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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 | ||
f41ac0ee P |
10 | /* |
11 | * DSA low level APIs are deprecated for public use, but still ok for | |
12 | * internal use. | |
13 | */ | |
14 | #include "internal/deprecated.h" | |
15 | ||
d02b48c6 | 16 | #include <stdio.h> |
b39fc560 | 17 | #include "internal/cryptlib.h" |
cd420b0b | 18 | #include "internal/refcount.h" |
4d94ae00 BM |
19 | #include <openssl/bn.h> |
20 | #include <openssl/err.h> | |
ec577822 BM |
21 | #include <openssl/objects.h> |
22 | #include <openssl/evp.h> | |
ec577822 | 23 | #include <openssl/x509.h> |
3c27208f RS |
24 | #include <openssl/rsa.h> |
25 | #include <openssl/dsa.h> | |
26 | #include <openssl/dh.h> | |
b3831fbb | 27 | #include <openssl/cmac.h> |
3c27208f | 28 | #include <openssl/engine.h> |
e74bd290 | 29 | #include <openssl/params.h> |
54c1711f | 30 | #include <openssl/serializer.h> |
e74bd290 | 31 | #include <openssl/core_names.h> |
01b8b3c7 | 32 | |
25f2138b DMSP |
33 | #include "crypto/asn1.h" |
34 | #include "crypto/evp.h" | |
e74bd290 | 35 | #include "internal/provider.h" |
f6aa5774 | 36 | #include "evp_local.h" |
18e377b4 | 37 | |
e683582b SL |
38 | static void evp_pkey_free_it(EVP_PKEY *key); |
39 | ||
40 | #ifndef FIPS_MODE | |
bb2297a4 | 41 | |
8900f3e3 | 42 | int EVP_PKEY_bits(const EVP_PKEY *pkey) |
0f113f3e | 43 | { |
6508e858 RL |
44 | if (pkey != NULL) { |
45 | if (pkey->ameth == NULL) | |
46 | return pkey->cache.bits; | |
47 | else if (pkey->ameth->pkey_bits) | |
48 | return pkey->ameth->pkey_bits(pkey); | |
49 | } | |
0f113f3e MC |
50 | return 0; |
51 | } | |
58964a49 | 52 | |
2514fa79 | 53 | int EVP_PKEY_security_bits(const EVP_PKEY *pkey) |
0f113f3e MC |
54 | { |
55 | if (pkey == NULL) | |
56 | return 0; | |
6508e858 RL |
57 | if (pkey->ameth == NULL) |
58 | return pkey->cache.security_bits; | |
59 | if (pkey->ameth->pkey_security_bits == NULL) | |
0f113f3e MC |
60 | return -2; |
61 | return pkey->ameth->pkey_security_bits(pkey); | |
62 | } | |
2514fa79 | 63 | |
6b691a5c | 64 | int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode) |
0f113f3e | 65 | { |
e683582b | 66 | # ifndef OPENSSL_NO_DSA |
0f113f3e MC |
67 | if (pkey->type == EVP_PKEY_DSA) { |
68 | int ret = pkey->save_parameters; | |
69 | ||
70 | if (mode >= 0) | |
71 | pkey->save_parameters = mode; | |
26a7d938 | 72 | return ret; |
0f113f3e | 73 | } |
e683582b SL |
74 | # endif |
75 | # ifndef OPENSSL_NO_EC | |
0f113f3e MC |
76 | if (pkey->type == EVP_PKEY_EC) { |
77 | int ret = pkey->save_parameters; | |
78 | ||
79 | if (mode >= 0) | |
80 | pkey->save_parameters = mode; | |
26a7d938 | 81 | return ret; |
0f113f3e | 82 | } |
e683582b | 83 | # endif |
26a7d938 | 84 | return 0; |
0f113f3e | 85 | } |
d02b48c6 | 86 | |
a8b72844 | 87 | int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) |
0f113f3e | 88 | { |
2986ecdc DSH |
89 | if (to->type == EVP_PKEY_NONE) { |
90 | if (EVP_PKEY_set_type(to, from->type) == 0) | |
91 | return 0; | |
92 | } else if (to->type != from->type) { | |
0f113f3e MC |
93 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_DIFFERENT_KEY_TYPES); |
94 | goto err; | |
95 | } | |
96 | ||
97 | if (EVP_PKEY_missing_parameters(from)) { | |
98 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_MISSING_PARAMETERS); | |
99 | goto err; | |
100 | } | |
f72f00d4 DSH |
101 | |
102 | if (!EVP_PKEY_missing_parameters(to)) { | |
103 | if (EVP_PKEY_cmp_parameters(to, from) == 1) | |
104 | return 1; | |
105 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_DIFFERENT_PARAMETERS); | |
106 | return 0; | |
107 | } | |
108 | ||
0f113f3e MC |
109 | if (from->ameth && from->ameth->param_copy) |
110 | return from->ameth->param_copy(to, from); | |
111 | err: | |
112 | return 0; | |
113 | } | |
d02b48c6 | 114 | |
af0f0f3e | 115 | int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey) |
0f113f3e | 116 | { |
ab5c77b4 | 117 | if (pkey != NULL && pkey->ameth && pkey->ameth->param_missing) |
0f113f3e MC |
118 | return pkey->ameth->param_missing(pkey); |
119 | return 0; | |
120 | } | |
d02b48c6 | 121 | |
af0f0f3e | 122 | int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) |
0f113f3e MC |
123 | { |
124 | if (a->type != b->type) | |
125 | return -1; | |
126 | if (a->ameth && a->ameth->param_cmp) | |
127 | return a->ameth->param_cmp(a, b); | |
128 | return -2; | |
129 | } | |
58964a49 | 130 | |
af0f0f3e | 131 | int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b) |
0f113f3e MC |
132 | { |
133 | if (a->type != b->type) | |
134 | return -1; | |
135 | ||
136 | if (a->ameth) { | |
137 | int ret; | |
138 | /* Compare parameters if the algorithm has them */ | |
139 | if (a->ameth->param_cmp) { | |
140 | ret = a->ameth->param_cmp(a, b); | |
141 | if (ret <= 0) | |
142 | return ret; | |
143 | } | |
144 | ||
145 | if (a->ameth->pub_cmp) | |
146 | return a->ameth->pub_cmp(a, b); | |
147 | } | |
148 | ||
149 | return -2; | |
150 | } | |
e6526fbf | 151 | |
2872dbe1 | 152 | |
0f113f3e MC |
153 | /* |
154 | * Setup a public key ASN1 method and ENGINE from a NID or a string. If pkey | |
155 | * is NULL just return 1 or 0 if the algorithm exists. | |
01b8b3c7 DSH |
156 | */ |
157 | ||
a08802ce MC |
158 | static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str, |
159 | int len) | |
0f113f3e MC |
160 | { |
161 | const EVP_PKEY_ASN1_METHOD *ameth; | |
a08802ce MC |
162 | ENGINE **eptr = (e == NULL) ? &e : NULL; |
163 | ||
0f113f3e MC |
164 | if (pkey) { |
165 | if (pkey->pkey.ptr) | |
e683582b | 166 | evp_pkey_free_it(pkey); |
0f113f3e MC |
167 | /* |
168 | * If key type matches and a method exists then this lookup has | |
169 | * succeeded once so just indicate success. | |
170 | */ | |
171 | if ((type == pkey->save_type) && pkey->ameth) | |
172 | return 1; | |
e683582b | 173 | # ifndef OPENSSL_NO_ENGINE |
d19b01ad | 174 | /* If we have ENGINEs release them */ |
7c96dbcd RS |
175 | ENGINE_finish(pkey->engine); |
176 | pkey->engine = NULL; | |
d19b01ad DSH |
177 | ENGINE_finish(pkey->pmeth_engine); |
178 | pkey->pmeth_engine = NULL; | |
e683582b | 179 | # endif |
0f113f3e MC |
180 | } |
181 | if (str) | |
a08802ce | 182 | ameth = EVP_PKEY_asn1_find_str(eptr, str, len); |
0f113f3e | 183 | else |
a08802ce | 184 | ameth = EVP_PKEY_asn1_find(eptr, type); |
e683582b | 185 | # ifndef OPENSSL_NO_ENGINE |
a08802ce | 186 | if (pkey == NULL && eptr != NULL) |
0f113f3e | 187 | ENGINE_finish(e); |
e683582b | 188 | # endif |
7c96dbcd | 189 | if (ameth == NULL) { |
0f113f3e MC |
190 | EVPerr(EVP_F_PKEY_SET_TYPE, EVP_R_UNSUPPORTED_ALGORITHM); |
191 | return 0; | |
192 | } | |
193 | if (pkey) { | |
194 | pkey->ameth = ameth; | |
195 | pkey->engine = e; | |
196 | ||
197 | pkey->type = pkey->ameth->pkey_id; | |
198 | pkey->save_type = type; | |
199 | } | |
200 | return 1; | |
201 | } | |
01b8b3c7 | 202 | |
f929439f MC |
203 | EVP_PKEY *EVP_PKEY_new_raw_private_key(int type, ENGINE *e, |
204 | const unsigned char *priv, | |
205 | size_t len) | |
a08802ce MC |
206 | { |
207 | EVP_PKEY *ret = EVP_PKEY_new(); | |
208 | ||
209 | if (ret == NULL | |
210 | || !pkey_set_type(ret, e, type, NULL, -1)) { | |
211 | /* EVPerr already called */ | |
212 | goto err; | |
213 | } | |
214 | ||
215 | if (ret->ameth->set_priv_key == NULL) { | |
f929439f | 216 | EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PRIVATE_KEY, |
a08802ce MC |
217 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
218 | goto err; | |
219 | } | |
220 | ||
221 | if (!ret->ameth->set_priv_key(ret, priv, len)) { | |
f929439f | 222 | EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PRIVATE_KEY, EVP_R_KEY_SETUP_FAILED); |
a08802ce MC |
223 | goto err; |
224 | } | |
225 | ||
226 | return ret; | |
227 | ||
228 | err: | |
229 | EVP_PKEY_free(ret); | |
230 | return NULL; | |
231 | } | |
232 | ||
f929439f MC |
233 | EVP_PKEY *EVP_PKEY_new_raw_public_key(int type, ENGINE *e, |
234 | const unsigned char *pub, | |
235 | size_t len) | |
a08802ce MC |
236 | { |
237 | EVP_PKEY *ret = EVP_PKEY_new(); | |
238 | ||
239 | if (ret == NULL | |
240 | || !pkey_set_type(ret, e, type, NULL, -1)) { | |
241 | /* EVPerr already called */ | |
242 | goto err; | |
243 | } | |
244 | ||
245 | if (ret->ameth->set_pub_key == NULL) { | |
f929439f | 246 | EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PUBLIC_KEY, |
a08802ce MC |
247 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
248 | goto err; | |
249 | } | |
250 | ||
251 | if (!ret->ameth->set_pub_key(ret, pub, len)) { | |
f929439f | 252 | EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PUBLIC_KEY, EVP_R_KEY_SETUP_FAILED); |
a08802ce MC |
253 | goto err; |
254 | } | |
255 | ||
256 | return ret; | |
257 | ||
258 | err: | |
259 | EVP_PKEY_free(ret); | |
260 | return NULL; | |
261 | } | |
262 | ||
0d124b0a MC |
263 | int EVP_PKEY_get_raw_private_key(const EVP_PKEY *pkey, unsigned char *priv, |
264 | size_t *len) | |
265 | { | |
266 | if (pkey->ameth->get_priv_key == NULL) { | |
267 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PRIVATE_KEY, | |
268 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
269 | return 0; | |
270 | } | |
271 | ||
272 | if (!pkey->ameth->get_priv_key(pkey, priv, len)) { | |
273 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PRIVATE_KEY, EVP_R_GET_RAW_KEY_FAILED); | |
274 | return 0; | |
275 | } | |
276 | ||
277 | return 1; | |
278 | } | |
279 | ||
280 | int EVP_PKEY_get_raw_public_key(const EVP_PKEY *pkey, unsigned char *pub, | |
281 | size_t *len) | |
282 | { | |
283 | if (pkey->ameth->get_pub_key == NULL) { | |
284 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY, | |
285 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
286 | return 0; | |
287 | } | |
288 | ||
289 | if (!pkey->ameth->get_pub_key(pkey, pub, len)) { | |
290 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY, EVP_R_GET_RAW_KEY_FAILED); | |
291 | return 0; | |
292 | } | |
293 | ||
294 | return 1; | |
295 | } | |
296 | ||
b3831fbb MC |
297 | EVP_PKEY *EVP_PKEY_new_CMAC_key(ENGINE *e, const unsigned char *priv, |
298 | size_t len, const EVP_CIPHER *cipher) | |
299 | { | |
e683582b SL |
300 | # ifndef OPENSSL_NO_CMAC |
301 | # ifndef OPENSSL_NO_ENGINE | |
9a7846df | 302 | const char *engine_id = e != NULL ? ENGINE_get_id(e) : NULL; |
e683582b | 303 | # endif |
e74bd290 RL |
304 | const char *cipher_name = EVP_CIPHER_name(cipher); |
305 | const OSSL_PROVIDER *prov = EVP_CIPHER_provider(cipher); | |
306 | OPENSSL_CTX *libctx = | |
307 | prov == NULL ? NULL : ossl_provider_library_context(prov); | |
b3831fbb | 308 | EVP_PKEY *ret = EVP_PKEY_new(); |
81ff9eeb | 309 | EVP_MAC *cmac = EVP_MAC_fetch(libctx, OSSL_MAC_NAME_CMAC, NULL); |
e74bd290 RL |
310 | EVP_MAC_CTX *cmctx = cmac != NULL ? EVP_MAC_CTX_new(cmac) : NULL; |
311 | OSSL_PARAM params[4]; | |
312 | size_t paramsn = 0; | |
b3831fbb MC |
313 | |
314 | if (ret == NULL | |
315 | || cmctx == NULL | |
316 | || !pkey_set_type(ret, e, EVP_PKEY_CMAC, NULL, -1)) { | |
317 | /* EVPerr already called */ | |
318 | goto err; | |
319 | } | |
320 | ||
e683582b | 321 | # ifndef OPENSSL_NO_ENGINE |
9a7846df | 322 | if (engine_id != NULL) |
e74bd290 | 323 | params[paramsn++] = |
69db3044 | 324 | OSSL_PARAM_construct_utf8_string("engine", (char *)engine_id, 0); |
e683582b | 325 | # endif |
3be06e0d | 326 | |
e74bd290 | 327 | params[paramsn++] = |
703170d4 | 328 | OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_CIPHER, |
7f588d20 | 329 | (char *)cipher_name, 0); |
e74bd290 RL |
330 | params[paramsn++] = |
331 | OSSL_PARAM_construct_octet_string(OSSL_MAC_PARAM_KEY, | |
332 | (char *)priv, len); | |
333 | params[paramsn] = OSSL_PARAM_construct_end(); | |
334 | ||
335 | if (!EVP_MAC_CTX_set_params(cmctx, params)) { | |
b3831fbb MC |
336 | EVPerr(EVP_F_EVP_PKEY_NEW_CMAC_KEY, EVP_R_KEY_SETUP_FAILED); |
337 | goto err; | |
338 | } | |
339 | ||
340 | ret->pkey.ptr = cmctx; | |
341 | return ret; | |
342 | ||
343 | err: | |
344 | EVP_PKEY_free(ret); | |
b8d77c9b | 345 | EVP_MAC_CTX_free(cmctx); |
e74bd290 | 346 | EVP_MAC_free(cmac); |
b3831fbb | 347 | return NULL; |
e683582b | 348 | # else |
df6d51e2 MC |
349 | EVPerr(EVP_F_EVP_PKEY_NEW_CMAC_KEY, |
350 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
351 | return NULL; | |
e683582b | 352 | # endif |
b3831fbb | 353 | } |
a08802ce | 354 | |
01b8b3c7 | 355 | int EVP_PKEY_set_type(EVP_PKEY *pkey, int type) |
0f113f3e | 356 | { |
a08802ce | 357 | return pkey_set_type(pkey, NULL, type, NULL, -1); |
0f113f3e | 358 | } |
01b8b3c7 DSH |
359 | |
360 | int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len) | |
0f113f3e | 361 | { |
a08802ce | 362 | return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, str, len); |
0f113f3e | 363 | } |
2f2e6b62 JL |
364 | |
365 | int EVP_PKEY_set_alias_type(EVP_PKEY *pkey, int type) | |
366 | { | |
367 | if (pkey->type == type) { | |
368 | return 1; /* it already is that type */ | |
369 | } | |
370 | ||
371 | /* | |
372 | * The application is requesting to alias this to a different pkey type, | |
373 | * but not one that resolves to the base type. | |
374 | */ | |
375 | if (EVP_PKEY_type(type) != EVP_PKEY_base_id(pkey)) { | |
376 | EVPerr(EVP_F_EVP_PKEY_SET_ALIAS_TYPE, EVP_R_UNSUPPORTED_ALGORITHM); | |
377 | return 0; | |
378 | } | |
379 | ||
380 | pkey->type = type; | |
381 | return 1; | |
382 | } | |
383 | ||
e683582b | 384 | # ifndef OPENSSL_NO_ENGINE |
d19b01ad DSH |
385 | int EVP_PKEY_set1_engine(EVP_PKEY *pkey, ENGINE *e) |
386 | { | |
387 | if (e != NULL) { | |
388 | if (!ENGINE_init(e)) { | |
389 | EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, ERR_R_ENGINE_LIB); | |
390 | return 0; | |
391 | } | |
392 | if (ENGINE_get_pkey_meth(e, pkey->type) == NULL) { | |
393 | ENGINE_finish(e); | |
394 | EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, EVP_R_UNSUPPORTED_ALGORITHM); | |
395 | return 0; | |
396 | } | |
397 | } | |
398 | ENGINE_finish(pkey->pmeth_engine); | |
399 | pkey->pmeth_engine = e; | |
400 | return 1; | |
401 | } | |
229f7b38 DB |
402 | |
403 | ENGINE *EVP_PKEY_get0_engine(const EVP_PKEY *pkey) | |
404 | { | |
405 | return pkey->engine; | |
406 | } | |
e683582b | 407 | # endif |
01b8b3c7 | 408 | int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) |
0f113f3e | 409 | { |
f4e4382c RL |
410 | int alias = type; |
411 | ||
ad5b71be | 412 | #ifndef OPENSSL_NO_EC |
f4e4382c RL |
413 | if (EVP_PKEY_type(type) == EVP_PKEY_EC) { |
414 | const EC_GROUP *group = EC_KEY_get0_group(key); | |
415 | ||
416 | if (group != NULL && EC_GROUP_get_curve_name(group) == NID_sm2) | |
417 | alias = EVP_PKEY_SM2; | |
418 | } | |
ad5b71be | 419 | #endif |
f4e4382c | 420 | |
e34c66c6 | 421 | if (pkey == NULL || !EVP_PKEY_set_type(pkey, type)) |
0f113f3e | 422 | return 0; |
f4e4382c RL |
423 | if (!EVP_PKEY_set_alias_type(pkey, alias)) |
424 | return 0; | |
0f113f3e MC |
425 | pkey->pkey.ptr = key; |
426 | return (key != NULL); | |
427 | } | |
d02b48c6 | 428 | |
3aeb9348 | 429 | void *EVP_PKEY_get0(const EVP_PKEY *pkey) |
0f113f3e MC |
430 | { |
431 | return pkey->pkey.ptr; | |
432 | } | |
db98bbc1 | 433 | |
ebad0b0b NM |
434 | const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len) |
435 | { | |
436 | ASN1_OCTET_STRING *os = NULL; | |
437 | if (pkey->type != EVP_PKEY_HMAC) { | |
438 | EVPerr(EVP_F_EVP_PKEY_GET0_HMAC, EVP_R_EXPECTING_AN_HMAC_KEY); | |
439 | return NULL; | |
440 | } | |
441 | os = EVP_PKEY_get0(pkey); | |
442 | *len = os->length; | |
443 | return os->data; | |
444 | } | |
445 | ||
e683582b | 446 | # ifndef OPENSSL_NO_POLY1305 |
52ad5b60 TS |
447 | const unsigned char *EVP_PKEY_get0_poly1305(const EVP_PKEY *pkey, size_t *len) |
448 | { | |
449 | ASN1_OCTET_STRING *os = NULL; | |
450 | if (pkey->type != EVP_PKEY_POLY1305) { | |
451 | EVPerr(EVP_F_EVP_PKEY_GET0_POLY1305, EVP_R_EXPECTING_A_POLY1305_KEY); | |
452 | return NULL; | |
453 | } | |
454 | os = EVP_PKEY_get0(pkey); | |
455 | *len = os->length; | |
456 | return os->data; | |
457 | } | |
e683582b | 458 | # endif |
52ad5b60 | 459 | |
e683582b | 460 | # ifndef OPENSSL_NO_SIPHASH |
3f5616d7 TS |
461 | const unsigned char *EVP_PKEY_get0_siphash(const EVP_PKEY *pkey, size_t *len) |
462 | { | |
463 | ASN1_OCTET_STRING *os = NULL; | |
464 | ||
465 | if (pkey->type != EVP_PKEY_SIPHASH) { | |
466 | EVPerr(EVP_F_EVP_PKEY_GET0_SIPHASH, EVP_R_EXPECTING_A_SIPHASH_KEY); | |
467 | return NULL; | |
468 | } | |
469 | os = EVP_PKEY_get0(pkey); | |
470 | *len = os->length; | |
471 | return os->data; | |
472 | } | |
e683582b | 473 | # endif |
3f5616d7 | 474 | |
e683582b | 475 | # ifndef OPENSSL_NO_RSA |
c7cb16a8 | 476 | int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) |
52664f50 | 477 | { |
0f113f3e MC |
478 | int ret = EVP_PKEY_assign_RSA(pkey, key); |
479 | if (ret) | |
480 | RSA_up_ref(key); | |
481 | return ret; | |
52664f50 DSH |
482 | } |
483 | ||
9fdcc21f | 484 | RSA *EVP_PKEY_get0_RSA(const EVP_PKEY *pkey) |
0f113f3e | 485 | { |
465a58b1 | 486 | if (pkey->type != EVP_PKEY_RSA && pkey->type != EVP_PKEY_RSA_PSS) { |
2872dbe1 | 487 | EVPerr(EVP_F_EVP_PKEY_GET0_RSA, EVP_R_EXPECTING_AN_RSA_KEY); |
0f113f3e MC |
488 | return NULL; |
489 | } | |
0f113f3e | 490 | return pkey->pkey.rsa; |
f769ce3e | 491 | } |
2872dbe1 DSH |
492 | |
493 | RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey) | |
494 | { | |
495 | RSA *ret = EVP_PKEY_get0_RSA(pkey); | |
496 | if (ret != NULL) | |
497 | RSA_up_ref(ret); | |
498 | return ret; | |
499 | } | |
e683582b | 500 | # endif |
f769ce3e | 501 | |
e683582b | 502 | # ifndef OPENSSL_NO_DSA |
c7cb16a8 | 503 | int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) |
52664f50 | 504 | { |
0f113f3e MC |
505 | int ret = EVP_PKEY_assign_DSA(pkey, key); |
506 | if (ret) | |
507 | DSA_up_ref(key); | |
508 | return ret; | |
52664f50 DSH |
509 | } |
510 | ||
9fdcc21f | 511 | DSA *EVP_PKEY_get0_DSA(const EVP_PKEY *pkey) |
0f113f3e MC |
512 | { |
513 | if (pkey->type != EVP_PKEY_DSA) { | |
2872dbe1 | 514 | EVPerr(EVP_F_EVP_PKEY_GET0_DSA, EVP_R_EXPECTING_A_DSA_KEY); |
0f113f3e MC |
515 | return NULL; |
516 | } | |
0f113f3e | 517 | return pkey->pkey.dsa; |
f769ce3e | 518 | } |
2872dbe1 DSH |
519 | |
520 | DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) | |
521 | { | |
522 | DSA *ret = EVP_PKEY_get0_DSA(pkey); | |
523 | if (ret != NULL) | |
524 | DSA_up_ref(ret); | |
525 | return ret; | |
526 | } | |
e683582b | 527 | # endif |
f769ce3e | 528 | |
e683582b | 529 | # ifndef OPENSSL_NO_EC |
4d94ae00 | 530 | |
14a7cfb3 | 531 | int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) |
4d94ae00 | 532 | { |
0f113f3e MC |
533 | int ret = EVP_PKEY_assign_EC_KEY(pkey, key); |
534 | if (ret) | |
535 | EC_KEY_up_ref(key); | |
536 | return ret; | |
4d94ae00 BM |
537 | } |
538 | ||
9fdcc21f | 539 | EC_KEY *EVP_PKEY_get0_EC_KEY(const EVP_PKEY *pkey) |
4d94ae00 | 540 | { |
f4e4382c | 541 | if (EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) { |
2872dbe1 | 542 | EVPerr(EVP_F_EVP_PKEY_GET0_EC_KEY, EVP_R_EXPECTING_A_EC_KEY); |
0f113f3e MC |
543 | return NULL; |
544 | } | |
0f113f3e | 545 | return pkey->pkey.ec; |
4d94ae00 | 546 | } |
2872dbe1 DSH |
547 | |
548 | EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) | |
549 | { | |
550 | EC_KEY *ret = EVP_PKEY_get0_EC_KEY(pkey); | |
551 | if (ret != NULL) | |
552 | EC_KEY_up_ref(ret); | |
553 | return ret; | |
554 | } | |
e683582b | 555 | # endif |
4d94ae00 | 556 | |
e683582b | 557 | # ifndef OPENSSL_NO_DH |
52664f50 | 558 | |
c7cb16a8 | 559 | int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) |
52664f50 | 560 | { |
32c869ff MC |
561 | int type = DH_get0_q(key) == NULL ? EVP_PKEY_DH : EVP_PKEY_DHX; |
562 | int ret = EVP_PKEY_assign(pkey, type, key); | |
563 | ||
0f113f3e MC |
564 | if (ret) |
565 | DH_up_ref(key); | |
566 | return ret; | |
52664f50 DSH |
567 | } |
568 | ||
9fdcc21f | 569 | DH *EVP_PKEY_get0_DH(const EVP_PKEY *pkey) |
0f113f3e MC |
570 | { |
571 | if (pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) { | |
2872dbe1 | 572 | EVPerr(EVP_F_EVP_PKEY_GET0_DH, EVP_R_EXPECTING_A_DH_KEY); |
0f113f3e MC |
573 | return NULL; |
574 | } | |
0f113f3e | 575 | return pkey->pkey.dh; |
f769ce3e | 576 | } |
2872dbe1 DSH |
577 | |
578 | DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) | |
579 | { | |
580 | DH *ret = EVP_PKEY_get0_DH(pkey); | |
581 | if (ret != NULL) | |
582 | DH_up_ref(ret); | |
583 | return ret; | |
584 | } | |
e683582b | 585 | # endif |
f769ce3e | 586 | |
6b691a5c | 587 | int EVP_PKEY_type(int type) |
0f113f3e MC |
588 | { |
589 | int ret; | |
590 | const EVP_PKEY_ASN1_METHOD *ameth; | |
591 | ENGINE *e; | |
592 | ameth = EVP_PKEY_asn1_find(&e, type); | |
593 | if (ameth) | |
594 | ret = ameth->pkey_id; | |
595 | else | |
596 | ret = NID_undef; | |
e683582b | 597 | # ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 598 | ENGINE_finish(e); |
e683582b | 599 | # endif |
0f113f3e MC |
600 | return ret; |
601 | } | |
d02b48c6 | 602 | |
7f57b076 | 603 | int EVP_PKEY_id(const EVP_PKEY *pkey) |
0f113f3e MC |
604 | { |
605 | return pkey->type; | |
606 | } | |
7f57b076 DSH |
607 | |
608 | int EVP_PKEY_base_id(const EVP_PKEY *pkey) | |
0f113f3e MC |
609 | { |
610 | return EVP_PKEY_type(pkey->type); | |
611 | } | |
7f57b076 | 612 | |
d02b48c6 | 613 | |
f1299839 RL |
614 | static int print_reset_indent(BIO **out, int pop_f_prefix, long saved_indent) |
615 | { | |
616 | BIO_set_indent(*out, saved_indent); | |
617 | if (pop_f_prefix) { | |
618 | BIO *next = BIO_pop(*out); | |
619 | ||
620 | BIO_free(*out); | |
621 | *out = next; | |
622 | } | |
623 | return 1; | |
624 | } | |
625 | ||
626 | static int print_set_indent(BIO **out, int *pop_f_prefix, long *saved_indent, | |
627 | long indent) | |
628 | { | |
629 | *pop_f_prefix = 0; | |
630 | *saved_indent = 0; | |
631 | if (indent > 0) { | |
632 | long i = BIO_get_indent(*out); | |
633 | ||
634 | *saved_indent = (i < 0 ? 0 : i); | |
635 | if (BIO_set_indent(*out, indent) <= 0) { | |
636 | if ((*out = BIO_push(BIO_new(BIO_f_prefix()), *out)) == NULL) | |
637 | return 0; | |
638 | *pop_f_prefix = 1; | |
639 | } | |
640 | if (BIO_set_indent(*out, indent) <= 0) { | |
641 | print_reset_indent(out, *pop_f_prefix, *saved_indent); | |
642 | return 0; | |
643 | } | |
644 | } | |
645 | return 1; | |
646 | } | |
647 | ||
35208f36 | 648 | static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent, |
0f113f3e MC |
649 | const char *kstr) |
650 | { | |
5310a4e6 P |
651 | return BIO_indent(out, indent, 128) |
652 | && BIO_printf(out, "%s algorithm \"%s\" unsupported\n", | |
653 | kstr, OBJ_nid2ln(pkey->type)) > 0; | |
0f113f3e | 654 | } |
35208f36 | 655 | |
f1299839 RL |
656 | static int print_pkey(const EVP_PKEY *pkey, BIO *out, int indent, |
657 | const char *propquery /* For provided serialization */, | |
658 | int (*legacy_print)(BIO *out, const EVP_PKEY *pkey, | |
659 | int indent, ASN1_PCTX *pctx), | |
660 | ASN1_PCTX *legacy_pctx /* For legacy print */) | |
0f113f3e | 661 | { |
f1299839 RL |
662 | int pop_f_prefix; |
663 | long saved_indent; | |
664 | OSSL_SERIALIZER_CTX *ctx = NULL; | |
665 | int ret = -2; /* default to unsupported */ | |
666 | ||
667 | if (!print_set_indent(&out, &pop_f_prefix, &saved_indent, indent)) | |
668 | return 0; | |
54c1711f | 669 | |
f1299839 | 670 | ctx = OSSL_SERIALIZER_CTX_new_by_EVP_PKEY(pkey, propquery); |
54c1711f RL |
671 | if (OSSL_SERIALIZER_CTX_get_serializer(ctx) != NULL) |
672 | ret = OSSL_SERIALIZER_to_bio(ctx, out); | |
673 | OSSL_SERIALIZER_CTX_free(ctx); | |
674 | ||
675 | if (ret != -2) | |
f1299839 | 676 | goto end; |
54c1711f RL |
677 | |
678 | /* legacy fallback */ | |
f1299839 RL |
679 | if (legacy_print != NULL) |
680 | ret = legacy_print(out, pkey, 0, legacy_pctx); | |
681 | else | |
682 | ret = unsup_alg(out, pkey, 0, "Public Key"); | |
0f113f3e | 683 | |
f1299839 RL |
684 | end: |
685 | print_reset_indent(&out, pop_f_prefix, saved_indent); | |
686 | return ret; | |
687 | } | |
688 | ||
689 | int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, | |
690 | int indent, ASN1_PCTX *pctx) | |
691 | { | |
692 | return print_pkey(pkey, out, indent, OSSL_SERIALIZER_PUBKEY_TO_TEXT_PQ, | |
693 | (pkey->ameth != NULL ? pkey->ameth->pub_print : NULL), | |
694 | pctx); | |
0f113f3e | 695 | } |
35208f36 DSH |
696 | |
697 | int EVP_PKEY_print_private(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_PrivateKey_TO_TEXT_PQ, |
701 | (pkey->ameth != NULL ? pkey->ameth->priv_print : NULL), | |
702 | pctx); | |
0f113f3e | 703 | } |
35208f36 DSH |
704 | |
705 | int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
706 | int indent, ASN1_PCTX *pctx) |
707 | { | |
f1299839 RL |
708 | return print_pkey(pkey, out, indent, OSSL_SERIALIZER_Parameters_TO_TEXT_PQ, |
709 | (pkey->ameth != NULL ? pkey->ameth->param_print : NULL), | |
710 | pctx); | |
0f113f3e | 711 | } |
03919683 | 712 | |
ead0d234 RL |
713 | static int legacy_asn1_ctrl_to_param(EVP_PKEY *pkey, int op, |
714 | int arg1, void *arg2) | |
715 | { | |
716 | if (pkey->pkeys[0].keymgmt == NULL) | |
717 | return 0; | |
718 | switch (op) { | |
719 | case ASN1_PKEY_CTRL_DEFAULT_MD_NID: | |
720 | { | |
721 | char mdname[80] = ""; | |
722 | int nid; | |
723 | int rv = EVP_PKEY_get_default_digest_name(pkey, mdname, | |
724 | sizeof(mdname)); | |
725 | ||
726 | if (rv <= 0) | |
727 | return rv; | |
728 | nid = OBJ_sn2nid(mdname); | |
729 | if (nid == NID_undef) | |
730 | nid = OBJ_ln2nid(mdname); | |
731 | if (nid == NID_undef) | |
732 | return 0; | |
733 | *(int *)arg2 = nid; | |
734 | return 1; | |
735 | } | |
736 | default: | |
737 | return -2; | |
738 | } | |
739 | } | |
740 | ||
5d6aaf8a | 741 | static int evp_pkey_asn1_ctrl(EVP_PKEY *pkey, int op, int arg1, void *arg2) |
0f113f3e | 742 | { |
ead0d234 RL |
743 | if (pkey->ameth == NULL) |
744 | return legacy_asn1_ctrl_to_param(pkey, op, arg1, arg2); | |
745 | if (pkey->ameth->pkey_ctrl == NULL) | |
0f113f3e | 746 | return -2; |
5d6aaf8a DSH |
747 | return pkey->ameth->pkey_ctrl(pkey, op, arg1, arg2); |
748 | } | |
749 | ||
750 | int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid) | |
751 | { | |
752 | return evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 0, pnid); | |
753 | } | |
754 | ||
ead0d234 RL |
755 | int EVP_PKEY_get_default_digest_name(EVP_PKEY *pkey, |
756 | char *mdname, size_t mdname_sz) | |
757 | { | |
758 | if (pkey->ameth == NULL) { | |
759 | OSSL_PARAM params[3]; | |
760 | char mddefault[100] = ""; | |
761 | char mdmandatory[100] = ""; | |
762 | ||
763 | params[0] = | |
764 | OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, | |
765 | mddefault, sizeof(mddefault)); | |
766 | params[1] = | |
767 | OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_MANDATORY_DIGEST, | |
768 | mdmandatory, | |
769 | sizeof(mdmandatory)); | |
770 | params[2] = OSSL_PARAM_construct_end(); | |
b305452f RL |
771 | if (!evp_keymgmt_get_params(pkey->pkeys[0].keymgmt, |
772 | pkey->pkeys[0].keydata, | |
773 | params)) | |
ead0d234 RL |
774 | return 0; |
775 | if (mdmandatory[0] != '\0') { | |
776 | OPENSSL_strlcpy(mdname, mdmandatory, mdname_sz); | |
777 | return 2; | |
778 | } | |
779 | OPENSSL_strlcpy(mdname, mddefault, mdname_sz); | |
780 | return 1; | |
781 | } | |
782 | ||
783 | { | |
784 | int nid = NID_undef; | |
785 | int rv = EVP_PKEY_get_default_digest_nid(pkey, &nid); | |
786 | const char *name = rv > 0 ? OBJ_nid2sn(nid) : NULL; | |
787 | ||
788 | if (rv > 0) | |
789 | OPENSSL_strlcpy(mdname, name, mdname_sz); | |
790 | return rv; | |
791 | } | |
792 | } | |
793 | ||
ecbb2fca DW |
794 | int EVP_PKEY_supports_digest_nid(EVP_PKEY *pkey, int nid) |
795 | { | |
796 | int rv, default_nid; | |
797 | ||
798 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SUPPORTS_MD_NID, nid, NULL); | |
799 | if (rv == -2) { | |
800 | /* | |
801 | * If there is a mandatory default digest and this isn't it, then | |
802 | * the answer is 'no'. | |
803 | */ | |
804 | rv = EVP_PKEY_get_default_digest_nid(pkey, &default_nid); | |
805 | if (rv == 2) | |
806 | return (nid == default_nid); | |
807 | /* zero is an error from EVP_PKEY_get_default_digest_nid() */ | |
808 | if (rv == 0) | |
809 | return -1; | |
810 | } | |
811 | return rv; | |
812 | } | |
813 | ||
5d6aaf8a DSH |
814 | int EVP_PKEY_set1_tls_encodedpoint(EVP_PKEY *pkey, |
815 | const unsigned char *pt, size_t ptlen) | |
816 | { | |
817 | if (ptlen > INT_MAX) | |
818 | return 0; | |
819 | if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, ptlen, | |
820 | (void *)pt) <= 0) | |
821 | return 0; | |
822 | return 1; | |
823 | } | |
824 | ||
825 | size_t EVP_PKEY_get1_tls_encodedpoint(EVP_PKEY *pkey, unsigned char **ppt) | |
826 | { | |
827 | int rv; | |
828 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppt); | |
829 | if (rv <= 0) | |
830 | return 0; | |
831 | return rv; | |
0f113f3e | 832 | } |
e683582b SL |
833 | |
834 | #endif /* FIPS_MODE */ | |
835 | ||
836 | /*- All methods below can also be used in FIPS_MODE */ | |
837 | ||
838 | EVP_PKEY *EVP_PKEY_new(void) | |
839 | { | |
840 | EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret)); | |
841 | ||
842 | if (ret == NULL) { | |
843 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
844 | return NULL; | |
845 | } | |
846 | ret->type = EVP_PKEY_NONE; | |
847 | ret->save_type = EVP_PKEY_NONE; | |
848 | ret->references = 1; | |
849 | ret->save_parameters = 1; | |
850 | ret->lock = CRYPTO_THREAD_lock_new(); | |
851 | if (ret->lock == NULL) { | |
852 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
853 | OPENSSL_free(ret); | |
854 | return NULL; | |
855 | } | |
856 | return ret; | |
857 | } | |
858 | ||
859 | int EVP_PKEY_up_ref(EVP_PKEY *pkey) | |
860 | { | |
861 | int i; | |
862 | ||
863 | if (CRYPTO_UP_REF(&pkey->references, &i, pkey->lock) <= 0) | |
864 | return 0; | |
865 | ||
866 | REF_PRINT_COUNT("EVP_PKEY", pkey); | |
867 | REF_ASSERT_ISNT(i < 2); | |
868 | return ((i > 1) ? 1 : 0); | |
869 | } | |
870 | ||
871 | static void evp_pkey_free_it(EVP_PKEY *x) | |
872 | { | |
873 | /* internal function; x is never NULL */ | |
874 | ||
68552cde | 875 | evp_keymgmt_util_clear_pkey_cache(x); |
e683582b SL |
876 | |
877 | if (x->ameth && x->ameth->pkey_free) { | |
878 | x->ameth->pkey_free(x); | |
879 | x->pkey.ptr = NULL; | |
880 | } | |
881 | #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE) | |
882 | ENGINE_finish(x->engine); | |
883 | x->engine = NULL; | |
884 | ENGINE_finish(x->pmeth_engine); | |
885 | x->pmeth_engine = NULL; | |
886 | #endif | |
887 | } | |
888 | ||
889 | void EVP_PKEY_free(EVP_PKEY *x) | |
890 | { | |
891 | int i; | |
892 | ||
893 | if (x == NULL) | |
894 | return; | |
895 | ||
896 | CRYPTO_DOWN_REF(&x->references, &i, x->lock); | |
897 | REF_PRINT_COUNT("EVP_PKEY", x); | |
898 | if (i > 0) | |
899 | return; | |
900 | REF_ASSERT_ISNT(i < 0); | |
901 | evp_pkey_free_it(x); | |
902 | CRYPTO_THREAD_lock_free(x->lock); | |
903 | #ifndef FIPS_MODE | |
904 | sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free); | |
905 | #endif | |
906 | OPENSSL_free(x); | |
907 | } | |
908 | ||
e683582b SL |
909 | int EVP_PKEY_size(const EVP_PKEY *pkey) |
910 | { | |
6508e858 RL |
911 | if (pkey != NULL) { |
912 | if (pkey->ameth == NULL) | |
913 | return pkey->cache.size; | |
914 | else if (pkey->ameth->pkey_size != NULL) | |
915 | return pkey->ameth->pkey_size(pkey); | |
916 | } | |
e683582b SL |
917 | return 0; |
918 | } | |
f6aa5774 RL |
919 | |
920 | void *evp_pkey_make_provided(EVP_PKEY *pk, OPENSSL_CTX *libctx, | |
b305452f | 921 | EVP_KEYMGMT **keymgmt, const char *propquery) |
f6aa5774 RL |
922 | { |
923 | EVP_KEYMGMT *allocated_keymgmt = NULL; | |
924 | EVP_KEYMGMT *tmp_keymgmt = NULL; | |
b305452f | 925 | void *keydata = NULL; |
f6aa5774 RL |
926 | |
927 | if (pk == NULL) | |
928 | return NULL; | |
929 | ||
930 | if (keymgmt != NULL) { | |
931 | tmp_keymgmt = *keymgmt; | |
932 | *keymgmt = NULL; | |
933 | } | |
934 | ||
3f7ce7f1 RL |
935 | #ifndef FIPS_MODE |
936 | /* | |
937 | * If there is an underlying legacy key and it has changed, invalidate | |
938 | * the cache of provider keys. | |
939 | */ | |
940 | if (pk->pkey.ptr != NULL) { | |
941 | EVP_KEYMGMT *legacy_keymgmt = NULL; | |
942 | ||
943 | /* | |
944 | * If there is no dirty counter, this key can't be used with | |
945 | * providers. | |
946 | */ | |
947 | if (pk->ameth->dirty_cnt == NULL) | |
948 | goto end; | |
949 | ||
950 | /* | |
951 | * If no keymgmt was given by the caller, we set it to the first | |
952 | * that's cached, to become the keymgmt to re-export to if needed, | |
953 | * or to have a token keymgmt to return on success. Further checks | |
954 | * are done further down. | |
955 | * | |
956 | * We need to carefully save the pointer somewhere other than in | |
957 | * tmp_keymgmt, so the EVP_KEYMGMT_up_ref() below doesn't mistakenly | |
958 | * increment the reference counter of a keymgmt given by the caller. | |
959 | */ | |
960 | if (tmp_keymgmt == NULL) | |
961 | legacy_keymgmt = pk->pkeys[0].keymgmt; | |
962 | ||
963 | /* | |
964 | * If the dirty counter changed since last time, we make sure to | |
965 | * hold on to the keymgmt we just got (if we got one), then clear | |
966 | * the cache. | |
967 | */ | |
968 | if (pk->ameth->dirty_cnt(pk) != pk->dirty_cnt_copy) { | |
969 | if (legacy_keymgmt != NULL && !EVP_KEYMGMT_up_ref(legacy_keymgmt)) | |
970 | goto end; | |
971 | evp_keymgmt_util_clear_pkey_cache(pk); | |
972 | } | |
973 | ||
974 | /* | |
975 | * |legacy_keymgmt| was only given a value if |tmp_keymgmt| is | |
976 | * NULL. | |
977 | */ | |
978 | if (legacy_keymgmt != NULL) | |
979 | tmp_keymgmt = legacy_keymgmt; | |
980 | } | |
981 | #endif | |
982 | ||
983 | /* If no keymgmt was given or found, get a default keymgmt */ | |
f6aa5774 | 984 | if (tmp_keymgmt == NULL) { |
2ee4a50a | 985 | EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk, propquery); |
f6aa5774 RL |
986 | |
987 | if (ctx != NULL && ctx->keytype != NULL) | |
988 | tmp_keymgmt = allocated_keymgmt = | |
989 | EVP_KEYMGMT_fetch(ctx->libctx, ctx->keytype, propquery); | |
990 | EVP_PKEY_CTX_free(ctx); | |
991 | } | |
992 | ||
3f7ce7f1 RL |
993 | if (tmp_keymgmt == NULL) |
994 | goto end; | |
f6aa5774 | 995 | |
3f7ce7f1 RL |
996 | #ifndef FIPS_MODE |
997 | if (pk->pkey.ptr != NULL) { | |
998 | size_t i; | |
999 | ||
1000 | /* | |
1001 | * Find our keymgmt in the cache. If it's present, it means that | |
1002 | * export has already been done. We take token copies of the | |
1003 | * cached pointers, to have token success values to return. | |
1004 | * | |
1005 | * TODO(3.0) Right now, we assume we have ample space. We will | |
1006 | * have to think about a cache aging scheme, though, if |i| indexes | |
1007 | * outside the array. | |
1008 | */ | |
1009 | i = evp_keymgmt_util_find_pkey_cache_index(pk, tmp_keymgmt); | |
1010 | if (!ossl_assert(i < OSSL_NELEM(pk->pkeys))) | |
1011 | goto end; | |
1012 | if (pk->pkeys[i].keymgmt != NULL) { | |
1013 | keydata = pk->pkeys[i].keydata; | |
1014 | goto end; | |
1015 | } | |
1016 | ||
1017 | /* | |
1018 | * If we still don't have a keymgmt at this point, or the legacy | |
1019 | * key doesn't have an export function, just bail out. | |
1020 | */ | |
1021 | if (pk->ameth->export_to == NULL) | |
1022 | goto end; | |
1023 | ||
1024 | /* Make sure that the keymgmt key type matches the legacy NID */ | |
1025 | if (!ossl_assert(EVP_KEYMGMT_is_a(tmp_keymgmt, OBJ_nid2sn(pk->type)))) | |
1026 | goto end; | |
1027 | ||
1028 | if ((keydata = evp_keymgmt_newdata(tmp_keymgmt)) == NULL) | |
1029 | goto end; | |
1030 | ||
1031 | if (!pk->ameth->export_to(pk, keydata, tmp_keymgmt)) { | |
1032 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1033 | keydata = NULL; | |
1034 | goto end; | |
1035 | } | |
1036 | ||
1037 | evp_keymgmt_util_cache_pkey(pk, i, tmp_keymgmt, keydata); | |
1038 | ||
1039 | /* Synchronize the dirty count */ | |
1040 | pk->dirty_cnt_copy = pk->ameth->dirty_cnt(pk); | |
1041 | goto end; | |
1042 | } | |
1043 | #endif /* FIPS_MODE */ | |
1044 | ||
1045 | keydata = evp_keymgmt_util_export_to_provider(pk, tmp_keymgmt); | |
1046 | ||
1047 | end: | |
f6aa5774 RL |
1048 | /* |
1049 | * If nothing was exported, |tmp_keymgmt| might point at a freed | |
1050 | * EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for | |
1051 | * the caller either way in that case. | |
1052 | */ | |
b305452f | 1053 | if (keydata == NULL) |
f6aa5774 RL |
1054 | tmp_keymgmt = NULL; |
1055 | ||
1056 | if (keymgmt != NULL) | |
1057 | *keymgmt = tmp_keymgmt; | |
1058 | ||
1059 | EVP_KEYMGMT_free(allocated_keymgmt); | |
b305452f | 1060 | return keydata; |
f6aa5774 | 1061 | } |