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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 | 908 | #ifndef FIPS_MODULE |
977e95b9 RL |
909 | /* |
910 | * These hard coded cases are pure hackery to get around the fact | |
911 | * that names in crypto/objects/objects.txt are a mess. There is | |
912 | * no "EC", and "RSA" leads to the NID for 2.5.8.1.1, an OID that's | |
913 | * fallen out in favor of { pkcs-1 1 }, i.e. 1.2.840.113549.1.1.1, | |
914 | * the NID of which is used for EVP_PKEY_RSA. Strangely enough, | |
915 | * "DSA" is accurate... but still, better be safe and hard-code | |
916 | * names that we know. | |
917 | * On a similar topic, EVP_PKEY_type(EVP_PKEY_SM2) will result in | |
918 | * EVP_PKEY_EC, because of aliasing. | |
919 | * TODO Clean this away along with all other #legacy support. | |
920 | */ | |
921 | static const OSSL_ITEM standard_name2type[] = { | |
922 | { EVP_PKEY_RSA, "RSA" }, | |
923 | { EVP_PKEY_RSA_PSS, "RSA-PSS" }, | |
924 | { EVP_PKEY_EC, "EC" }, | |
925 | { EVP_PKEY_ED25519, "ED25519" }, | |
926 | { EVP_PKEY_ED448, "ED448" }, | |
927 | { EVP_PKEY_X25519, "X25519" }, | |
928 | { EVP_PKEY_X448, "X448" }, | |
929 | { EVP_PKEY_SM2, "SM2" }, | |
930 | { EVP_PKEY_DH, "DH" }, | |
931 | { EVP_PKEY_DHX, "X9.42 DH" }, | |
932 | { EVP_PKEY_DHX, "DHX" }, | |
933 | { EVP_PKEY_DSA, "DSA" }, | |
934 | }; | |
935 | ||
50914496 RL |
936 | int evp_pkey_name2type(const char *name) |
937 | { | |
977e95b9 RL |
938 | int type; |
939 | size_t i; | |
940 | ||
941 | for (i = 0; i < OSSL_NELEM(standard_name2type); i++) { | |
942 | if (strcasecmp(name, standard_name2type[i].ptr) == 0) | |
943 | return (int)standard_name2type[i].id; | |
944 | } | |
945 | ||
946 | if ((type = EVP_PKEY_type(OBJ_sn2nid(name))) != NID_undef) | |
947 | return type; | |
948 | return EVP_PKEY_type(OBJ_ln2nid(name)); | |
949 | } | |
950 | ||
951 | const char *evp_pkey_type2name(int type) | |
952 | { | |
953 | size_t i; | |
954 | ||
955 | for (i = 0; i < OSSL_NELEM(standard_name2type); i++) { | |
956 | if (type == (int)standard_name2type[i].id) | |
957 | return standard_name2type[i].ptr; | |
958 | } | |
959 | ||
960 | return OBJ_nid2sn(type); | |
50914496 RL |
961 | } |
962 | #endif | |
963 | ||
4f76d62f RL |
964 | int EVP_PKEY_is_a(const EVP_PKEY *pkey, const char *name) |
965 | { | |
f844f9eb | 966 | #ifndef FIPS_MODULE |
4f76d62f | 967 | if (pkey->keymgmt == NULL) { |
50914496 | 968 | int type = evp_pkey_name2type(name); |
4f76d62f | 969 | |
50914496 | 970 | return pkey->type == type; |
4f76d62f RL |
971 | } |
972 | #endif | |
973 | return EVP_KEYMGMT_is_a(pkey->keymgmt, name); | |
974 | } | |
975 | ||
ae12eac0 RL |
976 | void EVP_PKEY_typenames_do_all(const EVP_PKEY *pkey, |
977 | void (*fn)(const char *name, void *data), | |
978 | void *data) | |
979 | { | |
980 | if (!evp_pkey_is_typed(pkey)) | |
981 | return; | |
982 | ||
983 | if (!evp_pkey_is_provided(pkey)) { | |
984 | const char *name = OBJ_nid2sn(EVP_PKEY_id(pkey)); | |
985 | ||
986 | fn(name, data); | |
987 | return; | |
988 | } | |
989 | EVP_KEYMGMT_names_do_all(pkey->keymgmt, fn, data); | |
990 | } | |
991 | ||
4f76d62f RL |
992 | int EVP_PKEY_can_sign(const EVP_PKEY *pkey) |
993 | { | |
994 | if (pkey->keymgmt == NULL) { | |
995 | switch (EVP_PKEY_base_id(pkey)) { | |
996 | case EVP_PKEY_RSA: | |
997 | return 1; | |
998 | #ifndef OPENSSL_NO_DSA | |
999 | case EVP_PKEY_DSA: | |
1000 | return 1; | |
1001 | #endif | |
1002 | #ifndef OPENSSL_NO_EC | |
1003 | case EVP_PKEY_ED25519: | |
1004 | case EVP_PKEY_ED448: | |
1005 | return 1; | |
1006 | case EVP_PKEY_EC: /* Including SM2 */ | |
1007 | return EC_KEY_can_sign(pkey->pkey.ec); | |
1008 | #endif | |
1009 | default: | |
1010 | break; | |
1011 | } | |
1012 | } else { | |
1013 | const OSSL_PROVIDER *prov = EVP_KEYMGMT_provider(pkey->keymgmt); | |
a829b735 | 1014 | OSSL_LIB_CTX *libctx = ossl_provider_libctx(prov); |
4f76d62f RL |
1015 | const char *supported_sig = |
1016 | pkey->keymgmt->query_operation_name != NULL | |
1017 | ? pkey->keymgmt->query_operation_name(OSSL_OP_SIGNATURE) | |
1018 | : evp_first_name(prov, pkey->keymgmt->name_id); | |
1019 | EVP_SIGNATURE *signature = NULL; | |
1020 | ||
1021 | signature = EVP_SIGNATURE_fetch(libctx, supported_sig, NULL); | |
1022 | if (signature != NULL) { | |
1023 | EVP_SIGNATURE_free(signature); | |
1024 | return 1; | |
1025 | } | |
1026 | } | |
1027 | return 0; | |
1028 | } | |
d02b48c6 | 1029 | |
f1299839 RL |
1030 | static int print_reset_indent(BIO **out, int pop_f_prefix, long saved_indent) |
1031 | { | |
1032 | BIO_set_indent(*out, saved_indent); | |
1033 | if (pop_f_prefix) { | |
1034 | BIO *next = BIO_pop(*out); | |
1035 | ||
1036 | BIO_free(*out); | |
1037 | *out = next; | |
1038 | } | |
1039 | return 1; | |
1040 | } | |
1041 | ||
1042 | static int print_set_indent(BIO **out, int *pop_f_prefix, long *saved_indent, | |
1043 | long indent) | |
1044 | { | |
1045 | *pop_f_prefix = 0; | |
1046 | *saved_indent = 0; | |
1047 | if (indent > 0) { | |
1048 | long i = BIO_get_indent(*out); | |
1049 | ||
1050 | *saved_indent = (i < 0 ? 0 : i); | |
1051 | if (BIO_set_indent(*out, indent) <= 0) { | |
1052 | if ((*out = BIO_push(BIO_new(BIO_f_prefix()), *out)) == NULL) | |
1053 | return 0; | |
1054 | *pop_f_prefix = 1; | |
1055 | } | |
1056 | if (BIO_set_indent(*out, indent) <= 0) { | |
1057 | print_reset_indent(out, *pop_f_prefix, *saved_indent); | |
1058 | return 0; | |
1059 | } | |
1060 | } | |
1061 | return 1; | |
1062 | } | |
1063 | ||
35208f36 | 1064 | static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent, |
0f113f3e MC |
1065 | const char *kstr) |
1066 | { | |
5310a4e6 P |
1067 | return BIO_indent(out, indent, 128) |
1068 | && BIO_printf(out, "%s algorithm \"%s\" unsupported\n", | |
1069 | kstr, OBJ_nid2ln(pkey->type)) > 0; | |
0f113f3e | 1070 | } |
35208f36 | 1071 | |
f1299839 | 1072 | static int print_pkey(const EVP_PKEY *pkey, BIO *out, int indent, |
97bb8dff | 1073 | int selection /* For provided encoding */, |
ece9304c | 1074 | const char *propquery /* For provided encoding */, |
f1299839 RL |
1075 | int (*legacy_print)(BIO *out, const EVP_PKEY *pkey, |
1076 | int indent, ASN1_PCTX *pctx), | |
1077 | ASN1_PCTX *legacy_pctx /* For legacy print */) | |
0f113f3e | 1078 | { |
f1299839 RL |
1079 | int pop_f_prefix; |
1080 | long saved_indent; | |
ece9304c | 1081 | OSSL_ENCODER_CTX *ctx = NULL; |
f1299839 RL |
1082 | int ret = -2; /* default to unsupported */ |
1083 | ||
1084 | if (!print_set_indent(&out, &pop_f_prefix, &saved_indent, indent)) | |
1085 | return 0; | |
54c1711f | 1086 | |
4227e504 | 1087 | ctx = OSSL_ENCODER_CTX_new_by_EVP_PKEY(pkey, selection, "TEXT", NULL, |
b03da688 | 1088 | propquery); |
97bb8dff | 1089 | if (OSSL_ENCODER_CTX_get_num_encoders(ctx) != 0) |
ece9304c RL |
1090 | ret = OSSL_ENCODER_to_bio(ctx, out); |
1091 | OSSL_ENCODER_CTX_free(ctx); | |
54c1711f RL |
1092 | |
1093 | if (ret != -2) | |
f1299839 | 1094 | goto end; |
54c1711f RL |
1095 | |
1096 | /* legacy fallback */ | |
f1299839 RL |
1097 | if (legacy_print != NULL) |
1098 | ret = legacy_print(out, pkey, 0, legacy_pctx); | |
1099 | else | |
1100 | ret = unsup_alg(out, pkey, 0, "Public Key"); | |
0f113f3e | 1101 | |
f1299839 RL |
1102 | end: |
1103 | print_reset_indent(&out, pop_f_prefix, saved_indent); | |
1104 | return ret; | |
1105 | } | |
1106 | ||
1107 | int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, | |
1108 | int indent, ASN1_PCTX *pctx) | |
1109 | { | |
b03da688 | 1110 | return print_pkey(pkey, out, indent, EVP_PKEY_PUBLIC_KEY, NULL, |
f1299839 RL |
1111 | (pkey->ameth != NULL ? pkey->ameth->pub_print : NULL), |
1112 | pctx); | |
0f113f3e | 1113 | } |
35208f36 DSH |
1114 | |
1115 | int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
1116 | int indent, ASN1_PCTX *pctx) |
1117 | { | |
b03da688 | 1118 | return print_pkey(pkey, out, indent, EVP_PKEY_KEYPAIR, NULL, |
f1299839 RL |
1119 | (pkey->ameth != NULL ? pkey->ameth->priv_print : NULL), |
1120 | pctx); | |
0f113f3e | 1121 | } |
35208f36 DSH |
1122 | |
1123 | int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
1124 | int indent, ASN1_PCTX *pctx) |
1125 | { | |
b03da688 | 1126 | return print_pkey(pkey, out, indent, EVP_PKEY_KEY_PARAMETERS, NULL, |
f1299839 RL |
1127 | (pkey->ameth != NULL ? pkey->ameth->param_print : NULL), |
1128 | pctx); | |
0f113f3e | 1129 | } |
03919683 | 1130 | |
fc52ae8c | 1131 | static void mdname2nid(const char *mdname, void *data) |
5060cd5f MC |
1132 | { |
1133 | int *nid = (int *)data; | |
1134 | ||
1135 | if (*nid != NID_undef) | |
1136 | return; | |
1137 | ||
1138 | *nid = OBJ_sn2nid(mdname); | |
1139 | if (*nid == NID_undef) | |
1140 | *nid = OBJ_ln2nid(mdname); | |
1141 | } | |
1142 | ||
ead0d234 RL |
1143 | static int legacy_asn1_ctrl_to_param(EVP_PKEY *pkey, int op, |
1144 | int arg1, void *arg2) | |
1145 | { | |
3c6ed955 | 1146 | if (pkey->keymgmt == NULL) |
ead0d234 RL |
1147 | return 0; |
1148 | switch (op) { | |
1149 | case ASN1_PKEY_CTRL_DEFAULT_MD_NID: | |
1150 | { | |
1151 | char mdname[80] = ""; | |
ead0d234 RL |
1152 | int rv = EVP_PKEY_get_default_digest_name(pkey, mdname, |
1153 | sizeof(mdname)); | |
1154 | ||
90ef39f4 | 1155 | if (rv > 0) { |
5060cd5f MC |
1156 | int mdnum; |
1157 | OSSL_LIB_CTX *libctx = ossl_provider_libctx(pkey->keymgmt->prov); | |
1158 | /* Make sure the MD is in the namemap if available */ | |
1159 | EVP_MD *md = EVP_MD_fetch(libctx, mdname, NULL); | |
1160 | OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx); | |
1161 | int nid = NID_undef; | |
1162 | ||
1163 | /* | |
1164 | * The only reason to fetch the MD was to make sure it is in the | |
1165 | * namemap. We can immediately free it. | |
1166 | */ | |
1167 | EVP_MD_free(md); | |
1168 | mdnum = ossl_namemap_name2num(namemap, mdname); | |
1169 | if (mdnum == 0) | |
1170 | return 0; | |
1171 | ||
1172 | /* | |
1173 | * We have the namemap number - now we need to find the | |
1174 | * associated nid | |
1175 | */ | |
fc52ae8c | 1176 | ossl_namemap_doall_names(namemap, mdnum, mdname2nid, &nid); |
90ef39f4 RL |
1177 | *(int *)arg2 = nid; |
1178 | } | |
1179 | return rv; | |
ead0d234 RL |
1180 | } |
1181 | default: | |
1182 | return -2; | |
1183 | } | |
1184 | } | |
1185 | ||
5d6aaf8a | 1186 | static int evp_pkey_asn1_ctrl(EVP_PKEY *pkey, int op, int arg1, void *arg2) |
0f113f3e | 1187 | { |
ead0d234 RL |
1188 | if (pkey->ameth == NULL) |
1189 | return legacy_asn1_ctrl_to_param(pkey, op, arg1, arg2); | |
1190 | if (pkey->ameth->pkey_ctrl == NULL) | |
0f113f3e | 1191 | return -2; |
5d6aaf8a DSH |
1192 | return pkey->ameth->pkey_ctrl(pkey, op, arg1, arg2); |
1193 | } | |
1194 | ||
1195 | int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid) | |
1196 | { | |
1197 | return evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 0, pnid); | |
1198 | } | |
1199 | ||
ead0d234 RL |
1200 | int EVP_PKEY_get_default_digest_name(EVP_PKEY *pkey, |
1201 | char *mdname, size_t mdname_sz) | |
1202 | { | |
3b924da0 RL |
1203 | if (pkey->ameth == NULL) |
1204 | return evp_keymgmt_util_get_deflt_digest_name(pkey->keymgmt, | |
1205 | pkey->keydata, | |
1206 | mdname, mdname_sz); | |
ead0d234 RL |
1207 | |
1208 | { | |
1209 | int nid = NID_undef; | |
1210 | int rv = EVP_PKEY_get_default_digest_nid(pkey, &nid); | |
1211 | const char *name = rv > 0 ? OBJ_nid2sn(nid) : NULL; | |
1212 | ||
1213 | if (rv > 0) | |
1214 | OPENSSL_strlcpy(mdname, name, mdname_sz); | |
1215 | return rv; | |
1216 | } | |
1217 | } | |
1218 | ||
88bddad4 RL |
1219 | int EVP_PKEY_get_group_name(const EVP_PKEY *pkey, char *gname, size_t gname_sz, |
1220 | size_t *gname_len) | |
1221 | { | |
1222 | if (evp_pkey_is_legacy(pkey)) { | |
1223 | const char *name = NULL; | |
1224 | ||
1225 | switch (EVP_PKEY_base_id(pkey)) { | |
1226 | #ifndef OPENSSL_NO_EC | |
1227 | case EVP_PKEY_EC: | |
1228 | { | |
82a46200 TM |
1229 | const EC_GROUP *grp = EC_KEY_get0_group(EVP_PKEY_get0_EC_KEY(pkey)); |
1230 | int nid = NID_undef; | |
88bddad4 | 1231 | |
82a46200 TM |
1232 | if (grp != NULL) |
1233 | nid = EC_GROUP_get_curve_name(grp); | |
88bddad4 RL |
1234 | if (nid != NID_undef) |
1235 | name = ec_curve_nid2name(nid); | |
1236 | } | |
1237 | break; | |
1238 | #endif | |
1239 | #ifndef OPENSSL_NO_DH | |
1240 | case EVP_PKEY_DH: | |
1241 | { | |
1242 | DH *dh = EVP_PKEY_get0_DH(pkey); | |
1243 | int uid = DH_get_nid(dh); | |
1244 | ||
c829c23b RL |
1245 | if (uid != NID_undef) { |
1246 | const DH_NAMED_GROUP *dh_group = | |
1247 | ossl_ffc_uid_to_dh_named_group(uid); | |
1248 | ||
1249 | name = ossl_ffc_named_group_get_name(dh_group); | |
1250 | } | |
88bddad4 RL |
1251 | } |
1252 | break; | |
1253 | #endif | |
1254 | default: | |
1255 | break; | |
1256 | } | |
1257 | ||
1258 | if (gname_len != NULL) | |
1259 | *gname_len = (name == NULL ? 0 : strlen(name)); | |
1260 | if (name != NULL) { | |
1261 | if (gname != NULL) | |
1262 | OPENSSL_strlcpy(gname, name, gname_sz); | |
1263 | return 1; | |
1264 | } | |
1265 | } else if (evp_pkey_is_provided(pkey)) { | |
1266 | if (EVP_PKEY_get_utf8_string_param(pkey, OSSL_PKEY_PARAM_GROUP_NAME, | |
1267 | gname, gname_sz, gname_len)) | |
1268 | return 1; | |
1269 | } else { | |
1270 | ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_KEY); | |
1271 | return 0; | |
1272 | } | |
1273 | ||
1274 | ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_KEY_TYPE); | |
1275 | return 0; | |
1276 | } | |
1277 | ||
ecbb2fca DW |
1278 | int EVP_PKEY_supports_digest_nid(EVP_PKEY *pkey, int nid) |
1279 | { | |
1280 | int rv, default_nid; | |
1281 | ||
1282 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SUPPORTS_MD_NID, nid, NULL); | |
1283 | if (rv == -2) { | |
1284 | /* | |
1285 | * If there is a mandatory default digest and this isn't it, then | |
1286 | * the answer is 'no'. | |
1287 | */ | |
1288 | rv = EVP_PKEY_get_default_digest_nid(pkey, &default_nid); | |
1289 | if (rv == 2) | |
1290 | return (nid == default_nid); | |
1291 | /* zero is an error from EVP_PKEY_get_default_digest_nid() */ | |
1292 | if (rv == 0) | |
1293 | return -1; | |
1294 | } | |
1295 | return rv; | |
1296 | } | |
1297 | ||
5ac8fb58 MC |
1298 | int EVP_PKEY_set1_encoded_public_key(EVP_PKEY *pkey, const unsigned char *pub, |
1299 | size_t publen) | |
5d6aaf8a | 1300 | { |
76624df1 RL |
1301 | if (pkey != NULL && evp_pkey_is_provided(pkey)) |
1302 | return | |
1303 | EVP_PKEY_set_octet_string_param(pkey, | |
1304 | OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, | |
1305 | (unsigned char *)pub, publen); | |
6a9bd929 | 1306 | |
5ac8fb58 | 1307 | if (publen > INT_MAX) |
5d6aaf8a | 1308 | return 0; |
5ac8fb58 MC |
1309 | /* Historically this function was EVP_PKEY_set1_tls_encodedpoint */ |
1310 | if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, publen, | |
1311 | (void *)pub) <= 0) | |
5d6aaf8a DSH |
1312 | return 0; |
1313 | return 1; | |
1314 | } | |
1315 | ||
5ac8fb58 | 1316 | size_t EVP_PKEY_get1_encoded_public_key(EVP_PKEY *pkey, unsigned char **ppub) |
5d6aaf8a DSH |
1317 | { |
1318 | int rv; | |
6a9bd929 | 1319 | |
76624df1 RL |
1320 | if (pkey != NULL && evp_pkey_is_provided(pkey)) { |
1321 | size_t return_size = OSSL_PARAM_UNMODIFIED; | |
6a9bd929 | 1322 | |
76624df1 RL |
1323 | /* |
1324 | * We know that this is going to fail, but it will give us a size | |
1325 | * to allocate. | |
1326 | */ | |
1327 | EVP_PKEY_get_octet_string_param(pkey, | |
1328 | OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, | |
1329 | NULL, 0, &return_size); | |
1330 | if (return_size == OSSL_PARAM_UNMODIFIED) | |
6a9bd929 MC |
1331 | return 0; |
1332 | ||
76624df1 | 1333 | *ppub = OPENSSL_malloc(return_size); |
5ac8fb58 | 1334 | if (*ppub == NULL) |
6a9bd929 MC |
1335 | return 0; |
1336 | ||
76624df1 RL |
1337 | if (!EVP_PKEY_get_octet_string_param(pkey, |
1338 | OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, | |
1339 | *ppub, return_size, NULL)) | |
6a9bd929 | 1340 | return 0; |
76624df1 | 1341 | return return_size; |
6a9bd929 MC |
1342 | } |
1343 | ||
1344 | ||
5ac8fb58 | 1345 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppub); |
5d6aaf8a DSH |
1346 | if (rv <= 0) |
1347 | return 0; | |
1348 | return rv; | |
0f113f3e | 1349 | } |
e683582b | 1350 | |
f844f9eb | 1351 | #endif /* FIPS_MODULE */ |
e683582b | 1352 | |
f844f9eb | 1353 | /*- All methods below can also be used in FIPS_MODULE */ |
e683582b | 1354 | |
a8154452 RL |
1355 | /* |
1356 | * This reset function must be used very carefully, as it literally throws | |
1357 | * away everything in an EVP_PKEY without freeing them, and may cause leaks | |
8dc34b1f | 1358 | * of memory, what have you. |
a8154452 RL |
1359 | * The only reason we have this is to have the same code for EVP_PKEY_new() |
1360 | * and evp_pkey_downgrade(). | |
1361 | */ | |
4ce1025a RL |
1362 | static int evp_pkey_reset_unlocked(EVP_PKEY *pk) |
1363 | { | |
1364 | if (pk == NULL) | |
1365 | return 0; | |
1366 | ||
8dc34b1f DB |
1367 | if (pk->lock != NULL) { |
1368 | const size_t offset = (unsigned char *)&pk->lock - (unsigned char *)pk; | |
1369 | ||
1370 | memset(pk, 0, offset); | |
1371 | memset((unsigned char *)pk + offset + sizeof(pk->lock), | |
1372 | 0, | |
1373 | sizeof(*pk) - offset - sizeof(pk->lock)); | |
1374 | } | |
1375 | /* EVP_PKEY_new uses zalloc so no need to call memset if pk->lock is NULL */ | |
1376 | ||
4ce1025a RL |
1377 | pk->type = EVP_PKEY_NONE; |
1378 | pk->save_type = EVP_PKEY_NONE; | |
1379 | pk->references = 1; | |
1380 | pk->save_parameters = 1; | |
a8154452 | 1381 | |
4ce1025a RL |
1382 | return 1; |
1383 | } | |
1384 | ||
e683582b SL |
1385 | EVP_PKEY *EVP_PKEY_new(void) |
1386 | { | |
1387 | EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret)); | |
1388 | ||
1389 | if (ret == NULL) { | |
9311d0c4 | 1390 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
e683582b SL |
1391 | return NULL; |
1392 | } | |
4ce1025a RL |
1393 | |
1394 | if (!evp_pkey_reset_unlocked(ret)) | |
1395 | goto err; | |
1396 | ||
8dc34b1f DB |
1397 | ret->lock = CRYPTO_THREAD_lock_new(); |
1398 | if (ret->lock == NULL) { | |
1399 | EVPerr(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
1400 | goto err; | |
1401 | } | |
1402 | ||
f844f9eb | 1403 | #ifndef FIPS_MODULE |
ff1f7cde | 1404 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, ret, &ret->ex_data)) { |
9311d0c4 | 1405 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
ff1f7cde | 1406 | goto err; |
e683582b | 1407 | } |
ff1f7cde | 1408 | #endif |
e683582b | 1409 | return ret; |
ff1f7cde AT |
1410 | |
1411 | err: | |
1412 | CRYPTO_THREAD_lock_free(ret->lock); | |
1413 | OPENSSL_free(ret); | |
1414 | return NULL; | |
e683582b SL |
1415 | } |
1416 | ||
8243d8d1 RL |
1417 | /* |
1418 | * Setup a public key management method. | |
1419 | * | |
1420 | * For legacy keys, either |type| or |str| is expected to have the type | |
1421 | * information. In this case, the setup consists of finding an ASN1 method | |
1422 | * and potentially an ENGINE, and setting those fields in |pkey|. | |
1423 | * | |
1424 | * For provider side keys, |keymgmt| is expected to be non-NULL. In this | |
1425 | * case, the setup consists of setting the |keymgmt| field in |pkey|. | |
1426 | * | |
1427 | * If pkey is NULL just return 1 or 0 if the key management method exists. | |
1428 | */ | |
1429 | ||
1430 | static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str, | |
1431 | int len, EVP_KEYMGMT *keymgmt) | |
1432 | { | |
f844f9eb | 1433 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1434 | const EVP_PKEY_ASN1_METHOD *ameth = NULL; |
1435 | ENGINE **eptr = (e == NULL) ? &e : NULL; | |
1436 | #endif | |
1437 | ||
1438 | /* | |
1439 | * The setups can't set both legacy and provider side methods. | |
1440 | * It is forbidden | |
1441 | */ | |
1442 | if (!ossl_assert(type == EVP_PKEY_NONE || keymgmt == NULL) | |
1443 | || !ossl_assert(e == NULL || keymgmt == NULL)) { | |
1444 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1445 | return 0; | |
1446 | } | |
1447 | ||
1448 | if (pkey != NULL) { | |
1449 | int free_it = 0; | |
1450 | ||
f844f9eb | 1451 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1452 | free_it = free_it || pkey->pkey.ptr != NULL; |
1453 | #endif | |
1454 | free_it = free_it || pkey->keydata != NULL; | |
1455 | if (free_it) | |
1456 | evp_pkey_free_it(pkey); | |
f844f9eb | 1457 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1458 | /* |
1459 | * If key type matches and a method exists then this lookup has | |
1460 | * succeeded once so just indicate success. | |
1461 | */ | |
1462 | if (pkey->type != EVP_PKEY_NONE | |
1463 | && type == pkey->save_type | |
1464 | && pkey->ameth != NULL) | |
1465 | return 1; | |
1466 | # ifndef OPENSSL_NO_ENGINE | |
1467 | /* If we have ENGINEs release them */ | |
1468 | ENGINE_finish(pkey->engine); | |
1469 | pkey->engine = NULL; | |
1470 | ENGINE_finish(pkey->pmeth_engine); | |
1471 | pkey->pmeth_engine = NULL; | |
1472 | # endif | |
1473 | #endif | |
1474 | } | |
f844f9eb | 1475 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1476 | if (str != NULL) |
1477 | ameth = EVP_PKEY_asn1_find_str(eptr, str, len); | |
1478 | else if (type != EVP_PKEY_NONE) | |
1479 | ameth = EVP_PKEY_asn1_find(eptr, type); | |
1480 | # ifndef OPENSSL_NO_ENGINE | |
1481 | if (pkey == NULL && eptr != NULL) | |
1482 | ENGINE_finish(e); | |
1483 | # endif | |
1484 | #endif | |
1485 | ||
1486 | ||
1487 | { | |
1488 | int check = 1; | |
1489 | ||
f844f9eb | 1490 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1491 | check = check && ameth == NULL; |
1492 | #endif | |
1493 | check = check && keymgmt == NULL; | |
1494 | if (check) { | |
9311d0c4 | 1495 | ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM); |
8243d8d1 RL |
1496 | return 0; |
1497 | } | |
1498 | } | |
1499 | if (pkey != NULL) { | |
1500 | if (keymgmt != NULL && !EVP_KEYMGMT_up_ref(keymgmt)) { | |
1501 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1502 | return 0; | |
1503 | } | |
1504 | ||
1505 | pkey->keymgmt = keymgmt; | |
1506 | ||
1507 | pkey->save_type = type; | |
1508 | pkey->type = type; | |
1509 | ||
f844f9eb | 1510 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1511 | /* |
1512 | * If the internal "origin" key is provider side, don't save |ameth|. | |
1513 | * The main reason is that |ameth| is one factor to detect that the | |
1514 | * internal "origin" key is a legacy one. | |
1515 | */ | |
1516 | if (keymgmt == NULL) | |
1517 | pkey->ameth = ameth; | |
1518 | pkey->engine = e; | |
1519 | ||
1520 | /* | |
5e5bc836 RL |
1521 | * The EVP_PKEY_ASN1_METHOD |pkey_id| retains its legacy key purpose |
1522 | * for any key type that has a legacy implementation, regardless of | |
1523 | * if the internal key is a legacy or a provider side one. When | |
1524 | * there is no legacy implementation for the key, the type becomes | |
1525 | * EVP_PKEY_KEYMGMT, which indicates that one should be cautious | |
1526 | * with functions that expect legacy internal keys. | |
8243d8d1 | 1527 | */ |
5e5bc836 RL |
1528 | if (ameth != NULL) |
1529 | pkey->type = ameth->pkey_id; | |
1530 | else | |
1531 | pkey->type = EVP_PKEY_KEYMGMT; | |
8243d8d1 RL |
1532 | #endif |
1533 | } | |
1534 | return 1; | |
1535 | } | |
1536 | ||
f844f9eb | 1537 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1538 | static void find_ameth(const char *name, void *data) |
1539 | { | |
1540 | const char **str = data; | |
1541 | ||
1542 | /* | |
1543 | * The error messages from pkey_set_type() are uninteresting here, | |
1544 | * and misleading. | |
1545 | */ | |
1546 | ERR_set_mark(); | |
1547 | ||
1548 | if (pkey_set_type(NULL, NULL, EVP_PKEY_NONE, name, strlen(name), | |
1549 | NULL)) { | |
1550 | if (str[0] == NULL) | |
1551 | str[0] = name; | |
1552 | else if (str[1] == NULL) | |
1553 | str[1] = name; | |
1554 | } | |
1555 | ||
1556 | ERR_pop_to_mark(); | |
1557 | } | |
1558 | #endif | |
1559 | ||
1560 | int EVP_PKEY_set_type_by_keymgmt(EVP_PKEY *pkey, EVP_KEYMGMT *keymgmt) | |
1561 | { | |
f844f9eb | 1562 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1563 | # define EVP_PKEY_TYPE_STR str[0] |
1564 | # define EVP_PKEY_TYPE_STRLEN (str[0] == NULL ? -1 : (int)strlen(str[0])) | |
1565 | /* | |
1566 | * Find at most two strings that have an associated EVP_PKEY_ASN1_METHOD | |
1567 | * Ideally, only one should be found. If two (or more) are found, the | |
1568 | * match is ambiguous. This should never happen, but... | |
1569 | */ | |
1570 | const char *str[2] = { NULL, NULL }; | |
1571 | ||
1572 | EVP_KEYMGMT_names_do_all(keymgmt, find_ameth, &str); | |
1573 | if (str[1] != NULL) { | |
1574 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1575 | return 0; | |
1576 | } | |
1577 | #else | |
1578 | # define EVP_PKEY_TYPE_STR NULL | |
1579 | # define EVP_PKEY_TYPE_STRLEN -1 | |
1580 | #endif | |
1581 | return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, | |
1582 | EVP_PKEY_TYPE_STR, EVP_PKEY_TYPE_STRLEN, | |
1583 | keymgmt); | |
1584 | ||
1585 | #undef EVP_PKEY_TYPE_STR | |
1586 | #undef EVP_PKEY_TYPE_STRLEN | |
1587 | } | |
1588 | ||
e683582b SL |
1589 | int EVP_PKEY_up_ref(EVP_PKEY *pkey) |
1590 | { | |
1591 | int i; | |
1592 | ||
1593 | if (CRYPTO_UP_REF(&pkey->references, &i, pkey->lock) <= 0) | |
1594 | return 0; | |
1595 | ||
1596 | REF_PRINT_COUNT("EVP_PKEY", pkey); | |
1597 | REF_ASSERT_ISNT(i < 2); | |
1598 | return ((i > 1) ? 1 : 0); | |
1599 | } | |
1600 | ||
f844f9eb | 1601 | #ifndef FIPS_MODULE |
62924755 | 1602 | void evp_pkey_free_legacy(EVP_PKEY *x) |
badf51c8 RL |
1603 | { |
1604 | if (x->ameth != NULL) { | |
ff3b59e1 | 1605 | if (x->ameth->pkey_free != NULL) |
badf51c8 RL |
1606 | x->ameth->pkey_free(x); |
1607 | x->pkey.ptr = NULL; | |
badf51c8 RL |
1608 | } |
1609 | # ifndef OPENSSL_NO_ENGINE | |
1610 | ENGINE_finish(x->engine); | |
1611 | x->engine = NULL; | |
1612 | ENGINE_finish(x->pmeth_engine); | |
1613 | x->pmeth_engine = NULL; | |
1614 | # endif | |
badf51c8 | 1615 | } |
f844f9eb | 1616 | #endif /* FIPS_MODULE */ |
badf51c8 | 1617 | |
e683582b SL |
1618 | static void evp_pkey_free_it(EVP_PKEY *x) |
1619 | { | |
1620 | /* internal function; x is never NULL */ | |
1621 | ||
0b07db6f | 1622 | evp_keymgmt_util_clear_operation_cache(x, 1); |
f844f9eb | 1623 | #ifndef FIPS_MODULE |
badf51c8 RL |
1624 | evp_pkey_free_legacy(x); |
1625 | #endif | |
e683582b | 1626 | |
3c6ed955 RL |
1627 | if (x->keymgmt != NULL) { |
1628 | evp_keymgmt_freedata(x->keymgmt, x->keydata); | |
1629 | EVP_KEYMGMT_free(x->keymgmt); | |
1630 | x->keymgmt = NULL; | |
1631 | x->keydata = NULL; | |
1632 | } | |
5e5bc836 | 1633 | x->type = EVP_PKEY_NONE; |
e683582b SL |
1634 | } |
1635 | ||
1636 | void EVP_PKEY_free(EVP_PKEY *x) | |
1637 | { | |
1638 | int i; | |
1639 | ||
1640 | if (x == NULL) | |
1641 | return; | |
1642 | ||
1643 | CRYPTO_DOWN_REF(&x->references, &i, x->lock); | |
1644 | REF_PRINT_COUNT("EVP_PKEY", x); | |
1645 | if (i > 0) | |
1646 | return; | |
1647 | REF_ASSERT_ISNT(i < 0); | |
1648 | evp_pkey_free_it(x); | |
f844f9eb | 1649 | #ifndef FIPS_MODULE |
ff1f7cde AT |
1650 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, x, &x->ex_data); |
1651 | #endif | |
e683582b | 1652 | CRYPTO_THREAD_lock_free(x->lock); |
f844f9eb | 1653 | #ifndef FIPS_MODULE |
e683582b SL |
1654 | sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free); |
1655 | #endif | |
1656 | OPENSSL_free(x); | |
1657 | } | |
1658 | ||
e683582b SL |
1659 | int EVP_PKEY_size(const EVP_PKEY *pkey) |
1660 | { | |
adc9f731 RL |
1661 | int size = 0; |
1662 | ||
6508e858 | 1663 | if (pkey != NULL) { |
adc9f731 | 1664 | size = pkey->cache.size; |
f844f9eb | 1665 | #ifndef FIPS_MODULE |
adc9f731 RL |
1666 | if (pkey->ameth != NULL && pkey->ameth->pkey_size != NULL) |
1667 | size = pkey->ameth->pkey_size(pkey); | |
1668 | #endif | |
6508e858 | 1669 | } |
030da844 | 1670 | return size < 0 ? 0 : size; |
e683582b | 1671 | } |
f6aa5774 | 1672 | |
b4250010 | 1673 | void *evp_pkey_export_to_provider(EVP_PKEY *pk, OSSL_LIB_CTX *libctx, |
3c6ed955 RL |
1674 | EVP_KEYMGMT **keymgmt, |
1675 | const char *propquery) | |
f6aa5774 RL |
1676 | { |
1677 | EVP_KEYMGMT *allocated_keymgmt = NULL; | |
1678 | EVP_KEYMGMT *tmp_keymgmt = NULL; | |
b305452f | 1679 | void *keydata = NULL; |
adc9f731 | 1680 | int check; |
f6aa5774 RL |
1681 | |
1682 | if (pk == NULL) | |
1683 | return NULL; | |
1684 | ||
adc9f731 RL |
1685 | /* No key data => nothing to export */ |
1686 | check = 1; | |
f844f9eb | 1687 | #ifndef FIPS_MODULE |
adc9f731 RL |
1688 | check = check && pk->pkey.ptr == NULL; |
1689 | #endif | |
1690 | check = check && pk->keydata == NULL; | |
1691 | if (check) | |
1692 | return NULL; | |
1693 | ||
f844f9eb | 1694 | #ifndef FIPS_MODULE |
3f7ce7f1 | 1695 | if (pk->pkey.ptr != NULL) { |
3f7ce7f1 | 1696 | /* |
3c6ed955 RL |
1697 | * If the legacy key doesn't have an dirty counter or export function, |
1698 | * give up | |
3f7ce7f1 | 1699 | */ |
3c6ed955 RL |
1700 | if (pk->ameth->dirty_cnt == NULL || pk->ameth->export_to == NULL) |
1701 | return NULL; | |
3f7ce7f1 RL |
1702 | } |
1703 | #endif | |
1704 | ||
3c6ed955 RL |
1705 | if (keymgmt != NULL) { |
1706 | tmp_keymgmt = *keymgmt; | |
1707 | *keymgmt = NULL; | |
1708 | } | |
1709 | ||
4b9e90f4 RL |
1710 | /* |
1711 | * If no keymgmt was given or found, get a default keymgmt. We do so by | |
1712 | * letting EVP_PKEY_CTX_new_from_pkey() do it for us, then we steal it. | |
1713 | */ | |
f6aa5774 | 1714 | if (tmp_keymgmt == NULL) { |
2ee4a50a | 1715 | EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk, propquery); |
f6aa5774 | 1716 | |
4b9e90f4 RL |
1717 | tmp_keymgmt = ctx->keymgmt; |
1718 | ctx->keymgmt = NULL; | |
f6aa5774 RL |
1719 | EVP_PKEY_CTX_free(ctx); |
1720 | } | |
1721 | ||
3c6ed955 | 1722 | /* If there's still no keymgmt to be had, give up */ |
3f7ce7f1 RL |
1723 | if (tmp_keymgmt == NULL) |
1724 | goto end; | |
f6aa5774 | 1725 | |
f844f9eb | 1726 | #ifndef FIPS_MODULE |
3f7ce7f1 | 1727 | if (pk->pkey.ptr != NULL) { |
3c6ed955 | 1728 | size_t i = 0; |
3f7ce7f1 RL |
1729 | |
1730 | /* | |
3c6ed955 RL |
1731 | * If the legacy "origin" hasn't changed since last time, we try |
1732 | * to find our keymgmt in the operation cache. If it has changed, | |
1733 | * |i| remains zero, and we will clear the cache further down. | |
3f7ce7f1 | 1734 | */ |
3c6ed955 | 1735 | if (pk->ameth->dirty_cnt(pk) == pk->dirty_cnt_copy) { |
0b07db6f MC |
1736 | if (!CRYPTO_THREAD_read_lock(pk->lock)) |
1737 | goto end; | |
3c6ed955 RL |
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; | |
0b07db6f | 1749 | CRYPTO_THREAD_unlock(pk->lock); |
3c6ed955 RL |
1750 | goto end; |
1751 | } | |
0b07db6f | 1752 | CRYPTO_THREAD_unlock(pk->lock); |
3f7ce7f1 RL |
1753 | } |
1754 | ||
1755 | /* | |
3c6ed955 RL |
1756 | * TODO(3.0) Right now, we assume we have ample space. We will have |
1757 | * to think about a cache aging scheme, though, if |i| indexes outside | |
1758 | * the array. | |
3f7ce7f1 | 1759 | */ |
3c6ed955 | 1760 | if (!ossl_assert(i < OSSL_NELEM(pk->operation_cache))) |
3f7ce7f1 RL |
1761 | goto end; |
1762 | ||
1763 | /* Make sure that the keymgmt key type matches the legacy NID */ | |
1764 | if (!ossl_assert(EVP_KEYMGMT_is_a(tmp_keymgmt, OBJ_nid2sn(pk->type)))) | |
1765 | goto end; | |
1766 | ||
1767 | if ((keydata = evp_keymgmt_newdata(tmp_keymgmt)) == NULL) | |
1768 | goto end; | |
1769 | ||
76e23fc5 | 1770 | if (!pk->ameth->export_to(pk, keydata, tmp_keymgmt, libctx, propquery)) { |
3f7ce7f1 RL |
1771 | evp_keymgmt_freedata(tmp_keymgmt, keydata); |
1772 | keydata = NULL; | |
1773 | goto end; | |
1774 | } | |
1775 | ||
3c6ed955 RL |
1776 | /* |
1777 | * If the dirty counter changed since last time, then clear the | |
1778 | * operation cache. In that case, we know that |i| is zero. Just | |
1779 | * in case this is a re-export, we increment then decrement the | |
1780 | * keymgmt reference counter. | |
1781 | */ | |
1782 | if (!EVP_KEYMGMT_up_ref(tmp_keymgmt)) { /* refcnt++ */ | |
1783 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1784 | keydata = NULL; | |
1785 | goto end; | |
1786 | } | |
0b07db6f MC |
1787 | |
1788 | if (!CRYPTO_THREAD_write_lock(pk->lock)) | |
1789 | goto end; | |
1790 | if (pk->ameth->dirty_cnt(pk) != pk->dirty_cnt_copy | |
1791 | && !evp_keymgmt_util_clear_operation_cache(pk, 0)) { | |
1792 | CRYPTO_THREAD_unlock(pk->lock); | |
1793 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1794 | keydata = NULL; | |
1795 | EVP_KEYMGMT_free(tmp_keymgmt); | |
1796 | goto end; | |
1797 | } | |
3c6ed955 RL |
1798 | EVP_KEYMGMT_free(tmp_keymgmt); /* refcnt-- */ |
1799 | ||
1800 | /* Add the new export to the operation cache */ | |
1801 | if (!evp_keymgmt_util_cache_keydata(pk, i, tmp_keymgmt, keydata)) { | |
0b07db6f | 1802 | CRYPTO_THREAD_unlock(pk->lock); |
3c6ed955 RL |
1803 | evp_keymgmt_freedata(tmp_keymgmt, keydata); |
1804 | keydata = NULL; | |
1805 | goto end; | |
1806 | } | |
3f7ce7f1 RL |
1807 | |
1808 | /* Synchronize the dirty count */ | |
1809 | pk->dirty_cnt_copy = pk->ameth->dirty_cnt(pk); | |
0b07db6f MC |
1810 | |
1811 | CRYPTO_THREAD_unlock(pk->lock); | |
3f7ce7f1 RL |
1812 | goto end; |
1813 | } | |
f844f9eb | 1814 | #endif /* FIPS_MODULE */ |
3f7ce7f1 RL |
1815 | |
1816 | keydata = evp_keymgmt_util_export_to_provider(pk, tmp_keymgmt); | |
1817 | ||
1818 | end: | |
f6aa5774 RL |
1819 | /* |
1820 | * If nothing was exported, |tmp_keymgmt| might point at a freed | |
1821 | * EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for | |
1822 | * the caller either way in that case. | |
1823 | */ | |
b305452f | 1824 | if (keydata == NULL) |
f6aa5774 RL |
1825 | tmp_keymgmt = NULL; |
1826 | ||
1827 | if (keymgmt != NULL) | |
1828 | *keymgmt = tmp_keymgmt; | |
1829 | ||
1830 | EVP_KEYMGMT_free(allocated_keymgmt); | |
b305452f | 1831 | return keydata; |
f6aa5774 | 1832 | } |
badf51c8 | 1833 | |
f844f9eb | 1834 | #ifndef FIPS_MODULE |
4ce1025a | 1835 | int evp_pkey_copy_downgraded(EVP_PKEY **dest, const EVP_PKEY *src) |
badf51c8 | 1836 | { |
4ce1025a RL |
1837 | if (!ossl_assert(dest != NULL)) |
1838 | return 0; | |
badf51c8 | 1839 | |
4ce1025a RL |
1840 | if (evp_pkey_is_assigned(src) && evp_pkey_is_provided(src)) { |
1841 | EVP_KEYMGMT *keymgmt = src->keymgmt; | |
1842 | void *keydata = src->keydata; | |
1843 | int type = src->type; | |
1844 | const char *keytype = NULL; | |
acb90ba8 | 1845 | |
4ce1025a RL |
1846 | keytype = evp_first_name(EVP_KEYMGMT_provider(keymgmt), |
1847 | keymgmt->name_id); | |
badf51c8 | 1848 | |
4ce1025a RL |
1849 | /* |
1850 | * If the type is EVP_PKEY_NONE, then we have a problem somewhere | |
1851 | * else in our code. If it's not one of the well known EVP_PKEY_xxx | |
1852 | * values, it should at least be EVP_PKEY_KEYMGMT at this point. | |
1853 | * TODO(3.0) remove this check when we're confident that the rest | |
1854 | * of the code treats this correctly. | |
1855 | */ | |
1856 | if (!ossl_assert(type != EVP_PKEY_NONE)) { | |
1857 | ERR_raise_data(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR, | |
1858 | "keymgmt key type = %s but legacy type = EVP_PKEY_NONE", | |
1859 | keytype); | |
1860 | return 0; | |
1861 | } | |
badf51c8 | 1862 | |
4ce1025a RL |
1863 | /* Prefer the legacy key type name for error reporting */ |
1864 | if (type != EVP_PKEY_KEYMGMT) | |
1865 | keytype = OBJ_nid2sn(type); | |
5e5bc836 | 1866 | |
4ce1025a RL |
1867 | /* Make sure we have a clean slate to copy into */ |
1868 | if (*dest == NULL) | |
1869 | *dest = EVP_PKEY_new(); | |
1870 | else | |
1871 | evp_pkey_free_it(*dest); | |
badf51c8 | 1872 | |
4ce1025a RL |
1873 | if (EVP_PKEY_set_type(*dest, type)) { |
1874 | /* If the key is typed but empty, we're done */ | |
1875 | if (keydata == NULL) | |
1876 | return 1; | |
629c72db | 1877 | |
4ce1025a RL |
1878 | if ((*dest)->ameth->import_from == NULL) { |
1879 | ERR_raise_data(ERR_LIB_EVP, EVP_R_NO_IMPORT_FUNCTION, | |
1880 | "key type = %s", keytype); | |
1881 | } else { | |
629c72db | 1882 | /* |
4ce1025a RL |
1883 | * We perform the export in the same libctx as the keymgmt |
1884 | * that we are using. | |
629c72db | 1885 | */ |
b4250010 | 1886 | OSSL_LIB_CTX *libctx = |
a829b735 | 1887 | ossl_provider_libctx(keymgmt->prov); |
4ce1025a RL |
1888 | EVP_PKEY_CTX *pctx = |
1889 | EVP_PKEY_CTX_new_from_pkey(libctx, *dest, NULL); | |
629c72db | 1890 | |
4ce1025a RL |
1891 | if (pctx == NULL) |
1892 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
629c72db | 1893 | |
4ce1025a RL |
1894 | if (pctx != NULL |
1895 | && evp_keymgmt_export(keymgmt, keydata, | |
1896 | OSSL_KEYMGMT_SELECT_ALL, | |
1897 | (*dest)->ameth->import_from, | |
1898 | pctx)) { | |
1899 | /* Synchronize the dirty count */ | |
1900 | (*dest)->dirty_cnt_copy = (*dest)->ameth->dirty_cnt(*dest); | |
1901 | ||
1902 | EVP_PKEY_CTX_free(pctx); | |
1903 | return 1; | |
1904 | } | |
1905 | EVP_PKEY_CTX_free(pctx); | |
629c72db | 1906 | } |
badf51c8 | 1907 | |
4ce1025a RL |
1908 | ERR_raise_data(ERR_LIB_EVP, EVP_R_KEYMGMT_EXPORT_FAILURE, |
1909 | "key type = %s", keytype); | |
1910 | } | |
badf51c8 RL |
1911 | } |
1912 | ||
4ce1025a RL |
1913 | return 0; |
1914 | } | |
1915 | ||
1916 | int evp_pkey_downgrade(EVP_PKEY *pk) | |
1917 | { | |
a8154452 | 1918 | EVP_PKEY tmp_copy; /* Stack allocated! */ |
a8154452 RL |
1919 | int rv = 0; |
1920 | ||
1921 | if (!ossl_assert(pk != NULL)) | |
1922 | return 0; | |
1923 | ||
1924 | /* | |
1925 | * Throughout this whole function, we must ensure that we lock / unlock | |
1926 | * the exact same lock. Note that we do pass it around a bit. | |
1927 | */ | |
1928 | if (!CRYPTO_THREAD_write_lock(pk->lock)) | |
1929 | return 0; | |
4ce1025a RL |
1930 | |
1931 | /* If this isn't an assigned provider side key, we're done */ | |
a8154452 RL |
1932 | if (!evp_pkey_is_assigned(pk) || !evp_pkey_is_provided(pk)) { |
1933 | rv = 1; | |
1934 | goto end; | |
1935 | } | |
4ce1025a | 1936 | |
badf51c8 | 1937 | /* |
4ce1025a RL |
1938 | * To be able to downgrade, we steal the contents of |pk|, then reset |
1939 | * it, and finally try to make it a downgraded copy. If any of that | |
1940 | * fails, we restore the copied contents into |pk|. | |
badf51c8 | 1941 | */ |
a8154452 | 1942 | tmp_copy = *pk; /* |tmp_copy| now owns THE lock */ |
4ce1025a RL |
1943 | |
1944 | if (evp_pkey_reset_unlocked(pk) | |
1945 | && evp_pkey_copy_downgraded(&pk, &tmp_copy)) { | |
a8154452 | 1946 | |
4ce1025a RL |
1947 | /* Restore the common attributes, then empty |tmp_copy| */ |
1948 | pk->references = tmp_copy.references; | |
4ce1025a RL |
1949 | pk->attributes = tmp_copy.attributes; |
1950 | pk->save_parameters = tmp_copy.save_parameters; | |
1951 | pk->ex_data = tmp_copy.ex_data; | |
1952 | ||
1953 | /* Ensure that stuff we've copied won't be freed */ | |
1954 | tmp_copy.lock = NULL; | |
1955 | tmp_copy.attributes = NULL; | |
1956 | memset(&tmp_copy.ex_data, 0, sizeof(tmp_copy.ex_data)); | |
1957 | ||
1958 | /* | |
1959 | * Save the provider side data in the operation cache, so they'll | |
1960 | * find it again. |pk| is new, so it's safe to assume slot zero | |
1961 | * is free. | |
1962 | * Note that evp_keymgmt_util_cache_keydata() increments keymgmt's | |
1963 | * reference count, so we need to decrement it, or there will be a | |
1964 | * leak. | |
1965 | */ | |
1966 | evp_keymgmt_util_cache_keydata(pk, 0, tmp_copy.keymgmt, | |
1967 | tmp_copy.keydata); | |
1968 | EVP_KEYMGMT_free(tmp_copy.keymgmt); | |
1969 | ||
1970 | /* | |
1971 | * Clear keymgmt and keydata from |tmp_copy|, or they'll get | |
1972 | * inadvertently freed. | |
1973 | */ | |
1974 | tmp_copy.keymgmt = NULL; | |
1975 | tmp_copy.keydata = NULL; | |
1976 | ||
1977 | evp_pkey_free_it(&tmp_copy); | |
a8154452 RL |
1978 | rv = 1; |
1979 | } else { | |
a8154452 | 1980 | /* Restore the original key */ |
8dc34b1f | 1981 | *pk = tmp_copy; |
acb90ba8 | 1982 | } |
4ce1025a | 1983 | |
a8154452 RL |
1984 | end: |
1985 | if (!CRYPTO_THREAD_unlock(pk->lock)) | |
1986 | return 0; | |
1987 | return rv; | |
badf51c8 | 1988 | } |
f844f9eb | 1989 | #endif /* FIPS_MODULE */ |
96ebe52e | 1990 | |
a73a1892 RL |
1991 | int EVP_PKEY_get_bn_param(const EVP_PKEY *pkey, const char *key_name, |
1992 | BIGNUM **bn) | |
96ebe52e SL |
1993 | { |
1994 | int ret = 0; | |
1995 | OSSL_PARAM params[2]; | |
1996 | unsigned char buffer[2048]; | |
96ebe52e SL |
1997 | unsigned char *buf = NULL; |
1998 | size_t buf_sz = 0; | |
1999 | ||
d82c7f3d RL |
2000 | if (key_name == NULL |
2001 | || bn == NULL | |
2002 | || pkey == NULL | |
2003 | || !evp_pkey_is_provided(pkey)) | |
96ebe52e SL |
2004 | return 0; |
2005 | ||
2006 | memset(buffer, 0, sizeof(buffer)); | |
2007 | params[0] = OSSL_PARAM_construct_BN(key_name, buffer, sizeof(buffer)); | |
96ebe52e | 2008 | params[1] = OSSL_PARAM_construct_end(); |
13e85fb3 | 2009 | if (!EVP_PKEY_get_params(pkey, params)) { |
99ea4f02 | 2010 | if (!OSSL_PARAM_modified(params) || params[0].return_size == 0) |
96ebe52e SL |
2011 | return 0; |
2012 | buf_sz = params[0].return_size; | |
2013 | /* | |
2014 | * If it failed because the buffer was too small then allocate the | |
2015 | * required buffer size and retry. | |
2016 | */ | |
2017 | buf = OPENSSL_zalloc(buf_sz); | |
2018 | if (buf == NULL) | |
2019 | return 0; | |
2020 | params[0].data = buf; | |
2021 | params[0].data_size = buf_sz; | |
2022 | ||
13e85fb3 | 2023 | if (!EVP_PKEY_get_params(pkey, params)) |
96ebe52e SL |
2024 | goto err; |
2025 | } | |
2026 | /* Fail if the param was not found */ | |
99ea4f02 | 2027 | if (!OSSL_PARAM_modified(params)) |
96ebe52e SL |
2028 | goto err; |
2029 | ret = OSSL_PARAM_get_BN(params, bn); | |
2030 | err: | |
2031 | OPENSSL_free(buf); | |
2032 | return ret; | |
2033 | } | |
2034 | ||
a73a1892 | 2035 | int EVP_PKEY_get_octet_string_param(const EVP_PKEY *pkey, const char *key_name, |
96ebe52e SL |
2036 | unsigned char *buf, size_t max_buf_sz, |
2037 | size_t *out_sz) | |
2038 | { | |
2039 | OSSL_PARAM params[2]; | |
76624df1 | 2040 | int ret1 = 0, ret2 = 0; |
96ebe52e | 2041 | |
d82c7f3d RL |
2042 | if (key_name == NULL |
2043 | || pkey == NULL | |
2044 | || !evp_pkey_is_provided(pkey)) | |
96ebe52e SL |
2045 | return 0; |
2046 | ||
2047 | params[0] = OSSL_PARAM_construct_octet_string(key_name, buf, max_buf_sz); | |
96ebe52e | 2048 | params[1] = OSSL_PARAM_construct_end(); |
76624df1 RL |
2049 | if ((ret1 = EVP_PKEY_get_params(pkey, params))) |
2050 | ret2 = OSSL_PARAM_modified(params); | |
2051 | if (ret2 && out_sz != NULL) | |
96ebe52e | 2052 | *out_sz = params[0].return_size; |
76624df1 | 2053 | return ret1 && ret2; |
96ebe52e SL |
2054 | } |
2055 | ||
a73a1892 | 2056 | int EVP_PKEY_get_utf8_string_param(const EVP_PKEY *pkey, const char *key_name, |
96ebe52e SL |
2057 | char *str, size_t max_buf_sz, |
2058 | size_t *out_sz) | |
2059 | { | |
2060 | OSSL_PARAM params[2]; | |
76624df1 | 2061 | int ret1 = 0, ret2 = 0; |
96ebe52e | 2062 | |
d82c7f3d | 2063 | if (key_name == NULL) |
96ebe52e SL |
2064 | return 0; |
2065 | ||
2066 | params[0] = OSSL_PARAM_construct_utf8_string(key_name, str, max_buf_sz); | |
96ebe52e | 2067 | params[1] = OSSL_PARAM_construct_end(); |
76624df1 RL |
2068 | if ((ret1 = EVP_PKEY_get_params(pkey, params))) |
2069 | ret2 = OSSL_PARAM_modified(params); | |
2070 | if (ret2 && out_sz != NULL) | |
96ebe52e | 2071 | *out_sz = params[0].return_size; |
76624df1 | 2072 | return ret1 && ret2; |
96ebe52e SL |
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 | 2079 | |
d82c7f3d | 2080 | if (key_name == NULL) |
96ebe52e SL |
2081 | return 0; |
2082 | ||
2083 | params[0] = OSSL_PARAM_construct_int(key_name, out); | |
96ebe52e | 2084 | params[1] = OSSL_PARAM_construct_end(); |
13e85fb3 RL |
2085 | return EVP_PKEY_get_params(pkey, params) |
2086 | && OSSL_PARAM_modified(params); | |
96ebe52e SL |
2087 | } |
2088 | ||
a73a1892 RL |
2089 | int EVP_PKEY_get_size_t_param(const EVP_PKEY *pkey, const char *key_name, |
2090 | size_t *out) | |
96ebe52e SL |
2091 | { |
2092 | OSSL_PARAM params[2]; | |
96ebe52e | 2093 | |
d82c7f3d | 2094 | if (key_name == NULL) |
96ebe52e SL |
2095 | return 0; |
2096 | ||
2097 | params[0] = OSSL_PARAM_construct_size_t(key_name, out); | |
96ebe52e | 2098 | params[1] = OSSL_PARAM_construct_end(); |
13e85fb3 RL |
2099 | return EVP_PKEY_get_params(pkey, params) |
2100 | && OSSL_PARAM_modified(params); | |
96ebe52e | 2101 | } |
98dbf2c1 SL |
2102 | |
2103 | int EVP_PKEY_set_int_param(EVP_PKEY *pkey, const char *key_name, int in) | |
2104 | { | |
2105 | OSSL_PARAM params[2]; | |
2106 | ||
d82c7f3d | 2107 | if (key_name == NULL) |
98dbf2c1 SL |
2108 | return 0; |
2109 | ||
2110 | params[0] = OSSL_PARAM_construct_int(key_name, &in); | |
2111 | params[1] = OSSL_PARAM_construct_end(); | |
13e85fb3 | 2112 | return EVP_PKEY_set_params(pkey, params); |
98dbf2c1 SL |
2113 | } |
2114 | ||
2115 | int EVP_PKEY_set_size_t_param(EVP_PKEY *pkey, const char *key_name, size_t in) | |
2116 | { | |
2117 | OSSL_PARAM params[2]; | |
2118 | ||
d82c7f3d | 2119 | if (key_name == NULL) |
98dbf2c1 SL |
2120 | return 0; |
2121 | ||
2122 | params[0] = OSSL_PARAM_construct_size_t(key_name, &in); | |
2123 | params[1] = OSSL_PARAM_construct_end(); | |
13e85fb3 | 2124 | return EVP_PKEY_set_params(pkey, params); |
98dbf2c1 SL |
2125 | } |
2126 | ||
13e85fb3 RL |
2127 | int EVP_PKEY_set_bn_param(EVP_PKEY *pkey, const char *key_name, |
2128 | const BIGNUM *bn) | |
98dbf2c1 SL |
2129 | { |
2130 | OSSL_PARAM params[2]; | |
2131 | unsigned char buffer[2048]; | |
2132 | int bsize = 0; | |
2133 | ||
d82c7f3d RL |
2134 | if (key_name == NULL |
2135 | || bn == NULL | |
2136 | || pkey == NULL | |
2137 | || !evp_pkey_is_provided(pkey)) | |
98dbf2c1 SL |
2138 | return 0; |
2139 | ||
2140 | bsize = BN_num_bytes(bn); | |
2141 | if (!ossl_assert(bsize <= (int)sizeof(buffer))) | |
2142 | return 0; | |
2143 | ||
2144 | if (BN_bn2nativepad(bn, buffer, bsize) < 0) | |
2145 | return 0; | |
2146 | params[0] = OSSL_PARAM_construct_BN(key_name, buffer, bsize); | |
2147 | params[1] = OSSL_PARAM_construct_end(); | |
13e85fb3 | 2148 | return EVP_PKEY_set_params(pkey, params); |
98dbf2c1 SL |
2149 | } |
2150 | ||
2151 | int EVP_PKEY_set_utf8_string_param(EVP_PKEY *pkey, const char *key_name, | |
13e85fb3 | 2152 | const char *str) |
98dbf2c1 SL |
2153 | { |
2154 | OSSL_PARAM params[2]; | |
2155 | ||
d82c7f3d | 2156 | if (key_name == NULL) |
98dbf2c1 SL |
2157 | return 0; |
2158 | ||
13e85fb3 | 2159 | params[0] = OSSL_PARAM_construct_utf8_string(key_name, (char *)str, 0); |
98dbf2c1 | 2160 | params[1] = OSSL_PARAM_construct_end(); |
13e85fb3 | 2161 | return EVP_PKEY_set_params(pkey, params); |
98dbf2c1 SL |
2162 | } |
2163 | ||
2164 | int EVP_PKEY_set_octet_string_param(EVP_PKEY *pkey, const char *key_name, | |
13e85fb3 | 2165 | const unsigned char *buf, size_t bsize) |
98dbf2c1 SL |
2166 | { |
2167 | OSSL_PARAM params[2]; | |
2168 | ||
d82c7f3d | 2169 | if (key_name == NULL) |
98dbf2c1 SL |
2170 | return 0; |
2171 | ||
13e85fb3 RL |
2172 | params[0] = OSSL_PARAM_construct_octet_string(key_name, |
2173 | (unsigned char *)buf, bsize); | |
98dbf2c1 | 2174 | params[1] = OSSL_PARAM_construct_end(); |
13e85fb3 | 2175 | return EVP_PKEY_set_params(pkey, params); |
98dbf2c1 SL |
2176 | } |
2177 | ||
d82c7f3d | 2178 | const OSSL_PARAM *EVP_PKEY_settable_params(const EVP_PKEY *pkey) |
98dbf2c1 | 2179 | { |
d82c7f3d RL |
2180 | return (pkey != NULL && evp_pkey_is_provided(pkey)) |
2181 | ? EVP_KEYMGMT_settable_params(pkey->keymgmt) | |
2182 | : NULL; | |
98dbf2c1 SL |
2183 | } |
2184 | ||
2185 | int EVP_PKEY_set_params(EVP_PKEY *pkey, OSSL_PARAM params[]) | |
2186 | { | |
f4a3799c | 2187 | if (pkey == NULL) |
98dbf2c1 | 2188 | return 0; |
f4a3799c RL |
2189 | |
2190 | pkey->dirty_cnt++; | |
2191 | return evp_pkey_is_provided(pkey) | |
2192 | && evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params); | |
98dbf2c1 | 2193 | } |
3d34bedf | 2194 | |
13e85fb3 RL |
2195 | const OSSL_PARAM *EVP_PKEY_gettable_params(const EVP_PKEY *pkey) |
2196 | { | |
d82c7f3d RL |
2197 | return (pkey != NULL && evp_pkey_is_provided(pkey)) |
2198 | ? EVP_KEYMGMT_gettable_params(pkey->keymgmt) | |
2199 | : NULL; | |
13e85fb3 RL |
2200 | } |
2201 | ||
2202 | int EVP_PKEY_get_params(const EVP_PKEY *pkey, OSSL_PARAM params[]) | |
2203 | { | |
2204 | return pkey != NULL | |
2205 | && evp_pkey_is_provided(pkey) | |
2206 | && evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params); | |
2207 | } | |
2208 | ||
3d34bedf MC |
2209 | #ifndef FIPS_MODULE |
2210 | int EVP_PKEY_get_ec_point_conv_form(const EVP_PKEY *pkey) | |
2211 | { | |
2212 | char name[80]; | |
2213 | size_t name_len; | |
2214 | ||
2215 | if (pkey == NULL) | |
2216 | return 0; | |
2217 | ||
2218 | if (pkey->keymgmt == NULL | |
2219 | || pkey->keydata == NULL) { | |
2220 | #ifndef OPENSSL_NO_EC | |
2221 | /* Might work through the legacy route */ | |
2222 | EC_KEY *ec = EVP_PKEY_get0_EC_KEY(pkey); | |
2223 | ||
2224 | if (ec == NULL) | |
2225 | return 0; | |
2226 | ||
2227 | return EC_KEY_get_conv_form(ec); | |
2228 | #else | |
2229 | return 0; | |
2230 | #endif | |
2231 | } | |
2232 | ||
2233 | if (!EVP_PKEY_get_utf8_string_param(pkey, | |
2234 | OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT, | |
2235 | name, sizeof(name), &name_len)) | |
2236 | return 0; | |
2237 | ||
2238 | if (strcmp(name, "uncompressed") == 0) | |
2239 | return POINT_CONVERSION_UNCOMPRESSED; | |
2240 | ||
2241 | if (strcmp(name, "compressed") == 0) | |
2242 | return POINT_CONVERSION_COMPRESSED; | |
2243 | ||
2244 | if (strcmp(name, "hybrid") == 0) | |
2245 | return POINT_CONVERSION_HYBRID; | |
2246 | ||
2247 | return 0; | |
2248 | } | |
2249 | ||
2250 | int EVP_PKEY_get_field_type(const EVP_PKEY *pkey) | |
2251 | { | |
2252 | char fstr[80]; | |
2253 | size_t fstrlen; | |
2254 | ||
2255 | if (pkey == NULL) | |
2256 | return 0; | |
2257 | ||
2258 | if (pkey->keymgmt == NULL | |
2259 | || pkey->keydata == NULL) { | |
2260 | #ifndef OPENSSL_NO_EC | |
2261 | /* Might work through the legacy route */ | |
2262 | EC_KEY *ec = EVP_PKEY_get0_EC_KEY(pkey); | |
2263 | const EC_GROUP *grp; | |
2264 | ||
2265 | if (ec == NULL) | |
2266 | return 0; | |
2267 | grp = EC_KEY_get0_group(ec); | |
82a46200 TM |
2268 | if (grp == NULL) |
2269 | return 0; | |
3d34bedf MC |
2270 | |
2271 | return EC_GROUP_get_field_type(grp); | |
2272 | #else | |
2273 | return 0; | |
2274 | #endif | |
2275 | } | |
2276 | ||
2277 | if (!EVP_PKEY_get_utf8_string_param(pkey, OSSL_PKEY_PARAM_EC_FIELD_TYPE, | |
2278 | fstr, sizeof(fstr), &fstrlen)) | |
2279 | return 0; | |
2280 | ||
2281 | if (strcmp(fstr, SN_X9_62_prime_field) == 0) | |
2282 | return NID_X9_62_prime_field; | |
2283 | else if (strcmp(fstr, SN_X9_62_characteristic_two_field)) | |
2284 | return NID_X9_62_characteristic_two_field; | |
2285 | ||
2286 | return 0; | |
2287 | } | |
2288 | #endif |