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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 | { |
e34c66c6 | 404 | if (pkey == NULL || !EVP_PKEY_set_type(pkey, type)) |
0f113f3e MC |
405 | return 0; |
406 | pkey->pkey.ptr = key; | |
407 | return (key != NULL); | |
408 | } | |
d02b48c6 | 409 | |
3aeb9348 | 410 | void *EVP_PKEY_get0(const EVP_PKEY *pkey) |
0f113f3e MC |
411 | { |
412 | return pkey->pkey.ptr; | |
413 | } | |
db98bbc1 | 414 | |
ebad0b0b NM |
415 | const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len) |
416 | { | |
417 | ASN1_OCTET_STRING *os = NULL; | |
418 | if (pkey->type != EVP_PKEY_HMAC) { | |
419 | EVPerr(EVP_F_EVP_PKEY_GET0_HMAC, EVP_R_EXPECTING_AN_HMAC_KEY); | |
420 | return NULL; | |
421 | } | |
422 | os = EVP_PKEY_get0(pkey); | |
423 | *len = os->length; | |
424 | return os->data; | |
425 | } | |
426 | ||
e683582b | 427 | # ifndef OPENSSL_NO_POLY1305 |
52ad5b60 TS |
428 | const unsigned char *EVP_PKEY_get0_poly1305(const EVP_PKEY *pkey, size_t *len) |
429 | { | |
430 | ASN1_OCTET_STRING *os = NULL; | |
431 | if (pkey->type != EVP_PKEY_POLY1305) { | |
432 | EVPerr(EVP_F_EVP_PKEY_GET0_POLY1305, EVP_R_EXPECTING_A_POLY1305_KEY); | |
433 | return NULL; | |
434 | } | |
435 | os = EVP_PKEY_get0(pkey); | |
436 | *len = os->length; | |
437 | return os->data; | |
438 | } | |
e683582b | 439 | # endif |
52ad5b60 | 440 | |
e683582b | 441 | # ifndef OPENSSL_NO_SIPHASH |
3f5616d7 TS |
442 | const unsigned char *EVP_PKEY_get0_siphash(const EVP_PKEY *pkey, size_t *len) |
443 | { | |
444 | ASN1_OCTET_STRING *os = NULL; | |
445 | ||
446 | if (pkey->type != EVP_PKEY_SIPHASH) { | |
447 | EVPerr(EVP_F_EVP_PKEY_GET0_SIPHASH, EVP_R_EXPECTING_A_SIPHASH_KEY); | |
448 | return NULL; | |
449 | } | |
450 | os = EVP_PKEY_get0(pkey); | |
451 | *len = os->length; | |
452 | return os->data; | |
453 | } | |
e683582b | 454 | # endif |
3f5616d7 | 455 | |
e683582b | 456 | # ifndef OPENSSL_NO_RSA |
c7cb16a8 | 457 | int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) |
52664f50 | 458 | { |
0f113f3e MC |
459 | int ret = EVP_PKEY_assign_RSA(pkey, key); |
460 | if (ret) | |
461 | RSA_up_ref(key); | |
462 | return ret; | |
52664f50 DSH |
463 | } |
464 | ||
9fdcc21f | 465 | RSA *EVP_PKEY_get0_RSA(const EVP_PKEY *pkey) |
0f113f3e | 466 | { |
465a58b1 | 467 | if (pkey->type != EVP_PKEY_RSA && pkey->type != EVP_PKEY_RSA_PSS) { |
2872dbe1 | 468 | EVPerr(EVP_F_EVP_PKEY_GET0_RSA, EVP_R_EXPECTING_AN_RSA_KEY); |
0f113f3e MC |
469 | return NULL; |
470 | } | |
0f113f3e | 471 | return pkey->pkey.rsa; |
f769ce3e | 472 | } |
2872dbe1 DSH |
473 | |
474 | RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey) | |
475 | { | |
476 | RSA *ret = EVP_PKEY_get0_RSA(pkey); | |
477 | if (ret != NULL) | |
478 | RSA_up_ref(ret); | |
479 | return ret; | |
480 | } | |
e683582b | 481 | # endif |
f769ce3e | 482 | |
e683582b | 483 | # ifndef OPENSSL_NO_DSA |
c7cb16a8 | 484 | int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) |
52664f50 | 485 | { |
0f113f3e MC |
486 | int ret = EVP_PKEY_assign_DSA(pkey, key); |
487 | if (ret) | |
488 | DSA_up_ref(key); | |
489 | return ret; | |
52664f50 DSH |
490 | } |
491 | ||
9fdcc21f | 492 | DSA *EVP_PKEY_get0_DSA(const EVP_PKEY *pkey) |
0f113f3e MC |
493 | { |
494 | if (pkey->type != EVP_PKEY_DSA) { | |
2872dbe1 | 495 | EVPerr(EVP_F_EVP_PKEY_GET0_DSA, EVP_R_EXPECTING_A_DSA_KEY); |
0f113f3e MC |
496 | return NULL; |
497 | } | |
0f113f3e | 498 | return pkey->pkey.dsa; |
f769ce3e | 499 | } |
2872dbe1 DSH |
500 | |
501 | DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) | |
502 | { | |
503 | DSA *ret = EVP_PKEY_get0_DSA(pkey); | |
504 | if (ret != NULL) | |
505 | DSA_up_ref(ret); | |
506 | return ret; | |
507 | } | |
e683582b | 508 | # endif |
f769ce3e | 509 | |
e683582b | 510 | # ifndef OPENSSL_NO_EC |
4d94ae00 | 511 | |
14a7cfb3 | 512 | int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) |
4d94ae00 | 513 | { |
0f113f3e MC |
514 | int ret = EVP_PKEY_assign_EC_KEY(pkey, key); |
515 | if (ret) | |
516 | EC_KEY_up_ref(key); | |
517 | return ret; | |
4d94ae00 BM |
518 | } |
519 | ||
9fdcc21f | 520 | EC_KEY *EVP_PKEY_get0_EC_KEY(const EVP_PKEY *pkey) |
4d94ae00 | 521 | { |
0f113f3e | 522 | if (pkey->type != EVP_PKEY_EC) { |
2872dbe1 | 523 | EVPerr(EVP_F_EVP_PKEY_GET0_EC_KEY, EVP_R_EXPECTING_A_EC_KEY); |
0f113f3e MC |
524 | return NULL; |
525 | } | |
0f113f3e | 526 | return pkey->pkey.ec; |
4d94ae00 | 527 | } |
2872dbe1 DSH |
528 | |
529 | EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) | |
530 | { | |
531 | EC_KEY *ret = EVP_PKEY_get0_EC_KEY(pkey); | |
532 | if (ret != NULL) | |
533 | EC_KEY_up_ref(ret); | |
534 | return ret; | |
535 | } | |
e683582b | 536 | # endif |
4d94ae00 | 537 | |
e683582b | 538 | # ifndef OPENSSL_NO_DH |
52664f50 | 539 | |
c7cb16a8 | 540 | int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) |
52664f50 | 541 | { |
32c869ff MC |
542 | int type = DH_get0_q(key) == NULL ? EVP_PKEY_DH : EVP_PKEY_DHX; |
543 | int ret = EVP_PKEY_assign(pkey, type, key); | |
544 | ||
0f113f3e MC |
545 | if (ret) |
546 | DH_up_ref(key); | |
547 | return ret; | |
52664f50 DSH |
548 | } |
549 | ||
9fdcc21f | 550 | DH *EVP_PKEY_get0_DH(const EVP_PKEY *pkey) |
0f113f3e MC |
551 | { |
552 | if (pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) { | |
2872dbe1 | 553 | EVPerr(EVP_F_EVP_PKEY_GET0_DH, EVP_R_EXPECTING_A_DH_KEY); |
0f113f3e MC |
554 | return NULL; |
555 | } | |
0f113f3e | 556 | return pkey->pkey.dh; |
f769ce3e | 557 | } |
2872dbe1 DSH |
558 | |
559 | DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) | |
560 | { | |
561 | DH *ret = EVP_PKEY_get0_DH(pkey); | |
562 | if (ret != NULL) | |
563 | DH_up_ref(ret); | |
564 | return ret; | |
565 | } | |
e683582b | 566 | # endif |
f769ce3e | 567 | |
6b691a5c | 568 | int EVP_PKEY_type(int type) |
0f113f3e MC |
569 | { |
570 | int ret; | |
571 | const EVP_PKEY_ASN1_METHOD *ameth; | |
572 | ENGINE *e; | |
573 | ameth = EVP_PKEY_asn1_find(&e, type); | |
574 | if (ameth) | |
575 | ret = ameth->pkey_id; | |
576 | else | |
577 | ret = NID_undef; | |
e683582b | 578 | # ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 579 | ENGINE_finish(e); |
e683582b | 580 | # endif |
0f113f3e MC |
581 | return ret; |
582 | } | |
d02b48c6 | 583 | |
7f57b076 | 584 | int EVP_PKEY_id(const EVP_PKEY *pkey) |
0f113f3e MC |
585 | { |
586 | return pkey->type; | |
587 | } | |
7f57b076 DSH |
588 | |
589 | int EVP_PKEY_base_id(const EVP_PKEY *pkey) | |
0f113f3e MC |
590 | { |
591 | return EVP_PKEY_type(pkey->type); | |
592 | } | |
7f57b076 | 593 | |
d02b48c6 | 594 | |
f1299839 RL |
595 | static int print_reset_indent(BIO **out, int pop_f_prefix, long saved_indent) |
596 | { | |
597 | BIO_set_indent(*out, saved_indent); | |
598 | if (pop_f_prefix) { | |
599 | BIO *next = BIO_pop(*out); | |
600 | ||
601 | BIO_free(*out); | |
602 | *out = next; | |
603 | } | |
604 | return 1; | |
605 | } | |
606 | ||
607 | static int print_set_indent(BIO **out, int *pop_f_prefix, long *saved_indent, | |
608 | long indent) | |
609 | { | |
610 | *pop_f_prefix = 0; | |
611 | *saved_indent = 0; | |
612 | if (indent > 0) { | |
613 | long i = BIO_get_indent(*out); | |
614 | ||
615 | *saved_indent = (i < 0 ? 0 : i); | |
616 | if (BIO_set_indent(*out, indent) <= 0) { | |
617 | if ((*out = BIO_push(BIO_new(BIO_f_prefix()), *out)) == NULL) | |
618 | return 0; | |
619 | *pop_f_prefix = 1; | |
620 | } | |
621 | if (BIO_set_indent(*out, indent) <= 0) { | |
622 | print_reset_indent(out, *pop_f_prefix, *saved_indent); | |
623 | return 0; | |
624 | } | |
625 | } | |
626 | return 1; | |
627 | } | |
628 | ||
35208f36 | 629 | static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent, |
0f113f3e MC |
630 | const char *kstr) |
631 | { | |
5310a4e6 P |
632 | return BIO_indent(out, indent, 128) |
633 | && BIO_printf(out, "%s algorithm \"%s\" unsupported\n", | |
634 | kstr, OBJ_nid2ln(pkey->type)) > 0; | |
0f113f3e | 635 | } |
35208f36 | 636 | |
f1299839 RL |
637 | static int print_pkey(const EVP_PKEY *pkey, BIO *out, int indent, |
638 | const char *propquery /* For provided serialization */, | |
639 | int (*legacy_print)(BIO *out, const EVP_PKEY *pkey, | |
640 | int indent, ASN1_PCTX *pctx), | |
641 | ASN1_PCTX *legacy_pctx /* For legacy print */) | |
0f113f3e | 642 | { |
f1299839 RL |
643 | int pop_f_prefix; |
644 | long saved_indent; | |
645 | OSSL_SERIALIZER_CTX *ctx = NULL; | |
646 | int ret = -2; /* default to unsupported */ | |
647 | ||
648 | if (!print_set_indent(&out, &pop_f_prefix, &saved_indent, indent)) | |
649 | return 0; | |
54c1711f | 650 | |
f1299839 | 651 | ctx = OSSL_SERIALIZER_CTX_new_by_EVP_PKEY(pkey, propquery); |
54c1711f RL |
652 | if (OSSL_SERIALIZER_CTX_get_serializer(ctx) != NULL) |
653 | ret = OSSL_SERIALIZER_to_bio(ctx, out); | |
654 | OSSL_SERIALIZER_CTX_free(ctx); | |
655 | ||
656 | if (ret != -2) | |
f1299839 | 657 | goto end; |
54c1711f RL |
658 | |
659 | /* legacy fallback */ | |
f1299839 RL |
660 | if (legacy_print != NULL) |
661 | ret = legacy_print(out, pkey, 0, legacy_pctx); | |
662 | else | |
663 | ret = unsup_alg(out, pkey, 0, "Public Key"); | |
0f113f3e | 664 | |
f1299839 RL |
665 | end: |
666 | print_reset_indent(&out, pop_f_prefix, saved_indent); | |
667 | return ret; | |
668 | } | |
669 | ||
670 | int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, | |
671 | int indent, ASN1_PCTX *pctx) | |
672 | { | |
673 | return print_pkey(pkey, out, indent, OSSL_SERIALIZER_PUBKEY_TO_TEXT_PQ, | |
674 | (pkey->ameth != NULL ? pkey->ameth->pub_print : NULL), | |
675 | pctx); | |
0f113f3e | 676 | } |
35208f36 DSH |
677 | |
678 | int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
679 | int indent, ASN1_PCTX *pctx) |
680 | { | |
f1299839 RL |
681 | return print_pkey(pkey, out, indent, OSSL_SERIALIZER_PrivateKey_TO_TEXT_PQ, |
682 | (pkey->ameth != NULL ? pkey->ameth->priv_print : NULL), | |
683 | pctx); | |
0f113f3e | 684 | } |
35208f36 DSH |
685 | |
686 | int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
687 | int indent, ASN1_PCTX *pctx) |
688 | { | |
f1299839 RL |
689 | return print_pkey(pkey, out, indent, OSSL_SERIALIZER_Parameters_TO_TEXT_PQ, |
690 | (pkey->ameth != NULL ? pkey->ameth->param_print : NULL), | |
691 | pctx); | |
0f113f3e | 692 | } |
03919683 | 693 | |
5d6aaf8a | 694 | static int evp_pkey_asn1_ctrl(EVP_PKEY *pkey, int op, int arg1, void *arg2) |
0f113f3e | 695 | { |
5d6aaf8a | 696 | if (pkey->ameth == NULL || pkey->ameth->pkey_ctrl == NULL) |
0f113f3e | 697 | return -2; |
5d6aaf8a DSH |
698 | return pkey->ameth->pkey_ctrl(pkey, op, arg1, arg2); |
699 | } | |
700 | ||
701 | int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid) | |
702 | { | |
703 | return evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 0, pnid); | |
704 | } | |
705 | ||
ecbb2fca DW |
706 | int EVP_PKEY_supports_digest_nid(EVP_PKEY *pkey, int nid) |
707 | { | |
708 | int rv, default_nid; | |
709 | ||
710 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SUPPORTS_MD_NID, nid, NULL); | |
711 | if (rv == -2) { | |
712 | /* | |
713 | * If there is a mandatory default digest and this isn't it, then | |
714 | * the answer is 'no'. | |
715 | */ | |
716 | rv = EVP_PKEY_get_default_digest_nid(pkey, &default_nid); | |
717 | if (rv == 2) | |
718 | return (nid == default_nid); | |
719 | /* zero is an error from EVP_PKEY_get_default_digest_nid() */ | |
720 | if (rv == 0) | |
721 | return -1; | |
722 | } | |
723 | return rv; | |
724 | } | |
725 | ||
5d6aaf8a DSH |
726 | int EVP_PKEY_set1_tls_encodedpoint(EVP_PKEY *pkey, |
727 | const unsigned char *pt, size_t ptlen) | |
728 | { | |
729 | if (ptlen > INT_MAX) | |
730 | return 0; | |
731 | if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, ptlen, | |
732 | (void *)pt) <= 0) | |
733 | return 0; | |
734 | return 1; | |
735 | } | |
736 | ||
737 | size_t EVP_PKEY_get1_tls_encodedpoint(EVP_PKEY *pkey, unsigned char **ppt) | |
738 | { | |
739 | int rv; | |
740 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppt); | |
741 | if (rv <= 0) | |
742 | return 0; | |
743 | return rv; | |
0f113f3e | 744 | } |
e683582b SL |
745 | |
746 | #endif /* FIPS_MODE */ | |
747 | ||
748 | /*- All methods below can also be used in FIPS_MODE */ | |
749 | ||
750 | EVP_PKEY *EVP_PKEY_new(void) | |
751 | { | |
752 | EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret)); | |
753 | ||
754 | if (ret == NULL) { | |
755 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
756 | return NULL; | |
757 | } | |
758 | ret->type = EVP_PKEY_NONE; | |
759 | ret->save_type = EVP_PKEY_NONE; | |
760 | ret->references = 1; | |
761 | ret->save_parameters = 1; | |
762 | ret->lock = CRYPTO_THREAD_lock_new(); | |
763 | if (ret->lock == NULL) { | |
764 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
765 | OPENSSL_free(ret); | |
766 | return NULL; | |
767 | } | |
768 | return ret; | |
769 | } | |
770 | ||
771 | int EVP_PKEY_up_ref(EVP_PKEY *pkey) | |
772 | { | |
773 | int i; | |
774 | ||
775 | if (CRYPTO_UP_REF(&pkey->references, &i, pkey->lock) <= 0) | |
776 | return 0; | |
777 | ||
778 | REF_PRINT_COUNT("EVP_PKEY", pkey); | |
779 | REF_ASSERT_ISNT(i < 2); | |
780 | return ((i > 1) ? 1 : 0); | |
781 | } | |
782 | ||
783 | static void evp_pkey_free_it(EVP_PKEY *x) | |
784 | { | |
785 | /* internal function; x is never NULL */ | |
786 | ||
787 | evp_keymgmt_clear_pkey_cache(x); | |
788 | ||
789 | if (x->ameth && x->ameth->pkey_free) { | |
790 | x->ameth->pkey_free(x); | |
791 | x->pkey.ptr = NULL; | |
792 | } | |
793 | #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE) | |
794 | ENGINE_finish(x->engine); | |
795 | x->engine = NULL; | |
796 | ENGINE_finish(x->pmeth_engine); | |
797 | x->pmeth_engine = NULL; | |
798 | #endif | |
799 | } | |
800 | ||
801 | void EVP_PKEY_free(EVP_PKEY *x) | |
802 | { | |
803 | int i; | |
804 | ||
805 | if (x == NULL) | |
806 | return; | |
807 | ||
808 | CRYPTO_DOWN_REF(&x->references, &i, x->lock); | |
809 | REF_PRINT_COUNT("EVP_PKEY", x); | |
810 | if (i > 0) | |
811 | return; | |
812 | REF_ASSERT_ISNT(i < 0); | |
813 | evp_pkey_free_it(x); | |
814 | CRYPTO_THREAD_lock_free(x->lock); | |
815 | #ifndef FIPS_MODE | |
816 | sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free); | |
817 | #endif | |
818 | OPENSSL_free(x); | |
819 | } | |
820 | ||
e683582b SL |
821 | int EVP_PKEY_size(const EVP_PKEY *pkey) |
822 | { | |
6508e858 RL |
823 | if (pkey != NULL) { |
824 | if (pkey->ameth == NULL) | |
825 | return pkey->cache.size; | |
826 | else if (pkey->ameth->pkey_size != NULL) | |
827 | return pkey->ameth->pkey_size(pkey); | |
828 | } | |
e683582b SL |
829 | return 0; |
830 | } | |
f6aa5774 RL |
831 | |
832 | void *evp_pkey_make_provided(EVP_PKEY *pk, OPENSSL_CTX *libctx, | |
833 | EVP_KEYMGMT **keymgmt, const char *propquery, | |
834 | int domainparams) | |
835 | { | |
836 | EVP_KEYMGMT *allocated_keymgmt = NULL; | |
837 | EVP_KEYMGMT *tmp_keymgmt = NULL; | |
838 | void *provdata = NULL; | |
839 | ||
840 | if (pk == NULL) | |
841 | return NULL; | |
842 | ||
843 | if (keymgmt != NULL) { | |
844 | tmp_keymgmt = *keymgmt; | |
845 | *keymgmt = NULL; | |
846 | } | |
847 | ||
848 | if (tmp_keymgmt == NULL) { | |
849 | EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk); | |
850 | ||
851 | if (ctx != NULL && ctx->keytype != NULL) | |
852 | tmp_keymgmt = allocated_keymgmt = | |
853 | EVP_KEYMGMT_fetch(ctx->libctx, ctx->keytype, propquery); | |
854 | EVP_PKEY_CTX_free(ctx); | |
855 | } | |
856 | ||
857 | if (tmp_keymgmt != NULL) | |
858 | provdata = | |
859 | evp_keymgmt_export_to_provider(pk, tmp_keymgmt, domainparams); | |
860 | ||
861 | /* | |
862 | * If nothing was exported, |tmp_keymgmt| might point at a freed | |
863 | * EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for | |
864 | * the caller either way in that case. | |
865 | */ | |
866 | if (provdata == NULL) | |
867 | tmp_keymgmt = NULL; | |
868 | ||
869 | if (keymgmt != NULL) | |
870 | *keymgmt = tmp_keymgmt; | |
871 | ||
872 | EVP_KEYMGMT_free(allocated_keymgmt); | |
873 | return provdata; | |
874 | } |