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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" |
18e377b4 | 41 | |
4f76d62f RL |
42 | #include "crypto/ec.h" |
43 | ||
44 | /* TODO remove this when the EVP_PKEY_is_a() #legacy support hack is removed */ | |
45 | #include "e_os.h" /* strcasecmp on Windows */ | |
46 | ||
8243d8d1 RL |
47 | static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str, |
48 | int len, EVP_KEYMGMT *keymgmt); | |
e683582b SL |
49 | static void evp_pkey_free_it(EVP_PKEY *key); |
50 | ||
f844f9eb | 51 | #ifndef FIPS_MODULE |
bb2297a4 | 52 | |
8158cf20 RL |
53 | /* The type of parameters selected in key parameter functions */ |
54 | # define SELECT_PARAMETERS OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS | |
55 | ||
8900f3e3 | 56 | int EVP_PKEY_bits(const EVP_PKEY *pkey) |
0f113f3e | 57 | { |
6508e858 RL |
58 | if (pkey != NULL) { |
59 | if (pkey->ameth == NULL) | |
60 | return pkey->cache.bits; | |
61 | else if (pkey->ameth->pkey_bits) | |
62 | return pkey->ameth->pkey_bits(pkey); | |
63 | } | |
0f113f3e MC |
64 | return 0; |
65 | } | |
58964a49 | 66 | |
2514fa79 | 67 | int EVP_PKEY_security_bits(const EVP_PKEY *pkey) |
0f113f3e MC |
68 | { |
69 | if (pkey == NULL) | |
70 | return 0; | |
6508e858 RL |
71 | if (pkey->ameth == NULL) |
72 | return pkey->cache.security_bits; | |
73 | if (pkey->ameth->pkey_security_bits == NULL) | |
0f113f3e MC |
74 | return -2; |
75 | return pkey->ameth->pkey_security_bits(pkey); | |
76 | } | |
2514fa79 | 77 | |
6b691a5c | 78 | int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode) |
0f113f3e | 79 | { |
e683582b | 80 | # ifndef OPENSSL_NO_DSA |
0f113f3e MC |
81 | if (pkey->type == EVP_PKEY_DSA) { |
82 | int ret = pkey->save_parameters; | |
83 | ||
84 | if (mode >= 0) | |
85 | pkey->save_parameters = mode; | |
26a7d938 | 86 | return ret; |
0f113f3e | 87 | } |
e683582b SL |
88 | # endif |
89 | # ifndef OPENSSL_NO_EC | |
0f113f3e MC |
90 | if (pkey->type == EVP_PKEY_EC) { |
91 | int ret = pkey->save_parameters; | |
92 | ||
93 | if (mode >= 0) | |
94 | pkey->save_parameters = mode; | |
26a7d938 | 95 | return ret; |
0f113f3e | 96 | } |
e683582b | 97 | # endif |
26a7d938 | 98 | return 0; |
0f113f3e | 99 | } |
d02b48c6 | 100 | |
ff1f7cde AT |
101 | int EVP_PKEY_set_ex_data(EVP_PKEY *key, int idx, void *arg) |
102 | { | |
103 | return CRYPTO_set_ex_data(&key->ex_data, idx, arg); | |
104 | } | |
105 | ||
106 | void *EVP_PKEY_get_ex_data(const EVP_PKEY *key, int idx) | |
107 | { | |
108 | return CRYPTO_get_ex_data(&key->ex_data, idx); | |
109 | } | |
110 | ||
a8b72844 | 111 | int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) |
0f113f3e | 112 | { |
ff3b59e1 RL |
113 | /* |
114 | * TODO: clean up legacy stuff from this function when legacy support | |
115 | * is gone. | |
116 | */ | |
117 | ||
118 | /* | |
acb90ba8 RL |
119 | * If |to| is a legacy key and |from| isn't, we must downgrade |from|. |
120 | * If that fails, this function fails. | |
ff3b59e1 | 121 | */ |
5e5bc836 | 122 | if (evp_pkey_is_legacy(to) && evp_pkey_is_provided(from)) |
acb90ba8 RL |
123 | if (!evp_pkey_downgrade((EVP_PKEY *)from)) |
124 | return 0; | |
125 | ||
126 | /* | |
127 | * Make sure |to| is typed. Content is less important at this early | |
128 | * stage. | |
129 | * | |
130 | * 1. If |to| is untyped, assign |from|'s key type to it. | |
131 | * 2. If |to| contains a legacy key, compare its |type| to |from|'s. | |
132 | * (|from| was already downgraded above) | |
133 | * | |
134 | * If |to| is a provided key, there's nothing more to do here, functions | |
135 | * like evp_keymgmt_util_copy() and evp_pkey_export_to_provider() called | |
136 | * further down help us find out if they are the same or not. | |
137 | */ | |
5e5bc836 RL |
138 | if (evp_pkey_is_blank(to)) { |
139 | if (evp_pkey_is_legacy(from)) { | |
ff3b59e1 RL |
140 | if (EVP_PKEY_set_type(to, from->type) == 0) |
141 | return 0; | |
acb90ba8 RL |
142 | } else { |
143 | if (EVP_PKEY_set_type_by_keymgmt(to, from->keymgmt) == 0) | |
144 | return 0; | |
145 | } | |
5e5bc836 | 146 | } else if (evp_pkey_is_legacy(to)) { |
acb90ba8 | 147 | if (to->type != from->type) { |
9311d0c4 | 148 | ERR_raise(ERR_LIB_EVP, EVP_R_DIFFERENT_KEY_TYPES); |
ff3b59e1 RL |
149 | goto err; |
150 | } | |
0f113f3e MC |
151 | } |
152 | ||
153 | if (EVP_PKEY_missing_parameters(from)) { | |
9311d0c4 | 154 | ERR_raise(ERR_LIB_EVP, EVP_R_MISSING_PARAMETERS); |
0f113f3e MC |
155 | goto err; |
156 | } | |
f72f00d4 DSH |
157 | |
158 | if (!EVP_PKEY_missing_parameters(to)) { | |
c74aaa39 | 159 | if (EVP_PKEY_parameters_eq(to, from) == 1) |
f72f00d4 | 160 | return 1; |
9311d0c4 | 161 | ERR_raise(ERR_LIB_EVP, EVP_R_DIFFERENT_PARAMETERS); |
f72f00d4 DSH |
162 | return 0; |
163 | } | |
164 | ||
ff3b59e1 RL |
165 | /* For purely provided keys, we just call the keymgmt utility */ |
166 | if (to->keymgmt != NULL && from->keymgmt != NULL) | |
8158cf20 | 167 | return evp_keymgmt_util_copy(to, (EVP_PKEY *)from, SELECT_PARAMETERS); |
ff3b59e1 RL |
168 | |
169 | /* | |
170 | * If |to| is provided, we know that |from| is legacy at this point. | |
171 | * Try exporting |from| to |to|'s keymgmt, then use evp_keymgmt_copy() | |
172 | * to copy the appropriate data to |to|'s keydata. | |
173 | */ | |
174 | if (to->keymgmt != NULL) { | |
175 | EVP_KEYMGMT *to_keymgmt = to->keymgmt; | |
176 | void *from_keydata = | |
177 | evp_pkey_export_to_provider((EVP_PKEY *)from, NULL, &to_keymgmt, | |
178 | NULL); | |
179 | ||
acb90ba8 RL |
180 | /* |
181 | * If we get a NULL, it could be an internal error, or it could be | |
182 | * that there's a key mismatch. We're pretending the latter... | |
183 | */ | |
ff3b59e1 | 184 | if (from_keydata == NULL) { |
acb90ba8 | 185 | ERR_raise(ERR_LIB_EVP, EVP_R_DIFFERENT_KEY_TYPES); |
ff3b59e1 RL |
186 | return 0; |
187 | } | |
188 | return evp_keymgmt_copy(to->keymgmt, to->keydata, from_keydata, | |
8158cf20 | 189 | SELECT_PARAMETERS); |
ff3b59e1 RL |
190 | } |
191 | ||
192 | /* Both keys are legacy */ | |
193 | if (from->ameth != NULL && from->ameth->param_copy != NULL) | |
0f113f3e MC |
194 | return from->ameth->param_copy(to, from); |
195 | err: | |
196 | return 0; | |
197 | } | |
d02b48c6 | 198 | |
af0f0f3e | 199 | int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey) |
0f113f3e | 200 | { |
157ded39 RL |
201 | if (pkey != NULL) { |
202 | if (pkey->keymgmt != NULL) | |
8158cf20 | 203 | return !evp_keymgmt_util_has((EVP_PKEY *)pkey, SELECT_PARAMETERS); |
157ded39 RL |
204 | else if (pkey->ameth != NULL && pkey->ameth->param_missing != NULL) |
205 | return pkey->ameth->param_missing(pkey); | |
206 | } | |
0f113f3e MC |
207 | return 0; |
208 | } | |
d02b48c6 | 209 | |
1e9101c4 RL |
210 | /* |
211 | * This function is called for any mixture of keys except pure legacy pair. | |
212 | * TODO When legacy keys are gone, we replace a call to this functions with | |
213 | * a call to evp_keymgmt_util_match(). | |
214 | */ | |
215 | static int evp_pkey_cmp_any(const EVP_PKEY *a, const EVP_PKEY *b, | |
216 | int selection) | |
217 | { | |
218 | EVP_KEYMGMT *keymgmt1 = NULL, *keymgmt2 = NULL; | |
219 | void *keydata1 = NULL, *keydata2 = NULL, *tmp_keydata = NULL; | |
220 | ||
221 | /* If none of them are provided, this function shouldn't have been called */ | |
a57fc730 | 222 | if (!ossl_assert(evp_pkey_is_provided(a) || evp_pkey_is_provided(b))) |
1e9101c4 RL |
223 | return -2; |
224 | ||
225 | /* For purely provided keys, we just call the keymgmt utility */ | |
a57fc730 | 226 | if (evp_pkey_is_provided(a) && evp_pkey_is_provided(b)) |
1e9101c4 RL |
227 | return evp_keymgmt_util_match((EVP_PKEY *)a, (EVP_PKEY *)b, selection); |
228 | ||
229 | /* | |
acb90ba8 RL |
230 | * At this point, one of them is provided, the other not. This allows |
231 | * us to compare types using legacy NIDs. | |
232 | */ | |
a57fc730 RL |
233 | if (evp_pkey_is_legacy(a) |
234 | && !EVP_KEYMGMT_is_a(b->keymgmt, OBJ_nid2sn(a->type))) | |
235 | return -1; /* not the same key type */ | |
236 | if (evp_pkey_is_legacy(b) | |
237 | && !EVP_KEYMGMT_is_a(a->keymgmt, OBJ_nid2sn(b->type))) | |
acb90ba8 RL |
238 | return -1; /* not the same key type */ |
239 | ||
240 | /* | |
241 | * We've determined that they both are the same keytype, so the next | |
242 | * step is to do a bit of cross export to ensure we have keydata for | |
243 | * both keys in the same keymgmt. | |
1e9101c4 RL |
244 | */ |
245 | keymgmt1 = a->keymgmt; | |
246 | keydata1 = a->keydata; | |
247 | keymgmt2 = b->keymgmt; | |
248 | keydata2 = b->keydata; | |
249 | ||
1e9101c4 RL |
250 | if (keymgmt2 != NULL && keymgmt2->match != NULL) { |
251 | tmp_keydata = | |
252 | evp_pkey_export_to_provider((EVP_PKEY *)a, NULL, &keymgmt2, NULL); | |
253 | if (tmp_keydata != NULL) { | |
254 | keymgmt1 = keymgmt2; | |
255 | keydata1 = tmp_keydata; | |
256 | } | |
257 | } | |
258 | if (tmp_keydata == NULL && keymgmt1 != NULL && keymgmt1->match != NULL) { | |
259 | tmp_keydata = | |
260 | evp_pkey_export_to_provider((EVP_PKEY *)b, NULL, &keymgmt1, NULL); | |
261 | if (tmp_keydata != NULL) { | |
262 | keymgmt2 = keymgmt1; | |
263 | keydata2 = tmp_keydata; | |
264 | } | |
265 | } | |
266 | ||
267 | /* If we still don't have matching keymgmt implementations, we give up */ | |
268 | if (keymgmt1 != keymgmt2) | |
269 | return -2; | |
270 | ||
a24b510c RL |
271 | /* If the keymgmt implementations are NULL, the export failed */ |
272 | if (keymgmt1 == NULL) | |
273 | return -2; | |
274 | ||
1e9101c4 RL |
275 | return evp_keymgmt_match(keymgmt1, keydata1, keydata2, selection); |
276 | } | |
277 | ||
af0f0f3e | 278 | int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) |
c74aaa39 DDO |
279 | { |
280 | return EVP_PKEY_parameters_eq(a, b); | |
281 | } | |
c74aaa39 DDO |
282 | |
283 | int EVP_PKEY_parameters_eq(const EVP_PKEY *a, const EVP_PKEY *b) | |
0f113f3e | 284 | { |
1e9101c4 RL |
285 | /* |
286 | * TODO: clean up legacy stuff from this function when legacy support | |
287 | * is gone. | |
288 | */ | |
289 | ||
290 | if (a->keymgmt != NULL || b->keymgmt != NULL) | |
8158cf20 | 291 | return evp_pkey_cmp_any(a, b, SELECT_PARAMETERS); |
1e9101c4 RL |
292 | |
293 | /* All legacy keys */ | |
0f113f3e MC |
294 | if (a->type != b->type) |
295 | return -1; | |
1e9101c4 | 296 | if (a->ameth != NULL && a->ameth->param_cmp != NULL) |
0f113f3e MC |
297 | return a->ameth->param_cmp(a, b); |
298 | return -2; | |
299 | } | |
58964a49 | 300 | |
af0f0f3e | 301 | int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b) |
c74aaa39 DDO |
302 | { |
303 | return EVP_PKEY_eq(a, b); | |
304 | } | |
c74aaa39 DDO |
305 | |
306 | int EVP_PKEY_eq(const EVP_PKEY *a, const EVP_PKEY *b) | |
0f113f3e | 307 | { |
1e9101c4 RL |
308 | /* |
309 | * TODO: clean up legacy stuff from this function when legacy support | |
310 | * is gone. | |
311 | */ | |
312 | ||
313 | if (a->keymgmt != NULL || b->keymgmt != NULL) | |
8158cf20 RL |
314 | return evp_pkey_cmp_any(a, b, (SELECT_PARAMETERS |
315 | | OSSL_KEYMGMT_SELECT_PUBLIC_KEY)); | |
1e9101c4 RL |
316 | |
317 | /* All legacy keys */ | |
0f113f3e MC |
318 | if (a->type != b->type) |
319 | return -1; | |
320 | ||
1e9101c4 | 321 | if (a->ameth != NULL) { |
0f113f3e MC |
322 | int ret; |
323 | /* Compare parameters if the algorithm has them */ | |
1e9101c4 | 324 | if (a->ameth->param_cmp != NULL) { |
0f113f3e MC |
325 | ret = a->ameth->param_cmp(a, b); |
326 | if (ret <= 0) | |
327 | return ret; | |
328 | } | |
329 | ||
1e9101c4 | 330 | if (a->ameth->pub_cmp != NULL) |
0f113f3e MC |
331 | return a->ameth->pub_cmp(a, b); |
332 | } | |
333 | ||
334 | return -2; | |
335 | } | |
e6526fbf | 336 | |
1c4f340d | 337 | |
b4250010 | 338 | static EVP_PKEY *new_raw_key_int(OSSL_LIB_CTX *libctx, |
1c4f340d MC |
339 | const char *strtype, |
340 | const char *propq, | |
341 | int nidtype, | |
342 | ENGINE *e, | |
343 | const unsigned char *key, | |
344 | size_t len, | |
345 | int key_is_priv) | |
a08802ce | 346 | { |
1c4f340d MC |
347 | EVP_PKEY *pkey = NULL; |
348 | EVP_PKEY_CTX *ctx = NULL; | |
349 | const EVP_PKEY_ASN1_METHOD *ameth = NULL; | |
350 | int result = 0; | |
351 | ||
352 | # ifndef OPENSSL_NO_ENGINE | |
353 | /* Check if there is an Engine for this type */ | |
354 | if (e == NULL) { | |
355 | ENGINE *tmpe = NULL; | |
356 | ||
357 | if (strtype != NULL) | |
358 | ameth = EVP_PKEY_asn1_find_str(&tmpe, strtype, -1); | |
359 | else if (nidtype != EVP_PKEY_NONE) | |
360 | ameth = EVP_PKEY_asn1_find(&tmpe, nidtype); | |
361 | ||
362 | /* If tmpe is NULL then no engine is claiming to support this type */ | |
363 | if (tmpe == NULL) | |
364 | ameth = NULL; | |
365 | ||
366 | ENGINE_finish(tmpe); | |
367 | } | |
368 | # endif | |
a08802ce | 369 | |
1c4f340d MC |
370 | if (e == NULL && ameth == NULL) { |
371 | /* | |
372 | * No engine is claiming to support this type, so lets see if we have | |
373 | * a provider. | |
374 | */ | |
375 | ctx = EVP_PKEY_CTX_new_from_name(libctx, | |
376 | strtype != NULL ? strtype | |
377 | : OBJ_nid2sn(nidtype), | |
378 | propq); | |
4feda976 | 379 | if (ctx == NULL) |
1c4f340d | 380 | goto err; |
1c4f340d MC |
381 | /* May fail if no provider available */ |
382 | ERR_set_mark(); | |
383 | if (EVP_PKEY_key_fromdata_init(ctx) == 1) { | |
384 | OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
385 | ||
386 | ERR_clear_last_mark(); | |
387 | params[0] = OSSL_PARAM_construct_octet_string( | |
388 | key_is_priv ? OSSL_PKEY_PARAM_PRIV_KEY | |
389 | : OSSL_PKEY_PARAM_PUB_KEY, | |
390 | (void *)key, len); | |
391 | ||
392 | if (EVP_PKEY_fromdata(ctx, &pkey, params) != 1) { | |
9311d0c4 | 393 | ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED); |
1c4f340d MC |
394 | goto err; |
395 | } | |
396 | ||
397 | EVP_PKEY_CTX_free(ctx); | |
398 | ||
399 | return pkey; | |
400 | } | |
401 | ERR_pop_to_mark(); | |
402 | /* else not supported so fallback to legacy */ | |
a08802ce MC |
403 | } |
404 | ||
1c4f340d MC |
405 | /* Legacy code path */ |
406 | ||
407 | pkey = EVP_PKEY_new(); | |
408 | if (pkey == NULL) { | |
9311d0c4 | 409 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
a08802ce MC |
410 | goto err; |
411 | } | |
412 | ||
1c4f340d MC |
413 | if (!pkey_set_type(pkey, e, nidtype, strtype, -1, NULL)) { |
414 | /* EVPerr already called */ | |
a08802ce MC |
415 | goto err; |
416 | } | |
417 | ||
1c4f340d MC |
418 | if (!ossl_assert(pkey->ameth != NULL)) |
419 | goto err; | |
a08802ce | 420 | |
1c4f340d MC |
421 | if (key_is_priv) { |
422 | if (pkey->ameth->set_priv_key == NULL) { | |
9311d0c4 | 423 | ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
1c4f340d MC |
424 | goto err; |
425 | } | |
a08802ce | 426 | |
1c4f340d | 427 | if (!pkey->ameth->set_priv_key(pkey, key, len)) { |
9311d0c4 | 428 | ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED); |
1c4f340d MC |
429 | goto err; |
430 | } | |
431 | } else { | |
432 | if (pkey->ameth->set_pub_key == NULL) { | |
9311d0c4 | 433 | ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
1c4f340d MC |
434 | goto err; |
435 | } | |
a08802ce | 436 | |
1c4f340d | 437 | if (!pkey->ameth->set_pub_key(pkey, key, len)) { |
9311d0c4 | 438 | ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED); |
1c4f340d MC |
439 | goto err; |
440 | } | |
a08802ce MC |
441 | } |
442 | ||
1c4f340d MC |
443 | result = 1; |
444 | err: | |
445 | if (!result) { | |
446 | EVP_PKEY_free(pkey); | |
447 | pkey = NULL; | |
a08802ce | 448 | } |
1c4f340d MC |
449 | EVP_PKEY_CTX_free(ctx); |
450 | return pkey; | |
451 | } | |
a08802ce | 452 | |
b4250010 | 453 | EVP_PKEY *EVP_PKEY_new_raw_private_key_ex(OSSL_LIB_CTX *libctx, |
d8652be0 MC |
454 | const char *keytype, |
455 | const char *propq, | |
456 | const unsigned char *priv, size_t len) | |
1c4f340d MC |
457 | { |
458 | return new_raw_key_int(libctx, keytype, propq, EVP_PKEY_NONE, NULL, priv, | |
459 | len, 1); | |
460 | } | |
a08802ce | 461 | |
1c4f340d MC |
462 | EVP_PKEY *EVP_PKEY_new_raw_private_key(int type, ENGINE *e, |
463 | const unsigned char *priv, | |
464 | size_t len) | |
465 | { | |
466 | return new_raw_key_int(NULL, NULL, NULL, type, e, priv, len, 1); | |
467 | } | |
a08802ce | 468 | |
b4250010 | 469 | EVP_PKEY *EVP_PKEY_new_raw_public_key_ex(OSSL_LIB_CTX *libctx, |
d8652be0 MC |
470 | const char *keytype, const char *propq, |
471 | const unsigned char *pub, size_t len) | |
1c4f340d MC |
472 | { |
473 | return new_raw_key_int(libctx, keytype, propq, EVP_PKEY_NONE, NULL, pub, | |
474 | len, 0); | |
475 | } | |
476 | ||
477 | EVP_PKEY *EVP_PKEY_new_raw_public_key(int type, ENGINE *e, | |
478 | const unsigned char *pub, | |
479 | size_t len) | |
480 | { | |
481 | return new_raw_key_int(NULL, NULL, NULL, type, e, pub, len, 0); | |
a08802ce MC |
482 | } |
483 | ||
c19d8978 MC |
484 | struct raw_key_details_st |
485 | { | |
486 | unsigned char **key; | |
487 | size_t *len; | |
488 | int selection; | |
489 | }; | |
490 | ||
491 | static OSSL_CALLBACK get_raw_key_details; | |
492 | static int get_raw_key_details(const OSSL_PARAM params[], void *arg) | |
493 | { | |
494 | const OSSL_PARAM *p = NULL; | |
495 | struct raw_key_details_st *raw_key = arg; | |
496 | ||
497 | if (raw_key->selection == OSSL_KEYMGMT_SELECT_PRIVATE_KEY) { | |
498 | if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PRIV_KEY)) | |
499 | != NULL) | |
500 | return OSSL_PARAM_get_octet_string(p, (void **)raw_key->key, | |
501 | SIZE_MAX, raw_key->len); | |
502 | } else if (raw_key->selection == OSSL_KEYMGMT_SELECT_PUBLIC_KEY) { | |
503 | if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PUB_KEY)) | |
504 | != NULL) | |
505 | return OSSL_PARAM_get_octet_string(p, (void **)raw_key->key, | |
506 | SIZE_MAX, raw_key->len); | |
507 | } | |
508 | ||
509 | return 0; | |
510 | } | |
511 | ||
0d124b0a MC |
512 | int EVP_PKEY_get_raw_private_key(const EVP_PKEY *pkey, unsigned char *priv, |
513 | size_t *len) | |
514 | { | |
c19d8978 MC |
515 | if (pkey->keymgmt != NULL) { |
516 | struct raw_key_details_st raw_key; | |
517 | ||
518 | raw_key.key = priv == NULL ? NULL : &priv; | |
519 | raw_key.len = len; | |
520 | raw_key.selection = OSSL_KEYMGMT_SELECT_PRIVATE_KEY; | |
521 | ||
655f73ce RL |
522 | return evp_keymgmt_util_export(pkey, OSSL_KEYMGMT_SELECT_PRIVATE_KEY, |
523 | get_raw_key_details, &raw_key); | |
c19d8978 MC |
524 | } |
525 | ||
526 | if (pkey->ameth == NULL) { | |
9311d0c4 | 527 | ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
c19d8978 MC |
528 | return 0; |
529 | } | |
530 | ||
531 | if (pkey->ameth->get_priv_key == NULL) { | |
9311d0c4 | 532 | ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
0d124b0a MC |
533 | return 0; |
534 | } | |
535 | ||
536 | if (!pkey->ameth->get_priv_key(pkey, priv, len)) { | |
9311d0c4 | 537 | ERR_raise(ERR_LIB_EVP, EVP_R_GET_RAW_KEY_FAILED); |
0d124b0a MC |
538 | return 0; |
539 | } | |
540 | ||
541 | return 1; | |
542 | } | |
543 | ||
544 | int EVP_PKEY_get_raw_public_key(const EVP_PKEY *pkey, unsigned char *pub, | |
545 | size_t *len) | |
546 | { | |
c19d8978 MC |
547 | if (pkey->keymgmt != NULL) { |
548 | struct raw_key_details_st raw_key; | |
549 | ||
550 | raw_key.key = pub == NULL ? NULL : &pub; | |
551 | raw_key.len = len; | |
552 | raw_key.selection = OSSL_KEYMGMT_SELECT_PUBLIC_KEY; | |
553 | ||
655f73ce RL |
554 | return evp_keymgmt_util_export(pkey, OSSL_KEYMGMT_SELECT_PUBLIC_KEY, |
555 | get_raw_key_details, &raw_key); | |
c19d8978 MC |
556 | } |
557 | ||
558 | if (pkey->ameth == NULL) { | |
9311d0c4 | 559 | ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
c19d8978 MC |
560 | return 0; |
561 | } | |
562 | ||
0d124b0a | 563 | if (pkey->ameth->get_pub_key == NULL) { |
9311d0c4 | 564 | ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
0d124b0a MC |
565 | return 0; |
566 | } | |
567 | ||
568 | if (!pkey->ameth->get_pub_key(pkey, pub, len)) { | |
9311d0c4 | 569 | ERR_raise(ERR_LIB_EVP, EVP_R_GET_RAW_KEY_FAILED); |
0d124b0a MC |
570 | return 0; |
571 | } | |
572 | ||
573 | return 1; | |
574 | } | |
575 | ||
a540ef90 MC |
576 | static EVP_PKEY *new_cmac_key_int(const unsigned char *priv, size_t len, |
577 | const char *cipher_name, | |
b4250010 DMSP |
578 | const EVP_CIPHER *cipher, |
579 | OSSL_LIB_CTX *libctx, | |
a540ef90 | 580 | const char *propq, ENGINE *e) |
b3831fbb | 581 | { |
e683582b SL |
582 | # ifndef OPENSSL_NO_CMAC |
583 | # ifndef OPENSSL_NO_ENGINE | |
9a7846df | 584 | const char *engine_id = e != NULL ? ENGINE_get_id(e) : NULL; |
e683582b | 585 | # endif |
2ef9a7ac | 586 | OSSL_PARAM params[5], *p = params; |
a540ef90 MC |
587 | EVP_PKEY *pkey = NULL; |
588 | EVP_PKEY_CTX *ctx; | |
589 | ||
590 | if (cipher != NULL) | |
591 | cipher_name = EVP_CIPHER_name(cipher); | |
592 | ||
593 | if (cipher_name == NULL) { | |
9311d0c4 | 594 | ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED); |
a540ef90 MC |
595 | return NULL; |
596 | } | |
597 | ||
598 | ctx = EVP_PKEY_CTX_new_from_name(libctx, "CMAC", propq); | |
20d56d6d | 599 | if (ctx == NULL) |
a540ef90 | 600 | goto err; |
a540ef90 MC |
601 | |
602 | if (!EVP_PKEY_key_fromdata_init(ctx)) { | |
9311d0c4 | 603 | ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED); |
b3831fbb MC |
604 | goto err; |
605 | } | |
606 | ||
a540ef90 MC |
607 | *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_PRIV_KEY, |
608 | (void *)priv, len); | |
609 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_CIPHER, | |
610 | (char *)cipher_name, 0); | |
2ef9a7ac MC |
611 | if (propq != NULL) |
612 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_PROPERTIES, | |
613 | (char *)propq, 0); | |
e683582b | 614 | # ifndef OPENSSL_NO_ENGINE |
9a7846df | 615 | if (engine_id != NULL) |
a540ef90 MC |
616 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_ENGINE, |
617 | (char *)engine_id, 0); | |
e683582b | 618 | # endif |
a540ef90 | 619 | *p = OSSL_PARAM_construct_end(); |
3be06e0d | 620 | |
a540ef90 | 621 | if (!EVP_PKEY_fromdata(ctx, &pkey, params)) { |
9311d0c4 | 622 | ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED); |
b3831fbb MC |
623 | goto err; |
624 | } | |
625 | ||
b3831fbb | 626 | err: |
a540ef90 MC |
627 | EVP_PKEY_CTX_free(ctx); |
628 | ||
629 | return pkey; | |
e683582b | 630 | # else |
9311d0c4 | 631 | ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
df6d51e2 | 632 | return NULL; |
e683582b | 633 | # endif |
b3831fbb | 634 | } |
a08802ce | 635 | |
d8652be0 | 636 | EVP_PKEY *EVP_PKEY_new_CMAC_key_ex(const unsigned char *priv, size_t len, |
b4250010 | 637 | const char *cipher_name, OSSL_LIB_CTX *libctx, |
d8652be0 | 638 | const char *propq) |
a540ef90 MC |
639 | { |
640 | return new_cmac_key_int(priv, len, cipher_name, NULL, libctx, propq, NULL); | |
641 | } | |
642 | ||
643 | EVP_PKEY *EVP_PKEY_new_CMAC_key(ENGINE *e, const unsigned char *priv, | |
644 | size_t len, const EVP_CIPHER *cipher) | |
645 | { | |
646 | return new_cmac_key_int(priv, len, NULL, cipher, NULL, NULL, e); | |
647 | } | |
648 | ||
01b8b3c7 | 649 | int EVP_PKEY_set_type(EVP_PKEY *pkey, int type) |
0f113f3e | 650 | { |
8243d8d1 | 651 | return pkey_set_type(pkey, NULL, type, NULL, -1, NULL); |
0f113f3e | 652 | } |
01b8b3c7 DSH |
653 | |
654 | int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len) | |
0f113f3e | 655 | { |
8243d8d1 | 656 | return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, str, len, NULL); |
0f113f3e | 657 | } |
2f2e6b62 | 658 | |
14711fff | 659 | #ifndef OPENSSL_NO_DEPRECATED_3_0 |
2f2e6b62 JL |
660 | int EVP_PKEY_set_alias_type(EVP_PKEY *pkey, int type) |
661 | { | |
14711fff RL |
662 | if (!evp_pkey_is_legacy(pkey)) { |
663 | const char *name = OBJ_nid2sn(type); | |
664 | ||
665 | if (name != NULL && EVP_PKEY_is_a(pkey, name)) | |
666 | return 1; | |
667 | ||
668 | ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION); | |
669 | return 0; | |
670 | } | |
671 | ||
2f2e6b62 JL |
672 | if (pkey->type == type) { |
673 | return 1; /* it already is that type */ | |
674 | } | |
675 | ||
676 | /* | |
677 | * The application is requesting to alias this to a different pkey type, | |
678 | * but not one that resolves to the base type. | |
679 | */ | |
680 | if (EVP_PKEY_type(type) != EVP_PKEY_base_id(pkey)) { | |
9311d0c4 | 681 | ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM); |
2f2e6b62 JL |
682 | return 0; |
683 | } | |
684 | ||
685 | pkey->type = type; | |
686 | return 1; | |
687 | } | |
14711fff | 688 | #endif |
2f2e6b62 | 689 | |
e683582b | 690 | # ifndef OPENSSL_NO_ENGINE |
d19b01ad DSH |
691 | int EVP_PKEY_set1_engine(EVP_PKEY *pkey, ENGINE *e) |
692 | { | |
693 | if (e != NULL) { | |
694 | if (!ENGINE_init(e)) { | |
9311d0c4 | 695 | ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB); |
d19b01ad DSH |
696 | return 0; |
697 | } | |
698 | if (ENGINE_get_pkey_meth(e, pkey->type) == NULL) { | |
699 | ENGINE_finish(e); | |
9311d0c4 | 700 | ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM); |
d19b01ad DSH |
701 | return 0; |
702 | } | |
703 | } | |
704 | ENGINE_finish(pkey->pmeth_engine); | |
705 | pkey->pmeth_engine = e; | |
706 | return 1; | |
707 | } | |
229f7b38 DB |
708 | |
709 | ENGINE *EVP_PKEY_get0_engine(const EVP_PKEY *pkey) | |
710 | { | |
711 | return pkey->engine; | |
712 | } | |
e683582b | 713 | # endif |
01b8b3c7 | 714 | int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) |
0f113f3e | 715 | { |
f4e4382c RL |
716 | int alias = type; |
717 | ||
ad5b71be | 718 | #ifndef OPENSSL_NO_EC |
4bb73d54 | 719 | if ((key != NULL) && (EVP_PKEY_type(type) == EVP_PKEY_EC)) { |
f4e4382c RL |
720 | const EC_GROUP *group = EC_KEY_get0_group(key); |
721 | ||
722 | if (group != NULL && EC_GROUP_get_curve_name(group) == NID_sm2) | |
723 | alias = EVP_PKEY_SM2; | |
724 | } | |
ad5b71be | 725 | #endif |
f4e4382c | 726 | |
e34c66c6 | 727 | if (pkey == NULL || !EVP_PKEY_set_type(pkey, type)) |
0f113f3e | 728 | return 0; |
f4e4382c RL |
729 | if (!EVP_PKEY_set_alias_type(pkey, alias)) |
730 | return 0; | |
0f113f3e MC |
731 | pkey->pkey.ptr = key; |
732 | return (key != NULL); | |
733 | } | |
d02b48c6 | 734 | |
3aeb9348 | 735 | void *EVP_PKEY_get0(const EVP_PKEY *pkey) |
0f113f3e | 736 | { |
3c1ccfea SL |
737 | if (pkey == NULL) |
738 | return NULL; | |
acb90ba8 RL |
739 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
740 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
741 | return NULL; | |
742 | } | |
0f113f3e MC |
743 | return pkey->pkey.ptr; |
744 | } | |
db98bbc1 | 745 | |
ebad0b0b NM |
746 | const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len) |
747 | { | |
748 | ASN1_OCTET_STRING *os = NULL; | |
749 | if (pkey->type != EVP_PKEY_HMAC) { | |
9311d0c4 | 750 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_AN_HMAC_KEY); |
ebad0b0b NM |
751 | return NULL; |
752 | } | |
753 | os = EVP_PKEY_get0(pkey); | |
754 | *len = os->length; | |
755 | return os->data; | |
756 | } | |
757 | ||
e683582b | 758 | # ifndef OPENSSL_NO_POLY1305 |
52ad5b60 TS |
759 | const unsigned char *EVP_PKEY_get0_poly1305(const EVP_PKEY *pkey, size_t *len) |
760 | { | |
761 | ASN1_OCTET_STRING *os = NULL; | |
762 | if (pkey->type != EVP_PKEY_POLY1305) { | |
9311d0c4 | 763 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_POLY1305_KEY); |
52ad5b60 TS |
764 | return NULL; |
765 | } | |
766 | os = EVP_PKEY_get0(pkey); | |
767 | *len = os->length; | |
768 | return os->data; | |
769 | } | |
e683582b | 770 | # endif |
52ad5b60 | 771 | |
e683582b | 772 | # ifndef OPENSSL_NO_SIPHASH |
3f5616d7 TS |
773 | const unsigned char *EVP_PKEY_get0_siphash(const EVP_PKEY *pkey, size_t *len) |
774 | { | |
775 | ASN1_OCTET_STRING *os = NULL; | |
776 | ||
777 | if (pkey->type != EVP_PKEY_SIPHASH) { | |
9311d0c4 | 778 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_SIPHASH_KEY); |
3f5616d7 TS |
779 | return NULL; |
780 | } | |
781 | os = EVP_PKEY_get0(pkey); | |
782 | *len = os->length; | |
783 | return os->data; | |
784 | } | |
e683582b | 785 | # endif |
3f5616d7 | 786 | |
e683582b | 787 | # ifndef OPENSSL_NO_DSA |
9fdcc21f | 788 | DSA *EVP_PKEY_get0_DSA(const EVP_PKEY *pkey) |
0f113f3e | 789 | { |
acb90ba8 RL |
790 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
791 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
792 | return NULL; | |
793 | } | |
0f113f3e | 794 | if (pkey->type != EVP_PKEY_DSA) { |
9311d0c4 | 795 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_DSA_KEY); |
0f113f3e MC |
796 | return NULL; |
797 | } | |
0f113f3e | 798 | return pkey->pkey.dsa; |
f769ce3e | 799 | } |
2872dbe1 | 800 | |
b03ec3b5 SL |
801 | int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) |
802 | { | |
803 | int ret = EVP_PKEY_assign_DSA(pkey, key); | |
804 | if (ret) | |
805 | DSA_up_ref(key); | |
806 | return ret; | |
807 | } | |
2872dbe1 DSH |
808 | DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) |
809 | { | |
810 | DSA *ret = EVP_PKEY_get0_DSA(pkey); | |
811 | if (ret != NULL) | |
812 | DSA_up_ref(ret); | |
813 | return ret; | |
814 | } | |
b03ec3b5 | 815 | # endif /* OPENSSL_NO_DSA */ |
f844f9eb | 816 | #endif /* FIPS_MODULE */ |
f769ce3e | 817 | |
f844f9eb | 818 | #ifndef FIPS_MODULE |
e683582b | 819 | # ifndef OPENSSL_NO_EC |
14a7cfb3 | 820 | int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) |
4d94ae00 | 821 | { |
0f113f3e MC |
822 | int ret = EVP_PKEY_assign_EC_KEY(pkey, key); |
823 | if (ret) | |
824 | EC_KEY_up_ref(key); | |
825 | return ret; | |
4d94ae00 BM |
826 | } |
827 | ||
9fdcc21f | 828 | EC_KEY *EVP_PKEY_get0_EC_KEY(const EVP_PKEY *pkey) |
4d94ae00 | 829 | { |
acb90ba8 RL |
830 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
831 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
832 | return NULL; | |
833 | } | |
f4e4382c | 834 | if (EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) { |
9311d0c4 | 835 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_EC_KEY); |
0f113f3e MC |
836 | return NULL; |
837 | } | |
0f113f3e | 838 | return pkey->pkey.ec; |
4d94ae00 | 839 | } |
2872dbe1 DSH |
840 | |
841 | EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) | |
842 | { | |
843 | EC_KEY *ret = EVP_PKEY_get0_EC_KEY(pkey); | |
844 | if (ret != NULL) | |
845 | EC_KEY_up_ref(ret); | |
846 | return ret; | |
847 | } | |
7c664b1f | 848 | |
25b16562 | 849 | static ECX_KEY *evp_pkey_get0_ECX_KEY(const EVP_PKEY *pkey, int type) |
7c664b1f RL |
850 | { |
851 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { | |
852 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
853 | return NULL; | |
854 | } | |
855 | if (EVP_PKEY_base_id(pkey) != type) { | |
856 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_ECX_KEY); | |
857 | return NULL; | |
858 | } | |
859 | return pkey->pkey.ecx; | |
860 | } | |
861 | ||
25b16562 | 862 | static ECX_KEY *evp_pkey_get1_ECX_KEY(EVP_PKEY *pkey, int type) |
7c664b1f | 863 | { |
25b16562 | 864 | ECX_KEY *ret = evp_pkey_get0_ECX_KEY(pkey, type); |
7c664b1f RL |
865 | if (ret != NULL) |
866 | ecx_key_up_ref(ret); | |
867 | return ret; | |
868 | } | |
869 | ||
870 | # define IMPLEMENT_ECX_VARIANT(NAME) \ | |
25b16562 | 871 | ECX_KEY *evp_pkey_get1_##NAME(EVP_PKEY *pkey) \ |
7c664b1f | 872 | { \ |
25b16562 | 873 | return evp_pkey_get1_ECX_KEY(pkey, EVP_PKEY_##NAME); \ |
7c664b1f RL |
874 | } |
875 | IMPLEMENT_ECX_VARIANT(X25519) | |
876 | IMPLEMENT_ECX_VARIANT(X448) | |
877 | IMPLEMENT_ECX_VARIANT(ED25519) | |
878 | IMPLEMENT_ECX_VARIANT(ED448) | |
879 | ||
e683582b | 880 | # endif |
4d94ae00 | 881 | |
e683582b | 882 | # ifndef OPENSSL_NO_DH |
52664f50 | 883 | |
c7cb16a8 | 884 | int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) |
52664f50 | 885 | { |
32c869ff MC |
886 | int type = DH_get0_q(key) == NULL ? EVP_PKEY_DH : EVP_PKEY_DHX; |
887 | int ret = EVP_PKEY_assign(pkey, type, key); | |
888 | ||
0f113f3e MC |
889 | if (ret) |
890 | DH_up_ref(key); | |
891 | return ret; | |
52664f50 DSH |
892 | } |
893 | ||
9fdcc21f | 894 | DH *EVP_PKEY_get0_DH(const EVP_PKEY *pkey) |
0f113f3e | 895 | { |
acb90ba8 RL |
896 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
897 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
898 | return NULL; | |
899 | } | |
0f113f3e | 900 | if (pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) { |
9311d0c4 | 901 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_DH_KEY); |
0f113f3e MC |
902 | return NULL; |
903 | } | |
0f113f3e | 904 | return pkey->pkey.dh; |
f769ce3e | 905 | } |
2872dbe1 DSH |
906 | |
907 | DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) | |
908 | { | |
909 | DH *ret = EVP_PKEY_get0_DH(pkey); | |
910 | if (ret != NULL) | |
911 | DH_up_ref(ret); | |
912 | return ret; | |
913 | } | |
e683582b | 914 | # endif |
f769ce3e | 915 | |
6b691a5c | 916 | int EVP_PKEY_type(int type) |
0f113f3e MC |
917 | { |
918 | int ret; | |
919 | const EVP_PKEY_ASN1_METHOD *ameth; | |
920 | ENGINE *e; | |
921 | ameth = EVP_PKEY_asn1_find(&e, type); | |
922 | if (ameth) | |
923 | ret = ameth->pkey_id; | |
924 | else | |
925 | ret = NID_undef; | |
e683582b | 926 | # ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 927 | ENGINE_finish(e); |
e683582b | 928 | # endif |
0f113f3e MC |
929 | return ret; |
930 | } | |
d02b48c6 | 931 | |
7f57b076 | 932 | int EVP_PKEY_id(const EVP_PKEY *pkey) |
0f113f3e MC |
933 | { |
934 | return pkey->type; | |
935 | } | |
7f57b076 DSH |
936 | |
937 | int EVP_PKEY_base_id(const EVP_PKEY *pkey) | |
0f113f3e MC |
938 | { |
939 | return EVP_PKEY_type(pkey->type); | |
940 | } | |
7f57b076 | 941 | |
50914496 RL |
942 | #ifndef FIPS_MODULE |
943 | int evp_pkey_name2type(const char *name) | |
944 | { | |
945 | /* | |
946 | * These hard coded cases are pure hackery to get around the fact | |
947 | * that names in crypto/objects/objects.txt are a mess. There is | |
948 | * no "EC", and "RSA" leads to the NID for 2.5.8.1.1, an OID that's | |
949 | * fallen out in favor of { pkcs-1 1 }, i.e. 1.2.840.113549.1.1.1, | |
950 | * the NID of which is used for EVP_PKEY_RSA. Strangely enough, | |
951 | * "DSA" is accurate... but still, better be safe and hard-code | |
952 | * names that we know. | |
953 | * On a similar topic, EVP_PKEY_type(EVP_PKEY_SM2) will result in | |
954 | * EVP_PKEY_EC, because of aliasing. | |
955 | * TODO Clean this away along with all other #legacy support. | |
956 | */ | |
957 | int type = NID_undef; | |
958 | ||
959 | if (strcasecmp(name, "RSA") == 0) | |
960 | type = EVP_PKEY_RSA; | |
961 | else if (strcasecmp(name, "RSA-PSS") == 0) | |
962 | type = EVP_PKEY_RSA_PSS; | |
963 | else if (strcasecmp(name, "EC") == 0) | |
964 | type = EVP_PKEY_EC; | |
965 | else if (strcasecmp(name, "ED25519") == 0) | |
966 | type = EVP_PKEY_ED25519; | |
967 | else if (strcasecmp(name, "ED448") == 0) | |
968 | type = EVP_PKEY_ED448; | |
969 | else if (strcasecmp(name, "X25519") == 0) | |
970 | type = EVP_PKEY_X25519; | |
971 | else if (strcasecmp(name, "X448") == 0) | |
972 | type = EVP_PKEY_X448; | |
973 | else if (strcasecmp(name, "SM2") == 0) | |
974 | type = EVP_PKEY_SM2; | |
975 | else if (strcasecmp(name, "DH") == 0) | |
976 | type = EVP_PKEY_DH; | |
977 | else if (strcasecmp(name, "X9.42 DH") == 0) | |
978 | type = EVP_PKEY_DHX; | |
979 | else if (strcasecmp(name, "DSA") == 0) | |
980 | type = EVP_PKEY_DSA; | |
981 | ||
982 | if (type == NID_undef) | |
983 | type = EVP_PKEY_type(OBJ_sn2nid(name)); | |
984 | if (type == NID_undef) | |
985 | type = EVP_PKEY_type(OBJ_ln2nid(name)); | |
986 | ||
987 | return type; | |
988 | } | |
989 | #endif | |
990 | ||
4f76d62f RL |
991 | int EVP_PKEY_is_a(const EVP_PKEY *pkey, const char *name) |
992 | { | |
f844f9eb | 993 | #ifndef FIPS_MODULE |
4f76d62f | 994 | if (pkey->keymgmt == NULL) { |
50914496 | 995 | int type = evp_pkey_name2type(name); |
4f76d62f | 996 | |
50914496 | 997 | return pkey->type == type; |
4f76d62f RL |
998 | } |
999 | #endif | |
1000 | return EVP_KEYMGMT_is_a(pkey->keymgmt, name); | |
1001 | } | |
1002 | ||
ae12eac0 RL |
1003 | void EVP_PKEY_typenames_do_all(const EVP_PKEY *pkey, |
1004 | void (*fn)(const char *name, void *data), | |
1005 | void *data) | |
1006 | { | |
1007 | if (!evp_pkey_is_typed(pkey)) | |
1008 | return; | |
1009 | ||
1010 | if (!evp_pkey_is_provided(pkey)) { | |
1011 | const char *name = OBJ_nid2sn(EVP_PKEY_id(pkey)); | |
1012 | ||
1013 | fn(name, data); | |
1014 | return; | |
1015 | } | |
1016 | EVP_KEYMGMT_names_do_all(pkey->keymgmt, fn, data); | |
1017 | } | |
1018 | ||
4f76d62f RL |
1019 | int EVP_PKEY_can_sign(const EVP_PKEY *pkey) |
1020 | { | |
1021 | if (pkey->keymgmt == NULL) { | |
1022 | switch (EVP_PKEY_base_id(pkey)) { | |
1023 | case EVP_PKEY_RSA: | |
1024 | return 1; | |
1025 | #ifndef OPENSSL_NO_DSA | |
1026 | case EVP_PKEY_DSA: | |
1027 | return 1; | |
1028 | #endif | |
1029 | #ifndef OPENSSL_NO_EC | |
1030 | case EVP_PKEY_ED25519: | |
1031 | case EVP_PKEY_ED448: | |
1032 | return 1; | |
1033 | case EVP_PKEY_EC: /* Including SM2 */ | |
1034 | return EC_KEY_can_sign(pkey->pkey.ec); | |
1035 | #endif | |
1036 | default: | |
1037 | break; | |
1038 | } | |
1039 | } else { | |
1040 | const OSSL_PROVIDER *prov = EVP_KEYMGMT_provider(pkey->keymgmt); | |
a829b735 | 1041 | OSSL_LIB_CTX *libctx = ossl_provider_libctx(prov); |
4f76d62f RL |
1042 | const char *supported_sig = |
1043 | pkey->keymgmt->query_operation_name != NULL | |
1044 | ? pkey->keymgmt->query_operation_name(OSSL_OP_SIGNATURE) | |
1045 | : evp_first_name(prov, pkey->keymgmt->name_id); | |
1046 | EVP_SIGNATURE *signature = NULL; | |
1047 | ||
1048 | signature = EVP_SIGNATURE_fetch(libctx, supported_sig, NULL); | |
1049 | if (signature != NULL) { | |
1050 | EVP_SIGNATURE_free(signature); | |
1051 | return 1; | |
1052 | } | |
1053 | } | |
1054 | return 0; | |
1055 | } | |
d02b48c6 | 1056 | |
c2041da8 RL |
1057 | #ifndef OPENSSL_NO_EC |
1058 | /* | |
1059 | * TODO rewrite when we have proper data extraction functions | |
1060 | * Note: an octet pointer would be desirable! | |
1061 | */ | |
1062 | static OSSL_CALLBACK get_ec_curve_name_cb; | |
1063 | static int get_ec_curve_name_cb(const OSSL_PARAM params[], void *arg) | |
1064 | { | |
1065 | const OSSL_PARAM *p = NULL; | |
1066 | ||
11a1b341 | 1067 | if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_GROUP_NAME)) != NULL) |
c2041da8 RL |
1068 | return OSSL_PARAM_get_utf8_string(p, arg, 0); |
1069 | ||
1070 | /* If there is no curve name, this is not an EC key */ | |
1071 | return 0; | |
1072 | } | |
1073 | ||
1074 | int evp_pkey_get_EC_KEY_curve_nid(const EVP_PKEY *pkey) | |
1075 | { | |
1076 | int ret = NID_undef; | |
1077 | ||
1078 | if (pkey->keymgmt == NULL) { | |
1079 | if (EVP_PKEY_base_id(pkey) == EVP_PKEY_EC) { | |
1080 | EC_KEY *ec = EVP_PKEY_get0_EC_KEY(pkey); | |
1081 | ||
1082 | ret = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec)); | |
1083 | } | |
1084 | } else if (EVP_PKEY_is_a(pkey, "EC") || EVP_PKEY_is_a(pkey, "SM2")) { | |
1085 | char *curve_name = NULL; | |
1086 | ||
655f73ce RL |
1087 | ret = evp_keymgmt_util_export(pkey, |
1088 | OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS, | |
1089 | get_ec_curve_name_cb, &curve_name); | |
c2041da8 RL |
1090 | if (ret) |
1091 | ret = ec_curve_name2nid(curve_name); | |
1092 | OPENSSL_free(curve_name); | |
1093 | } | |
1094 | ||
1095 | return ret; | |
1096 | } | |
1097 | #endif | |
1098 | ||
f1299839 RL |
1099 | static int print_reset_indent(BIO **out, int pop_f_prefix, long saved_indent) |
1100 | { | |
1101 | BIO_set_indent(*out, saved_indent); | |
1102 | if (pop_f_prefix) { | |
1103 | BIO *next = BIO_pop(*out); | |
1104 | ||
1105 | BIO_free(*out); | |
1106 | *out = next; | |
1107 | } | |
1108 | return 1; | |
1109 | } | |
1110 | ||
1111 | static int print_set_indent(BIO **out, int *pop_f_prefix, long *saved_indent, | |
1112 | long indent) | |
1113 | { | |
1114 | *pop_f_prefix = 0; | |
1115 | *saved_indent = 0; | |
1116 | if (indent > 0) { | |
1117 | long i = BIO_get_indent(*out); | |
1118 | ||
1119 | *saved_indent = (i < 0 ? 0 : i); | |
1120 | if (BIO_set_indent(*out, indent) <= 0) { | |
1121 | if ((*out = BIO_push(BIO_new(BIO_f_prefix()), *out)) == NULL) | |
1122 | return 0; | |
1123 | *pop_f_prefix = 1; | |
1124 | } | |
1125 | if (BIO_set_indent(*out, indent) <= 0) { | |
1126 | print_reset_indent(out, *pop_f_prefix, *saved_indent); | |
1127 | return 0; | |
1128 | } | |
1129 | } | |
1130 | return 1; | |
1131 | } | |
1132 | ||
35208f36 | 1133 | static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent, |
0f113f3e MC |
1134 | const char *kstr) |
1135 | { | |
5310a4e6 P |
1136 | return BIO_indent(out, indent, 128) |
1137 | && BIO_printf(out, "%s algorithm \"%s\" unsupported\n", | |
1138 | kstr, OBJ_nid2ln(pkey->type)) > 0; | |
0f113f3e | 1139 | } |
35208f36 | 1140 | |
f1299839 | 1141 | static int print_pkey(const EVP_PKEY *pkey, BIO *out, int indent, |
97bb8dff | 1142 | int selection /* For provided encoding */, |
b4250010 | 1143 | OSSL_LIB_CTX *libctx /* For provided encoding */, |
ece9304c | 1144 | const char *propquery /* For provided encoding */, |
f1299839 RL |
1145 | int (*legacy_print)(BIO *out, const EVP_PKEY *pkey, |
1146 | int indent, ASN1_PCTX *pctx), | |
1147 | ASN1_PCTX *legacy_pctx /* For legacy print */) | |
0f113f3e | 1148 | { |
f1299839 RL |
1149 | int pop_f_prefix; |
1150 | long saved_indent; | |
ece9304c | 1151 | OSSL_ENCODER_CTX *ctx = NULL; |
f1299839 RL |
1152 | int ret = -2; /* default to unsupported */ |
1153 | ||
1154 | if (!print_set_indent(&out, &pop_f_prefix, &saved_indent, indent)) | |
1155 | return 0; | |
54c1711f | 1156 | |
4227e504 | 1157 | ctx = OSSL_ENCODER_CTX_new_by_EVP_PKEY(pkey, selection, "TEXT", NULL, |
97bb8dff RL |
1158 | libctx, propquery); |
1159 | if (OSSL_ENCODER_CTX_get_num_encoders(ctx) != 0) | |
ece9304c RL |
1160 | ret = OSSL_ENCODER_to_bio(ctx, out); |
1161 | OSSL_ENCODER_CTX_free(ctx); | |
54c1711f RL |
1162 | |
1163 | if (ret != -2) | |
f1299839 | 1164 | goto end; |
54c1711f RL |
1165 | |
1166 | /* legacy fallback */ | |
f1299839 RL |
1167 | if (legacy_print != NULL) |
1168 | ret = legacy_print(out, pkey, 0, legacy_pctx); | |
1169 | else | |
1170 | ret = unsup_alg(out, pkey, 0, "Public Key"); | |
0f113f3e | 1171 | |
f1299839 RL |
1172 | end: |
1173 | print_reset_indent(&out, pop_f_prefix, saved_indent); | |
1174 | return ret; | |
1175 | } | |
1176 | ||
1177 | int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, | |
1178 | int indent, ASN1_PCTX *pctx) | |
1179 | { | |
140eee2b | 1180 | return print_pkey(pkey, out, indent, EVP_PKEY_PUBLIC_KEY, NULL, NULL, |
f1299839 RL |
1181 | (pkey->ameth != NULL ? pkey->ameth->pub_print : NULL), |
1182 | pctx); | |
0f113f3e | 1183 | } |
35208f36 DSH |
1184 | |
1185 | int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
1186 | int indent, ASN1_PCTX *pctx) |
1187 | { | |
140eee2b | 1188 | return print_pkey(pkey, out, indent, EVP_PKEY_KEYPAIR, NULL, NULL, |
f1299839 RL |
1189 | (pkey->ameth != NULL ? pkey->ameth->priv_print : NULL), |
1190 | pctx); | |
0f113f3e | 1191 | } |
35208f36 DSH |
1192 | |
1193 | int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
1194 | int indent, ASN1_PCTX *pctx) |
1195 | { | |
140eee2b | 1196 | return print_pkey(pkey, out, indent, EVP_PKEY_KEY_PARAMETERS, NULL, NULL, |
f1299839 RL |
1197 | (pkey->ameth != NULL ? pkey->ameth->param_print : NULL), |
1198 | pctx); | |
0f113f3e | 1199 | } |
03919683 | 1200 | |
ead0d234 RL |
1201 | static int legacy_asn1_ctrl_to_param(EVP_PKEY *pkey, int op, |
1202 | int arg1, void *arg2) | |
1203 | { | |
3c6ed955 | 1204 | if (pkey->keymgmt == NULL) |
ead0d234 RL |
1205 | return 0; |
1206 | switch (op) { | |
1207 | case ASN1_PKEY_CTRL_DEFAULT_MD_NID: | |
1208 | { | |
1209 | char mdname[80] = ""; | |
ead0d234 RL |
1210 | int rv = EVP_PKEY_get_default_digest_name(pkey, mdname, |
1211 | sizeof(mdname)); | |
1212 | ||
90ef39f4 RL |
1213 | if (rv > 0) { |
1214 | int nid; | |
1215 | ||
1216 | nid = OBJ_sn2nid(mdname); | |
1217 | if (nid == NID_undef) | |
1218 | nid = OBJ_ln2nid(mdname); | |
1219 | *(int *)arg2 = nid; | |
1220 | } | |
1221 | return rv; | |
ead0d234 RL |
1222 | } |
1223 | default: | |
1224 | return -2; | |
1225 | } | |
1226 | } | |
1227 | ||
5d6aaf8a | 1228 | static int evp_pkey_asn1_ctrl(EVP_PKEY *pkey, int op, int arg1, void *arg2) |
0f113f3e | 1229 | { |
ead0d234 RL |
1230 | if (pkey->ameth == NULL) |
1231 | return legacy_asn1_ctrl_to_param(pkey, op, arg1, arg2); | |
1232 | if (pkey->ameth->pkey_ctrl == NULL) | |
0f113f3e | 1233 | return -2; |
5d6aaf8a DSH |
1234 | return pkey->ameth->pkey_ctrl(pkey, op, arg1, arg2); |
1235 | } | |
1236 | ||
1237 | int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid) | |
1238 | { | |
1239 | return evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 0, pnid); | |
1240 | } | |
1241 | ||
ead0d234 RL |
1242 | int EVP_PKEY_get_default_digest_name(EVP_PKEY *pkey, |
1243 | char *mdname, size_t mdname_sz) | |
1244 | { | |
3b924da0 RL |
1245 | if (pkey->ameth == NULL) |
1246 | return evp_keymgmt_util_get_deflt_digest_name(pkey->keymgmt, | |
1247 | pkey->keydata, | |
1248 | mdname, mdname_sz); | |
ead0d234 RL |
1249 | |
1250 | { | |
1251 | int nid = NID_undef; | |
1252 | int rv = EVP_PKEY_get_default_digest_nid(pkey, &nid); | |
1253 | const char *name = rv > 0 ? OBJ_nid2sn(nid) : NULL; | |
1254 | ||
1255 | if (rv > 0) | |
1256 | OPENSSL_strlcpy(mdname, name, mdname_sz); | |
1257 | return rv; | |
1258 | } | |
1259 | } | |
1260 | ||
ecbb2fca DW |
1261 | int EVP_PKEY_supports_digest_nid(EVP_PKEY *pkey, int nid) |
1262 | { | |
1263 | int rv, default_nid; | |
1264 | ||
1265 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SUPPORTS_MD_NID, nid, NULL); | |
1266 | if (rv == -2) { | |
1267 | /* | |
1268 | * If there is a mandatory default digest and this isn't it, then | |
1269 | * the answer is 'no'. | |
1270 | */ | |
1271 | rv = EVP_PKEY_get_default_digest_nid(pkey, &default_nid); | |
1272 | if (rv == 2) | |
1273 | return (nid == default_nid); | |
1274 | /* zero is an error from EVP_PKEY_get_default_digest_nid() */ | |
1275 | if (rv == 0) | |
1276 | return -1; | |
1277 | } | |
1278 | return rv; | |
1279 | } | |
1280 | ||
5ac8fb58 MC |
1281 | int EVP_PKEY_set1_encoded_public_key(EVP_PKEY *pkey, const unsigned char *pub, |
1282 | size_t publen) | |
5d6aaf8a | 1283 | { |
6a9bd929 MC |
1284 | if (pkey->ameth == NULL) { |
1285 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
1286 | ||
1287 | if (pkey->keymgmt == NULL || pkey->keydata == NULL) | |
1288 | return 0; | |
1289 | ||
1290 | params[0] = | |
5ac8fb58 MC |
1291 | OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, |
1292 | (unsigned char *)pub, publen); | |
6a9bd929 MC |
1293 | return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params); |
1294 | } | |
1295 | ||
5ac8fb58 | 1296 | if (publen > INT_MAX) |
5d6aaf8a | 1297 | return 0; |
5ac8fb58 MC |
1298 | /* Historically this function was EVP_PKEY_set1_tls_encodedpoint */ |
1299 | if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, publen, | |
1300 | (void *)pub) <= 0) | |
5d6aaf8a DSH |
1301 | return 0; |
1302 | return 1; | |
1303 | } | |
1304 | ||
5ac8fb58 | 1305 | size_t EVP_PKEY_get1_encoded_public_key(EVP_PKEY *pkey, unsigned char **ppub) |
5d6aaf8a DSH |
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] = | |
5ac8fb58 | 1316 | OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, |
6a9bd929 MC |
1317 | NULL, 0); |
1318 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) | |
1319 | return 0; | |
1320 | ||
5ac8fb58 MC |
1321 | *ppub = OPENSSL_malloc(params[0].return_size); |
1322 | if (*ppub == NULL) | |
6a9bd929 MC |
1323 | return 0; |
1324 | ||
1325 | params[0] = | |
5ac8fb58 MC |
1326 | OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, |
1327 | *ppub, params[0].return_size); | |
6a9bd929 MC |
1328 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) |
1329 | return 0; | |
1330 | ||
1331 | return params[0].return_size; | |
1332 | } | |
1333 | ||
1334 | ||
5ac8fb58 | 1335 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppub); |
5d6aaf8a DSH |
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 | 1344 | |
a8154452 RL |
1345 | /* |
1346 | * This reset function must be used very carefully, as it literally throws | |
1347 | * away everything in an EVP_PKEY without freeing them, and may cause leaks | |
8dc34b1f | 1348 | * of memory, what have you. |
a8154452 RL |
1349 | * The only reason we have this is to have the same code for EVP_PKEY_new() |
1350 | * and evp_pkey_downgrade(). | |
1351 | */ | |
4ce1025a RL |
1352 | static int evp_pkey_reset_unlocked(EVP_PKEY *pk) |
1353 | { | |
1354 | if (pk == NULL) | |
1355 | return 0; | |
1356 | ||
8dc34b1f DB |
1357 | if (pk->lock != NULL) { |
1358 | const size_t offset = (unsigned char *)&pk->lock - (unsigned char *)pk; | |
1359 | ||
1360 | memset(pk, 0, offset); | |
1361 | memset((unsigned char *)pk + offset + sizeof(pk->lock), | |
1362 | 0, | |
1363 | sizeof(*pk) - offset - sizeof(pk->lock)); | |
1364 | } | |
1365 | /* EVP_PKEY_new uses zalloc so no need to call memset if pk->lock is NULL */ | |
1366 | ||
4ce1025a RL |
1367 | pk->type = EVP_PKEY_NONE; |
1368 | pk->save_type = EVP_PKEY_NONE; | |
1369 | pk->references = 1; | |
1370 | pk->save_parameters = 1; | |
a8154452 | 1371 | |
4ce1025a RL |
1372 | return 1; |
1373 | } | |
1374 | ||
e683582b SL |
1375 | EVP_PKEY *EVP_PKEY_new(void) |
1376 | { | |
1377 | EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret)); | |
1378 | ||
1379 | if (ret == NULL) { | |
9311d0c4 | 1380 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
e683582b SL |
1381 | return NULL; |
1382 | } | |
4ce1025a RL |
1383 | |
1384 | if (!evp_pkey_reset_unlocked(ret)) | |
1385 | goto err; | |
1386 | ||
8dc34b1f DB |
1387 | ret->lock = CRYPTO_THREAD_lock_new(); |
1388 | if (ret->lock == NULL) { | |
1389 | EVPerr(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
1390 | goto err; | |
1391 | } | |
1392 | ||
f844f9eb | 1393 | #ifndef FIPS_MODULE |
ff1f7cde | 1394 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, ret, &ret->ex_data)) { |
9311d0c4 | 1395 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); |
ff1f7cde | 1396 | goto err; |
e683582b | 1397 | } |
ff1f7cde | 1398 | #endif |
e683582b | 1399 | return ret; |
ff1f7cde AT |
1400 | |
1401 | err: | |
1402 | CRYPTO_THREAD_lock_free(ret->lock); | |
1403 | OPENSSL_free(ret); | |
1404 | return NULL; | |
e683582b SL |
1405 | } |
1406 | ||
8243d8d1 RL |
1407 | /* |
1408 | * Setup a public key management method. | |
1409 | * | |
1410 | * For legacy keys, either |type| or |str| is expected to have the type | |
1411 | * information. In this case, the setup consists of finding an ASN1 method | |
1412 | * and potentially an ENGINE, and setting those fields in |pkey|. | |
1413 | * | |
1414 | * For provider side keys, |keymgmt| is expected to be non-NULL. In this | |
1415 | * case, the setup consists of setting the |keymgmt| field in |pkey|. | |
1416 | * | |
1417 | * If pkey is NULL just return 1 or 0 if the key management method exists. | |
1418 | */ | |
1419 | ||
1420 | static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str, | |
1421 | int len, EVP_KEYMGMT *keymgmt) | |
1422 | { | |
f844f9eb | 1423 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1424 | const EVP_PKEY_ASN1_METHOD *ameth = NULL; |
1425 | ENGINE **eptr = (e == NULL) ? &e : NULL; | |
1426 | #endif | |
1427 | ||
1428 | /* | |
1429 | * The setups can't set both legacy and provider side methods. | |
1430 | * It is forbidden | |
1431 | */ | |
1432 | if (!ossl_assert(type == EVP_PKEY_NONE || keymgmt == NULL) | |
1433 | || !ossl_assert(e == NULL || keymgmt == NULL)) { | |
1434 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1435 | return 0; | |
1436 | } | |
1437 | ||
1438 | if (pkey != NULL) { | |
1439 | int free_it = 0; | |
1440 | ||
f844f9eb | 1441 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1442 | free_it = free_it || pkey->pkey.ptr != NULL; |
1443 | #endif | |
1444 | free_it = free_it || pkey->keydata != NULL; | |
1445 | if (free_it) | |
1446 | evp_pkey_free_it(pkey); | |
f844f9eb | 1447 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1448 | /* |
1449 | * If key type matches and a method exists then this lookup has | |
1450 | * succeeded once so just indicate success. | |
1451 | */ | |
1452 | if (pkey->type != EVP_PKEY_NONE | |
1453 | && type == pkey->save_type | |
1454 | && pkey->ameth != NULL) | |
1455 | return 1; | |
1456 | # ifndef OPENSSL_NO_ENGINE | |
1457 | /* If we have ENGINEs release them */ | |
1458 | ENGINE_finish(pkey->engine); | |
1459 | pkey->engine = NULL; | |
1460 | ENGINE_finish(pkey->pmeth_engine); | |
1461 | pkey->pmeth_engine = NULL; | |
1462 | # endif | |
1463 | #endif | |
1464 | } | |
f844f9eb | 1465 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1466 | if (str != NULL) |
1467 | ameth = EVP_PKEY_asn1_find_str(eptr, str, len); | |
1468 | else if (type != EVP_PKEY_NONE) | |
1469 | ameth = EVP_PKEY_asn1_find(eptr, type); | |
1470 | # ifndef OPENSSL_NO_ENGINE | |
1471 | if (pkey == NULL && eptr != NULL) | |
1472 | ENGINE_finish(e); | |
1473 | # endif | |
1474 | #endif | |
1475 | ||
1476 | ||
1477 | { | |
1478 | int check = 1; | |
1479 | ||
f844f9eb | 1480 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1481 | check = check && ameth == NULL; |
1482 | #endif | |
1483 | check = check && keymgmt == NULL; | |
1484 | if (check) { | |
9311d0c4 | 1485 | ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM); |
8243d8d1 RL |
1486 | return 0; |
1487 | } | |
1488 | } | |
1489 | if (pkey != NULL) { | |
1490 | if (keymgmt != NULL && !EVP_KEYMGMT_up_ref(keymgmt)) { | |
1491 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1492 | return 0; | |
1493 | } | |
1494 | ||
1495 | pkey->keymgmt = keymgmt; | |
1496 | ||
1497 | pkey->save_type = type; | |
1498 | pkey->type = type; | |
1499 | ||
f844f9eb | 1500 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1501 | /* |
1502 | * If the internal "origin" key is provider side, don't save |ameth|. | |
1503 | * The main reason is that |ameth| is one factor to detect that the | |
1504 | * internal "origin" key is a legacy one. | |
1505 | */ | |
1506 | if (keymgmt == NULL) | |
1507 | pkey->ameth = ameth; | |
1508 | pkey->engine = e; | |
1509 | ||
1510 | /* | |
5e5bc836 RL |
1511 | * The EVP_PKEY_ASN1_METHOD |pkey_id| retains its legacy key purpose |
1512 | * for any key type that has a legacy implementation, regardless of | |
1513 | * if the internal key is a legacy or a provider side one. When | |
1514 | * there is no legacy implementation for the key, the type becomes | |
1515 | * EVP_PKEY_KEYMGMT, which indicates that one should be cautious | |
1516 | * with functions that expect legacy internal keys. | |
8243d8d1 | 1517 | */ |
5e5bc836 RL |
1518 | if (ameth != NULL) |
1519 | pkey->type = ameth->pkey_id; | |
1520 | else | |
1521 | pkey->type = EVP_PKEY_KEYMGMT; | |
8243d8d1 RL |
1522 | #endif |
1523 | } | |
1524 | return 1; | |
1525 | } | |
1526 | ||
f844f9eb | 1527 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1528 | static void find_ameth(const char *name, void *data) |
1529 | { | |
1530 | const char **str = data; | |
1531 | ||
1532 | /* | |
1533 | * The error messages from pkey_set_type() are uninteresting here, | |
1534 | * and misleading. | |
1535 | */ | |
1536 | ERR_set_mark(); | |
1537 | ||
1538 | if (pkey_set_type(NULL, NULL, EVP_PKEY_NONE, name, strlen(name), | |
1539 | NULL)) { | |
1540 | if (str[0] == NULL) | |
1541 | str[0] = name; | |
1542 | else if (str[1] == NULL) | |
1543 | str[1] = name; | |
1544 | } | |
1545 | ||
1546 | ERR_pop_to_mark(); | |
1547 | } | |
1548 | #endif | |
1549 | ||
1550 | int EVP_PKEY_set_type_by_keymgmt(EVP_PKEY *pkey, EVP_KEYMGMT *keymgmt) | |
1551 | { | |
f844f9eb | 1552 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1553 | # define EVP_PKEY_TYPE_STR str[0] |
1554 | # define EVP_PKEY_TYPE_STRLEN (str[0] == NULL ? -1 : (int)strlen(str[0])) | |
1555 | /* | |
1556 | * Find at most two strings that have an associated EVP_PKEY_ASN1_METHOD | |
1557 | * Ideally, only one should be found. If two (or more) are found, the | |
1558 | * match is ambiguous. This should never happen, but... | |
1559 | */ | |
1560 | const char *str[2] = { NULL, NULL }; | |
1561 | ||
1562 | EVP_KEYMGMT_names_do_all(keymgmt, find_ameth, &str); | |
1563 | if (str[1] != NULL) { | |
1564 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1565 | return 0; | |
1566 | } | |
1567 | #else | |
1568 | # define EVP_PKEY_TYPE_STR NULL | |
1569 | # define EVP_PKEY_TYPE_STRLEN -1 | |
1570 | #endif | |
1571 | return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, | |
1572 | EVP_PKEY_TYPE_STR, EVP_PKEY_TYPE_STRLEN, | |
1573 | keymgmt); | |
1574 | ||
1575 | #undef EVP_PKEY_TYPE_STR | |
1576 | #undef EVP_PKEY_TYPE_STRLEN | |
1577 | } | |
1578 | ||
e683582b SL |
1579 | int EVP_PKEY_up_ref(EVP_PKEY *pkey) |
1580 | { | |
1581 | int i; | |
1582 | ||
1583 | if (CRYPTO_UP_REF(&pkey->references, &i, pkey->lock) <= 0) | |
1584 | return 0; | |
1585 | ||
1586 | REF_PRINT_COUNT("EVP_PKEY", pkey); | |
1587 | REF_ASSERT_ISNT(i < 2); | |
1588 | return ((i > 1) ? 1 : 0); | |
1589 | } | |
1590 | ||
f844f9eb | 1591 | #ifndef FIPS_MODULE |
62924755 | 1592 | void evp_pkey_free_legacy(EVP_PKEY *x) |
badf51c8 RL |
1593 | { |
1594 | if (x->ameth != NULL) { | |
ff3b59e1 | 1595 | if (x->ameth->pkey_free != NULL) |
badf51c8 RL |
1596 | x->ameth->pkey_free(x); |
1597 | x->pkey.ptr = NULL; | |
badf51c8 RL |
1598 | } |
1599 | # ifndef OPENSSL_NO_ENGINE | |
1600 | ENGINE_finish(x->engine); | |
1601 | x->engine = NULL; | |
1602 | ENGINE_finish(x->pmeth_engine); | |
1603 | x->pmeth_engine = NULL; | |
1604 | # endif | |
badf51c8 | 1605 | } |
f844f9eb | 1606 | #endif /* FIPS_MODULE */ |
badf51c8 | 1607 | |
e683582b SL |
1608 | static void evp_pkey_free_it(EVP_PKEY *x) |
1609 | { | |
1610 | /* internal function; x is never NULL */ | |
1611 | ||
3c6ed955 | 1612 | evp_keymgmt_util_clear_operation_cache(x); |
f844f9eb | 1613 | #ifndef FIPS_MODULE |
badf51c8 RL |
1614 | evp_pkey_free_legacy(x); |
1615 | #endif | |
e683582b | 1616 | |
3c6ed955 RL |
1617 | if (x->keymgmt != NULL) { |
1618 | evp_keymgmt_freedata(x->keymgmt, x->keydata); | |
1619 | EVP_KEYMGMT_free(x->keymgmt); | |
1620 | x->keymgmt = NULL; | |
1621 | x->keydata = NULL; | |
1622 | } | |
5e5bc836 | 1623 | x->type = EVP_PKEY_NONE; |
e683582b SL |
1624 | } |
1625 | ||
1626 | void EVP_PKEY_free(EVP_PKEY *x) | |
1627 | { | |
1628 | int i; | |
1629 | ||
1630 | if (x == NULL) | |
1631 | return; | |
1632 | ||
1633 | CRYPTO_DOWN_REF(&x->references, &i, x->lock); | |
1634 | REF_PRINT_COUNT("EVP_PKEY", x); | |
1635 | if (i > 0) | |
1636 | return; | |
1637 | REF_ASSERT_ISNT(i < 0); | |
1638 | evp_pkey_free_it(x); | |
f844f9eb | 1639 | #ifndef FIPS_MODULE |
ff1f7cde AT |
1640 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, x, &x->ex_data); |
1641 | #endif | |
e683582b | 1642 | CRYPTO_THREAD_lock_free(x->lock); |
f844f9eb | 1643 | #ifndef FIPS_MODULE |
e683582b SL |
1644 | sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free); |
1645 | #endif | |
1646 | OPENSSL_free(x); | |
1647 | } | |
1648 | ||
e683582b SL |
1649 | int EVP_PKEY_size(const EVP_PKEY *pkey) |
1650 | { | |
adc9f731 RL |
1651 | int size = 0; |
1652 | ||
6508e858 | 1653 | if (pkey != NULL) { |
adc9f731 | 1654 | size = pkey->cache.size; |
f844f9eb | 1655 | #ifndef FIPS_MODULE |
adc9f731 RL |
1656 | if (pkey->ameth != NULL && pkey->ameth->pkey_size != NULL) |
1657 | size = pkey->ameth->pkey_size(pkey); | |
1658 | #endif | |
6508e858 | 1659 | } |
adc9f731 | 1660 | return size; |
e683582b | 1661 | } |
f6aa5774 | 1662 | |
b4250010 | 1663 | void *evp_pkey_export_to_provider(EVP_PKEY *pk, OSSL_LIB_CTX *libctx, |
3c6ed955 RL |
1664 | EVP_KEYMGMT **keymgmt, |
1665 | const char *propquery) | |
f6aa5774 RL |
1666 | { |
1667 | EVP_KEYMGMT *allocated_keymgmt = NULL; | |
1668 | EVP_KEYMGMT *tmp_keymgmt = NULL; | |
b305452f | 1669 | void *keydata = NULL; |
adc9f731 | 1670 | int check; |
f6aa5774 RL |
1671 | |
1672 | if (pk == NULL) | |
1673 | return NULL; | |
1674 | ||
adc9f731 RL |
1675 | /* No key data => nothing to export */ |
1676 | check = 1; | |
f844f9eb | 1677 | #ifndef FIPS_MODULE |
adc9f731 RL |
1678 | check = check && pk->pkey.ptr == NULL; |
1679 | #endif | |
1680 | check = check && pk->keydata == NULL; | |
1681 | if (check) | |
1682 | return NULL; | |
1683 | ||
f844f9eb | 1684 | #ifndef FIPS_MODULE |
3f7ce7f1 | 1685 | if (pk->pkey.ptr != NULL) { |
3f7ce7f1 | 1686 | /* |
3c6ed955 RL |
1687 | * If the legacy key doesn't have an dirty counter or export function, |
1688 | * give up | |
3f7ce7f1 | 1689 | */ |
3c6ed955 RL |
1690 | if (pk->ameth->dirty_cnt == NULL || pk->ameth->export_to == NULL) |
1691 | return NULL; | |
3f7ce7f1 RL |
1692 | } |
1693 | #endif | |
1694 | ||
3c6ed955 RL |
1695 | if (keymgmt != NULL) { |
1696 | tmp_keymgmt = *keymgmt; | |
1697 | *keymgmt = NULL; | |
1698 | } | |
1699 | ||
4b9e90f4 RL |
1700 | /* |
1701 | * If no keymgmt was given or found, get a default keymgmt. We do so by | |
1702 | * letting EVP_PKEY_CTX_new_from_pkey() do it for us, then we steal it. | |
1703 | */ | |
f6aa5774 | 1704 | if (tmp_keymgmt == NULL) { |
2ee4a50a | 1705 | EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk, propquery); |
f6aa5774 | 1706 | |
4b9e90f4 RL |
1707 | tmp_keymgmt = ctx->keymgmt; |
1708 | ctx->keymgmt = NULL; | |
f6aa5774 RL |
1709 | EVP_PKEY_CTX_free(ctx); |
1710 | } | |
1711 | ||
3c6ed955 | 1712 | /* If there's still no keymgmt to be had, give up */ |
3f7ce7f1 RL |
1713 | if (tmp_keymgmt == NULL) |
1714 | goto end; | |
f6aa5774 | 1715 | |
f844f9eb | 1716 | #ifndef FIPS_MODULE |
3f7ce7f1 | 1717 | if (pk->pkey.ptr != NULL) { |
3c6ed955 | 1718 | size_t i = 0; |
3f7ce7f1 RL |
1719 | |
1720 | /* | |
3c6ed955 RL |
1721 | * If the legacy "origin" hasn't changed since last time, we try |
1722 | * to find our keymgmt in the operation cache. If it has changed, | |
1723 | * |i| remains zero, and we will clear the cache further down. | |
3f7ce7f1 | 1724 | */ |
3c6ed955 RL |
1725 | if (pk->ameth->dirty_cnt(pk) == pk->dirty_cnt_copy) { |
1726 | i = evp_keymgmt_util_find_operation_cache_index(pk, tmp_keymgmt); | |
1727 | ||
1728 | /* | |
1729 | * If |tmp_keymgmt| is present in the operation cache, it means | |
1730 | * that export doesn't need to be redone. In that case, we take | |
1731 | * token copies of the cached pointers, to have token success | |
1732 | * values to return. | |
1733 | */ | |
1734 | if (i < OSSL_NELEM(pk->operation_cache) | |
1735 | && pk->operation_cache[i].keymgmt != NULL) { | |
1736 | keydata = pk->operation_cache[i].keydata; | |
1737 | goto end; | |
1738 | } | |
3f7ce7f1 RL |
1739 | } |
1740 | ||
1741 | /* | |
3c6ed955 RL |
1742 | * TODO(3.0) Right now, we assume we have ample space. We will have |
1743 | * to think about a cache aging scheme, though, if |i| indexes outside | |
1744 | * the array. | |
3f7ce7f1 | 1745 | */ |
3c6ed955 | 1746 | if (!ossl_assert(i < OSSL_NELEM(pk->operation_cache))) |
3f7ce7f1 RL |
1747 | goto end; |
1748 | ||
1749 | /* Make sure that the keymgmt key type matches the legacy NID */ | |
1750 | if (!ossl_assert(EVP_KEYMGMT_is_a(tmp_keymgmt, OBJ_nid2sn(pk->type)))) | |
1751 | goto end; | |
1752 | ||
1753 | if ((keydata = evp_keymgmt_newdata(tmp_keymgmt)) == NULL) | |
1754 | goto end; | |
1755 | ||
76e23fc5 | 1756 | if (!pk->ameth->export_to(pk, keydata, tmp_keymgmt, libctx, propquery)) { |
3f7ce7f1 RL |
1757 | evp_keymgmt_freedata(tmp_keymgmt, keydata); |
1758 | keydata = NULL; | |
1759 | goto end; | |
1760 | } | |
1761 | ||
3c6ed955 RL |
1762 | /* |
1763 | * If the dirty counter changed since last time, then clear the | |
1764 | * operation cache. In that case, we know that |i| is zero. Just | |
1765 | * in case this is a re-export, we increment then decrement the | |
1766 | * keymgmt reference counter. | |
1767 | */ | |
1768 | if (!EVP_KEYMGMT_up_ref(tmp_keymgmt)) { /* refcnt++ */ | |
1769 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1770 | keydata = NULL; | |
1771 | goto end; | |
1772 | } | |
1773 | if (pk->ameth->dirty_cnt(pk) != pk->dirty_cnt_copy) | |
1774 | evp_keymgmt_util_clear_operation_cache(pk); | |
1775 | EVP_KEYMGMT_free(tmp_keymgmt); /* refcnt-- */ | |
1776 | ||
1777 | /* Add the new export to the operation cache */ | |
1778 | if (!evp_keymgmt_util_cache_keydata(pk, i, tmp_keymgmt, keydata)) { | |
1779 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1780 | keydata = NULL; | |
1781 | goto end; | |
1782 | } | |
3f7ce7f1 RL |
1783 | |
1784 | /* Synchronize the dirty count */ | |
1785 | pk->dirty_cnt_copy = pk->ameth->dirty_cnt(pk); | |
1786 | goto end; | |
1787 | } | |
f844f9eb | 1788 | #endif /* FIPS_MODULE */ |
3f7ce7f1 RL |
1789 | |
1790 | keydata = evp_keymgmt_util_export_to_provider(pk, tmp_keymgmt); | |
1791 | ||
1792 | end: | |
f6aa5774 RL |
1793 | /* |
1794 | * If nothing was exported, |tmp_keymgmt| might point at a freed | |
1795 | * EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for | |
1796 | * the caller either way in that case. | |
1797 | */ | |
b305452f | 1798 | if (keydata == NULL) |
f6aa5774 RL |
1799 | tmp_keymgmt = NULL; |
1800 | ||
1801 | if (keymgmt != NULL) | |
1802 | *keymgmt = tmp_keymgmt; | |
1803 | ||
1804 | EVP_KEYMGMT_free(allocated_keymgmt); | |
b305452f | 1805 | return keydata; |
f6aa5774 | 1806 | } |
badf51c8 | 1807 | |
f844f9eb | 1808 | #ifndef FIPS_MODULE |
4ce1025a | 1809 | int evp_pkey_copy_downgraded(EVP_PKEY **dest, const EVP_PKEY *src) |
badf51c8 | 1810 | { |
4ce1025a RL |
1811 | if (!ossl_assert(dest != NULL)) |
1812 | return 0; | |
badf51c8 | 1813 | |
4ce1025a RL |
1814 | if (evp_pkey_is_assigned(src) && evp_pkey_is_provided(src)) { |
1815 | EVP_KEYMGMT *keymgmt = src->keymgmt; | |
1816 | void *keydata = src->keydata; | |
1817 | int type = src->type; | |
1818 | const char *keytype = NULL; | |
acb90ba8 | 1819 | |
4ce1025a RL |
1820 | keytype = evp_first_name(EVP_KEYMGMT_provider(keymgmt), |
1821 | keymgmt->name_id); | |
badf51c8 | 1822 | |
4ce1025a RL |
1823 | /* |
1824 | * If the type is EVP_PKEY_NONE, then we have a problem somewhere | |
1825 | * else in our code. If it's not one of the well known EVP_PKEY_xxx | |
1826 | * values, it should at least be EVP_PKEY_KEYMGMT at this point. | |
1827 | * TODO(3.0) remove this check when we're confident that the rest | |
1828 | * of the code treats this correctly. | |
1829 | */ | |
1830 | if (!ossl_assert(type != EVP_PKEY_NONE)) { | |
1831 | ERR_raise_data(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR, | |
1832 | "keymgmt key type = %s but legacy type = EVP_PKEY_NONE", | |
1833 | keytype); | |
1834 | return 0; | |
1835 | } | |
badf51c8 | 1836 | |
4ce1025a RL |
1837 | /* Prefer the legacy key type name for error reporting */ |
1838 | if (type != EVP_PKEY_KEYMGMT) | |
1839 | keytype = OBJ_nid2sn(type); | |
5e5bc836 | 1840 | |
4ce1025a RL |
1841 | /* Make sure we have a clean slate to copy into */ |
1842 | if (*dest == NULL) | |
1843 | *dest = EVP_PKEY_new(); | |
1844 | else | |
1845 | evp_pkey_free_it(*dest); | |
badf51c8 | 1846 | |
4ce1025a RL |
1847 | if (EVP_PKEY_set_type(*dest, type)) { |
1848 | /* If the key is typed but empty, we're done */ | |
1849 | if (keydata == NULL) | |
1850 | return 1; | |
629c72db | 1851 | |
4ce1025a RL |
1852 | if ((*dest)->ameth->import_from == NULL) { |
1853 | ERR_raise_data(ERR_LIB_EVP, EVP_R_NO_IMPORT_FUNCTION, | |
1854 | "key type = %s", keytype); | |
1855 | } else { | |
629c72db | 1856 | /* |
4ce1025a RL |
1857 | * We perform the export in the same libctx as the keymgmt |
1858 | * that we are using. | |
629c72db | 1859 | */ |
b4250010 | 1860 | OSSL_LIB_CTX *libctx = |
a829b735 | 1861 | ossl_provider_libctx(keymgmt->prov); |
4ce1025a RL |
1862 | EVP_PKEY_CTX *pctx = |
1863 | EVP_PKEY_CTX_new_from_pkey(libctx, *dest, NULL); | |
629c72db | 1864 | |
4ce1025a RL |
1865 | if (pctx == NULL) |
1866 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
629c72db | 1867 | |
4ce1025a RL |
1868 | if (pctx != NULL |
1869 | && evp_keymgmt_export(keymgmt, keydata, | |
1870 | OSSL_KEYMGMT_SELECT_ALL, | |
1871 | (*dest)->ameth->import_from, | |
1872 | pctx)) { | |
1873 | /* Synchronize the dirty count */ | |
1874 | (*dest)->dirty_cnt_copy = (*dest)->ameth->dirty_cnt(*dest); | |
1875 | ||
1876 | EVP_PKEY_CTX_free(pctx); | |
1877 | return 1; | |
1878 | } | |
1879 | EVP_PKEY_CTX_free(pctx); | |
629c72db | 1880 | } |
badf51c8 | 1881 | |
4ce1025a RL |
1882 | ERR_raise_data(ERR_LIB_EVP, EVP_R_KEYMGMT_EXPORT_FAILURE, |
1883 | "key type = %s", keytype); | |
1884 | } | |
badf51c8 RL |
1885 | } |
1886 | ||
4ce1025a RL |
1887 | return 0; |
1888 | } | |
1889 | ||
1890 | int evp_pkey_downgrade(EVP_PKEY *pk) | |
1891 | { | |
a8154452 | 1892 | EVP_PKEY tmp_copy; /* Stack allocated! */ |
a8154452 RL |
1893 | int rv = 0; |
1894 | ||
1895 | if (!ossl_assert(pk != NULL)) | |
1896 | return 0; | |
1897 | ||
1898 | /* | |
1899 | * Throughout this whole function, we must ensure that we lock / unlock | |
1900 | * the exact same lock. Note that we do pass it around a bit. | |
1901 | */ | |
1902 | if (!CRYPTO_THREAD_write_lock(pk->lock)) | |
1903 | return 0; | |
4ce1025a RL |
1904 | |
1905 | /* If this isn't an assigned provider side key, we're done */ | |
a8154452 RL |
1906 | if (!evp_pkey_is_assigned(pk) || !evp_pkey_is_provided(pk)) { |
1907 | rv = 1; | |
1908 | goto end; | |
1909 | } | |
4ce1025a | 1910 | |
badf51c8 | 1911 | /* |
4ce1025a RL |
1912 | * To be able to downgrade, we steal the contents of |pk|, then reset |
1913 | * it, and finally try to make it a downgraded copy. If any of that | |
1914 | * fails, we restore the copied contents into |pk|. | |
badf51c8 | 1915 | */ |
a8154452 | 1916 | tmp_copy = *pk; /* |tmp_copy| now owns THE lock */ |
4ce1025a RL |
1917 | |
1918 | if (evp_pkey_reset_unlocked(pk) | |
1919 | && evp_pkey_copy_downgraded(&pk, &tmp_copy)) { | |
a8154452 | 1920 | |
4ce1025a RL |
1921 | /* Restore the common attributes, then empty |tmp_copy| */ |
1922 | pk->references = tmp_copy.references; | |
4ce1025a RL |
1923 | pk->attributes = tmp_copy.attributes; |
1924 | pk->save_parameters = tmp_copy.save_parameters; | |
1925 | pk->ex_data = tmp_copy.ex_data; | |
1926 | ||
1927 | /* Ensure that stuff we've copied won't be freed */ | |
1928 | tmp_copy.lock = NULL; | |
1929 | tmp_copy.attributes = NULL; | |
1930 | memset(&tmp_copy.ex_data, 0, sizeof(tmp_copy.ex_data)); | |
1931 | ||
1932 | /* | |
1933 | * Save the provider side data in the operation cache, so they'll | |
1934 | * find it again. |pk| is new, so it's safe to assume slot zero | |
1935 | * is free. | |
1936 | * Note that evp_keymgmt_util_cache_keydata() increments keymgmt's | |
1937 | * reference count, so we need to decrement it, or there will be a | |
1938 | * leak. | |
1939 | */ | |
1940 | evp_keymgmt_util_cache_keydata(pk, 0, tmp_copy.keymgmt, | |
1941 | tmp_copy.keydata); | |
1942 | EVP_KEYMGMT_free(tmp_copy.keymgmt); | |
1943 | ||
1944 | /* | |
1945 | * Clear keymgmt and keydata from |tmp_copy|, or they'll get | |
1946 | * inadvertently freed. | |
1947 | */ | |
1948 | tmp_copy.keymgmt = NULL; | |
1949 | tmp_copy.keydata = NULL; | |
1950 | ||
1951 | evp_pkey_free_it(&tmp_copy); | |
a8154452 RL |
1952 | rv = 1; |
1953 | } else { | |
a8154452 | 1954 | /* Restore the original key */ |
8dc34b1f | 1955 | *pk = tmp_copy; |
acb90ba8 | 1956 | } |
4ce1025a | 1957 | |
a8154452 RL |
1958 | end: |
1959 | if (!CRYPTO_THREAD_unlock(pk->lock)) | |
1960 | return 0; | |
1961 | return rv; | |
badf51c8 | 1962 | } |
f844f9eb | 1963 | #endif /* FIPS_MODULE */ |
96ebe52e SL |
1964 | |
1965 | const OSSL_PARAM *EVP_PKEY_gettable_params(EVP_PKEY *pkey) | |
1966 | { | |
1967 | if (pkey == NULL | |
1968 | || pkey->keymgmt == NULL | |
1969 | || pkey->keydata == NULL) | |
1970 | return 0; | |
e3efe7a5 | 1971 | return EVP_KEYMGMT_gettable_params(pkey->keymgmt); |
96ebe52e SL |
1972 | } |
1973 | ||
96ebe52e SL |
1974 | int EVP_PKEY_get_bn_param(EVP_PKEY *pkey, const char *key_name, BIGNUM **bn) |
1975 | { | |
1976 | int ret = 0; | |
1977 | OSSL_PARAM params[2]; | |
1978 | unsigned char buffer[2048]; | |
96ebe52e SL |
1979 | unsigned char *buf = NULL; |
1980 | size_t buf_sz = 0; | |
1981 | ||
1982 | if (pkey == NULL | |
1983 | || pkey->keymgmt == NULL | |
1984 | || pkey->keydata == NULL | |
1985 | || key_name == NULL | |
1986 | || bn == NULL) | |
1987 | return 0; | |
1988 | ||
1989 | memset(buffer, 0, sizeof(buffer)); | |
1990 | params[0] = OSSL_PARAM_construct_BN(key_name, buffer, sizeof(buffer)); | |
96ebe52e SL |
1991 | params[1] = OSSL_PARAM_construct_end(); |
1992 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) { | |
99ea4f02 | 1993 | if (!OSSL_PARAM_modified(params) || params[0].return_size == 0) |
96ebe52e SL |
1994 | return 0; |
1995 | buf_sz = params[0].return_size; | |
1996 | /* | |
1997 | * If it failed because the buffer was too small then allocate the | |
1998 | * required buffer size and retry. | |
1999 | */ | |
2000 | buf = OPENSSL_zalloc(buf_sz); | |
2001 | if (buf == NULL) | |
2002 | return 0; | |
2003 | params[0].data = buf; | |
2004 | params[0].data_size = buf_sz; | |
2005 | ||
2006 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) | |
2007 | goto err; | |
2008 | } | |
2009 | /* Fail if the param was not found */ | |
99ea4f02 | 2010 | if (!OSSL_PARAM_modified(params)) |
96ebe52e SL |
2011 | goto err; |
2012 | ret = OSSL_PARAM_get_BN(params, bn); | |
2013 | err: | |
2014 | OPENSSL_free(buf); | |
2015 | return ret; | |
2016 | } | |
2017 | ||
2018 | int EVP_PKEY_get_octet_string_param(EVP_PKEY *pkey, const char *key_name, | |
2019 | unsigned char *buf, size_t max_buf_sz, | |
2020 | size_t *out_sz) | |
2021 | { | |
2022 | OSSL_PARAM params[2]; | |
96ebe52e SL |
2023 | |
2024 | if (pkey == NULL | |
2025 | || pkey->keymgmt == NULL | |
2026 | || pkey->keydata == NULL | |
2027 | || key_name == NULL) | |
2028 | return 0; | |
2029 | ||
2030 | params[0] = OSSL_PARAM_construct_octet_string(key_name, buf, max_buf_sz); | |
96ebe52e | 2031 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
2032 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
2033 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
2034 | return 0; |
2035 | if (out_sz != NULL) | |
2036 | *out_sz = params[0].return_size; | |
2037 | return 1; | |
2038 | } | |
2039 | ||
2040 | int EVP_PKEY_get_utf8_string_param(EVP_PKEY *pkey, const char *key_name, | |
2041 | char *str, size_t max_buf_sz, | |
2042 | size_t *out_sz) | |
2043 | { | |
2044 | OSSL_PARAM params[2]; | |
96ebe52e SL |
2045 | |
2046 | if (pkey == NULL | |
2047 | || pkey->keymgmt == NULL | |
2048 | || pkey->keydata == NULL | |
2049 | || key_name == NULL) | |
2050 | return 0; | |
2051 | ||
2052 | params[0] = OSSL_PARAM_construct_utf8_string(key_name, str, max_buf_sz); | |
96ebe52e | 2053 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
2054 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
2055 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
2056 | return 0; |
2057 | if (out_sz != NULL) | |
2058 | *out_sz = params[0].return_size; | |
2059 | return 1; | |
2060 | } | |
2061 | ||
2062 | int EVP_PKEY_get_int_param(EVP_PKEY *pkey, const char *key_name, int *out) | |
2063 | { | |
2064 | OSSL_PARAM params[2]; | |
96ebe52e SL |
2065 | |
2066 | if (pkey == NULL | |
2067 | || pkey->keymgmt == NULL | |
2068 | || pkey->keydata == NULL | |
2069 | || key_name == NULL) | |
2070 | return 0; | |
2071 | ||
2072 | params[0] = OSSL_PARAM_construct_int(key_name, out); | |
96ebe52e | 2073 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
2074 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
2075 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
2076 | return 0; |
2077 | return 1; | |
2078 | } | |
2079 | ||
2080 | int EVP_PKEY_get_size_t_param(EVP_PKEY *pkey, const char *key_name, size_t *out) | |
2081 | { | |
2082 | OSSL_PARAM params[2]; | |
96ebe52e SL |
2083 | |
2084 | if (pkey == NULL | |
2085 | || pkey->keymgmt == NULL | |
2086 | || pkey->keydata == NULL | |
2087 | || key_name == NULL) | |
2088 | return 0; | |
2089 | ||
2090 | params[0] = OSSL_PARAM_construct_size_t(key_name, out); | |
96ebe52e | 2091 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
2092 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
2093 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
2094 | return 0; |
2095 | return 1; | |
2096 | } |