new(); |
90945fa3 | 918 | if (oaep->pSourceFunc == NULL) |
0f113f3e | 919 | goto err; |
5e8129f2 | 920 | los = ASN1_OCTET_STRING_new(); |
90945fa3 | 921 | if (los == NULL) |
0f113f3e MC |
922 | goto err; |
923 | if (!ASN1_OCTET_STRING_set(los, label, labellen)) { | |
924 | ASN1_OCTET_STRING_free(los); | |
925 | goto err; | |
926 | } | |
927 | X509_ALGOR_set0(oaep->pSourceFunc, OBJ_nid2obj(NID_pSpecified), | |
928 | V_ASN1_OCTET_STRING, los); | |
929 | } | |
930 | /* create string with pss parameter encoding. */ | |
931 | if (!ASN1_item_pack(oaep, ASN1_ITEM_rptr(RSA_OAEP_PARAMS), &os)) | |
932 | goto err; | |
933 | X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaesOaep), V_ASN1_SEQUENCE, os); | |
934 | os = NULL; | |
935 | rv = 1; | |
936 | err: | |
25aaa98a | 937 | RSA_OAEP_PARAMS_free(oaep); |
0dfb9398 | 938 | ASN1_STRING_free(os); |
0f113f3e MC |
939 | return rv; |
940 | } | |
e968561d | 941 | #endif |
0f113f3e | 942 | |
578b5514 | 943 | const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[2] = { |
0f113f3e MC |
944 | { |
945 | EVP_PKEY_RSA, | |
946 | EVP_PKEY_RSA, | |
947 | ASN1_PKEY_SIGPARAM_NULL, | |
948 | ||
949 | "RSA", | |
950 | "OpenSSL RSA method", | |
951 | ||
952 | rsa_pub_decode, | |
953 | rsa_pub_encode, | |
954 | rsa_pub_cmp, | |
955 | rsa_pub_print, | |
956 | ||
957 | rsa_priv_decode, | |
958 | rsa_priv_encode, | |
959 | rsa_priv_print, | |
960 | ||
961 | int_rsa_size, | |
962 | rsa_bits, | |
963 | rsa_security_bits, | |
964 | ||
965 | 0, 0, 0, 0, 0, 0, | |
966 | ||
967 | rsa_sig_print, | |
968 | int_rsa_free, | |
969 | rsa_pkey_ctrl, | |
970 | old_rsa_priv_decode, | |
971 | old_rsa_priv_encode, | |
972 | rsa_item_verify, | |
973 | rsa_item_sign}, | |
974 | ||
975 | { | |
976 | EVP_PKEY_RSA2, | |
977 | EVP_PKEY_RSA, | |
978 | ASN1_PKEY_ALIAS} | |
979 | }; | |
4e8ba747 DSH |
980 | |
981 | const EVP_PKEY_ASN1_METHOD rsa_pss_asn1_meth = { | |
982 | EVP_PKEY_RSA_PSS, | |
983 | EVP_PKEY_RSA_PSS, | |
984 | ASN1_PKEY_SIGPARAM_NULL, | |
985 | ||
986 | "RSA-PSS", | |
987 | "OpenSSL RSA-PSS method", | |
988 | ||
989 | rsa_pub_decode, | |
990 | rsa_pub_encode, | |
991 | rsa_pub_cmp, | |
992 | rsa_pub_print, | |
993 | ||
994 | rsa_priv_decode, | |
995 | rsa_priv_encode, | |
996 | rsa_priv_print, | |
997 | ||
998 | int_rsa_size, | |
999 | rsa_bits, | |
1000 | rsa_security_bits, | |
1001 | ||
1002 | 0, 0, 0, 0, 0, 0, | |
1003 | ||
1004 | rsa_sig_print, | |
1005 | int_rsa_free, | |
1006 | rsa_pkey_ctrl, | |
1007 | 0, 0, | |
1008 | rsa_item_verify, | |
1009 | rsa_item_sign, | |
1010 | }; |