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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> |
54c1711f | 32 | #include <openssl/serializer.h> |
e74bd290 | 33 | #include <openssl/core_names.h> |
01b8b3c7 | 34 | |
25f2138b DMSP |
35 | #include "crypto/asn1.h" |
36 | #include "crypto/evp.h" | |
c2041da8 | 37 | #include "internal/evp.h" |
e74bd290 | 38 | #include "internal/provider.h" |
f6aa5774 | 39 | #include "evp_local.h" |
852c2ed2 | 40 | DEFINE_STACK_OF(X509_ATTRIBUTE) |
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 | */ |
acb90ba8 RL |
122 | if (to->type != EVP_PKEY_NONE && from->keymgmt != NULL) |
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 | */ | |
138 | if (to->type == EVP_PKEY_NONE && to->keymgmt == NULL) { | |
139 | if (from->type != EVP_PKEY_NONE) { | |
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 | } | |
146 | } else if (to->type != EVP_PKEY_NONE) { | |
147 | if (to->type != from->type) { | |
ff3b59e1 RL |
148 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_DIFFERENT_KEY_TYPES); |
149 | goto err; | |
150 | } | |
0f113f3e MC |
151 | } |
152 | ||
153 | if (EVP_PKEY_missing_parameters(from)) { | |
154 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_MISSING_PARAMETERS); | |
155 | goto err; | |
156 | } | |
f72f00d4 DSH |
157 | |
158 | if (!EVP_PKEY_missing_parameters(to)) { | |
159 | if (EVP_PKEY_cmp_parameters(to, from) == 1) | |
160 | return 1; | |
161 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_DIFFERENT_PARAMETERS); | |
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 */ | |
222 | if (!ossl_assert(a->keymgmt != NULL || b->keymgmt != NULL)) | |
223 | return -2; | |
224 | ||
225 | /* For purely provided keys, we just call the keymgmt utility */ | |
226 | if (a->keymgmt != NULL && b->keymgmt != NULL) | |
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 | */ | |
233 | if ((a->type != EVP_PKEY_NONE | |
dc8908bf P |
234 | && (b->keymgmt == NULL |
235 | || !EVP_KEYMGMT_is_a(b->keymgmt, OBJ_nid2sn(a->type)))) | |
acb90ba8 | 236 | || (b->type != EVP_PKEY_NONE |
dc8908bf P |
237 | && (a->keymgmt == NULL |
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 | ||
272 | return evp_keymgmt_match(keymgmt1, keydata1, keydata2, selection); | |
273 | } | |
274 | ||
af0f0f3e | 275 | int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) |
0f113f3e | 276 | { |
1e9101c4 RL |
277 | /* |
278 | * TODO: clean up legacy stuff from this function when legacy support | |
279 | * is gone. | |
280 | */ | |
281 | ||
282 | if (a->keymgmt != NULL || b->keymgmt != NULL) | |
8158cf20 | 283 | return evp_pkey_cmp_any(a, b, SELECT_PARAMETERS); |
1e9101c4 RL |
284 | |
285 | /* All legacy keys */ | |
0f113f3e MC |
286 | if (a->type != b->type) |
287 | return -1; | |
1e9101c4 | 288 | if (a->ameth != NULL && a->ameth->param_cmp != NULL) |
0f113f3e MC |
289 | return a->ameth->param_cmp(a, b); |
290 | return -2; | |
291 | } | |
58964a49 | 292 | |
af0f0f3e | 293 | int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b) |
0f113f3e | 294 | { |
1e9101c4 RL |
295 | /* |
296 | * TODO: clean up legacy stuff from this function when legacy support | |
297 | * is gone. | |
298 | */ | |
299 | ||
300 | if (a->keymgmt != NULL || b->keymgmt != NULL) | |
8158cf20 RL |
301 | return evp_pkey_cmp_any(a, b, (SELECT_PARAMETERS |
302 | | OSSL_KEYMGMT_SELECT_PUBLIC_KEY)); | |
1e9101c4 RL |
303 | |
304 | /* All legacy keys */ | |
0f113f3e MC |
305 | if (a->type != b->type) |
306 | return -1; | |
307 | ||
1e9101c4 | 308 | if (a->ameth != NULL) { |
0f113f3e MC |
309 | int ret; |
310 | /* Compare parameters if the algorithm has them */ | |
1e9101c4 | 311 | if (a->ameth->param_cmp != NULL) { |
0f113f3e MC |
312 | ret = a->ameth->param_cmp(a, b); |
313 | if (ret <= 0) | |
314 | return ret; | |
315 | } | |
316 | ||
1e9101c4 | 317 | if (a->ameth->pub_cmp != NULL) |
0f113f3e MC |
318 | return a->ameth->pub_cmp(a, b); |
319 | } | |
320 | ||
321 | return -2; | |
322 | } | |
e6526fbf | 323 | |
1c4f340d MC |
324 | |
325 | static EVP_PKEY *new_raw_key_int(OPENSSL_CTX *libctx, | |
326 | const char *strtype, | |
327 | const char *propq, | |
328 | int nidtype, | |
329 | ENGINE *e, | |
330 | const unsigned char *key, | |
331 | size_t len, | |
332 | int key_is_priv) | |
a08802ce | 333 | { |
1c4f340d MC |
334 | EVP_PKEY *pkey = NULL; |
335 | EVP_PKEY_CTX *ctx = NULL; | |
336 | const EVP_PKEY_ASN1_METHOD *ameth = NULL; | |
337 | int result = 0; | |
338 | ||
339 | # ifndef OPENSSL_NO_ENGINE | |
340 | /* Check if there is an Engine for this type */ | |
341 | if (e == NULL) { | |
342 | ENGINE *tmpe = NULL; | |
343 | ||
344 | if (strtype != NULL) | |
345 | ameth = EVP_PKEY_asn1_find_str(&tmpe, strtype, -1); | |
346 | else if (nidtype != EVP_PKEY_NONE) | |
347 | ameth = EVP_PKEY_asn1_find(&tmpe, nidtype); | |
348 | ||
349 | /* If tmpe is NULL then no engine is claiming to support this type */ | |
350 | if (tmpe == NULL) | |
351 | ameth = NULL; | |
352 | ||
353 | ENGINE_finish(tmpe); | |
354 | } | |
355 | # endif | |
a08802ce | 356 | |
1c4f340d MC |
357 | if (e == NULL && ameth == NULL) { |
358 | /* | |
359 | * No engine is claiming to support this type, so lets see if we have | |
360 | * a provider. | |
361 | */ | |
362 | ctx = EVP_PKEY_CTX_new_from_name(libctx, | |
363 | strtype != NULL ? strtype | |
364 | : OBJ_nid2sn(nidtype), | |
365 | propq); | |
366 | if (ctx == NULL) { | |
367 | EVPerr(0, ERR_R_MALLOC_FAILURE); | |
368 | goto err; | |
369 | } | |
370 | /* May fail if no provider available */ | |
371 | ERR_set_mark(); | |
372 | if (EVP_PKEY_key_fromdata_init(ctx) == 1) { | |
373 | OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
374 | ||
375 | ERR_clear_last_mark(); | |
376 | params[0] = OSSL_PARAM_construct_octet_string( | |
377 | key_is_priv ? OSSL_PKEY_PARAM_PRIV_KEY | |
378 | : OSSL_PKEY_PARAM_PUB_KEY, | |
379 | (void *)key, len); | |
380 | ||
381 | if (EVP_PKEY_fromdata(ctx, &pkey, params) != 1) { | |
382 | EVPerr(0, EVP_R_KEY_SETUP_FAILED); | |
383 | goto err; | |
384 | } | |
385 | ||
386 | EVP_PKEY_CTX_free(ctx); | |
387 | ||
388 | return pkey; | |
389 | } | |
390 | ERR_pop_to_mark(); | |
391 | /* else not supported so fallback to legacy */ | |
a08802ce MC |
392 | } |
393 | ||
1c4f340d MC |
394 | /* Legacy code path */ |
395 | ||
396 | pkey = EVP_PKEY_new(); | |
397 | if (pkey == NULL) { | |
398 | EVPerr(0, ERR_R_MALLOC_FAILURE); | |
a08802ce MC |
399 | goto err; |
400 | } | |
401 | ||
1c4f340d MC |
402 | if (!pkey_set_type(pkey, e, nidtype, strtype, -1, NULL)) { |
403 | /* EVPerr already called */ | |
a08802ce MC |
404 | goto err; |
405 | } | |
406 | ||
1c4f340d MC |
407 | if (!ossl_assert(pkey->ameth != NULL)) |
408 | goto err; | |
a08802ce | 409 | |
1c4f340d MC |
410 | if (key_is_priv) { |
411 | if (pkey->ameth->set_priv_key == NULL) { | |
412 | EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
413 | goto err; | |
414 | } | |
a08802ce | 415 | |
1c4f340d MC |
416 | if (!pkey->ameth->set_priv_key(pkey, key, len)) { |
417 | EVPerr(0, EVP_R_KEY_SETUP_FAILED); | |
418 | goto err; | |
419 | } | |
420 | } else { | |
421 | if (pkey->ameth->set_pub_key == NULL) { | |
422 | EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
423 | goto err; | |
424 | } | |
a08802ce | 425 | |
1c4f340d MC |
426 | if (!pkey->ameth->set_pub_key(pkey, key, len)) { |
427 | EVPerr(0, EVP_R_KEY_SETUP_FAILED); | |
428 | goto err; | |
429 | } | |
a08802ce MC |
430 | } |
431 | ||
1c4f340d MC |
432 | result = 1; |
433 | err: | |
434 | if (!result) { | |
435 | EVP_PKEY_free(pkey); | |
436 | pkey = NULL; | |
a08802ce | 437 | } |
1c4f340d MC |
438 | EVP_PKEY_CTX_free(ctx); |
439 | return pkey; | |
440 | } | |
a08802ce | 441 | |
1c4f340d MC |
442 | EVP_PKEY *EVP_PKEY_new_raw_private_key_with_libctx(OPENSSL_CTX *libctx, |
443 | const char *keytype, | |
444 | const char *propq, | |
445 | const unsigned char *priv, | |
446 | size_t len) | |
447 | { | |
448 | return new_raw_key_int(libctx, keytype, propq, EVP_PKEY_NONE, NULL, priv, | |
449 | len, 1); | |
450 | } | |
a08802ce | 451 | |
1c4f340d MC |
452 | EVP_PKEY *EVP_PKEY_new_raw_private_key(int type, ENGINE *e, |
453 | const unsigned char *priv, | |
454 | size_t len) | |
455 | { | |
456 | return new_raw_key_int(NULL, NULL, NULL, type, e, priv, len, 1); | |
457 | } | |
a08802ce | 458 | |
1c4f340d MC |
459 | EVP_PKEY *EVP_PKEY_new_raw_public_key_with_libctx(OPENSSL_CTX *libctx, |
460 | const char *keytype, | |
461 | const char *propq, | |
462 | const unsigned char *pub, | |
463 | size_t len) | |
464 | { | |
465 | return new_raw_key_int(libctx, keytype, propq, EVP_PKEY_NONE, NULL, pub, | |
466 | len, 0); | |
467 | } | |
468 | ||
469 | EVP_PKEY *EVP_PKEY_new_raw_public_key(int type, ENGINE *e, | |
470 | const unsigned char *pub, | |
471 | size_t len) | |
472 | { | |
473 | return new_raw_key_int(NULL, NULL, NULL, type, e, pub, len, 0); | |
a08802ce MC |
474 | } |
475 | ||
0d124b0a MC |
476 | int EVP_PKEY_get_raw_private_key(const EVP_PKEY *pkey, unsigned char *priv, |
477 | size_t *len) | |
478 | { | |
acb90ba8 | 479 | /* TODO(3.0) Do we need to do anything about provider side keys? */ |
0d124b0a MC |
480 | if (pkey->ameth->get_priv_key == NULL) { |
481 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PRIVATE_KEY, | |
482 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
483 | return 0; | |
484 | } | |
485 | ||
486 | if (!pkey->ameth->get_priv_key(pkey, priv, len)) { | |
487 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PRIVATE_KEY, EVP_R_GET_RAW_KEY_FAILED); | |
488 | return 0; | |
489 | } | |
490 | ||
491 | return 1; | |
492 | } | |
493 | ||
494 | int EVP_PKEY_get_raw_public_key(const EVP_PKEY *pkey, unsigned char *pub, | |
495 | size_t *len) | |
496 | { | |
acb90ba8 | 497 | /* TODO(3.0) Do we need to do anything about provider side keys? */ |
0d124b0a MC |
498 | if (pkey->ameth->get_pub_key == NULL) { |
499 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY, | |
500 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
501 | return 0; | |
502 | } | |
503 | ||
504 | if (!pkey->ameth->get_pub_key(pkey, pub, len)) { | |
505 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY, EVP_R_GET_RAW_KEY_FAILED); | |
506 | return 0; | |
507 | } | |
508 | ||
509 | return 1; | |
510 | } | |
511 | ||
b3831fbb MC |
512 | EVP_PKEY *EVP_PKEY_new_CMAC_key(ENGINE *e, const unsigned char *priv, |
513 | size_t len, const EVP_CIPHER *cipher) | |
514 | { | |
e683582b SL |
515 | # ifndef OPENSSL_NO_CMAC |
516 | # ifndef OPENSSL_NO_ENGINE | |
9a7846df | 517 | const char *engine_id = e != NULL ? ENGINE_get_id(e) : NULL; |
e683582b | 518 | # endif |
e74bd290 RL |
519 | const char *cipher_name = EVP_CIPHER_name(cipher); |
520 | const OSSL_PROVIDER *prov = EVP_CIPHER_provider(cipher); | |
521 | OPENSSL_CTX *libctx = | |
522 | prov == NULL ? NULL : ossl_provider_library_context(prov); | |
b3831fbb | 523 | EVP_PKEY *ret = EVP_PKEY_new(); |
81ff9eeb | 524 | EVP_MAC *cmac = EVP_MAC_fetch(libctx, OSSL_MAC_NAME_CMAC, NULL); |
e74bd290 RL |
525 | EVP_MAC_CTX *cmctx = cmac != NULL ? EVP_MAC_CTX_new(cmac) : NULL; |
526 | OSSL_PARAM params[4]; | |
527 | size_t paramsn = 0; | |
b3831fbb MC |
528 | |
529 | if (ret == NULL | |
8243d8d1 RL |
530 | || cmctx == NULL |
531 | || !pkey_set_type(ret, e, EVP_PKEY_CMAC, NULL, -1, NULL)) { | |
b3831fbb MC |
532 | /* EVPerr already called */ |
533 | goto err; | |
534 | } | |
535 | ||
e683582b | 536 | # ifndef OPENSSL_NO_ENGINE |
9a7846df | 537 | if (engine_id != NULL) |
e74bd290 | 538 | params[paramsn++] = |
69db3044 | 539 | OSSL_PARAM_construct_utf8_string("engine", (char *)engine_id, 0); |
e683582b | 540 | # endif |
3be06e0d | 541 | |
e74bd290 | 542 | params[paramsn++] = |
703170d4 | 543 | OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_CIPHER, |
7f588d20 | 544 | (char *)cipher_name, 0); |
e74bd290 RL |
545 | params[paramsn++] = |
546 | OSSL_PARAM_construct_octet_string(OSSL_MAC_PARAM_KEY, | |
547 | (char *)priv, len); | |
548 | params[paramsn] = OSSL_PARAM_construct_end(); | |
549 | ||
550 | if (!EVP_MAC_CTX_set_params(cmctx, params)) { | |
b3831fbb MC |
551 | EVPerr(EVP_F_EVP_PKEY_NEW_CMAC_KEY, EVP_R_KEY_SETUP_FAILED); |
552 | goto err; | |
553 | } | |
554 | ||
555 | ret->pkey.ptr = cmctx; | |
556 | return ret; | |
557 | ||
558 | err: | |
559 | EVP_PKEY_free(ret); | |
b8d77c9b | 560 | EVP_MAC_CTX_free(cmctx); |
e74bd290 | 561 | EVP_MAC_free(cmac); |
b3831fbb | 562 | return NULL; |
e683582b | 563 | # else |
df6d51e2 MC |
564 | EVPerr(EVP_F_EVP_PKEY_NEW_CMAC_KEY, |
565 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
566 | return NULL; | |
e683582b | 567 | # endif |
b3831fbb | 568 | } |
a08802ce | 569 | |
01b8b3c7 | 570 | int EVP_PKEY_set_type(EVP_PKEY *pkey, int type) |
0f113f3e | 571 | { |
8243d8d1 | 572 | return pkey_set_type(pkey, NULL, type, NULL, -1, NULL); |
0f113f3e | 573 | } |
01b8b3c7 DSH |
574 | |
575 | int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len) | |
0f113f3e | 576 | { |
8243d8d1 | 577 | return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, str, len, NULL); |
0f113f3e | 578 | } |
2f2e6b62 JL |
579 | |
580 | int EVP_PKEY_set_alias_type(EVP_PKEY *pkey, int type) | |
581 | { | |
582 | if (pkey->type == type) { | |
583 | return 1; /* it already is that type */ | |
584 | } | |
585 | ||
586 | /* | |
587 | * The application is requesting to alias this to a different pkey type, | |
588 | * but not one that resolves to the base type. | |
589 | */ | |
590 | if (EVP_PKEY_type(type) != EVP_PKEY_base_id(pkey)) { | |
591 | EVPerr(EVP_F_EVP_PKEY_SET_ALIAS_TYPE, EVP_R_UNSUPPORTED_ALGORITHM); | |
592 | return 0; | |
593 | } | |
594 | ||
595 | pkey->type = type; | |
596 | return 1; | |
597 | } | |
598 | ||
e683582b | 599 | # ifndef OPENSSL_NO_ENGINE |
d19b01ad DSH |
600 | int EVP_PKEY_set1_engine(EVP_PKEY *pkey, ENGINE *e) |
601 | { | |
602 | if (e != NULL) { | |
603 | if (!ENGINE_init(e)) { | |
604 | EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, ERR_R_ENGINE_LIB); | |
605 | return 0; | |
606 | } | |
607 | if (ENGINE_get_pkey_meth(e, pkey->type) == NULL) { | |
608 | ENGINE_finish(e); | |
609 | EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, EVP_R_UNSUPPORTED_ALGORITHM); | |
610 | return 0; | |
611 | } | |
612 | } | |
613 | ENGINE_finish(pkey->pmeth_engine); | |
614 | pkey->pmeth_engine = e; | |
615 | return 1; | |
616 | } | |
229f7b38 DB |
617 | |
618 | ENGINE *EVP_PKEY_get0_engine(const EVP_PKEY *pkey) | |
619 | { | |
620 | return pkey->engine; | |
621 | } | |
e683582b | 622 | # endif |
01b8b3c7 | 623 | int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) |
0f113f3e | 624 | { |
f4e4382c RL |
625 | int alias = type; |
626 | ||
ad5b71be | 627 | #ifndef OPENSSL_NO_EC |
f4e4382c RL |
628 | if (EVP_PKEY_type(type) == EVP_PKEY_EC) { |
629 | const EC_GROUP *group = EC_KEY_get0_group(key); | |
630 | ||
631 | if (group != NULL && EC_GROUP_get_curve_name(group) == NID_sm2) | |
632 | alias = EVP_PKEY_SM2; | |
633 | } | |
ad5b71be | 634 | #endif |
f4e4382c | 635 | |
e34c66c6 | 636 | if (pkey == NULL || !EVP_PKEY_set_type(pkey, type)) |
0f113f3e | 637 | return 0; |
f4e4382c RL |
638 | if (!EVP_PKEY_set_alias_type(pkey, alias)) |
639 | return 0; | |
0f113f3e MC |
640 | pkey->pkey.ptr = key; |
641 | return (key != NULL); | |
642 | } | |
d02b48c6 | 643 | |
3aeb9348 | 644 | void *EVP_PKEY_get0(const EVP_PKEY *pkey) |
0f113f3e | 645 | { |
acb90ba8 RL |
646 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
647 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
648 | return NULL; | |
649 | } | |
0f113f3e MC |
650 | return pkey->pkey.ptr; |
651 | } | |
db98bbc1 | 652 | |
ebad0b0b NM |
653 | const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len) |
654 | { | |
655 | ASN1_OCTET_STRING *os = NULL; | |
656 | if (pkey->type != EVP_PKEY_HMAC) { | |
657 | EVPerr(EVP_F_EVP_PKEY_GET0_HMAC, EVP_R_EXPECTING_AN_HMAC_KEY); | |
658 | return NULL; | |
659 | } | |
660 | os = EVP_PKEY_get0(pkey); | |
661 | *len = os->length; | |
662 | return os->data; | |
663 | } | |
664 | ||
e683582b | 665 | # ifndef OPENSSL_NO_POLY1305 |
52ad5b60 TS |
666 | const unsigned char *EVP_PKEY_get0_poly1305(const EVP_PKEY *pkey, size_t *len) |
667 | { | |
668 | ASN1_OCTET_STRING *os = NULL; | |
669 | if (pkey->type != EVP_PKEY_POLY1305) { | |
670 | EVPerr(EVP_F_EVP_PKEY_GET0_POLY1305, EVP_R_EXPECTING_A_POLY1305_KEY); | |
671 | return NULL; | |
672 | } | |
673 | os = EVP_PKEY_get0(pkey); | |
674 | *len = os->length; | |
675 | return os->data; | |
676 | } | |
e683582b | 677 | # endif |
52ad5b60 | 678 | |
e683582b | 679 | # ifndef OPENSSL_NO_SIPHASH |
3f5616d7 TS |
680 | const unsigned char *EVP_PKEY_get0_siphash(const EVP_PKEY *pkey, size_t *len) |
681 | { | |
682 | ASN1_OCTET_STRING *os = NULL; | |
683 | ||
684 | if (pkey->type != EVP_PKEY_SIPHASH) { | |
685 | EVPerr(EVP_F_EVP_PKEY_GET0_SIPHASH, EVP_R_EXPECTING_A_SIPHASH_KEY); | |
686 | return NULL; | |
687 | } | |
688 | os = EVP_PKEY_get0(pkey); | |
689 | *len = os->length; | |
690 | return os->data; | |
691 | } | |
e683582b | 692 | # endif |
3f5616d7 | 693 | |
e683582b | 694 | # ifndef OPENSSL_NO_RSA |
c7cb16a8 | 695 | int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) |
52664f50 | 696 | { |
0f113f3e MC |
697 | int ret = EVP_PKEY_assign_RSA(pkey, key); |
698 | if (ret) | |
699 | RSA_up_ref(key); | |
700 | return ret; | |
52664f50 DSH |
701 | } |
702 | ||
9fdcc21f | 703 | RSA *EVP_PKEY_get0_RSA(const EVP_PKEY *pkey) |
0f113f3e | 704 | { |
acb90ba8 RL |
705 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
706 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
707 | return NULL; | |
708 | } | |
465a58b1 | 709 | if (pkey->type != EVP_PKEY_RSA && pkey->type != EVP_PKEY_RSA_PSS) { |
2872dbe1 | 710 | EVPerr(EVP_F_EVP_PKEY_GET0_RSA, EVP_R_EXPECTING_AN_RSA_KEY); |
0f113f3e MC |
711 | return NULL; |
712 | } | |
0f113f3e | 713 | return pkey->pkey.rsa; |
f769ce3e | 714 | } |
2872dbe1 DSH |
715 | |
716 | RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey) | |
717 | { | |
718 | RSA *ret = EVP_PKEY_get0_RSA(pkey); | |
719 | if (ret != NULL) | |
720 | RSA_up_ref(ret); | |
721 | return ret; | |
722 | } | |
e683582b | 723 | # endif |
f769ce3e | 724 | |
e683582b | 725 | # ifndef OPENSSL_NO_DSA |
9fdcc21f | 726 | DSA *EVP_PKEY_get0_DSA(const EVP_PKEY *pkey) |
0f113f3e | 727 | { |
acb90ba8 RL |
728 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
729 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
730 | return NULL; | |
731 | } | |
0f113f3e | 732 | if (pkey->type != EVP_PKEY_DSA) { |
2872dbe1 | 733 | EVPerr(EVP_F_EVP_PKEY_GET0_DSA, EVP_R_EXPECTING_A_DSA_KEY); |
0f113f3e MC |
734 | return NULL; |
735 | } | |
0f113f3e | 736 | return pkey->pkey.dsa; |
f769ce3e | 737 | } |
2872dbe1 | 738 | |
b03ec3b5 SL |
739 | int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) |
740 | { | |
741 | int ret = EVP_PKEY_assign_DSA(pkey, key); | |
742 | if (ret) | |
743 | DSA_up_ref(key); | |
744 | return ret; | |
745 | } | |
2872dbe1 DSH |
746 | DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) |
747 | { | |
748 | DSA *ret = EVP_PKEY_get0_DSA(pkey); | |
749 | if (ret != NULL) | |
750 | DSA_up_ref(ret); | |
751 | return ret; | |
752 | } | |
b03ec3b5 | 753 | # endif /* OPENSSL_NO_DSA */ |
f844f9eb | 754 | #endif /* FIPS_MODULE */ |
f769ce3e | 755 | |
f844f9eb | 756 | #ifndef FIPS_MODULE |
e683582b | 757 | # ifndef OPENSSL_NO_EC |
14a7cfb3 | 758 | int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) |
4d94ae00 | 759 | { |
0f113f3e MC |
760 | int ret = EVP_PKEY_assign_EC_KEY(pkey, key); |
761 | if (ret) | |
762 | EC_KEY_up_ref(key); | |
763 | return ret; | |
4d94ae00 BM |
764 | } |
765 | ||
9fdcc21f | 766 | EC_KEY *EVP_PKEY_get0_EC_KEY(const EVP_PKEY *pkey) |
4d94ae00 | 767 | { |
acb90ba8 RL |
768 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
769 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
770 | return NULL; | |
771 | } | |
f4e4382c | 772 | if (EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) { |
2872dbe1 | 773 | EVPerr(EVP_F_EVP_PKEY_GET0_EC_KEY, EVP_R_EXPECTING_A_EC_KEY); |
0f113f3e MC |
774 | return NULL; |
775 | } | |
0f113f3e | 776 | return pkey->pkey.ec; |
4d94ae00 | 777 | } |
2872dbe1 DSH |
778 | |
779 | EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) | |
780 | { | |
781 | EC_KEY *ret = EVP_PKEY_get0_EC_KEY(pkey); | |
782 | if (ret != NULL) | |
783 | EC_KEY_up_ref(ret); | |
784 | return ret; | |
785 | } | |
e683582b | 786 | # endif |
4d94ae00 | 787 | |
e683582b | 788 | # ifndef OPENSSL_NO_DH |
52664f50 | 789 | |
c7cb16a8 | 790 | int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) |
52664f50 | 791 | { |
32c869ff MC |
792 | int type = DH_get0_q(key) == NULL ? EVP_PKEY_DH : EVP_PKEY_DHX; |
793 | int ret = EVP_PKEY_assign(pkey, type, key); | |
794 | ||
0f113f3e MC |
795 | if (ret) |
796 | DH_up_ref(key); | |
797 | return ret; | |
52664f50 DSH |
798 | } |
799 | ||
9fdcc21f | 800 | DH *EVP_PKEY_get0_DH(const EVP_PKEY *pkey) |
0f113f3e | 801 | { |
acb90ba8 RL |
802 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
803 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
804 | return NULL; | |
805 | } | |
0f113f3e | 806 | if (pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) { |
2872dbe1 | 807 | EVPerr(EVP_F_EVP_PKEY_GET0_DH, EVP_R_EXPECTING_A_DH_KEY); |
0f113f3e MC |
808 | return NULL; |
809 | } | |
0f113f3e | 810 | return pkey->pkey.dh; |
f769ce3e | 811 | } |
2872dbe1 DSH |
812 | |
813 | DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) | |
814 | { | |
815 | DH *ret = EVP_PKEY_get0_DH(pkey); | |
816 | if (ret != NULL) | |
817 | DH_up_ref(ret); | |
818 | return ret; | |
819 | } | |
e683582b | 820 | # endif |
f769ce3e | 821 | |
6b691a5c | 822 | int EVP_PKEY_type(int type) |
0f113f3e MC |
823 | { |
824 | int ret; | |
825 | const EVP_PKEY_ASN1_METHOD *ameth; | |
826 | ENGINE *e; | |
827 | ameth = EVP_PKEY_asn1_find(&e, type); | |
828 | if (ameth) | |
829 | ret = ameth->pkey_id; | |
830 | else | |
831 | ret = NID_undef; | |
e683582b | 832 | # ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 833 | ENGINE_finish(e); |
e683582b | 834 | # endif |
0f113f3e MC |
835 | return ret; |
836 | } | |
d02b48c6 | 837 | |
7f57b076 | 838 | int EVP_PKEY_id(const EVP_PKEY *pkey) |
0f113f3e MC |
839 | { |
840 | return pkey->type; | |
841 | } | |
7f57b076 DSH |
842 | |
843 | int EVP_PKEY_base_id(const EVP_PKEY *pkey) | |
0f113f3e MC |
844 | { |
845 | return EVP_PKEY_type(pkey->type); | |
846 | } | |
7f57b076 | 847 | |
4f76d62f RL |
848 | int EVP_PKEY_is_a(const EVP_PKEY *pkey, const char *name) |
849 | { | |
f844f9eb | 850 | #ifndef FIPS_MODULE |
4f76d62f RL |
851 | if (pkey->keymgmt == NULL) { |
852 | /* | |
853 | * These hard coded cases are pure hackery to get around the fact | |
854 | * that names in crypto/objects/objects.txt are a mess. There is | |
855 | * no "EC", and "RSA" leads to the NID for 2.5.8.1.1, an OID that's | |
856 | * fallen out in favor of { pkcs-1 1 }, i.e. 1.2.840.113549.1.1.1, | |
857 | * the NID of which is used for EVP_PKEY_RSA. Strangely enough, | |
858 | * "DSA" is accurate... but still, better be safe and hard-code | |
859 | * names that we know. | |
860 | * TODO Clean this away along with all other #legacy support. | |
861 | */ | |
862 | int type; | |
863 | ||
864 | if (strcasecmp(name, "RSA") == 0) | |
865 | type = EVP_PKEY_RSA; | |
866 | #ifndef OPENSSL_NO_EC | |
867 | else if (strcasecmp(name, "EC") == 0) | |
868 | type = EVP_PKEY_EC; | |
869 | #endif | |
870 | #ifndef OPENSSL_NO_DSA | |
871 | else if (strcasecmp(name, "DSA") == 0) | |
872 | type = EVP_PKEY_DSA; | |
873 | #endif | |
874 | else | |
875 | type = EVP_PKEY_type(OBJ_sn2nid(name)); | |
876 | return EVP_PKEY_type(pkey->type) == type; | |
877 | } | |
878 | #endif | |
879 | return EVP_KEYMGMT_is_a(pkey->keymgmt, name); | |
880 | } | |
881 | ||
882 | int EVP_PKEY_can_sign(const EVP_PKEY *pkey) | |
883 | { | |
884 | if (pkey->keymgmt == NULL) { | |
885 | switch (EVP_PKEY_base_id(pkey)) { | |
886 | case EVP_PKEY_RSA: | |
887 | return 1; | |
888 | #ifndef OPENSSL_NO_DSA | |
889 | case EVP_PKEY_DSA: | |
890 | return 1; | |
891 | #endif | |
892 | #ifndef OPENSSL_NO_EC | |
893 | case EVP_PKEY_ED25519: | |
894 | case EVP_PKEY_ED448: | |
895 | return 1; | |
896 | case EVP_PKEY_EC: /* Including SM2 */ | |
897 | return EC_KEY_can_sign(pkey->pkey.ec); | |
898 | #endif | |
899 | default: | |
900 | break; | |
901 | } | |
902 | } else { | |
903 | const OSSL_PROVIDER *prov = EVP_KEYMGMT_provider(pkey->keymgmt); | |
904 | OPENSSL_CTX *libctx = ossl_provider_library_context(prov); | |
905 | const char *supported_sig = | |
906 | pkey->keymgmt->query_operation_name != NULL | |
907 | ? pkey->keymgmt->query_operation_name(OSSL_OP_SIGNATURE) | |
908 | : evp_first_name(prov, pkey->keymgmt->name_id); | |
909 | EVP_SIGNATURE *signature = NULL; | |
910 | ||
911 | signature = EVP_SIGNATURE_fetch(libctx, supported_sig, NULL); | |
912 | if (signature != NULL) { | |
913 | EVP_SIGNATURE_free(signature); | |
914 | return 1; | |
915 | } | |
916 | } | |
917 | return 0; | |
918 | } | |
d02b48c6 | 919 | |
c2041da8 RL |
920 | #ifndef OPENSSL_NO_EC |
921 | /* | |
922 | * TODO rewrite when we have proper data extraction functions | |
923 | * Note: an octet pointer would be desirable! | |
924 | */ | |
925 | static OSSL_CALLBACK get_ec_curve_name_cb; | |
926 | static int get_ec_curve_name_cb(const OSSL_PARAM params[], void *arg) | |
927 | { | |
928 | const OSSL_PARAM *p = NULL; | |
929 | ||
930 | if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_EC_NAME)) != NULL) | |
931 | return OSSL_PARAM_get_utf8_string(p, arg, 0); | |
932 | ||
933 | /* If there is no curve name, this is not an EC key */ | |
934 | return 0; | |
935 | } | |
936 | ||
937 | int evp_pkey_get_EC_KEY_curve_nid(const EVP_PKEY *pkey) | |
938 | { | |
939 | int ret = NID_undef; | |
940 | ||
941 | if (pkey->keymgmt == NULL) { | |
942 | if (EVP_PKEY_base_id(pkey) == EVP_PKEY_EC) { | |
943 | EC_KEY *ec = EVP_PKEY_get0_EC_KEY(pkey); | |
944 | ||
945 | ret = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec)); | |
946 | } | |
947 | } else if (EVP_PKEY_is_a(pkey, "EC") || EVP_PKEY_is_a(pkey, "SM2")) { | |
948 | char *curve_name = NULL; | |
949 | ||
950 | ret = evp_keymgmt_export(pkey->keymgmt, pkey->keydata, | |
951 | OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS, | |
952 | get_ec_curve_name_cb, &curve_name); | |
953 | if (ret) | |
954 | ret = ec_curve_name2nid(curve_name); | |
955 | OPENSSL_free(curve_name); | |
956 | } | |
957 | ||
958 | return ret; | |
959 | } | |
960 | #endif | |
961 | ||
f1299839 RL |
962 | static int print_reset_indent(BIO **out, int pop_f_prefix, long saved_indent) |
963 | { | |
964 | BIO_set_indent(*out, saved_indent); | |
965 | if (pop_f_prefix) { | |
966 | BIO *next = BIO_pop(*out); | |
967 | ||
968 | BIO_free(*out); | |
969 | *out = next; | |
970 | } | |
971 | return 1; | |
972 | } | |
973 | ||
974 | static int print_set_indent(BIO **out, int *pop_f_prefix, long *saved_indent, | |
975 | long indent) | |
976 | { | |
977 | *pop_f_prefix = 0; | |
978 | *saved_indent = 0; | |
979 | if (indent > 0) { | |
980 | long i = BIO_get_indent(*out); | |
981 | ||
982 | *saved_indent = (i < 0 ? 0 : i); | |
983 | if (BIO_set_indent(*out, indent) <= 0) { | |
984 | if ((*out = BIO_push(BIO_new(BIO_f_prefix()), *out)) == NULL) | |
985 | return 0; | |
986 | *pop_f_prefix = 1; | |
987 | } | |
988 | if (BIO_set_indent(*out, indent) <= 0) { | |
989 | print_reset_indent(out, *pop_f_prefix, *saved_indent); | |
990 | return 0; | |
991 | } | |
992 | } | |
993 | return 1; | |
994 | } | |
995 | ||
35208f36 | 996 | static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent, |
0f113f3e MC |
997 | const char *kstr) |
998 | { | |
5310a4e6 P |
999 | return BIO_indent(out, indent, 128) |
1000 | && BIO_printf(out, "%s algorithm \"%s\" unsupported\n", | |
1001 | kstr, OBJ_nid2ln(pkey->type)) > 0; | |
0f113f3e | 1002 | } |
35208f36 | 1003 | |
f1299839 RL |
1004 | static int print_pkey(const EVP_PKEY *pkey, BIO *out, int indent, |
1005 | const char *propquery /* For provided serialization */, | |
1006 | int (*legacy_print)(BIO *out, const EVP_PKEY *pkey, | |
1007 | int indent, ASN1_PCTX *pctx), | |
1008 | ASN1_PCTX *legacy_pctx /* For legacy print */) | |
0f113f3e | 1009 | { |
f1299839 RL |
1010 | int pop_f_prefix; |
1011 | long saved_indent; | |
1012 | OSSL_SERIALIZER_CTX *ctx = NULL; | |
1013 | int ret = -2; /* default to unsupported */ | |
1014 | ||
1015 | if (!print_set_indent(&out, &pop_f_prefix, &saved_indent, indent)) | |
1016 | return 0; | |
54c1711f | 1017 | |
f1299839 | 1018 | ctx = OSSL_SERIALIZER_CTX_new_by_EVP_PKEY(pkey, propquery); |
54c1711f RL |
1019 | if (OSSL_SERIALIZER_CTX_get_serializer(ctx) != NULL) |
1020 | ret = OSSL_SERIALIZER_to_bio(ctx, out); | |
1021 | OSSL_SERIALIZER_CTX_free(ctx); | |
1022 | ||
1023 | if (ret != -2) | |
f1299839 | 1024 | goto end; |
54c1711f RL |
1025 | |
1026 | /* legacy fallback */ | |
f1299839 RL |
1027 | if (legacy_print != NULL) |
1028 | ret = legacy_print(out, pkey, 0, legacy_pctx); | |
1029 | else | |
1030 | ret = unsup_alg(out, pkey, 0, "Public Key"); | |
0f113f3e | 1031 | |
f1299839 RL |
1032 | end: |
1033 | print_reset_indent(&out, pop_f_prefix, saved_indent); | |
1034 | return ret; | |
1035 | } | |
1036 | ||
1037 | int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, | |
1038 | int indent, ASN1_PCTX *pctx) | |
1039 | { | |
1040 | return print_pkey(pkey, out, indent, OSSL_SERIALIZER_PUBKEY_TO_TEXT_PQ, | |
1041 | (pkey->ameth != NULL ? pkey->ameth->pub_print : NULL), | |
1042 | pctx); | |
0f113f3e | 1043 | } |
35208f36 DSH |
1044 | |
1045 | int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
1046 | int indent, ASN1_PCTX *pctx) |
1047 | { | |
f1299839 RL |
1048 | return print_pkey(pkey, out, indent, OSSL_SERIALIZER_PrivateKey_TO_TEXT_PQ, |
1049 | (pkey->ameth != NULL ? pkey->ameth->priv_print : NULL), | |
1050 | pctx); | |
0f113f3e | 1051 | } |
35208f36 DSH |
1052 | |
1053 | int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
1054 | int indent, ASN1_PCTX *pctx) |
1055 | { | |
f1299839 RL |
1056 | return print_pkey(pkey, out, indent, OSSL_SERIALIZER_Parameters_TO_TEXT_PQ, |
1057 | (pkey->ameth != NULL ? pkey->ameth->param_print : NULL), | |
1058 | pctx); | |
0f113f3e | 1059 | } |
03919683 | 1060 | |
ead0d234 RL |
1061 | static int legacy_asn1_ctrl_to_param(EVP_PKEY *pkey, int op, |
1062 | int arg1, void *arg2) | |
1063 | { | |
3c6ed955 | 1064 | if (pkey->keymgmt == NULL) |
ead0d234 RL |
1065 | return 0; |
1066 | switch (op) { | |
1067 | case ASN1_PKEY_CTRL_DEFAULT_MD_NID: | |
1068 | { | |
1069 | char mdname[80] = ""; | |
1070 | int nid; | |
1071 | int rv = EVP_PKEY_get_default_digest_name(pkey, mdname, | |
1072 | sizeof(mdname)); | |
1073 | ||
1074 | if (rv <= 0) | |
1075 | return rv; | |
1076 | nid = OBJ_sn2nid(mdname); | |
1077 | if (nid == NID_undef) | |
1078 | nid = OBJ_ln2nid(mdname); | |
1079 | if (nid == NID_undef) | |
1080 | return 0; | |
1081 | *(int *)arg2 = nid; | |
1082 | return 1; | |
1083 | } | |
1084 | default: | |
1085 | return -2; | |
1086 | } | |
1087 | } | |
1088 | ||
5d6aaf8a | 1089 | static int evp_pkey_asn1_ctrl(EVP_PKEY *pkey, int op, int arg1, void *arg2) |
0f113f3e | 1090 | { |
ead0d234 RL |
1091 | if (pkey->ameth == NULL) |
1092 | return legacy_asn1_ctrl_to_param(pkey, op, arg1, arg2); | |
1093 | if (pkey->ameth->pkey_ctrl == NULL) | |
0f113f3e | 1094 | return -2; |
5d6aaf8a DSH |
1095 | return pkey->ameth->pkey_ctrl(pkey, op, arg1, arg2); |
1096 | } | |
1097 | ||
1098 | int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid) | |
1099 | { | |
1100 | return evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 0, pnid); | |
1101 | } | |
1102 | ||
ead0d234 RL |
1103 | int EVP_PKEY_get_default_digest_name(EVP_PKEY *pkey, |
1104 | char *mdname, size_t mdname_sz) | |
1105 | { | |
3b924da0 RL |
1106 | if (pkey->ameth == NULL) |
1107 | return evp_keymgmt_util_get_deflt_digest_name(pkey->keymgmt, | |
1108 | pkey->keydata, | |
1109 | mdname, mdname_sz); | |
ead0d234 RL |
1110 | |
1111 | { | |
1112 | int nid = NID_undef; | |
1113 | int rv = EVP_PKEY_get_default_digest_nid(pkey, &nid); | |
1114 | const char *name = rv > 0 ? OBJ_nid2sn(nid) : NULL; | |
1115 | ||
1116 | if (rv > 0) | |
1117 | OPENSSL_strlcpy(mdname, name, mdname_sz); | |
1118 | return rv; | |
1119 | } | |
1120 | } | |
1121 | ||
ecbb2fca DW |
1122 | int EVP_PKEY_supports_digest_nid(EVP_PKEY *pkey, int nid) |
1123 | { | |
1124 | int rv, default_nid; | |
1125 | ||
1126 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SUPPORTS_MD_NID, nid, NULL); | |
1127 | if (rv == -2) { | |
1128 | /* | |
1129 | * If there is a mandatory default digest and this isn't it, then | |
1130 | * the answer is 'no'. | |
1131 | */ | |
1132 | rv = EVP_PKEY_get_default_digest_nid(pkey, &default_nid); | |
1133 | if (rv == 2) | |
1134 | return (nid == default_nid); | |
1135 | /* zero is an error from EVP_PKEY_get_default_digest_nid() */ | |
1136 | if (rv == 0) | |
1137 | return -1; | |
1138 | } | |
1139 | return rv; | |
1140 | } | |
1141 | ||
5d6aaf8a DSH |
1142 | int EVP_PKEY_set1_tls_encodedpoint(EVP_PKEY *pkey, |
1143 | const unsigned char *pt, size_t ptlen) | |
1144 | { | |
1145 | if (ptlen > INT_MAX) | |
1146 | return 0; | |
1147 | if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, ptlen, | |
1148 | (void *)pt) <= 0) | |
1149 | return 0; | |
1150 | return 1; | |
1151 | } | |
1152 | ||
1153 | size_t EVP_PKEY_get1_tls_encodedpoint(EVP_PKEY *pkey, unsigned char **ppt) | |
1154 | { | |
1155 | int rv; | |
1156 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppt); | |
1157 | if (rv <= 0) | |
1158 | return 0; | |
1159 | return rv; | |
0f113f3e | 1160 | } |
e683582b | 1161 | |
f844f9eb | 1162 | #endif /* FIPS_MODULE */ |
e683582b | 1163 | |
f844f9eb | 1164 | /*- All methods below can also be used in FIPS_MODULE */ |
e683582b SL |
1165 | |
1166 | EVP_PKEY *EVP_PKEY_new(void) | |
1167 | { | |
1168 | EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret)); | |
1169 | ||
1170 | if (ret == NULL) { | |
1171 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
1172 | return NULL; | |
1173 | } | |
1174 | ret->type = EVP_PKEY_NONE; | |
1175 | ret->save_type = EVP_PKEY_NONE; | |
1176 | ret->references = 1; | |
1177 | ret->save_parameters = 1; | |
1178 | ret->lock = CRYPTO_THREAD_lock_new(); | |
1179 | if (ret->lock == NULL) { | |
1180 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
ff1f7cde AT |
1181 | goto err; |
1182 | } | |
f844f9eb | 1183 | #ifndef FIPS_MODULE |
ff1f7cde AT |
1184 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, ret, &ret->ex_data)) { |
1185 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
1186 | goto err; | |
e683582b | 1187 | } |
ff1f7cde | 1188 | #endif |
e683582b | 1189 | return ret; |
ff1f7cde AT |
1190 | |
1191 | err: | |
1192 | CRYPTO_THREAD_lock_free(ret->lock); | |
1193 | OPENSSL_free(ret); | |
1194 | return NULL; | |
e683582b SL |
1195 | } |
1196 | ||
8243d8d1 RL |
1197 | /* |
1198 | * Setup a public key management method. | |
1199 | * | |
1200 | * For legacy keys, either |type| or |str| is expected to have the type | |
1201 | * information. In this case, the setup consists of finding an ASN1 method | |
1202 | * and potentially an ENGINE, and setting those fields in |pkey|. | |
1203 | * | |
1204 | * For provider side keys, |keymgmt| is expected to be non-NULL. In this | |
1205 | * case, the setup consists of setting the |keymgmt| field in |pkey|. | |
1206 | * | |
1207 | * If pkey is NULL just return 1 or 0 if the key management method exists. | |
1208 | */ | |
1209 | ||
1210 | static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str, | |
1211 | int len, EVP_KEYMGMT *keymgmt) | |
1212 | { | |
f844f9eb | 1213 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1214 | const EVP_PKEY_ASN1_METHOD *ameth = NULL; |
1215 | ENGINE **eptr = (e == NULL) ? &e : NULL; | |
1216 | #endif | |
1217 | ||
1218 | /* | |
1219 | * The setups can't set both legacy and provider side methods. | |
1220 | * It is forbidden | |
1221 | */ | |
1222 | if (!ossl_assert(type == EVP_PKEY_NONE || keymgmt == NULL) | |
1223 | || !ossl_assert(e == NULL || keymgmt == NULL)) { | |
1224 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1225 | return 0; | |
1226 | } | |
1227 | ||
1228 | if (pkey != NULL) { | |
1229 | int free_it = 0; | |
1230 | ||
f844f9eb | 1231 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1232 | free_it = free_it || pkey->pkey.ptr != NULL; |
1233 | #endif | |
1234 | free_it = free_it || pkey->keydata != NULL; | |
1235 | if (free_it) | |
1236 | evp_pkey_free_it(pkey); | |
f844f9eb | 1237 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1238 | /* |
1239 | * If key type matches and a method exists then this lookup has | |
1240 | * succeeded once so just indicate success. | |
1241 | */ | |
1242 | if (pkey->type != EVP_PKEY_NONE | |
1243 | && type == pkey->save_type | |
1244 | && pkey->ameth != NULL) | |
1245 | return 1; | |
1246 | # ifndef OPENSSL_NO_ENGINE | |
1247 | /* If we have ENGINEs release them */ | |
1248 | ENGINE_finish(pkey->engine); | |
1249 | pkey->engine = NULL; | |
1250 | ENGINE_finish(pkey->pmeth_engine); | |
1251 | pkey->pmeth_engine = NULL; | |
1252 | # endif | |
1253 | #endif | |
1254 | } | |
f844f9eb | 1255 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1256 | if (str != NULL) |
1257 | ameth = EVP_PKEY_asn1_find_str(eptr, str, len); | |
1258 | else if (type != EVP_PKEY_NONE) | |
1259 | ameth = EVP_PKEY_asn1_find(eptr, type); | |
1260 | # ifndef OPENSSL_NO_ENGINE | |
1261 | if (pkey == NULL && eptr != NULL) | |
1262 | ENGINE_finish(e); | |
1263 | # endif | |
1264 | #endif | |
1265 | ||
1266 | ||
1267 | { | |
1268 | int check = 1; | |
1269 | ||
f844f9eb | 1270 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1271 | check = check && ameth == NULL; |
1272 | #endif | |
1273 | check = check && keymgmt == NULL; | |
1274 | if (check) { | |
1275 | EVPerr(EVP_F_PKEY_SET_TYPE, EVP_R_UNSUPPORTED_ALGORITHM); | |
1276 | return 0; | |
1277 | } | |
1278 | } | |
1279 | if (pkey != NULL) { | |
1280 | if (keymgmt != NULL && !EVP_KEYMGMT_up_ref(keymgmt)) { | |
1281 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1282 | return 0; | |
1283 | } | |
1284 | ||
1285 | pkey->keymgmt = keymgmt; | |
1286 | ||
1287 | pkey->save_type = type; | |
1288 | pkey->type = type; | |
1289 | ||
f844f9eb | 1290 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1291 | /* |
1292 | * If the internal "origin" key is provider side, don't save |ameth|. | |
1293 | * The main reason is that |ameth| is one factor to detect that the | |
1294 | * internal "origin" key is a legacy one. | |
1295 | */ | |
1296 | if (keymgmt == NULL) | |
1297 | pkey->ameth = ameth; | |
1298 | pkey->engine = e; | |
1299 | ||
1300 | /* | |
1301 | * The EVP_PKEY_ASN1_METHOD |pkey_id| serves different purposes, | |
1302 | * depending on if we're setting this key to contain a legacy or | |
1303 | * a provider side "origin" key. For a legacy key, we assign it | |
1304 | * to the |type| field, but for a provider side key, we assign it | |
1305 | * to the |save_type| field, because |type| is supposed to be set | |
1306 | * to EVP_PKEY_NONE in that case. | |
1307 | */ | |
9dbfb11d P |
1308 | if (ameth != NULL) { |
1309 | if (keymgmt != NULL) | |
1310 | pkey->save_type = ameth->pkey_id; | |
1311 | else if (pkey->ameth != NULL) | |
1312 | pkey->type = ameth->pkey_id; | |
1313 | } | |
8243d8d1 RL |
1314 | #endif |
1315 | } | |
1316 | return 1; | |
1317 | } | |
1318 | ||
f844f9eb | 1319 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1320 | static void find_ameth(const char *name, void *data) |
1321 | { | |
1322 | const char **str = data; | |
1323 | ||
1324 | /* | |
1325 | * The error messages from pkey_set_type() are uninteresting here, | |
1326 | * and misleading. | |
1327 | */ | |
1328 | ERR_set_mark(); | |
1329 | ||
1330 | if (pkey_set_type(NULL, NULL, EVP_PKEY_NONE, name, strlen(name), | |
1331 | NULL)) { | |
1332 | if (str[0] == NULL) | |
1333 | str[0] = name; | |
1334 | else if (str[1] == NULL) | |
1335 | str[1] = name; | |
1336 | } | |
1337 | ||
1338 | ERR_pop_to_mark(); | |
1339 | } | |
1340 | #endif | |
1341 | ||
1342 | int EVP_PKEY_set_type_by_keymgmt(EVP_PKEY *pkey, EVP_KEYMGMT *keymgmt) | |
1343 | { | |
f844f9eb | 1344 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1345 | # define EVP_PKEY_TYPE_STR str[0] |
1346 | # define EVP_PKEY_TYPE_STRLEN (str[0] == NULL ? -1 : (int)strlen(str[0])) | |
1347 | /* | |
1348 | * Find at most two strings that have an associated EVP_PKEY_ASN1_METHOD | |
1349 | * Ideally, only one should be found. If two (or more) are found, the | |
1350 | * match is ambiguous. This should never happen, but... | |
1351 | */ | |
1352 | const char *str[2] = { NULL, NULL }; | |
1353 | ||
1354 | EVP_KEYMGMT_names_do_all(keymgmt, find_ameth, &str); | |
1355 | if (str[1] != NULL) { | |
1356 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1357 | return 0; | |
1358 | } | |
1359 | #else | |
1360 | # define EVP_PKEY_TYPE_STR NULL | |
1361 | # define EVP_PKEY_TYPE_STRLEN -1 | |
1362 | #endif | |
1363 | return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, | |
1364 | EVP_PKEY_TYPE_STR, EVP_PKEY_TYPE_STRLEN, | |
1365 | keymgmt); | |
1366 | ||
1367 | #undef EVP_PKEY_TYPE_STR | |
1368 | #undef EVP_PKEY_TYPE_STRLEN | |
1369 | } | |
1370 | ||
e683582b SL |
1371 | int EVP_PKEY_up_ref(EVP_PKEY *pkey) |
1372 | { | |
1373 | int i; | |
1374 | ||
1375 | if (CRYPTO_UP_REF(&pkey->references, &i, pkey->lock) <= 0) | |
1376 | return 0; | |
1377 | ||
1378 | REF_PRINT_COUNT("EVP_PKEY", pkey); | |
1379 | REF_ASSERT_ISNT(i < 2); | |
1380 | return ((i > 1) ? 1 : 0); | |
1381 | } | |
1382 | ||
f844f9eb | 1383 | #ifndef FIPS_MODULE |
62924755 | 1384 | void evp_pkey_free_legacy(EVP_PKEY *x) |
badf51c8 RL |
1385 | { |
1386 | if (x->ameth != NULL) { | |
ff3b59e1 | 1387 | if (x->ameth->pkey_free != NULL) |
badf51c8 RL |
1388 | x->ameth->pkey_free(x); |
1389 | x->pkey.ptr = NULL; | |
badf51c8 RL |
1390 | } |
1391 | # ifndef OPENSSL_NO_ENGINE | |
1392 | ENGINE_finish(x->engine); | |
1393 | x->engine = NULL; | |
1394 | ENGINE_finish(x->pmeth_engine); | |
1395 | x->pmeth_engine = NULL; | |
1396 | # endif | |
8243d8d1 | 1397 | x->type = EVP_PKEY_NONE; |
badf51c8 | 1398 | } |
f844f9eb | 1399 | #endif /* FIPS_MODULE */ |
badf51c8 | 1400 | |
e683582b SL |
1401 | static void evp_pkey_free_it(EVP_PKEY *x) |
1402 | { | |
1403 | /* internal function; x is never NULL */ | |
1404 | ||
3c6ed955 | 1405 | evp_keymgmt_util_clear_operation_cache(x); |
f844f9eb | 1406 | #ifndef FIPS_MODULE |
badf51c8 RL |
1407 | evp_pkey_free_legacy(x); |
1408 | #endif | |
e683582b | 1409 | |
3c6ed955 RL |
1410 | if (x->keymgmt != NULL) { |
1411 | evp_keymgmt_freedata(x->keymgmt, x->keydata); | |
1412 | EVP_KEYMGMT_free(x->keymgmt); | |
1413 | x->keymgmt = NULL; | |
1414 | x->keydata = NULL; | |
1415 | } | |
e683582b SL |
1416 | } |
1417 | ||
1418 | void EVP_PKEY_free(EVP_PKEY *x) | |
1419 | { | |
1420 | int i; | |
1421 | ||
1422 | if (x == NULL) | |
1423 | return; | |
1424 | ||
1425 | CRYPTO_DOWN_REF(&x->references, &i, x->lock); | |
1426 | REF_PRINT_COUNT("EVP_PKEY", x); | |
1427 | if (i > 0) | |
1428 | return; | |
1429 | REF_ASSERT_ISNT(i < 0); | |
1430 | evp_pkey_free_it(x); | |
f844f9eb | 1431 | #ifndef FIPS_MODULE |
ff1f7cde AT |
1432 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, x, &x->ex_data); |
1433 | #endif | |
e683582b | 1434 | CRYPTO_THREAD_lock_free(x->lock); |
f844f9eb | 1435 | #ifndef FIPS_MODULE |
e683582b SL |
1436 | sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free); |
1437 | #endif | |
1438 | OPENSSL_free(x); | |
1439 | } | |
1440 | ||
e683582b SL |
1441 | int EVP_PKEY_size(const EVP_PKEY *pkey) |
1442 | { | |
adc9f731 RL |
1443 | int size = 0; |
1444 | ||
6508e858 | 1445 | if (pkey != NULL) { |
adc9f731 | 1446 | size = pkey->cache.size; |
f844f9eb | 1447 | #ifndef FIPS_MODULE |
adc9f731 RL |
1448 | if (pkey->ameth != NULL && pkey->ameth->pkey_size != NULL) |
1449 | size = pkey->ameth->pkey_size(pkey); | |
1450 | #endif | |
6508e858 | 1451 | } |
adc9f731 | 1452 | return size; |
e683582b | 1453 | } |
f6aa5774 | 1454 | |
3c6ed955 RL |
1455 | void *evp_pkey_export_to_provider(EVP_PKEY *pk, OPENSSL_CTX *libctx, |
1456 | EVP_KEYMGMT **keymgmt, | |
1457 | const char *propquery) | |
f6aa5774 RL |
1458 | { |
1459 | EVP_KEYMGMT *allocated_keymgmt = NULL; | |
1460 | EVP_KEYMGMT *tmp_keymgmt = NULL; | |
b305452f | 1461 | void *keydata = NULL; |
adc9f731 | 1462 | int check; |
f6aa5774 RL |
1463 | |
1464 | if (pk == NULL) | |
1465 | return NULL; | |
1466 | ||
adc9f731 RL |
1467 | /* No key data => nothing to export */ |
1468 | check = 1; | |
f844f9eb | 1469 | #ifndef FIPS_MODULE |
adc9f731 RL |
1470 | check = check && pk->pkey.ptr == NULL; |
1471 | #endif | |
1472 | check = check && pk->keydata == NULL; | |
1473 | if (check) | |
1474 | return NULL; | |
1475 | ||
f844f9eb | 1476 | #ifndef FIPS_MODULE |
3f7ce7f1 | 1477 | if (pk->pkey.ptr != NULL) { |
3f7ce7f1 | 1478 | /* |
3c6ed955 RL |
1479 | * If the legacy key doesn't have an dirty counter or export function, |
1480 | * give up | |
3f7ce7f1 | 1481 | */ |
3c6ed955 RL |
1482 | if (pk->ameth->dirty_cnt == NULL || pk->ameth->export_to == NULL) |
1483 | return NULL; | |
3f7ce7f1 RL |
1484 | } |
1485 | #endif | |
1486 | ||
3c6ed955 RL |
1487 | if (keymgmt != NULL) { |
1488 | tmp_keymgmt = *keymgmt; | |
1489 | *keymgmt = NULL; | |
1490 | } | |
1491 | ||
4b9e90f4 RL |
1492 | /* |
1493 | * If no keymgmt was given or found, get a default keymgmt. We do so by | |
1494 | * letting EVP_PKEY_CTX_new_from_pkey() do it for us, then we steal it. | |
1495 | */ | |
f6aa5774 | 1496 | if (tmp_keymgmt == NULL) { |
2ee4a50a | 1497 | EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk, propquery); |
f6aa5774 | 1498 | |
4b9e90f4 RL |
1499 | tmp_keymgmt = ctx->keymgmt; |
1500 | ctx->keymgmt = NULL; | |
f6aa5774 RL |
1501 | EVP_PKEY_CTX_free(ctx); |
1502 | } | |
1503 | ||
3c6ed955 | 1504 | /* If there's still no keymgmt to be had, give up */ |
3f7ce7f1 RL |
1505 | if (tmp_keymgmt == NULL) |
1506 | goto end; | |
f6aa5774 | 1507 | |
f844f9eb | 1508 | #ifndef FIPS_MODULE |
3f7ce7f1 | 1509 | if (pk->pkey.ptr != NULL) { |
3c6ed955 | 1510 | size_t i = 0; |
3f7ce7f1 RL |
1511 | |
1512 | /* | |
3c6ed955 RL |
1513 | * If the legacy "origin" hasn't changed since last time, we try |
1514 | * to find our keymgmt in the operation cache. If it has changed, | |
1515 | * |i| remains zero, and we will clear the cache further down. | |
3f7ce7f1 | 1516 | */ |
3c6ed955 RL |
1517 | if (pk->ameth->dirty_cnt(pk) == pk->dirty_cnt_copy) { |
1518 | i = evp_keymgmt_util_find_operation_cache_index(pk, tmp_keymgmt); | |
1519 | ||
1520 | /* | |
1521 | * If |tmp_keymgmt| is present in the operation cache, it means | |
1522 | * that export doesn't need to be redone. In that case, we take | |
1523 | * token copies of the cached pointers, to have token success | |
1524 | * values to return. | |
1525 | */ | |
1526 | if (i < OSSL_NELEM(pk->operation_cache) | |
1527 | && pk->operation_cache[i].keymgmt != NULL) { | |
1528 | keydata = pk->operation_cache[i].keydata; | |
1529 | goto end; | |
1530 | } | |
3f7ce7f1 RL |
1531 | } |
1532 | ||
1533 | /* | |
3c6ed955 RL |
1534 | * TODO(3.0) Right now, we assume we have ample space. We will have |
1535 | * to think about a cache aging scheme, though, if |i| indexes outside | |
1536 | * the array. | |
3f7ce7f1 | 1537 | */ |
3c6ed955 | 1538 | if (!ossl_assert(i < OSSL_NELEM(pk->operation_cache))) |
3f7ce7f1 RL |
1539 | goto end; |
1540 | ||
1541 | /* Make sure that the keymgmt key type matches the legacy NID */ | |
1542 | if (!ossl_assert(EVP_KEYMGMT_is_a(tmp_keymgmt, OBJ_nid2sn(pk->type)))) | |
1543 | goto end; | |
1544 | ||
1545 | if ((keydata = evp_keymgmt_newdata(tmp_keymgmt)) == NULL) | |
1546 | goto end; | |
1547 | ||
76e23fc5 | 1548 | if (!pk->ameth->export_to(pk, keydata, tmp_keymgmt, libctx, propquery)) { |
3f7ce7f1 RL |
1549 | evp_keymgmt_freedata(tmp_keymgmt, keydata); |
1550 | keydata = NULL; | |
1551 | goto end; | |
1552 | } | |
1553 | ||
3c6ed955 RL |
1554 | /* |
1555 | * If the dirty counter changed since last time, then clear the | |
1556 | * operation cache. In that case, we know that |i| is zero. Just | |
1557 | * in case this is a re-export, we increment then decrement the | |
1558 | * keymgmt reference counter. | |
1559 | */ | |
1560 | if (!EVP_KEYMGMT_up_ref(tmp_keymgmt)) { /* refcnt++ */ | |
1561 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1562 | keydata = NULL; | |
1563 | goto end; | |
1564 | } | |
1565 | if (pk->ameth->dirty_cnt(pk) != pk->dirty_cnt_copy) | |
1566 | evp_keymgmt_util_clear_operation_cache(pk); | |
1567 | EVP_KEYMGMT_free(tmp_keymgmt); /* refcnt-- */ | |
1568 | ||
1569 | /* Add the new export to the operation cache */ | |
1570 | if (!evp_keymgmt_util_cache_keydata(pk, i, tmp_keymgmt, keydata)) { | |
1571 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1572 | keydata = NULL; | |
1573 | goto end; | |
1574 | } | |
3f7ce7f1 RL |
1575 | |
1576 | /* Synchronize the dirty count */ | |
1577 | pk->dirty_cnt_copy = pk->ameth->dirty_cnt(pk); | |
1578 | goto end; | |
1579 | } | |
f844f9eb | 1580 | #endif /* FIPS_MODULE */ |
3f7ce7f1 RL |
1581 | |
1582 | keydata = evp_keymgmt_util_export_to_provider(pk, tmp_keymgmt); | |
1583 | ||
1584 | end: | |
f6aa5774 RL |
1585 | /* |
1586 | * If nothing was exported, |tmp_keymgmt| might point at a freed | |
1587 | * EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for | |
1588 | * the caller either way in that case. | |
1589 | */ | |
b305452f | 1590 | if (keydata == NULL) |
f6aa5774 RL |
1591 | tmp_keymgmt = NULL; |
1592 | ||
1593 | if (keymgmt != NULL) | |
1594 | *keymgmt = tmp_keymgmt; | |
1595 | ||
1596 | EVP_KEYMGMT_free(allocated_keymgmt); | |
b305452f | 1597 | return keydata; |
f6aa5774 | 1598 | } |
badf51c8 | 1599 | |
f844f9eb | 1600 | #ifndef FIPS_MODULE |
acb90ba8 | 1601 | int evp_pkey_downgrade(EVP_PKEY *pk) |
badf51c8 | 1602 | { |
acb90ba8 RL |
1603 | EVP_KEYMGMT *keymgmt = pk->keymgmt; |
1604 | void *keydata = pk->keydata; | |
1605 | int type = pk->save_type; | |
1606 | const char *keytype = NULL; | |
badf51c8 | 1607 | |
acb90ba8 RL |
1608 | /* If this isn't a provider side key, we're done */ |
1609 | if (keymgmt == NULL) | |
1610 | return 1; | |
1611 | ||
1612 | /* Get the key type name for error reporting */ | |
1613 | if (type != EVP_PKEY_NONE) | |
1614 | keytype = OBJ_nid2sn(type); | |
1615 | else | |
1616 | keytype = | |
1617 | evp_first_name(EVP_KEYMGMT_provider(keymgmt), keymgmt->name_id); | |
badf51c8 RL |
1618 | |
1619 | /* | |
acb90ba8 RL |
1620 | * |save_type| was set when any of the EVP_PKEY_set_type functions |
1621 | * was called. It was set to EVP_PKEY_NONE if the key type wasn't | |
1622 | * recognised to be any of the legacy key types, and the downgrade | |
1623 | * isn't possible. | |
badf51c8 | 1624 | */ |
acb90ba8 RL |
1625 | if (type == EVP_PKEY_NONE) { |
1626 | ERR_raise_data(ERR_LIB_EVP, EVP_R_UNKNOWN_KEY_TYPE, | |
1627 | "key type = %s, can't downgrade", keytype); | |
1628 | return 0; | |
badf51c8 RL |
1629 | } |
1630 | ||
acb90ba8 RL |
1631 | /* |
1632 | * To be able to downgrade, we steal the provider side "origin" keymgmt | |
1633 | * and keydata. We've already grabbed the pointers, so all we need to | |
1634 | * do is clear those pointers in |pk| and then call evp_pkey_free_it(). | |
1635 | * That way, we can restore |pk| if we need to. | |
1636 | */ | |
1637 | pk->keymgmt = NULL; | |
1638 | pk->keydata = NULL; | |
1639 | evp_pkey_free_it(pk); | |
1640 | if (EVP_PKEY_set_type(pk, type)) { | |
1641 | /* If the key is typed but empty, we're done */ | |
49276c35 RL |
1642 | if (keydata == NULL) { |
1643 | /* We're dropping the EVP_KEYMGMT */ | |
1644 | EVP_KEYMGMT_free(keymgmt); | |
acb90ba8 | 1645 | return 1; |
49276c35 | 1646 | } |
badf51c8 | 1647 | |
acb90ba8 RL |
1648 | if (pk->ameth->import_from == NULL) { |
1649 | ERR_raise_data(ERR_LIB_EVP, EVP_R_NO_IMPORT_FUNCTION, | |
1650 | "key type = %s", keytype); | |
629c72db | 1651 | } else { |
acb90ba8 | 1652 | /* |
629c72db MC |
1653 | * We perform the export in the same libctx as the keymgmt that we |
1654 | * are using. | |
acb90ba8 | 1655 | */ |
629c72db MC |
1656 | OPENSSL_CTX *libctx = ossl_provider_library_context(keymgmt->prov); |
1657 | EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk, NULL); | |
1658 | if (pctx == NULL) | |
1659 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
1660 | ||
1661 | if (pctx != NULL | |
1662 | && evp_keymgmt_export(keymgmt, keydata, | |
1663 | OSSL_KEYMGMT_SELECT_ALL, | |
1664 | pk->ameth->import_from, pctx)) { | |
1665 | /* | |
1666 | * Save the provider side data in the operation cache, so they'll | |
1667 | * find it again. evp_pkey_free_it() cleared the cache, so it's | |
1668 | * safe to assume slot zero is free. | |
1669 | * Note that evp_keymgmt_util_cache_keydata() increments keymgmt's | |
1670 | * reference count. | |
1671 | */ | |
1672 | evp_keymgmt_util_cache_keydata(pk, 0, keymgmt, keydata); | |
1673 | EVP_PKEY_CTX_free(pctx); | |
1674 | ||
1675 | /* Synchronize the dirty count */ | |
1676 | pk->dirty_cnt_copy = pk->ameth->dirty_cnt(pk); | |
1677 | ||
1678 | /* evp_keymgmt_export() increased the refcount... */ | |
1679 | EVP_KEYMGMT_free(keymgmt); | |
1680 | return 1; | |
1681 | } | |
1682 | EVP_PKEY_CTX_free(pctx); | |
badf51c8 RL |
1683 | } |
1684 | ||
acb90ba8 RL |
1685 | ERR_raise_data(ERR_LIB_EVP, EVP_R_KEYMGMT_EXPORT_FAILURE, |
1686 | "key type = %s", keytype); | |
badf51c8 RL |
1687 | } |
1688 | ||
badf51c8 | 1689 | /* |
acb90ba8 RL |
1690 | * Something went wrong. This could for example happen if the keymgmt |
1691 | * turns out to be an HSM implementation that refuses to let go of some | |
1692 | * of the key data, typically the private bits. In this case, we restore | |
1693 | * the provider side internal "origin" and leave it at that. | |
badf51c8 | 1694 | */ |
acb90ba8 RL |
1695 | if (!ossl_assert(EVP_PKEY_set_type_by_keymgmt(pk, keymgmt))) { |
1696 | /* This should not be impossible */ | |
1697 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1698 | return 0; | |
1699 | } | |
49276c35 RL |
1700 | /* EVP_PKEY_set_type_by_keymgmt() increased the refcount... */ |
1701 | EVP_KEYMGMT_free(keymgmt); | |
acb90ba8 RL |
1702 | pk->keydata = keydata; |
1703 | evp_keymgmt_util_cache_keyinfo(pk); | |
1704 | return 0; /* No downgrade, but at least the key is restored */ | |
badf51c8 | 1705 | } |
f844f9eb | 1706 | #endif /* FIPS_MODULE */ |
96ebe52e SL |
1707 | |
1708 | const OSSL_PARAM *EVP_PKEY_gettable_params(EVP_PKEY *pkey) | |
1709 | { | |
1710 | if (pkey == NULL | |
1711 | || pkey->keymgmt == NULL | |
1712 | || pkey->keydata == NULL) | |
1713 | return 0; | |
1714 | return evp_keymgmt_gettable_params(pkey->keymgmt); | |
1715 | } | |
1716 | ||
96ebe52e SL |
1717 | int EVP_PKEY_get_bn_param(EVP_PKEY *pkey, const char *key_name, BIGNUM **bn) |
1718 | { | |
1719 | int ret = 0; | |
1720 | OSSL_PARAM params[2]; | |
1721 | unsigned char buffer[2048]; | |
96ebe52e SL |
1722 | unsigned char *buf = NULL; |
1723 | size_t buf_sz = 0; | |
1724 | ||
1725 | if (pkey == NULL | |
1726 | || pkey->keymgmt == NULL | |
1727 | || pkey->keydata == NULL | |
1728 | || key_name == NULL | |
1729 | || bn == NULL) | |
1730 | return 0; | |
1731 | ||
1732 | memset(buffer, 0, sizeof(buffer)); | |
1733 | params[0] = OSSL_PARAM_construct_BN(key_name, buffer, sizeof(buffer)); | |
96ebe52e SL |
1734 | params[1] = OSSL_PARAM_construct_end(); |
1735 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) { | |
99ea4f02 | 1736 | if (!OSSL_PARAM_modified(params) || params[0].return_size == 0) |
96ebe52e SL |
1737 | return 0; |
1738 | buf_sz = params[0].return_size; | |
1739 | /* | |
1740 | * If it failed because the buffer was too small then allocate the | |
1741 | * required buffer size and retry. | |
1742 | */ | |
1743 | buf = OPENSSL_zalloc(buf_sz); | |
1744 | if (buf == NULL) | |
1745 | return 0; | |
1746 | params[0].data = buf; | |
1747 | params[0].data_size = buf_sz; | |
1748 | ||
1749 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) | |
1750 | goto err; | |
1751 | } | |
1752 | /* Fail if the param was not found */ | |
99ea4f02 | 1753 | if (!OSSL_PARAM_modified(params)) |
96ebe52e SL |
1754 | goto err; |
1755 | ret = OSSL_PARAM_get_BN(params, bn); | |
1756 | err: | |
1757 | OPENSSL_free(buf); | |
1758 | return ret; | |
1759 | } | |
1760 | ||
1761 | int EVP_PKEY_get_octet_string_param(EVP_PKEY *pkey, const char *key_name, | |
1762 | unsigned char *buf, size_t max_buf_sz, | |
1763 | size_t *out_sz) | |
1764 | { | |
1765 | OSSL_PARAM params[2]; | |
96ebe52e SL |
1766 | |
1767 | if (pkey == NULL | |
1768 | || pkey->keymgmt == NULL | |
1769 | || pkey->keydata == NULL | |
1770 | || key_name == NULL) | |
1771 | return 0; | |
1772 | ||
1773 | params[0] = OSSL_PARAM_construct_octet_string(key_name, buf, max_buf_sz); | |
96ebe52e | 1774 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
1775 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
1776 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
1777 | return 0; |
1778 | if (out_sz != NULL) | |
1779 | *out_sz = params[0].return_size; | |
1780 | return 1; | |
1781 | } | |
1782 | ||
1783 | int EVP_PKEY_get_utf8_string_param(EVP_PKEY *pkey, const char *key_name, | |
1784 | char *str, size_t max_buf_sz, | |
1785 | size_t *out_sz) | |
1786 | { | |
1787 | OSSL_PARAM params[2]; | |
96ebe52e SL |
1788 | |
1789 | if (pkey == NULL | |
1790 | || pkey->keymgmt == NULL | |
1791 | || pkey->keydata == NULL | |
1792 | || key_name == NULL) | |
1793 | return 0; | |
1794 | ||
1795 | params[0] = OSSL_PARAM_construct_utf8_string(key_name, str, max_buf_sz); | |
96ebe52e | 1796 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
1797 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
1798 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
1799 | return 0; |
1800 | if (out_sz != NULL) | |
1801 | *out_sz = params[0].return_size; | |
1802 | return 1; | |
1803 | } | |
1804 | ||
1805 | int EVP_PKEY_get_int_param(EVP_PKEY *pkey, const char *key_name, int *out) | |
1806 | { | |
1807 | OSSL_PARAM params[2]; | |
96ebe52e SL |
1808 | |
1809 | if (pkey == NULL | |
1810 | || pkey->keymgmt == NULL | |
1811 | || pkey->keydata == NULL | |
1812 | || key_name == NULL) | |
1813 | return 0; | |
1814 | ||
1815 | params[0] = OSSL_PARAM_construct_int(key_name, out); | |
96ebe52e | 1816 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
1817 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
1818 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
1819 | return 0; |
1820 | return 1; | |
1821 | } | |
1822 | ||
1823 | int EVP_PKEY_get_size_t_param(EVP_PKEY *pkey, const char *key_name, size_t *out) | |
1824 | { | |
1825 | OSSL_PARAM params[2]; | |
96ebe52e SL |
1826 | |
1827 | if (pkey == NULL | |
1828 | || pkey->keymgmt == NULL | |
1829 | || pkey->keydata == NULL | |
1830 | || key_name == NULL) | |
1831 | return 0; | |
1832 | ||
1833 | params[0] = OSSL_PARAM_construct_size_t(key_name, out); | |
96ebe52e | 1834 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
1835 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
1836 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
1837 | return 0; |
1838 | return 1; | |
1839 | } |