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62867571 | 1 | /* |
4333b89f | 2 | * Copyright 1995-2021 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" |
5060cd5f | 19 | #include "internal/namemap.h" |
4d94ae00 BM |
20 | #include <openssl/bn.h> |
21 | #include <openssl/err.h> | |
ec577822 BM |
22 | #include <openssl/objects.h> |
23 | #include <openssl/evp.h> | |
ec577822 | 24 | #include <openssl/x509.h> |
3c27208f RS |
25 | #include <openssl/rsa.h> |
26 | #include <openssl/dsa.h> | |
27 | #include <openssl/dh.h> | |
4f76d62f | 28 | #include <openssl/ec.h> |
b3831fbb | 29 | #include <openssl/cmac.h> |
3c27208f | 30 | #include <openssl/engine.h> |
e74bd290 | 31 | #include <openssl/params.h> |
1c4f340d | 32 | #include <openssl/param_build.h> |
ece9304c | 33 | #include <openssl/encoder.h> |
e74bd290 | 34 | #include <openssl/core_names.h> |
01b8b3c7 | 35 | |
88bddad4 | 36 | #include "internal/ffc.h" |
25f2138b DMSP |
37 | #include "crypto/asn1.h" |
38 | #include "crypto/evp.h" | |
565b3399 | 39 | #include "crypto/ec.h" |
7c664b1f | 40 | #include "crypto/ecx.h" |
e74bd290 | 41 | #include "internal/provider.h" |
f6aa5774 | 42 | #include "evp_local.h" |
18e377b4 | 43 | |
4f76d62f RL |
44 | #include "crypto/ec.h" |
45 | ||
4f76d62f RL |
46 | #include "e_os.h" /* strcasecmp on Windows */ |
47 | ||
8243d8d1 RL |
48 | static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str, |
49 | int len, EVP_KEYMGMT *keymgmt); | |
e683582b SL |
50 | static void evp_pkey_free_it(EVP_PKEY *key); |
51 | ||
f844f9eb | 52 | #ifndef FIPS_MODULE |
bb2297a4 | 53 | |
8158cf20 RL |
54 | /* The type of parameters selected in key parameter functions */ |
55 | # define SELECT_PARAMETERS OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS | |
56 | ||
8900f3e3 | 57 | int EVP_PKEY_bits(const EVP_PKEY *pkey) |
0f113f3e | 58 | { |
030da844 RL |
59 | int size = 0; |
60 | ||
6508e858 | 61 | if (pkey != NULL) { |
030da844 RL |
62 | size = pkey->cache.bits; |
63 | if (pkey->ameth != NULL && pkey->ameth->pkey_bits != NULL) | |
64 | size = pkey->ameth->pkey_bits(pkey); | |
6508e858 | 65 | } |
030da844 | 66 | return size < 0 ? 0 : size; |
0f113f3e | 67 | } |
58964a49 | 68 | |
2514fa79 | 69 | int EVP_PKEY_security_bits(const EVP_PKEY *pkey) |
0f113f3e | 70 | { |
030da844 RL |
71 | int size = 0; |
72 | ||
73 | if (pkey != NULL) { | |
74 | size = pkey->cache.security_bits; | |
75 | if (pkey->ameth != NULL && pkey->ameth->pkey_security_bits != NULL) | |
76 | size = pkey->ameth->pkey_security_bits(pkey); | |
77 | } | |
78 | return size < 0 ? 0 : size; | |
0f113f3e | 79 | } |
2514fa79 | 80 | |
6b691a5c | 81 | int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode) |
0f113f3e | 82 | { |
e683582b | 83 | # ifndef OPENSSL_NO_DSA |
0f113f3e MC |
84 | if (pkey->type == EVP_PKEY_DSA) { |
85 | int ret = pkey->save_parameters; | |
86 | ||
87 | if (mode >= 0) | |
88 | pkey->save_parameters = mode; | |
26a7d938 | 89 | return ret; |
0f113f3e | 90 | } |
e683582b SL |
91 | # endif |
92 | # ifndef OPENSSL_NO_EC | |
0f113f3e MC |
93 | if (pkey->type == EVP_PKEY_EC) { |
94 | int ret = pkey->save_parameters; | |
95 | ||
96 | if (mode >= 0) | |
97 | pkey->save_parameters = mode; | |
26a7d938 | 98 | return ret; |
0f113f3e | 99 | } |
e683582b | 100 | # endif |
26a7d938 | 101 | return 0; |
0f113f3e | 102 | } |
d02b48c6 | 103 | |
ff1f7cde AT |
104 | int EVP_PKEY_set_ex_data(EVP_PKEY *key, int idx, void *arg) |
105 | { | |
106 | return CRYPTO_set_ex_data(&key->ex_data, idx, arg); | |
107 | } | |
108 | ||
109 | void *EVP_PKEY_get_ex_data(const EVP_PKEY *key, int idx) | |
110 | { | |
111 | return CRYPTO_get_ex_data(&key->ex_data, idx); | |
112 | } | |
113 | ||
a8b72844 | 114 | int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) |
0f113f3e | 115 | { |
ff3b59e1 | 116 | /* |
5b5eea4b | 117 | * Clean up legacy stuff from this function when legacy support is gone. |
ff3b59e1 RL |
118 | */ |
119 | ||
120 | /* | |
acb90ba8 RL |
121 | * If |to| is a legacy key and |from| isn't, we must downgrade |from|. |
122 | * If that fails, this function fails. | |
ff3b59e1 | 123 | */ |
5e5bc836 | 124 | if (evp_pkey_is_legacy(to) && evp_pkey_is_provided(from)) |
acb90ba8 RL |
125 | if (!evp_pkey_downgrade((EVP_PKEY *)from)) |
126 | return 0; | |
127 | ||
128 | /* | |
129 | * Make sure |to| is typed. Content is less important at this early | |
130 | * stage. | |
131 | * | |
132 | * 1. If |to| is untyped, assign |from|'s key type to it. | |
133 | * 2. If |to| contains a legacy key, compare its |type| to |from|'s. | |
134 | * (|from| was already downgraded above) | |
135 | * | |
136 | * If |to| is a provided key, there's nothing more to do here, functions | |
137 | * like evp_keymgmt_util_copy() and evp_pkey_export_to_provider() called | |
138 | * further down help us find out if they are the same or not. | |
139 | */ | |
5e5bc836 RL |
140 | if (evp_pkey_is_blank(to)) { |
141 | if (evp_pkey_is_legacy(from)) { | |
ff3b59e1 RL |
142 | if (EVP_PKEY_set_type(to, from->type) == 0) |
143 | return 0; | |
acb90ba8 RL |
144 | } else { |
145 | if (EVP_PKEY_set_type_by_keymgmt(to, from->keymgmt) == 0) | |
146 | return 0; | |
147 | } | |
5e5bc836 | 148 | } else if (evp_pkey_is_legacy(to)) { |
acb90ba8 | 149 | if (to->type != from->type) { |
9311d0c4 | 150 | ERR_raise(ERR_LIB_EVP, EVP_R_DIFFERENT_KEY_TYPES); |
ff3b59e1 RL |
151 | goto err; |
152 | } | |
0f113f3e MC |
153 | } |
154 | ||
155 | if (EVP_PKEY_missing_parameters(from)) { | |
9311d0c4 | 156 | ERR_raise(ERR_LIB_EVP, EVP_R_MISSING_PARAMETERS); |
0f113f3e MC |
157 | goto err; |
158 | } | |
f72f00d4 DSH |
159 | |
160 | if (!EVP_PKEY_missing_parameters(to)) { | |
c74aaa39 | 161 | if (EVP_PKEY_parameters_eq(to, from) == 1) |
f72f00d4 | 162 | return 1; |
9311d0c4 | 163 | ERR_raise(ERR_LIB_EVP, EVP_R_DIFFERENT_PARAMETERS); |
f72f00d4 DSH |
164 | return 0; |
165 | } | |
166 | ||
ff3b59e1 RL |
167 | /* For purely provided keys, we just call the keymgmt utility */ |
168 | if (to->keymgmt != NULL && from->keymgmt != NULL) | |
8158cf20 | 169 | return evp_keymgmt_util_copy(to, (EVP_PKEY *)from, SELECT_PARAMETERS); |
ff3b59e1 RL |
170 | |
171 | /* | |
172 | * If |to| is provided, we know that |from| is legacy at this point. | |
173 | * Try exporting |from| to |to|'s keymgmt, then use evp_keymgmt_copy() | |
174 | * to copy the appropriate data to |to|'s keydata. | |
175 | */ | |
176 | if (to->keymgmt != NULL) { | |
177 | EVP_KEYMGMT *to_keymgmt = to->keymgmt; | |
178 | void *from_keydata = | |
179 | evp_pkey_export_to_provider((EVP_PKEY *)from, NULL, &to_keymgmt, | |
180 | NULL); | |
181 | ||
acb90ba8 RL |
182 | /* |
183 | * If we get a NULL, it could be an internal error, or it could be | |
184 | * that there's a key mismatch. We're pretending the latter... | |
185 | */ | |
ff3b59e1 | 186 | if (from_keydata == NULL) { |
acb90ba8 | 187 | ERR_raise(ERR_LIB_EVP, EVP_R_DIFFERENT_KEY_TYPES); |
ff3b59e1 RL |
188 | return 0; |
189 | } | |
190 | return evp_keymgmt_copy(to->keymgmt, to->keydata, from_keydata, | |
8158cf20 | 191 | SELECT_PARAMETERS); |
ff3b59e1 RL |
192 | } |
193 | ||
194 | /* Both keys are legacy */ | |
195 | if (from->ameth != NULL && from->ameth->param_copy != NULL) | |
0f113f3e MC |
196 | return from->ameth->param_copy(to, from); |
197 | err: | |
198 | return 0; | |
199 | } | |
d02b48c6 | 200 | |
af0f0f3e | 201 | int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey) |
0f113f3e | 202 | { |
157ded39 RL |
203 | if (pkey != NULL) { |
204 | if (pkey->keymgmt != NULL) | |
8158cf20 | 205 | return !evp_keymgmt_util_has((EVP_PKEY *)pkey, SELECT_PARAMETERS); |
157ded39 RL |
206 | else if (pkey->ameth != NULL && pkey->ameth->param_missing != NULL) |
207 | return pkey->ameth->param_missing(pkey); | |
208 | } | |
0f113f3e MC |
209 | return 0; |
210 | } | |
d02b48c6 | 211 | |
1e9101c4 RL |
212 | /* |
213 | * This function is called for any mixture of keys except pure legacy pair. | |
214 | * TODO When legacy keys are gone, we replace a call to this functions with | |
215 | * a call to evp_keymgmt_util_match(). | |
216 | */ | |
217 | static int evp_pkey_cmp_any(const EVP_PKEY *a, const EVP_PKEY *b, | |
218 | int selection) | |
219 | { | |
220 | EVP_KEYMGMT *keymgmt1 = NULL, *keymgmt2 = NULL; | |
221 | void *keydata1 = NULL, *keydata2 = NULL, *tmp_keydata = NULL; | |
222 | ||
223 | /* If none of them are provided, this function shouldn't have been called */ | |
a57fc730 | 224 | if (!ossl_assert(evp_pkey_is_provided(a) || evp_pkey_is_provided(b))) |
1e9101c4 RL |
225 | return -2; |
226 | ||
227 | /* For purely provided keys, we just call the keymgmt utility */ | |
a57fc730 | 228 | if (evp_pkey_is_provided(a) && evp_pkey_is_provided(b)) |
1e9101c4 RL |
229 | return evp_keymgmt_util_match((EVP_PKEY *)a, (EVP_PKEY *)b, selection); |
230 | ||
231 | /* | |
acb90ba8 RL |
232 | * At this point, one of them is provided, the other not. This allows |
233 | * us to compare types using legacy NIDs. | |
234 | */ | |
a57fc730 RL |
235 | if (evp_pkey_is_legacy(a) |
236 | && !EVP_KEYMGMT_is_a(b->keymgmt, OBJ_nid2sn(a->type))) | |
237 | return -1; /* not the same key type */ | |
238 | if (evp_pkey_is_legacy(b) | |
239 | && !EVP_KEYMGMT_is_a(a->keymgmt, OBJ_nid2sn(b->type))) | |
acb90ba8 RL |
240 | return -1; /* not the same key type */ |
241 | ||
242 | /* | |
243 | * We've determined that they both are the same keytype, so the next | |
244 | * step is to do a bit of cross export to ensure we have keydata for | |
245 | * both keys in the same keymgmt. | |
1e9101c4 RL |
246 | */ |
247 | keymgmt1 = a->keymgmt; | |
248 | keydata1 = a->keydata; | |
249 | keymgmt2 = b->keymgmt; | |
250 | keydata2 = b->keydata; | |
251 | ||
1e9101c4 RL |
252 | if (keymgmt2 != NULL && keymgmt2->match != NULL) { |
253 | tmp_keydata = | |
254 | evp_pkey_export_to_provider((EVP_PKEY *)a, NULL, &keymgmt2, NULL); | |
255 | if (tmp_keydata != NULL) { | |
256 | keymgmt1 = keymgmt2; | |
257 | keydata1 = tmp_keydata; | |
258 | } | |
259 | } | |
260 | if (tmp_keydata == NULL && keymgmt1 != NULL && keymgmt1->match != NULL) { | |
261 | tmp_keydata = | |
262 | evp_pkey_export_to_provider((EVP_PKEY *)b, NULL, &keymgmt1, NULL); | |
263 | if (tmp_keydata != NULL) { | |
264 | keymgmt2 = keymgmt1; | |
265 | keydata2 = tmp_keydata; | |
266 | } | |
267 | } | |
268 | ||
269 | /* If we still don't have matching keymgmt implementations, we give up */ | |
270 | if (keymgmt1 != keymgmt2) | |
271 | return -2; | |
272 | ||
a24b510c RL |
273 | /* If the keymgmt implementations are NULL, the export failed */ |
274 | if (keymgmt1 == NULL) | |
275 | return -2; | |
276 | ||
1e9101c4 RL |
277 | return evp_keymgmt_match(keymgmt1, keydata1, keydata2, selection); |
278 | } | |
279 | ||
af0f0f3e | 280 | int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) |
c74aaa39 DDO |
281 | { |
282 | return EVP_PKEY_parameters_eq(a, b); | |
283 | } | |
c74aaa39 DDO |
284 | |
285 | int EVP_PKEY_parameters_eq(const EVP_PKEY *a, const EVP_PKEY *b) | |
0f113f3e | 286 | { |
1e9101c4 RL |
287 | /* |
288 | * TODO: clean up legacy stuff from this function when legacy support | |
289 | * is gone. | |
290 | */ | |
291 | ||
292 | if (a->keymgmt != NULL || b->keymgmt != NULL) | |
8158cf20 | 293 | return evp_pkey_cmp_any(a, b, SELECT_PARAMETERS); |
1e9101c4 RL |
294 | |
295 | /* All legacy keys */ | |
0f113f3e MC |
296 | if (a->type != b->type) |
297 | return -1; | |
1e9101c4 | 298 | if (a->ameth != NULL && a->ameth->param_cmp != NULL) |
0f113f3e MC |
299 | return a->ameth->param_cmp(a, b); |
300 | return -2; | |
301 | } | |
58964a49 | 302 | |
af0f0f3e | 303 | int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b) |
c74aaa39 DDO |
304 | { |
305 | return EVP_PKEY_eq(a, b); | |
306 | } | |
c74aaa39 DDO |
307 | |
308 | int EVP_PKEY_eq(const EVP_PKEY *a, const EVP_PKEY *b) | |
0f113f3e | 309 | { |
1e9101c4 RL |
310 | /* |
311 | * TODO: clean up legacy stuff from this function when legacy support | |
312 | * is gone. | |
313 | */ | |
314 | ||
315 | if (a->keymgmt != NULL || b->keymgmt != NULL) | |
8158cf20 RL |
316 | return evp_pkey_cmp_any(a, b, (SELECT_PARAMETERS |
317 | | OSSL_KEYMGMT_SELECT_PUBLIC_KEY)); | |
1e9101c4 RL |
318 | |
319 | /* All legacy keys */ | |
0f113f3e MC |
320 | if (a->type != b->type) |
321 | return -1; | |
322 | ||
1e9101c4 | 323 | if (a->ameth != NULL) { |
0f113f3e MC |
324 | int ret; |
325 | /* Compare parameters if the algorithm has them */ | |
1e9101c4 | 326 | if (a->ameth->param_cmp != NULL) { |
0f113f3e MC |
327 | ret = a->ameth->param_cmp(a, b); |
328 | if (ret <= 0) | |
329 | return ret; | |
330 | } | |
331 | ||
1e9101c4 | 332 | if (a->ameth->pub_cmp != NULL) |
0f113f3e MC |
333 | return a->ameth->pub_cmp(a, b); |
334 | } | |
335 | ||
336 | return -2; | |
337 | } | |
e6526fbf | 338 | |
1c4f340d | 339 | |
b4250010 | 340 | static EVP_PKEY *new_raw_key_int(OSSL_LIB_CTX *libctx, |
1c4f340d MC |
341 | const char *strtype, |
342 | const char *propq, | |
343 | int nidtype, | |
344 | ENGINE *e, | |
345 | const unsigned char *key, | |
346 | size_t len, | |
347 | int key_is_priv) | |
a08802ce | 348 | { |
1c4f340d MC |
349 | EVP_PKEY *pkey = NULL; |
350 | EVP_PKEY_CTX *ctx = NULL; | |
351 | const EVP_PKEY_ASN1_METHOD *ameth = NULL; | |
352 | int result = 0; | |
353 | ||
354 | # ifndef OPENSSL_NO_ENGINE | |
355 | /* Check if there is an Engine for this type */ | |
356 | if (e == NULL) { | |
357 | ENGINE *tmpe = NULL; | |
358 | ||
359 | if (strtype != NULL) | |
360 | ameth = EVP_PKEY_asn1_find_str(&tmpe, strtype, -1); | |
361 | else if (nidtype != EVP_PKEY_NONE) | |
362 | ameth = EVP_PKEY_asn1_find(&tmpe, nidtype); | |
363 | ||
364 | /* If tmpe is NULL then no engine is claiming to support this type */ | |
365 | if (tmpe == NULL) | |
366 | ameth = NULL; | |
367 | ||
368 | ENGINE_finish(tmpe); | |
369 | } | |
370 | # endif | |
a08802ce | 371 | |
1c4f340d MC |
372 | if (e == NULL && ameth == NULL) { |
373 | /* | |
374 | * No engine is claiming to support this type, so lets see if we have | |
375 | * a provider. | |
376 | */ | |
377 | ctx = EVP_PKEY_CTX_new_from_name(libctx, | |
378 | strtype != NULL ? strtype | |
379 | : OBJ_nid2sn(nidtype), | |
380 | propq); | |
4feda976 | 381 | if (ctx == NULL) |
1c4f340d | 382 | goto err; |
1c4f340d MC |
383 | /* May fail if no provider available */ |
384 | ERR_set_mark(); | |
385 | if (EVP_PKEY_key_fromdata_init(ctx) == 1) { | |
386 | OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
387 | ||
388 | ERR_clear_last_mark(); | |
389 | params[0] = OSSL_PARAM_construct_octet_string( | |
390 | key_is_priv ? OSSL_PKEY_PARAM_PRIV_KEY | |
391 | : OSSL_PKEY_PARAM_PUB_KEY, | |
392 | (void *)key, len); | |
393 | ||
394 | if (EVP_PKEY_fromdata(ctx, &pkey, params) != 1) { | |
9311d0c4 | 395 | ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED); |
1c4f340d MC |
396 | goto err; |
397 | } | |
398 | ||
399 | EVP_PKEY_CTX_free(ctx); | |
400 | ||
401 | return pkey; | |
402 | } | |
403 | ERR_pop_to_mark(); | |
404 | /* else not supported so fallback to legacy */ | |
a08802ce MC |
405 | } |
406 | ||
1c4f340d MC |
407 | /* Legacy code path */ |
408 | ||
409 | pkey = EVP_PKEY_new(); | |
410 | if (pkey == NULL) { | |
9311d0c4 | 411 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
a08802ce MC |
412 | goto err; |
413 | } | |
414 | ||
1c4f340d MC |
415 | if (!pkey_set_type(pkey, e, nidtype, strtype, -1, NULL)) { |
416 | /* EVPerr already called */ | |
a08802ce MC |
417 | goto err; |
418 | } | |
419 | ||
1c4f340d MC |
420 | if (!ossl_assert(pkey->ameth != NULL)) |
421 | goto err; | |
a08802ce | 422 | |
1c4f340d MC |
423 | if (key_is_priv) { |
424 | if (pkey->ameth->set_priv_key == NULL) { | |
9311d0c4 | 425 | ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
1c4f340d MC |
426 | goto err; |
427 | } | |
a08802ce | 428 | |
1c4f340d | 429 | if (!pkey->ameth->set_priv_key(pkey, key, len)) { |
9311d0c4 | 430 | ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED); |
1c4f340d MC |
431 | goto err; |
432 | } | |
433 | } else { | |
434 | if (pkey->ameth->set_pub_key == NULL) { | |
9311d0c4 | 435 | ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
1c4f340d MC |
436 | goto err; |
437 | } | |
a08802ce | 438 | |
1c4f340d | 439 | if (!pkey->ameth->set_pub_key(pkey, key, len)) { |
9311d0c4 | 440 | ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED); |
1c4f340d MC |
441 | goto err; |
442 | } | |
a08802ce MC |
443 | } |
444 | ||
1c4f340d MC |
445 | result = 1; |
446 | err: | |
447 | if (!result) { | |
448 | EVP_PKEY_free(pkey); | |
449 | pkey = NULL; | |
a08802ce | 450 | } |
1c4f340d MC |
451 | EVP_PKEY_CTX_free(ctx); |
452 | return pkey; | |
453 | } | |
a08802ce | 454 | |
b4250010 | 455 | EVP_PKEY *EVP_PKEY_new_raw_private_key_ex(OSSL_LIB_CTX *libctx, |
d8652be0 MC |
456 | const char *keytype, |
457 | const char *propq, | |
458 | const unsigned char *priv, size_t len) | |
1c4f340d MC |
459 | { |
460 | return new_raw_key_int(libctx, keytype, propq, EVP_PKEY_NONE, NULL, priv, | |
461 | len, 1); | |
462 | } | |
a08802ce | 463 | |
1c4f340d MC |
464 | EVP_PKEY *EVP_PKEY_new_raw_private_key(int type, ENGINE *e, |
465 | const unsigned char *priv, | |
466 | size_t len) | |
467 | { | |
468 | return new_raw_key_int(NULL, NULL, NULL, type, e, priv, len, 1); | |
469 | } | |
a08802ce | 470 | |
b4250010 | 471 | EVP_PKEY *EVP_PKEY_new_raw_public_key_ex(OSSL_LIB_CTX *libctx, |
d8652be0 MC |
472 | const char *keytype, const char *propq, |
473 | const unsigned char *pub, size_t len) | |
1c4f340d MC |
474 | { |
475 | return new_raw_key_int(libctx, keytype, propq, EVP_PKEY_NONE, NULL, pub, | |
476 | len, 0); | |
477 | } | |
478 | ||
479 | EVP_PKEY *EVP_PKEY_new_raw_public_key(int type, ENGINE *e, | |
480 | const unsigned char *pub, | |
481 | size_t len) | |
482 | { | |
483 | return new_raw_key_int(NULL, NULL, NULL, type, e, pub, len, 0); | |
a08802ce MC |
484 | } |
485 | ||
c19d8978 MC |
486 | struct raw_key_details_st |
487 | { | |
488 | unsigned char **key; | |
489 | size_t *len; | |
490 | int selection; | |
491 | }; | |
492 | ||
493 | static OSSL_CALLBACK get_raw_key_details; | |
494 | static int get_raw_key_details(const OSSL_PARAM params[], void *arg) | |
495 | { | |
496 | const OSSL_PARAM *p = NULL; | |
497 | struct raw_key_details_st *raw_key = arg; | |
498 | ||
499 | if (raw_key->selection == OSSL_KEYMGMT_SELECT_PRIVATE_KEY) { | |
500 | if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PRIV_KEY)) | |
501 | != NULL) | |
502 | return OSSL_PARAM_get_octet_string(p, (void **)raw_key->key, | |
503 | SIZE_MAX, raw_key->len); | |
504 | } else if (raw_key->selection == OSSL_KEYMGMT_SELECT_PUBLIC_KEY) { | |
505 | if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PUB_KEY)) | |
506 | != NULL) | |
507 | return OSSL_PARAM_get_octet_string(p, (void **)raw_key->key, | |
508 | SIZE_MAX, raw_key->len); | |
509 | } | |
510 | ||
511 | return 0; | |
512 | } | |
513 | ||
0d124b0a MC |
514 | int EVP_PKEY_get_raw_private_key(const EVP_PKEY *pkey, unsigned char *priv, |
515 | size_t *len) | |
516 | { | |
c19d8978 MC |
517 | if (pkey->keymgmt != NULL) { |
518 | struct raw_key_details_st raw_key; | |
519 | ||
520 | raw_key.key = priv == NULL ? NULL : &priv; | |
521 | raw_key.len = len; | |
522 | raw_key.selection = OSSL_KEYMGMT_SELECT_PRIVATE_KEY; | |
523 | ||
655f73ce RL |
524 | return evp_keymgmt_util_export(pkey, OSSL_KEYMGMT_SELECT_PRIVATE_KEY, |
525 | get_raw_key_details, &raw_key); | |
c19d8978 MC |
526 | } |
527 | ||
528 | if (pkey->ameth == NULL) { | |
9311d0c4 | 529 | ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
c19d8978 MC |
530 | return 0; |
531 | } | |
532 | ||
533 | if (pkey->ameth->get_priv_key == NULL) { | |
9311d0c4 | 534 | ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
0d124b0a MC |
535 | return 0; |
536 | } | |
537 | ||
538 | if (!pkey->ameth->get_priv_key(pkey, priv, len)) { | |
9311d0c4 | 539 | ERR_raise(ERR_LIB_EVP, EVP_R_GET_RAW_KEY_FAILED); |
0d124b0a MC |
540 | return 0; |
541 | } | |
542 | ||
543 | return 1; | |
544 | } | |
545 | ||
546 | int EVP_PKEY_get_raw_public_key(const EVP_PKEY *pkey, unsigned char *pub, | |
547 | size_t *len) | |
548 | { | |
c19d8978 MC |
549 | if (pkey->keymgmt != NULL) { |
550 | struct raw_key_details_st raw_key; | |
551 | ||
552 | raw_key.key = pub == NULL ? NULL : &pub; | |
553 | raw_key.len = len; | |
554 | raw_key.selection = OSSL_KEYMGMT_SELECT_PUBLIC_KEY; | |
555 | ||
655f73ce RL |
556 | return evp_keymgmt_util_export(pkey, OSSL_KEYMGMT_SELECT_PUBLIC_KEY, |
557 | get_raw_key_details, &raw_key); | |
c19d8978 MC |
558 | } |
559 | ||
560 | if (pkey->ameth == NULL) { | |
9311d0c4 | 561 | ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
c19d8978 MC |
562 | return 0; |
563 | } | |
564 | ||
0d124b0a | 565 | if (pkey->ameth->get_pub_key == NULL) { |
9311d0c4 | 566 | ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
0d124b0a MC |
567 | return 0; |
568 | } | |
569 | ||
570 | if (!pkey->ameth->get_pub_key(pkey, pub, len)) { | |
9311d0c4 | 571 | ERR_raise(ERR_LIB_EVP, EVP_R_GET_RAW_KEY_FAILED); |
0d124b0a MC |
572 | return 0; |
573 | } | |
574 | ||
575 | return 1; | |
576 | } | |
577 | ||
a540ef90 MC |
578 | static EVP_PKEY *new_cmac_key_int(const unsigned char *priv, size_t len, |
579 | const char *cipher_name, | |
b4250010 DMSP |
580 | const EVP_CIPHER *cipher, |
581 | OSSL_LIB_CTX *libctx, | |
a540ef90 | 582 | const char *propq, ENGINE *e) |
b3831fbb | 583 | { |
e683582b SL |
584 | # ifndef OPENSSL_NO_CMAC |
585 | # ifndef OPENSSL_NO_ENGINE | |
9a7846df | 586 | const char *engine_id = e != NULL ? ENGINE_get_id(e) : NULL; |
e683582b | 587 | # endif |
2ef9a7ac | 588 | OSSL_PARAM params[5], *p = params; |
a540ef90 MC |
589 | EVP_PKEY *pkey = NULL; |
590 | EVP_PKEY_CTX *ctx; | |
591 | ||
592 | if (cipher != NULL) | |
593 | cipher_name = EVP_CIPHER_name(cipher); | |
594 | ||
595 | if (cipher_name == NULL) { | |
9311d0c4 | 596 | ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED); |
a540ef90 MC |
597 | return NULL; |
598 | } | |
599 | ||
600 | ctx = EVP_PKEY_CTX_new_from_name(libctx, "CMAC", propq); | |
20d56d6d | 601 | if (ctx == NULL) |
a540ef90 | 602 | goto err; |
a540ef90 MC |
603 | |
604 | if (!EVP_PKEY_key_fromdata_init(ctx)) { | |
9311d0c4 | 605 | ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED); |
b3831fbb MC |
606 | goto err; |
607 | } | |
608 | ||
a540ef90 MC |
609 | *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_PRIV_KEY, |
610 | (void *)priv, len); | |
611 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_CIPHER, | |
612 | (char *)cipher_name, 0); | |
2ef9a7ac MC |
613 | if (propq != NULL) |
614 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_PROPERTIES, | |
615 | (char *)propq, 0); | |
e683582b | 616 | # ifndef OPENSSL_NO_ENGINE |
9a7846df | 617 | if (engine_id != NULL) |
a540ef90 MC |
618 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_ENGINE, |
619 | (char *)engine_id, 0); | |
e683582b | 620 | # endif |
a540ef90 | 621 | *p = OSSL_PARAM_construct_end(); |
3be06e0d | 622 | |
a540ef90 | 623 | if (!EVP_PKEY_fromdata(ctx, &pkey, params)) { |
9311d0c4 | 624 | ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED); |
b3831fbb MC |
625 | goto err; |
626 | } | |
627 | ||
b3831fbb | 628 | err: |
a540ef90 MC |
629 | EVP_PKEY_CTX_free(ctx); |
630 | ||
631 | return pkey; | |
e683582b | 632 | # else |
9311d0c4 | 633 | ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
df6d51e2 | 634 | return NULL; |
e683582b | 635 | # endif |
b3831fbb | 636 | } |
a08802ce | 637 | |
a540ef90 MC |
638 | EVP_PKEY *EVP_PKEY_new_CMAC_key(ENGINE *e, const unsigned char *priv, |
639 | size_t len, const EVP_CIPHER *cipher) | |
640 | { | |
641 | return new_cmac_key_int(priv, len, NULL, cipher, NULL, NULL, e); | |
642 | } | |
643 | ||
01b8b3c7 | 644 | int EVP_PKEY_set_type(EVP_PKEY *pkey, int type) |
0f113f3e | 645 | { |
8243d8d1 | 646 | return pkey_set_type(pkey, NULL, type, NULL, -1, NULL); |
0f113f3e | 647 | } |
01b8b3c7 DSH |
648 | |
649 | int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len) | |
0f113f3e | 650 | { |
8243d8d1 | 651 | return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, str, len, NULL); |
0f113f3e | 652 | } |
2f2e6b62 | 653 | |
14711fff | 654 | #ifndef OPENSSL_NO_DEPRECATED_3_0 |
2f2e6b62 JL |
655 | int EVP_PKEY_set_alias_type(EVP_PKEY *pkey, int type) |
656 | { | |
14711fff RL |
657 | if (!evp_pkey_is_legacy(pkey)) { |
658 | const char *name = OBJ_nid2sn(type); | |
659 | ||
660 | if (name != NULL && EVP_PKEY_is_a(pkey, name)) | |
661 | return 1; | |
662 | ||
663 | ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION); | |
664 | return 0; | |
665 | } | |
666 | ||
2f2e6b62 JL |
667 | if (pkey->type == type) { |
668 | return 1; /* it already is that type */ | |
669 | } | |
670 | ||
671 | /* | |
672 | * The application is requesting to alias this to a different pkey type, | |
673 | * but not one that resolves to the base type. | |
674 | */ | |
675 | if (EVP_PKEY_type(type) != EVP_PKEY_base_id(pkey)) { | |
9311d0c4 | 676 | ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM); |
2f2e6b62 JL |
677 | return 0; |
678 | } | |
679 | ||
680 | pkey->type = type; | |
681 | return 1; | |
682 | } | |
14711fff | 683 | #endif |
2f2e6b62 | 684 | |
e683582b | 685 | # ifndef OPENSSL_NO_ENGINE |
d19b01ad DSH |
686 | int EVP_PKEY_set1_engine(EVP_PKEY *pkey, ENGINE *e) |
687 | { | |
688 | if (e != NULL) { | |
689 | if (!ENGINE_init(e)) { | |
9311d0c4 | 690 | ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB); |
d19b01ad DSH |
691 | return 0; |
692 | } | |
693 | if (ENGINE_get_pkey_meth(e, pkey->type) == NULL) { | |
694 | ENGINE_finish(e); | |
9311d0c4 | 695 | ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM); |
d19b01ad DSH |
696 | return 0; |
697 | } | |
698 | } | |
699 | ENGINE_finish(pkey->pmeth_engine); | |
700 | pkey->pmeth_engine = e; | |
701 | return 1; | |
702 | } | |
229f7b38 DB |
703 | |
704 | ENGINE *EVP_PKEY_get0_engine(const EVP_PKEY *pkey) | |
705 | { | |
706 | return pkey->engine; | |
707 | } | |
e683582b | 708 | # endif |
01b8b3c7 | 709 | int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) |
0f113f3e | 710 | { |
f4e4382c RL |
711 | int alias = type; |
712 | ||
ad5b71be | 713 | #ifndef OPENSSL_NO_EC |
4bb73d54 | 714 | if ((key != NULL) && (EVP_PKEY_type(type) == EVP_PKEY_EC)) { |
f4e4382c RL |
715 | const EC_GROUP *group = EC_KEY_get0_group(key); |
716 | ||
717 | if (group != NULL && EC_GROUP_get_curve_name(group) == NID_sm2) | |
718 | alias = EVP_PKEY_SM2; | |
719 | } | |
ad5b71be | 720 | #endif |
f4e4382c | 721 | |
e34c66c6 | 722 | if (pkey == NULL || !EVP_PKEY_set_type(pkey, type)) |
0f113f3e | 723 | return 0; |
f4e4382c RL |
724 | if (!EVP_PKEY_set_alias_type(pkey, alias)) |
725 | return 0; | |
0f113f3e MC |
726 | pkey->pkey.ptr = key; |
727 | return (key != NULL); | |
728 | } | |
d02b48c6 | 729 | |
3aeb9348 | 730 | void *EVP_PKEY_get0(const EVP_PKEY *pkey) |
0f113f3e | 731 | { |
3c1ccfea SL |
732 | if (pkey == NULL) |
733 | return NULL; | |
acb90ba8 RL |
734 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
735 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
736 | return NULL; | |
737 | } | |
0f113f3e MC |
738 | return pkey->pkey.ptr; |
739 | } | |
db98bbc1 | 740 | |
ebad0b0b NM |
741 | const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len) |
742 | { | |
743 | ASN1_OCTET_STRING *os = NULL; | |
744 | if (pkey->type != EVP_PKEY_HMAC) { | |
9311d0c4 | 745 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_AN_HMAC_KEY); |
ebad0b0b NM |
746 | return NULL; |
747 | } | |
748 | os = EVP_PKEY_get0(pkey); | |
749 | *len = os->length; | |
750 | return os->data; | |
751 | } | |
752 | ||
e683582b | 753 | # ifndef OPENSSL_NO_POLY1305 |
52ad5b60 TS |
754 | const unsigned char *EVP_PKEY_get0_poly1305(const EVP_PKEY *pkey, size_t *len) |
755 | { | |
756 | ASN1_OCTET_STRING *os = NULL; | |
757 | if (pkey->type != EVP_PKEY_POLY1305) { | |
9311d0c4 | 758 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_POLY1305_KEY); |
52ad5b60 TS |
759 | return NULL; |
760 | } | |
761 | os = EVP_PKEY_get0(pkey); | |
762 | *len = os->length; | |
763 | return os->data; | |
764 | } | |
e683582b | 765 | # endif |
52ad5b60 | 766 | |
e683582b | 767 | # ifndef OPENSSL_NO_SIPHASH |
3f5616d7 TS |
768 | const unsigned char *EVP_PKEY_get0_siphash(const EVP_PKEY *pkey, size_t *len) |
769 | { | |
770 | ASN1_OCTET_STRING *os = NULL; | |
771 | ||
772 | if (pkey->type != EVP_PKEY_SIPHASH) { | |
9311d0c4 | 773 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_SIPHASH_KEY); |
3f5616d7 TS |
774 | return NULL; |
775 | } | |
776 | os = EVP_PKEY_get0(pkey); | |
777 | *len = os->length; | |
778 | return os->data; | |
779 | } | |
e683582b | 780 | # endif |
3f5616d7 | 781 | |
e683582b | 782 | # ifndef OPENSSL_NO_DSA |
9fdcc21f | 783 | DSA *EVP_PKEY_get0_DSA(const EVP_PKEY *pkey) |
0f113f3e | 784 | { |
acb90ba8 RL |
785 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
786 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
787 | return NULL; | |
788 | } | |
0f113f3e | 789 | if (pkey->type != EVP_PKEY_DSA) { |
9311d0c4 | 790 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_DSA_KEY); |
0f113f3e MC |
791 | return NULL; |
792 | } | |
0f113f3e | 793 | return pkey->pkey.dsa; |
f769ce3e | 794 | } |
2872dbe1 | 795 | |
b03ec3b5 SL |
796 | int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) |
797 | { | |
798 | int ret = EVP_PKEY_assign_DSA(pkey, key); | |
799 | if (ret) | |
800 | DSA_up_ref(key); | |
801 | return ret; | |
802 | } | |
2872dbe1 DSH |
803 | DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) |
804 | { | |
805 | DSA *ret = EVP_PKEY_get0_DSA(pkey); | |
806 | if (ret != NULL) | |
807 | DSA_up_ref(ret); | |
808 | return ret; | |
809 | } | |
b03ec3b5 | 810 | # endif /* OPENSSL_NO_DSA */ |
f844f9eb | 811 | #endif /* FIPS_MODULE */ |
f769ce3e | 812 | |
f844f9eb | 813 | #ifndef FIPS_MODULE |
e683582b | 814 | # ifndef OPENSSL_NO_EC |
25b16562 | 815 | static ECX_KEY *evp_pkey_get0_ECX_KEY(const EVP_PKEY *pkey, int type) |
7c664b1f RL |
816 | { |
817 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { | |
818 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
819 | return NULL; | |
820 | } | |
821 | if (EVP_PKEY_base_id(pkey) != type) { | |
822 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_ECX_KEY); | |
823 | return NULL; | |
824 | } | |
825 | return pkey->pkey.ecx; | |
826 | } | |
827 | ||
25b16562 | 828 | static ECX_KEY *evp_pkey_get1_ECX_KEY(EVP_PKEY *pkey, int type) |
7c664b1f | 829 | { |
25b16562 | 830 | ECX_KEY *ret = evp_pkey_get0_ECX_KEY(pkey, type); |
7c664b1f RL |
831 | if (ret != NULL) |
832 | ecx_key_up_ref(ret); | |
833 | return ret; | |
834 | } | |
835 | ||
836 | # define IMPLEMENT_ECX_VARIANT(NAME) \ | |
25b16562 | 837 | ECX_KEY *evp_pkey_get1_##NAME(EVP_PKEY *pkey) \ |
7c664b1f | 838 | { \ |
25b16562 | 839 | return evp_pkey_get1_ECX_KEY(pkey, EVP_PKEY_##NAME); \ |
7c664b1f RL |
840 | } |
841 | IMPLEMENT_ECX_VARIANT(X25519) | |
842 | IMPLEMENT_ECX_VARIANT(X448) | |
843 | IMPLEMENT_ECX_VARIANT(ED25519) | |
844 | IMPLEMENT_ECX_VARIANT(ED448) | |
845 | ||
e683582b | 846 | # endif |
4d94ae00 | 847 | |
5a267416 | 848 | # if !defined(OPENSSL_NO_DH) && !defined(OPENSSL_NO_DEPRECATED_3_0) |
52664f50 | 849 | |
c7cb16a8 | 850 | int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) |
52664f50 | 851 | { |
32c869ff MC |
852 | int type = DH_get0_q(key) == NULL ? EVP_PKEY_DH : EVP_PKEY_DHX; |
853 | int ret = EVP_PKEY_assign(pkey, type, key); | |
854 | ||
0f113f3e MC |
855 | if (ret) |
856 | DH_up_ref(key); | |
857 | return ret; | |
52664f50 DSH |
858 | } |
859 | ||
9fdcc21f | 860 | DH *EVP_PKEY_get0_DH(const EVP_PKEY *pkey) |
0f113f3e | 861 | { |
acb90ba8 RL |
862 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
863 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
864 | return NULL; | |
865 | } | |
0f113f3e | 866 | if (pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) { |
9311d0c4 | 867 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_DH_KEY); |
0f113f3e MC |
868 | return NULL; |
869 | } | |
0f113f3e | 870 | return pkey->pkey.dh; |
f769ce3e | 871 | } |
2872dbe1 DSH |
872 | |
873 | DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) | |
874 | { | |
875 | DH *ret = EVP_PKEY_get0_DH(pkey); | |
876 | if (ret != NULL) | |
877 | DH_up_ref(ret); | |
878 | return ret; | |
879 | } | |
e683582b | 880 | # endif |
f769ce3e | 881 | |
6b691a5c | 882 | int EVP_PKEY_type(int type) |
0f113f3e MC |
883 | { |
884 | int ret; | |
885 | const EVP_PKEY_ASN1_METHOD *ameth; | |
886 | ENGINE *e; | |
887 | ameth = EVP_PKEY_asn1_find(&e, type); | |
888 | if (ameth) | |
889 | ret = ameth->pkey_id; | |
890 | else | |
891 | ret = NID_undef; | |
e683582b | 892 | # ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 893 | ENGINE_finish(e); |
e683582b | 894 | # endif |
0f113f3e MC |
895 | return ret; |
896 | } | |
d02b48c6 | 897 | |
7f57b076 | 898 | int EVP_PKEY_id(const EVP_PKEY *pkey) |
0f113f3e MC |
899 | { |
900 | return pkey->type; | |
901 | } | |
7f57b076 DSH |
902 | |
903 | int EVP_PKEY_base_id(const EVP_PKEY *pkey) | |
0f113f3e MC |
904 | { |
905 | return EVP_PKEY_type(pkey->type); | |
906 | } | |
7f57b076 | 907 | |
50914496 RL |
908 | #ifndef FIPS_MODULE |
909 | int evp_pkey_name2type(const char *name) | |
910 | { | |
911 | /* | |
912 | * These hard coded cases are pure hackery to get around the fact | |
913 | * that names in crypto/objects/objects.txt are a mess. There is | |
914 | * no "EC", and "RSA" leads to the NID for 2.5.8.1.1, an OID that's | |
915 | * fallen out in favor of { pkcs-1 1 }, i.e. 1.2.840.113549.1.1.1, | |
916 | * the NID of which is used for EVP_PKEY_RSA. Strangely enough, | |
917 | * "DSA" is accurate... but still, better be safe and hard-code | |
918 | * names that we know. | |
919 | * On a similar topic, EVP_PKEY_type(EVP_PKEY_SM2) will result in | |
920 | * EVP_PKEY_EC, because of aliasing. | |
921 | * TODO Clean this away along with all other #legacy support. | |
922 | */ | |
923 | int type = NID_undef; | |
924 | ||
925 | if (strcasecmp(name, "RSA") == 0) | |
926 | type = EVP_PKEY_RSA; | |
927 | else if (strcasecmp(name, "RSA-PSS") == 0) | |
928 | type = EVP_PKEY_RSA_PSS; | |
929 | else if (strcasecmp(name, "EC") == 0) | |
930 | type = EVP_PKEY_EC; | |
931 | else if (strcasecmp(name, "ED25519") == 0) | |
932 | type = EVP_PKEY_ED25519; | |
933 | else if (strcasecmp(name, "ED448") == 0) | |
934 | type = EVP_PKEY_ED448; | |
935 | else if (strcasecmp(name, "X25519") == 0) | |
936 | type = EVP_PKEY_X25519; | |
937 | else if (strcasecmp(name, "X448") == 0) | |
938 | type = EVP_PKEY_X448; | |
939 | else if (strcasecmp(name, "SM2") == 0) | |
940 | type = EVP_PKEY_SM2; | |
941 | else if (strcasecmp(name, "DH") == 0) | |
942 | type = EVP_PKEY_DH; | |
943 | else if (strcasecmp(name, "X9.42 DH") == 0) | |
944 | type = EVP_PKEY_DHX; | |
f23e4a17 TM |
945 | else if (strcasecmp(name, "DHX") == 0) |
946 | type = EVP_PKEY_DHX; | |
50914496 RL |
947 | else if (strcasecmp(name, "DSA") == 0) |
948 | type = EVP_PKEY_DSA; | |
949 | ||
950 | if (type == NID_undef) | |
951 | type = EVP_PKEY_type(OBJ_sn2nid(name)); | |
952 | if (type == NID_undef) | |
953 | type = EVP_PKEY_type(OBJ_ln2nid(name)); | |
954 | ||
955 | return type; | |
956 | } | |
957 | #endif | |
958 | ||
4f76d62f RL |
959 | int EVP_PKEY_is_a(const EVP_PKEY *pkey, const char *name) |
960 | { | |
f844f9eb | 961 | #ifndef FIPS_MODULE |
4f76d62f | 962 | if (pkey->keymgmt == NULL) { |
50914496 | 963 | int type = evp_pkey_name2type(name); |
4f76d62f | 964 | |
50914496 | 965 | return pkey->type == type; |
4f76d62f RL |
966 | } |
967 | #endif | |
968 | return EVP_KEYMGMT_is_a(pkey->keymgmt, name); | |
969 | } | |
970 | ||
ae12eac0 RL |
971 | void EVP_PKEY_typenames_do_all(const EVP_PKEY *pkey, |
972 | void (*fn)(const char *name, void *data), | |
973 | void *data) | |
974 | { | |
975 | if (!evp_pkey_is_typed(pkey)) | |
976 | return; | |
977 | ||
978 | if (!evp_pkey_is_provided(pkey)) { | |
979 | const char *name = OBJ_nid2sn(EVP_PKEY_id(pkey)); | |
980 | ||
981 | fn(name, data); | |
982 | return; | |
983 | } | |
984 | EVP_KEYMGMT_names_do_all(pkey->keymgmt, fn, data); | |
985 | } | |
986 | ||
4f76d62f RL |
987 | int EVP_PKEY_can_sign(const EVP_PKEY *pkey) |
988 | { | |
989 | if (pkey->keymgmt == NULL) { | |
990 | switch (EVP_PKEY_base_id(pkey)) { | |
991 | case EVP_PKEY_RSA: | |
992 | return 1; | |
993 | #ifndef OPENSSL_NO_DSA | |
994 | case EVP_PKEY_DSA: | |
995 | return 1; | |
996 | #endif | |
997 | #ifndef OPENSSL_NO_EC | |
998 | case EVP_PKEY_ED25519: | |
999 | case EVP_PKEY_ED448: | |
1000 | return 1; | |
1001 | case EVP_PKEY_EC: /* Including SM2 */ | |
1002 | return EC_KEY_can_sign(pkey->pkey.ec); | |
1003 | #endif | |
1004 | default: | |
1005 | break; | |
1006 | } | |
1007 | } else { | |
1008 | const OSSL_PROVIDER *prov = EVP_KEYMGMT_provider(pkey->keymgmt); | |
a829b735 | 1009 | OSSL_LIB_CTX *libctx = ossl_provider_libctx(prov); |
4f76d62f RL |
1010 | const char *supported_sig = |
1011 | pkey->keymgmt->query_operation_name != NULL | |
1012 | ? pkey->keymgmt->query_operation_name(OSSL_OP_SIGNATURE) | |
1013 | : evp_first_name(prov, pkey->keymgmt->name_id); | |
1014 | EVP_SIGNATURE *signature = NULL; | |
1015 | ||
1016 | signature = EVP_SIGNATURE_fetch(libctx, supported_sig, NULL); | |
1017 | if (signature != NULL) { | |
1018 | EVP_SIGNATURE_free(signature); | |
1019 | return 1; | |
1020 | } | |
1021 | } | |
1022 | return 0; | |
1023 | } | |
d02b48c6 | 1024 | |
f1299839 RL |
1025 | static int print_reset_indent(BIO **out, int pop_f_prefix, long saved_indent) |
1026 | { | |
1027 | BIO_set_indent(*out, saved_indent); | |
1028 | if (pop_f_prefix) { | |
1029 | BIO *next = BIO_pop(*out); | |
1030 | ||
1031 | BIO_free(*out); | |
1032 | *out = next; | |
1033 | } | |
1034 | return 1; | |
1035 | } | |
1036 | ||
1037 | static int print_set_indent(BIO **out, int *pop_f_prefix, long *saved_indent, | |
1038 | long indent) | |
1039 | { | |
1040 | *pop_f_prefix = 0; | |
1041 | *saved_indent = 0; | |
1042 | if (indent > 0) { | |
1043 | long i = BIO_get_indent(*out); | |
1044 | ||
1045 | *saved_indent = (i < 0 ? 0 : i); | |
1046 | if (BIO_set_indent(*out, indent) <= 0) { | |
1047 | if ((*out = BIO_push(BIO_new(BIO_f_prefix()), *out)) == NULL) | |
1048 | return 0; | |
1049 | *pop_f_prefix = 1; | |
1050 | } | |
1051 | if (BIO_set_indent(*out, indent) <= 0) { | |
1052 | print_reset_indent(out, *pop_f_prefix, *saved_indent); | |
1053 | return 0; | |
1054 | } | |
1055 | } | |
1056 | return 1; | |
1057 | } | |
1058 | ||
35208f36 | 1059 | static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent, |
0f113f3e MC |
1060 | const char *kstr) |
1061 | { | |
5310a4e6 P |
1062 | return BIO_indent(out, indent, 128) |
1063 | && BIO_printf(out, "%s algorithm \"%s\" unsupported\n", | |
1064 | kstr, OBJ_nid2ln(pkey->type)) > 0; | |
0f113f3e | 1065 | } |
35208f36 | 1066 | |
f1299839 | 1067 | static int print_pkey(const EVP_PKEY *pkey, BIO *out, int indent, |
97bb8dff | 1068 | int selection /* For provided encoding */, |
ece9304c | 1069 | const char *propquery /* For provided encoding */, |
f1299839 RL |
1070 | int (*legacy_print)(BIO *out, const EVP_PKEY *pkey, |
1071 | int indent, ASN1_PCTX *pctx), | |
1072 | ASN1_PCTX *legacy_pctx /* For legacy print */) | |
0f113f3e | 1073 | { |
f1299839 RL |
1074 | int pop_f_prefix; |
1075 | long saved_indent; | |
ece9304c | 1076 | OSSL_ENCODER_CTX *ctx = NULL; |
f1299839 RL |
1077 | int ret = -2; /* default to unsupported */ |
1078 | ||
1079 | if (!print_set_indent(&out, &pop_f_prefix, &saved_indent, indent)) | |
1080 | return 0; | |
54c1711f | 1081 | |
4227e504 | 1082 | ctx = OSSL_ENCODER_CTX_new_by_EVP_PKEY(pkey, selection, "TEXT", NULL, |
b03da688 | 1083 | propquery); |
97bb8dff | 1084 | if (OSSL_ENCODER_CTX_get_num_encoders(ctx) != 0) |
ece9304c RL |
1085 | ret = OSSL_ENCODER_to_bio(ctx, out); |
1086 | OSSL_ENCODER_CTX_free(ctx); | |
54c1711f RL |
1087 | |
1088 | if (ret != -2) | |
f1299839 | 1089 | goto end; |
54c1711f RL |
1090 | |
1091 | /* legacy fallback */ | |
f1299839 RL |
1092 | if (legacy_print != NULL) |
1093 | ret = legacy_print(out, pkey, 0, legacy_pctx); | |
1094 | else | |
1095 | ret = unsup_alg(out, pkey, 0, "Public Key"); | |
0f113f3e | 1096 | |
f1299839 RL |
1097 | end: |
1098 | print_reset_indent(&out, pop_f_prefix, saved_indent); | |
1099 | return ret; | |
1100 | } | |
1101 | ||
1102 | int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, | |
1103 | int indent, ASN1_PCTX *pctx) | |
1104 | { | |
b03da688 | 1105 | return print_pkey(pkey, out, indent, EVP_PKEY_PUBLIC_KEY, NULL, |
f1299839 RL |
1106 | (pkey->ameth != NULL ? pkey->ameth->pub_print : NULL), |
1107 | pctx); | |
0f113f3e | 1108 | } |
35208f36 DSH |
1109 | |
1110 | int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
1111 | int indent, ASN1_PCTX *pctx) |
1112 | { | |
b03da688 | 1113 | return print_pkey(pkey, out, indent, EVP_PKEY_KEYPAIR, NULL, |
f1299839 RL |
1114 | (pkey->ameth != NULL ? pkey->ameth->priv_print : NULL), |
1115 | pctx); | |
0f113f3e | 1116 | } |
35208f36 DSH |
1117 | |
1118 | int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
1119 | int indent, ASN1_PCTX *pctx) |
1120 | { | |
b03da688 | 1121 | return print_pkey(pkey, out, indent, EVP_PKEY_KEY_PARAMETERS, NULL, |
f1299839 RL |
1122 | (pkey->ameth != NULL ? pkey->ameth->param_print : NULL), |
1123 | pctx); | |
0f113f3e | 1124 | } |
03919683 | 1125 | |
fc52ae8c | 1126 | static void mdname2nid(const char *mdname, void *data) |
5060cd5f MC |
1127 | { |
1128 | int *nid = (int *)data; | |
1129 | ||
1130 | if (*nid != NID_undef) | |
1131 | return; | |
1132 | ||
1133 | *nid = OBJ_sn2nid(mdname); | |
1134 | if (*nid == NID_undef) | |
1135 | *nid = OBJ_ln2nid(mdname); | |
1136 | } | |
1137 | ||
ead0d234 RL |
1138 | static int legacy_asn1_ctrl_to_param(EVP_PKEY *pkey, int op, |
1139 | int arg1, void *arg2) | |
1140 | { | |
3c6ed955 | 1141 | if (pkey->keymgmt == NULL) |
ead0d234 RL |
1142 | return 0; |
1143 | switch (op) { | |
1144 | case ASN1_PKEY_CTRL_DEFAULT_MD_NID: | |
1145 | { | |
1146 | char mdname[80] = ""; | |
ead0d234 RL |
1147 | int rv = EVP_PKEY_get_default_digest_name(pkey, mdname, |
1148 | sizeof(mdname)); | |
1149 | ||
90ef39f4 | 1150 | if (rv > 0) { |
5060cd5f MC |
1151 | int mdnum; |
1152 | OSSL_LIB_CTX *libctx = ossl_provider_libctx(pkey->keymgmt->prov); | |
1153 | /* Make sure the MD is in the namemap if available */ | |
1154 | EVP_MD *md = EVP_MD_fetch(libctx, mdname, NULL); | |
1155 | OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx); | |
1156 | int nid = NID_undef; | |
1157 | ||
1158 | /* | |
1159 | * The only reason to fetch the MD was to make sure it is in the | |
1160 | * namemap. We can immediately free it. | |
1161 | */ | |
1162 | EVP_MD_free(md); | |
1163 | mdnum = ossl_namemap_name2num(namemap, mdname); | |
1164 | if (mdnum == 0) | |
1165 | return 0; | |
1166 | ||
1167 | /* | |
1168 | * We have the namemap number - now we need to find the | |
1169 | * associated nid | |
1170 | */ | |
fc52ae8c | 1171 | ossl_namemap_doall_names(namemap, mdnum, mdname2nid, &nid); |
90ef39f4 RL |
1172 | *(int *)arg2 = nid; |
1173 | } | |
1174 | return rv; | |
ead0d234 RL |
1175 | } |
1176 | default: | |
1177 | return -2; | |
1178 | } | |
1179 | } | |
1180 | ||
5d6aaf8a | 1181 | static int evp_pkey_asn1_ctrl(EVP_PKEY *pkey, int op, int arg1, void *arg2) |
0f113f3e | 1182 | { |
ead0d234 RL |
1183 | if (pkey->ameth == NULL) |
1184 | return legacy_asn1_ctrl_to_param(pkey, op, arg1, arg2); | |
1185 | if (pkey->ameth->pkey_ctrl == NULL) | |
0f113f3e | 1186 | return -2; |
5d6aaf8a DSH |
1187 | return pkey->ameth->pkey_ctrl(pkey, op, arg1, arg2); |
1188 | } | |
1189 | ||
1190 | int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid) | |
1191 | { | |
1192 | return evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 0, pnid); | |
1193 | } | |
1194 | ||
ead0d234 RL |
1195 | int EVP_PKEY_get_default_digest_name(EVP_PKEY *pkey, |
1196 | char *mdname, size_t mdname_sz) | |
1197 | { | |
3b924da0 RL |
1198 | if (pkey->ameth == NULL) |
1199 | return evp_keymgmt_util_get_deflt_digest_name(pkey->keymgmt, | |
1200 | pkey->keydata, | |
1201 | mdname, mdname_sz); | |
ead0d234 RL |
1202 | |
1203 | { | |
1204 | int nid = NID_undef; | |
1205 | int rv = EVP_PKEY_get_default_digest_nid(pkey, &nid); | |
1206 | const char *name = rv > 0 ? OBJ_nid2sn(nid) : NULL; | |
1207 | ||
1208 | if (rv > 0) | |
1209 | OPENSSL_strlcpy(mdname, name, mdname_sz); | |
1210 | return rv; | |
1211 | } | |
1212 | } | |
1213 | ||
88bddad4 RL |
1214 | int EVP_PKEY_get_group_name(const EVP_PKEY *pkey, char *gname, size_t gname_sz, |
1215 | size_t *gname_len) | |
1216 | { | |
1217 | if (evp_pkey_is_legacy(pkey)) { | |
1218 | const char *name = NULL; | |
1219 | ||
1220 | switch (EVP_PKEY_base_id(pkey)) { | |
1221 | #ifndef OPENSSL_NO_EC | |
1222 | case EVP_PKEY_EC: | |
1223 | { | |
82a46200 TM |
1224 | const EC_GROUP *grp = EC_KEY_get0_group(EVP_PKEY_get0_EC_KEY(pkey)); |
1225 | int nid = NID_undef; | |
88bddad4 | 1226 | |
82a46200 TM |
1227 | if (grp != NULL) |
1228 | nid = EC_GROUP_get_curve_name(grp); | |
88bddad4 RL |
1229 | if (nid != NID_undef) |
1230 | name = ec_curve_nid2name(nid); | |
1231 | } | |
1232 | break; | |
1233 | #endif | |
1234 | #ifndef OPENSSL_NO_DH | |
1235 | case EVP_PKEY_DH: | |
1236 | { | |
1237 | DH *dh = EVP_PKEY_get0_DH(pkey); | |
1238 | int uid = DH_get_nid(dh); | |
1239 | ||
c829c23b RL |
1240 | if (uid != NID_undef) { |
1241 | const DH_NAMED_GROUP *dh_group = | |
1242 | ossl_ffc_uid_to_dh_named_group(uid); | |
1243 | ||
1244 | name = ossl_ffc_named_group_get_name(dh_group); | |
1245 | } | |
88bddad4 RL |
1246 | } |
1247 | break; | |
1248 | #endif | |
1249 | default: | |
1250 | break; | |
1251 | } | |
1252 | ||
1253 | if (gname_len != NULL) | |
1254 | *gname_len = (name == NULL ? 0 : strlen(name)); | |
1255 | if (name != NULL) { | |
1256 | if (gname != NULL) | |
1257 | OPENSSL_strlcpy(gname, name, gname_sz); | |
1258 | return 1; | |
1259 | } | |
1260 | } else if (evp_pkey_is_provided(pkey)) { | |
1261 | if (EVP_PKEY_get_utf8_string_param(pkey, OSSL_PKEY_PARAM_GROUP_NAME, | |
1262 | gname, gname_sz, gname_len)) | |
1263 | return 1; | |
1264 | } else { | |
1265 | ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_KEY); | |
1266 | return 0; | |
1267 | } | |
1268 | ||
1269 | ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_KEY_TYPE); | |
1270 | return 0; | |
1271 | } | |
1272 | ||
ecbb2fca DW |
1273 | int EVP_PKEY_supports_digest_nid(EVP_PKEY *pkey, int nid) |
1274 | { | |
1275 | int rv, default_nid; | |
1276 | ||
1277 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SUPPORTS_MD_NID, nid, NULL); | |
1278 | if (rv == -2) { | |
1279 | /* | |
1280 | * If there is a mandatory default digest and this isn't it, then | |
1281 | * the answer is 'no'. | |
1282 | */ | |
1283 | rv = EVP_PKEY_get_default_digest_nid(pkey, &default_nid); | |
1284 | if (rv == 2) | |
1285 | return (nid == default_nid); | |
1286 | /* zero is an error from EVP_PKEY_get_default_digest_nid() */ | |
1287 | if (rv == 0) | |
1288 | return -1; | |
1289 | } | |
1290 | return rv; | |
1291 | } | |
1292 | ||
5ac8fb58 MC |
1293 | int EVP_PKEY_set1_encoded_public_key(EVP_PKEY *pkey, const unsigned char *pub, |
1294 | size_t publen) | |
5d6aaf8a | 1295 | { |
6a9bd929 MC |
1296 | if (pkey->ameth == NULL) { |
1297 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
1298 | ||
1299 | if (pkey->keymgmt == NULL || pkey->keydata == NULL) | |
1300 | return 0; | |
1301 | ||
1302 | params[0] = | |
5ac8fb58 MC |
1303 | OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, |
1304 | (unsigned char *)pub, publen); | |
6a9bd929 MC |
1305 | return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params); |
1306 | } | |
1307 | ||
5ac8fb58 | 1308 | if (publen > INT_MAX) |
5d6aaf8a | 1309 | return 0; |
5ac8fb58 MC |
1310 | /* Historically this function was EVP_PKEY_set1_tls_encodedpoint */ |
1311 | if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, publen, | |
1312 | (void *)pub) <= 0) | |
5d6aaf8a DSH |
1313 | return 0; |
1314 | return 1; | |
1315 | } | |
1316 | ||
5ac8fb58 | 1317 | size_t EVP_PKEY_get1_encoded_public_key(EVP_PKEY *pkey, unsigned char **ppub) |
5d6aaf8a DSH |
1318 | { |
1319 | int rv; | |
6a9bd929 MC |
1320 | |
1321 | if (pkey->ameth == NULL) { | |
1322 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
1323 | ||
1324 | if (pkey->keymgmt == NULL || pkey->keydata == NULL) | |
1325 | return 0; | |
1326 | ||
1327 | params[0] = | |
5ac8fb58 | 1328 | OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, |
6a9bd929 MC |
1329 | NULL, 0); |
1330 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) | |
1331 | return 0; | |
1332 | ||
5ac8fb58 MC |
1333 | *ppub = OPENSSL_malloc(params[0].return_size); |
1334 | if (*ppub == NULL) | |
6a9bd929 MC |
1335 | return 0; |
1336 | ||
1337 | params[0] = | |
5ac8fb58 MC |
1338 | OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, |
1339 | *ppub, params[0].return_size); | |
6a9bd929 MC |
1340 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) |
1341 | return 0; | |
1342 | ||
1343 | return params[0].return_size; | |
1344 | } | |
1345 | ||
1346 | ||
5ac8fb58 | 1347 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppub); |
5d6aaf8a DSH |
1348 | if (rv <= 0) |
1349 | return 0; | |
1350 | return rv; | |
0f113f3e | 1351 | } |
e683582b | 1352 | |
f844f9eb | 1353 | #endif /* FIPS_MODULE */ |
e683582b | 1354 | |
f844f9eb | 1355 | /*- All methods below can also be used in FIPS_MODULE */ |
e683582b | 1356 | |
a8154452 RL |
1357 | /* |
1358 | * This reset function must be used very carefully, as it literally throws | |
1359 | * away everything in an EVP_PKEY without freeing them, and may cause leaks | |
8dc34b1f | 1360 | * of memory, what have you. |
a8154452 RL |
1361 | * The only reason we have this is to have the same code for EVP_PKEY_new() |
1362 | * and evp_pkey_downgrade(). | |
1363 | */ | |
4ce1025a RL |
1364 | static int evp_pkey_reset_unlocked(EVP_PKEY *pk) |
1365 | { | |
1366 | if (pk == NULL) | |
1367 | return 0; | |
1368 | ||
8dc34b1f DB |
1369 | if (pk->lock != NULL) { |
1370 | const size_t offset = (unsigned char *)&pk->lock - (unsigned char *)pk; | |
1371 | ||
1372 | memset(pk, 0, offset); | |
1373 | memset((unsigned char *)pk + offset + sizeof(pk->lock), | |
1374 | 0, | |
1375 | sizeof(*pk) - offset - sizeof(pk->lock)); | |
1376 | } | |
1377 | /* EVP_PKEY_new uses zalloc so no need to call memset if pk->lock is NULL */ | |
1378 | ||
4ce1025a RL |
1379 | pk->type = EVP_PKEY_NONE; |
1380 | pk->save_type = EVP_PKEY_NONE; | |
1381 | pk->references = 1; | |
1382 | pk->save_parameters = 1; | |
a8154452 | 1383 | |
4ce1025a RL |
1384 | return 1; |
1385 | } | |
1386 | ||
e683582b SL |
1387 | EVP_PKEY *EVP_PKEY_new(void) |
1388 | { | |
1389 | EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret)); | |
1390 | ||
1391 | if (ret == NULL) { | |
9311d0c4 | 1392 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
e683582b SL |
1393 | return NULL; |
1394 | } | |
4ce1025a RL |
1395 | |
1396 | if (!evp_pkey_reset_unlocked(ret)) | |
1397 | goto err; | |
1398 | ||
8dc34b1f DB |
1399 | ret->lock = CRYPTO_THREAD_lock_new(); |
1400 | if (ret->lock == NULL) { | |
1401 | EVPerr(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
1402 | goto err; | |
1403 | } | |
1404 | ||
f844f9eb | 1405 | #ifndef FIPS_MODULE |
ff1f7cde | 1406 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, ret, &ret->ex_data)) { |
9311d0c4 | 1407 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
ff1f7cde | 1408 | goto err; |
e683582b | 1409 | } |
ff1f7cde | 1410 | #endif |
e683582b | 1411 | return ret; |
ff1f7cde AT |
1412 | |
1413 | err: | |
1414 | CRYPTO_THREAD_lock_free(ret->lock); | |
1415 | OPENSSL_free(ret); | |
1416 | return NULL; | |
e683582b SL |
1417 | } |
1418 | ||
8243d8d1 RL |
1419 | /* |
1420 | * Setup a public key management method. | |
1421 | * | |
1422 | * For legacy keys, either |type| or |str| is expected to have the type | |
1423 | * information. In this case, the setup consists of finding an ASN1 method | |
1424 | * and potentially an ENGINE, and setting those fields in |pkey|. | |
1425 | * | |
1426 | * For provider side keys, |keymgmt| is expected to be non-NULL. In this | |
1427 | * case, the setup consists of setting the |keymgmt| field in |pkey|. | |
1428 | * | |
1429 | * If pkey is NULL just return 1 or 0 if the key management method exists. | |
1430 | */ | |
1431 | ||
1432 | static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str, | |
1433 | int len, EVP_KEYMGMT *keymgmt) | |
1434 | { | |
f844f9eb | 1435 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1436 | const EVP_PKEY_ASN1_METHOD *ameth = NULL; |
1437 | ENGINE **eptr = (e == NULL) ? &e : NULL; | |
1438 | #endif | |
1439 | ||
1440 | /* | |
1441 | * The setups can't set both legacy and provider side methods. | |
1442 | * It is forbidden | |
1443 | */ | |
1444 | if (!ossl_assert(type == EVP_PKEY_NONE || keymgmt == NULL) | |
1445 | || !ossl_assert(e == NULL || keymgmt == NULL)) { | |
1446 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1447 | return 0; | |
1448 | } | |
1449 | ||
1450 | if (pkey != NULL) { | |
1451 | int free_it = 0; | |
1452 | ||
f844f9eb | 1453 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1454 | free_it = free_it || pkey->pkey.ptr != NULL; |
1455 | #endif | |
1456 | free_it = free_it || pkey->keydata != NULL; | |
1457 | if (free_it) | |
1458 | evp_pkey_free_it(pkey); | |
f844f9eb | 1459 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1460 | /* |
1461 | * If key type matches and a method exists then this lookup has | |
1462 | * succeeded once so just indicate success. | |
1463 | */ | |
1464 | if (pkey->type != EVP_PKEY_NONE | |
1465 | && type == pkey->save_type | |
1466 | && pkey->ameth != NULL) | |
1467 | return 1; | |
1468 | # ifndef OPENSSL_NO_ENGINE | |
1469 | /* If we have ENGINEs release them */ | |
1470 | ENGINE_finish(pkey->engine); | |
1471 | pkey->engine = NULL; | |
1472 | ENGINE_finish(pkey->pmeth_engine); | |
1473 | pkey->pmeth_engine = NULL; | |
1474 | # endif | |
1475 | #endif | |
1476 | } | |
f844f9eb | 1477 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1478 | if (str != NULL) |
1479 | ameth = EVP_PKEY_asn1_find_str(eptr, str, len); | |
1480 | else if (type != EVP_PKEY_NONE) | |
1481 | ameth = EVP_PKEY_asn1_find(eptr, type); | |
1482 | # ifndef OPENSSL_NO_ENGINE | |
1483 | if (pkey == NULL && eptr != NULL) | |
1484 | ENGINE_finish(e); | |
1485 | # endif | |
1486 | #endif | |
1487 | ||
1488 | ||
1489 | { | |
1490 | int check = 1; | |
1491 | ||
f844f9eb | 1492 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1493 | check = check && ameth == NULL; |
1494 | #endif | |
1495 | check = check && keymgmt == NULL; | |
1496 | if (check) { | |
9311d0c4 | 1497 | ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM); |
8243d8d1 RL |
1498 | return 0; |
1499 | } | |
1500 | } | |
1501 | if (pkey != NULL) { | |
1502 | if (keymgmt != NULL && !EVP_KEYMGMT_up_ref(keymgmt)) { | |
1503 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1504 | return 0; | |
1505 | } | |
1506 | ||
1507 | pkey->keymgmt = keymgmt; | |
1508 | ||
1509 | pkey->save_type = type; | |
1510 | pkey->type = type; | |
1511 | ||
f844f9eb | 1512 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1513 | /* |
1514 | * If the internal "origin" key is provider side, don't save |ameth|. | |
1515 | * The main reason is that |ameth| is one factor to detect that the | |
1516 | * internal "origin" key is a legacy one. | |
1517 | */ | |
1518 | if (keymgmt == NULL) | |
1519 | pkey->ameth = ameth; | |
1520 | pkey->engine = e; | |
1521 | ||
1522 | /* | |
5e5bc836 RL |
1523 | * The EVP_PKEY_ASN1_METHOD |pkey_id| retains its legacy key purpose |
1524 | * for any key type that has a legacy implementation, regardless of | |
1525 | * if the internal key is a legacy or a provider side one. When | |
1526 | * there is no legacy implementation for the key, the type becomes | |
1527 | * EVP_PKEY_KEYMGMT, which indicates that one should be cautious | |
1528 | * with functions that expect legacy internal keys. | |
8243d8d1 | 1529 | */ |
5e5bc836 RL |
1530 | if (ameth != NULL) |
1531 | pkey->type = ameth->pkey_id; | |
1532 | else | |
1533 | pkey->type = EVP_PKEY_KEYMGMT; | |
8243d8d1 RL |
1534 | #endif |
1535 | } | |
1536 | return 1; | |
1537 | } | |
1538 | ||
f844f9eb | 1539 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1540 | static void find_ameth(const char *name, void *data) |
1541 | { | |
1542 | const char **str = data; | |
1543 | ||
1544 | /* | |
1545 | * The error messages from pkey_set_type() are uninteresting here, | |
1546 | * and misleading. | |
1547 | */ | |
1548 | ERR_set_mark(); | |
1549 | ||
1550 | if (pkey_set_type(NULL, NULL, EVP_PKEY_NONE, name, strlen(name), | |
1551 | NULL)) { | |
1552 | if (str[0] == NULL) | |
1553 | str[0] = name; | |
1554 | else if (str[1] == NULL) | |
1555 | str[1] = name; | |
1556 | } | |
1557 | ||
1558 | ERR_pop_to_mark(); | |
1559 | } | |
1560 | #endif | |
1561 | ||
1562 | int EVP_PKEY_set_type_by_keymgmt(EVP_PKEY *pkey, EVP_KEYMGMT *keymgmt) | |
1563 | { | |
f844f9eb | 1564 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1565 | # define EVP_PKEY_TYPE_STR str[0] |
1566 | # define EVP_PKEY_TYPE_STRLEN (str[0] == NULL ? -1 : (int)strlen(str[0])) | |
1567 | /* | |
1568 | * Find at most two strings that have an associated EVP_PKEY_ASN1_METHOD | |
1569 | * Ideally, only one should be found. If two (or more) are found, the | |
1570 | * match is ambiguous. This should never happen, but... | |
1571 | */ | |
1572 | const char *str[2] = { NULL, NULL }; | |
1573 | ||
1574 | EVP_KEYMGMT_names_do_all(keymgmt, find_ameth, &str); | |
1575 | if (str[1] != NULL) { | |
1576 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1577 | return 0; | |
1578 | } | |
1579 | #else | |
1580 | # define EVP_PKEY_TYPE_STR NULL | |
1581 | # define EVP_PKEY_TYPE_STRLEN -1 | |
1582 | #endif | |
1583 | return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, | |
1584 | EVP_PKEY_TYPE_STR, EVP_PKEY_TYPE_STRLEN, | |
1585 | keymgmt); | |
1586 | ||
1587 | #undef EVP_PKEY_TYPE_STR | |
1588 | #undef EVP_PKEY_TYPE_STRLEN | |
1589 | } | |
1590 | ||
e683582b SL |
1591 | int EVP_PKEY_up_ref(EVP_PKEY *pkey) |
1592 | { | |
1593 | int i; | |
1594 | ||
1595 | if (CRYPTO_UP_REF(&pkey->references, &i, pkey->lock) <= 0) | |
1596 | return 0; | |
1597 | ||
1598 | REF_PRINT_COUNT("EVP_PKEY", pkey); | |
1599 | REF_ASSERT_ISNT(i < 2); | |
1600 | return ((i > 1) ? 1 : 0); | |
1601 | } | |
1602 | ||
f844f9eb | 1603 | #ifndef FIPS_MODULE |
62924755 | 1604 | void evp_pkey_free_legacy(EVP_PKEY *x) |
badf51c8 RL |
1605 | { |
1606 | if (x->ameth != NULL) { | |
ff3b59e1 | 1607 | if (x->ameth->pkey_free != NULL) |
badf51c8 RL |
1608 | x->ameth->pkey_free(x); |
1609 | x->pkey.ptr = NULL; | |
badf51c8 RL |
1610 | } |
1611 | # ifndef OPENSSL_NO_ENGINE | |
1612 | ENGINE_finish(x->engine); | |
1613 | x->engine = NULL; | |
1614 | ENGINE_finish(x->pmeth_engine); | |
1615 | x->pmeth_engine = NULL; | |
1616 | # endif | |
badf51c8 | 1617 | } |
f844f9eb | 1618 | #endif /* FIPS_MODULE */ |
badf51c8 | 1619 | |
e683582b SL |
1620 | static void evp_pkey_free_it(EVP_PKEY *x) |
1621 | { | |
1622 | /* internal function; x is never NULL */ | |
1623 | ||
3c6ed955 | 1624 | evp_keymgmt_util_clear_operation_cache(x); |
f844f9eb | 1625 | #ifndef FIPS_MODULE |
badf51c8 RL |
1626 | evp_pkey_free_legacy(x); |
1627 | #endif | |
e683582b | 1628 | |
3c6ed955 RL |
1629 | if (x->keymgmt != NULL) { |
1630 | evp_keymgmt_freedata(x->keymgmt, x->keydata); | |
1631 | EVP_KEYMGMT_free(x->keymgmt); | |
1632 | x->keymgmt = NULL; | |
1633 | x->keydata = NULL; | |
1634 | } | |
5e5bc836 | 1635 | x->type = EVP_PKEY_NONE; |
e683582b SL |
1636 | } |
1637 | ||
1638 | void EVP_PKEY_free(EVP_PKEY *x) | |
1639 | { | |
1640 | int i; | |
1641 | ||
1642 | if (x == NULL) | |
1643 | return; | |
1644 | ||
1645 | CRYPTO_DOWN_REF(&x->references, &i, x->lock); | |
1646 | REF_PRINT_COUNT("EVP_PKEY", x); | |
1647 | if (i > 0) | |
1648 | return; | |
1649 | REF_ASSERT_ISNT(i < 0); | |
1650 | evp_pkey_free_it(x); | |
f844f9eb | 1651 | #ifndef FIPS_MODULE |
ff1f7cde AT |
1652 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, x, &x->ex_data); |
1653 | #endif | |
e683582b | 1654 | CRYPTO_THREAD_lock_free(x->lock); |
f844f9eb | 1655 | #ifndef FIPS_MODULE |
e683582b SL |
1656 | sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free); |
1657 | #endif | |
1658 | OPENSSL_free(x); | |
1659 | } | |
1660 | ||
e683582b SL |
1661 | int EVP_PKEY_size(const EVP_PKEY *pkey) |
1662 | { | |
adc9f731 RL |
1663 | int size = 0; |
1664 | ||
6508e858 | 1665 | if (pkey != NULL) { |
adc9f731 | 1666 | size = pkey->cache.size; |
f844f9eb | 1667 | #ifndef FIPS_MODULE |
adc9f731 RL |
1668 | if (pkey->ameth != NULL && pkey->ameth->pkey_size != NULL) |
1669 | size = pkey->ameth->pkey_size(pkey); | |
1670 | #endif | |
6508e858 | 1671 | } |
030da844 | 1672 | return size < 0 ? 0 : size; |
e683582b | 1673 | } |
f6aa5774 | 1674 | |
b4250010 | 1675 | void *evp_pkey_export_to_provider(EVP_PKEY *pk, OSSL_LIB_CTX *libctx, |
3c6ed955 RL |
1676 | EVP_KEYMGMT **keymgmt, |
1677 | const char *propquery) | |
f6aa5774 RL |
1678 | { |
1679 | EVP_KEYMGMT *allocated_keymgmt = NULL; | |
1680 | EVP_KEYMGMT *tmp_keymgmt = NULL; | |
b305452f | 1681 | void *keydata = NULL; |
adc9f731 | 1682 | int check; |
f6aa5774 RL |
1683 | |
1684 | if (pk == NULL) | |
1685 | return NULL; | |
1686 | ||
adc9f731 RL |
1687 | /* No key data => nothing to export */ |
1688 | check = 1; | |
f844f9eb | 1689 | #ifndef FIPS_MODULE |
adc9f731 RL |
1690 | check = check && pk->pkey.ptr == NULL; |
1691 | #endif | |
1692 | check = check && pk->keydata == NULL; | |
1693 | if (check) | |
1694 | return NULL; | |
1695 | ||
f844f9eb | 1696 | #ifndef FIPS_MODULE |
3f7ce7f1 | 1697 | if (pk->pkey.ptr != NULL) { |
3f7ce7f1 | 1698 | /* |
3c6ed955 RL |
1699 | * If the legacy key doesn't have an dirty counter or export function, |
1700 | * give up | |
3f7ce7f1 | 1701 | */ |
3c6ed955 RL |
1702 | if (pk->ameth->dirty_cnt == NULL || pk->ameth->export_to == NULL) |
1703 | return NULL; | |
3f7ce7f1 RL |
1704 | } |
1705 | #endif | |
1706 | ||
3c6ed955 RL |
1707 | if (keymgmt != NULL) { |
1708 | tmp_keymgmt = *keymgmt; | |
1709 | *keymgmt = NULL; | |
1710 | } | |
1711 | ||
4b9e90f4 RL |
1712 | /* |
1713 | * If no keymgmt was given or found, get a default keymgmt. We do so by | |
1714 | * letting EVP_PKEY_CTX_new_from_pkey() do it for us, then we steal it. | |
1715 | */ | |
f6aa5774 | 1716 | if (tmp_keymgmt == NULL) { |
2ee4a50a | 1717 | EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk, propquery); |
f6aa5774 | 1718 | |
4b9e90f4 RL |
1719 | tmp_keymgmt = ctx->keymgmt; |
1720 | ctx->keymgmt = NULL; | |
f6aa5774 RL |
1721 | EVP_PKEY_CTX_free(ctx); |
1722 | } | |
1723 | ||
3c6ed955 | 1724 | /* If there's still no keymgmt to be had, give up */ |
3f7ce7f1 RL |
1725 | if (tmp_keymgmt == NULL) |
1726 | goto end; | |
f6aa5774 | 1727 | |
f844f9eb | 1728 | #ifndef FIPS_MODULE |
3f7ce7f1 | 1729 | if (pk->pkey.ptr != NULL) { |
3c6ed955 | 1730 | size_t i = 0; |
3f7ce7f1 RL |
1731 | |
1732 | /* | |
3c6ed955 RL |
1733 | * If the legacy "origin" hasn't changed since last time, we try |
1734 | * to find our keymgmt in the operation cache. If it has changed, | |
1735 | * |i| remains zero, and we will clear the cache further down. | |
3f7ce7f1 | 1736 | */ |
3c6ed955 RL |
1737 | if (pk->ameth->dirty_cnt(pk) == pk->dirty_cnt_copy) { |
1738 | i = evp_keymgmt_util_find_operation_cache_index(pk, tmp_keymgmt); | |
1739 | ||
1740 | /* | |
1741 | * If |tmp_keymgmt| is present in the operation cache, it means | |
1742 | * that export doesn't need to be redone. In that case, we take | |
1743 | * token copies of the cached pointers, to have token success | |
1744 | * values to return. | |
1745 | */ | |
1746 | if (i < OSSL_NELEM(pk->operation_cache) | |
1747 | && pk->operation_cache[i].keymgmt != NULL) { | |
1748 | keydata = pk->operation_cache[i].keydata; | |
1749 | goto end; | |
1750 | } | |
3f7ce7f1 RL |
1751 | } |
1752 | ||
1753 | /* | |
3c6ed955 RL |
1754 | * TODO(3.0) Right now, we assume we have ample space. We will have |
1755 | * to think about a cache aging scheme, though, if |i| indexes outside | |
1756 | * the array. | |
3f7ce7f1 | 1757 | */ |
3c6ed955 | 1758 | if (!ossl_assert(i < OSSL_NELEM(pk->operation_cache))) |
3f7ce7f1 RL |
1759 | goto end; |
1760 | ||
1761 | /* Make sure that the keymgmt key type matches the legacy NID */ | |
1762 | if (!ossl_assert(EVP_KEYMGMT_is_a(tmp_keymgmt, OBJ_nid2sn(pk->type)))) | |
1763 | goto end; | |
1764 | ||
1765 | if ((keydata = evp_keymgmt_newdata(tmp_keymgmt)) == NULL) | |
1766 | goto end; | |
1767 | ||
76e23fc5 | 1768 | if (!pk->ameth->export_to(pk, keydata, tmp_keymgmt, libctx, propquery)) { |
3f7ce7f1 RL |
1769 | evp_keymgmt_freedata(tmp_keymgmt, keydata); |
1770 | keydata = NULL; | |
1771 | goto end; | |
1772 | } | |
1773 | ||
3c6ed955 RL |
1774 | /* |
1775 | * If the dirty counter changed since last time, then clear the | |
1776 | * operation cache. In that case, we know that |i| is zero. Just | |
1777 | * in case this is a re-export, we increment then decrement the | |
1778 | * keymgmt reference counter. | |
1779 | */ | |
1780 | if (!EVP_KEYMGMT_up_ref(tmp_keymgmt)) { /* refcnt++ */ | |
1781 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1782 | keydata = NULL; | |
1783 | goto end; | |
1784 | } | |
1785 | if (pk->ameth->dirty_cnt(pk) != pk->dirty_cnt_copy) | |
1786 | evp_keymgmt_util_clear_operation_cache(pk); | |
1787 | EVP_KEYMGMT_free(tmp_keymgmt); /* refcnt-- */ | |
1788 | ||
1789 | /* Add the new export to the operation cache */ | |
1790 | if (!evp_keymgmt_util_cache_keydata(pk, i, tmp_keymgmt, keydata)) { | |
1791 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1792 | keydata = NULL; | |
1793 | goto end; | |
1794 | } | |
3f7ce7f1 RL |
1795 | |
1796 | /* Synchronize the dirty count */ | |
1797 | pk->dirty_cnt_copy = pk->ameth->dirty_cnt(pk); | |
1798 | goto end; | |
1799 | } | |
f844f9eb | 1800 | #endif /* FIPS_MODULE */ |
3f7ce7f1 RL |
1801 | |
1802 | keydata = evp_keymgmt_util_export_to_provider(pk, tmp_keymgmt); | |
1803 | ||
1804 | end: | |
f6aa5774 RL |
1805 | /* |
1806 | * If nothing was exported, |tmp_keymgmt| might point at a freed | |
1807 | * EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for | |
1808 | * the caller either way in that case. | |
1809 | */ | |
b305452f | 1810 | if (keydata == NULL) |
f6aa5774 RL |
1811 | tmp_keymgmt = NULL; |
1812 | ||
1813 | if (keymgmt != NULL) | |
1814 | *keymgmt = tmp_keymgmt; | |
1815 | ||
1816 | EVP_KEYMGMT_free(allocated_keymgmt); | |
b305452f | 1817 | return keydata; |
f6aa5774 | 1818 | } |
badf51c8 | 1819 | |
f844f9eb | 1820 | #ifndef FIPS_MODULE |
4ce1025a | 1821 | int evp_pkey_copy_downgraded(EVP_PKEY **dest, const EVP_PKEY *src) |
badf51c8 | 1822 | { |
4ce1025a RL |
1823 | if (!ossl_assert(dest != NULL)) |
1824 | return 0; | |
badf51c8 | 1825 | |
4ce1025a RL |
1826 | if (evp_pkey_is_assigned(src) && evp_pkey_is_provided(src)) { |
1827 | EVP_KEYMGMT *keymgmt = src->keymgmt; | |
1828 | void *keydata = src->keydata; | |
1829 | int type = src->type; | |
1830 | const char *keytype = NULL; | |
acb90ba8 | 1831 | |
4ce1025a RL |
1832 | keytype = evp_first_name(EVP_KEYMGMT_provider(keymgmt), |
1833 | keymgmt->name_id); | |
badf51c8 | 1834 | |
4ce1025a RL |
1835 | /* |
1836 | * If the type is EVP_PKEY_NONE, then we have a problem somewhere | |
1837 | * else in our code. If it's not one of the well known EVP_PKEY_xxx | |
1838 | * values, it should at least be EVP_PKEY_KEYMGMT at this point. | |
1839 | * TODO(3.0) remove this check when we're confident that the rest | |
1840 | * of the code treats this correctly. | |
1841 | */ | |
1842 | if (!ossl_assert(type != EVP_PKEY_NONE)) { | |
1843 | ERR_raise_data(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR, | |
1844 | "keymgmt key type = %s but legacy type = EVP_PKEY_NONE", | |
1845 | keytype); | |
1846 | return 0; | |
1847 | } | |
badf51c8 | 1848 | |
4ce1025a RL |
1849 | /* Prefer the legacy key type name for error reporting */ |
1850 | if (type != EVP_PKEY_KEYMGMT) | |
1851 | keytype = OBJ_nid2sn(type); | |
5e5bc836 | 1852 | |
4ce1025a RL |
1853 | /* Make sure we have a clean slate to copy into */ |
1854 | if (*dest == NULL) | |
1855 | *dest = EVP_PKEY_new(); | |
1856 | else | |
1857 | evp_pkey_free_it(*dest); | |
badf51c8 | 1858 | |
4ce1025a RL |
1859 | if (EVP_PKEY_set_type(*dest, type)) { |
1860 | /* If the key is typed but empty, we're done */ | |
1861 | if (keydata == NULL) | |
1862 | return 1; | |
629c72db | 1863 | |
4ce1025a RL |
1864 | if ((*dest)->ameth->import_from == NULL) { |
1865 | ERR_raise_data(ERR_LIB_EVP, EVP_R_NO_IMPORT_FUNCTION, | |
1866 | "key type = %s", keytype); | |
1867 | } else { | |
629c72db | 1868 | /* |
4ce1025a RL |
1869 | * We perform the export in the same libctx as the keymgmt |
1870 | * that we are using. | |
629c72db | 1871 | */ |
b4250010 | 1872 | OSSL_LIB_CTX *libctx = |
a829b735 | 1873 | ossl_provider_libctx(keymgmt->prov); |
4ce1025a RL |
1874 | EVP_PKEY_CTX *pctx = |
1875 | EVP_PKEY_CTX_new_from_pkey(libctx, *dest, NULL); | |
629c72db | 1876 | |
4ce1025a RL |
1877 | if (pctx == NULL) |
1878 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
629c72db | 1879 | |
4ce1025a RL |
1880 | if (pctx != NULL |
1881 | && evp_keymgmt_export(keymgmt, keydata, | |
1882 | OSSL_KEYMGMT_SELECT_ALL, | |
1883 | (*dest)->ameth->import_from, | |
1884 | pctx)) { | |
1885 | /* Synchronize the dirty count */ | |
1886 | (*dest)->dirty_cnt_copy = (*dest)->ameth->dirty_cnt(*dest); | |
1887 | ||
1888 | EVP_PKEY_CTX_free(pctx); | |
1889 | return 1; | |
1890 | } | |
1891 | EVP_PKEY_CTX_free(pctx); | |
629c72db | 1892 | } |
badf51c8 | 1893 | |
4ce1025a RL |
1894 | ERR_raise_data(ERR_LIB_EVP, EVP_R_KEYMGMT_EXPORT_FAILURE, |
1895 | "key type = %s", keytype); | |
1896 | } | |
badf51c8 RL |
1897 | } |
1898 | ||
4ce1025a RL |
1899 | return 0; |
1900 | } | |
1901 | ||
1902 | int evp_pkey_downgrade(EVP_PKEY *pk) | |
1903 | { | |
a8154452 | 1904 | EVP_PKEY tmp_copy; /* Stack allocated! */ |
a8154452 RL |
1905 | int rv = 0; |
1906 | ||
1907 | if (!ossl_assert(pk != NULL)) | |
1908 | return 0; | |
1909 | ||
1910 | /* | |
1911 | * Throughout this whole function, we must ensure that we lock / unlock | |
1912 | * the exact same lock. Note that we do pass it around a bit. | |
1913 | */ | |
1914 | if (!CRYPTO_THREAD_write_lock(pk->lock)) | |
1915 | return 0; | |
4ce1025a RL |
1916 | |
1917 | /* If this isn't an assigned provider side key, we're done */ | |
a8154452 RL |
1918 | if (!evp_pkey_is_assigned(pk) || !evp_pkey_is_provided(pk)) { |
1919 | rv = 1; | |
1920 | goto end; | |
1921 | } | |
4ce1025a | 1922 | |
badf51c8 | 1923 | /* |
4ce1025a RL |
1924 | * To be able to downgrade, we steal the contents of |pk|, then reset |
1925 | * it, and finally try to make it a downgraded copy. If any of that | |
1926 | * fails, we restore the copied contents into |pk|. | |
badf51c8 | 1927 | */ |
a8154452 | 1928 | tmp_copy = *pk; /* |tmp_copy| now owns THE lock */ |
4ce1025a RL |
1929 | |
1930 | if (evp_pkey_reset_unlocked(pk) | |
1931 | && evp_pkey_copy_downgraded(&pk, &tmp_copy)) { | |
a8154452 | 1932 | |
4ce1025a RL |
1933 | /* Restore the common attributes, then empty |tmp_copy| */ |
1934 | pk->references = tmp_copy.references; | |
4ce1025a RL |
1935 | pk->attributes = tmp_copy.attributes; |
1936 | pk->save_parameters = tmp_copy.save_parameters; | |
1937 | pk->ex_data = tmp_copy.ex_data; | |
1938 | ||
1939 | /* Ensure that stuff we've copied won't be freed */ | |
1940 | tmp_copy.lock = NULL; | |
1941 | tmp_copy.attributes = NULL; | |
1942 | memset(&tmp_copy.ex_data, 0, sizeof(tmp_copy.ex_data)); | |
1943 | ||
1944 | /* | |
1945 | * Save the provider side data in the operation cache, so they'll | |
1946 | * find it again. |pk| is new, so it's safe to assume slot zero | |
1947 | * is free. | |
1948 | * Note that evp_keymgmt_util_cache_keydata() increments keymgmt's | |
1949 | * reference count, so we need to decrement it, or there will be a | |
1950 | * leak. | |
1951 | */ | |
1952 | evp_keymgmt_util_cache_keydata(pk, 0, tmp_copy.keymgmt, | |
1953 | tmp_copy.keydata); | |
1954 | EVP_KEYMGMT_free(tmp_copy.keymgmt); | |
1955 | ||
1956 | /* | |
1957 | * Clear keymgmt and keydata from |tmp_copy|, or they'll get | |
1958 | * inadvertently freed. | |
1959 | */ | |
1960 | tmp_copy.keymgmt = NULL; | |
1961 | tmp_copy.keydata = NULL; | |
1962 | ||
1963 | evp_pkey_free_it(&tmp_copy); | |
a8154452 RL |
1964 | rv = 1; |
1965 | } else { | |
a8154452 | 1966 | /* Restore the original key */ |
8dc34b1f | 1967 | *pk = tmp_copy; |
acb90ba8 | 1968 | } |
4ce1025a | 1969 | |
a8154452 RL |
1970 | end: |
1971 | if (!CRYPTO_THREAD_unlock(pk->lock)) | |
1972 | return 0; | |
1973 | return rv; | |
badf51c8 | 1974 | } |
f844f9eb | 1975 | #endif /* FIPS_MODULE */ |
96ebe52e | 1976 | |
a73a1892 | 1977 | const OSSL_PARAM *EVP_PKEY_gettable_params(const EVP_PKEY *pkey) |
96ebe52e SL |
1978 | { |
1979 | if (pkey == NULL | |
1980 | || pkey->keymgmt == NULL | |
1981 | || pkey->keydata == NULL) | |
1982 | return 0; | |
e3efe7a5 | 1983 | return EVP_KEYMGMT_gettable_params(pkey->keymgmt); |
96ebe52e SL |
1984 | } |
1985 | ||
a73a1892 RL |
1986 | int EVP_PKEY_get_bn_param(const EVP_PKEY *pkey, const char *key_name, |
1987 | BIGNUM **bn) | |
96ebe52e SL |
1988 | { |
1989 | int ret = 0; | |
1990 | OSSL_PARAM params[2]; | |
1991 | unsigned char buffer[2048]; | |
96ebe52e SL |
1992 | unsigned char *buf = NULL; |
1993 | size_t buf_sz = 0; | |
1994 | ||
1995 | if (pkey == NULL | |
1996 | || pkey->keymgmt == NULL | |
1997 | || pkey->keydata == NULL | |
1998 | || key_name == NULL | |
1999 | || bn == NULL) | |
2000 | return 0; | |
2001 | ||
2002 | memset(buffer, 0, sizeof(buffer)); | |
2003 | params[0] = OSSL_PARAM_construct_BN(key_name, buffer, sizeof(buffer)); | |
96ebe52e SL |
2004 | params[1] = OSSL_PARAM_construct_end(); |
2005 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) { | |
99ea4f02 | 2006 | if (!OSSL_PARAM_modified(params) || params[0].return_size == 0) |
96ebe52e SL |
2007 | return 0; |
2008 | buf_sz = params[0].return_size; | |
2009 | /* | |
2010 | * If it failed because the buffer was too small then allocate the | |
2011 | * required buffer size and retry. | |
2012 | */ | |
2013 | buf = OPENSSL_zalloc(buf_sz); | |
2014 | if (buf == NULL) | |
2015 | return 0; | |
2016 | params[0].data = buf; | |
2017 | params[0].data_size = buf_sz; | |
2018 | ||
2019 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) | |
2020 | goto err; | |
2021 | } | |
2022 | /* Fail if the param was not found */ | |
99ea4f02 | 2023 | if (!OSSL_PARAM_modified(params)) |
96ebe52e SL |
2024 | goto err; |
2025 | ret = OSSL_PARAM_get_BN(params, bn); | |
2026 | err: | |
2027 | OPENSSL_free(buf); | |
2028 | return ret; | |
2029 | } | |
2030 | ||
a73a1892 | 2031 | int EVP_PKEY_get_octet_string_param(const EVP_PKEY *pkey, const char *key_name, |
96ebe52e SL |
2032 | unsigned char *buf, size_t max_buf_sz, |
2033 | size_t *out_sz) | |
2034 | { | |
2035 | OSSL_PARAM params[2]; | |
96ebe52e SL |
2036 | |
2037 | if (pkey == NULL | |
2038 | || pkey->keymgmt == NULL | |
2039 | || pkey->keydata == NULL | |
2040 | || key_name == NULL) | |
2041 | return 0; | |
2042 | ||
2043 | params[0] = OSSL_PARAM_construct_octet_string(key_name, buf, max_buf_sz); | |
96ebe52e | 2044 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
2045 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
2046 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
2047 | return 0; |
2048 | if (out_sz != NULL) | |
2049 | *out_sz = params[0].return_size; | |
2050 | return 1; | |
2051 | } | |
2052 | ||
a73a1892 | 2053 | int EVP_PKEY_get_utf8_string_param(const EVP_PKEY *pkey, const char *key_name, |
96ebe52e SL |
2054 | char *str, size_t max_buf_sz, |
2055 | size_t *out_sz) | |
2056 | { | |
2057 | OSSL_PARAM params[2]; | |
96ebe52e SL |
2058 | |
2059 | if (pkey == NULL | |
2060 | || pkey->keymgmt == NULL | |
2061 | || pkey->keydata == NULL | |
2062 | || key_name == NULL) | |
2063 | return 0; | |
2064 | ||
2065 | params[0] = OSSL_PARAM_construct_utf8_string(key_name, str, max_buf_sz); | |
96ebe52e | 2066 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
2067 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
2068 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
2069 | return 0; |
2070 | if (out_sz != NULL) | |
2071 | *out_sz = params[0].return_size; | |
2072 | return 1; | |
2073 | } | |
2074 | ||
a73a1892 RL |
2075 | int EVP_PKEY_get_int_param(const EVP_PKEY *pkey, const char *key_name, |
2076 | int *out) | |
96ebe52e SL |
2077 | { |
2078 | OSSL_PARAM params[2]; | |
96ebe52e SL |
2079 | |
2080 | if (pkey == NULL | |
2081 | || pkey->keymgmt == NULL | |
2082 | || pkey->keydata == NULL | |
2083 | || key_name == NULL) | |
2084 | return 0; | |
2085 | ||
2086 | params[0] = OSSL_PARAM_construct_int(key_name, out); | |
96ebe52e | 2087 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
2088 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
2089 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
2090 | return 0; |
2091 | return 1; | |
2092 | } | |
2093 | ||
a73a1892 RL |
2094 | int EVP_PKEY_get_size_t_param(const EVP_PKEY *pkey, const char *key_name, |
2095 | size_t *out) | |
96ebe52e SL |
2096 | { |
2097 | OSSL_PARAM params[2]; | |
96ebe52e SL |
2098 | |
2099 | if (pkey == NULL | |
2100 | || pkey->keymgmt == NULL | |
2101 | || pkey->keydata == NULL | |
2102 | || key_name == NULL) | |
2103 | return 0; | |
2104 | ||
2105 | params[0] = OSSL_PARAM_construct_size_t(key_name, out); | |
96ebe52e | 2106 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
2107 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
2108 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
2109 | return 0; |
2110 | return 1; | |
2111 | } | |
98dbf2c1 SL |
2112 | |
2113 | int EVP_PKEY_set_int_param(EVP_PKEY *pkey, const char *key_name, int in) | |
2114 | { | |
2115 | OSSL_PARAM params[2]; | |
2116 | ||
2117 | if (pkey == NULL | |
2118 | || pkey->keymgmt == NULL | |
2119 | || pkey->keydata == NULL | |
2120 | || key_name == NULL) | |
2121 | return 0; | |
2122 | ||
2123 | params[0] = OSSL_PARAM_construct_int(key_name, &in); | |
2124 | params[1] = OSSL_PARAM_construct_end(); | |
2125 | return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params); | |
2126 | } | |
2127 | ||
2128 | int EVP_PKEY_set_size_t_param(EVP_PKEY *pkey, const char *key_name, size_t in) | |
2129 | { | |
2130 | OSSL_PARAM params[2]; | |
2131 | ||
2132 | if (pkey == NULL | |
2133 | || pkey->keymgmt == NULL | |
2134 | || pkey->keydata == NULL | |
2135 | || key_name == NULL) | |
2136 | return 0; | |
2137 | ||
2138 | params[0] = OSSL_PARAM_construct_size_t(key_name, &in); | |
2139 | params[1] = OSSL_PARAM_construct_end(); | |
2140 | return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params); | |
2141 | } | |
2142 | ||
2143 | int EVP_PKEY_set_bn_param(EVP_PKEY *pkey, const char *key_name, BIGNUM *bn) | |
2144 | { | |
2145 | OSSL_PARAM params[2]; | |
2146 | unsigned char buffer[2048]; | |
2147 | int bsize = 0; | |
2148 | ||
2149 | if (pkey == NULL | |
2150 | || pkey->keymgmt == NULL | |
2151 | || pkey->keydata == NULL | |
2152 | || key_name == NULL | |
2153 | || bn == NULL) | |
2154 | return 0; | |
2155 | ||
2156 | bsize = BN_num_bytes(bn); | |
2157 | if (!ossl_assert(bsize <= (int)sizeof(buffer))) | |
2158 | return 0; | |
2159 | ||
2160 | if (BN_bn2nativepad(bn, buffer, bsize) < 0) | |
2161 | return 0; | |
2162 | params[0] = OSSL_PARAM_construct_BN(key_name, buffer, bsize); | |
2163 | params[1] = OSSL_PARAM_construct_end(); | |
2164 | return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params); | |
2165 | } | |
2166 | ||
2167 | int EVP_PKEY_set_utf8_string_param(EVP_PKEY *pkey, const char *key_name, | |
2168 | char *str) | |
2169 | { | |
2170 | OSSL_PARAM params[2]; | |
2171 | ||
2172 | if (pkey == NULL | |
2173 | || pkey->keymgmt == NULL | |
2174 | || pkey->keydata == NULL | |
2175 | || key_name == NULL) | |
2176 | return 0; | |
2177 | ||
2178 | params[0] = OSSL_PARAM_construct_utf8_string(key_name, str, 0); | |
2179 | params[1] = OSSL_PARAM_construct_end(); | |
2180 | return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params); | |
2181 | } | |
2182 | ||
2183 | int EVP_PKEY_set_octet_string_param(EVP_PKEY *pkey, const char *key_name, | |
2184 | unsigned char *buf, size_t bsize) | |
2185 | { | |
2186 | OSSL_PARAM params[2]; | |
2187 | ||
2188 | if (pkey == NULL | |
2189 | || pkey->keymgmt == NULL | |
2190 | || pkey->keydata == NULL | |
2191 | || key_name == NULL) | |
2192 | return 0; | |
2193 | ||
2194 | params[0] = OSSL_PARAM_construct_octet_string(key_name, buf, bsize); | |
2195 | params[1] = OSSL_PARAM_construct_end(); | |
2196 | return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params); | |
2197 | } | |
2198 | ||
2199 | const OSSL_PARAM *EVP_PKEY_settable_params(EVP_PKEY *pkey) | |
2200 | { | |
2201 | if (pkey == NULL | |
2202 | || pkey->keymgmt == NULL | |
2203 | || pkey->keydata == NULL) | |
2204 | return 0; | |
2205 | return EVP_KEYMGMT_settable_params(pkey->keymgmt); | |
2206 | } | |
2207 | ||
2208 | int EVP_PKEY_set_params(EVP_PKEY *pkey, OSSL_PARAM params[]) | |
2209 | { | |
2210 | if (pkey == NULL | |
2211 | || pkey->keymgmt == NULL | |
2212 | || pkey->keydata == NULL) | |
2213 | return 0; | |
2214 | return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params); | |
2215 | } | |
3d34bedf MC |
2216 | |
2217 | #ifndef FIPS_MODULE | |
2218 | int EVP_PKEY_get_ec_point_conv_form(const EVP_PKEY *pkey) | |
2219 | { | |
2220 | char name[80]; | |
2221 | size_t name_len; | |
2222 | ||
2223 | if (pkey == NULL) | |
2224 | return 0; | |
2225 | ||
2226 | if (pkey->keymgmt == NULL | |
2227 | || pkey->keydata == NULL) { | |
2228 | #ifndef OPENSSL_NO_EC | |
2229 | /* Might work through the legacy route */ | |
2230 | EC_KEY *ec = EVP_PKEY_get0_EC_KEY(pkey); | |
2231 | ||
2232 | if (ec == NULL) | |
2233 | return 0; | |
2234 | ||
2235 | return EC_KEY_get_conv_form(ec); | |
2236 | #else | |
2237 | return 0; | |
2238 | #endif | |
2239 | } | |
2240 | ||
2241 | if (!EVP_PKEY_get_utf8_string_param(pkey, | |
2242 | OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, | |
2243 | name, sizeof(name), &name_len)) | |
2244 | return 0; | |
2245 | ||
2246 | if (strcmp(name, "uncompressed") == 0) | |
2247 | return POINT_CONVERSION_UNCOMPRESSED; | |
2248 | ||
2249 | if (strcmp(name, "compressed") == 0) | |
2250 | return POINT_CONVERSION_COMPRESSED; | |
2251 | ||
2252 | if (strcmp(name, "hybrid") == 0) | |
2253 | return POINT_CONVERSION_HYBRID; | |
2254 | ||
2255 | return 0; | |
2256 | } | |
2257 | ||
2258 | int EVP_PKEY_get_field_type(const EVP_PKEY *pkey) | |
2259 | { | |
2260 | char fstr[80]; | |
2261 | size_t fstrlen; | |
2262 | ||
2263 | if (pkey == NULL) | |
2264 | return 0; | |
2265 | ||
2266 | if (pkey->keymgmt == NULL | |
2267 | || pkey->keydata == NULL) { | |
2268 | #ifndef OPENSSL_NO_EC | |
2269 | /* Might work through the legacy route */ | |
2270 | EC_KEY *ec = EVP_PKEY_get0_EC_KEY(pkey); | |
2271 | const EC_GROUP *grp; | |
2272 | ||
2273 | if (ec == NULL) | |
2274 | return 0; | |
2275 | grp = EC_KEY_get0_group(ec); | |
82a46200 TM |
2276 | if (grp == NULL) |
2277 | return 0; | |
3d34bedf MC |
2278 | |
2279 | return EC_GROUP_get_field_type(grp); | |
2280 | #else | |
2281 | return 0; | |
2282 | #endif | |
2283 | } | |
2284 | ||
2285 | if (!EVP_PKEY_get_utf8_string_param(pkey, OSSL_PKEY_PARAM_EC_FIELD_TYPE, | |
2286 | fstr, sizeof(fstr), &fstrlen)) | |
2287 | return 0; | |
2288 | ||
2289 | if (strcmp(fstr, SN_X9_62_prime_field) == 0) | |
2290 | return NID_X9_62_prime_field; | |
2291 | else if (strcmp(fstr, SN_X9_62_characteristic_two_field)) | |
2292 | return NID_X9_62_characteristic_two_field; | |
2293 | ||
2294 | return 0; | |
2295 | } | |
2296 | #endif |