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Commit | Line | Data |
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62867571 | 1 | /* |
33388b44 | 2 | * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
4a8b0c55 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
62867571 RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
d02b48c6 RE |
8 | */ |
9 | ||
f41ac0ee P |
10 | /* |
11 | * DSA low level APIs are deprecated for public use, but still ok for | |
12 | * internal use. | |
13 | */ | |
14 | #include "internal/deprecated.h" | |
15 | ||
d02b48c6 | 16 | #include <stdio.h> |
b39fc560 | 17 | #include "internal/cryptlib.h" |
cd420b0b | 18 | #include "internal/refcount.h" |
4d94ae00 BM |
19 | #include <openssl/bn.h> |
20 | #include <openssl/err.h> | |
ec577822 BM |
21 | #include <openssl/objects.h> |
22 | #include <openssl/evp.h> | |
ec577822 | 23 | #include <openssl/x509.h> |
3c27208f RS |
24 | #include <openssl/rsa.h> |
25 | #include <openssl/dsa.h> | |
26 | #include <openssl/dh.h> | |
4f76d62f | 27 | #include <openssl/ec.h> |
b3831fbb | 28 | #include <openssl/cmac.h> |
3c27208f | 29 | #include <openssl/engine.h> |
e74bd290 | 30 | #include <openssl/params.h> |
1c4f340d | 31 | #include <openssl/param_build.h> |
ece9304c | 32 | #include <openssl/encoder.h> |
e74bd290 | 33 | #include <openssl/core_names.h> |
01b8b3c7 | 34 | |
25f2138b DMSP |
35 | #include "crypto/asn1.h" |
36 | #include "crypto/evp.h" | |
7c664b1f | 37 | #include "crypto/ecx.h" |
c2041da8 | 38 | #include "internal/evp.h" |
e74bd290 | 39 | #include "internal/provider.h" |
f6aa5774 | 40 | #include "evp_local.h" |
852c2ed2 | 41 | DEFINE_STACK_OF(X509_ATTRIBUTE) |
18e377b4 | 42 | |
4f76d62f RL |
43 | #include "crypto/ec.h" |
44 | ||
45 | /* TODO remove this when the EVP_PKEY_is_a() #legacy support hack is removed */ | |
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 | { |
6508e858 RL |
59 | if (pkey != NULL) { |
60 | if (pkey->ameth == NULL) | |
61 | return pkey->cache.bits; | |
62 | else if (pkey->ameth->pkey_bits) | |
63 | return pkey->ameth->pkey_bits(pkey); | |
64 | } | |
0f113f3e MC |
65 | return 0; |
66 | } | |
58964a49 | 67 | |
2514fa79 | 68 | int EVP_PKEY_security_bits(const EVP_PKEY *pkey) |
0f113f3e MC |
69 | { |
70 | if (pkey == NULL) | |
71 | return 0; | |
6508e858 RL |
72 | if (pkey->ameth == NULL) |
73 | return pkey->cache.security_bits; | |
74 | if (pkey->ameth->pkey_security_bits == NULL) | |
0f113f3e MC |
75 | return -2; |
76 | return pkey->ameth->pkey_security_bits(pkey); | |
77 | } | |
2514fa79 | 78 | |
6b691a5c | 79 | int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode) |
0f113f3e | 80 | { |
e683582b | 81 | # ifndef OPENSSL_NO_DSA |
0f113f3e MC |
82 | if (pkey->type == EVP_PKEY_DSA) { |
83 | int ret = pkey->save_parameters; | |
84 | ||
85 | if (mode >= 0) | |
86 | pkey->save_parameters = mode; | |
26a7d938 | 87 | return ret; |
0f113f3e | 88 | } |
e683582b SL |
89 | # endif |
90 | # ifndef OPENSSL_NO_EC | |
0f113f3e MC |
91 | if (pkey->type == EVP_PKEY_EC) { |
92 | int ret = pkey->save_parameters; | |
93 | ||
94 | if (mode >= 0) | |
95 | pkey->save_parameters = mode; | |
26a7d938 | 96 | return ret; |
0f113f3e | 97 | } |
e683582b | 98 | # endif |
26a7d938 | 99 | return 0; |
0f113f3e | 100 | } |
d02b48c6 | 101 | |
ff1f7cde AT |
102 | int EVP_PKEY_set_ex_data(EVP_PKEY *key, int idx, void *arg) |
103 | { | |
104 | return CRYPTO_set_ex_data(&key->ex_data, idx, arg); | |
105 | } | |
106 | ||
107 | void *EVP_PKEY_get_ex_data(const EVP_PKEY *key, int idx) | |
108 | { | |
109 | return CRYPTO_get_ex_data(&key->ex_data, idx); | |
110 | } | |
111 | ||
a8b72844 | 112 | int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) |
0f113f3e | 113 | { |
ff3b59e1 RL |
114 | /* |
115 | * TODO: clean up legacy stuff from this function when legacy support | |
116 | * is gone. | |
117 | */ | |
118 | ||
119 | /* | |
acb90ba8 RL |
120 | * If |to| is a legacy key and |from| isn't, we must downgrade |from|. |
121 | * If that fails, this function fails. | |
ff3b59e1 | 122 | */ |
5e5bc836 | 123 | if (evp_pkey_is_legacy(to) && evp_pkey_is_provided(from)) |
acb90ba8 RL |
124 | if (!evp_pkey_downgrade((EVP_PKEY *)from)) |
125 | return 0; | |
126 | ||
127 | /* | |
128 | * Make sure |to| is typed. Content is less important at this early | |
129 | * stage. | |
130 | * | |
131 | * 1. If |to| is untyped, assign |from|'s key type to it. | |
132 | * 2. If |to| contains a legacy key, compare its |type| to |from|'s. | |
133 | * (|from| was already downgraded above) | |
134 | * | |
135 | * If |to| is a provided key, there's nothing more to do here, functions | |
136 | * like evp_keymgmt_util_copy() and evp_pkey_export_to_provider() called | |
137 | * further down help us find out if they are the same or not. | |
138 | */ | |
5e5bc836 RL |
139 | if (evp_pkey_is_blank(to)) { |
140 | if (evp_pkey_is_legacy(from)) { | |
ff3b59e1 RL |
141 | if (EVP_PKEY_set_type(to, from->type) == 0) |
142 | return 0; | |
acb90ba8 RL |
143 | } else { |
144 | if (EVP_PKEY_set_type_by_keymgmt(to, from->keymgmt) == 0) | |
145 | return 0; | |
146 | } | |
5e5bc836 | 147 | } else if (evp_pkey_is_legacy(to)) { |
acb90ba8 | 148 | if (to->type != from->type) { |
ff3b59e1 RL |
149 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_DIFFERENT_KEY_TYPES); |
150 | goto err; | |
151 | } | |
0f113f3e MC |
152 | } |
153 | ||
154 | if (EVP_PKEY_missing_parameters(from)) { | |
155 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_MISSING_PARAMETERS); | |
156 | goto err; | |
157 | } | |
f72f00d4 DSH |
158 | |
159 | if (!EVP_PKEY_missing_parameters(to)) { | |
c74aaa39 | 160 | if (EVP_PKEY_parameters_eq(to, from) == 1) |
f72f00d4 DSH |
161 | return 1; |
162 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_DIFFERENT_PARAMETERS); | |
163 | return 0; | |
164 | } | |
165 | ||
ff3b59e1 RL |
166 | /* For purely provided keys, we just call the keymgmt utility */ |
167 | if (to->keymgmt != NULL && from->keymgmt != NULL) | |
8158cf20 | 168 | return evp_keymgmt_util_copy(to, (EVP_PKEY *)from, SELECT_PARAMETERS); |
ff3b59e1 RL |
169 | |
170 | /* | |
171 | * If |to| is provided, we know that |from| is legacy at this point. | |
172 | * Try exporting |from| to |to|'s keymgmt, then use evp_keymgmt_copy() | |
173 | * to copy the appropriate data to |to|'s keydata. | |
174 | */ | |
175 | if (to->keymgmt != NULL) { | |
176 | EVP_KEYMGMT *to_keymgmt = to->keymgmt; | |
177 | void *from_keydata = | |
178 | evp_pkey_export_to_provider((EVP_PKEY *)from, NULL, &to_keymgmt, | |
179 | NULL); | |
180 | ||
acb90ba8 RL |
181 | /* |
182 | * If we get a NULL, it could be an internal error, or it could be | |
183 | * that there's a key mismatch. We're pretending the latter... | |
184 | */ | |
ff3b59e1 | 185 | if (from_keydata == NULL) { |
acb90ba8 | 186 | ERR_raise(ERR_LIB_EVP, EVP_R_DIFFERENT_KEY_TYPES); |
ff3b59e1 RL |
187 | return 0; |
188 | } | |
189 | return evp_keymgmt_copy(to->keymgmt, to->keydata, from_keydata, | |
8158cf20 | 190 | SELECT_PARAMETERS); |
ff3b59e1 RL |
191 | } |
192 | ||
193 | /* Both keys are legacy */ | |
194 | if (from->ameth != NULL && from->ameth->param_copy != NULL) | |
0f113f3e MC |
195 | return from->ameth->param_copy(to, from); |
196 | err: | |
197 | return 0; | |
198 | } | |
d02b48c6 | 199 | |
af0f0f3e | 200 | int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey) |
0f113f3e | 201 | { |
157ded39 RL |
202 | if (pkey != NULL) { |
203 | if (pkey->keymgmt != NULL) | |
8158cf20 | 204 | return !evp_keymgmt_util_has((EVP_PKEY *)pkey, SELECT_PARAMETERS); |
157ded39 RL |
205 | else if (pkey->ameth != NULL && pkey->ameth->param_missing != NULL) |
206 | return pkey->ameth->param_missing(pkey); | |
207 | } | |
0f113f3e MC |
208 | return 0; |
209 | } | |
d02b48c6 | 210 | |
1e9101c4 RL |
211 | /* |
212 | * This function is called for any mixture of keys except pure legacy pair. | |
213 | * TODO When legacy keys are gone, we replace a call to this functions with | |
214 | * a call to evp_keymgmt_util_match(). | |
215 | */ | |
216 | static int evp_pkey_cmp_any(const EVP_PKEY *a, const EVP_PKEY *b, | |
217 | int selection) | |
218 | { | |
219 | EVP_KEYMGMT *keymgmt1 = NULL, *keymgmt2 = NULL; | |
220 | void *keydata1 = NULL, *keydata2 = NULL, *tmp_keydata = NULL; | |
221 | ||
222 | /* If none of them are provided, this function shouldn't have been called */ | |
a57fc730 | 223 | if (!ossl_assert(evp_pkey_is_provided(a) || evp_pkey_is_provided(b))) |
1e9101c4 RL |
224 | return -2; |
225 | ||
226 | /* For purely provided keys, we just call the keymgmt utility */ | |
a57fc730 | 227 | if (evp_pkey_is_provided(a) && evp_pkey_is_provided(b)) |
1e9101c4 RL |
228 | return evp_keymgmt_util_match((EVP_PKEY *)a, (EVP_PKEY *)b, selection); |
229 | ||
230 | /* | |
acb90ba8 RL |
231 | * At this point, one of them is provided, the other not. This allows |
232 | * us to compare types using legacy NIDs. | |
233 | */ | |
a57fc730 RL |
234 | if (evp_pkey_is_legacy(a) |
235 | && !EVP_KEYMGMT_is_a(b->keymgmt, OBJ_nid2sn(a->type))) | |
236 | return -1; /* not the same key type */ | |
237 | if (evp_pkey_is_legacy(b) | |
238 | && !EVP_KEYMGMT_is_a(a->keymgmt, OBJ_nid2sn(b->type))) | |
acb90ba8 RL |
239 | return -1; /* not the same key type */ |
240 | ||
241 | /* | |
242 | * We've determined that they both are the same keytype, so the next | |
243 | * step is to do a bit of cross export to ensure we have keydata for | |
244 | * both keys in the same keymgmt. | |
1e9101c4 RL |
245 | */ |
246 | keymgmt1 = a->keymgmt; | |
247 | keydata1 = a->keydata; | |
248 | keymgmt2 = b->keymgmt; | |
249 | keydata2 = b->keydata; | |
250 | ||
1e9101c4 RL |
251 | if (keymgmt2 != NULL && keymgmt2->match != NULL) { |
252 | tmp_keydata = | |
253 | evp_pkey_export_to_provider((EVP_PKEY *)a, NULL, &keymgmt2, NULL); | |
254 | if (tmp_keydata != NULL) { | |
255 | keymgmt1 = keymgmt2; | |
256 | keydata1 = tmp_keydata; | |
257 | } | |
258 | } | |
259 | if (tmp_keydata == NULL && keymgmt1 != NULL && keymgmt1->match != NULL) { | |
260 | tmp_keydata = | |
261 | evp_pkey_export_to_provider((EVP_PKEY *)b, NULL, &keymgmt1, NULL); | |
262 | if (tmp_keydata != NULL) { | |
263 | keymgmt2 = keymgmt1; | |
264 | keydata2 = tmp_keydata; | |
265 | } | |
266 | } | |
267 | ||
268 | /* If we still don't have matching keymgmt implementations, we give up */ | |
269 | if (keymgmt1 != keymgmt2) | |
270 | return -2; | |
271 | ||
a24b510c RL |
272 | /* If the keymgmt implementations are NULL, the export failed */ |
273 | if (keymgmt1 == NULL) | |
274 | return -2; | |
275 | ||
1e9101c4 RL |
276 | return evp_keymgmt_match(keymgmt1, keydata1, keydata2, selection); |
277 | } | |
278 | ||
c74aaa39 | 279 | #ifndef OPENSSL_NO_DEPRECATED_3_0 |
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 | } | |
284 | #endif | |
285 | ||
286 | int EVP_PKEY_parameters_eq(const EVP_PKEY *a, const EVP_PKEY *b) | |
0f113f3e | 287 | { |
1e9101c4 RL |
288 | /* |
289 | * TODO: clean up legacy stuff from this function when legacy support | |
290 | * is gone. | |
291 | */ | |
292 | ||
293 | if (a->keymgmt != NULL || b->keymgmt != NULL) | |
8158cf20 | 294 | return evp_pkey_cmp_any(a, b, SELECT_PARAMETERS); |
1e9101c4 RL |
295 | |
296 | /* All legacy keys */ | |
0f113f3e MC |
297 | if (a->type != b->type) |
298 | return -1; | |
1e9101c4 | 299 | if (a->ameth != NULL && a->ameth->param_cmp != NULL) |
0f113f3e MC |
300 | return a->ameth->param_cmp(a, b); |
301 | return -2; | |
302 | } | |
58964a49 | 303 | |
c74aaa39 | 304 | #ifndef OPENSSL_NO_DEPRECATED_3_0 |
af0f0f3e | 305 | int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b) |
c74aaa39 DDO |
306 | { |
307 | return EVP_PKEY_eq(a, b); | |
308 | } | |
309 | #endif | |
310 | ||
311 | int EVP_PKEY_eq(const EVP_PKEY *a, const EVP_PKEY *b) | |
0f113f3e | 312 | { |
1e9101c4 RL |
313 | /* |
314 | * TODO: clean up legacy stuff from this function when legacy support | |
315 | * is gone. | |
316 | */ | |
317 | ||
318 | if (a->keymgmt != NULL || b->keymgmt != NULL) | |
8158cf20 RL |
319 | return evp_pkey_cmp_any(a, b, (SELECT_PARAMETERS |
320 | | OSSL_KEYMGMT_SELECT_PUBLIC_KEY)); | |
1e9101c4 RL |
321 | |
322 | /* All legacy keys */ | |
0f113f3e MC |
323 | if (a->type != b->type) |
324 | return -1; | |
325 | ||
1e9101c4 | 326 | if (a->ameth != NULL) { |
0f113f3e MC |
327 | int ret; |
328 | /* Compare parameters if the algorithm has them */ | |
1e9101c4 | 329 | if (a->ameth->param_cmp != NULL) { |
0f113f3e MC |
330 | ret = a->ameth->param_cmp(a, b); |
331 | if (ret <= 0) | |
332 | return ret; | |
333 | } | |
334 | ||
1e9101c4 | 335 | if (a->ameth->pub_cmp != NULL) |
0f113f3e MC |
336 | return a->ameth->pub_cmp(a, b); |
337 | } | |
338 | ||
339 | return -2; | |
340 | } | |
e6526fbf | 341 | |
1c4f340d MC |
342 | |
343 | static EVP_PKEY *new_raw_key_int(OPENSSL_CTX *libctx, | |
344 | const char *strtype, | |
345 | const char *propq, | |
346 | int nidtype, | |
347 | ENGINE *e, | |
348 | const unsigned char *key, | |
349 | size_t len, | |
350 | int key_is_priv) | |
a08802ce | 351 | { |
1c4f340d MC |
352 | EVP_PKEY *pkey = NULL; |
353 | EVP_PKEY_CTX *ctx = NULL; | |
354 | const EVP_PKEY_ASN1_METHOD *ameth = NULL; | |
355 | int result = 0; | |
356 | ||
357 | # ifndef OPENSSL_NO_ENGINE | |
358 | /* Check if there is an Engine for this type */ | |
359 | if (e == NULL) { | |
360 | ENGINE *tmpe = NULL; | |
361 | ||
362 | if (strtype != NULL) | |
363 | ameth = EVP_PKEY_asn1_find_str(&tmpe, strtype, -1); | |
364 | else if (nidtype != EVP_PKEY_NONE) | |
365 | ameth = EVP_PKEY_asn1_find(&tmpe, nidtype); | |
366 | ||
367 | /* If tmpe is NULL then no engine is claiming to support this type */ | |
368 | if (tmpe == NULL) | |
369 | ameth = NULL; | |
370 | ||
371 | ENGINE_finish(tmpe); | |
372 | } | |
373 | # endif | |
a08802ce | 374 | |
1c4f340d MC |
375 | if (e == NULL && ameth == NULL) { |
376 | /* | |
377 | * No engine is claiming to support this type, so lets see if we have | |
378 | * a provider. | |
379 | */ | |
380 | ctx = EVP_PKEY_CTX_new_from_name(libctx, | |
381 | strtype != NULL ? strtype | |
382 | : OBJ_nid2sn(nidtype), | |
383 | propq); | |
384 | if (ctx == NULL) { | |
385 | EVPerr(0, ERR_R_MALLOC_FAILURE); | |
386 | goto err; | |
387 | } | |
388 | /* May fail if no provider available */ | |
389 | ERR_set_mark(); | |
390 | if (EVP_PKEY_key_fromdata_init(ctx) == 1) { | |
391 | OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
392 | ||
393 | ERR_clear_last_mark(); | |
394 | params[0] = OSSL_PARAM_construct_octet_string( | |
395 | key_is_priv ? OSSL_PKEY_PARAM_PRIV_KEY | |
396 | : OSSL_PKEY_PARAM_PUB_KEY, | |
397 | (void *)key, len); | |
398 | ||
399 | if (EVP_PKEY_fromdata(ctx, &pkey, params) != 1) { | |
400 | EVPerr(0, EVP_R_KEY_SETUP_FAILED); | |
401 | goto err; | |
402 | } | |
403 | ||
404 | EVP_PKEY_CTX_free(ctx); | |
405 | ||
406 | return pkey; | |
407 | } | |
408 | ERR_pop_to_mark(); | |
409 | /* else not supported so fallback to legacy */ | |
a08802ce MC |
410 | } |
411 | ||
1c4f340d MC |
412 | /* Legacy code path */ |
413 | ||
414 | pkey = EVP_PKEY_new(); | |
415 | if (pkey == NULL) { | |
416 | EVPerr(0, ERR_R_MALLOC_FAILURE); | |
a08802ce MC |
417 | goto err; |
418 | } | |
419 | ||
1c4f340d MC |
420 | if (!pkey_set_type(pkey, e, nidtype, strtype, -1, NULL)) { |
421 | /* EVPerr already called */ | |
a08802ce MC |
422 | goto err; |
423 | } | |
424 | ||
1c4f340d MC |
425 | if (!ossl_assert(pkey->ameth != NULL)) |
426 | goto err; | |
a08802ce | 427 | |
1c4f340d MC |
428 | if (key_is_priv) { |
429 | if (pkey->ameth->set_priv_key == NULL) { | |
430 | EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
431 | goto err; | |
432 | } | |
a08802ce | 433 | |
1c4f340d MC |
434 | if (!pkey->ameth->set_priv_key(pkey, key, len)) { |
435 | EVPerr(0, EVP_R_KEY_SETUP_FAILED); | |
436 | goto err; | |
437 | } | |
438 | } else { | |
439 | if (pkey->ameth->set_pub_key == NULL) { | |
440 | EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
441 | goto err; | |
442 | } | |
a08802ce | 443 | |
1c4f340d MC |
444 | if (!pkey->ameth->set_pub_key(pkey, key, len)) { |
445 | EVPerr(0, EVP_R_KEY_SETUP_FAILED); | |
446 | goto err; | |
447 | } | |
a08802ce MC |
448 | } |
449 | ||
1c4f340d MC |
450 | result = 1; |
451 | err: | |
452 | if (!result) { | |
453 | EVP_PKEY_free(pkey); | |
454 | pkey = NULL; | |
a08802ce | 455 | } |
1c4f340d MC |
456 | EVP_PKEY_CTX_free(ctx); |
457 | return pkey; | |
458 | } | |
a08802ce | 459 | |
1c4f340d MC |
460 | EVP_PKEY *EVP_PKEY_new_raw_private_key_with_libctx(OPENSSL_CTX *libctx, |
461 | const char *keytype, | |
462 | const char *propq, | |
463 | const unsigned char *priv, | |
464 | size_t len) | |
465 | { | |
466 | return new_raw_key_int(libctx, keytype, propq, EVP_PKEY_NONE, NULL, priv, | |
467 | len, 1); | |
468 | } | |
a08802ce | 469 | |
1c4f340d MC |
470 | EVP_PKEY *EVP_PKEY_new_raw_private_key(int type, ENGINE *e, |
471 | const unsigned char *priv, | |
472 | size_t len) | |
473 | { | |
474 | return new_raw_key_int(NULL, NULL, NULL, type, e, priv, len, 1); | |
475 | } | |
a08802ce | 476 | |
1c4f340d MC |
477 | EVP_PKEY *EVP_PKEY_new_raw_public_key_with_libctx(OPENSSL_CTX *libctx, |
478 | const char *keytype, | |
479 | const char *propq, | |
480 | const unsigned char *pub, | |
481 | size_t len) | |
482 | { | |
483 | return new_raw_key_int(libctx, keytype, propq, EVP_PKEY_NONE, NULL, pub, | |
484 | len, 0); | |
485 | } | |
486 | ||
487 | EVP_PKEY *EVP_PKEY_new_raw_public_key(int type, ENGINE *e, | |
488 | const unsigned char *pub, | |
489 | size_t len) | |
490 | { | |
491 | return new_raw_key_int(NULL, NULL, NULL, type, e, pub, len, 0); | |
a08802ce MC |
492 | } |
493 | ||
c19d8978 MC |
494 | struct raw_key_details_st |
495 | { | |
496 | unsigned char **key; | |
497 | size_t *len; | |
498 | int selection; | |
499 | }; | |
500 | ||
501 | static OSSL_CALLBACK get_raw_key_details; | |
502 | static int get_raw_key_details(const OSSL_PARAM params[], void *arg) | |
503 | { | |
504 | const OSSL_PARAM *p = NULL; | |
505 | struct raw_key_details_st *raw_key = arg; | |
506 | ||
507 | if (raw_key->selection == OSSL_KEYMGMT_SELECT_PRIVATE_KEY) { | |
508 | if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PRIV_KEY)) | |
509 | != NULL) | |
510 | return OSSL_PARAM_get_octet_string(p, (void **)raw_key->key, | |
511 | SIZE_MAX, raw_key->len); | |
512 | } else if (raw_key->selection == OSSL_KEYMGMT_SELECT_PUBLIC_KEY) { | |
513 | if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PUB_KEY)) | |
514 | != NULL) | |
515 | return OSSL_PARAM_get_octet_string(p, (void **)raw_key->key, | |
516 | SIZE_MAX, raw_key->len); | |
517 | } | |
518 | ||
519 | return 0; | |
520 | } | |
521 | ||
0d124b0a MC |
522 | int EVP_PKEY_get_raw_private_key(const EVP_PKEY *pkey, unsigned char *priv, |
523 | size_t *len) | |
524 | { | |
c19d8978 MC |
525 | if (pkey->keymgmt != NULL) { |
526 | struct raw_key_details_st raw_key; | |
527 | ||
528 | raw_key.key = priv == NULL ? NULL : &priv; | |
529 | raw_key.len = len; | |
530 | raw_key.selection = OSSL_KEYMGMT_SELECT_PRIVATE_KEY; | |
531 | ||
532 | return evp_keymgmt_export(pkey->keymgmt, pkey->keydata, | |
533 | OSSL_KEYMGMT_SELECT_PRIVATE_KEY, | |
534 | get_raw_key_details, &raw_key); | |
535 | } | |
536 | ||
537 | if (pkey->ameth == NULL) { | |
538 | EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
539 | return 0; | |
540 | } | |
541 | ||
542 | if (pkey->ameth->get_priv_key == NULL) { | |
543 | EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
0d124b0a MC |
544 | return 0; |
545 | } | |
546 | ||
547 | if (!pkey->ameth->get_priv_key(pkey, priv, len)) { | |
c19d8978 | 548 | EVPerr(0, EVP_R_GET_RAW_KEY_FAILED); |
0d124b0a MC |
549 | return 0; |
550 | } | |
551 | ||
552 | return 1; | |
553 | } | |
554 | ||
555 | int EVP_PKEY_get_raw_public_key(const EVP_PKEY *pkey, unsigned char *pub, | |
556 | size_t *len) | |
557 | { | |
c19d8978 MC |
558 | if (pkey->keymgmt != NULL) { |
559 | struct raw_key_details_st raw_key; | |
560 | ||
561 | raw_key.key = pub == NULL ? NULL : &pub; | |
562 | raw_key.len = len; | |
563 | raw_key.selection = OSSL_KEYMGMT_SELECT_PUBLIC_KEY; | |
564 | ||
565 | return evp_keymgmt_export(pkey->keymgmt, pkey->keydata, | |
566 | OSSL_KEYMGMT_SELECT_PUBLIC_KEY, | |
567 | get_raw_key_details, &raw_key); | |
568 | } | |
569 | ||
570 | if (pkey->ameth == NULL) { | |
571 | EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
572 | return 0; | |
573 | } | |
574 | ||
0d124b0a MC |
575 | if (pkey->ameth->get_pub_key == NULL) { |
576 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY, | |
577 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
578 | return 0; | |
579 | } | |
580 | ||
581 | if (!pkey->ameth->get_pub_key(pkey, pub, len)) { | |
582 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY, EVP_R_GET_RAW_KEY_FAILED); | |
583 | return 0; | |
584 | } | |
585 | ||
586 | return 1; | |
587 | } | |
588 | ||
b3831fbb MC |
589 | EVP_PKEY *EVP_PKEY_new_CMAC_key(ENGINE *e, const unsigned char *priv, |
590 | size_t len, const EVP_CIPHER *cipher) | |
591 | { | |
e683582b SL |
592 | # ifndef OPENSSL_NO_CMAC |
593 | # ifndef OPENSSL_NO_ENGINE | |
9a7846df | 594 | const char *engine_id = e != NULL ? ENGINE_get_id(e) : NULL; |
e683582b | 595 | # endif |
e74bd290 RL |
596 | const char *cipher_name = EVP_CIPHER_name(cipher); |
597 | const OSSL_PROVIDER *prov = EVP_CIPHER_provider(cipher); | |
598 | OPENSSL_CTX *libctx = | |
599 | prov == NULL ? NULL : ossl_provider_library_context(prov); | |
b3831fbb | 600 | EVP_PKEY *ret = EVP_PKEY_new(); |
81ff9eeb | 601 | EVP_MAC *cmac = EVP_MAC_fetch(libctx, OSSL_MAC_NAME_CMAC, NULL); |
865adf97 | 602 | EVP_MAC_CTX *cmctx = cmac != NULL ? EVP_MAC_CTX_new(cmac) : NULL; |
e74bd290 RL |
603 | OSSL_PARAM params[4]; |
604 | size_t paramsn = 0; | |
b3831fbb MC |
605 | |
606 | if (ret == NULL | |
8243d8d1 RL |
607 | || cmctx == NULL |
608 | || !pkey_set_type(ret, e, EVP_PKEY_CMAC, NULL, -1, NULL)) { | |
b3831fbb MC |
609 | /* EVPerr already called */ |
610 | goto err; | |
611 | } | |
612 | ||
e683582b | 613 | # ifndef OPENSSL_NO_ENGINE |
9a7846df | 614 | if (engine_id != NULL) |
e74bd290 | 615 | params[paramsn++] = |
69db3044 | 616 | OSSL_PARAM_construct_utf8_string("engine", (char *)engine_id, 0); |
e683582b | 617 | # endif |
3be06e0d | 618 | |
e74bd290 | 619 | params[paramsn++] = |
703170d4 | 620 | OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_CIPHER, |
7f588d20 | 621 | (char *)cipher_name, 0); |
e74bd290 RL |
622 | params[paramsn++] = |
623 | OSSL_PARAM_construct_octet_string(OSSL_MAC_PARAM_KEY, | |
624 | (char *)priv, len); | |
625 | params[paramsn] = OSSL_PARAM_construct_end(); | |
626 | ||
865adf97 | 627 | if (!EVP_MAC_CTX_set_params(cmctx, params)) { |
b3831fbb MC |
628 | EVPerr(EVP_F_EVP_PKEY_NEW_CMAC_KEY, EVP_R_KEY_SETUP_FAILED); |
629 | goto err; | |
630 | } | |
631 | ||
632 | ret->pkey.ptr = cmctx; | |
633 | return ret; | |
634 | ||
635 | err: | |
636 | EVP_PKEY_free(ret); | |
865adf97 | 637 | EVP_MAC_CTX_free(cmctx); |
e74bd290 | 638 | EVP_MAC_free(cmac); |
b3831fbb | 639 | return NULL; |
e683582b | 640 | # else |
df6d51e2 MC |
641 | EVPerr(EVP_F_EVP_PKEY_NEW_CMAC_KEY, |
642 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
643 | return NULL; | |
e683582b | 644 | # endif |
b3831fbb | 645 | } |
a08802ce | 646 | |
01b8b3c7 | 647 | int EVP_PKEY_set_type(EVP_PKEY *pkey, int type) |
0f113f3e | 648 | { |
8243d8d1 | 649 | return pkey_set_type(pkey, NULL, type, NULL, -1, NULL); |
0f113f3e | 650 | } |
01b8b3c7 DSH |
651 | |
652 | int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len) | |
0f113f3e | 653 | { |
8243d8d1 | 654 | return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, str, len, NULL); |
0f113f3e | 655 | } |
2f2e6b62 JL |
656 | |
657 | int EVP_PKEY_set_alias_type(EVP_PKEY *pkey, int type) | |
658 | { | |
659 | if (pkey->type == type) { | |
660 | return 1; /* it already is that type */ | |
661 | } | |
662 | ||
663 | /* | |
664 | * The application is requesting to alias this to a different pkey type, | |
665 | * but not one that resolves to the base type. | |
666 | */ | |
667 | if (EVP_PKEY_type(type) != EVP_PKEY_base_id(pkey)) { | |
668 | EVPerr(EVP_F_EVP_PKEY_SET_ALIAS_TYPE, EVP_R_UNSUPPORTED_ALGORITHM); | |
669 | return 0; | |
670 | } | |
671 | ||
672 | pkey->type = type; | |
673 | return 1; | |
674 | } | |
675 | ||
e683582b | 676 | # ifndef OPENSSL_NO_ENGINE |
d19b01ad DSH |
677 | int EVP_PKEY_set1_engine(EVP_PKEY *pkey, ENGINE *e) |
678 | { | |
679 | if (e != NULL) { | |
680 | if (!ENGINE_init(e)) { | |
681 | EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, ERR_R_ENGINE_LIB); | |
682 | return 0; | |
683 | } | |
684 | if (ENGINE_get_pkey_meth(e, pkey->type) == NULL) { | |
685 | ENGINE_finish(e); | |
686 | EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, EVP_R_UNSUPPORTED_ALGORITHM); | |
687 | return 0; | |
688 | } | |
689 | } | |
690 | ENGINE_finish(pkey->pmeth_engine); | |
691 | pkey->pmeth_engine = e; | |
692 | return 1; | |
693 | } | |
229f7b38 DB |
694 | |
695 | ENGINE *EVP_PKEY_get0_engine(const EVP_PKEY *pkey) | |
696 | { | |
697 | return pkey->engine; | |
698 | } | |
e683582b | 699 | # endif |
01b8b3c7 | 700 | int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) |
0f113f3e | 701 | { |
f4e4382c RL |
702 | int alias = type; |
703 | ||
ad5b71be | 704 | #ifndef OPENSSL_NO_EC |
f4e4382c RL |
705 | if (EVP_PKEY_type(type) == EVP_PKEY_EC) { |
706 | const EC_GROUP *group = EC_KEY_get0_group(key); | |
707 | ||
708 | if (group != NULL && EC_GROUP_get_curve_name(group) == NID_sm2) | |
709 | alias = EVP_PKEY_SM2; | |
710 | } | |
ad5b71be | 711 | #endif |
f4e4382c | 712 | |
e34c66c6 | 713 | if (pkey == NULL || !EVP_PKEY_set_type(pkey, type)) |
0f113f3e | 714 | return 0; |
f4e4382c RL |
715 | if (!EVP_PKEY_set_alias_type(pkey, alias)) |
716 | return 0; | |
0f113f3e MC |
717 | pkey->pkey.ptr = key; |
718 | return (key != NULL); | |
719 | } | |
d02b48c6 | 720 | |
3aeb9348 | 721 | void *EVP_PKEY_get0(const EVP_PKEY *pkey) |
0f113f3e | 722 | { |
acb90ba8 RL |
723 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
724 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
725 | return NULL; | |
726 | } | |
0f113f3e MC |
727 | return pkey->pkey.ptr; |
728 | } | |
db98bbc1 | 729 | |
ebad0b0b NM |
730 | const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len) |
731 | { | |
732 | ASN1_OCTET_STRING *os = NULL; | |
733 | if (pkey->type != EVP_PKEY_HMAC) { | |
734 | EVPerr(EVP_F_EVP_PKEY_GET0_HMAC, EVP_R_EXPECTING_AN_HMAC_KEY); | |
735 | return NULL; | |
736 | } | |
737 | os = EVP_PKEY_get0(pkey); | |
738 | *len = os->length; | |
739 | return os->data; | |
740 | } | |
741 | ||
e683582b | 742 | # ifndef OPENSSL_NO_POLY1305 |
52ad5b60 TS |
743 | const unsigned char *EVP_PKEY_get0_poly1305(const EVP_PKEY *pkey, size_t *len) |
744 | { | |
745 | ASN1_OCTET_STRING *os = NULL; | |
746 | if (pkey->type != EVP_PKEY_POLY1305) { | |
747 | EVPerr(EVP_F_EVP_PKEY_GET0_POLY1305, EVP_R_EXPECTING_A_POLY1305_KEY); | |
748 | return NULL; | |
749 | } | |
750 | os = EVP_PKEY_get0(pkey); | |
751 | *len = os->length; | |
752 | return os->data; | |
753 | } | |
e683582b | 754 | # endif |
52ad5b60 | 755 | |
e683582b | 756 | # ifndef OPENSSL_NO_SIPHASH |
3f5616d7 TS |
757 | const unsigned char *EVP_PKEY_get0_siphash(const EVP_PKEY *pkey, size_t *len) |
758 | { | |
759 | ASN1_OCTET_STRING *os = NULL; | |
760 | ||
761 | if (pkey->type != EVP_PKEY_SIPHASH) { | |
762 | EVPerr(EVP_F_EVP_PKEY_GET0_SIPHASH, EVP_R_EXPECTING_A_SIPHASH_KEY); | |
763 | return NULL; | |
764 | } | |
765 | os = EVP_PKEY_get0(pkey); | |
766 | *len = os->length; | |
767 | return os->data; | |
768 | } | |
e683582b | 769 | # endif |
3f5616d7 | 770 | |
e683582b | 771 | # ifndef OPENSSL_NO_RSA |
c7cb16a8 | 772 | int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) |
52664f50 | 773 | { |
0f113f3e MC |
774 | int ret = EVP_PKEY_assign_RSA(pkey, key); |
775 | if (ret) | |
776 | RSA_up_ref(key); | |
777 | return ret; | |
52664f50 DSH |
778 | } |
779 | ||
9fdcc21f | 780 | RSA *EVP_PKEY_get0_RSA(const EVP_PKEY *pkey) |
0f113f3e | 781 | { |
acb90ba8 RL |
782 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
783 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
784 | return NULL; | |
785 | } | |
465a58b1 | 786 | if (pkey->type != EVP_PKEY_RSA && pkey->type != EVP_PKEY_RSA_PSS) { |
2872dbe1 | 787 | EVPerr(EVP_F_EVP_PKEY_GET0_RSA, EVP_R_EXPECTING_AN_RSA_KEY); |
0f113f3e MC |
788 | return NULL; |
789 | } | |
0f113f3e | 790 | return pkey->pkey.rsa; |
f769ce3e | 791 | } |
2872dbe1 DSH |
792 | |
793 | RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey) | |
794 | { | |
795 | RSA *ret = EVP_PKEY_get0_RSA(pkey); | |
796 | if (ret != NULL) | |
797 | RSA_up_ref(ret); | |
798 | return ret; | |
799 | } | |
e683582b | 800 | # endif |
f769ce3e | 801 | |
e683582b | 802 | # ifndef OPENSSL_NO_DSA |
9fdcc21f | 803 | DSA *EVP_PKEY_get0_DSA(const EVP_PKEY *pkey) |
0f113f3e | 804 | { |
acb90ba8 RL |
805 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
806 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
807 | return NULL; | |
808 | } | |
0f113f3e | 809 | if (pkey->type != EVP_PKEY_DSA) { |
2872dbe1 | 810 | EVPerr(EVP_F_EVP_PKEY_GET0_DSA, EVP_R_EXPECTING_A_DSA_KEY); |
0f113f3e MC |
811 | return NULL; |
812 | } | |
0f113f3e | 813 | return pkey->pkey.dsa; |
f769ce3e | 814 | } |
2872dbe1 | 815 | |
b03ec3b5 SL |
816 | int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) |
817 | { | |
818 | int ret = EVP_PKEY_assign_DSA(pkey, key); | |
819 | if (ret) | |
820 | DSA_up_ref(key); | |
821 | return ret; | |
822 | } | |
2872dbe1 DSH |
823 | DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) |
824 | { | |
825 | DSA *ret = EVP_PKEY_get0_DSA(pkey); | |
826 | if (ret != NULL) | |
827 | DSA_up_ref(ret); | |
828 | return ret; | |
829 | } | |
b03ec3b5 | 830 | # endif /* OPENSSL_NO_DSA */ |
f844f9eb | 831 | #endif /* FIPS_MODULE */ |
f769ce3e | 832 | |
f844f9eb | 833 | #ifndef FIPS_MODULE |
e683582b | 834 | # ifndef OPENSSL_NO_EC |
14a7cfb3 | 835 | int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) |
4d94ae00 | 836 | { |
0f113f3e MC |
837 | int ret = EVP_PKEY_assign_EC_KEY(pkey, key); |
838 | if (ret) | |
839 | EC_KEY_up_ref(key); | |
840 | return ret; | |
4d94ae00 BM |
841 | } |
842 | ||
9fdcc21f | 843 | EC_KEY *EVP_PKEY_get0_EC_KEY(const EVP_PKEY *pkey) |
4d94ae00 | 844 | { |
acb90ba8 RL |
845 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
846 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
847 | return NULL; | |
848 | } | |
f4e4382c | 849 | if (EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) { |
2872dbe1 | 850 | EVPerr(EVP_F_EVP_PKEY_GET0_EC_KEY, EVP_R_EXPECTING_A_EC_KEY); |
0f113f3e MC |
851 | return NULL; |
852 | } | |
0f113f3e | 853 | return pkey->pkey.ec; |
4d94ae00 | 854 | } |
2872dbe1 DSH |
855 | |
856 | EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) | |
857 | { | |
858 | EC_KEY *ret = EVP_PKEY_get0_EC_KEY(pkey); | |
859 | if (ret != NULL) | |
860 | EC_KEY_up_ref(ret); | |
861 | return ret; | |
862 | } | |
7c664b1f RL |
863 | |
864 | static int EVP_PKEY_set1_ECX_KEY(EVP_PKEY *pkey, int type, ECX_KEY *key) | |
865 | { | |
866 | int ret = EVP_PKEY_assign(pkey, type, key); | |
867 | if (ret) | |
868 | ecx_key_up_ref(key); | |
869 | return ret; | |
870 | } | |
871 | ||
872 | static ECX_KEY *EVP_PKEY_get0_ECX_KEY(const EVP_PKEY *pkey, int type) | |
873 | { | |
874 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { | |
875 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
876 | return NULL; | |
877 | } | |
878 | if (EVP_PKEY_base_id(pkey) != type) { | |
879 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_ECX_KEY); | |
880 | return NULL; | |
881 | } | |
882 | return pkey->pkey.ecx; | |
883 | } | |
884 | ||
885 | static ECX_KEY *EVP_PKEY_get1_ECX_KEY(EVP_PKEY *pkey, int type) | |
886 | { | |
887 | ECX_KEY *ret = EVP_PKEY_get0_ECX_KEY(pkey, type); | |
888 | if (ret != NULL) | |
889 | ecx_key_up_ref(ret); | |
890 | return ret; | |
891 | } | |
892 | ||
893 | # define IMPLEMENT_ECX_VARIANT(NAME) \ | |
894 | int EVP_PKEY_set1_##NAME(EVP_PKEY *pkey, ECX_KEY *key) \ | |
895 | { \ | |
896 | return EVP_PKEY_set1_ECX_KEY(pkey, EVP_PKEY_##NAME, key); \ | |
897 | } \ | |
898 | ECX_KEY *EVP_PKEY_get0_##NAME(const EVP_PKEY *pkey) \ | |
899 | { \ | |
900 | return EVP_PKEY_get0_ECX_KEY(pkey, EVP_PKEY_##NAME); \ | |
901 | } \ | |
902 | ECX_KEY *EVP_PKEY_get1_##NAME(EVP_PKEY *pkey) \ | |
903 | { \ | |
904 | return EVP_PKEY_get1_ECX_KEY(pkey, EVP_PKEY_##NAME); \ | |
905 | } | |
906 | IMPLEMENT_ECX_VARIANT(X25519) | |
907 | IMPLEMENT_ECX_VARIANT(X448) | |
908 | IMPLEMENT_ECX_VARIANT(ED25519) | |
909 | IMPLEMENT_ECX_VARIANT(ED448) | |
910 | ||
e683582b | 911 | # endif |
4d94ae00 | 912 | |
e683582b | 913 | # ifndef OPENSSL_NO_DH |
52664f50 | 914 | |
c7cb16a8 | 915 | int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) |
52664f50 | 916 | { |
32c869ff MC |
917 | int type = DH_get0_q(key) == NULL ? EVP_PKEY_DH : EVP_PKEY_DHX; |
918 | int ret = EVP_PKEY_assign(pkey, type, key); | |
919 | ||
0f113f3e MC |
920 | if (ret) |
921 | DH_up_ref(key); | |
922 | return ret; | |
52664f50 DSH |
923 | } |
924 | ||
9fdcc21f | 925 | DH *EVP_PKEY_get0_DH(const EVP_PKEY *pkey) |
0f113f3e | 926 | { |
acb90ba8 RL |
927 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
928 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
929 | return NULL; | |
930 | } | |
0f113f3e | 931 | if (pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) { |
2872dbe1 | 932 | EVPerr(EVP_F_EVP_PKEY_GET0_DH, EVP_R_EXPECTING_A_DH_KEY); |
0f113f3e MC |
933 | return NULL; |
934 | } | |
0f113f3e | 935 | return pkey->pkey.dh; |
f769ce3e | 936 | } |
2872dbe1 DSH |
937 | |
938 | DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) | |
939 | { | |
940 | DH *ret = EVP_PKEY_get0_DH(pkey); | |
941 | if (ret != NULL) | |
942 | DH_up_ref(ret); | |
943 | return ret; | |
944 | } | |
e683582b | 945 | # endif |
f769ce3e | 946 | |
6b691a5c | 947 | int EVP_PKEY_type(int type) |
0f113f3e MC |
948 | { |
949 | int ret; | |
950 | const EVP_PKEY_ASN1_METHOD *ameth; | |
951 | ENGINE *e; | |
952 | ameth = EVP_PKEY_asn1_find(&e, type); | |
953 | if (ameth) | |
954 | ret = ameth->pkey_id; | |
955 | else | |
956 | ret = NID_undef; | |
e683582b | 957 | # ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 958 | ENGINE_finish(e); |
e683582b | 959 | # endif |
0f113f3e MC |
960 | return ret; |
961 | } | |
d02b48c6 | 962 | |
7f57b076 | 963 | int EVP_PKEY_id(const EVP_PKEY *pkey) |
0f113f3e MC |
964 | { |
965 | return pkey->type; | |
966 | } | |
7f57b076 DSH |
967 | |
968 | int EVP_PKEY_base_id(const EVP_PKEY *pkey) | |
0f113f3e MC |
969 | { |
970 | return EVP_PKEY_type(pkey->type); | |
971 | } | |
7f57b076 | 972 | |
4f76d62f RL |
973 | int EVP_PKEY_is_a(const EVP_PKEY *pkey, const char *name) |
974 | { | |
f844f9eb | 975 | #ifndef FIPS_MODULE |
4f76d62f RL |
976 | if (pkey->keymgmt == NULL) { |
977 | /* | |
978 | * These hard coded cases are pure hackery to get around the fact | |
979 | * that names in crypto/objects/objects.txt are a mess. There is | |
980 | * no "EC", and "RSA" leads to the NID for 2.5.8.1.1, an OID that's | |
981 | * fallen out in favor of { pkcs-1 1 }, i.e. 1.2.840.113549.1.1.1, | |
982 | * the NID of which is used for EVP_PKEY_RSA. Strangely enough, | |
983 | * "DSA" is accurate... but still, better be safe and hard-code | |
984 | * names that we know. | |
985 | * TODO Clean this away along with all other #legacy support. | |
986 | */ | |
987 | int type; | |
988 | ||
989 | if (strcasecmp(name, "RSA") == 0) | |
990 | type = EVP_PKEY_RSA; | |
456b3b97 RL |
991 | else if (strcasecmp(name, "RSA-PSS") == 0) |
992 | type = EVP_PKEY_RSA_PSS; | |
4f76d62f RL |
993 | #ifndef OPENSSL_NO_EC |
994 | else if (strcasecmp(name, "EC") == 0) | |
995 | type = EVP_PKEY_EC; | |
7c664b1f RL |
996 | else if (strcasecmp(name, "ED25519") == 0) |
997 | type = EVP_PKEY_ED25519; | |
998 | else if (strcasecmp(name, "ED448") == 0) | |
999 | type = EVP_PKEY_ED448; | |
1000 | else if (strcasecmp(name, "X25519") == 0) | |
1001 | type = EVP_PKEY_X25519; | |
1002 | else if (strcasecmp(name, "X448") == 0) | |
1003 | type = EVP_PKEY_X448; | |
1004 | #endif | |
1005 | #ifndef OPENSSL_NO_DH | |
1006 | else if (strcasecmp(name, "DH") == 0) | |
1007 | type = EVP_PKEY_DH; | |
31d2daec SL |
1008 | else if (strcasecmp(name, "X9.42 DH") == 0) |
1009 | type = EVP_PKEY_DHX; | |
4f76d62f RL |
1010 | #endif |
1011 | #ifndef OPENSSL_NO_DSA | |
1012 | else if (strcasecmp(name, "DSA") == 0) | |
1013 | type = EVP_PKEY_DSA; | |
1014 | #endif | |
1015 | else | |
1016 | type = EVP_PKEY_type(OBJ_sn2nid(name)); | |
1017 | return EVP_PKEY_type(pkey->type) == type; | |
1018 | } | |
1019 | #endif | |
1020 | return EVP_KEYMGMT_is_a(pkey->keymgmt, name); | |
1021 | } | |
1022 | ||
1023 | int EVP_PKEY_can_sign(const EVP_PKEY *pkey) | |
1024 | { | |
1025 | if (pkey->keymgmt == NULL) { | |
1026 | switch (EVP_PKEY_base_id(pkey)) { | |
1027 | case EVP_PKEY_RSA: | |
1028 | return 1; | |
1029 | #ifndef OPENSSL_NO_DSA | |
1030 | case EVP_PKEY_DSA: | |
1031 | return 1; | |
1032 | #endif | |
1033 | #ifndef OPENSSL_NO_EC | |
1034 | case EVP_PKEY_ED25519: | |
1035 | case EVP_PKEY_ED448: | |
1036 | return 1; | |
1037 | case EVP_PKEY_EC: /* Including SM2 */ | |
1038 | return EC_KEY_can_sign(pkey->pkey.ec); | |
1039 | #endif | |
1040 | default: | |
1041 | break; | |
1042 | } | |
1043 | } else { | |
1044 | const OSSL_PROVIDER *prov = EVP_KEYMGMT_provider(pkey->keymgmt); | |
1045 | OPENSSL_CTX *libctx = ossl_provider_library_context(prov); | |
1046 | const char *supported_sig = | |
1047 | pkey->keymgmt->query_operation_name != NULL | |
1048 | ? pkey->keymgmt->query_operation_name(OSSL_OP_SIGNATURE) | |
1049 | : evp_first_name(prov, pkey->keymgmt->name_id); | |
1050 | EVP_SIGNATURE *signature = NULL; | |
1051 | ||
1052 | signature = EVP_SIGNATURE_fetch(libctx, supported_sig, NULL); | |
1053 | if (signature != NULL) { | |
1054 | EVP_SIGNATURE_free(signature); | |
1055 | return 1; | |
1056 | } | |
1057 | } | |
1058 | return 0; | |
1059 | } | |
d02b48c6 | 1060 | |
c2041da8 RL |
1061 | #ifndef OPENSSL_NO_EC |
1062 | /* | |
1063 | * TODO rewrite when we have proper data extraction functions | |
1064 | * Note: an octet pointer would be desirable! | |
1065 | */ | |
1066 | static OSSL_CALLBACK get_ec_curve_name_cb; | |
1067 | static int get_ec_curve_name_cb(const OSSL_PARAM params[], void *arg) | |
1068 | { | |
1069 | const OSSL_PARAM *p = NULL; | |
1070 | ||
11a1b341 | 1071 | if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_GROUP_NAME)) != NULL) |
c2041da8 RL |
1072 | return OSSL_PARAM_get_utf8_string(p, arg, 0); |
1073 | ||
1074 | /* If there is no curve name, this is not an EC key */ | |
1075 | return 0; | |
1076 | } | |
1077 | ||
1078 | int evp_pkey_get_EC_KEY_curve_nid(const EVP_PKEY *pkey) | |
1079 | { | |
1080 | int ret = NID_undef; | |
1081 | ||
1082 | if (pkey->keymgmt == NULL) { | |
1083 | if (EVP_PKEY_base_id(pkey) == EVP_PKEY_EC) { | |
1084 | EC_KEY *ec = EVP_PKEY_get0_EC_KEY(pkey); | |
1085 | ||
1086 | ret = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec)); | |
1087 | } | |
1088 | } else if (EVP_PKEY_is_a(pkey, "EC") || EVP_PKEY_is_a(pkey, "SM2")) { | |
1089 | char *curve_name = NULL; | |
1090 | ||
1091 | ret = evp_keymgmt_export(pkey->keymgmt, pkey->keydata, | |
1092 | OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS, | |
1093 | get_ec_curve_name_cb, &curve_name); | |
1094 | if (ret) | |
1095 | ret = ec_curve_name2nid(curve_name); | |
1096 | OPENSSL_free(curve_name); | |
1097 | } | |
1098 | ||
1099 | return ret; | |
1100 | } | |
1101 | #endif | |
1102 | ||
f1299839 RL |
1103 | static int print_reset_indent(BIO **out, int pop_f_prefix, long saved_indent) |
1104 | { | |
1105 | BIO_set_indent(*out, saved_indent); | |
1106 | if (pop_f_prefix) { | |
1107 | BIO *next = BIO_pop(*out); | |
1108 | ||
1109 | BIO_free(*out); | |
1110 | *out = next; | |
1111 | } | |
1112 | return 1; | |
1113 | } | |
1114 | ||
1115 | static int print_set_indent(BIO **out, int *pop_f_prefix, long *saved_indent, | |
1116 | long indent) | |
1117 | { | |
1118 | *pop_f_prefix = 0; | |
1119 | *saved_indent = 0; | |
1120 | if (indent > 0) { | |
1121 | long i = BIO_get_indent(*out); | |
1122 | ||
1123 | *saved_indent = (i < 0 ? 0 : i); | |
1124 | if (BIO_set_indent(*out, indent) <= 0) { | |
1125 | if ((*out = BIO_push(BIO_new(BIO_f_prefix()), *out)) == NULL) | |
1126 | return 0; | |
1127 | *pop_f_prefix = 1; | |
1128 | } | |
1129 | if (BIO_set_indent(*out, indent) <= 0) { | |
1130 | print_reset_indent(out, *pop_f_prefix, *saved_indent); | |
1131 | return 0; | |
1132 | } | |
1133 | } | |
1134 | return 1; | |
1135 | } | |
1136 | ||
35208f36 | 1137 | static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent, |
0f113f3e MC |
1138 | const char *kstr) |
1139 | { | |
5310a4e6 P |
1140 | return BIO_indent(out, indent, 128) |
1141 | && BIO_printf(out, "%s algorithm \"%s\" unsupported\n", | |
1142 | kstr, OBJ_nid2ln(pkey->type)) > 0; | |
0f113f3e | 1143 | } |
35208f36 | 1144 | |
f1299839 | 1145 | static int print_pkey(const EVP_PKEY *pkey, BIO *out, int indent, |
ece9304c | 1146 | const char *propquery /* For provided encoding */, |
f1299839 RL |
1147 | int (*legacy_print)(BIO *out, const EVP_PKEY *pkey, |
1148 | int indent, ASN1_PCTX *pctx), | |
1149 | ASN1_PCTX *legacy_pctx /* For legacy print */) | |
0f113f3e | 1150 | { |
f1299839 RL |
1151 | int pop_f_prefix; |
1152 | long saved_indent; | |
ece9304c | 1153 | OSSL_ENCODER_CTX *ctx = NULL; |
f1299839 RL |
1154 | int ret = -2; /* default to unsupported */ |
1155 | ||
1156 | if (!print_set_indent(&out, &pop_f_prefix, &saved_indent, indent)) | |
1157 | return 0; | |
54c1711f | 1158 | |
ece9304c RL |
1159 | ctx = OSSL_ENCODER_CTX_new_by_EVP_PKEY(pkey, propquery); |
1160 | if (OSSL_ENCODER_CTX_get_encoder(ctx) != NULL) | |
1161 | ret = OSSL_ENCODER_to_bio(ctx, out); | |
1162 | OSSL_ENCODER_CTX_free(ctx); | |
54c1711f RL |
1163 | |
1164 | if (ret != -2) | |
f1299839 | 1165 | goto end; |
54c1711f RL |
1166 | |
1167 | /* legacy fallback */ | |
f1299839 RL |
1168 | if (legacy_print != NULL) |
1169 | ret = legacy_print(out, pkey, 0, legacy_pctx); | |
1170 | else | |
1171 | ret = unsup_alg(out, pkey, 0, "Public Key"); | |
0f113f3e | 1172 | |
f1299839 RL |
1173 | end: |
1174 | print_reset_indent(&out, pop_f_prefix, saved_indent); | |
1175 | return ret; | |
1176 | } | |
1177 | ||
1178 | int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, | |
1179 | int indent, ASN1_PCTX *pctx) | |
1180 | { | |
ece9304c | 1181 | return print_pkey(pkey, out, indent, OSSL_ENCODER_PUBKEY_TO_TEXT_PQ, |
f1299839 RL |
1182 | (pkey->ameth != NULL ? pkey->ameth->pub_print : NULL), |
1183 | pctx); | |
0f113f3e | 1184 | } |
35208f36 DSH |
1185 | |
1186 | int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
1187 | int indent, ASN1_PCTX *pctx) |
1188 | { | |
ece9304c | 1189 | return print_pkey(pkey, out, indent, OSSL_ENCODER_PrivateKey_TO_TEXT_PQ, |
f1299839 RL |
1190 | (pkey->ameth != NULL ? pkey->ameth->priv_print : NULL), |
1191 | pctx); | |
0f113f3e | 1192 | } |
35208f36 DSH |
1193 | |
1194 | int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
1195 | int indent, ASN1_PCTX *pctx) |
1196 | { | |
ece9304c | 1197 | return print_pkey(pkey, out, indent, OSSL_ENCODER_Parameters_TO_TEXT_PQ, |
f1299839 RL |
1198 | (pkey->ameth != NULL ? pkey->ameth->param_print : NULL), |
1199 | pctx); | |
0f113f3e | 1200 | } |
03919683 | 1201 | |
ead0d234 RL |
1202 | static int legacy_asn1_ctrl_to_param(EVP_PKEY *pkey, int op, |
1203 | int arg1, void *arg2) | |
1204 | { | |
3c6ed955 | 1205 | if (pkey->keymgmt == NULL) |
ead0d234 RL |
1206 | return 0; |
1207 | switch (op) { | |
1208 | case ASN1_PKEY_CTRL_DEFAULT_MD_NID: | |
1209 | { | |
1210 | char mdname[80] = ""; | |
ead0d234 RL |
1211 | int rv = EVP_PKEY_get_default_digest_name(pkey, mdname, |
1212 | sizeof(mdname)); | |
1213 | ||
90ef39f4 RL |
1214 | if (rv > 0) { |
1215 | int nid; | |
1216 | ||
1217 | nid = OBJ_sn2nid(mdname); | |
1218 | if (nid == NID_undef) | |
1219 | nid = OBJ_ln2nid(mdname); | |
1220 | *(int *)arg2 = nid; | |
1221 | } | |
1222 | return rv; | |
ead0d234 RL |
1223 | } |
1224 | default: | |
1225 | return -2; | |
1226 | } | |
1227 | } | |
1228 | ||
5d6aaf8a | 1229 | static int evp_pkey_asn1_ctrl(EVP_PKEY *pkey, int op, int arg1, void *arg2) |
0f113f3e | 1230 | { |
ead0d234 RL |
1231 | if (pkey->ameth == NULL) |
1232 | return legacy_asn1_ctrl_to_param(pkey, op, arg1, arg2); | |
1233 | if (pkey->ameth->pkey_ctrl == NULL) | |
0f113f3e | 1234 | return -2; |
5d6aaf8a DSH |
1235 | return pkey->ameth->pkey_ctrl(pkey, op, arg1, arg2); |
1236 | } | |
1237 | ||
1238 | int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid) | |
1239 | { | |
1240 | return evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 0, pnid); | |
1241 | } | |
1242 | ||
ead0d234 RL |
1243 | int EVP_PKEY_get_default_digest_name(EVP_PKEY *pkey, |
1244 | char *mdname, size_t mdname_sz) | |
1245 | { | |
3b924da0 RL |
1246 | if (pkey->ameth == NULL) |
1247 | return evp_keymgmt_util_get_deflt_digest_name(pkey->keymgmt, | |
1248 | pkey->keydata, | |
1249 | mdname, mdname_sz); | |
ead0d234 RL |
1250 | |
1251 | { | |
1252 | int nid = NID_undef; | |
1253 | int rv = EVP_PKEY_get_default_digest_nid(pkey, &nid); | |
1254 | const char *name = rv > 0 ? OBJ_nid2sn(nid) : NULL; | |
1255 | ||
1256 | if (rv > 0) | |
1257 | OPENSSL_strlcpy(mdname, name, mdname_sz); | |
1258 | return rv; | |
1259 | } | |
1260 | } | |
1261 | ||
ecbb2fca DW |
1262 | int EVP_PKEY_supports_digest_nid(EVP_PKEY *pkey, int nid) |
1263 | { | |
1264 | int rv, default_nid; | |
1265 | ||
1266 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SUPPORTS_MD_NID, nid, NULL); | |
1267 | if (rv == -2) { | |
1268 | /* | |
1269 | * If there is a mandatory default digest and this isn't it, then | |
1270 | * the answer is 'no'. | |
1271 | */ | |
1272 | rv = EVP_PKEY_get_default_digest_nid(pkey, &default_nid); | |
1273 | if (rv == 2) | |
1274 | return (nid == default_nid); | |
1275 | /* zero is an error from EVP_PKEY_get_default_digest_nid() */ | |
1276 | if (rv == 0) | |
1277 | return -1; | |
1278 | } | |
1279 | return rv; | |
1280 | } | |
1281 | ||
5d6aaf8a DSH |
1282 | int EVP_PKEY_set1_tls_encodedpoint(EVP_PKEY *pkey, |
1283 | const unsigned char *pt, size_t ptlen) | |
1284 | { | |
6a9bd929 MC |
1285 | if (pkey->ameth == NULL) { |
1286 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
1287 | ||
1288 | if (pkey->keymgmt == NULL || pkey->keydata == NULL) | |
1289 | return 0; | |
1290 | ||
1291 | params[0] = | |
1292 | OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_TLS_ENCODED_PT, | |
1293 | (unsigned char *)pt, ptlen); | |
1294 | return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params); | |
1295 | } | |
1296 | ||
5d6aaf8a DSH |
1297 | if (ptlen > INT_MAX) |
1298 | return 0; | |
1299 | if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, ptlen, | |
1300 | (void *)pt) <= 0) | |
1301 | return 0; | |
1302 | return 1; | |
1303 | } | |
1304 | ||
1305 | size_t EVP_PKEY_get1_tls_encodedpoint(EVP_PKEY *pkey, unsigned char **ppt) | |
1306 | { | |
1307 | int rv; | |
6a9bd929 MC |
1308 | |
1309 | if (pkey->ameth == NULL) { | |
1310 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
1311 | ||
1312 | if (pkey->keymgmt == NULL || pkey->keydata == NULL) | |
1313 | return 0; | |
1314 | ||
1315 | params[0] = | |
1316 | OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_TLS_ENCODED_PT, | |
1317 | NULL, 0); | |
1318 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) | |
1319 | return 0; | |
1320 | ||
1321 | *ppt = OPENSSL_malloc(params[0].return_size); | |
1322 | if (*ppt == NULL) | |
1323 | return 0; | |
1324 | ||
1325 | params[0] = | |
1326 | OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_TLS_ENCODED_PT, | |
1327 | *ppt, params[0].return_size); | |
1328 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) | |
1329 | return 0; | |
1330 | ||
1331 | return params[0].return_size; | |
1332 | } | |
1333 | ||
1334 | ||
5d6aaf8a DSH |
1335 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppt); |
1336 | if (rv <= 0) | |
1337 | return 0; | |
1338 | return rv; | |
0f113f3e | 1339 | } |
e683582b | 1340 | |
f844f9eb | 1341 | #endif /* FIPS_MODULE */ |
e683582b | 1342 | |
f844f9eb | 1343 | /*- All methods below can also be used in FIPS_MODULE */ |
e683582b SL |
1344 | |
1345 | EVP_PKEY *EVP_PKEY_new(void) | |
1346 | { | |
1347 | EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret)); | |
1348 | ||
1349 | if (ret == NULL) { | |
1350 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
1351 | return NULL; | |
1352 | } | |
1353 | ret->type = EVP_PKEY_NONE; | |
1354 | ret->save_type = EVP_PKEY_NONE; | |
1355 | ret->references = 1; | |
1356 | ret->save_parameters = 1; | |
1357 | ret->lock = CRYPTO_THREAD_lock_new(); | |
1358 | if (ret->lock == NULL) { | |
1359 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
ff1f7cde AT |
1360 | goto err; |
1361 | } | |
f844f9eb | 1362 | #ifndef FIPS_MODULE |
ff1f7cde AT |
1363 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, ret, &ret->ex_data)) { |
1364 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
1365 | goto err; | |
e683582b | 1366 | } |
ff1f7cde | 1367 | #endif |
e683582b | 1368 | return ret; |
ff1f7cde AT |
1369 | |
1370 | err: | |
1371 | CRYPTO_THREAD_lock_free(ret->lock); | |
1372 | OPENSSL_free(ret); | |
1373 | return NULL; | |
e683582b SL |
1374 | } |
1375 | ||
8243d8d1 RL |
1376 | /* |
1377 | * Setup a public key management method. | |
1378 | * | |
1379 | * For legacy keys, either |type| or |str| is expected to have the type | |
1380 | * information. In this case, the setup consists of finding an ASN1 method | |
1381 | * and potentially an ENGINE, and setting those fields in |pkey|. | |
1382 | * | |
1383 | * For provider side keys, |keymgmt| is expected to be non-NULL. In this | |
1384 | * case, the setup consists of setting the |keymgmt| field in |pkey|. | |
1385 | * | |
1386 | * If pkey is NULL just return 1 or 0 if the key management method exists. | |
1387 | */ | |
1388 | ||
1389 | static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str, | |
1390 | int len, EVP_KEYMGMT *keymgmt) | |
1391 | { | |
f844f9eb | 1392 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1393 | const EVP_PKEY_ASN1_METHOD *ameth = NULL; |
1394 | ENGINE **eptr = (e == NULL) ? &e : NULL; | |
1395 | #endif | |
1396 | ||
1397 | /* | |
1398 | * The setups can't set both legacy and provider side methods. | |
1399 | * It is forbidden | |
1400 | */ | |
1401 | if (!ossl_assert(type == EVP_PKEY_NONE || keymgmt == NULL) | |
1402 | || !ossl_assert(e == NULL || keymgmt == NULL)) { | |
1403 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1404 | return 0; | |
1405 | } | |
1406 | ||
1407 | if (pkey != NULL) { | |
1408 | int free_it = 0; | |
1409 | ||
f844f9eb | 1410 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1411 | free_it = free_it || pkey->pkey.ptr != NULL; |
1412 | #endif | |
1413 | free_it = free_it || pkey->keydata != NULL; | |
1414 | if (free_it) | |
1415 | evp_pkey_free_it(pkey); | |
f844f9eb | 1416 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1417 | /* |
1418 | * If key type matches and a method exists then this lookup has | |
1419 | * succeeded once so just indicate success. | |
1420 | */ | |
1421 | if (pkey->type != EVP_PKEY_NONE | |
1422 | && type == pkey->save_type | |
1423 | && pkey->ameth != NULL) | |
1424 | return 1; | |
1425 | # ifndef OPENSSL_NO_ENGINE | |
1426 | /* If we have ENGINEs release them */ | |
1427 | ENGINE_finish(pkey->engine); | |
1428 | pkey->engine = NULL; | |
1429 | ENGINE_finish(pkey->pmeth_engine); | |
1430 | pkey->pmeth_engine = NULL; | |
1431 | # endif | |
1432 | #endif | |
1433 | } | |
f844f9eb | 1434 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1435 | if (str != NULL) |
1436 | ameth = EVP_PKEY_asn1_find_str(eptr, str, len); | |
1437 | else if (type != EVP_PKEY_NONE) | |
1438 | ameth = EVP_PKEY_asn1_find(eptr, type); | |
1439 | # ifndef OPENSSL_NO_ENGINE | |
1440 | if (pkey == NULL && eptr != NULL) | |
1441 | ENGINE_finish(e); | |
1442 | # endif | |
1443 | #endif | |
1444 | ||
1445 | ||
1446 | { | |
1447 | int check = 1; | |
1448 | ||
f844f9eb | 1449 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1450 | check = check && ameth == NULL; |
1451 | #endif | |
1452 | check = check && keymgmt == NULL; | |
1453 | if (check) { | |
1454 | EVPerr(EVP_F_PKEY_SET_TYPE, EVP_R_UNSUPPORTED_ALGORITHM); | |
1455 | return 0; | |
1456 | } | |
1457 | } | |
1458 | if (pkey != NULL) { | |
1459 | if (keymgmt != NULL && !EVP_KEYMGMT_up_ref(keymgmt)) { | |
1460 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1461 | return 0; | |
1462 | } | |
1463 | ||
1464 | pkey->keymgmt = keymgmt; | |
1465 | ||
1466 | pkey->save_type = type; | |
1467 | pkey->type = type; | |
1468 | ||
f844f9eb | 1469 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1470 | /* |
1471 | * If the internal "origin" key is provider side, don't save |ameth|. | |
1472 | * The main reason is that |ameth| is one factor to detect that the | |
1473 | * internal "origin" key is a legacy one. | |
1474 | */ | |
1475 | if (keymgmt == NULL) | |
1476 | pkey->ameth = ameth; | |
1477 | pkey->engine = e; | |
1478 | ||
1479 | /* | |
5e5bc836 RL |
1480 | * The EVP_PKEY_ASN1_METHOD |pkey_id| retains its legacy key purpose |
1481 | * for any key type that has a legacy implementation, regardless of | |
1482 | * if the internal key is a legacy or a provider side one. When | |
1483 | * there is no legacy implementation for the key, the type becomes | |
1484 | * EVP_PKEY_KEYMGMT, which indicates that one should be cautious | |
1485 | * with functions that expect legacy internal keys. | |
8243d8d1 | 1486 | */ |
5e5bc836 RL |
1487 | if (ameth != NULL) |
1488 | pkey->type = ameth->pkey_id; | |
1489 | else | |
1490 | pkey->type = EVP_PKEY_KEYMGMT; | |
8243d8d1 RL |
1491 | #endif |
1492 | } | |
1493 | return 1; | |
1494 | } | |
1495 | ||
f844f9eb | 1496 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1497 | static void find_ameth(const char *name, void *data) |
1498 | { | |
1499 | const char **str = data; | |
1500 | ||
1501 | /* | |
1502 | * The error messages from pkey_set_type() are uninteresting here, | |
1503 | * and misleading. | |
1504 | */ | |
1505 | ERR_set_mark(); | |
1506 | ||
1507 | if (pkey_set_type(NULL, NULL, EVP_PKEY_NONE, name, strlen(name), | |
1508 | NULL)) { | |
1509 | if (str[0] == NULL) | |
1510 | str[0] = name; | |
1511 | else if (str[1] == NULL) | |
1512 | str[1] = name; | |
1513 | } | |
1514 | ||
1515 | ERR_pop_to_mark(); | |
1516 | } | |
1517 | #endif | |
1518 | ||
1519 | int EVP_PKEY_set_type_by_keymgmt(EVP_PKEY *pkey, EVP_KEYMGMT *keymgmt) | |
1520 | { | |
f844f9eb | 1521 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1522 | # define EVP_PKEY_TYPE_STR str[0] |
1523 | # define EVP_PKEY_TYPE_STRLEN (str[0] == NULL ? -1 : (int)strlen(str[0])) | |
1524 | /* | |
1525 | * Find at most two strings that have an associated EVP_PKEY_ASN1_METHOD | |
1526 | * Ideally, only one should be found. If two (or more) are found, the | |
1527 | * match is ambiguous. This should never happen, but... | |
1528 | */ | |
1529 | const char *str[2] = { NULL, NULL }; | |
1530 | ||
1531 | EVP_KEYMGMT_names_do_all(keymgmt, find_ameth, &str); | |
1532 | if (str[1] != NULL) { | |
1533 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1534 | return 0; | |
1535 | } | |
1536 | #else | |
1537 | # define EVP_PKEY_TYPE_STR NULL | |
1538 | # define EVP_PKEY_TYPE_STRLEN -1 | |
1539 | #endif | |
1540 | return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, | |
1541 | EVP_PKEY_TYPE_STR, EVP_PKEY_TYPE_STRLEN, | |
1542 | keymgmt); | |
1543 | ||
1544 | #undef EVP_PKEY_TYPE_STR | |
1545 | #undef EVP_PKEY_TYPE_STRLEN | |
1546 | } | |
1547 | ||
e683582b SL |
1548 | int EVP_PKEY_up_ref(EVP_PKEY *pkey) |
1549 | { | |
1550 | int i; | |
1551 | ||
1552 | if (CRYPTO_UP_REF(&pkey->references, &i, pkey->lock) <= 0) | |
1553 | return 0; | |
1554 | ||
1555 | REF_PRINT_COUNT("EVP_PKEY", pkey); | |
1556 | REF_ASSERT_ISNT(i < 2); | |
1557 | return ((i > 1) ? 1 : 0); | |
1558 | } | |
1559 | ||
f844f9eb | 1560 | #ifndef FIPS_MODULE |
62924755 | 1561 | void evp_pkey_free_legacy(EVP_PKEY *x) |
badf51c8 RL |
1562 | { |
1563 | if (x->ameth != NULL) { | |
ff3b59e1 | 1564 | if (x->ameth->pkey_free != NULL) |
badf51c8 RL |
1565 | x->ameth->pkey_free(x); |
1566 | x->pkey.ptr = NULL; | |
badf51c8 RL |
1567 | } |
1568 | # ifndef OPENSSL_NO_ENGINE | |
1569 | ENGINE_finish(x->engine); | |
1570 | x->engine = NULL; | |
1571 | ENGINE_finish(x->pmeth_engine); | |
1572 | x->pmeth_engine = NULL; | |
1573 | # endif | |
badf51c8 | 1574 | } |
f844f9eb | 1575 | #endif /* FIPS_MODULE */ |
badf51c8 | 1576 | |
e683582b SL |
1577 | static void evp_pkey_free_it(EVP_PKEY *x) |
1578 | { | |
1579 | /* internal function; x is never NULL */ | |
1580 | ||
3c6ed955 | 1581 | evp_keymgmt_util_clear_operation_cache(x); |
f844f9eb | 1582 | #ifndef FIPS_MODULE |
badf51c8 RL |
1583 | evp_pkey_free_legacy(x); |
1584 | #endif | |
e683582b | 1585 | |
3c6ed955 RL |
1586 | if (x->keymgmt != NULL) { |
1587 | evp_keymgmt_freedata(x->keymgmt, x->keydata); | |
1588 | EVP_KEYMGMT_free(x->keymgmt); | |
1589 | x->keymgmt = NULL; | |
1590 | x->keydata = NULL; | |
1591 | } | |
5e5bc836 | 1592 | x->type = EVP_PKEY_NONE; |
e683582b SL |
1593 | } |
1594 | ||
1595 | void EVP_PKEY_free(EVP_PKEY *x) | |
1596 | { | |
1597 | int i; | |
1598 | ||
1599 | if (x == NULL) | |
1600 | return; | |
1601 | ||
1602 | CRYPTO_DOWN_REF(&x->references, &i, x->lock); | |
1603 | REF_PRINT_COUNT("EVP_PKEY", x); | |
1604 | if (i > 0) | |
1605 | return; | |
1606 | REF_ASSERT_ISNT(i < 0); | |
1607 | evp_pkey_free_it(x); | |
f844f9eb | 1608 | #ifndef FIPS_MODULE |
ff1f7cde AT |
1609 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, x, &x->ex_data); |
1610 | #endif | |
e683582b | 1611 | CRYPTO_THREAD_lock_free(x->lock); |
f844f9eb | 1612 | #ifndef FIPS_MODULE |
e683582b SL |
1613 | sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free); |
1614 | #endif | |
1615 | OPENSSL_free(x); | |
1616 | } | |
1617 | ||
e683582b SL |
1618 | int EVP_PKEY_size(const EVP_PKEY *pkey) |
1619 | { | |
adc9f731 RL |
1620 | int size = 0; |
1621 | ||
6508e858 | 1622 | if (pkey != NULL) { |
adc9f731 | 1623 | size = pkey->cache.size; |
f844f9eb | 1624 | #ifndef FIPS_MODULE |
adc9f731 RL |
1625 | if (pkey->ameth != NULL && pkey->ameth->pkey_size != NULL) |
1626 | size = pkey->ameth->pkey_size(pkey); | |
1627 | #endif | |
6508e858 | 1628 | } |
adc9f731 | 1629 | return size; |
e683582b | 1630 | } |
f6aa5774 | 1631 | |
3c6ed955 RL |
1632 | void *evp_pkey_export_to_provider(EVP_PKEY *pk, OPENSSL_CTX *libctx, |
1633 | EVP_KEYMGMT **keymgmt, | |
1634 | const char *propquery) | |
f6aa5774 RL |
1635 | { |
1636 | EVP_KEYMGMT *allocated_keymgmt = NULL; | |
1637 | EVP_KEYMGMT *tmp_keymgmt = NULL; | |
b305452f | 1638 | void *keydata = NULL; |
adc9f731 | 1639 | int check; |
f6aa5774 RL |
1640 | |
1641 | if (pk == NULL) | |
1642 | return NULL; | |
1643 | ||
adc9f731 RL |
1644 | /* No key data => nothing to export */ |
1645 | check = 1; | |
f844f9eb | 1646 | #ifndef FIPS_MODULE |
adc9f731 RL |
1647 | check = check && pk->pkey.ptr == NULL; |
1648 | #endif | |
1649 | check = check && pk->keydata == NULL; | |
1650 | if (check) | |
1651 | return NULL; | |
1652 | ||
f844f9eb | 1653 | #ifndef FIPS_MODULE |
3f7ce7f1 | 1654 | if (pk->pkey.ptr != NULL) { |
3f7ce7f1 | 1655 | /* |
3c6ed955 RL |
1656 | * If the legacy key doesn't have an dirty counter or export function, |
1657 | * give up | |
3f7ce7f1 | 1658 | */ |
3c6ed955 RL |
1659 | if (pk->ameth->dirty_cnt == NULL || pk->ameth->export_to == NULL) |
1660 | return NULL; | |
3f7ce7f1 RL |
1661 | } |
1662 | #endif | |
1663 | ||
3c6ed955 RL |
1664 | if (keymgmt != NULL) { |
1665 | tmp_keymgmt = *keymgmt; | |
1666 | *keymgmt = NULL; | |
1667 | } | |
1668 | ||
4b9e90f4 RL |
1669 | /* |
1670 | * If no keymgmt was given or found, get a default keymgmt. We do so by | |
1671 | * letting EVP_PKEY_CTX_new_from_pkey() do it for us, then we steal it. | |
1672 | */ | |
f6aa5774 | 1673 | if (tmp_keymgmt == NULL) { |
2ee4a50a | 1674 | EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk, propquery); |
f6aa5774 | 1675 | |
4b9e90f4 RL |
1676 | tmp_keymgmt = ctx->keymgmt; |
1677 | ctx->keymgmt = NULL; | |
f6aa5774 RL |
1678 | EVP_PKEY_CTX_free(ctx); |
1679 | } | |
1680 | ||
3c6ed955 | 1681 | /* If there's still no keymgmt to be had, give up */ |
3f7ce7f1 RL |
1682 | if (tmp_keymgmt == NULL) |
1683 | goto end; | |
f6aa5774 | 1684 | |
f844f9eb | 1685 | #ifndef FIPS_MODULE |
3f7ce7f1 | 1686 | if (pk->pkey.ptr != NULL) { |
3c6ed955 | 1687 | size_t i = 0; |
3f7ce7f1 RL |
1688 | |
1689 | /* | |
3c6ed955 RL |
1690 | * If the legacy "origin" hasn't changed since last time, we try |
1691 | * to find our keymgmt in the operation cache. If it has changed, | |
1692 | * |i| remains zero, and we will clear the cache further down. | |
3f7ce7f1 | 1693 | */ |
3c6ed955 RL |
1694 | if (pk->ameth->dirty_cnt(pk) == pk->dirty_cnt_copy) { |
1695 | i = evp_keymgmt_util_find_operation_cache_index(pk, tmp_keymgmt); | |
1696 | ||
1697 | /* | |
1698 | * If |tmp_keymgmt| is present in the operation cache, it means | |
1699 | * that export doesn't need to be redone. In that case, we take | |
1700 | * token copies of the cached pointers, to have token success | |
1701 | * values to return. | |
1702 | */ | |
1703 | if (i < OSSL_NELEM(pk->operation_cache) | |
1704 | && pk->operation_cache[i].keymgmt != NULL) { | |
1705 | keydata = pk->operation_cache[i].keydata; | |
1706 | goto end; | |
1707 | } | |
3f7ce7f1 RL |
1708 | } |
1709 | ||
1710 | /* | |
3c6ed955 RL |
1711 | * TODO(3.0) Right now, we assume we have ample space. We will have |
1712 | * to think about a cache aging scheme, though, if |i| indexes outside | |
1713 | * the array. | |
3f7ce7f1 | 1714 | */ |
3c6ed955 | 1715 | if (!ossl_assert(i < OSSL_NELEM(pk->operation_cache))) |
3f7ce7f1 RL |
1716 | goto end; |
1717 | ||
1718 | /* Make sure that the keymgmt key type matches the legacy NID */ | |
1719 | if (!ossl_assert(EVP_KEYMGMT_is_a(tmp_keymgmt, OBJ_nid2sn(pk->type)))) | |
1720 | goto end; | |
1721 | ||
1722 | if ((keydata = evp_keymgmt_newdata(tmp_keymgmt)) == NULL) | |
1723 | goto end; | |
1724 | ||
76e23fc5 | 1725 | if (!pk->ameth->export_to(pk, keydata, tmp_keymgmt, libctx, propquery)) { |
3f7ce7f1 RL |
1726 | evp_keymgmt_freedata(tmp_keymgmt, keydata); |
1727 | keydata = NULL; | |
1728 | goto end; | |
1729 | } | |
1730 | ||
3c6ed955 RL |
1731 | /* |
1732 | * If the dirty counter changed since last time, then clear the | |
1733 | * operation cache. In that case, we know that |i| is zero. Just | |
1734 | * in case this is a re-export, we increment then decrement the | |
1735 | * keymgmt reference counter. | |
1736 | */ | |
1737 | if (!EVP_KEYMGMT_up_ref(tmp_keymgmt)) { /* refcnt++ */ | |
1738 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1739 | keydata = NULL; | |
1740 | goto end; | |
1741 | } | |
1742 | if (pk->ameth->dirty_cnt(pk) != pk->dirty_cnt_copy) | |
1743 | evp_keymgmt_util_clear_operation_cache(pk); | |
1744 | EVP_KEYMGMT_free(tmp_keymgmt); /* refcnt-- */ | |
1745 | ||
1746 | /* Add the new export to the operation cache */ | |
1747 | if (!evp_keymgmt_util_cache_keydata(pk, i, tmp_keymgmt, keydata)) { | |
1748 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1749 | keydata = NULL; | |
1750 | goto end; | |
1751 | } | |
3f7ce7f1 RL |
1752 | |
1753 | /* Synchronize the dirty count */ | |
1754 | pk->dirty_cnt_copy = pk->ameth->dirty_cnt(pk); | |
1755 | goto end; | |
1756 | } | |
f844f9eb | 1757 | #endif /* FIPS_MODULE */ |
3f7ce7f1 RL |
1758 | |
1759 | keydata = evp_keymgmt_util_export_to_provider(pk, tmp_keymgmt); | |
1760 | ||
1761 | end: | |
f6aa5774 RL |
1762 | /* |
1763 | * If nothing was exported, |tmp_keymgmt| might point at a freed | |
1764 | * EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for | |
1765 | * the caller either way in that case. | |
1766 | */ | |
b305452f | 1767 | if (keydata == NULL) |
f6aa5774 RL |
1768 | tmp_keymgmt = NULL; |
1769 | ||
1770 | if (keymgmt != NULL) | |
1771 | *keymgmt = tmp_keymgmt; | |
1772 | ||
1773 | EVP_KEYMGMT_free(allocated_keymgmt); | |
b305452f | 1774 | return keydata; |
f6aa5774 | 1775 | } |
badf51c8 | 1776 | |
f844f9eb | 1777 | #ifndef FIPS_MODULE |
acb90ba8 | 1778 | int evp_pkey_downgrade(EVP_PKEY *pk) |
badf51c8 | 1779 | { |
acb90ba8 RL |
1780 | EVP_KEYMGMT *keymgmt = pk->keymgmt; |
1781 | void *keydata = pk->keydata; | |
5e5bc836 | 1782 | int type = pk->type; |
acb90ba8 | 1783 | const char *keytype = NULL; |
badf51c8 | 1784 | |
acb90ba8 RL |
1785 | /* If this isn't a provider side key, we're done */ |
1786 | if (keymgmt == NULL) | |
1787 | return 1; | |
1788 | ||
5e5bc836 | 1789 | keytype = evp_first_name(EVP_KEYMGMT_provider(keymgmt), keymgmt->name_id); |
badf51c8 RL |
1790 | |
1791 | /* | |
5e5bc836 RL |
1792 | * If the type is EVP_PKEY_NONE, then we have a problem somewhere else |
1793 | * in our code. If it's not one of the well known EVP_PKEY_xxx values, | |
1794 | * it should at least be EVP_PKEY_KEYMGMT at this point. | |
1795 | * TODO(3.0) remove this check when we're confident that the rest of the | |
1796 | * code treats this correctly. | |
badf51c8 | 1797 | */ |
5e5bc836 RL |
1798 | if (!ossl_assert(type != EVP_PKEY_NONE)) { |
1799 | ERR_raise_data(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR, | |
1800 | "keymgmt key type = %s but legacy type = EVP_PKEY_NONE", | |
1801 | keytype); | |
acb90ba8 | 1802 | return 0; |
badf51c8 RL |
1803 | } |
1804 | ||
5e5bc836 RL |
1805 | /* Prefer the legacy key type name for error reporting */ |
1806 | if (type != EVP_PKEY_KEYMGMT) | |
1807 | keytype = OBJ_nid2sn(type); | |
1808 | ||
acb90ba8 RL |
1809 | /* |
1810 | * To be able to downgrade, we steal the provider side "origin" keymgmt | |
1811 | * and keydata. We've already grabbed the pointers, so all we need to | |
1812 | * do is clear those pointers in |pk| and then call evp_pkey_free_it(). | |
1813 | * That way, we can restore |pk| if we need to. | |
1814 | */ | |
1815 | pk->keymgmt = NULL; | |
1816 | pk->keydata = NULL; | |
1817 | evp_pkey_free_it(pk); | |
1818 | if (EVP_PKEY_set_type(pk, type)) { | |
1819 | /* If the key is typed but empty, we're done */ | |
49276c35 RL |
1820 | if (keydata == NULL) { |
1821 | /* We're dropping the EVP_KEYMGMT */ | |
1822 | EVP_KEYMGMT_free(keymgmt); | |
acb90ba8 | 1823 | return 1; |
49276c35 | 1824 | } |
badf51c8 | 1825 | |
acb90ba8 RL |
1826 | if (pk->ameth->import_from == NULL) { |
1827 | ERR_raise_data(ERR_LIB_EVP, EVP_R_NO_IMPORT_FUNCTION, | |
1828 | "key type = %s", keytype); | |
629c72db | 1829 | } else { |
acb90ba8 | 1830 | /* |
629c72db MC |
1831 | * We perform the export in the same libctx as the keymgmt that we |
1832 | * are using. | |
acb90ba8 | 1833 | */ |
629c72db MC |
1834 | OPENSSL_CTX *libctx = ossl_provider_library_context(keymgmt->prov); |
1835 | EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk, NULL); | |
1836 | if (pctx == NULL) | |
1837 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
1838 | ||
1839 | if (pctx != NULL | |
1840 | && evp_keymgmt_export(keymgmt, keydata, | |
1841 | OSSL_KEYMGMT_SELECT_ALL, | |
1842 | pk->ameth->import_from, pctx)) { | |
1843 | /* | |
1844 | * Save the provider side data in the operation cache, so they'll | |
1845 | * find it again. evp_pkey_free_it() cleared the cache, so it's | |
1846 | * safe to assume slot zero is free. | |
1847 | * Note that evp_keymgmt_util_cache_keydata() increments keymgmt's | |
1848 | * reference count. | |
1849 | */ | |
1850 | evp_keymgmt_util_cache_keydata(pk, 0, keymgmt, keydata); | |
1851 | EVP_PKEY_CTX_free(pctx); | |
1852 | ||
1853 | /* Synchronize the dirty count */ | |
1854 | pk->dirty_cnt_copy = pk->ameth->dirty_cnt(pk); | |
1855 | ||
1856 | /* evp_keymgmt_export() increased the refcount... */ | |
1857 | EVP_KEYMGMT_free(keymgmt); | |
1858 | return 1; | |
1859 | } | |
1860 | EVP_PKEY_CTX_free(pctx); | |
badf51c8 RL |
1861 | } |
1862 | ||
acb90ba8 RL |
1863 | ERR_raise_data(ERR_LIB_EVP, EVP_R_KEYMGMT_EXPORT_FAILURE, |
1864 | "key type = %s", keytype); | |
badf51c8 RL |
1865 | } |
1866 | ||
badf51c8 | 1867 | /* |
acb90ba8 RL |
1868 | * Something went wrong. This could for example happen if the keymgmt |
1869 | * turns out to be an HSM implementation that refuses to let go of some | |
1870 | * of the key data, typically the private bits. In this case, we restore | |
1871 | * the provider side internal "origin" and leave it at that. | |
badf51c8 | 1872 | */ |
af836c22 | 1873 | if (!ossl_assert(evp_keymgmt_util_assign_pkey(pk, keymgmt, keydata))) { |
acb90ba8 RL |
1874 | /* This should not be impossible */ |
1875 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1876 | return 0; | |
1877 | } | |
af836c22 | 1878 | /* evp_keymgmt_util_assign_pkey() increased the refcount... */ |
49276c35 | 1879 | EVP_KEYMGMT_free(keymgmt); |
acb90ba8 | 1880 | return 0; /* No downgrade, but at least the key is restored */ |
badf51c8 | 1881 | } |
f844f9eb | 1882 | #endif /* FIPS_MODULE */ |
96ebe52e SL |
1883 | |
1884 | const OSSL_PARAM *EVP_PKEY_gettable_params(EVP_PKEY *pkey) | |
1885 | { | |
1886 | if (pkey == NULL | |
1887 | || pkey->keymgmt == NULL | |
1888 | || pkey->keydata == NULL) | |
1889 | return 0; | |
e3efe7a5 | 1890 | return EVP_KEYMGMT_gettable_params(pkey->keymgmt); |
96ebe52e SL |
1891 | } |
1892 | ||
96ebe52e SL |
1893 | int EVP_PKEY_get_bn_param(EVP_PKEY *pkey, const char *key_name, BIGNUM **bn) |
1894 | { | |
1895 | int ret = 0; | |
1896 | OSSL_PARAM params[2]; | |
1897 | unsigned char buffer[2048]; | |
96ebe52e SL |
1898 | unsigned char *buf = NULL; |
1899 | size_t buf_sz = 0; | |
1900 | ||
1901 | if (pkey == NULL | |
1902 | || pkey->keymgmt == NULL | |
1903 | || pkey->keydata == NULL | |
1904 | || key_name == NULL | |
1905 | || bn == NULL) | |
1906 | return 0; | |
1907 | ||
1908 | memset(buffer, 0, sizeof(buffer)); | |
1909 | params[0] = OSSL_PARAM_construct_BN(key_name, buffer, sizeof(buffer)); | |
96ebe52e SL |
1910 | params[1] = OSSL_PARAM_construct_end(); |
1911 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) { | |
99ea4f02 | 1912 | if (!OSSL_PARAM_modified(params) || params[0].return_size == 0) |
96ebe52e SL |
1913 | return 0; |
1914 | buf_sz = params[0].return_size; | |
1915 | /* | |
1916 | * If it failed because the buffer was too small then allocate the | |
1917 | * required buffer size and retry. | |
1918 | */ | |
1919 | buf = OPENSSL_zalloc(buf_sz); | |
1920 | if (buf == NULL) | |
1921 | return 0; | |
1922 | params[0].data = buf; | |
1923 | params[0].data_size = buf_sz; | |
1924 | ||
1925 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) | |
1926 | goto err; | |
1927 | } | |
1928 | /* Fail if the param was not found */ | |
99ea4f02 | 1929 | if (!OSSL_PARAM_modified(params)) |
96ebe52e SL |
1930 | goto err; |
1931 | ret = OSSL_PARAM_get_BN(params, bn); | |
1932 | err: | |
1933 | OPENSSL_free(buf); | |
1934 | return ret; | |
1935 | } | |
1936 | ||
1937 | int EVP_PKEY_get_octet_string_param(EVP_PKEY *pkey, const char *key_name, | |
1938 | unsigned char *buf, size_t max_buf_sz, | |
1939 | size_t *out_sz) | |
1940 | { | |
1941 | OSSL_PARAM params[2]; | |
96ebe52e SL |
1942 | |
1943 | if (pkey == NULL | |
1944 | || pkey->keymgmt == NULL | |
1945 | || pkey->keydata == NULL | |
1946 | || key_name == NULL) | |
1947 | return 0; | |
1948 | ||
1949 | params[0] = OSSL_PARAM_construct_octet_string(key_name, buf, max_buf_sz); | |
96ebe52e | 1950 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
1951 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
1952 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
1953 | return 0; |
1954 | if (out_sz != NULL) | |
1955 | *out_sz = params[0].return_size; | |
1956 | return 1; | |
1957 | } | |
1958 | ||
1959 | int EVP_PKEY_get_utf8_string_param(EVP_PKEY *pkey, const char *key_name, | |
1960 | char *str, size_t max_buf_sz, | |
1961 | size_t *out_sz) | |
1962 | { | |
1963 | OSSL_PARAM params[2]; | |
96ebe52e SL |
1964 | |
1965 | if (pkey == NULL | |
1966 | || pkey->keymgmt == NULL | |
1967 | || pkey->keydata == NULL | |
1968 | || key_name == NULL) | |
1969 | return 0; | |
1970 | ||
1971 | params[0] = OSSL_PARAM_construct_utf8_string(key_name, str, max_buf_sz); | |
96ebe52e | 1972 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
1973 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
1974 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
1975 | return 0; |
1976 | if (out_sz != NULL) | |
1977 | *out_sz = params[0].return_size; | |
1978 | return 1; | |
1979 | } | |
1980 | ||
1981 | int EVP_PKEY_get_int_param(EVP_PKEY *pkey, const char *key_name, int *out) | |
1982 | { | |
1983 | OSSL_PARAM params[2]; | |
96ebe52e SL |
1984 | |
1985 | if (pkey == NULL | |
1986 | || pkey->keymgmt == NULL | |
1987 | || pkey->keydata == NULL | |
1988 | || key_name == NULL) | |
1989 | return 0; | |
1990 | ||
1991 | params[0] = OSSL_PARAM_construct_int(key_name, out); | |
96ebe52e | 1992 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
1993 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
1994 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
1995 | return 0; |
1996 | return 1; | |
1997 | } | |
1998 | ||
1999 | int EVP_PKEY_get_size_t_param(EVP_PKEY *pkey, const char *key_name, size_t *out) | |
2000 | { | |
2001 | OSSL_PARAM params[2]; | |
96ebe52e SL |
2002 | |
2003 | if (pkey == NULL | |
2004 | || pkey->keymgmt == NULL | |
2005 | || pkey->keydata == NULL | |
2006 | || key_name == NULL) | |
2007 | return 0; | |
2008 | ||
2009 | params[0] = OSSL_PARAM_construct_size_t(key_name, out); | |
96ebe52e | 2010 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
2011 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
2012 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
2013 | return 0; |
2014 | return 1; | |
2015 | } |