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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) { |
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)) { | |
c74aaa39 | 159 | if (EVP_PKEY_parameters_eq(to, from) == 1) |
f72f00d4 DSH |
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 */ | |
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 MC |
337 | |
338 | static EVP_PKEY *new_raw_key_int(OPENSSL_CTX *libctx, | |
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) { | |
393 | EVPerr(0, EVP_R_KEY_SETUP_FAILED); | |
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) { | |
409 | EVPerr(0, 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) { | |
423 | EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
424 | goto err; | |
425 | } | |
a08802ce | 426 | |
1c4f340d MC |
427 | if (!pkey->ameth->set_priv_key(pkey, key, len)) { |
428 | EVPerr(0, EVP_R_KEY_SETUP_FAILED); | |
429 | goto err; | |
430 | } | |
431 | } else { | |
432 | if (pkey->ameth->set_pub_key == NULL) { | |
433 | EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
434 | goto err; | |
435 | } | |
a08802ce | 436 | |
1c4f340d MC |
437 | if (!pkey->ameth->set_pub_key(pkey, key, len)) { |
438 | EVPerr(0, EVP_R_KEY_SETUP_FAILED); | |
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 | |
d8652be0 MC |
453 | EVP_PKEY *EVP_PKEY_new_raw_private_key_ex(OPENSSL_CTX *libctx, |
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 | |
d8652be0 MC |
469 | EVP_PKEY *EVP_PKEY_new_raw_public_key_ex(OPENSSL_CTX *libctx, |
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) { | |
527 | EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
528 | return 0; | |
529 | } | |
530 | ||
531 | if (pkey->ameth->get_priv_key == NULL) { | |
532 | EVPerr(0, 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)) { | |
c19d8978 | 537 | EVPerr(0, 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) { | |
559 | EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
560 | return 0; | |
561 | } | |
562 | ||
0d124b0a MC |
563 | if (pkey->ameth->get_pub_key == NULL) { |
564 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY, | |
565 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
566 | return 0; | |
567 | } | |
568 | ||
569 | if (!pkey->ameth->get_pub_key(pkey, pub, len)) { | |
570 | EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY, EVP_R_GET_RAW_KEY_FAILED); | |
571 | return 0; | |
572 | } | |
573 | ||
574 | return 1; | |
575 | } | |
576 | ||
a540ef90 MC |
577 | static EVP_PKEY *new_cmac_key_int(const unsigned char *priv, size_t len, |
578 | const char *cipher_name, | |
579 | const EVP_CIPHER *cipher, OPENSSL_CTX *libctx, | |
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) { | |
594 | EVPerr(0, EVP_R_KEY_SETUP_FAILED); | |
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)) { | |
603 | EVPerr(0, 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 MC |
621 | if (!EVP_PKEY_fromdata(ctx, &pkey, params)) { |
622 | EVPerr(0, 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 |
a540ef90 | 631 | EVPerr(0, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); |
df6d51e2 | 632 | return NULL; |
e683582b | 633 | # endif |
b3831fbb | 634 | } |
a08802ce | 635 | |
d8652be0 MC |
636 | EVP_PKEY *EVP_PKEY_new_CMAC_key_ex(const unsigned char *priv, size_t len, |
637 | const char *cipher_name, OPENSSL_CTX *libctx, | |
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)) { | |
681 | EVPerr(EVP_F_EVP_PKEY_SET_ALIAS_TYPE, EVP_R_UNSUPPORTED_ALGORITHM); | |
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)) { | |
695 | EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, ERR_R_ENGINE_LIB); | |
696 | return 0; | |
697 | } | |
698 | if (ENGINE_get_pkey_meth(e, pkey->type) == NULL) { | |
699 | ENGINE_finish(e); | |
700 | EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, EVP_R_UNSUPPORTED_ALGORITHM); | |
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) { | |
750 | EVPerr(EVP_F_EVP_PKEY_GET0_HMAC, EVP_R_EXPECTING_AN_HMAC_KEY); | |
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) { | |
763 | EVPerr(EVP_F_EVP_PKEY_GET0_POLY1305, EVP_R_EXPECTING_A_POLY1305_KEY); | |
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) { | |
778 | EVPerr(EVP_F_EVP_PKEY_GET0_SIPHASH, EVP_R_EXPECTING_A_SIPHASH_KEY); | |
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_RSA |
c7cb16a8 | 788 | int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) |
52664f50 | 789 | { |
0f113f3e MC |
790 | int ret = EVP_PKEY_assign_RSA(pkey, key); |
791 | if (ret) | |
792 | RSA_up_ref(key); | |
793 | return ret; | |
52664f50 DSH |
794 | } |
795 | ||
9fdcc21f | 796 | RSA *EVP_PKEY_get0_RSA(const EVP_PKEY *pkey) |
0f113f3e | 797 | { |
acb90ba8 RL |
798 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
799 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
800 | return NULL; | |
801 | } | |
465a58b1 | 802 | if (pkey->type != EVP_PKEY_RSA && pkey->type != EVP_PKEY_RSA_PSS) { |
2872dbe1 | 803 | EVPerr(EVP_F_EVP_PKEY_GET0_RSA, EVP_R_EXPECTING_AN_RSA_KEY); |
0f113f3e MC |
804 | return NULL; |
805 | } | |
0f113f3e | 806 | return pkey->pkey.rsa; |
f769ce3e | 807 | } |
2872dbe1 DSH |
808 | |
809 | RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey) | |
810 | { | |
811 | RSA *ret = EVP_PKEY_get0_RSA(pkey); | |
812 | if (ret != NULL) | |
813 | RSA_up_ref(ret); | |
814 | return ret; | |
815 | } | |
e683582b | 816 | # endif |
f769ce3e | 817 | |
e683582b | 818 | # ifndef OPENSSL_NO_DSA |
9fdcc21f | 819 | DSA *EVP_PKEY_get0_DSA(const EVP_PKEY *pkey) |
0f113f3e | 820 | { |
acb90ba8 RL |
821 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
822 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
823 | return NULL; | |
824 | } | |
0f113f3e | 825 | if (pkey->type != EVP_PKEY_DSA) { |
2872dbe1 | 826 | EVPerr(EVP_F_EVP_PKEY_GET0_DSA, EVP_R_EXPECTING_A_DSA_KEY); |
0f113f3e MC |
827 | return NULL; |
828 | } | |
0f113f3e | 829 | return pkey->pkey.dsa; |
f769ce3e | 830 | } |
2872dbe1 | 831 | |
b03ec3b5 SL |
832 | int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) |
833 | { | |
834 | int ret = EVP_PKEY_assign_DSA(pkey, key); | |
835 | if (ret) | |
836 | DSA_up_ref(key); | |
837 | return ret; | |
838 | } | |
2872dbe1 DSH |
839 | DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) |
840 | { | |
841 | DSA *ret = EVP_PKEY_get0_DSA(pkey); | |
842 | if (ret != NULL) | |
843 | DSA_up_ref(ret); | |
844 | return ret; | |
845 | } | |
b03ec3b5 | 846 | # endif /* OPENSSL_NO_DSA */ |
f844f9eb | 847 | #endif /* FIPS_MODULE */ |
f769ce3e | 848 | |
f844f9eb | 849 | #ifndef FIPS_MODULE |
e683582b | 850 | # ifndef OPENSSL_NO_EC |
14a7cfb3 | 851 | int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) |
4d94ae00 | 852 | { |
0f113f3e MC |
853 | int ret = EVP_PKEY_assign_EC_KEY(pkey, key); |
854 | if (ret) | |
855 | EC_KEY_up_ref(key); | |
856 | return ret; | |
4d94ae00 BM |
857 | } |
858 | ||
9fdcc21f | 859 | EC_KEY *EVP_PKEY_get0_EC_KEY(const EVP_PKEY *pkey) |
4d94ae00 | 860 | { |
acb90ba8 RL |
861 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
862 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
863 | return NULL; | |
864 | } | |
f4e4382c | 865 | if (EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) { |
2872dbe1 | 866 | EVPerr(EVP_F_EVP_PKEY_GET0_EC_KEY, EVP_R_EXPECTING_A_EC_KEY); |
0f113f3e MC |
867 | return NULL; |
868 | } | |
0f113f3e | 869 | return pkey->pkey.ec; |
4d94ae00 | 870 | } |
2872dbe1 DSH |
871 | |
872 | EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) | |
873 | { | |
874 | EC_KEY *ret = EVP_PKEY_get0_EC_KEY(pkey); | |
875 | if (ret != NULL) | |
876 | EC_KEY_up_ref(ret); | |
877 | return ret; | |
878 | } | |
7c664b1f | 879 | |
25b16562 | 880 | static ECX_KEY *evp_pkey_get0_ECX_KEY(const EVP_PKEY *pkey, int type) |
7c664b1f RL |
881 | { |
882 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { | |
883 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
884 | return NULL; | |
885 | } | |
886 | if (EVP_PKEY_base_id(pkey) != type) { | |
887 | ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_ECX_KEY); | |
888 | return NULL; | |
889 | } | |
890 | return pkey->pkey.ecx; | |
891 | } | |
892 | ||
25b16562 | 893 | static ECX_KEY *evp_pkey_get1_ECX_KEY(EVP_PKEY *pkey, int type) |
7c664b1f | 894 | { |
25b16562 | 895 | ECX_KEY *ret = evp_pkey_get0_ECX_KEY(pkey, type); |
7c664b1f RL |
896 | if (ret != NULL) |
897 | ecx_key_up_ref(ret); | |
898 | return ret; | |
899 | } | |
900 | ||
901 | # define IMPLEMENT_ECX_VARIANT(NAME) \ | |
25b16562 | 902 | ECX_KEY *evp_pkey_get1_##NAME(EVP_PKEY *pkey) \ |
7c664b1f | 903 | { \ |
25b16562 | 904 | return evp_pkey_get1_ECX_KEY(pkey, EVP_PKEY_##NAME); \ |
7c664b1f RL |
905 | } |
906 | IMPLEMENT_ECX_VARIANT(X25519) | |
907 | IMPLEMENT_ECX_VARIANT(X448) | |
908 | IMPLEMENT_ECX_VARIANT(ED25519) | |
909 | IMPLEMENT_ECX_VARIANT(ED448) | |
910 | ||
e683582b | 911 | # endif |
4d94ae00 | 912 | |
e683582b | 913 | # ifndef OPENSSL_NO_DH |
52664f50 | 914 | |
c7cb16a8 | 915 | int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) |
52664f50 | 916 | { |
32c869ff MC |
917 | int type = DH_get0_q(key) == NULL ? EVP_PKEY_DH : EVP_PKEY_DHX; |
918 | int ret = EVP_PKEY_assign(pkey, type, key); | |
919 | ||
0f113f3e MC |
920 | if (ret) |
921 | DH_up_ref(key); | |
922 | return ret; | |
52664f50 DSH |
923 | } |
924 | ||
9fdcc21f | 925 | DH *EVP_PKEY_get0_DH(const EVP_PKEY *pkey) |
0f113f3e | 926 | { |
acb90ba8 RL |
927 | if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) { |
928 | ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY); | |
929 | return NULL; | |
930 | } | |
0f113f3e | 931 | if (pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) { |
2872dbe1 | 932 | EVPerr(EVP_F_EVP_PKEY_GET0_DH, EVP_R_EXPECTING_A_DH_KEY); |
0f113f3e MC |
933 | return NULL; |
934 | } | |
0f113f3e | 935 | return pkey->pkey.dh; |
f769ce3e | 936 | } |
2872dbe1 DSH |
937 | |
938 | DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) | |
939 | { | |
940 | DH *ret = EVP_PKEY_get0_DH(pkey); | |
941 | if (ret != NULL) | |
942 | DH_up_ref(ret); | |
943 | return ret; | |
944 | } | |
e683582b | 945 | # endif |
f769ce3e | 946 | |
6b691a5c | 947 | int EVP_PKEY_type(int type) |
0f113f3e MC |
948 | { |
949 | int ret; | |
950 | const EVP_PKEY_ASN1_METHOD *ameth; | |
951 | ENGINE *e; | |
952 | ameth = EVP_PKEY_asn1_find(&e, type); | |
953 | if (ameth) | |
954 | ret = ameth->pkey_id; | |
955 | else | |
956 | ret = NID_undef; | |
e683582b | 957 | # ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 958 | ENGINE_finish(e); |
e683582b | 959 | # endif |
0f113f3e MC |
960 | return ret; |
961 | } | |
d02b48c6 | 962 | |
7f57b076 | 963 | int EVP_PKEY_id(const EVP_PKEY *pkey) |
0f113f3e MC |
964 | { |
965 | return pkey->type; | |
966 | } | |
7f57b076 DSH |
967 | |
968 | int EVP_PKEY_base_id(const EVP_PKEY *pkey) | |
0f113f3e MC |
969 | { |
970 | return EVP_PKEY_type(pkey->type); | |
971 | } | |
7f57b076 | 972 | |
50914496 RL |
973 | #ifndef FIPS_MODULE |
974 | int evp_pkey_name2type(const char *name) | |
975 | { | |
976 | /* | |
977 | * These hard coded cases are pure hackery to get around the fact | |
978 | * that names in crypto/objects/objects.txt are a mess. There is | |
979 | * no "EC", and "RSA" leads to the NID for 2.5.8.1.1, an OID that's | |
980 | * fallen out in favor of { pkcs-1 1 }, i.e. 1.2.840.113549.1.1.1, | |
981 | * the NID of which is used for EVP_PKEY_RSA. Strangely enough, | |
982 | * "DSA" is accurate... but still, better be safe and hard-code | |
983 | * names that we know. | |
984 | * On a similar topic, EVP_PKEY_type(EVP_PKEY_SM2) will result in | |
985 | * EVP_PKEY_EC, because of aliasing. | |
986 | * TODO Clean this away along with all other #legacy support. | |
987 | */ | |
988 | int type = NID_undef; | |
989 | ||
990 | if (strcasecmp(name, "RSA") == 0) | |
991 | type = EVP_PKEY_RSA; | |
992 | else if (strcasecmp(name, "RSA-PSS") == 0) | |
993 | type = EVP_PKEY_RSA_PSS; | |
994 | else if (strcasecmp(name, "EC") == 0) | |
995 | type = EVP_PKEY_EC; | |
996 | else if (strcasecmp(name, "ED25519") == 0) | |
997 | type = EVP_PKEY_ED25519; | |
998 | else if (strcasecmp(name, "ED448") == 0) | |
999 | type = EVP_PKEY_ED448; | |
1000 | else if (strcasecmp(name, "X25519") == 0) | |
1001 | type = EVP_PKEY_X25519; | |
1002 | else if (strcasecmp(name, "X448") == 0) | |
1003 | type = EVP_PKEY_X448; | |
1004 | else if (strcasecmp(name, "SM2") == 0) | |
1005 | type = EVP_PKEY_SM2; | |
1006 | else if (strcasecmp(name, "DH") == 0) | |
1007 | type = EVP_PKEY_DH; | |
1008 | else if (strcasecmp(name, "X9.42 DH") == 0) | |
1009 | type = EVP_PKEY_DHX; | |
1010 | else if (strcasecmp(name, "DSA") == 0) | |
1011 | type = EVP_PKEY_DSA; | |
1012 | ||
1013 | if (type == NID_undef) | |
1014 | type = EVP_PKEY_type(OBJ_sn2nid(name)); | |
1015 | if (type == NID_undef) | |
1016 | type = EVP_PKEY_type(OBJ_ln2nid(name)); | |
1017 | ||
1018 | return type; | |
1019 | } | |
1020 | #endif | |
1021 | ||
4f76d62f RL |
1022 | int EVP_PKEY_is_a(const EVP_PKEY *pkey, const char *name) |
1023 | { | |
f844f9eb | 1024 | #ifndef FIPS_MODULE |
4f76d62f | 1025 | if (pkey->keymgmt == NULL) { |
50914496 | 1026 | int type = evp_pkey_name2type(name); |
4f76d62f | 1027 | |
50914496 | 1028 | return pkey->type == type; |
4f76d62f RL |
1029 | } |
1030 | #endif | |
1031 | return EVP_KEYMGMT_is_a(pkey->keymgmt, name); | |
1032 | } | |
1033 | ||
ae12eac0 RL |
1034 | void EVP_PKEY_typenames_do_all(const EVP_PKEY *pkey, |
1035 | void (*fn)(const char *name, void *data), | |
1036 | void *data) | |
1037 | { | |
1038 | if (!evp_pkey_is_typed(pkey)) | |
1039 | return; | |
1040 | ||
1041 | if (!evp_pkey_is_provided(pkey)) { | |
1042 | const char *name = OBJ_nid2sn(EVP_PKEY_id(pkey)); | |
1043 | ||
1044 | fn(name, data); | |
1045 | return; | |
1046 | } | |
1047 | EVP_KEYMGMT_names_do_all(pkey->keymgmt, fn, data); | |
1048 | } | |
1049 | ||
4f76d62f RL |
1050 | int EVP_PKEY_can_sign(const EVP_PKEY *pkey) |
1051 | { | |
1052 | if (pkey->keymgmt == NULL) { | |
1053 | switch (EVP_PKEY_base_id(pkey)) { | |
1054 | case EVP_PKEY_RSA: | |
1055 | return 1; | |
1056 | #ifndef OPENSSL_NO_DSA | |
1057 | case EVP_PKEY_DSA: | |
1058 | return 1; | |
1059 | #endif | |
1060 | #ifndef OPENSSL_NO_EC | |
1061 | case EVP_PKEY_ED25519: | |
1062 | case EVP_PKEY_ED448: | |
1063 | return 1; | |
1064 | case EVP_PKEY_EC: /* Including SM2 */ | |
1065 | return EC_KEY_can_sign(pkey->pkey.ec); | |
1066 | #endif | |
1067 | default: | |
1068 | break; | |
1069 | } | |
1070 | } else { | |
1071 | const OSSL_PROVIDER *prov = EVP_KEYMGMT_provider(pkey->keymgmt); | |
1072 | OPENSSL_CTX *libctx = ossl_provider_library_context(prov); | |
1073 | const char *supported_sig = | |
1074 | pkey->keymgmt->query_operation_name != NULL | |
1075 | ? pkey->keymgmt->query_operation_name(OSSL_OP_SIGNATURE) | |
1076 | : evp_first_name(prov, pkey->keymgmt->name_id); | |
1077 | EVP_SIGNATURE *signature = NULL; | |
1078 | ||
1079 | signature = EVP_SIGNATURE_fetch(libctx, supported_sig, NULL); | |
1080 | if (signature != NULL) { | |
1081 | EVP_SIGNATURE_free(signature); | |
1082 | return 1; | |
1083 | } | |
1084 | } | |
1085 | return 0; | |
1086 | } | |
d02b48c6 | 1087 | |
c2041da8 RL |
1088 | #ifndef OPENSSL_NO_EC |
1089 | /* | |
1090 | * TODO rewrite when we have proper data extraction functions | |
1091 | * Note: an octet pointer would be desirable! | |
1092 | */ | |
1093 | static OSSL_CALLBACK get_ec_curve_name_cb; | |
1094 | static int get_ec_curve_name_cb(const OSSL_PARAM params[], void *arg) | |
1095 | { | |
1096 | const OSSL_PARAM *p = NULL; | |
1097 | ||
11a1b341 | 1098 | if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_GROUP_NAME)) != NULL) |
c2041da8 RL |
1099 | return OSSL_PARAM_get_utf8_string(p, arg, 0); |
1100 | ||
1101 | /* If there is no curve name, this is not an EC key */ | |
1102 | return 0; | |
1103 | } | |
1104 | ||
1105 | int evp_pkey_get_EC_KEY_curve_nid(const EVP_PKEY *pkey) | |
1106 | { | |
1107 | int ret = NID_undef; | |
1108 | ||
1109 | if (pkey->keymgmt == NULL) { | |
1110 | if (EVP_PKEY_base_id(pkey) == EVP_PKEY_EC) { | |
1111 | EC_KEY *ec = EVP_PKEY_get0_EC_KEY(pkey); | |
1112 | ||
1113 | ret = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec)); | |
1114 | } | |
1115 | } else if (EVP_PKEY_is_a(pkey, "EC") || EVP_PKEY_is_a(pkey, "SM2")) { | |
1116 | char *curve_name = NULL; | |
1117 | ||
655f73ce RL |
1118 | ret = evp_keymgmt_util_export(pkey, |
1119 | OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS, | |
1120 | get_ec_curve_name_cb, &curve_name); | |
c2041da8 RL |
1121 | if (ret) |
1122 | ret = ec_curve_name2nid(curve_name); | |
1123 | OPENSSL_free(curve_name); | |
1124 | } | |
1125 | ||
1126 | return ret; | |
1127 | } | |
1128 | #endif | |
1129 | ||
f1299839 RL |
1130 | static int print_reset_indent(BIO **out, int pop_f_prefix, long saved_indent) |
1131 | { | |
1132 | BIO_set_indent(*out, saved_indent); | |
1133 | if (pop_f_prefix) { | |
1134 | BIO *next = BIO_pop(*out); | |
1135 | ||
1136 | BIO_free(*out); | |
1137 | *out = next; | |
1138 | } | |
1139 | return 1; | |
1140 | } | |
1141 | ||
1142 | static int print_set_indent(BIO **out, int *pop_f_prefix, long *saved_indent, | |
1143 | long indent) | |
1144 | { | |
1145 | *pop_f_prefix = 0; | |
1146 | *saved_indent = 0; | |
1147 | if (indent > 0) { | |
1148 | long i = BIO_get_indent(*out); | |
1149 | ||
1150 | *saved_indent = (i < 0 ? 0 : i); | |
1151 | if (BIO_set_indent(*out, indent) <= 0) { | |
1152 | if ((*out = BIO_push(BIO_new(BIO_f_prefix()), *out)) == NULL) | |
1153 | return 0; | |
1154 | *pop_f_prefix = 1; | |
1155 | } | |
1156 | if (BIO_set_indent(*out, indent) <= 0) { | |
1157 | print_reset_indent(out, *pop_f_prefix, *saved_indent); | |
1158 | return 0; | |
1159 | } | |
1160 | } | |
1161 | return 1; | |
1162 | } | |
1163 | ||
35208f36 | 1164 | static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent, |
0f113f3e MC |
1165 | const char *kstr) |
1166 | { | |
5310a4e6 P |
1167 | return BIO_indent(out, indent, 128) |
1168 | && BIO_printf(out, "%s algorithm \"%s\" unsupported\n", | |
1169 | kstr, OBJ_nid2ln(pkey->type)) > 0; | |
0f113f3e | 1170 | } |
35208f36 | 1171 | |
f1299839 | 1172 | static int print_pkey(const EVP_PKEY *pkey, BIO *out, int indent, |
97bb8dff RL |
1173 | int selection /* For provided encoding */, |
1174 | OPENSSL_CTX *libctx /* For provided encoding */, | |
ece9304c | 1175 | const char *propquery /* For provided encoding */, |
f1299839 RL |
1176 | int (*legacy_print)(BIO *out, const EVP_PKEY *pkey, |
1177 | int indent, ASN1_PCTX *pctx), | |
1178 | ASN1_PCTX *legacy_pctx /* For legacy print */) | |
0f113f3e | 1179 | { |
f1299839 RL |
1180 | int pop_f_prefix; |
1181 | long saved_indent; | |
ece9304c | 1182 | OSSL_ENCODER_CTX *ctx = NULL; |
f1299839 RL |
1183 | int ret = -2; /* default to unsupported */ |
1184 | ||
1185 | if (!print_set_indent(&out, &pop_f_prefix, &saved_indent, indent)) | |
1186 | return 0; | |
54c1711f | 1187 | |
97bb8dff RL |
1188 | ctx = OSSL_ENCODER_CTX_new_by_EVP_PKEY(pkey, "TEXT", selection, |
1189 | libctx, propquery); | |
1190 | if (OSSL_ENCODER_CTX_get_num_encoders(ctx) != 0) | |
ece9304c RL |
1191 | ret = OSSL_ENCODER_to_bio(ctx, out); |
1192 | OSSL_ENCODER_CTX_free(ctx); | |
54c1711f RL |
1193 | |
1194 | if (ret != -2) | |
f1299839 | 1195 | goto end; |
54c1711f RL |
1196 | |
1197 | /* legacy fallback */ | |
f1299839 RL |
1198 | if (legacy_print != NULL) |
1199 | ret = legacy_print(out, pkey, 0, legacy_pctx); | |
1200 | else | |
1201 | ret = unsup_alg(out, pkey, 0, "Public Key"); | |
0f113f3e | 1202 | |
f1299839 RL |
1203 | end: |
1204 | print_reset_indent(&out, pop_f_prefix, saved_indent); | |
1205 | return ret; | |
1206 | } | |
1207 | ||
1208 | int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, | |
1209 | int indent, ASN1_PCTX *pctx) | |
1210 | { | |
97bb8dff RL |
1211 | return print_pkey(pkey, out, indent, |
1212 | OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS | |
1213 | | OSSL_KEYMGMT_SELECT_PUBLIC_KEY, | |
1214 | NULL, NULL, | |
f1299839 RL |
1215 | (pkey->ameth != NULL ? pkey->ameth->pub_print : NULL), |
1216 | pctx); | |
0f113f3e | 1217 | } |
35208f36 DSH |
1218 | |
1219 | int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
1220 | int indent, ASN1_PCTX *pctx) |
1221 | { | |
97bb8dff RL |
1222 | return print_pkey(pkey, out, indent, |
1223 | OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS | |
1224 | | OSSL_KEYMGMT_SELECT_KEYPAIR, | |
1225 | NULL, NULL, | |
f1299839 RL |
1226 | (pkey->ameth != NULL ? pkey->ameth->priv_print : NULL), |
1227 | pctx); | |
0f113f3e | 1228 | } |
35208f36 DSH |
1229 | |
1230 | int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, | |
0f113f3e MC |
1231 | int indent, ASN1_PCTX *pctx) |
1232 | { | |
97bb8dff RL |
1233 | return print_pkey(pkey, out, indent, OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS, |
1234 | NULL, NULL, | |
f1299839 RL |
1235 | (pkey->ameth != NULL ? pkey->ameth->param_print : NULL), |
1236 | pctx); | |
0f113f3e | 1237 | } |
03919683 | 1238 | |
ead0d234 RL |
1239 | static int legacy_asn1_ctrl_to_param(EVP_PKEY *pkey, int op, |
1240 | int arg1, void *arg2) | |
1241 | { | |
3c6ed955 | 1242 | if (pkey->keymgmt == NULL) |
ead0d234 RL |
1243 | return 0; |
1244 | switch (op) { | |
1245 | case ASN1_PKEY_CTRL_DEFAULT_MD_NID: | |
1246 | { | |
1247 | char mdname[80] = ""; | |
ead0d234 RL |
1248 | int rv = EVP_PKEY_get_default_digest_name(pkey, mdname, |
1249 | sizeof(mdname)); | |
1250 | ||
90ef39f4 RL |
1251 | if (rv > 0) { |
1252 | int nid; | |
1253 | ||
1254 | nid = OBJ_sn2nid(mdname); | |
1255 | if (nid == NID_undef) | |
1256 | nid = OBJ_ln2nid(mdname); | |
1257 | *(int *)arg2 = nid; | |
1258 | } | |
1259 | return rv; | |
ead0d234 RL |
1260 | } |
1261 | default: | |
1262 | return -2; | |
1263 | } | |
1264 | } | |
1265 | ||
5d6aaf8a | 1266 | static int evp_pkey_asn1_ctrl(EVP_PKEY *pkey, int op, int arg1, void *arg2) |
0f113f3e | 1267 | { |
ead0d234 RL |
1268 | if (pkey->ameth == NULL) |
1269 | return legacy_asn1_ctrl_to_param(pkey, op, arg1, arg2); | |
1270 | if (pkey->ameth->pkey_ctrl == NULL) | |
0f113f3e | 1271 | return -2; |
5d6aaf8a DSH |
1272 | return pkey->ameth->pkey_ctrl(pkey, op, arg1, arg2); |
1273 | } | |
1274 | ||
1275 | int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid) | |
1276 | { | |
1277 | return evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 0, pnid); | |
1278 | } | |
1279 | ||
ead0d234 RL |
1280 | int EVP_PKEY_get_default_digest_name(EVP_PKEY *pkey, |
1281 | char *mdname, size_t mdname_sz) | |
1282 | { | |
3b924da0 RL |
1283 | if (pkey->ameth == NULL) |
1284 | return evp_keymgmt_util_get_deflt_digest_name(pkey->keymgmt, | |
1285 | pkey->keydata, | |
1286 | mdname, mdname_sz); | |
ead0d234 RL |
1287 | |
1288 | { | |
1289 | int nid = NID_undef; | |
1290 | int rv = EVP_PKEY_get_default_digest_nid(pkey, &nid); | |
1291 | const char *name = rv > 0 ? OBJ_nid2sn(nid) : NULL; | |
1292 | ||
1293 | if (rv > 0) | |
1294 | OPENSSL_strlcpy(mdname, name, mdname_sz); | |
1295 | return rv; | |
1296 | } | |
1297 | } | |
1298 | ||
ecbb2fca DW |
1299 | int EVP_PKEY_supports_digest_nid(EVP_PKEY *pkey, int nid) |
1300 | { | |
1301 | int rv, default_nid; | |
1302 | ||
1303 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SUPPORTS_MD_NID, nid, NULL); | |
1304 | if (rv == -2) { | |
1305 | /* | |
1306 | * If there is a mandatory default digest and this isn't it, then | |
1307 | * the answer is 'no'. | |
1308 | */ | |
1309 | rv = EVP_PKEY_get_default_digest_nid(pkey, &default_nid); | |
1310 | if (rv == 2) | |
1311 | return (nid == default_nid); | |
1312 | /* zero is an error from EVP_PKEY_get_default_digest_nid() */ | |
1313 | if (rv == 0) | |
1314 | return -1; | |
1315 | } | |
1316 | return rv; | |
1317 | } | |
1318 | ||
5d6aaf8a DSH |
1319 | int EVP_PKEY_set1_tls_encodedpoint(EVP_PKEY *pkey, |
1320 | const unsigned char *pt, size_t ptlen) | |
1321 | { | |
6a9bd929 MC |
1322 | if (pkey->ameth == NULL) { |
1323 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
1324 | ||
1325 | if (pkey->keymgmt == NULL || pkey->keydata == NULL) | |
1326 | return 0; | |
1327 | ||
1328 | params[0] = | |
1329 | OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_TLS_ENCODED_PT, | |
1330 | (unsigned char *)pt, ptlen); | |
1331 | return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params); | |
1332 | } | |
1333 | ||
5d6aaf8a DSH |
1334 | if (ptlen > INT_MAX) |
1335 | return 0; | |
1336 | if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, ptlen, | |
1337 | (void *)pt) <= 0) | |
1338 | return 0; | |
1339 | return 1; | |
1340 | } | |
1341 | ||
1342 | size_t EVP_PKEY_get1_tls_encodedpoint(EVP_PKEY *pkey, unsigned char **ppt) | |
1343 | { | |
1344 | int rv; | |
6a9bd929 MC |
1345 | |
1346 | if (pkey->ameth == NULL) { | |
1347 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
1348 | ||
1349 | if (pkey->keymgmt == NULL || pkey->keydata == NULL) | |
1350 | return 0; | |
1351 | ||
1352 | params[0] = | |
1353 | OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_TLS_ENCODED_PT, | |
1354 | NULL, 0); | |
1355 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) | |
1356 | return 0; | |
1357 | ||
1358 | *ppt = OPENSSL_malloc(params[0].return_size); | |
1359 | if (*ppt == NULL) | |
1360 | return 0; | |
1361 | ||
1362 | params[0] = | |
1363 | OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_TLS_ENCODED_PT, | |
1364 | *ppt, params[0].return_size); | |
1365 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) | |
1366 | return 0; | |
1367 | ||
1368 | return params[0].return_size; | |
1369 | } | |
1370 | ||
1371 | ||
5d6aaf8a DSH |
1372 | rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppt); |
1373 | if (rv <= 0) | |
1374 | return 0; | |
1375 | return rv; | |
0f113f3e | 1376 | } |
e683582b | 1377 | |
f844f9eb | 1378 | #endif /* FIPS_MODULE */ |
e683582b | 1379 | |
f844f9eb | 1380 | /*- All methods below can also be used in FIPS_MODULE */ |
e683582b | 1381 | |
4ce1025a RL |
1382 | static int evp_pkey_reset_unlocked(EVP_PKEY *pk) |
1383 | { | |
1384 | if (pk == NULL) | |
1385 | return 0; | |
1386 | ||
1387 | memset(pk, 0, sizeof(*pk)); | |
1388 | pk->type = EVP_PKEY_NONE; | |
1389 | pk->save_type = EVP_PKEY_NONE; | |
1390 | pk->references = 1; | |
1391 | pk->save_parameters = 1; | |
1392 | return 1; | |
1393 | } | |
1394 | ||
e683582b SL |
1395 | EVP_PKEY *EVP_PKEY_new(void) |
1396 | { | |
1397 | EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret)); | |
1398 | ||
1399 | if (ret == NULL) { | |
1400 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
1401 | return NULL; | |
1402 | } | |
4ce1025a RL |
1403 | |
1404 | if (!evp_pkey_reset_unlocked(ret)) | |
1405 | goto err; | |
1406 | ||
e683582b SL |
1407 | ret->lock = CRYPTO_THREAD_lock_new(); |
1408 | if (ret->lock == NULL) { | |
1409 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
ff1f7cde AT |
1410 | goto err; |
1411 | } | |
f844f9eb | 1412 | #ifndef FIPS_MODULE |
ff1f7cde AT |
1413 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, ret, &ret->ex_data)) { |
1414 | EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE); | |
1415 | goto err; | |
e683582b | 1416 | } |
ff1f7cde | 1417 | #endif |
e683582b | 1418 | return ret; |
ff1f7cde AT |
1419 | |
1420 | err: | |
1421 | CRYPTO_THREAD_lock_free(ret->lock); | |
1422 | OPENSSL_free(ret); | |
1423 | return NULL; | |
e683582b SL |
1424 | } |
1425 | ||
8243d8d1 RL |
1426 | /* |
1427 | * Setup a public key management method. | |
1428 | * | |
1429 | * For legacy keys, either |type| or |str| is expected to have the type | |
1430 | * information. In this case, the setup consists of finding an ASN1 method | |
1431 | * and potentially an ENGINE, and setting those fields in |pkey|. | |
1432 | * | |
1433 | * For provider side keys, |keymgmt| is expected to be non-NULL. In this | |
1434 | * case, the setup consists of setting the |keymgmt| field in |pkey|. | |
1435 | * | |
1436 | * If pkey is NULL just return 1 or 0 if the key management method exists. | |
1437 | */ | |
1438 | ||
1439 | static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str, | |
1440 | int len, EVP_KEYMGMT *keymgmt) | |
1441 | { | |
f844f9eb | 1442 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1443 | const EVP_PKEY_ASN1_METHOD *ameth = NULL; |
1444 | ENGINE **eptr = (e == NULL) ? &e : NULL; | |
1445 | #endif | |
1446 | ||
1447 | /* | |
1448 | * The setups can't set both legacy and provider side methods. | |
1449 | * It is forbidden | |
1450 | */ | |
1451 | if (!ossl_assert(type == EVP_PKEY_NONE || keymgmt == NULL) | |
1452 | || !ossl_assert(e == NULL || keymgmt == NULL)) { | |
1453 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1454 | return 0; | |
1455 | } | |
1456 | ||
1457 | if (pkey != NULL) { | |
1458 | int free_it = 0; | |
1459 | ||
f844f9eb | 1460 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1461 | free_it = free_it || pkey->pkey.ptr != NULL; |
1462 | #endif | |
1463 | free_it = free_it || pkey->keydata != NULL; | |
1464 | if (free_it) | |
1465 | evp_pkey_free_it(pkey); | |
f844f9eb | 1466 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1467 | /* |
1468 | * If key type matches and a method exists then this lookup has | |
1469 | * succeeded once so just indicate success. | |
1470 | */ | |
1471 | if (pkey->type != EVP_PKEY_NONE | |
1472 | && type == pkey->save_type | |
1473 | && pkey->ameth != NULL) | |
1474 | return 1; | |
1475 | # ifndef OPENSSL_NO_ENGINE | |
1476 | /* If we have ENGINEs release them */ | |
1477 | ENGINE_finish(pkey->engine); | |
1478 | pkey->engine = NULL; | |
1479 | ENGINE_finish(pkey->pmeth_engine); | |
1480 | pkey->pmeth_engine = NULL; | |
1481 | # endif | |
1482 | #endif | |
1483 | } | |
f844f9eb | 1484 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1485 | if (str != NULL) |
1486 | ameth = EVP_PKEY_asn1_find_str(eptr, str, len); | |
1487 | else if (type != EVP_PKEY_NONE) | |
1488 | ameth = EVP_PKEY_asn1_find(eptr, type); | |
1489 | # ifndef OPENSSL_NO_ENGINE | |
1490 | if (pkey == NULL && eptr != NULL) | |
1491 | ENGINE_finish(e); | |
1492 | # endif | |
1493 | #endif | |
1494 | ||
1495 | ||
1496 | { | |
1497 | int check = 1; | |
1498 | ||
f844f9eb | 1499 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1500 | check = check && ameth == NULL; |
1501 | #endif | |
1502 | check = check && keymgmt == NULL; | |
1503 | if (check) { | |
1504 | EVPerr(EVP_F_PKEY_SET_TYPE, EVP_R_UNSUPPORTED_ALGORITHM); | |
1505 | return 0; | |
1506 | } | |
1507 | } | |
1508 | if (pkey != NULL) { | |
1509 | if (keymgmt != NULL && !EVP_KEYMGMT_up_ref(keymgmt)) { | |
1510 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1511 | return 0; | |
1512 | } | |
1513 | ||
1514 | pkey->keymgmt = keymgmt; | |
1515 | ||
1516 | pkey->save_type = type; | |
1517 | pkey->type = type; | |
1518 | ||
f844f9eb | 1519 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1520 | /* |
1521 | * If the internal "origin" key is provider side, don't save |ameth|. | |
1522 | * The main reason is that |ameth| is one factor to detect that the | |
1523 | * internal "origin" key is a legacy one. | |
1524 | */ | |
1525 | if (keymgmt == NULL) | |
1526 | pkey->ameth = ameth; | |
1527 | pkey->engine = e; | |
1528 | ||
1529 | /* | |
5e5bc836 RL |
1530 | * The EVP_PKEY_ASN1_METHOD |pkey_id| retains its legacy key purpose |
1531 | * for any key type that has a legacy implementation, regardless of | |
1532 | * if the internal key is a legacy or a provider side one. When | |
1533 | * there is no legacy implementation for the key, the type becomes | |
1534 | * EVP_PKEY_KEYMGMT, which indicates that one should be cautious | |
1535 | * with functions that expect legacy internal keys. | |
8243d8d1 | 1536 | */ |
5e5bc836 RL |
1537 | if (ameth != NULL) |
1538 | pkey->type = ameth->pkey_id; | |
1539 | else | |
1540 | pkey->type = EVP_PKEY_KEYMGMT; | |
8243d8d1 RL |
1541 | #endif |
1542 | } | |
1543 | return 1; | |
1544 | } | |
1545 | ||
f844f9eb | 1546 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1547 | static void find_ameth(const char *name, void *data) |
1548 | { | |
1549 | const char **str = data; | |
1550 | ||
1551 | /* | |
1552 | * The error messages from pkey_set_type() are uninteresting here, | |
1553 | * and misleading. | |
1554 | */ | |
1555 | ERR_set_mark(); | |
1556 | ||
1557 | if (pkey_set_type(NULL, NULL, EVP_PKEY_NONE, name, strlen(name), | |
1558 | NULL)) { | |
1559 | if (str[0] == NULL) | |
1560 | str[0] = name; | |
1561 | else if (str[1] == NULL) | |
1562 | str[1] = name; | |
1563 | } | |
1564 | ||
1565 | ERR_pop_to_mark(); | |
1566 | } | |
1567 | #endif | |
1568 | ||
1569 | int EVP_PKEY_set_type_by_keymgmt(EVP_PKEY *pkey, EVP_KEYMGMT *keymgmt) | |
1570 | { | |
f844f9eb | 1571 | #ifndef FIPS_MODULE |
8243d8d1 RL |
1572 | # define EVP_PKEY_TYPE_STR str[0] |
1573 | # define EVP_PKEY_TYPE_STRLEN (str[0] == NULL ? -1 : (int)strlen(str[0])) | |
1574 | /* | |
1575 | * Find at most two strings that have an associated EVP_PKEY_ASN1_METHOD | |
1576 | * Ideally, only one should be found. If two (or more) are found, the | |
1577 | * match is ambiguous. This should never happen, but... | |
1578 | */ | |
1579 | const char *str[2] = { NULL, NULL }; | |
1580 | ||
1581 | EVP_KEYMGMT_names_do_all(keymgmt, find_ameth, &str); | |
1582 | if (str[1] != NULL) { | |
1583 | ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); | |
1584 | return 0; | |
1585 | } | |
1586 | #else | |
1587 | # define EVP_PKEY_TYPE_STR NULL | |
1588 | # define EVP_PKEY_TYPE_STRLEN -1 | |
1589 | #endif | |
1590 | return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, | |
1591 | EVP_PKEY_TYPE_STR, EVP_PKEY_TYPE_STRLEN, | |
1592 | keymgmt); | |
1593 | ||
1594 | #undef EVP_PKEY_TYPE_STR | |
1595 | #undef EVP_PKEY_TYPE_STRLEN | |
1596 | } | |
1597 | ||
e683582b SL |
1598 | int EVP_PKEY_up_ref(EVP_PKEY *pkey) |
1599 | { | |
1600 | int i; | |
1601 | ||
1602 | if (CRYPTO_UP_REF(&pkey->references, &i, pkey->lock) <= 0) | |
1603 | return 0; | |
1604 | ||
1605 | REF_PRINT_COUNT("EVP_PKEY", pkey); | |
1606 | REF_ASSERT_ISNT(i < 2); | |
1607 | return ((i > 1) ? 1 : 0); | |
1608 | } | |
1609 | ||
f844f9eb | 1610 | #ifndef FIPS_MODULE |
62924755 | 1611 | void evp_pkey_free_legacy(EVP_PKEY *x) |
badf51c8 RL |
1612 | { |
1613 | if (x->ameth != NULL) { | |
ff3b59e1 | 1614 | if (x->ameth->pkey_free != NULL) |
badf51c8 RL |
1615 | x->ameth->pkey_free(x); |
1616 | x->pkey.ptr = NULL; | |
badf51c8 RL |
1617 | } |
1618 | # ifndef OPENSSL_NO_ENGINE | |
1619 | ENGINE_finish(x->engine); | |
1620 | x->engine = NULL; | |
1621 | ENGINE_finish(x->pmeth_engine); | |
1622 | x->pmeth_engine = NULL; | |
1623 | # endif | |
badf51c8 | 1624 | } |
f844f9eb | 1625 | #endif /* FIPS_MODULE */ |
badf51c8 | 1626 | |
e683582b SL |
1627 | static void evp_pkey_free_it(EVP_PKEY *x) |
1628 | { | |
1629 | /* internal function; x is never NULL */ | |
1630 | ||
3c6ed955 | 1631 | evp_keymgmt_util_clear_operation_cache(x); |
f844f9eb | 1632 | #ifndef FIPS_MODULE |
badf51c8 RL |
1633 | evp_pkey_free_legacy(x); |
1634 | #endif | |
e683582b | 1635 | |
3c6ed955 RL |
1636 | if (x->keymgmt != NULL) { |
1637 | evp_keymgmt_freedata(x->keymgmt, x->keydata); | |
1638 | EVP_KEYMGMT_free(x->keymgmt); | |
1639 | x->keymgmt = NULL; | |
1640 | x->keydata = NULL; | |
1641 | } | |
5e5bc836 | 1642 | x->type = EVP_PKEY_NONE; |
e683582b SL |
1643 | } |
1644 | ||
1645 | void EVP_PKEY_free(EVP_PKEY *x) | |
1646 | { | |
1647 | int i; | |
1648 | ||
1649 | if (x == NULL) | |
1650 | return; | |
1651 | ||
1652 | CRYPTO_DOWN_REF(&x->references, &i, x->lock); | |
1653 | REF_PRINT_COUNT("EVP_PKEY", x); | |
1654 | if (i > 0) | |
1655 | return; | |
1656 | REF_ASSERT_ISNT(i < 0); | |
1657 | evp_pkey_free_it(x); | |
f844f9eb | 1658 | #ifndef FIPS_MODULE |
ff1f7cde AT |
1659 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, x, &x->ex_data); |
1660 | #endif | |
e683582b | 1661 | CRYPTO_THREAD_lock_free(x->lock); |
f844f9eb | 1662 | #ifndef FIPS_MODULE |
e683582b SL |
1663 | sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free); |
1664 | #endif | |
1665 | OPENSSL_free(x); | |
1666 | } | |
1667 | ||
e683582b SL |
1668 | int EVP_PKEY_size(const EVP_PKEY *pkey) |
1669 | { | |
adc9f731 RL |
1670 | int size = 0; |
1671 | ||
6508e858 | 1672 | if (pkey != NULL) { |
adc9f731 | 1673 | size = pkey->cache.size; |
f844f9eb | 1674 | #ifndef FIPS_MODULE |
adc9f731 RL |
1675 | if (pkey->ameth != NULL && pkey->ameth->pkey_size != NULL) |
1676 | size = pkey->ameth->pkey_size(pkey); | |
1677 | #endif | |
6508e858 | 1678 | } |
adc9f731 | 1679 | return size; |
e683582b | 1680 | } |
f6aa5774 | 1681 | |
3c6ed955 RL |
1682 | void *evp_pkey_export_to_provider(EVP_PKEY *pk, OPENSSL_CTX *libctx, |
1683 | EVP_KEYMGMT **keymgmt, | |
1684 | const char *propquery) | |
f6aa5774 RL |
1685 | { |
1686 | EVP_KEYMGMT *allocated_keymgmt = NULL; | |
1687 | EVP_KEYMGMT *tmp_keymgmt = NULL; | |
b305452f | 1688 | void *keydata = NULL; |
adc9f731 | 1689 | int check; |
f6aa5774 RL |
1690 | |
1691 | if (pk == NULL) | |
1692 | return NULL; | |
1693 | ||
adc9f731 RL |
1694 | /* No key data => nothing to export */ |
1695 | check = 1; | |
f844f9eb | 1696 | #ifndef FIPS_MODULE |
adc9f731 RL |
1697 | check = check && pk->pkey.ptr == NULL; |
1698 | #endif | |
1699 | check = check && pk->keydata == NULL; | |
1700 | if (check) | |
1701 | return NULL; | |
1702 | ||
f844f9eb | 1703 | #ifndef FIPS_MODULE |
3f7ce7f1 | 1704 | if (pk->pkey.ptr != NULL) { |
3f7ce7f1 | 1705 | /* |
3c6ed955 RL |
1706 | * If the legacy key doesn't have an dirty counter or export function, |
1707 | * give up | |
3f7ce7f1 | 1708 | */ |
3c6ed955 RL |
1709 | if (pk->ameth->dirty_cnt == NULL || pk->ameth->export_to == NULL) |
1710 | return NULL; | |
3f7ce7f1 RL |
1711 | } |
1712 | #endif | |
1713 | ||
3c6ed955 RL |
1714 | if (keymgmt != NULL) { |
1715 | tmp_keymgmt = *keymgmt; | |
1716 | *keymgmt = NULL; | |
1717 | } | |
1718 | ||
4b9e90f4 RL |
1719 | /* |
1720 | * If no keymgmt was given or found, get a default keymgmt. We do so by | |
1721 | * letting EVP_PKEY_CTX_new_from_pkey() do it for us, then we steal it. | |
1722 | */ | |
f6aa5774 | 1723 | if (tmp_keymgmt == NULL) { |
2ee4a50a | 1724 | EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk, propquery); |
f6aa5774 | 1725 | |
4b9e90f4 RL |
1726 | tmp_keymgmt = ctx->keymgmt; |
1727 | ctx->keymgmt = NULL; | |
f6aa5774 RL |
1728 | EVP_PKEY_CTX_free(ctx); |
1729 | } | |
1730 | ||
3c6ed955 | 1731 | /* If there's still no keymgmt to be had, give up */ |
3f7ce7f1 RL |
1732 | if (tmp_keymgmt == NULL) |
1733 | goto end; | |
f6aa5774 | 1734 | |
f844f9eb | 1735 | #ifndef FIPS_MODULE |
3f7ce7f1 | 1736 | if (pk->pkey.ptr != NULL) { |
3c6ed955 | 1737 | size_t i = 0; |
3f7ce7f1 RL |
1738 | |
1739 | /* | |
3c6ed955 RL |
1740 | * If the legacy "origin" hasn't changed since last time, we try |
1741 | * to find our keymgmt in the operation cache. If it has changed, | |
1742 | * |i| remains zero, and we will clear the cache further down. | |
3f7ce7f1 | 1743 | */ |
3c6ed955 RL |
1744 | if (pk->ameth->dirty_cnt(pk) == pk->dirty_cnt_copy) { |
1745 | i = evp_keymgmt_util_find_operation_cache_index(pk, tmp_keymgmt); | |
1746 | ||
1747 | /* | |
1748 | * If |tmp_keymgmt| is present in the operation cache, it means | |
1749 | * that export doesn't need to be redone. In that case, we take | |
1750 | * token copies of the cached pointers, to have token success | |
1751 | * values to return. | |
1752 | */ | |
1753 | if (i < OSSL_NELEM(pk->operation_cache) | |
1754 | && pk->operation_cache[i].keymgmt != NULL) { | |
1755 | keydata = pk->operation_cache[i].keydata; | |
1756 | goto end; | |
1757 | } | |
3f7ce7f1 RL |
1758 | } |
1759 | ||
1760 | /* | |
3c6ed955 RL |
1761 | * TODO(3.0) Right now, we assume we have ample space. We will have |
1762 | * to think about a cache aging scheme, though, if |i| indexes outside | |
1763 | * the array. | |
3f7ce7f1 | 1764 | */ |
3c6ed955 | 1765 | if (!ossl_assert(i < OSSL_NELEM(pk->operation_cache))) |
3f7ce7f1 RL |
1766 | goto end; |
1767 | ||
1768 | /* Make sure that the keymgmt key type matches the legacy NID */ | |
1769 | if (!ossl_assert(EVP_KEYMGMT_is_a(tmp_keymgmt, OBJ_nid2sn(pk->type)))) | |
1770 | goto end; | |
1771 | ||
1772 | if ((keydata = evp_keymgmt_newdata(tmp_keymgmt)) == NULL) | |
1773 | goto end; | |
1774 | ||
76e23fc5 | 1775 | if (!pk->ameth->export_to(pk, keydata, tmp_keymgmt, libctx, propquery)) { |
3f7ce7f1 RL |
1776 | evp_keymgmt_freedata(tmp_keymgmt, keydata); |
1777 | keydata = NULL; | |
1778 | goto end; | |
1779 | } | |
1780 | ||
3c6ed955 RL |
1781 | /* |
1782 | * If the dirty counter changed since last time, then clear the | |
1783 | * operation cache. In that case, we know that |i| is zero. Just | |
1784 | * in case this is a re-export, we increment then decrement the | |
1785 | * keymgmt reference counter. | |
1786 | */ | |
1787 | if (!EVP_KEYMGMT_up_ref(tmp_keymgmt)) { /* refcnt++ */ | |
1788 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1789 | keydata = NULL; | |
1790 | goto end; | |
1791 | } | |
1792 | if (pk->ameth->dirty_cnt(pk) != pk->dirty_cnt_copy) | |
1793 | evp_keymgmt_util_clear_operation_cache(pk); | |
1794 | EVP_KEYMGMT_free(tmp_keymgmt); /* refcnt-- */ | |
1795 | ||
1796 | /* Add the new export to the operation cache */ | |
1797 | if (!evp_keymgmt_util_cache_keydata(pk, i, tmp_keymgmt, keydata)) { | |
1798 | evp_keymgmt_freedata(tmp_keymgmt, keydata); | |
1799 | keydata = NULL; | |
1800 | goto end; | |
1801 | } | |
3f7ce7f1 RL |
1802 | |
1803 | /* Synchronize the dirty count */ | |
1804 | pk->dirty_cnt_copy = pk->ameth->dirty_cnt(pk); | |
1805 | goto end; | |
1806 | } | |
f844f9eb | 1807 | #endif /* FIPS_MODULE */ |
3f7ce7f1 RL |
1808 | |
1809 | keydata = evp_keymgmt_util_export_to_provider(pk, tmp_keymgmt); | |
1810 | ||
1811 | end: | |
f6aa5774 RL |
1812 | /* |
1813 | * If nothing was exported, |tmp_keymgmt| might point at a freed | |
1814 | * EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for | |
1815 | * the caller either way in that case. | |
1816 | */ | |
b305452f | 1817 | if (keydata == NULL) |
f6aa5774 RL |
1818 | tmp_keymgmt = NULL; |
1819 | ||
1820 | if (keymgmt != NULL) | |
1821 | *keymgmt = tmp_keymgmt; | |
1822 | ||
1823 | EVP_KEYMGMT_free(allocated_keymgmt); | |
b305452f | 1824 | return keydata; |
f6aa5774 | 1825 | } |
badf51c8 | 1826 | |
f844f9eb | 1827 | #ifndef FIPS_MODULE |
4ce1025a | 1828 | int evp_pkey_copy_downgraded(EVP_PKEY **dest, const EVP_PKEY *src) |
badf51c8 | 1829 | { |
4ce1025a RL |
1830 | if (!ossl_assert(dest != NULL)) |
1831 | return 0; | |
badf51c8 | 1832 | |
4ce1025a RL |
1833 | if (evp_pkey_is_assigned(src) && evp_pkey_is_provided(src)) { |
1834 | EVP_KEYMGMT *keymgmt = src->keymgmt; | |
1835 | void *keydata = src->keydata; | |
1836 | int type = src->type; | |
1837 | const char *keytype = NULL; | |
acb90ba8 | 1838 | |
4ce1025a RL |
1839 | keytype = evp_first_name(EVP_KEYMGMT_provider(keymgmt), |
1840 | keymgmt->name_id); | |
badf51c8 | 1841 | |
4ce1025a RL |
1842 | /* |
1843 | * If the type is EVP_PKEY_NONE, then we have a problem somewhere | |
1844 | * else in our code. If it's not one of the well known EVP_PKEY_xxx | |
1845 | * values, it should at least be EVP_PKEY_KEYMGMT at this point. | |
1846 | * TODO(3.0) remove this check when we're confident that the rest | |
1847 | * of the code treats this correctly. | |
1848 | */ | |
1849 | if (!ossl_assert(type != EVP_PKEY_NONE)) { | |
1850 | ERR_raise_data(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR, | |
1851 | "keymgmt key type = %s but legacy type = EVP_PKEY_NONE", | |
1852 | keytype); | |
1853 | return 0; | |
1854 | } | |
badf51c8 | 1855 | |
4ce1025a RL |
1856 | /* Prefer the legacy key type name for error reporting */ |
1857 | if (type != EVP_PKEY_KEYMGMT) | |
1858 | keytype = OBJ_nid2sn(type); | |
5e5bc836 | 1859 | |
4ce1025a RL |
1860 | /* Make sure we have a clean slate to copy into */ |
1861 | if (*dest == NULL) | |
1862 | *dest = EVP_PKEY_new(); | |
1863 | else | |
1864 | evp_pkey_free_it(*dest); | |
badf51c8 | 1865 | |
4ce1025a RL |
1866 | if (EVP_PKEY_set_type(*dest, type)) { |
1867 | /* If the key is typed but empty, we're done */ | |
1868 | if (keydata == NULL) | |
1869 | return 1; | |
629c72db | 1870 | |
4ce1025a RL |
1871 | if ((*dest)->ameth->import_from == NULL) { |
1872 | ERR_raise_data(ERR_LIB_EVP, EVP_R_NO_IMPORT_FUNCTION, | |
1873 | "key type = %s", keytype); | |
1874 | } else { | |
629c72db | 1875 | /* |
4ce1025a RL |
1876 | * We perform the export in the same libctx as the keymgmt |
1877 | * that we are using. | |
629c72db | 1878 | */ |
4ce1025a RL |
1879 | OPENSSL_CTX *libctx = |
1880 | ossl_provider_library_context(keymgmt->prov); | |
1881 | EVP_PKEY_CTX *pctx = | |
1882 | EVP_PKEY_CTX_new_from_pkey(libctx, *dest, NULL); | |
629c72db | 1883 | |
4ce1025a RL |
1884 | if (pctx == NULL) |
1885 | ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); | |
629c72db | 1886 | |
4ce1025a RL |
1887 | if (pctx != NULL |
1888 | && evp_keymgmt_export(keymgmt, keydata, | |
1889 | OSSL_KEYMGMT_SELECT_ALL, | |
1890 | (*dest)->ameth->import_from, | |
1891 | pctx)) { | |
1892 | /* Synchronize the dirty count */ | |
1893 | (*dest)->dirty_cnt_copy = (*dest)->ameth->dirty_cnt(*dest); | |
1894 | ||
1895 | EVP_PKEY_CTX_free(pctx); | |
1896 | return 1; | |
1897 | } | |
1898 | EVP_PKEY_CTX_free(pctx); | |
629c72db | 1899 | } |
badf51c8 | 1900 | |
4ce1025a RL |
1901 | ERR_raise_data(ERR_LIB_EVP, EVP_R_KEYMGMT_EXPORT_FAILURE, |
1902 | "key type = %s", keytype); | |
1903 | } | |
badf51c8 RL |
1904 | } |
1905 | ||
4ce1025a RL |
1906 | return 0; |
1907 | } | |
1908 | ||
1909 | int evp_pkey_downgrade(EVP_PKEY *pk) | |
1910 | { | |
1911 | EVP_PKEY tmp_copy; /* Stack allocated! */ | |
1912 | ||
1913 | /* If this isn't an assigned provider side key, we're done */ | |
1914 | if (!evp_pkey_is_assigned(pk) || !evp_pkey_is_provided(pk)) | |
1915 | return 1; | |
1916 | ||
badf51c8 | 1917 | /* |
4ce1025a RL |
1918 | * To be able to downgrade, we steal the contents of |pk|, then reset |
1919 | * it, and finally try to make it a downgraded copy. If any of that | |
1920 | * fails, we restore the copied contents into |pk|. | |
badf51c8 | 1921 | */ |
4ce1025a RL |
1922 | tmp_copy = *pk; |
1923 | ||
1924 | if (evp_pkey_reset_unlocked(pk) | |
1925 | && evp_pkey_copy_downgraded(&pk, &tmp_copy)) { | |
1926 | /* Restore the common attributes, then empty |tmp_copy| */ | |
1927 | pk->references = tmp_copy.references; | |
1928 | pk->lock = tmp_copy.lock; | |
1929 | pk->attributes = tmp_copy.attributes; | |
1930 | pk->save_parameters = tmp_copy.save_parameters; | |
1931 | pk->ex_data = tmp_copy.ex_data; | |
1932 | ||
1933 | /* Ensure that stuff we've copied won't be freed */ | |
1934 | tmp_copy.lock = NULL; | |
1935 | tmp_copy.attributes = NULL; | |
1936 | memset(&tmp_copy.ex_data, 0, sizeof(tmp_copy.ex_data)); | |
1937 | ||
1938 | /* | |
1939 | * Save the provider side data in the operation cache, so they'll | |
1940 | * find it again. |pk| is new, so it's safe to assume slot zero | |
1941 | * is free. | |
1942 | * Note that evp_keymgmt_util_cache_keydata() increments keymgmt's | |
1943 | * reference count, so we need to decrement it, or there will be a | |
1944 | * leak. | |
1945 | */ | |
1946 | evp_keymgmt_util_cache_keydata(pk, 0, tmp_copy.keymgmt, | |
1947 | tmp_copy.keydata); | |
1948 | EVP_KEYMGMT_free(tmp_copy.keymgmt); | |
1949 | ||
1950 | /* | |
1951 | * Clear keymgmt and keydata from |tmp_copy|, or they'll get | |
1952 | * inadvertently freed. | |
1953 | */ | |
1954 | tmp_copy.keymgmt = NULL; | |
1955 | tmp_copy.keydata = NULL; | |
1956 | ||
1957 | evp_pkey_free_it(&tmp_copy); | |
1958 | ||
1959 | return 1; | |
acb90ba8 | 1960 | } |
4ce1025a RL |
1961 | |
1962 | *pk = tmp_copy; | |
1963 | return 0; | |
badf51c8 | 1964 | } |
f844f9eb | 1965 | #endif /* FIPS_MODULE */ |
96ebe52e SL |
1966 | |
1967 | const OSSL_PARAM *EVP_PKEY_gettable_params(EVP_PKEY *pkey) | |
1968 | { | |
1969 | if (pkey == NULL | |
1970 | || pkey->keymgmt == NULL | |
1971 | || pkey->keydata == NULL) | |
1972 | return 0; | |
e3efe7a5 | 1973 | return EVP_KEYMGMT_gettable_params(pkey->keymgmt); |
96ebe52e SL |
1974 | } |
1975 | ||
96ebe52e SL |
1976 | int EVP_PKEY_get_bn_param(EVP_PKEY *pkey, const char *key_name, BIGNUM **bn) |
1977 | { | |
1978 | int ret = 0; | |
1979 | OSSL_PARAM params[2]; | |
1980 | unsigned char buffer[2048]; | |
96ebe52e SL |
1981 | unsigned char *buf = NULL; |
1982 | size_t buf_sz = 0; | |
1983 | ||
1984 | if (pkey == NULL | |
1985 | || pkey->keymgmt == NULL | |
1986 | || pkey->keydata == NULL | |
1987 | || key_name == NULL | |
1988 | || bn == NULL) | |
1989 | return 0; | |
1990 | ||
1991 | memset(buffer, 0, sizeof(buffer)); | |
1992 | params[0] = OSSL_PARAM_construct_BN(key_name, buffer, sizeof(buffer)); | |
96ebe52e SL |
1993 | params[1] = OSSL_PARAM_construct_end(); |
1994 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) { | |
99ea4f02 | 1995 | if (!OSSL_PARAM_modified(params) || params[0].return_size == 0) |
96ebe52e SL |
1996 | return 0; |
1997 | buf_sz = params[0].return_size; | |
1998 | /* | |
1999 | * If it failed because the buffer was too small then allocate the | |
2000 | * required buffer size and retry. | |
2001 | */ | |
2002 | buf = OPENSSL_zalloc(buf_sz); | |
2003 | if (buf == NULL) | |
2004 | return 0; | |
2005 | params[0].data = buf; | |
2006 | params[0].data_size = buf_sz; | |
2007 | ||
2008 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) | |
2009 | goto err; | |
2010 | } | |
2011 | /* Fail if the param was not found */ | |
99ea4f02 | 2012 | if (!OSSL_PARAM_modified(params)) |
96ebe52e SL |
2013 | goto err; |
2014 | ret = OSSL_PARAM_get_BN(params, bn); | |
2015 | err: | |
2016 | OPENSSL_free(buf); | |
2017 | return ret; | |
2018 | } | |
2019 | ||
2020 | int EVP_PKEY_get_octet_string_param(EVP_PKEY *pkey, const char *key_name, | |
2021 | unsigned char *buf, size_t max_buf_sz, | |
2022 | size_t *out_sz) | |
2023 | { | |
2024 | OSSL_PARAM params[2]; | |
96ebe52e SL |
2025 | |
2026 | if (pkey == NULL | |
2027 | || pkey->keymgmt == NULL | |
2028 | || pkey->keydata == NULL | |
2029 | || key_name == NULL) | |
2030 | return 0; | |
2031 | ||
2032 | params[0] = OSSL_PARAM_construct_octet_string(key_name, buf, max_buf_sz); | |
96ebe52e | 2033 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
2034 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
2035 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
2036 | return 0; |
2037 | if (out_sz != NULL) | |
2038 | *out_sz = params[0].return_size; | |
2039 | return 1; | |
2040 | } | |
2041 | ||
2042 | int EVP_PKEY_get_utf8_string_param(EVP_PKEY *pkey, const char *key_name, | |
2043 | char *str, size_t max_buf_sz, | |
2044 | size_t *out_sz) | |
2045 | { | |
2046 | OSSL_PARAM params[2]; | |
96ebe52e SL |
2047 | |
2048 | if (pkey == NULL | |
2049 | || pkey->keymgmt == NULL | |
2050 | || pkey->keydata == NULL | |
2051 | || key_name == NULL) | |
2052 | return 0; | |
2053 | ||
2054 | params[0] = OSSL_PARAM_construct_utf8_string(key_name, str, max_buf_sz); | |
96ebe52e | 2055 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
2056 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
2057 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
2058 | return 0; |
2059 | if (out_sz != NULL) | |
2060 | *out_sz = params[0].return_size; | |
2061 | return 1; | |
2062 | } | |
2063 | ||
2064 | int EVP_PKEY_get_int_param(EVP_PKEY *pkey, const char *key_name, int *out) | |
2065 | { | |
2066 | OSSL_PARAM params[2]; | |
96ebe52e SL |
2067 | |
2068 | if (pkey == NULL | |
2069 | || pkey->keymgmt == NULL | |
2070 | || pkey->keydata == NULL | |
2071 | || key_name == NULL) | |
2072 | return 0; | |
2073 | ||
2074 | params[0] = OSSL_PARAM_construct_int(key_name, out); | |
96ebe52e | 2075 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
2076 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
2077 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
2078 | return 0; |
2079 | return 1; | |
2080 | } | |
2081 | ||
2082 | int EVP_PKEY_get_size_t_param(EVP_PKEY *pkey, const char *key_name, size_t *out) | |
2083 | { | |
2084 | OSSL_PARAM params[2]; | |
96ebe52e SL |
2085 | |
2086 | if (pkey == NULL | |
2087 | || pkey->keymgmt == NULL | |
2088 | || pkey->keydata == NULL | |
2089 | || key_name == NULL) | |
2090 | return 0; | |
2091 | ||
2092 | params[0] = OSSL_PARAM_construct_size_t(key_name, out); | |
96ebe52e | 2093 | params[1] = OSSL_PARAM_construct_end(); |
99ea4f02 P |
2094 | if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) |
2095 | || !OSSL_PARAM_modified(params)) | |
96ebe52e SL |
2096 | return 0; |
2097 | return 1; | |
2098 | } |