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1 | /* | |
2 | * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use | |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
8 | */ | |
9 | ||
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 | ||
16 | #include <stdio.h> | |
17 | #include "internal/cryptlib.h" | |
18 | #include "internal/refcount.h" | |
19 | #include <openssl/bn.h> | |
20 | #include <openssl/err.h> | |
21 | #include <openssl/objects.h> | |
22 | #include <openssl/evp.h> | |
23 | #include <openssl/x509.h> | |
24 | #include <openssl/rsa.h> | |
25 | #include <openssl/dsa.h> | |
26 | #include <openssl/dh.h> | |
27 | #include <openssl/cmac.h> | |
28 | #include <openssl/engine.h> | |
29 | #include <openssl/params.h> | |
30 | #include <openssl/serializer.h> | |
31 | #include <openssl/core_names.h> | |
32 | ||
33 | #include "crypto/asn1.h" | |
34 | #include "crypto/evp.h" | |
35 | #include "internal/provider.h" | |
36 | #include "evp_local.h" | |
37 | ||
38 | static void evp_pkey_free_it(EVP_PKEY *key); | |
39 | ||
40 | #ifndef FIPS_MODE | |
41 | ||
42 | int EVP_PKEY_bits(const EVP_PKEY *pkey) | |
43 | { | |
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 | } | |
50 | return 0; | |
51 | } | |
52 | ||
53 | int EVP_PKEY_security_bits(const EVP_PKEY *pkey) | |
54 | { | |
55 | if (pkey == NULL) | |
56 | return 0; | |
57 | if (pkey->ameth == NULL) | |
58 | return pkey->cache.security_bits; | |
59 | if (pkey->ameth->pkey_security_bits == NULL) | |
60 | return -2; | |
61 | return pkey->ameth->pkey_security_bits(pkey); | |
62 | } | |
63 | ||
64 | int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode) | |
65 | { | |
66 | # ifndef OPENSSL_NO_DSA | |
67 | if (pkey->type == EVP_PKEY_DSA) { | |
68 | int ret = pkey->save_parameters; | |
69 | ||
70 | if (mode >= 0) | |
71 | pkey->save_parameters = mode; | |
72 | return ret; | |
73 | } | |
74 | # endif | |
75 | # ifndef OPENSSL_NO_EC | |
76 | if (pkey->type == EVP_PKEY_EC) { | |
77 | int ret = pkey->save_parameters; | |
78 | ||
79 | if (mode >= 0) | |
80 | pkey->save_parameters = mode; | |
81 | return ret; | |
82 | } | |
83 | # endif | |
84 | return 0; | |
85 | } | |
86 | ||
87 | int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) | |
88 | { | |
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) { | |
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 | } | |
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 | ||
109 | if (from->ameth && from->ameth->param_copy) | |
110 | return from->ameth->param_copy(to, from); | |
111 | err: | |
112 | return 0; | |
113 | } | |
114 | ||
115 | int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey) | |
116 | { | |
117 | if (pkey != NULL) { | |
118 | if (pkey->keymgmt != NULL) | |
119 | return !evp_keymgmt_util_has((EVP_PKEY *)pkey, | |
120 | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS); | |
121 | else if (pkey->ameth != NULL && pkey->ameth->param_missing != NULL) | |
122 | return pkey->ameth->param_missing(pkey); | |
123 | } | |
124 | return 0; | |
125 | } | |
126 | ||
127 | int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) | |
128 | { | |
129 | if (a->type != b->type) | |
130 | return -1; | |
131 | if (a->ameth && a->ameth->param_cmp) | |
132 | return a->ameth->param_cmp(a, b); | |
133 | return -2; | |
134 | } | |
135 | ||
136 | int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b) | |
137 | { | |
138 | if (a->type != b->type) | |
139 | return -1; | |
140 | ||
141 | if (a->ameth) { | |
142 | int ret; | |
143 | /* Compare parameters if the algorithm has them */ | |
144 | if (a->ameth->param_cmp) { | |
145 | ret = a->ameth->param_cmp(a, b); | |
146 | if (ret <= 0) | |
147 | return ret; | |
148 | } | |
149 | ||
150 | if (a->ameth->pub_cmp) | |
151 | return a->ameth->pub_cmp(a, b); | |
152 | } | |
153 | ||
154 | return -2; | |
155 | } | |
156 | ||
157 | ||
158 | /* | |
159 | * Setup a public key ASN1 method and ENGINE from a NID or a string. If pkey | |
160 | * is NULL just return 1 or 0 if the algorithm exists. | |
161 | */ | |
162 | ||
163 | static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str, | |
164 | int len) | |
165 | { | |
166 | const EVP_PKEY_ASN1_METHOD *ameth; | |
167 | ENGINE **eptr = (e == NULL) ? &e : NULL; | |
168 | ||
169 | if (pkey) { | |
170 | if (pkey->pkey.ptr) | |
171 | evp_pkey_free_it(pkey); | |
172 | /* | |
173 | * If key type matches and a method exists then this lookup has | |
174 | * succeeded once so just indicate success. | |
175 | */ | |
176 | if ((type == pkey->save_type) && pkey->ameth) | |
177 | return 1; | |
178 | # ifndef OPENSSL_NO_ENGINE | |
179 | /* If we have ENGINEs release them */ | |
180 | ENGINE_finish(pkey->engine); | |
181 | pkey->engine = NULL; | |
182 | ENGINE_finish(pkey->pmeth_engine); | |
183 | pkey->pmeth_engine = NULL; | |
184 | # endif | |
185 | } | |
186 | if (str) | |
187 | ameth = EVP_PKEY_asn1_find_str(eptr, str, len); | |
188 | else | |
189 | ameth = EVP_PKEY_asn1_find(eptr, type); | |
190 | # ifndef OPENSSL_NO_ENGINE | |
191 | if (pkey == NULL && eptr != NULL) | |
192 | ENGINE_finish(e); | |
193 | # endif | |
194 | if (ameth == NULL) { | |
195 | EVPerr(EVP_F_PKEY_SET_TYPE, EVP_R_UNSUPPORTED_ALGORITHM); | |
196 | return 0; | |
197 | } | |
198 | if (pkey) { | |
199 | pkey->ameth = ameth; | |
200 | pkey->engine = e; | |
201 | ||
202 | pkey->type = pkey->ameth->pkey_id; | |
203 | pkey->save_type = type; | |
204 | } | |
205 | return 1; | |
206 | } | |
207 | ||
208 | EVP_PKEY *EVP_PKEY_new_raw_private_key(int type, ENGINE *e, | |
209 | const unsigned char *priv, | |
210 | size_t len) | |
211 | { | |
212 | EVP_PKEY *ret = EVP_PKEY_new(); | |
213 | ||
214 | if (ret == NULL | |
215 | || !pkey_set_type(ret, e, type, NULL, -1)) { | |
216 | /* EVPerr already called */ | |
217 | goto err; | |
218 | } | |
219 | ||
220 | if (ret->ameth->set_priv_key == NULL) { | |
221 | EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PRIVATE_KEY, | |
222 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
223 | goto err; | |
224 | } | |
225 | ||
226 | if (!ret->ameth->set_priv_key(ret, priv, len)) { | |
227 | EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PRIVATE_KEY, EVP_R_KEY_SETUP_FAILED); | |
228 | goto err; | |
229 | } | |
230 | ||
231 | return ret; | |
232 | ||
233 | err: | |
234 | EVP_PKEY_free(ret); | |
235 | return NULL; | |
236 | } | |
237 | ||
238 | EVP_PKEY *EVP_PKEY_new_raw_public_key(int type, ENGINE *e, | |
239 | const unsigned char *pub, | |
240 | size_t len) | |
241 | { | |
242 | EVP_PKEY *ret = EVP_PKEY_new(); | |
243 | ||
244 | if (ret == NULL | |
245 | || !pkey_set_type(ret, e, type, NULL, -1)) { | |
246 | /* EVPerr already called */ | |
247 | goto err; | |
248 | } | |
249 | ||
250 | if (ret->ameth->set_pub_key == NULL) { | |
251 | EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PUBLIC_KEY, | |
252 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
253 | goto err; | |
254 | } | |
255 | ||
256 | if (!ret->ameth->set_pub_key(ret, pub, len)) { | |
257 | EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PUBLIC_KEY, EVP_R_KEY_SETUP_FAILED); | |
258 | goto err; | |
259 | } | |
260 | ||
261 | return ret; | |
262 | ||
263 | err: | |
264 | EVP_PKEY_free(ret); | |
265 | return NULL; | |
266 | } | |
267 | ||
268 | int EVP_PKEY_get_raw_private_key(const EVP_PKEY *pkey, unsigned char *priv, | |
269 | size_t *len) | |
270 | { | |
271 | if (pkey->ameth->get_priv_key == NULL) { | |
272 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PRIVATE_KEY, | |
273 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
274 | return 0; | |
275 | } | |
276 | ||
277 | if (!pkey->ameth->get_priv_key(pkey, priv, len)) { | |
278 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PRIVATE_KEY, EVP_R_GET_RAW_KEY_FAILED); | |
279 | return 0; | |
280 | } | |
281 | ||
282 | return 1; | |
283 | } | |
284 | ||
285 | int EVP_PKEY_get_raw_public_key(const EVP_PKEY *pkey, unsigned char *pub, | |
286 | size_t *len) | |
287 | { | |
288 | if (pkey->ameth->get_pub_key == NULL) { | |
289 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY, | |
290 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
291 | return 0; | |
292 | } | |
293 | ||
294 | if (!pkey->ameth->get_pub_key(pkey, pub, len)) { | |
295 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY, EVP_R_GET_RAW_KEY_FAILED); | |
296 | return 0; | |
297 | } | |
298 | ||
299 | return 1; | |
300 | } | |
301 | ||
302 | EVP_PKEY *EVP_PKEY_new_CMAC_key(ENGINE *e, const unsigned char *priv, | |
303 | size_t len, const EVP_CIPHER *cipher) | |
304 | { | |
305 | # ifndef OPENSSL_NO_CMAC | |
306 | # ifndef OPENSSL_NO_ENGINE | |
307 | const char *engine_id = e != NULL ? ENGINE_get_id(e) : NULL; | |
308 | # endif | |
309 | const char *cipher_name = EVP_CIPHER_name(cipher); | |
310 | const OSSL_PROVIDER *prov = EVP_CIPHER_provider(cipher); | |
311 | OPENSSL_CTX *libctx = | |
312 | prov == NULL ? NULL : ossl_provider_library_context(prov); | |
313 | EVP_PKEY *ret = EVP_PKEY_new(); | |
314 | EVP_MAC *cmac = EVP_MAC_fetch(libctx, OSSL_MAC_NAME_CMAC, NULL); | |
315 | EVP_MAC_CTX *cmctx = cmac != NULL ? EVP_MAC_CTX_new(cmac) : NULL; | |
316 | OSSL_PARAM params[4]; | |
317 | size_t paramsn = 0; | |
318 | ||
319 | if (ret == NULL | |
320 | || cmctx == NULL | |
321 | || !pkey_set_type(ret, e, EVP_PKEY_CMAC, NULL, -1)) { | |
322 | /* EVPerr already called */ | |
323 | goto err; | |
324 | } | |
325 | ||
326 | # ifndef OPENSSL_NO_ENGINE | |
327 | if (engine_id != NULL) | |
328 | params[paramsn++] = | |
329 | OSSL_PARAM_construct_utf8_string("engine", (char *)engine_id, 0); | |
330 | # endif | |
331 | ||
332 | params[paramsn++] = | |
333 | OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_CIPHER, | |
334 | (char *)cipher_name, 0); | |
335 | params[paramsn++] = | |
336 | OSSL_PARAM_construct_octet_string(OSSL_MAC_PARAM_KEY, | |
337 | (char *)priv, len); | |
338 | params[paramsn] = OSSL_PARAM_construct_end(); | |
339 | ||
340 | if (!EVP_MAC_CTX_set_params(cmctx, params)) { | |
341 | EVPerr(EVP_F_EVP_PKEY_NEW_CMAC_KEY, EVP_R_KEY_SETUP_FAILED); | |
342 | goto err; | |
343 | } | |
344 | ||
345 | ret->pkey.ptr = cmctx; | |
346 | return ret; | |
347 | ||
348 | err: | |
349 | EVP_PKEY_free(ret); | |
350 | EVP_MAC_CTX_free(cmctx); | |
351 | EVP_MAC_free(cmac); | |
352 | return NULL; | |
353 | # else | |
354 | EVPerr(EVP_F_EVP_PKEY_NEW_CMAC_KEY, | |
355 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
356 | return NULL; | |
357 | # endif | |
358 | } | |
359 | ||
360 | int EVP_PKEY_set_type(EVP_PKEY *pkey, int type) | |
361 | { | |
362 | return pkey_set_type(pkey, NULL, type, NULL, -1); | |
363 | } | |
364 | ||
365 | int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len) | |
366 | { | |
367 | return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, str, len); | |
368 | } | |
369 | ||
370 | int EVP_PKEY_set_alias_type(EVP_PKEY *pkey, int type) | |
371 | { | |
372 | if (pkey->type == type) { | |
373 | return 1; /* it already is that type */ | |
374 | } | |
375 | ||
376 | /* | |
377 | * The application is requesting to alias this to a different pkey type, | |
378 | * but not one that resolves to the base type. | |
379 | */ | |
380 | if (EVP_PKEY_type(type) != EVP_PKEY_base_id(pkey)) { | |
381 | EVPerr(EVP_F_EVP_PKEY_SET_ALIAS_TYPE, EVP_R_UNSUPPORTED_ALGORITHM); | |
382 | return 0; | |
383 | } | |
384 | ||
385 | pkey->type = type; | |
386 | return 1; | |
387 | } | |
388 | ||
389 | # ifndef OPENSSL_NO_ENGINE | |
390 | int EVP_PKEY_set1_engine(EVP_PKEY *pkey, ENGINE *e) | |
391 | { | |
392 | if (e != NULL) { | |
393 | if (!ENGINE_init(e)) { | |
394 | EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, ERR_R_ENGINE_LIB); | |
395 | return 0; | |
396 | } | |
397 | if (ENGINE_get_pkey_meth(e, pkey->type) == NULL) { | |
398 | ENGINE_finish(e); | |
399 | EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, EVP_R_UNSUPPORTED_ALGORITHM); | |
400 | return 0; | |
401 | } | |
402 | } | |
403 | ENGINE_finish(pkey->pmeth_engine); | |
404 | pkey->pmeth_engine = e; | |
405 | return 1; | |
406 | } | |
407 | ||
408 | ENGINE *EVP_PKEY_get0_engine(const EVP_PKEY *pkey) | |
409 | { | |
410 | return pkey->engine; | |
411 | } | |
412 | # endif | |
413 | int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) | |
414 | { | |
415 | int alias = type; | |
416 | ||
417 | #ifndef OPENSSL_NO_EC | |
418 | if (EVP_PKEY_type(type) == EVP_PKEY_EC) { | |
419 | const EC_GROUP *group = EC_KEY_get0_group(key); | |
420 | ||
421 | if (group != NULL && EC_GROUP_get_curve_name(group) == NID_sm2) | |
422 | alias = EVP_PKEY_SM2; | |
423 | } | |
424 | #endif | |
425 | ||
426 | if (pkey == NULL || !EVP_PKEY_set_type(pkey, type)) | |
427 | return 0; | |
428 | if (!EVP_PKEY_set_alias_type(pkey, alias)) | |
429 | return 0; | |
430 | pkey->pkey.ptr = key; | |
431 | return (key != NULL); | |
432 | } | |
433 | ||
434 | void *EVP_PKEY_get0(const EVP_PKEY *pkey) | |
435 | { | |
436 | return pkey->pkey.ptr; | |
437 | } | |
438 | ||
439 | const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len) | |
440 | { | |
441 | ASN1_OCTET_STRING *os = NULL; | |
442 | if (pkey->type != EVP_PKEY_HMAC) { | |
443 | EVPerr(EVP_F_EVP_PKEY_GET0_HMAC, EVP_R_EXPECTING_AN_HMAC_KEY); | |
444 | return NULL; | |
445 | } | |
446 | os = EVP_PKEY_get0(pkey); | |
447 | *len = os->length; | |
448 | return os->data; | |
449 | } | |
450 | ||
451 | # ifndef OPENSSL_NO_POLY1305 | |
452 | const unsigned char *EVP_PKEY_get0_poly1305(const EVP_PKEY *pkey, size_t *len) | |
453 | { | |
454 | ASN1_OCTET_STRING *os = NULL; | |
455 | if (pkey->type != EVP_PKEY_POLY1305) { | |
456 | EVPerr(EVP_F_EVP_PKEY_GET0_POLY1305, EVP_R_EXPECTING_A_POLY1305_KEY); | |
457 | return NULL; | |
458 | } | |
459 | os = EVP_PKEY_get0(pkey); | |
460 | *len = os->length; | |
461 | return os->data; | |
462 | } | |
463 | # endif | |
464 | ||
465 | # ifndef OPENSSL_NO_SIPHASH | |
466 | const unsigned char *EVP_PKEY_get0_siphash(const EVP_PKEY *pkey, size_t *len) | |
467 | { | |
468 | ASN1_OCTET_STRING *os = NULL; | |
469 | ||
470 | if (pkey->type != EVP_PKEY_SIPHASH) { | |
471 | EVPerr(EVP_F_EVP_PKEY_GET0_SIPHASH, EVP_R_EXPECTING_A_SIPHASH_KEY); | |
472 | return NULL; | |
473 | } | |
474 | os = EVP_PKEY_get0(pkey); | |
475 | *len = os->length; | |
476 | return os->data; | |
477 | } | |
478 | # endif | |
479 | ||
480 | # ifndef OPENSSL_NO_RSA | |
481 | int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) | |
482 | { | |
483 | int ret = EVP_PKEY_assign_RSA(pkey, key); | |
484 | if (ret) | |
485 | RSA_up_ref(key); | |
486 | return ret; | |
487 | } | |
488 | ||
489 | RSA *EVP_PKEY_get0_RSA(const EVP_PKEY *pkey) | |
490 | { | |
491 | if (pkey->type != EVP_PKEY_RSA && pkey->type != EVP_PKEY_RSA_PSS) { | |
492 | EVPerr(EVP_F_EVP_PKEY_GET0_RSA, EVP_R_EXPECTING_AN_RSA_KEY); | |
493 | return NULL; | |
494 | } | |
495 | return pkey->pkey.rsa; | |
496 | } | |
497 | ||
498 | RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey) | |
499 | { | |
500 | RSA *ret = EVP_PKEY_get0_RSA(pkey); | |
501 | if (ret != NULL) | |
502 | RSA_up_ref(ret); | |
503 | return ret; | |
504 | } | |
505 | # endif | |
506 | ||
507 | # ifndef OPENSSL_NO_DSA | |
508 | int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) | |
509 | { | |
510 | int ret = EVP_PKEY_assign_DSA(pkey, key); | |
511 | if (ret) | |
512 | DSA_up_ref(key); | |
513 | return ret; | |
514 | } | |
515 | ||
516 | DSA *EVP_PKEY_get0_DSA(const EVP_PKEY *pkey) | |
517 | { | |
518 | if (pkey->type != EVP_PKEY_DSA) { | |
519 | EVPerr(EVP_F_EVP_PKEY_GET0_DSA, EVP_R_EXPECTING_A_DSA_KEY); | |
520 | return NULL; | |
521 | } | |
522 | return pkey->pkey.dsa; | |
523 | } | |
524 | ||
525 | DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) | |
526 | { | |
527 | DSA *ret = EVP_PKEY_get0_DSA(pkey); | |
528 | if (ret != NULL) | |
529 | DSA_up_ref(ret); | |
530 | return ret; | |
531 | } | |
532 | # endif | |
533 | ||
534 | # ifndef OPENSSL_NO_EC | |
535 | ||
536 | int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) | |
537 | { | |
538 | int ret = EVP_PKEY_assign_EC_KEY(pkey, key); | |
539 | if (ret) | |
540 | EC_KEY_up_ref(key); | |
541 | return ret; | |
542 | } | |
543 | ||
544 | EC_KEY *EVP_PKEY_get0_EC_KEY(const EVP_PKEY *pkey) | |
545 | { | |
546 | if (EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) { | |
547 | EVPerr(EVP_F_EVP_PKEY_GET0_EC_KEY, EVP_R_EXPECTING_A_EC_KEY); | |
548 | return NULL; | |
549 | } | |
550 | return pkey->pkey.ec; | |
551 | } | |
552 | ||
553 | EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) | |
554 | { | |
555 | EC_KEY *ret = EVP_PKEY_get0_EC_KEY(pkey); | |
556 | if (ret != NULL) | |
557 | EC_KEY_up_ref(ret); | |
558 | return ret; | |
559 | } | |
560 | # endif | |
561 | ||
562 | # ifndef OPENSSL_NO_DH | |
563 | ||
564 | int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) | |
565 | { | |
566 | int type = DH_get0_q(key) == NULL ? EVP_PKEY_DH : EVP_PKEY_DHX; | |
567 | int ret = EVP_PKEY_assign(pkey, type, key); | |
568 | ||
569 | if (ret) | |
570 | DH_up_ref(key); | |
571 | return ret; | |
572 | } | |
573 | ||
574 | DH *EVP_PKEY_get0_DH(const EVP_PKEY *pkey) | |
575 | { | |
576 | if (pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) { | |
577 | EVPerr(EVP_F_EVP_PKEY_GET0_DH, EVP_R_EXPECTING_A_DH_KEY); | |
578 | return NULL; | |
579 | } | |
580 | return pkey->pkey.dh; | |
581 | } | |
582 | ||
583 | DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) | |
584 | { | |
585 | DH *ret = EVP_PKEY_get0_DH(pkey); | |
586 | if (ret != NULL) | |
587 | DH_up_ref(ret); | |
588 | return ret; | |
589 | } | |
590 | # endif | |
591 | ||
592 | int EVP_PKEY_type(int type) | |
593 | { | |
594 | int ret; | |
595 | const EVP_PKEY_ASN1_METHOD *ameth; | |
596 | ENGINE *e; | |
597 | ameth = EVP_PKEY_asn1_find(&e, type); | |
598 | if (ameth) | |
599 | ret = ameth->pkey_id; | |
600 | else | |
601 | ret = NID_undef; | |
602 | # ifndef OPENSSL_NO_ENGINE | |
603 | ENGINE_finish(e); | |
604 | # endif | |
605 | return ret; | |
606 | } | |
607 | ||
608 | int EVP_PKEY_id(const EVP_PKEY *pkey) | |
609 | { | |
610 | return pkey->type; | |
611 | } | |
612 | ||
613 | int EVP_PKEY_base_id(const EVP_PKEY *pkey) | |
614 | { | |
615 | return EVP_PKEY_type(pkey->type); | |
616 | } | |
617 | ||
618 | ||
619 | static int print_reset_indent(BIO **out, int pop_f_prefix, long saved_indent) | |
620 | { | |
621 | BIO_set_indent(*out, saved_indent); | |
622 | if (pop_f_prefix) { | |
623 | BIO *next = BIO_pop(*out); | |
624 | ||
625 | BIO_free(*out); | |
626 | *out = next; | |
627 | } | |
628 | return 1; | |
629 | } | |
630 | ||
631 | static int print_set_indent(BIO **out, int *pop_f_prefix, long *saved_indent, | |
632 | long indent) | |
633 | { | |
634 | *pop_f_prefix = 0; | |
635 | *saved_indent = 0; | |
636 | if (indent > 0) { | |
637 | long i = BIO_get_indent(*out); | |
638 | ||
639 | *saved_indent = (i < 0 ? 0 : i); | |
640 | if (BIO_set_indent(*out, indent) <= 0) { | |
641 | if ((*out = BIO_push(BIO_new(BIO_f_prefix()), *out)) == NULL) | |
642 | return 0; | |
643 | *pop_f_prefix = 1; | |
644 | } | |
645 | if (BIO_set_indent(*out, indent) <= 0) { | |
646 | print_reset_indent(out, *pop_f_prefix, *saved_indent); | |
647 | return 0; | |
648 | } | |
649 | } | |
650 | return 1; | |
651 | } | |
652 | ||
653 | static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent, | |
654 | const char *kstr) | |
655 | { | |
656 | return BIO_indent(out, indent, 128) | |
657 | && BIO_printf(out, "%s algorithm \"%s\" unsupported\n", | |
658 | kstr, OBJ_nid2ln(pkey->type)) > 0; | |
659 | } | |
660 | ||
661 | static int print_pkey(const EVP_PKEY *pkey, BIO *out, int indent, | |
662 | const char *propquery /* For provided serialization */, | |
663 | int (*legacy_print)(BIO *out, const EVP_PKEY *pkey, | |
664 | int indent, ASN1_PCTX *pctx), | |
665 | ASN1_PCTX *legacy_pctx /* For legacy print */) | |
666 | { | |
667 | int pop_f_prefix; | |
668 | long saved_indent; | |
669 | OSSL_SERIALIZER_CTX *ctx = NULL; | |
670 | int ret = -2; /* default to unsupported */ | |
671 | ||
672 | if (!print_set_indent(&out, &pop_f_prefix, &saved_indent, indent)) | |
673 | return 0; | |
674 | ||
675 | ctx = OSSL_SERIALIZER_CTX_new_by_EVP_PKEY(pkey, propquery); | |
676 | if (OSSL_SERIALIZER_CTX_get_serializer(ctx) != NULL) | |
677 | ret = OSSL_SERIALIZER_to_bio(ctx, out); | |
678 | OSSL_SERIALIZER_CTX_free(ctx); | |
679 | ||
680 | if (ret != -2) | |
681 | goto end; | |
682 | ||
683 | /* legacy fallback */ | |
684 | if (legacy_print != NULL) | |
685 | ret = legacy_print(out, pkey, 0, legacy_pctx); | |
686 | else | |
687 | ret = unsup_alg(out, pkey, 0, "Public Key"); | |
688 | ||
689 | end: | |
690 | print_reset_indent(&out, pop_f_prefix, saved_indent); | |
691 | return ret; | |
692 | } | |
693 | ||
694 | int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, | |
695 | int indent, ASN1_PCTX *pctx) | |
696 | { | |
697 | return print_pkey(pkey, out, indent, OSSL_SERIALIZER_PUBKEY_TO_TEXT_PQ, | |
698 | (pkey->ameth != NULL ? pkey->ameth->pub_print : NULL), | |
699 | pctx); | |
700 | } | |
701 | ||
702 | int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, | |
703 | int indent, ASN1_PCTX *pctx) | |
704 | { | |
705 | return print_pkey(pkey, out, indent, OSSL_SERIALIZER_PrivateKey_TO_TEXT_PQ, | |
706 | (pkey->ameth != NULL ? pkey->ameth->priv_print : NULL), | |
707 | pctx); | |
708 | } | |
709 | ||
710 | int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, | |
711 | int indent, ASN1_PCTX *pctx) | |
712 | { | |
713 | return print_pkey(pkey, out, indent, OSSL_SERIALIZER_Parameters_TO_TEXT_PQ, | |
714 | (pkey->ameth != NULL ? pkey->ameth->param_print : NULL), | |
715 | pctx); | |
716 | } | |
717 | ||
718 | static int legacy_asn1_ctrl_to_param(EVP_PKEY *pkey, int op, | |
719 | int arg1, void *arg2) | |
720 | { | |
721 | if (pkey->keymgmt == NULL) | |
722 | return 0; | |
723 | switch (op) { | |
724 | case ASN1_PKEY_CTRL_DEFAULT_MD_NID: | |
725 | { | |
726 | char mdname[80] = ""; | |
727 | int nid; | |
728 | int rv = EVP_PKEY_get_default_digest_name(pkey, mdname, | |
729 | sizeof(mdname)); | |
730 | ||
731 | if (rv <= 0) | |
732 | return rv; | |
733 | nid = OBJ_sn2nid(mdname); | |
734 | if (nid == NID_undef) | |
735 | nid = OBJ_ln2nid(mdname); | |
736 | if (nid == NID_undef) | |
737 | return 0; | |
738 | *(int *)arg2 = nid; | |
739 | return 1; | |
740 | } | |
741 | default: | |
742 | return -2; | |
743 | } | |
744 | } | |
745 | ||
746 | static int evp_pkey_asn1_ctrl(EVP_PKEY *pkey, int op, int arg1, void *arg2) | |
747 | { | |
748 | if (pkey->ameth == NULL) | |
749 | return legacy_asn1_ctrl_to_param(pkey, op, arg1, arg2); | |
750 | if (pkey->ameth->pkey_ctrl == NULL) | |
751 | return -2; | |
752 | return pkey->ameth->pkey_ctrl(pkey, op, arg1, arg2); | |
753 | } | |
754 | ||
755 | int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid) | |
756 | { | |
757 | return evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 0, pnid); | |
758 | } | |
759 | ||
760 | int EVP_PKEY_get_default_digest_name(EVP_PKEY *pkey, | |
761 | char *mdname, size_t mdname_sz) | |
762 | { | |
763 | if (pkey->ameth == NULL) { | |
764 | OSSL_PARAM params[3]; | |
765 | char mddefault[100] = ""; | |
766 | char mdmandatory[100] = ""; | |
767 | ||
768 | params[0] = | |
769 | OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST, | |
770 | mddefault, sizeof(mddefault)); | |
771 | params[1] = | |
772 | OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_MANDATORY_DIGEST, | |
773 | mdmandatory, | |
774 | sizeof(mdmandatory)); | |
775 | params[2] = OSSL_PARAM_construct_end(); | |
776 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) | |
777 | return 0; | |
778 | if (mdmandatory[0] != '\0') { | |
779 | OPENSSL_strlcpy(mdname, mdmandatory, mdname_sz); | |
780 | return 2; | |
781 | } | |
782 | OPENSSL_strlcpy(mdname, mddefault, mdname_sz); | |
783 | return 1; | |
784 | } | |
785 | ||
786 | { | |
787 | int nid = NID_undef; | |
788 | int rv = EVP_PKEY_get_default_digest_nid(pkey, &nid); | |
789 | const char *name = rv > 0 ? OBJ_nid2sn(nid) : NULL; | |
790 | ||
791 | if (rv > 0) | |
792 | OPENSSL_strlcpy(mdname, name, mdname_sz); | |
793 | return rv; | |
794 | } | |
795 | } | |
796 | ||
797 | int EVP_PKEY_supports_digest_nid(EVP_PKEY *pkey, int nid) | |
798 | { | |
799 | int rv, default_nid; | |
800 | ||
801 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SUPPORTS_MD_NID, nid, NULL); | |
802 | if (rv == -2) { | |
803 | /* | |
804 | * If there is a mandatory default digest and this isn't it, then | |
805 | * the answer is 'no'. | |
806 | */ | |
807 | rv = EVP_PKEY_get_default_digest_nid(pkey, &default_nid); | |
808 | if (rv == 2) | |
809 | return (nid == default_nid); | |
810 | /* zero is an error from EVP_PKEY_get_default_digest_nid() */ | |
811 | if (rv == 0) | |
812 | return -1; | |
813 | } | |
814 | return rv; | |
815 | } | |
816 | ||
817 | int EVP_PKEY_set1_tls_encodedpoint(EVP_PKEY *pkey, | |
818 | const unsigned char *pt, size_t ptlen) | |
819 | { | |
820 | if (ptlen > INT_MAX) | |
821 | return 0; | |
822 | if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, ptlen, | |
823 | (void *)pt) <= 0) | |
824 | return 0; | |
825 | return 1; | |
826 | } | |
827 | ||
828 | size_t EVP_PKEY_get1_tls_encodedpoint(EVP_PKEY *pkey, unsigned char **ppt) | |
829 | { | |
830 | int rv; | |
831 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppt); | |
832 | if (rv <= 0) | |
833 | return 0; | |
834 | return rv; | |
835 | } | |
836 | ||
837 | #endif /* FIPS_MODE */ | |
838 | ||
839 | /*- All methods below can also be used in FIPS_MODE */ | |
840 | ||
841 | EVP_PKEY *EVP_PKEY_new(void) | |
842 | { | |
843 | EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret)); | |
844 | ||
845 | if (ret == NULL) { | |
846 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
847 | return NULL; | |
848 | } | |
849 | ret->type = EVP_PKEY_NONE; | |
850 | ret->save_type = EVP_PKEY_NONE; | |
851 | ret->references = 1; | |
852 | ret->save_parameters = 1; | |
853 | ret->lock = CRYPTO_THREAD_lock_new(); | |
854 | if (ret->lock == NULL) { | |
855 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
856 | OPENSSL_free(ret); | |
857 | return NULL; | |
858 | } | |
859 | return ret; | |
860 | } | |
861 | ||
862 | int EVP_PKEY_up_ref(EVP_PKEY *pkey) | |
863 | { | |
864 | int i; | |
865 | ||
866 | if (CRYPTO_UP_REF(&pkey->references, &i, pkey->lock) <= 0) | |
867 | return 0; | |
868 | ||
869 | REF_PRINT_COUNT("EVP_PKEY", pkey); | |
870 | REF_ASSERT_ISNT(i < 2); | |
871 | return ((i > 1) ? 1 : 0); | |
872 | } | |
873 | ||
874 | #ifndef FIPS_MODE | |
875 | static void evp_pkey_free_legacy(EVP_PKEY *x) | |
876 | { | |
877 | if (x->ameth != NULL) { | |
878 | if (x->ameth->pkey_free) | |
879 | x->ameth->pkey_free(x); | |
880 | x->pkey.ptr = NULL; | |
881 | x->ameth = NULL; | |
882 | } | |
883 | # ifndef OPENSSL_NO_ENGINE | |
884 | ENGINE_finish(x->engine); | |
885 | x->engine = NULL; | |
886 | ENGINE_finish(x->pmeth_engine); | |
887 | x->pmeth_engine = NULL; | |
888 | # endif | |
889 | x->type = x->save_type = EVP_PKEY_NONE; | |
890 | } | |
891 | #endif /* FIPS_MODE */ | |
892 | ||
893 | static void evp_pkey_free_it(EVP_PKEY *x) | |
894 | { | |
895 | /* internal function; x is never NULL */ | |
896 | ||
897 | evp_keymgmt_util_clear_operation_cache(x); | |
898 | #ifndef FIPS_MODE | |
899 | evp_pkey_free_legacy(x); | |
900 | #endif | |
901 | ||
902 | if (x->keymgmt != NULL) { | |
903 | evp_keymgmt_freedata(x->keymgmt, x->keydata); | |
904 | EVP_KEYMGMT_free(x->keymgmt); | |
905 | x->keymgmt = NULL; | |
906 | x->keydata = NULL; | |
907 | } | |
908 | } | |
909 | ||
910 | void EVP_PKEY_free(EVP_PKEY *x) | |
911 | { | |
912 | int i; | |
913 | ||
914 | if (x == NULL) | |
915 | return; | |
916 | ||
917 | CRYPTO_DOWN_REF(&x->references, &i, x->lock); | |
918 | REF_PRINT_COUNT("EVP_PKEY", x); | |
919 | if (i > 0) | |
920 | return; | |
921 | REF_ASSERT_ISNT(i < 0); | |
922 | evp_pkey_free_it(x); | |
923 | CRYPTO_THREAD_lock_free(x->lock); | |
924 | #ifndef FIPS_MODE | |
925 | sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free); | |
926 | #endif | |
927 | OPENSSL_free(x); | |
928 | } | |
929 | ||
930 | int EVP_PKEY_size(const EVP_PKEY *pkey) | |
931 | { | |
932 | if (pkey != NULL) { | |
933 | if (pkey->ameth == NULL) | |
934 | return pkey->cache.size; | |
935 | else if (pkey->ameth->pkey_size != NULL) | |
936 | return pkey->ameth->pkey_size(pkey); | |
937 | } | |
938 | return 0; | |
939 | } | |
940 | ||
941 | void *evp_pkey_export_to_provider(EVP_PKEY *pk, OPENSSL_CTX *libctx, | |
942 | EVP_KEYMGMT **keymgmt, | |
943 | const char *propquery) | |
944 | { | |
945 | EVP_KEYMGMT *allocated_keymgmt = NULL; | |
946 | EVP_KEYMGMT *tmp_keymgmt = NULL; | |
947 | void *keydata = NULL; | |
948 | ||
949 | if (pk == NULL) | |
950 | return NULL; | |
951 | ||
952 | #ifndef FIPS_MODE | |
953 | if (pk->pkey.ptr != NULL) { | |
954 | /* | |
955 | * If the legacy key doesn't have an dirty counter or export function, | |
956 | * give up | |
957 | */ | |
958 | if (pk->ameth->dirty_cnt == NULL || pk->ameth->export_to == NULL) | |
959 | return NULL; | |
960 | } | |
961 | #endif | |
962 | ||
963 | if (keymgmt != NULL) { | |
964 | tmp_keymgmt = *keymgmt; | |
965 | *keymgmt = NULL; | |
966 | } | |
967 | ||
968 | /* If no keymgmt was given or found, get a default keymgmt */ | |
969 | if (tmp_keymgmt == NULL) { | |
970 | EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk, propquery); | |
971 | ||
972 | if (ctx != NULL && ctx->keytype != NULL) | |
973 | tmp_keymgmt = allocated_keymgmt = | |
974 | EVP_KEYMGMT_fetch(ctx->libctx, ctx->keytype, propquery); | |
975 | EVP_PKEY_CTX_free(ctx); | |
976 | } | |
977 | ||
978 | /* If there's still no keymgmt to be had, give up */ | |
979 | if (tmp_keymgmt == NULL) | |
980 | goto end; | |
981 | ||
982 | #ifndef FIPS_MODE | |
983 | if (pk->pkey.ptr != NULL) { | |
984 | size_t i = 0; | |
985 | ||
986 | /* | |
987 | * If the legacy "origin" hasn't changed since last time, we try | |
988 | * to find our keymgmt in the operation cache. If it has changed, | |
989 | * |i| remains zero, and we will clear the cache further down. | |
990 | */ | |
991 | if (pk->ameth->dirty_cnt(pk) == pk->dirty_cnt_copy) { | |
992 | i = evp_keymgmt_util_find_operation_cache_index(pk, tmp_keymgmt); | |
993 | ||
994 | /* | |
995 | * If |tmp_keymgmt| is present in the operation cache, it means | |
996 | * that export doesn't need to be redone. In that case, we take | |
997 | * token copies of the cached pointers, to have token success | |
998 | * values to return. | |
999 | */ | |
1000 | if (i < OSSL_NELEM(pk->operation_cache) | |
1001 | && pk->operation_cache[i].keymgmt != NULL) { | |
1002 | keydata = pk->operation_cache[i].keydata; | |
1003 | goto end; | |
1004 | } | |
1005 | } | |
1006 | ||
1007 | /* | |
1008 | * TODO(3.0) Right now, we assume we have ample space. We will have | |
1009 | * to think about a cache aging scheme, though, if |i| indexes outside | |
1010 | * the array. | |
1011 | */ | |
1012 | if (!ossl_assert(i < OSSL_NELEM(pk->operation_cache))) | |
1013 | goto end; | |
1014 | ||
1015 | /* Make sure that the keymgmt key type matches the legacy NID */ | |
1016 | if (!ossl_assert(EVP_KEYMGMT_is_a(tmp_keymgmt, OBJ_nid2sn(pk->type)))) | |
1017 | goto end; | |
1018 | ||
1019 | if ((keydata = evp_keymgmt_newdata(tmp_keymgmt)) == NULL) | |
1020 | goto end; | |
1021 | ||
1022 | if (!pk->ameth->export_to(pk, keydata, tmp_keymgmt)) { | |
1023 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1024 | keydata = NULL; | |
1025 | goto end; | |
1026 | } | |
1027 | ||
1028 | /* | |
1029 | * If the dirty counter changed since last time, then clear the | |
1030 | * operation cache. In that case, we know that |i| is zero. Just | |
1031 | * in case this is a re-export, we increment then decrement the | |
1032 | * keymgmt reference counter. | |
1033 | */ | |
1034 | if (!EVP_KEYMGMT_up_ref(tmp_keymgmt)) { /* refcnt++ */ | |
1035 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1036 | keydata = NULL; | |
1037 | goto end; | |
1038 | } | |
1039 | if (pk->ameth->dirty_cnt(pk) != pk->dirty_cnt_copy) | |
1040 | evp_keymgmt_util_clear_operation_cache(pk); | |
1041 | EVP_KEYMGMT_free(tmp_keymgmt); /* refcnt-- */ | |
1042 | ||
1043 | /* Add the new export to the operation cache */ | |
1044 | if (!evp_keymgmt_util_cache_keydata(pk, i, tmp_keymgmt, keydata)) { | |
1045 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1046 | keydata = NULL; | |
1047 | goto end; | |
1048 | } | |
1049 | ||
1050 | /* Synchronize the dirty count */ | |
1051 | pk->dirty_cnt_copy = pk->ameth->dirty_cnt(pk); | |
1052 | goto end; | |
1053 | } | |
1054 | #endif /* FIPS_MODE */ | |
1055 | ||
1056 | keydata = evp_keymgmt_util_export_to_provider(pk, tmp_keymgmt); | |
1057 | ||
1058 | end: | |
1059 | /* | |
1060 | * If nothing was exported, |tmp_keymgmt| might point at a freed | |
1061 | * EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for | |
1062 | * the caller either way in that case. | |
1063 | */ | |
1064 | if (keydata == NULL) | |
1065 | tmp_keymgmt = NULL; | |
1066 | ||
1067 | if (keymgmt != NULL) | |
1068 | *keymgmt = tmp_keymgmt; | |
1069 | ||
1070 | EVP_KEYMGMT_free(allocated_keymgmt); | |
1071 | return keydata; | |
1072 | } | |
1073 | ||
1074 | #ifndef FIPS_MODE | |
1075 | /* | |
1076 | * This differs from exporting in that it releases the legacy key and assigns | |
1077 | * the export keymgmt and keydata to the "origin" provider side key instead | |
1078 | * of the operation cache. | |
1079 | */ | |
1080 | void *evp_pkey_upgrade_to_provider(EVP_PKEY *pk, OPENSSL_CTX *libctx, | |
1081 | EVP_KEYMGMT **keymgmt, | |
1082 | const char *propquery) | |
1083 | { | |
1084 | EVP_KEYMGMT *allocated_keymgmt = NULL; | |
1085 | EVP_KEYMGMT *tmp_keymgmt = NULL; | |
1086 | void *keydata = NULL; | |
1087 | ||
1088 | if (pk == NULL) | |
1089 | return NULL; | |
1090 | ||
1091 | /* | |
1092 | * If this key is already "upgraded", this function shouldn't have been | |
1093 | * called. | |
1094 | */ | |
1095 | if (!ossl_assert(pk->keymgmt == NULL)) | |
1096 | return NULL; | |
1097 | ||
1098 | if (keymgmt != NULL) { | |
1099 | tmp_keymgmt = *keymgmt; | |
1100 | *keymgmt = NULL; | |
1101 | } | |
1102 | ||
1103 | /* If the key isn't a legacy one, bail out, but with proper values */ | |
1104 | if (pk->pkey.ptr == NULL) { | |
1105 | tmp_keymgmt = pk->keymgmt; | |
1106 | keydata = pk->keydata; | |
1107 | } else { | |
1108 | /* If the legacy key doesn't have an export function, give up */ | |
1109 | if (pk->ameth->export_to == NULL) | |
1110 | return NULL; | |
1111 | ||
1112 | /* If no keymgmt was given, get a default keymgmt */ | |
1113 | if (tmp_keymgmt == NULL) { | |
1114 | EVP_PKEY_CTX *ctx = | |
1115 | EVP_PKEY_CTX_new_from_pkey(libctx, pk, propquery); | |
1116 | ||
1117 | if (ctx != NULL && ctx->keytype != NULL) | |
1118 | tmp_keymgmt = allocated_keymgmt = | |
1119 | EVP_KEYMGMT_fetch(ctx->libctx, ctx->keytype, propquery); | |
1120 | EVP_PKEY_CTX_free(ctx); | |
1121 | } | |
1122 | ||
1123 | /* If we still don't have a keymgmt, give up */ | |
1124 | if (tmp_keymgmt == NULL) | |
1125 | goto end; | |
1126 | ||
1127 | /* Make sure that the keymgmt key type matches the legacy NID */ | |
1128 | if (!ossl_assert(EVP_KEYMGMT_is_a(tmp_keymgmt, OBJ_nid2sn(pk->type)))) | |
1129 | goto end; | |
1130 | ||
1131 | if ((keydata = evp_keymgmt_newdata(tmp_keymgmt)) == NULL) | |
1132 | goto end; | |
1133 | ||
1134 | if (!pk->ameth->export_to(pk, keydata, tmp_keymgmt) | |
1135 | || !EVP_KEYMGMT_up_ref(tmp_keymgmt)) { | |
1136 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1137 | keydata = NULL; | |
1138 | goto end; | |
1139 | } | |
1140 | ||
1141 | /* | |
1142 | * Clear the operation cache, all the legacy data, as well as the | |
1143 | * dirty counters | |
1144 | */ | |
1145 | evp_pkey_free_legacy(pk); | |
1146 | pk->dirty_cnt_copy = 0; | |
1147 | ||
1148 | evp_keymgmt_util_clear_operation_cache(pk); | |
1149 | pk->keymgmt = tmp_keymgmt; | |
1150 | pk->keydata = keydata; | |
1151 | evp_keymgmt_util_cache_keyinfo(pk); | |
1152 | } | |
1153 | ||
1154 | end: | |
1155 | /* | |
1156 | * If nothing was upgraded, |tmp_keymgmt| might point at a freed | |
1157 | * EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for | |
1158 | * the caller either way in that case. | |
1159 | */ | |
1160 | if (keydata == NULL) | |
1161 | tmp_keymgmt = NULL; | |
1162 | ||
1163 | if (keymgmt != NULL) | |
1164 | *keymgmt = tmp_keymgmt; | |
1165 | ||
1166 | EVP_KEYMGMT_free(allocated_keymgmt); | |
1167 | return keydata; | |
1168 | } | |
1169 | #endif /* FIPS_MODE */ |