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Commit | Line | Data |
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62867571 | 1 | /* |
b0edda11 | 2 | * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
4a8b0c55 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
62867571 RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
d02b48c6 RE |
8 | */ |
9 | ||
10 | #include <stdio.h> | |
b39fc560 | 11 | #include "internal/cryptlib.h" |
cd420b0b | 12 | #include "internal/refcount.h" |
4d94ae00 BM |
13 | #include <openssl/bn.h> |
14 | #include <openssl/err.h> | |
ec577822 BM |
15 | #include <openssl/objects.h> |
16 | #include <openssl/evp.h> | |
ec577822 | 17 | #include <openssl/x509.h> |
3c27208f RS |
18 | #include <openssl/rsa.h> |
19 | #include <openssl/dsa.h> | |
20 | #include <openssl/dh.h> | |
b3831fbb | 21 | #include <openssl/cmac.h> |
3c27208f | 22 | #include <openssl/engine.h> |
e74bd290 | 23 | #include <openssl/params.h> |
54c1711f | 24 | #include <openssl/serializer.h> |
e74bd290 | 25 | #include <openssl/core_names.h> |
01b8b3c7 | 26 | |
25f2138b DMSP |
27 | #include "crypto/asn1.h" |
28 | #include "crypto/evp.h" | |
e74bd290 | 29 | #include "internal/provider.h" |
f6aa5774 | 30 | #include "evp_local.h" |
18e377b4 | 31 | |
e683582b SL |
32 | static void evp_pkey_free_it(EVP_PKEY *key); |
33 | ||
34 | #ifndef FIPS_MODE | |
bb2297a4 | 35 | |
8900f3e3 | 36 | int EVP_PKEY_bits(const EVP_PKEY *pkey) |
0f113f3e | 37 | { |
6508e858 RL |
38 | if (pkey != NULL) { |
39 | if (pkey->ameth == NULL) | |
40 | return pkey->cache.bits; | |
41 | else if (pkey->ameth->pkey_bits) | |
42 | return pkey->ameth->pkey_bits(pkey); | |
43 | } | |
0f113f3e MC |
44 | return 0; |
45 | } | |
58964a49 | 46 | |
2514fa79 | 47 | int EVP_PKEY_security_bits(const EVP_PKEY *pkey) |
0f113f3e MC |
48 | { |
49 | if (pkey == NULL) | |
50 | return 0; | |
6508e858 RL |
51 | if (pkey->ameth == NULL) |
52 | return pkey->cache.security_bits; | |
53 | if (pkey->ameth->pkey_security_bits == NULL) | |
0f113f3e MC |
54 | return -2; |
55 | return pkey->ameth->pkey_security_bits(pkey); | |
56 | } | |
2514fa79 | 57 | |
6b691a5c | 58 | int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode) |
0f113f3e | 59 | { |
e683582b | 60 | # ifndef OPENSSL_NO_DSA |
0f113f3e MC |
61 | if (pkey->type == EVP_PKEY_DSA) { |
62 | int ret = pkey->save_parameters; | |
63 | ||
64 | if (mode >= 0) | |
65 | pkey->save_parameters = mode; | |
26a7d938 | 66 | return ret; |
0f113f3e | 67 | } |
e683582b SL |
68 | # endif |
69 | # ifndef OPENSSL_NO_EC | |
0f113f3e MC |
70 | if (pkey->type == EVP_PKEY_EC) { |
71 | int ret = pkey->save_parameters; | |
72 | ||
73 | if (mode >= 0) | |
74 | pkey->save_parameters = mode; | |
26a7d938 | 75 | return ret; |
0f113f3e | 76 | } |
e683582b | 77 | # endif |
26a7d938 | 78 | return 0; |
0f113f3e | 79 | } |
d02b48c6 | 80 | |
a8b72844 | 81 | int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) |
0f113f3e | 82 | { |
2986ecdc DSH |
83 | if (to->type == EVP_PKEY_NONE) { |
84 | if (EVP_PKEY_set_type(to, from->type) == 0) | |
85 | return 0; | |
86 | } else if (to->type != from->type) { | |
0f113f3e MC |
87 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_DIFFERENT_KEY_TYPES); |
88 | goto err; | |
89 | } | |
90 | ||
91 | if (EVP_PKEY_missing_parameters(from)) { | |
92 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_MISSING_PARAMETERS); | |
93 | goto err; | |
94 | } | |
f72f00d4 DSH |
95 | |
96 | if (!EVP_PKEY_missing_parameters(to)) { | |
97 | if (EVP_PKEY_cmp_parameters(to, from) == 1) | |
98 | return 1; | |
99 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_DIFFERENT_PARAMETERS); | |
100 | return 0; | |
101 | } | |
102 | ||
0f113f3e MC |
103 | if (from->ameth && from->ameth->param_copy) |
104 | return from->ameth->param_copy(to, from); | |
105 | err: | |
106 | return 0; | |
107 | } | |
d02b48c6 | 108 | |
af0f0f3e | 109 | int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey) |
0f113f3e | 110 | { |
ab5c77b4 | 111 | if (pkey != NULL && pkey->ameth && pkey->ameth->param_missing) |
0f113f3e MC |
112 | return pkey->ameth->param_missing(pkey); |
113 | return 0; | |
114 | } | |
d02b48c6 | 115 | |
af0f0f3e | 116 | int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) |
0f113f3e MC |
117 | { |
118 | if (a->type != b->type) | |
119 | return -1; | |
120 | if (a->ameth && a->ameth->param_cmp) | |
121 | return a->ameth->param_cmp(a, b); | |
122 | return -2; | |
123 | } | |
58964a49 | 124 | |
af0f0f3e | 125 | int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b) |
0f113f3e MC |
126 | { |
127 | if (a->type != b->type) | |
128 | return -1; | |
129 | ||
130 | if (a->ameth) { | |
131 | int ret; | |
132 | /* Compare parameters if the algorithm has them */ | |
133 | if (a->ameth->param_cmp) { | |
134 | ret = a->ameth->param_cmp(a, b); | |
135 | if (ret <= 0) | |
136 | return ret; | |
137 | } | |
138 | ||
139 | if (a->ameth->pub_cmp) | |
140 | return a->ameth->pub_cmp(a, b); | |
141 | } | |
142 | ||
143 | return -2; | |
144 | } | |
e6526fbf | 145 | |
2872dbe1 | 146 | |
0f113f3e MC |
147 | /* |
148 | * Setup a public key ASN1 method and ENGINE from a NID or a string. If pkey | |
149 | * is NULL just return 1 or 0 if the algorithm exists. | |
01b8b3c7 DSH |
150 | */ |
151 | ||
a08802ce MC |
152 | static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str, |
153 | int len) | |
0f113f3e MC |
154 | { |
155 | const EVP_PKEY_ASN1_METHOD *ameth; | |
a08802ce MC |
156 | ENGINE **eptr = (e == NULL) ? &e : NULL; |
157 | ||
0f113f3e MC |
158 | if (pkey) { |
159 | if (pkey->pkey.ptr) | |
e683582b | 160 | evp_pkey_free_it(pkey); |
0f113f3e MC |
161 | /* |
162 | * If key type matches and a method exists then this lookup has | |
163 | * succeeded once so just indicate success. | |
164 | */ | |
165 | if ((type == pkey->save_type) && pkey->ameth) | |
166 | return 1; | |
e683582b | 167 | # ifndef OPENSSL_NO_ENGINE |
d19b01ad | 168 | /* If we have ENGINEs release them */ |
7c96dbcd RS |
169 | ENGINE_finish(pkey->engine); |
170 | pkey->engine = NULL; | |
d19b01ad DSH |
171 | ENGINE_finish(pkey->pmeth_engine); |
172 | pkey->pmeth_engine = NULL; | |
e683582b | 173 | # endif |
0f113f3e MC |
174 | } |
175 | if (str) | |
a08802ce | 176 | ameth = EVP_PKEY_asn1_find_str(eptr, str, len); |
0f113f3e | 177 | else |
a08802ce | 178 | ameth = EVP_PKEY_asn1_find(eptr, type); |
e683582b | 179 | # ifndef OPENSSL_NO_ENGINE |
a08802ce | 180 | if (pkey == NULL && eptr != NULL) |
0f113f3e | 181 | ENGINE_finish(e); |
e683582b | 182 | # endif |
7c96dbcd | 183 | if (ameth == NULL) { |
0f113f3e MC |
184 | EVPerr(EVP_F_PKEY_SET_TYPE, EVP_R_UNSUPPORTED_ALGORITHM); |
185 | return 0; | |
186 | } | |
187 | if (pkey) { | |
188 | pkey->ameth = ameth; | |
189 | pkey->engine = e; | |
190 | ||
191 | pkey->type = pkey->ameth->pkey_id; | |
192 | pkey->save_type = type; | |
193 | } | |
194 | return 1; | |
195 | } | |
01b8b3c7 | 196 | |
f929439f MC |
197 | EVP_PKEY *EVP_PKEY_new_raw_private_key(int type, ENGINE *e, |
198 | const unsigned char *priv, | |
199 | size_t len) | |
a08802ce MC |
200 | { |
201 | EVP_PKEY *ret = EVP_PKEY_new(); | |
202 | ||
203 | if (ret == NULL | |
204 | || !pkey_set_type(ret, e, type, NULL, -1)) { | |
205 | /* EVPerr already called */ | |
206 | goto err; | |
207 | } | |
208 | ||
209 | if (ret->ameth->set_priv_key == NULL) { | |
f929439f | 210 | EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PRIVATE_KEY, |
a08802ce MC |
211 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
212 | goto err; | |
213 | } | |
214 | ||
215 | if (!ret->ameth->set_priv_key(ret, priv, len)) { | |
f929439f | 216 | EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PRIVATE_KEY, EVP_R_KEY_SETUP_FAILED); |
a08802ce MC |
217 | goto err; |
218 | } | |
219 | ||
220 | return ret; | |
221 | ||
222 | err: | |
223 | EVP_PKEY_free(ret); | |
224 | return NULL; | |
225 | } | |
226 | ||
f929439f MC |
227 | EVP_PKEY *EVP_PKEY_new_raw_public_key(int type, ENGINE *e, |
228 | const unsigned char *pub, | |
229 | size_t len) | |
a08802ce MC |
230 | { |
231 | EVP_PKEY *ret = EVP_PKEY_new(); | |
232 | ||
233 | if (ret == NULL | |
234 | || !pkey_set_type(ret, e, type, NULL, -1)) { | |
235 | /* EVPerr already called */ | |
236 | goto err; | |
237 | } | |
238 | ||
239 | if (ret->ameth->set_pub_key == NULL) { | |
f929439f | 240 | EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PUBLIC_KEY, |
a08802ce MC |
241 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
242 | goto err; | |
243 | } | |
244 | ||
245 | if (!ret->ameth->set_pub_key(ret, pub, len)) { | |
f929439f | 246 | EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PUBLIC_KEY, EVP_R_KEY_SETUP_FAILED); |
a08802ce MC |
247 | goto err; |
248 | } | |
249 | ||
250 | return ret; | |
251 | ||
252 | err: | |
253 | EVP_PKEY_free(ret); | |
254 | return NULL; | |
255 | } | |
256 | ||
0d124b0a MC |
257 | int EVP_PKEY_get_raw_private_key(const EVP_PKEY *pkey, unsigned char *priv, |
258 | size_t *len) | |
259 | { | |
260 | if (pkey->ameth->get_priv_key == NULL) { | |
261 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PRIVATE_KEY, | |
262 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
263 | return 0; | |
264 | } | |
265 | ||
266 | if (!pkey->ameth->get_priv_key(pkey, priv, len)) { | |
267 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PRIVATE_KEY, EVP_R_GET_RAW_KEY_FAILED); | |
268 | return 0; | |
269 | } | |
270 | ||
271 | return 1; | |
272 | } | |
273 | ||
274 | int EVP_PKEY_get_raw_public_key(const EVP_PKEY *pkey, unsigned char *pub, | |
275 | size_t *len) | |
276 | { | |
277 | if (pkey->ameth->get_pub_key == NULL) { | |
278 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY, | |
279 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
280 | return 0; | |
281 | } | |
282 | ||
283 | if (!pkey->ameth->get_pub_key(pkey, pub, len)) { | |
284 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY, EVP_R_GET_RAW_KEY_FAILED); | |
285 | return 0; | |
286 | } | |
287 | ||
288 | return 1; | |
289 | } | |
290 | ||
b3831fbb MC |
291 | EVP_PKEY *EVP_PKEY_new_CMAC_key(ENGINE *e, const unsigned char *priv, |
292 | size_t len, const EVP_CIPHER *cipher) | |
293 | { | |
e683582b SL |
294 | # ifndef OPENSSL_NO_CMAC |
295 | # ifndef OPENSSL_NO_ENGINE | |
9a7846df | 296 | const char *engine_id = e != NULL ? ENGINE_get_id(e) : NULL; |
e683582b | 297 | # endif |
e74bd290 RL |
298 | const char *cipher_name = EVP_CIPHER_name(cipher); |
299 | const OSSL_PROVIDER *prov = EVP_CIPHER_provider(cipher); | |
300 | OPENSSL_CTX *libctx = | |
301 | prov == NULL ? NULL : ossl_provider_library_context(prov); | |
b3831fbb | 302 | EVP_PKEY *ret = EVP_PKEY_new(); |
81ff9eeb | 303 | EVP_MAC *cmac = EVP_MAC_fetch(libctx, OSSL_MAC_NAME_CMAC, NULL); |
e74bd290 RL |
304 | EVP_MAC_CTX *cmctx = cmac != NULL ? EVP_MAC_CTX_new(cmac) : NULL; |
305 | OSSL_PARAM params[4]; | |
306 | size_t paramsn = 0; | |
b3831fbb MC |
307 | |
308 | if (ret == NULL | |
309 | || cmctx == NULL | |
310 | || !pkey_set_type(ret, e, EVP_PKEY_CMAC, NULL, -1)) { | |
311 | /* EVPerr already called */ | |
312 | goto err; | |
313 | } | |
314 | ||
e683582b | 315 | # ifndef OPENSSL_NO_ENGINE |
9a7846df | 316 | if (engine_id != NULL) |
e74bd290 | 317 | params[paramsn++] = |
69db3044 | 318 | OSSL_PARAM_construct_utf8_string("engine", (char *)engine_id, 0); |
e683582b | 319 | # endif |
3be06e0d | 320 | |
e74bd290 | 321 | params[paramsn++] = |
703170d4 | 322 | OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_CIPHER, |
7f588d20 | 323 | (char *)cipher_name, 0); |
e74bd290 RL |
324 | params[paramsn++] = |
325 | OSSL_PARAM_construct_octet_string(OSSL_MAC_PARAM_KEY, | |
326 | (char *)priv, len); | |
327 | params[paramsn] = OSSL_PARAM_construct_end(); | |
328 | ||
329 | if (!EVP_MAC_CTX_set_params(cmctx, params)) { | |
b3831fbb MC |
330 | EVPerr(EVP_F_EVP_PKEY_NEW_CMAC_KEY, EVP_R_KEY_SETUP_FAILED); |
331 | goto err; | |
332 | } | |
333 | ||
334 | ret->pkey.ptr = cmctx; | |
335 | return ret; | |
336 | ||
337 | err: | |
338 | EVP_PKEY_free(ret); | |
b8d77c9b | 339 | EVP_MAC_CTX_free(cmctx); |
e74bd290 | 340 | EVP_MAC_free(cmac); |
b3831fbb | 341 | return NULL; |
e683582b | 342 | # else |
df6d51e2 MC |
343 | EVPerr(EVP_F_EVP_PKEY_NEW_CMAC_KEY, |
344 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
345 | return NULL; | |
e683582b | 346 | # endif |
b3831fbb | 347 | } |
a08802ce | 348 | |
01b8b3c7 | 349 | int EVP_PKEY_set_type(EVP_PKEY *pkey, int type) |
0f113f3e | 350 | { |
a08802ce | 351 | return pkey_set_type(pkey, NULL, type, NULL, -1); |
0f113f3e | 352 | } |
01b8b3c7 DSH |
353 | |
354 | int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len) | |
0f113f3e | 355 | { |
a08802ce | 356 | return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, str, len); |
0f113f3e | 357 | } |
2f2e6b62 JL |
358 | |
359 | int EVP_PKEY_set_alias_type(EVP_PKEY *pkey, int type) | |
360 | { | |
361 | if (pkey->type == type) { | |
362 | return 1; /* it already is that type */ | |
363 | } | |
364 | ||
365 | /* | |
366 | * The application is requesting to alias this to a different pkey type, | |
367 | * but not one that resolves to the base type. | |
368 | */ | |
369 | if (EVP_PKEY_type(type) != EVP_PKEY_base_id(pkey)) { | |
370 | EVPerr(EVP_F_EVP_PKEY_SET_ALIAS_TYPE, EVP_R_UNSUPPORTED_ALGORITHM); | |
371 | return 0; | |
372 | } | |
373 | ||
374 | pkey->type = type; | |
375 | return 1; | |
376 | } | |
377 | ||
e683582b | 378 | # ifndef OPENSSL_NO_ENGINE |
d19b01ad DSH |
379 | int EVP_PKEY_set1_engine(EVP_PKEY *pkey, ENGINE *e) |
380 | { | |
381 | if (e != NULL) { | |
382 | if (!ENGINE_init(e)) { | |
383 | EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, ERR_R_ENGINE_LIB); | |
384 | return 0; | |
385 | } | |
386 | if (ENGINE_get_pkey_meth(e, pkey->type) == NULL) { | |
387 | ENGINE_finish(e); | |
388 | EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, EVP_R_UNSUPPORTED_ALGORITHM); | |
389 | return 0; | |
390 | } | |
391 | } | |
392 | ENGINE_finish(pkey->pmeth_engine); | |
393 | pkey->pmeth_engine = e; | |
394 | return 1; | |
395 | } | |
229f7b38 DB |
396 | |
397 | ENGINE *EVP_PKEY_get0_engine(const EVP_PKEY *pkey) | |
398 | { | |
399 | return pkey->engine; | |
400 | } | |
e683582b | 401 | # endif |
01b8b3c7 | 402 | int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) |
0f113f3e | 403 | { |
f4e4382c RL |
404 | int alias = type; |
405 | ||
406 | if (EVP_PKEY_type(type) == EVP_PKEY_EC) { | |
407 | const EC_GROUP *group = EC_KEY_get0_group(key); | |
408 | ||
409 | if (group != NULL && EC_GROUP_get_curve_name(group) == NID_sm2) | |
410 | alias = EVP_PKEY_SM2; | |
411 | } | |
412 | ||
e34c66c6 | 413 | if (pkey == NULL || !EVP_PKEY_set_type(pkey, type)) |
0f113f3e | 414 | return 0; |
f4e4382c RL |
415 | if (!EVP_PKEY_set_alias_type(pkey, alias)) |
416 | return 0; | |
0f113f3e MC |
417 | pkey->pkey.ptr = key; |
418 | return (key != NULL); | |
419 | } | |
d02b48c6 | 420 | |
3aeb9348 | 421 | void *EVP_PKEY_get0(const EVP_PKEY *pkey) |
0f113f3e MC |
422 | { |
423 | return pkey->pkey.ptr; | |
424 | } | |
db98bbc1 | 425 | |
ebad0b0b NM |
426 | const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len) |
427 | { | |
428 | ASN1_OCTET_STRING *os = NULL; | |
429 | if (pkey->type != EVP_PKEY_HMAC) { | |
430 | EVPerr(EVP_F_EVP_PKEY_GET0_HMAC, EVP_R_EXPECTING_AN_HMAC_KEY); | |
431 | return NULL; | |
432 | } | |
433 | os = EVP_PKEY_get0(pkey); | |
434 | *len = os->length; | |
435 | return os->data; | |
436 | } | |
437 | ||
e683582b | 438 | # ifndef OPENSSL_NO_POLY1305 |
52ad5b60 TS |
439 | const unsigned char *EVP_PKEY_get0_poly1305(const EVP_PKEY *pkey, size_t *len) |
440 | { | |
441 | ASN1_OCTET_STRING *os = NULL; | |
442 | if (pkey->type != EVP_PKEY_POLY1305) { | |
443 | EVPerr(EVP_F_EVP_PKEY_GET0_POLY1305, EVP_R_EXPECTING_A_POLY1305_KEY); | |
444 | return NULL; | |
445 | } | |
446 | os = EVP_PKEY_get0(pkey); | |
447 | *len = os->length; | |
448 | return os->data; | |
449 | } | |
e683582b | 450 | # endif |
52ad5b60 | 451 | |
e683582b | 452 | # ifndef OPENSSL_NO_SIPHASH |
3f5616d7 TS |
453 | const unsigned char *EVP_PKEY_get0_siphash(const EVP_PKEY *pkey, size_t *len) |
454 | { | |
455 | ASN1_OCTET_STRING *os = NULL; | |
456 | ||
457 | if (pkey->type != EVP_PKEY_SIPHASH) { | |
458 | EVPerr(EVP_F_EVP_PKEY_GET0_SIPHASH, EVP_R_EXPECTING_A_SIPHASH_KEY); | |
459 | return NULL; | |
460 | } | |
461 | os = EVP_PKEY_get0(pkey); | |
462 | *len = os->length; | |
463 | return os->data; | |
464 | } | |
e683582b | 465 | # endif |
3f5616d7 | 466 | |
e683582b | 467 | # ifndef OPENSSL_NO_RSA |
c7cb16a8 | 468 | int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) |
52664f50 | 469 | { |
0f113f3e MC |
470 | int ret = EVP_PKEY_assign_RSA(pkey, key); |
471 | if (ret) | |
472 | RSA_up_ref(key); | |
473 | return ret; | |
52664f50 DSH |
474 | } |
475 | ||
9fdcc21f | 476 | RSA *EVP_PKEY_get0_RSA(const EVP_PKEY *pkey) |
0f113f3e | 477 | { |
465a58b1 | 478 | if (pkey->type != EVP_PKEY_RSA && pkey->type != EVP_PKEY_RSA_PSS) { |
2872dbe1 | 479 | EVPerr(EVP_F_EVP_PKEY_GET0_RSA, EVP_R_EXPECTING_AN_RSA_KEY); |
0f113f3e MC |
480 | return NULL; |
481 | } | |
0f113f3e | 482 | return pkey->pkey.rsa; |
f769ce3e | 483 | } |
2872dbe1 DSH |
484 | |
485 | RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey) | |
486 | { | |
487 | RSA *ret = EVP_PKEY_get0_RSA(pkey); | |
488 | if (ret != NULL) | |
489 | RSA_up_ref(ret); | |
490 | return ret; | |
491 | } | |
e683582b | 492 | # endif |
f769ce3e | 493 | |
e683582b | 494 | # ifndef OPENSSL_NO_DSA |
c7cb16a8 | 495 | int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) |
52664f50 | 496 | { |
0f113f3e MC |
497 | int ret = EVP_PKEY_assign_DSA(pkey, key); |
498 | if (ret) | |
499 | DSA_up_ref(key); | |
500 | return ret; | |
52664f50 DSH |
501 | } |
502 | ||
9fdcc21f | 503 | DSA *EVP_PKEY_get0_DSA(const EVP_PKEY *pkey) |
0f113f3e MC |
504 | { |
505 | if (pkey->type != EVP_PKEY_DSA) { | |
2872dbe1 | 506 | EVPerr(EVP_F_EVP_PKEY_GET0_DSA, EVP_R_EXPECTING_A_DSA_KEY); |
0f113f3e MC |
507 | return NULL; |
508 | } | |
0f113f3e | 509 | return pkey->pkey.dsa; |
f769ce3e | 510 | } |
2872dbe1 DSH |
511 | |
512 | DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) | |
513 | { | |
514 | DSA *ret = EVP_PKEY_get0_DSA(pkey); | |
515 | if (ret != NULL) | |
516 | DSA_up_ref(ret); | |
517 | return ret; | |
518 | } | |
e683582b | 519 | # endif |
f769ce3e | 520 | |
e683582b | 521 | # ifndef OPENSSL_NO_EC |
4d94ae00 | 522 | |
14a7cfb3 | 523 | int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) |
4d94ae00 | 524 | { |
0f113f3e MC |
525 | int ret = EVP_PKEY_assign_EC_KEY(pkey, key); |
526 | if (ret) | |
527 | EC_KEY_up_ref(key); | |
528 | return ret; | |
4d94ae00 BM |
529 | } |
530 | ||
9fdcc21f | 531 | EC_KEY *EVP_PKEY_get0_EC_KEY(const EVP_PKEY *pkey) |
4d94ae00 | 532 | { |
f4e4382c | 533 | if (EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) { |
2872dbe1 | 534 | EVPerr(EVP_F_EVP_PKEY_GET0_EC_KEY, EVP_R_EXPECTING_A_EC_KEY); |
0f113f3e MC |
535 | return NULL; |
536 | } | |
0f113f3e | 537 | return pkey->pkey.ec; |
4d94ae00 | 538 | } |
2872dbe1 DSH |
539 | |
540 | EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) | |
541 | { | |
542 | EC_KEY *ret = EVP_PKEY_get0_EC_KEY(pkey); | |
543 | if (ret != NULL) | |
544 | EC_KEY_up_ref(ret); | |
545 | return ret; | |
546 | } | |
e683582b | 547 | # endif |
4d94ae00 | 548 | |
e683582b | 549 | # ifndef OPENSSL_NO_DH |
52664f50 | 550 | |
c7cb16a8 | 551 | int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) |
52664f50 | 552 | { |
32c869ff MC |
553 | int type = DH_get0_q(key) == NULL ? EVP_PKEY_DH : EVP_PKEY_DHX; |
554 | int ret = EVP_PKEY_assign(pkey, type, key); | |
555 | ||
0f113f3e MC |
556 | if (ret) |
557 | DH_up_ref(key); | |
558 | return ret; | |
52664f50 DSH |
559 | } |
560 | ||
9fdcc21f | 561 | DH *EVP_PKEY_get0_DH(const EVP_PKEY *pkey) |
0f113f3e MC |
562 | { |
563 | if (pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) { | |
2872dbe1 | 564 | EVPerr(EVP_F_EVP_PKEY_GET0_DH, EVP_R_EXPECTING_A_DH_KEY); |
0f113f3e MC |
565 | return NULL; |
566 | } | |
0f113f3e | 567 | return pkey->pkey.dh; |
f769ce3e | 568 | } |
2872dbe1 DSH |
569 | |
570 | DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) | |
571 | { | |
572 | DH *ret = EVP_PKEY_get0_DH(pkey); | |
573 | if (ret != NULL) | |
574 | DH_up_ref(ret); | |
575 | return ret; | |
576 | } | |
e683582b | 577 | # endif |
f769ce3e | 578 | |
6b691a5c | 579 | int EVP_PKEY_type(int type) |
0f113f3e MC |
580 | { |
581 | int ret; | |
582 | const EVP_PKEY_ASN1_METHOD *ameth; | |
583 | ENGINE *e; | |
584 | ameth = EVP_PKEY_asn1_find(&e, type); | |
585 | if (ameth) | |
586 | ret = ameth->pkey_id; | |
587 | else | |
588 | ret = NID_undef; | |
e683582b | 589 | # ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 590 | ENGINE_finish(e); |
e683582b | 591 | # endif |
0f113f3e MC |
592 | return ret; |
593 | } | |
d02b48c6 | 594 | |
7f57b076 | 595 | int EVP_PKEY_id(const EVP_PKEY *pkey) |
0f113f3e MC |
596 | { |
597 | return pkey->type; | |
598 | } | |
7f57b076 DSH |
599 | |
600 | int EVP_PKEY_base_id(const EVP_PKEY *pkey) | |
0f113f3e MC |
601 | { |
602 | return EVP_PKEY_type(pkey->type); | |
603 | } | |
7f57b076 | 604 | |
d02b48c6 | 605 | |
f1299839 RL |
606 | static int print_reset_indent(BIO **out, int pop_f_prefix, long saved_indent) |
607 | { | |
608 | BIO_set_indent(*out, saved_indent); | |
609 | if (pop_f_prefix) { | |
610 | BIO *next = BIO_pop(*out); | |
611 | ||
612 | BIO_free(*out); | |
613 | *out = next; | |
614 | } | |
615 | return 1; | |
616 | } | |
617 | ||
618 | static int print_set_indent(BIO **out, int *pop_f_prefix, long *saved_indent, | |
619 | long indent) | |
620 | { | |
621 | *pop_f_prefix = 0; | |
622 | *saved_indent = 0; | |
623 | if (indent > 0) { | |
624 | long i = BIO_get_indent(*out); | |
625 | ||
626 | *saved_indent = (i < 0 ? 0 : i); | |
627 | if (BIO_set_indent(*out, indent) <= 0) { | |
628 | if ((*out = BIO_push(BIO_new(BIO_f_prefix()), *out)) == NULL) | |
629 | return 0; | |
630 | *pop_f_prefix = 1; | |
631 | } | |
632 | if (BIO_set_indent(*out, indent) <= 0) { | |
633 | print_reset_indent(out, *pop_f_prefix, *saved_indent); | |
634 | return 0; | |
635 | } | |
636 | } | |
637 | return 1; | |
638 | } | |
639 | ||
35208f36 | 640 | static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent, |
0f113f3e MC |
641 | const char *kstr) |
642 | { | |
5310a4e6 P |
643 | return BIO_indent(out, indent, 128) |
644 | && BIO_printf(out, "%s algorithm \"%s\" unsupported\n", | |
645 | kstr, OBJ_nid2ln(pkey->type)) > 0; | |
0f113f3e | 646 | } |
35208f36 | 647 | |
f1299839 RL |
648 | static int print_pkey(const EVP_PKEY *pkey, BIO *out, int indent, |
649 | const char *propquery /* For provided serialization */, | |
650 | int (*legacy_print)(BIO *out, const EVP_PKEY *pkey, | |
651 | int indent, ASN1_PCTX *pctx), | |
652 | ASN1_PCTX *legacy_pctx /* For legacy print */) | |
0f113f3e | 653 | { |
f1299839 RL |
654 | int pop_f_prefix; |
655 | long saved_indent; | |
656 | OSSL_SERIALIZER_CTX *ctx = NULL; | |
657 | int ret = -2; /* default to unsupported */ | |
658 | ||
659 | if (!print_set_indent(&out, &pop_f_prefix, &saved_indent, indent)) | |
660 | return 0; | |
54c1711f | 661 | |
f1299839 | 662 | ctx = OSSL_SERIALIZER_CTX_new_by_EVP_PKEY(pkey, propquery); |
54c1711f RL |
663 | if (OSSL_SERIALIZER_CTX_get_serializer(ctx) != NULL) |
664 | ret = OSSL_SERIALIZER_to_bio(ctx, out); | |
665 | OSSL_SERIALIZER_CTX_free(ctx); | |
666 | ||
667 | if (ret != -2) | |
f1299839 | 668 | goto end; |
54c1711f RL |
669 | |
670 | /* legacy fallback */ | |
f1299839 RL |
671 | if (legacy_print != NULL) |
672 | ret = legacy_print(out, pkey, 0, legacy_pctx); | |
673 | else | |
674 | ret = unsup_alg(out, pkey, 0, "Public Key"); | |
0f113f3e | 675 | |
f1299839 RL |
676 | end: |
677 | print_reset_indent(&out, pop_f_prefix, saved_indent); | |
678 | return ret; | |
679 | } | |
680 | ||
681 | int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, | |
682 | int indent, ASN1_PCTX *pctx) | |
683 | { | |
684 | return print_pkey(pkey, out, indent, OSSL_SERIALIZER_PUBKEY_TO_TEXT_PQ, | |
685 | (pkey->ameth != NULL ? pkey->ameth->pub_print : NULL), | |
686 | pctx); | |
0f113f3e | 687 | } |
35208f36 DSH |
688 | |
689 | int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
690 | int indent, ASN1_PCTX *pctx) |
691 | { | |
f1299839 RL |
692 | return print_pkey(pkey, out, indent, OSSL_SERIALIZER_PrivateKey_TO_TEXT_PQ, |
693 | (pkey->ameth != NULL ? pkey->ameth->priv_print : NULL), | |
694 | pctx); | |
0f113f3e | 695 | } |
35208f36 DSH |
696 | |
697 | int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
698 | int indent, ASN1_PCTX *pctx) |
699 | { | |
f1299839 RL |
700 | return print_pkey(pkey, out, indent, OSSL_SERIALIZER_Parameters_TO_TEXT_PQ, |
701 | (pkey->ameth != NULL ? pkey->ameth->param_print : NULL), | |
702 | pctx); | |
0f113f3e | 703 | } |
03919683 | 704 | |
ead0d234 RL |
705 | static int legacy_asn1_ctrl_to_param(EVP_PKEY *pkey, int op, |
706 | int arg1, void *arg2) | |
707 | { | |
708 | if (pkey->pkeys[0].keymgmt == NULL) | |
709 | return 0; | |
710 | switch (op) { | |
711 | case ASN1_PKEY_CTRL_DEFAULT_MD_NID: | |
712 | { | |
713 | char mdname[80] = ""; | |
714 | int nid; | |
715 | int rv = EVP_PKEY_get_default_digest_name(pkey, mdname, | |
716 | sizeof(mdname)); | |
717 | ||
718 | if (rv <= 0) | |
719 | return rv; | |
720 | nid = OBJ_sn2nid(mdname); | |
721 | if (nid == NID_undef) | |
722 | nid = OBJ_ln2nid(mdname); | |
723 | if (nid == NID_undef) | |
724 | return 0; | |
725 | *(int *)arg2 = nid; | |
726 | return 1; | |
727 | } | |
728 | default: | |
729 | return -2; | |
730 | } | |
731 | } | |
732 | ||
5d6aaf8a | 733 | static int evp_pkey_asn1_ctrl(EVP_PKEY *pkey, int op, int arg1, void *arg2) |
0f113f3e | 734 | { |
ead0d234 RL |
735 | if (pkey->ameth == NULL) |
736 | return legacy_asn1_ctrl_to_param(pkey, op, arg1, arg2); | |
737 | if (pkey->ameth->pkey_ctrl == NULL) | |
0f113f3e | 738 | return -2; |
5d6aaf8a DSH |
739 | return pkey->ameth->pkey_ctrl(pkey, op, arg1, arg2); |
740 | } | |
741 | ||
742 | int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid) | |
743 | { | |
744 | return evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 0, pnid); | |
745 | } | |
746 | ||
ead0d234 RL |
747 | int EVP_PKEY_get_default_digest_name(EVP_PKEY *pkey, |
748 | char *mdname, size_t mdname_sz) | |
749 | { | |
750 | if (pkey->ameth == NULL) { | |
751 | OSSL_PARAM params[3]; | |
752 | char mddefault[100] = ""; | |
753 | char mdmandatory[100] = ""; | |
754 | ||
755 | params[0] = | |
756 | OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, | |
757 | mddefault, sizeof(mddefault)); | |
758 | params[1] = | |
759 | OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_MANDATORY_DIGEST, | |
760 | mdmandatory, | |
761 | sizeof(mdmandatory)); | |
762 | params[2] = OSSL_PARAM_construct_end(); | |
b305452f RL |
763 | if (!evp_keymgmt_get_params(pkey->pkeys[0].keymgmt, |
764 | pkey->pkeys[0].keydata, | |
765 | params)) | |
ead0d234 RL |
766 | return 0; |
767 | if (mdmandatory[0] != '\0') { | |
768 | OPENSSL_strlcpy(mdname, mdmandatory, mdname_sz); | |
769 | return 2; | |
770 | } | |
771 | OPENSSL_strlcpy(mdname, mddefault, mdname_sz); | |
772 | return 1; | |
773 | } | |
774 | ||
775 | { | |
776 | int nid = NID_undef; | |
777 | int rv = EVP_PKEY_get_default_digest_nid(pkey, &nid); | |
778 | const char *name = rv > 0 ? OBJ_nid2sn(nid) : NULL; | |
779 | ||
780 | if (rv > 0) | |
781 | OPENSSL_strlcpy(mdname, name, mdname_sz); | |
782 | return rv; | |
783 | } | |
784 | } | |
785 | ||
ecbb2fca DW |
786 | int EVP_PKEY_supports_digest_nid(EVP_PKEY *pkey, int nid) |
787 | { | |
788 | int rv, default_nid; | |
789 | ||
790 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SUPPORTS_MD_NID, nid, NULL); | |
791 | if (rv == -2) { | |
792 | /* | |
793 | * If there is a mandatory default digest and this isn't it, then | |
794 | * the answer is 'no'. | |
795 | */ | |
796 | rv = EVP_PKEY_get_default_digest_nid(pkey, &default_nid); | |
797 | if (rv == 2) | |
798 | return (nid == default_nid); | |
799 | /* zero is an error from EVP_PKEY_get_default_digest_nid() */ | |
800 | if (rv == 0) | |
801 | return -1; | |
802 | } | |
803 | return rv; | |
804 | } | |
805 | ||
5d6aaf8a DSH |
806 | int EVP_PKEY_set1_tls_encodedpoint(EVP_PKEY *pkey, |
807 | const unsigned char *pt, size_t ptlen) | |
808 | { | |
809 | if (ptlen > INT_MAX) | |
810 | return 0; | |
811 | if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, ptlen, | |
812 | (void *)pt) <= 0) | |
813 | return 0; | |
814 | return 1; | |
815 | } | |
816 | ||
817 | size_t EVP_PKEY_get1_tls_encodedpoint(EVP_PKEY *pkey, unsigned char **ppt) | |
818 | { | |
819 | int rv; | |
820 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppt); | |
821 | if (rv <= 0) | |
822 | return 0; | |
823 | return rv; | |
0f113f3e | 824 | } |
e683582b SL |
825 | |
826 | #endif /* FIPS_MODE */ | |
827 | ||
828 | /*- All methods below can also be used in FIPS_MODE */ | |
829 | ||
830 | EVP_PKEY *EVP_PKEY_new(void) | |
831 | { | |
832 | EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret)); | |
833 | ||
834 | if (ret == NULL) { | |
835 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
836 | return NULL; | |
837 | } | |
838 | ret->type = EVP_PKEY_NONE; | |
839 | ret->save_type = EVP_PKEY_NONE; | |
840 | ret->references = 1; | |
841 | ret->save_parameters = 1; | |
842 | ret->lock = CRYPTO_THREAD_lock_new(); | |
843 | if (ret->lock == NULL) { | |
844 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
845 | OPENSSL_free(ret); | |
846 | return NULL; | |
847 | } | |
848 | return ret; | |
849 | } | |
850 | ||
851 | int EVP_PKEY_up_ref(EVP_PKEY *pkey) | |
852 | { | |
853 | int i; | |
854 | ||
855 | if (CRYPTO_UP_REF(&pkey->references, &i, pkey->lock) <= 0) | |
856 | return 0; | |
857 | ||
858 | REF_PRINT_COUNT("EVP_PKEY", pkey); | |
859 | REF_ASSERT_ISNT(i < 2); | |
860 | return ((i > 1) ? 1 : 0); | |
861 | } | |
862 | ||
863 | static void evp_pkey_free_it(EVP_PKEY *x) | |
864 | { | |
865 | /* internal function; x is never NULL */ | |
866 | ||
68552cde | 867 | evp_keymgmt_util_clear_pkey_cache(x); |
e683582b SL |
868 | |
869 | if (x->ameth && x->ameth->pkey_free) { | |
870 | x->ameth->pkey_free(x); | |
871 | x->pkey.ptr = NULL; | |
872 | } | |
873 | #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE) | |
874 | ENGINE_finish(x->engine); | |
875 | x->engine = NULL; | |
876 | ENGINE_finish(x->pmeth_engine); | |
877 | x->pmeth_engine = NULL; | |
878 | #endif | |
879 | } | |
880 | ||
881 | void EVP_PKEY_free(EVP_PKEY *x) | |
882 | { | |
883 | int i; | |
884 | ||
885 | if (x == NULL) | |
886 | return; | |
887 | ||
888 | CRYPTO_DOWN_REF(&x->references, &i, x->lock); | |
889 | REF_PRINT_COUNT("EVP_PKEY", x); | |
890 | if (i > 0) | |
891 | return; | |
892 | REF_ASSERT_ISNT(i < 0); | |
893 | evp_pkey_free_it(x); | |
894 | CRYPTO_THREAD_lock_free(x->lock); | |
895 | #ifndef FIPS_MODE | |
896 | sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free); | |
897 | #endif | |
898 | OPENSSL_free(x); | |
899 | } | |
900 | ||
e683582b SL |
901 | int EVP_PKEY_size(const EVP_PKEY *pkey) |
902 | { | |
6508e858 RL |
903 | if (pkey != NULL) { |
904 | if (pkey->ameth == NULL) | |
905 | return pkey->cache.size; | |
906 | else if (pkey->ameth->pkey_size != NULL) | |
907 | return pkey->ameth->pkey_size(pkey); | |
908 | } | |
e683582b SL |
909 | return 0; |
910 | } | |
f6aa5774 RL |
911 | |
912 | void *evp_pkey_make_provided(EVP_PKEY *pk, OPENSSL_CTX *libctx, | |
b305452f | 913 | EVP_KEYMGMT **keymgmt, const char *propquery) |
f6aa5774 RL |
914 | { |
915 | EVP_KEYMGMT *allocated_keymgmt = NULL; | |
916 | EVP_KEYMGMT *tmp_keymgmt = NULL; | |
b305452f | 917 | void *keydata = NULL; |
f6aa5774 RL |
918 | |
919 | if (pk == NULL) | |
920 | return NULL; | |
921 | ||
922 | if (keymgmt != NULL) { | |
923 | tmp_keymgmt = *keymgmt; | |
924 | *keymgmt = NULL; | |
925 | } | |
926 | ||
927 | if (tmp_keymgmt == NULL) { | |
2ee4a50a | 928 | EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk, propquery); |
f6aa5774 RL |
929 | |
930 | if (ctx != NULL && ctx->keytype != NULL) | |
931 | tmp_keymgmt = allocated_keymgmt = | |
932 | EVP_KEYMGMT_fetch(ctx->libctx, ctx->keytype, propquery); | |
933 | EVP_PKEY_CTX_free(ctx); | |
934 | } | |
935 | ||
936 | if (tmp_keymgmt != NULL) | |
b305452f RL |
937 | keydata = |
938 | evp_keymgmt_util_export_to_provider(pk, tmp_keymgmt); | |
f6aa5774 RL |
939 | |
940 | /* | |
941 | * If nothing was exported, |tmp_keymgmt| might point at a freed | |
942 | * EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for | |
943 | * the caller either way in that case. | |
944 | */ | |
b305452f | 945 | if (keydata == NULL) |
f6aa5774 RL |
946 | tmp_keymgmt = NULL; |
947 | ||
948 | if (keymgmt != NULL) | |
949 | *keymgmt = tmp_keymgmt; | |
950 | ||
951 | EVP_KEYMGMT_free(allocated_keymgmt); | |
b305452f | 952 | return keydata; |
f6aa5774 | 953 | } |