]>
Commit | Line | Data |
---|---|---|
1 | ||
2 | /* | |
3 | * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved. | |
4 | * | |
5 | * Licensed under the Apache License 2.0 (the "License"). You may not use | |
6 | * this file except in compliance with the License. You can obtain a copy | |
7 | * in the file LICENSE in the source distribution or at | |
8 | * https://www.openssl.org/source/license.html | |
9 | */ | |
10 | ||
11 | /* | |
12 | * DH low level APIs are deprecated for public use, but still ok for | |
13 | * internal use. | |
14 | */ | |
15 | #include "internal/deprecated.h" | |
16 | ||
17 | #include <stdio.h> | |
18 | #include <stdlib.h> | |
19 | #include <openssl/engine.h> | |
20 | #include <openssl/evp.h> | |
21 | #include <openssl/x509v3.h> | |
22 | #include <openssl/core_names.h> | |
23 | #include <openssl/dh.h> | |
24 | #include <openssl/rsa.h> | |
25 | #include "internal/cryptlib.h" | |
26 | #include "crypto/asn1.h" | |
27 | #include "crypto/evp.h" | |
28 | #include "internal/numbers.h" | |
29 | #include "internal/provider.h" | |
30 | #include "evp_local.h" | |
31 | ||
32 | #ifndef FIPS_MODE | |
33 | ||
34 | typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void); | |
35 | typedef int sk_cmp_fn_type(const char *const *a, const char *const *b); | |
36 | ||
37 | static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL; | |
38 | ||
39 | /* This array needs to be in order of NIDs */ | |
40 | static pmeth_fn standard_methods[] = { | |
41 | # ifndef OPENSSL_NO_RSA | |
42 | rsa_pkey_method, | |
43 | # endif | |
44 | # ifndef OPENSSL_NO_DH | |
45 | dh_pkey_method, | |
46 | # endif | |
47 | # ifndef OPENSSL_NO_DSA | |
48 | dsa_pkey_method, | |
49 | # endif | |
50 | # ifndef OPENSSL_NO_EC | |
51 | ec_pkey_method, | |
52 | # endif | |
53 | hmac_pkey_method, | |
54 | # ifndef OPENSSL_NO_CMAC | |
55 | cmac_pkey_method, | |
56 | # endif | |
57 | # ifndef OPENSSL_NO_RSA | |
58 | rsa_pss_pkey_method, | |
59 | # endif | |
60 | # ifndef OPENSSL_NO_DH | |
61 | dhx_pkey_method, | |
62 | # endif | |
63 | # ifndef OPENSSL_NO_SCRYPT | |
64 | scrypt_pkey_method, | |
65 | # endif | |
66 | tls1_prf_pkey_method, | |
67 | # ifndef OPENSSL_NO_EC | |
68 | ecx25519_pkey_method, | |
69 | ecx448_pkey_method, | |
70 | # endif | |
71 | hkdf_pkey_method, | |
72 | # ifndef OPENSSL_NO_POLY1305 | |
73 | poly1305_pkey_method, | |
74 | # endif | |
75 | # ifndef OPENSSL_NO_SIPHASH | |
76 | siphash_pkey_method, | |
77 | # endif | |
78 | # ifndef OPENSSL_NO_EC | |
79 | ed25519_pkey_method, | |
80 | ed448_pkey_method, | |
81 | # endif | |
82 | # ifndef OPENSSL_NO_SM2 | |
83 | sm2_pkey_method, | |
84 | # endif | |
85 | }; | |
86 | ||
87 | DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func); | |
88 | ||
89 | static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b) | |
90 | { | |
91 | return ((*a)->pkey_id - ((**b)())->pkey_id); | |
92 | } | |
93 | ||
94 | IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func); | |
95 | ||
96 | static int pmeth_cmp(const EVP_PKEY_METHOD *const *a, | |
97 | const EVP_PKEY_METHOD *const *b) | |
98 | { | |
99 | return ((*a)->pkey_id - (*b)->pkey_id); | |
100 | } | |
101 | ||
102 | const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type) | |
103 | { | |
104 | pmeth_fn *ret; | |
105 | EVP_PKEY_METHOD tmp; | |
106 | const EVP_PKEY_METHOD *t = &tmp; | |
107 | ||
108 | tmp.pkey_id = type; | |
109 | if (app_pkey_methods) { | |
110 | int idx; | |
111 | idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp); | |
112 | if (idx >= 0) | |
113 | return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx); | |
114 | } | |
115 | ret = OBJ_bsearch_pmeth_func(&t, standard_methods, | |
116 | sizeof(standard_methods) / | |
117 | sizeof(pmeth_fn)); | |
118 | if (ret == NULL || *ret == NULL) | |
119 | return NULL; | |
120 | return (**ret)(); | |
121 | } | |
122 | ||
123 | EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags) | |
124 | { | |
125 | EVP_PKEY_METHOD *pmeth; | |
126 | ||
127 | pmeth = OPENSSL_zalloc(sizeof(*pmeth)); | |
128 | if (pmeth == NULL) { | |
129 | EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE); | |
130 | return NULL; | |
131 | } | |
132 | ||
133 | pmeth->pkey_id = id; | |
134 | pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC; | |
135 | return pmeth; | |
136 | } | |
137 | #endif /* FIPS_MODE */ | |
138 | ||
139 | static EVP_PKEY_CTX *int_ctx_new(OPENSSL_CTX *libctx, | |
140 | EVP_PKEY *pkey, ENGINE *e, | |
141 | const char *name, const char *propquery, | |
142 | int id) | |
143 | ||
144 | { | |
145 | EVP_PKEY_CTX *ret; | |
146 | const EVP_PKEY_METHOD *pmeth = NULL; | |
147 | ||
148 | /* | |
149 | * When using providers, the context is bound to the algo implementation | |
150 | * later. | |
151 | */ | |
152 | if (pkey == NULL && e == NULL && id == -1) | |
153 | goto common; | |
154 | ||
155 | /* | |
156 | * If the key doesn't contain anything legacy, then it must be provided, | |
157 | * so we extract the necessary information and use that. | |
158 | */ | |
159 | if (pkey != NULL && pkey->ameth == NULL) { | |
160 | /* If we have an engine, something went wrong somewhere... */ | |
161 | if (!ossl_assert(e == NULL)) | |
162 | return NULL; | |
163 | name = evp_first_name(pkey->pkeys[0].keymgmt->prov, | |
164 | pkey->pkeys[0].keymgmt->name_id); | |
165 | /* | |
166 | * TODO: I wonder if the EVP_PKEY should have the name and propquery | |
167 | * that were used when building it.... /RL | |
168 | */ | |
169 | goto common; | |
170 | } | |
171 | #ifndef FIPS_MODE | |
172 | /* TODO(3.0) Legacy code should be removed when all is provider based */ | |
173 | /* BEGIN legacy */ | |
174 | if (id == -1) { | |
175 | if (pkey == NULL) | |
176 | return NULL; | |
177 | id = pkey->type; | |
178 | } | |
179 | ||
180 | /* | |
181 | * Here, we extract what information we can for the purpose of | |
182 | * supporting usage with implementations from providers, to make | |
183 | * for a smooth transition from legacy stuff to provider based stuff. | |
184 | * | |
185 | * If an engine is given, this is entirely legacy, and we should not | |
186 | * pretend anything else, so we only set the name when no engine is | |
187 | * given. If both are already given, someone made a mistake, and | |
188 | * since that can only happen internally, it's safe to make an | |
189 | * assertion. | |
190 | */ | |
191 | if (!ossl_assert(e == NULL || name == NULL)) | |
192 | return NULL; | |
193 | if (e == NULL) | |
194 | name = OBJ_nid2sn(id); | |
195 | ||
196 | # ifndef OPENSSL_NO_ENGINE | |
197 | if (e == NULL && pkey != NULL) | |
198 | e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine; | |
199 | /* Try to find an ENGINE which implements this method */ | |
200 | if (e) { | |
201 | if (!ENGINE_init(e)) { | |
202 | EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB); | |
203 | return NULL; | |
204 | } | |
205 | } else { | |
206 | e = ENGINE_get_pkey_meth_engine(id); | |
207 | } | |
208 | ||
209 | /* | |
210 | * If an ENGINE handled this method look it up. Otherwise use internal | |
211 | * tables. | |
212 | */ | |
213 | if (e) | |
214 | pmeth = ENGINE_get_pkey_meth(e, id); | |
215 | else | |
216 | # endif | |
217 | pmeth = EVP_PKEY_meth_find(id); | |
218 | ||
219 | if (pmeth == NULL) { | |
220 | # ifndef OPENSSL_NO_ENGINE | |
221 | ENGINE_finish(e); | |
222 | # endif | |
223 | EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM); | |
224 | return NULL; | |
225 | } | |
226 | /* END legacy */ | |
227 | #endif /* FIPS_MODE */ | |
228 | common: | |
229 | ret = OPENSSL_zalloc(sizeof(*ret)); | |
230 | if (ret == NULL) { | |
231 | #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE) | |
232 | ENGINE_finish(e); | |
233 | #endif | |
234 | EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
235 | return NULL; | |
236 | } | |
237 | ret->libctx = libctx; | |
238 | ret->keytype = name; | |
239 | ret->propquery = propquery; | |
240 | ret->engine = e; | |
241 | ret->pmeth = pmeth; | |
242 | ret->operation = EVP_PKEY_OP_UNDEFINED; | |
243 | ret->pkey = pkey; | |
244 | if (pkey != NULL) | |
245 | EVP_PKEY_up_ref(pkey); | |
246 | ||
247 | if (pmeth != NULL && pmeth->init != NULL) { | |
248 | if (pmeth->init(ret) <= 0) { | |
249 | ret->pmeth = NULL; | |
250 | EVP_PKEY_CTX_free(ret); | |
251 | return NULL; | |
252 | } | |
253 | } | |
254 | ||
255 | return ret; | |
256 | } | |
257 | ||
258 | /*- All methods below can also be used in FIPS_MODE */ | |
259 | ||
260 | EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OPENSSL_CTX *libctx, | |
261 | const char *name, | |
262 | const char *propquery) | |
263 | { | |
264 | return int_ctx_new(libctx, NULL, NULL, name, propquery, -1); | |
265 | } | |
266 | ||
267 | EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OPENSSL_CTX *libctx, EVP_PKEY *pkey, | |
268 | const char *propquery) | |
269 | { | |
270 | return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1); | |
271 | } | |
272 | ||
273 | void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx) | |
274 | { | |
275 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { | |
276 | if (ctx->op.sig.sigprovctx != NULL && ctx->op.sig.signature != NULL) | |
277 | ctx->op.sig.signature->freectx(ctx->op.sig.sigprovctx); | |
278 | EVP_SIGNATURE_free(ctx->op.sig.signature); | |
279 | ctx->op.sig.sigprovctx = NULL; | |
280 | ctx->op.sig.signature = NULL; | |
281 | } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { | |
282 | if (ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL) | |
283 | ctx->op.kex.exchange->freectx(ctx->op.kex.exchprovctx); | |
284 | EVP_KEYEXCH_free(ctx->op.kex.exchange); | |
285 | ctx->op.kex.exchprovctx = NULL; | |
286 | ctx->op.kex.exchange = NULL; | |
287 | } | |
288 | /* TODO(3.0): add dependancies and uncomment this when available for fips mode */ | |
289 | #ifndef FIPS_MODE | |
290 | else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) { | |
291 | if (ctx->op.ciph.ciphprovctx != NULL && ctx->op.ciph.cipher != NULL) | |
292 | ctx->op.ciph.cipher->freectx(ctx->op.ciph.ciphprovctx); | |
293 | EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher); | |
294 | ctx->op.ciph.ciphprovctx = NULL; | |
295 | ctx->op.ciph.cipher = NULL; | |
296 | } | |
297 | #endif | |
298 | } | |
299 | ||
300 | void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx) | |
301 | { | |
302 | if (ctx == NULL) | |
303 | return; | |
304 | if (ctx->pmeth && ctx->pmeth->cleanup) | |
305 | ctx->pmeth->cleanup(ctx); | |
306 | ||
307 | evp_pkey_ctx_free_old_ops(ctx); | |
308 | EVP_KEYMGMT_free(ctx->keymgmt); | |
309 | ||
310 | EVP_PKEY_free(ctx->pkey); | |
311 | EVP_PKEY_free(ctx->peerkey); | |
312 | #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE) | |
313 | ENGINE_finish(ctx->engine); | |
314 | #endif | |
315 | OPENSSL_free(ctx); | |
316 | } | |
317 | ||
318 | #ifndef FIPS_MODE | |
319 | ||
320 | void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags, | |
321 | const EVP_PKEY_METHOD *meth) | |
322 | { | |
323 | if (ppkey_id) | |
324 | *ppkey_id = meth->pkey_id; | |
325 | if (pflags) | |
326 | *pflags = meth->flags; | |
327 | } | |
328 | ||
329 | void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src) | |
330 | { | |
331 | ||
332 | dst->init = src->init; | |
333 | dst->copy = src->copy; | |
334 | dst->cleanup = src->cleanup; | |
335 | ||
336 | dst->paramgen_init = src->paramgen_init; | |
337 | dst->paramgen = src->paramgen; | |
338 | ||
339 | dst->keygen_init = src->keygen_init; | |
340 | dst->keygen = src->keygen; | |
341 | ||
342 | dst->sign_init = src->sign_init; | |
343 | dst->sign = src->sign; | |
344 | ||
345 | dst->verify_init = src->verify_init; | |
346 | dst->verify = src->verify; | |
347 | ||
348 | dst->verify_recover_init = src->verify_recover_init; | |
349 | dst->verify_recover = src->verify_recover; | |
350 | ||
351 | dst->signctx_init = src->signctx_init; | |
352 | dst->signctx = src->signctx; | |
353 | ||
354 | dst->verifyctx_init = src->verifyctx_init; | |
355 | dst->verifyctx = src->verifyctx; | |
356 | ||
357 | dst->encrypt_init = src->encrypt_init; | |
358 | dst->encrypt = src->encrypt; | |
359 | ||
360 | dst->decrypt_init = src->decrypt_init; | |
361 | dst->decrypt = src->decrypt; | |
362 | ||
363 | dst->derive_init = src->derive_init; | |
364 | dst->derive = src->derive; | |
365 | ||
366 | dst->ctrl = src->ctrl; | |
367 | dst->ctrl_str = src->ctrl_str; | |
368 | ||
369 | dst->check = src->check; | |
370 | } | |
371 | ||
372 | void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth) | |
373 | { | |
374 | if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC)) | |
375 | OPENSSL_free(pmeth); | |
376 | } | |
377 | ||
378 | EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e) | |
379 | { | |
380 | return int_ctx_new(NULL, pkey, e, NULL, NULL, -1); | |
381 | } | |
382 | ||
383 | EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e) | |
384 | { | |
385 | return int_ctx_new(NULL, NULL, e, NULL, NULL, id); | |
386 | } | |
387 | ||
388 | EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx) | |
389 | { | |
390 | EVP_PKEY_CTX *rctx; | |
391 | ||
392 | if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL)) | |
393 | && ((EVP_PKEY_CTX_IS_DERIVE_OP(pctx) | |
394 | && pctx->op.kex.exchprovctx == NULL) | |
395 | || (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx) | |
396 | && pctx->op.sig.sigprovctx == NULL))) | |
397 | return NULL; | |
398 | # ifndef OPENSSL_NO_ENGINE | |
399 | /* Make sure it's safe to copy a pkey context using an ENGINE */ | |
400 | if (pctx->engine && !ENGINE_init(pctx->engine)) { | |
401 | EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB); | |
402 | return 0; | |
403 | } | |
404 | # endif | |
405 | rctx = OPENSSL_zalloc(sizeof(*rctx)); | |
406 | if (rctx == NULL) { | |
407 | EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE); | |
408 | return NULL; | |
409 | } | |
410 | ||
411 | if (pctx->pkey != NULL) | |
412 | EVP_PKEY_up_ref(pctx->pkey); | |
413 | rctx->pkey = pctx->pkey; | |
414 | rctx->operation = pctx->operation; | |
415 | rctx->libctx = pctx->libctx; | |
416 | rctx->keytype = pctx->keytype; | |
417 | rctx->propquery = pctx->propquery; | |
418 | ||
419 | if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) { | |
420 | if (pctx->op.kex.exchange != NULL) { | |
421 | rctx->op.kex.exchange = pctx->op.kex.exchange; | |
422 | if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange)) { | |
423 | OPENSSL_free(rctx); | |
424 | return NULL; | |
425 | } | |
426 | } | |
427 | if (pctx->op.kex.exchprovctx != NULL) { | |
428 | if (!ossl_assert(pctx->op.kex.exchange != NULL)) | |
429 | return NULL; | |
430 | rctx->op.kex.exchprovctx | |
431 | = pctx->op.kex.exchange->dupctx(pctx->op.kex.exchprovctx); | |
432 | if (rctx->op.kex.exchprovctx == NULL) { | |
433 | EVP_KEYEXCH_free(rctx->op.kex.exchange); | |
434 | OPENSSL_free(rctx); | |
435 | return NULL; | |
436 | } | |
437 | return rctx; | |
438 | } | |
439 | } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) { | |
440 | if (pctx->op.sig.signature != NULL) { | |
441 | rctx->op.sig.signature = pctx->op.sig.signature; | |
442 | if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature)) { | |
443 | OPENSSL_free(rctx); | |
444 | return NULL; | |
445 | } | |
446 | } | |
447 | if (pctx->op.sig.sigprovctx != NULL) { | |
448 | if (!ossl_assert(pctx->op.sig.signature != NULL)) | |
449 | return NULL; | |
450 | rctx->op.sig.sigprovctx | |
451 | = pctx->op.sig.signature->dupctx(pctx->op.sig.sigprovctx); | |
452 | if (rctx->op.sig.sigprovctx == NULL) { | |
453 | EVP_SIGNATURE_free(rctx->op.sig.signature); | |
454 | OPENSSL_free(rctx); | |
455 | return NULL; | |
456 | } | |
457 | return rctx; | |
458 | } | |
459 | } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) { | |
460 | if (pctx->op.ciph.cipher != NULL) { | |
461 | rctx->op.ciph.cipher = pctx->op.ciph.cipher; | |
462 | if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher)) { | |
463 | OPENSSL_free(rctx); | |
464 | return NULL; | |
465 | } | |
466 | } | |
467 | if (pctx->op.ciph.ciphprovctx != NULL) { | |
468 | if (!ossl_assert(pctx->op.ciph.cipher != NULL)) | |
469 | return NULL; | |
470 | rctx->op.ciph.ciphprovctx | |
471 | = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.ciphprovctx); | |
472 | if (rctx->op.ciph.ciphprovctx == NULL) { | |
473 | EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher); | |
474 | OPENSSL_free(rctx); | |
475 | return NULL; | |
476 | } | |
477 | return rctx; | |
478 | } | |
479 | } | |
480 | ||
481 | rctx->pmeth = pctx->pmeth; | |
482 | # ifndef OPENSSL_NO_ENGINE | |
483 | rctx->engine = pctx->engine; | |
484 | # endif | |
485 | ||
486 | if (pctx->peerkey) | |
487 | EVP_PKEY_up_ref(pctx->peerkey); | |
488 | rctx->peerkey = pctx->peerkey; | |
489 | ||
490 | if (pctx->pmeth->copy(rctx, pctx) > 0) | |
491 | return rctx; | |
492 | ||
493 | rctx->pmeth = NULL; | |
494 | EVP_PKEY_CTX_free(rctx); | |
495 | return NULL; | |
496 | ||
497 | } | |
498 | ||
499 | int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth) | |
500 | { | |
501 | if (app_pkey_methods == NULL) { | |
502 | app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp); | |
503 | if (app_pkey_methods == NULL){ | |
504 | EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE); | |
505 | return 0; | |
506 | } | |
507 | } | |
508 | if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) { | |
509 | EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE); | |
510 | return 0; | |
511 | } | |
512 | sk_EVP_PKEY_METHOD_sort(app_pkey_methods); | |
513 | return 1; | |
514 | } | |
515 | ||
516 | void evp_app_cleanup_int(void) | |
517 | { | |
518 | if (app_pkey_methods != NULL) | |
519 | sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free); | |
520 | } | |
521 | ||
522 | int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth) | |
523 | { | |
524 | const EVP_PKEY_METHOD *ret; | |
525 | ||
526 | ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth); | |
527 | ||
528 | return ret == NULL ? 0 : 1; | |
529 | } | |
530 | ||
531 | size_t EVP_PKEY_meth_get_count(void) | |
532 | { | |
533 | size_t rv = OSSL_NELEM(standard_methods); | |
534 | ||
535 | if (app_pkey_methods) | |
536 | rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods); | |
537 | return rv; | |
538 | } | |
539 | ||
540 | const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx) | |
541 | { | |
542 | if (idx < OSSL_NELEM(standard_methods)) | |
543 | return (standard_methods[idx])(); | |
544 | if (app_pkey_methods == NULL) | |
545 | return NULL; | |
546 | idx -= OSSL_NELEM(standard_methods); | |
547 | if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods)) | |
548 | return NULL; | |
549 | return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx); | |
550 | } | |
551 | #endif | |
552 | ||
553 | int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) | |
554 | { | |
555 | if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) | |
556 | && ctx->op.kex.exchprovctx != NULL | |
557 | && ctx->op.kex.exchange != NULL | |
558 | && ctx->op.kex.exchange->set_ctx_params != NULL) | |
559 | return ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.exchprovctx, | |
560 | params); | |
561 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
562 | && ctx->op.sig.sigprovctx != NULL | |
563 | && ctx->op.sig.signature != NULL | |
564 | && ctx->op.sig.signature->set_ctx_params != NULL) | |
565 | return ctx->op.sig.signature->set_ctx_params(ctx->op.sig.sigprovctx, | |
566 | params); | |
567 | if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
568 | && ctx->op.ciph.ciphprovctx != NULL | |
569 | && ctx->op.ciph.cipher != NULL | |
570 | && ctx->op.ciph.cipher->set_ctx_params != NULL) | |
571 | return ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.ciphprovctx, | |
572 | params); | |
573 | return 0; | |
574 | } | |
575 | ||
576 | #ifndef FIPS_MODE | |
577 | int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) | |
578 | { | |
579 | if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) | |
580 | && ctx->op.kex.exchprovctx != NULL | |
581 | && ctx->op.kex.exchange != NULL | |
582 | && ctx->op.kex.exchange->get_ctx_params != NULL) | |
583 | return ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.exchprovctx, | |
584 | params); | |
585 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
586 | && ctx->op.sig.sigprovctx != NULL | |
587 | && ctx->op.sig.signature != NULL | |
588 | && ctx->op.sig.signature->get_ctx_params != NULL) | |
589 | return ctx->op.sig.signature->get_ctx_params(ctx->op.sig.sigprovctx, | |
590 | params); | |
591 | if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
592 | && ctx->op.ciph.ciphprovctx != NULL | |
593 | && ctx->op.ciph.cipher != NULL | |
594 | && ctx->op.ciph.cipher->get_ctx_params != NULL) | |
595 | return ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.ciphprovctx, | |
596 | params); | |
597 | return 0; | |
598 | } | |
599 | ||
600 | const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX *ctx) | |
601 | { | |
602 | if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) | |
603 | && ctx->op.kex.exchange != NULL | |
604 | && ctx->op.kex.exchange->gettable_ctx_params != NULL) | |
605 | return ctx->op.kex.exchange->gettable_ctx_params(); | |
606 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
607 | && ctx->op.sig.signature != NULL | |
608 | && ctx->op.sig.signature->gettable_ctx_params != NULL) | |
609 | return ctx->op.sig.signature->gettable_ctx_params(); | |
610 | ||
611 | if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
612 | && ctx->op.ciph.cipher != NULL | |
613 | && ctx->op.ciph.cipher->gettable_ctx_params != NULL) | |
614 | return ctx->op.ciph.cipher->gettable_ctx_params(); | |
615 | ||
616 | return NULL; | |
617 | } | |
618 | ||
619 | const OSSL_PARAM *EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX *ctx) | |
620 | { | |
621 | if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx) | |
622 | && ctx->op.kex.exchange != NULL | |
623 | && ctx->op.kex.exchange->settable_ctx_params != NULL) | |
624 | return ctx->op.kex.exchange->settable_ctx_params(); | |
625 | if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
626 | && ctx->op.sig.signature != NULL | |
627 | && ctx->op.sig.signature->settable_ctx_params != NULL) | |
628 | return ctx->op.sig.signature->settable_ctx_params(); | |
629 | if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
630 | && ctx->op.ciph.cipher != NULL | |
631 | && ctx->op.ciph.cipher->settable_ctx_params != NULL) | |
632 | return ctx->op.ciph.cipher->settable_ctx_params(); | |
633 | ||
634 | return NULL; | |
635 | } | |
636 | ||
637 | /* | |
638 | * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params(). | |
639 | * | |
640 | * Return 1 on success, 0 or negative for errors. | |
641 | * | |
642 | * In particular they return -2 if any of the params is not supported. | |
643 | * | |
644 | * They are not available in FIPS_MODE as they depend on | |
645 | * - EVP_PKEY_CTX_{get,set}_params() | |
646 | * - EVP_PKEY_CTX_{gettable,settable}_params() | |
647 | * | |
648 | */ | |
649 | int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) | |
650 | { | |
651 | const OSSL_PARAM *p; | |
652 | ||
653 | if (ctx == NULL || params == NULL) | |
654 | return 0; | |
655 | ||
656 | for (p = params; p->key != NULL; p++) { | |
657 | /* Check the ctx actually understands this parameter */ | |
658 | if (OSSL_PARAM_locate_const(EVP_PKEY_CTX_settable_params(ctx), | |
659 | p->key) == NULL ) | |
660 | return -2; | |
661 | } | |
662 | ||
663 | return EVP_PKEY_CTX_set_params(ctx, params); | |
664 | } | |
665 | ||
666 | int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params) | |
667 | { | |
668 | const OSSL_PARAM *p; | |
669 | ||
670 | if (ctx == NULL || params == NULL) | |
671 | return 0; | |
672 | ||
673 | for (p = params; p->key != NULL; p++ ) { | |
674 | /* Check the ctx actually understands this parameter */ | |
675 | if (OSSL_PARAM_locate_const(EVP_PKEY_CTX_gettable_params(ctx), | |
676 | p->key) == NULL ) | |
677 | return -2; | |
678 | } | |
679 | ||
680 | return EVP_PKEY_CTX_get_params(ctx, params); | |
681 | } | |
682 | ||
683 | # ifndef OPENSSL_NO_DH | |
684 | int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad) | |
685 | { | |
686 | OSSL_PARAM dh_pad_params[2]; | |
687 | unsigned int upad = pad; | |
688 | ||
689 | /* We use EVP_PKEY_CTX_ctrl return values */ | |
690 | if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) { | |
691 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
692 | return -2; | |
693 | } | |
694 | ||
695 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
696 | if (ctx->op.kex.exchprovctx == NULL) | |
697 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE, | |
698 | EVP_PKEY_CTRL_DH_PAD, pad, NULL); | |
699 | ||
700 | dh_pad_params[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD, &upad); | |
701 | dh_pad_params[1] = OSSL_PARAM_construct_end(); | |
702 | ||
703 | return EVP_PKEY_CTX_set_params(ctx, dh_pad_params); | |
704 | } | |
705 | # endif | |
706 | ||
707 | int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md) | |
708 | { | |
709 | OSSL_PARAM sig_md_params[3], *p = sig_md_params; | |
710 | /* 80 should be big enough */ | |
711 | char name[80] = ""; | |
712 | const EVP_MD *tmp; | |
713 | ||
714 | if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { | |
715 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
716 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
717 | return -2; | |
718 | } | |
719 | ||
720 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
721 | if (ctx->op.sig.sigprovctx == NULL) | |
722 | return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, | |
723 | EVP_PKEY_CTRL_GET_MD, 0, (void *)(md)); | |
724 | ||
725 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, | |
726 | name, | |
727 | sizeof(name)); | |
728 | *p++ = OSSL_PARAM_construct_end(); | |
729 | ||
730 | if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params)) | |
731 | return 0; | |
732 | ||
733 | tmp = evp_get_digestbyname_ex(ctx->libctx, name); | |
734 | if (tmp == NULL) | |
735 | return 0; | |
736 | ||
737 | *md = tmp; | |
738 | ||
739 | return 1; | |
740 | } | |
741 | ||
742 | int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) | |
743 | { | |
744 | OSSL_PARAM sig_md_params[2], *p = sig_md_params; | |
745 | const char *name; | |
746 | ||
747 | if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) { | |
748 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
749 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
750 | return -2; | |
751 | } | |
752 | ||
753 | /* TODO(3.0): Remove this eventually when no more legacy */ | |
754 | if (ctx->op.sig.sigprovctx == NULL) | |
755 | return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, | |
756 | EVP_PKEY_CTRL_MD, 0, (void *)(md)); | |
757 | ||
758 | if (md == NULL) { | |
759 | name = ""; | |
760 | } else { | |
761 | name = EVP_MD_name(md); | |
762 | } | |
763 | ||
764 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, | |
765 | /* | |
766 | * Cast away the const. This is read | |
767 | * only so should be safe | |
768 | */ | |
769 | (char *)name, 0); | |
770 | *p++ = OSSL_PARAM_construct_end(); | |
771 | ||
772 | return EVP_PKEY_CTX_set_params(ctx, sig_md_params); | |
773 | } | |
774 | ||
775 | static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype, | |
776 | int cmd, int p1, void *p2) | |
777 | { | |
778 | # ifndef OPENSSL_NO_DH | |
779 | if (keytype == EVP_PKEY_DH) { | |
780 | switch (cmd) { | |
781 | case EVP_PKEY_CTRL_DH_PAD: | |
782 | return EVP_PKEY_CTX_set_dh_pad(ctx, p1); | |
783 | } | |
784 | } | |
785 | # endif | |
786 | # ifndef OPENSSL_NO_EC | |
787 | if (keytype == EVP_PKEY_EC) { | |
788 | switch (cmd) { | |
789 | case EVP_PKEY_CTRL_EC_ECDH_COFACTOR: | |
790 | if (p1 == -2) { | |
791 | return EVP_PKEY_CTX_get_ecdh_cofactor_mode(ctx); | |
792 | } else if (p1 < -1 || p1 > 1) { | |
793 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
794 | return -2; | |
795 | } else { | |
796 | return EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, p1); | |
797 | } | |
798 | case EVP_PKEY_CTRL_EC_KDF_TYPE: | |
799 | if (p1 == -2) { | |
800 | return EVP_PKEY_CTX_get_ecdh_kdf_type(ctx); | |
801 | } else { | |
802 | return EVP_PKEY_CTX_set_ecdh_kdf_type(ctx, p1); | |
803 | } | |
804 | case EVP_PKEY_CTRL_GET_EC_KDF_MD: | |
805 | return EVP_PKEY_CTX_get_ecdh_kdf_md(ctx, p2); | |
806 | case EVP_PKEY_CTRL_EC_KDF_MD: | |
807 | return EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, p2); | |
808 | case EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN: | |
809 | return EVP_PKEY_CTX_get_ecdh_kdf_outlen(ctx, p2); | |
810 | case EVP_PKEY_CTRL_EC_KDF_OUTLEN: | |
811 | return EVP_PKEY_CTX_set_ecdh_kdf_outlen(ctx, p1); | |
812 | case EVP_PKEY_CTRL_GET_EC_KDF_UKM: | |
813 | return EVP_PKEY_CTX_get0_ecdh_kdf_ukm(ctx, p2); | |
814 | case EVP_PKEY_CTRL_EC_KDF_UKM: | |
815 | return EVP_PKEY_CTX_set0_ecdh_kdf_ukm(ctx, p2, p1); | |
816 | } | |
817 | } | |
818 | # endif | |
819 | if (keytype == -1) { | |
820 | switch (cmd) { | |
821 | case EVP_PKEY_CTRL_MD: | |
822 | return EVP_PKEY_CTX_set_signature_md(ctx, p2); | |
823 | case EVP_PKEY_CTRL_GET_MD: | |
824 | return EVP_PKEY_CTX_get_signature_md(ctx, p2); | |
825 | case EVP_PKEY_CTRL_RSA_PADDING: | |
826 | return EVP_PKEY_CTX_set_rsa_padding(ctx, p1); | |
827 | case EVP_PKEY_CTRL_GET_RSA_PADDING: | |
828 | return EVP_PKEY_CTX_get_rsa_padding(ctx, p2); | |
829 | case EVP_PKEY_CTRL_RSA_OAEP_MD: | |
830 | return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2); | |
831 | case EVP_PKEY_CTRL_GET_RSA_OAEP_MD: | |
832 | return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2); | |
833 | case EVP_PKEY_CTRL_RSA_MGF1_MD: | |
834 | return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2); | |
835 | case EVP_PKEY_CTRL_GET_RSA_MGF1_MD: | |
836 | return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2); | |
837 | case EVP_PKEY_CTRL_RSA_OAEP_LABEL: | |
838 | return EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, p2, p1); | |
839 | case EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL: | |
840 | return EVP_PKEY_CTX_get0_rsa_oaep_label(ctx, (unsigned char **)p2); | |
841 | case EVP_PKEY_CTRL_PKCS7_ENCRYPT: | |
842 | case EVP_PKEY_CTRL_PKCS7_DECRYPT: | |
843 | # ifndef OPENSSL_NO_CMS | |
844 | case EVP_PKEY_CTRL_CMS_DECRYPT: | |
845 | case EVP_PKEY_CTRL_CMS_ENCRYPT: | |
846 | # endif | |
847 | if (ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS) | |
848 | return 1; | |
849 | ERR_raise(ERR_LIB_EVP, | |
850 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
851 | return -2; | |
852 | } | |
853 | } | |
854 | return 0; | |
855 | } | |
856 | ||
857 | int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, | |
858 | int cmd, int p1, void *p2) | |
859 | { | |
860 | int ret; | |
861 | ||
862 | if (ctx == NULL) { | |
863 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); | |
864 | return -2; | |
865 | } | |
866 | ||
867 | if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL) | |
868 | || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
869 | && ctx->op.sig.sigprovctx != NULL) | |
870 | || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
871 | && ctx->op.ciph.ciphprovctx != NULL)) | |
872 | return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2); | |
873 | ||
874 | if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) { | |
875 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); | |
876 | return -2; | |
877 | } | |
878 | if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype)) | |
879 | return -1; | |
880 | ||
881 | /* Skip the operation checks since this is called in a very early stage */ | |
882 | if (ctx->pmeth->digest_custom != NULL) | |
883 | goto doit; | |
884 | ||
885 | if (ctx->operation == EVP_PKEY_OP_UNDEFINED) { | |
886 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET); | |
887 | return -1; | |
888 | } | |
889 | ||
890 | if ((optype != -1) && !(ctx->operation & optype)) { | |
891 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION); | |
892 | return -1; | |
893 | } | |
894 | ||
895 | doit: | |
896 | ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2); | |
897 | ||
898 | if (ret == -2) | |
899 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); | |
900 | ||
901 | return ret; | |
902 | } | |
903 | ||
904 | int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype, | |
905 | int cmd, uint64_t value) | |
906 | { | |
907 | return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value); | |
908 | } | |
909 | ||
910 | static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name, | |
911 | const char *value) | |
912 | { | |
913 | if (strcmp(name, "rsa_padding_mode") == 0) | |
914 | name = OSSL_ASYM_CIPHER_PARAM_PAD_MODE; | |
915 | else if (strcmp(name, "rsa_mgf1_md") == 0) | |
916 | name = OSSL_ASYM_CIPHER_PARAM_MGF1_DIGEST; | |
917 | else if (strcmp(name, "rsa_oaep_md") == 0) | |
918 | name = OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST; | |
919 | else if (strcmp(name, "rsa_oaep_label") == 0) | |
920 | name = OSSL_ASYM_CIPHER_PARAM_OAEP_LABEL; | |
921 | # ifndef OPENSSL_NO_DH | |
922 | else if (strcmp(name, "dh_pad") == 0) | |
923 | name = OSSL_EXCHANGE_PARAM_PAD; | |
924 | # endif | |
925 | # ifndef OPENSSL_NO_EC | |
926 | else if (strcmp(name, "ecdh_cofactor_mode") == 0) | |
927 | name = OSSL_EXCHANGE_PARAM_EC_ECDH_COFACTOR_MODE; | |
928 | else if (strcmp(name, "ecdh_kdf_md") == 0) | |
929 | name = OSSL_EXCHANGE_PARAM_KDF_TYPE; | |
930 | # endif | |
931 | ||
932 | { | |
933 | /* | |
934 | * TODO(3.0) reduce the code above to only translate known legacy | |
935 | * string to the corresponding core name (see core_names.h), but | |
936 | * otherwise leave it to this code block to do the actual work. | |
937 | */ | |
938 | const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx); | |
939 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
940 | int rv = 0; | |
941 | ||
942 | if (!OSSL_PARAM_allocate_from_text(¶ms[0], settable, name, value, | |
943 | strlen(value), NULL)) | |
944 | return 0; | |
945 | if (EVP_PKEY_CTX_set_params(ctx, params)) | |
946 | rv = 1; | |
947 | OPENSSL_free(params[0].data); | |
948 | return rv; | |
949 | } | |
950 | } | |
951 | ||
952 | int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, | |
953 | const char *name, const char *value) | |
954 | { | |
955 | if (ctx == NULL) { | |
956 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED); | |
957 | return -2; | |
958 | } | |
959 | ||
960 | if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL) | |
961 | || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) | |
962 | && ctx->op.sig.sigprovctx != NULL) | |
963 | || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) | |
964 | && ctx->op.ciph.ciphprovctx != NULL)) | |
965 | return legacy_ctrl_str_to_param(ctx, name, value); | |
966 | ||
967 | if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) { | |
968 | EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED); | |
969 | return -2; | |
970 | } | |
971 | if (strcmp(name, "digest") == 0) | |
972 | return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD, | |
973 | value); | |
974 | return ctx->pmeth->ctrl_str(ctx, name, value); | |
975 | } | |
976 | ||
977 | /* Utility functions to send a string of hex string to a ctrl */ | |
978 | ||
979 | int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str) | |
980 | { | |
981 | size_t len; | |
982 | ||
983 | len = strlen(str); | |
984 | if (len > INT_MAX) | |
985 | return -1; | |
986 | return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str); | |
987 | } | |
988 | ||
989 | int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex) | |
990 | { | |
991 | unsigned char *bin; | |
992 | long binlen; | |
993 | int rv = -1; | |
994 | ||
995 | bin = OPENSSL_hexstr2buf(hex, &binlen); | |
996 | if (bin == NULL) | |
997 | return 0; | |
998 | if (binlen <= INT_MAX) | |
999 | rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin); | |
1000 | OPENSSL_free(bin); | |
1001 | return rv; | |
1002 | } | |
1003 | ||
1004 | /* Pass a message digest to a ctrl */ | |
1005 | int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md) | |
1006 | { | |
1007 | const EVP_MD *m; | |
1008 | ||
1009 | if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) { | |
1010 | EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST); | |
1011 | return 0; | |
1012 | } | |
1013 | return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m); | |
1014 | } | |
1015 | ||
1016 | int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx) | |
1017 | { | |
1018 | return ctx->operation; | |
1019 | } | |
1020 | ||
1021 | void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen) | |
1022 | { | |
1023 | ctx->keygen_info = dat; | |
1024 | ctx->keygen_info_count = datlen; | |
1025 | } | |
1026 | ||
1027 | void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data) | |
1028 | { | |
1029 | ctx->data = data; | |
1030 | } | |
1031 | ||
1032 | void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx) | |
1033 | { | |
1034 | return ctx->data; | |
1035 | } | |
1036 | ||
1037 | EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx) | |
1038 | { | |
1039 | return ctx->pkey; | |
1040 | } | |
1041 | ||
1042 | EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx) | |
1043 | { | |
1044 | return ctx->peerkey; | |
1045 | } | |
1046 | ||
1047 | void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data) | |
1048 | { | |
1049 | ctx->app_data = data; | |
1050 | } | |
1051 | ||
1052 | void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx) | |
1053 | { | |
1054 | return ctx->app_data; | |
1055 | } | |
1056 | ||
1057 | void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth, | |
1058 | int (*init) (EVP_PKEY_CTX *ctx)) | |
1059 | { | |
1060 | pmeth->init = init; | |
1061 | } | |
1062 | ||
1063 | void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth, | |
1064 | int (*copy) (EVP_PKEY_CTX *dst, | |
1065 | const EVP_PKEY_CTX *src)) | |
1066 | { | |
1067 | pmeth->copy = copy; | |
1068 | } | |
1069 | ||
1070 | void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth, | |
1071 | void (*cleanup) (EVP_PKEY_CTX *ctx)) | |
1072 | { | |
1073 | pmeth->cleanup = cleanup; | |
1074 | } | |
1075 | ||
1076 | void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth, | |
1077 | int (*paramgen_init) (EVP_PKEY_CTX *ctx), | |
1078 | int (*paramgen) (EVP_PKEY_CTX *ctx, | |
1079 | EVP_PKEY *pkey)) | |
1080 | { | |
1081 | pmeth->paramgen_init = paramgen_init; | |
1082 | pmeth->paramgen = paramgen; | |
1083 | } | |
1084 | ||
1085 | void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth, | |
1086 | int (*keygen_init) (EVP_PKEY_CTX *ctx), | |
1087 | int (*keygen) (EVP_PKEY_CTX *ctx, | |
1088 | EVP_PKEY *pkey)) | |
1089 | { | |
1090 | pmeth->keygen_init = keygen_init; | |
1091 | pmeth->keygen = keygen; | |
1092 | } | |
1093 | ||
1094 | void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth, | |
1095 | int (*sign_init) (EVP_PKEY_CTX *ctx), | |
1096 | int (*sign) (EVP_PKEY_CTX *ctx, | |
1097 | unsigned char *sig, size_t *siglen, | |
1098 | const unsigned char *tbs, | |
1099 | size_t tbslen)) | |
1100 | { | |
1101 | pmeth->sign_init = sign_init; | |
1102 | pmeth->sign = sign; | |
1103 | } | |
1104 | ||
1105 | void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth, | |
1106 | int (*verify_init) (EVP_PKEY_CTX *ctx), | |
1107 | int (*verify) (EVP_PKEY_CTX *ctx, | |
1108 | const unsigned char *sig, | |
1109 | size_t siglen, | |
1110 | const unsigned char *tbs, | |
1111 | size_t tbslen)) | |
1112 | { | |
1113 | pmeth->verify_init = verify_init; | |
1114 | pmeth->verify = verify; | |
1115 | } | |
1116 | ||
1117 | void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth, | |
1118 | int (*verify_recover_init) (EVP_PKEY_CTX | |
1119 | *ctx), | |
1120 | int (*verify_recover) (EVP_PKEY_CTX | |
1121 | *ctx, | |
1122 | unsigned char | |
1123 | *sig, | |
1124 | size_t *siglen, | |
1125 | const unsigned | |
1126 | char *tbs, | |
1127 | size_t tbslen)) | |
1128 | { | |
1129 | pmeth->verify_recover_init = verify_recover_init; | |
1130 | pmeth->verify_recover = verify_recover; | |
1131 | } | |
1132 | ||
1133 | void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth, | |
1134 | int (*signctx_init) (EVP_PKEY_CTX *ctx, | |
1135 | EVP_MD_CTX *mctx), | |
1136 | int (*signctx) (EVP_PKEY_CTX *ctx, | |
1137 | unsigned char *sig, | |
1138 | size_t *siglen, | |
1139 | EVP_MD_CTX *mctx)) | |
1140 | { | |
1141 | pmeth->signctx_init = signctx_init; | |
1142 | pmeth->signctx = signctx; | |
1143 | } | |
1144 | ||
1145 | void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth, | |
1146 | int (*verifyctx_init) (EVP_PKEY_CTX *ctx, | |
1147 | EVP_MD_CTX *mctx), | |
1148 | int (*verifyctx) (EVP_PKEY_CTX *ctx, | |
1149 | const unsigned char *sig, | |
1150 | int siglen, | |
1151 | EVP_MD_CTX *mctx)) | |
1152 | { | |
1153 | pmeth->verifyctx_init = verifyctx_init; | |
1154 | pmeth->verifyctx = verifyctx; | |
1155 | } | |
1156 | ||
1157 | void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth, | |
1158 | int (*encrypt_init) (EVP_PKEY_CTX *ctx), | |
1159 | int (*encryptfn) (EVP_PKEY_CTX *ctx, | |
1160 | unsigned char *out, | |
1161 | size_t *outlen, | |
1162 | const unsigned char *in, | |
1163 | size_t inlen)) | |
1164 | { | |
1165 | pmeth->encrypt_init = encrypt_init; | |
1166 | pmeth->encrypt = encryptfn; | |
1167 | } | |
1168 | ||
1169 | void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth, | |
1170 | int (*decrypt_init) (EVP_PKEY_CTX *ctx), | |
1171 | int (*decrypt) (EVP_PKEY_CTX *ctx, | |
1172 | unsigned char *out, | |
1173 | size_t *outlen, | |
1174 | const unsigned char *in, | |
1175 | size_t inlen)) | |
1176 | { | |
1177 | pmeth->decrypt_init = decrypt_init; | |
1178 | pmeth->decrypt = decrypt; | |
1179 | } | |
1180 | ||
1181 | void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth, | |
1182 | int (*derive_init) (EVP_PKEY_CTX *ctx), | |
1183 | int (*derive) (EVP_PKEY_CTX *ctx, | |
1184 | unsigned char *key, | |
1185 | size_t *keylen)) | |
1186 | { | |
1187 | pmeth->derive_init = derive_init; | |
1188 | pmeth->derive = derive; | |
1189 | } | |
1190 | ||
1191 | void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth, | |
1192 | int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, | |
1193 | void *p2), | |
1194 | int (*ctrl_str) (EVP_PKEY_CTX *ctx, | |
1195 | const char *type, | |
1196 | const char *value)) | |
1197 | { | |
1198 | pmeth->ctrl = ctrl; | |
1199 | pmeth->ctrl_str = ctrl_str; | |
1200 | } | |
1201 | ||
1202 | void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth, | |
1203 | int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen, | |
1204 | const unsigned char *tbs, size_t tbslen)) | |
1205 | { | |
1206 | pmeth->digestsign = digestsign; | |
1207 | } | |
1208 | ||
1209 | void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth, | |
1210 | int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig, | |
1211 | size_t siglen, const unsigned char *tbs, | |
1212 | size_t tbslen)) | |
1213 | { | |
1214 | pmeth->digestverify = digestverify; | |
1215 | } | |
1216 | ||
1217 | void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth, | |
1218 | int (*check) (EVP_PKEY *pkey)) | |
1219 | { | |
1220 | pmeth->check = check; | |
1221 | } | |
1222 | ||
1223 | void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth, | |
1224 | int (*check) (EVP_PKEY *pkey)) | |
1225 | { | |
1226 | pmeth->public_check = check; | |
1227 | } | |
1228 | ||
1229 | void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth, | |
1230 | int (*check) (EVP_PKEY *pkey)) | |
1231 | { | |
1232 | pmeth->param_check = check; | |
1233 | } | |
1234 | ||
1235 | void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth, | |
1236 | int (*digest_custom) (EVP_PKEY_CTX *ctx, | |
1237 | EVP_MD_CTX *mctx)) | |
1238 | { | |
1239 | pmeth->digest_custom = digest_custom; | |
1240 | } | |
1241 | ||
1242 | void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth, | |
1243 | int (**pinit) (EVP_PKEY_CTX *ctx)) | |
1244 | { | |
1245 | *pinit = pmeth->init; | |
1246 | } | |
1247 | ||
1248 | void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth, | |
1249 | int (**pcopy) (EVP_PKEY_CTX *dst, | |
1250 | const EVP_PKEY_CTX *src)) | |
1251 | { | |
1252 | *pcopy = pmeth->copy; | |
1253 | } | |
1254 | ||
1255 | void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth, | |
1256 | void (**pcleanup) (EVP_PKEY_CTX *ctx)) | |
1257 | { | |
1258 | *pcleanup = pmeth->cleanup; | |
1259 | } | |
1260 | ||
1261 | void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth, | |
1262 | int (**pparamgen_init) (EVP_PKEY_CTX *ctx), | |
1263 | int (**pparamgen) (EVP_PKEY_CTX *ctx, | |
1264 | EVP_PKEY *pkey)) | |
1265 | { | |
1266 | if (pparamgen_init) | |
1267 | *pparamgen_init = pmeth->paramgen_init; | |
1268 | if (pparamgen) | |
1269 | *pparamgen = pmeth->paramgen; | |
1270 | } | |
1271 | ||
1272 | void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth, | |
1273 | int (**pkeygen_init) (EVP_PKEY_CTX *ctx), | |
1274 | int (**pkeygen) (EVP_PKEY_CTX *ctx, | |
1275 | EVP_PKEY *pkey)) | |
1276 | { | |
1277 | if (pkeygen_init) | |
1278 | *pkeygen_init = pmeth->keygen_init; | |
1279 | if (pkeygen) | |
1280 | *pkeygen = pmeth->keygen; | |
1281 | } | |
1282 | ||
1283 | void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth, | |
1284 | int (**psign_init) (EVP_PKEY_CTX *ctx), | |
1285 | int (**psign) (EVP_PKEY_CTX *ctx, | |
1286 | unsigned char *sig, size_t *siglen, | |
1287 | const unsigned char *tbs, | |
1288 | size_t tbslen)) | |
1289 | { | |
1290 | if (psign_init) | |
1291 | *psign_init = pmeth->sign_init; | |
1292 | if (psign) | |
1293 | *psign = pmeth->sign; | |
1294 | } | |
1295 | ||
1296 | void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth, | |
1297 | int (**pverify_init) (EVP_PKEY_CTX *ctx), | |
1298 | int (**pverify) (EVP_PKEY_CTX *ctx, | |
1299 | const unsigned char *sig, | |
1300 | size_t siglen, | |
1301 | const unsigned char *tbs, | |
1302 | size_t tbslen)) | |
1303 | { | |
1304 | if (pverify_init) | |
1305 | *pverify_init = pmeth->verify_init; | |
1306 | if (pverify) | |
1307 | *pverify = pmeth->verify; | |
1308 | } | |
1309 | ||
1310 | void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth, | |
1311 | int (**pverify_recover_init) (EVP_PKEY_CTX | |
1312 | *ctx), | |
1313 | int (**pverify_recover) (EVP_PKEY_CTX | |
1314 | *ctx, | |
1315 | unsigned char | |
1316 | *sig, | |
1317 | size_t *siglen, | |
1318 | const unsigned | |
1319 | char *tbs, | |
1320 | size_t tbslen)) | |
1321 | { | |
1322 | if (pverify_recover_init) | |
1323 | *pverify_recover_init = pmeth->verify_recover_init; | |
1324 | if (pverify_recover) | |
1325 | *pverify_recover = pmeth->verify_recover; | |
1326 | } | |
1327 | ||
1328 | void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth, | |
1329 | int (**psignctx_init) (EVP_PKEY_CTX *ctx, | |
1330 | EVP_MD_CTX *mctx), | |
1331 | int (**psignctx) (EVP_PKEY_CTX *ctx, | |
1332 | unsigned char *sig, | |
1333 | size_t *siglen, | |
1334 | EVP_MD_CTX *mctx)) | |
1335 | { | |
1336 | if (psignctx_init) | |
1337 | *psignctx_init = pmeth->signctx_init; | |
1338 | if (psignctx) | |
1339 | *psignctx = pmeth->signctx; | |
1340 | } | |
1341 | ||
1342 | void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth, | |
1343 | int (**pverifyctx_init) (EVP_PKEY_CTX *ctx, | |
1344 | EVP_MD_CTX *mctx), | |
1345 | int (**pverifyctx) (EVP_PKEY_CTX *ctx, | |
1346 | const unsigned char *sig, | |
1347 | int siglen, | |
1348 | EVP_MD_CTX *mctx)) | |
1349 | { | |
1350 | if (pverifyctx_init) | |
1351 | *pverifyctx_init = pmeth->verifyctx_init; | |
1352 | if (pverifyctx) | |
1353 | *pverifyctx = pmeth->verifyctx; | |
1354 | } | |
1355 | ||
1356 | void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth, | |
1357 | int (**pencrypt_init) (EVP_PKEY_CTX *ctx), | |
1358 | int (**pencryptfn) (EVP_PKEY_CTX *ctx, | |
1359 | unsigned char *out, | |
1360 | size_t *outlen, | |
1361 | const unsigned char *in, | |
1362 | size_t inlen)) | |
1363 | { | |
1364 | if (pencrypt_init) | |
1365 | *pencrypt_init = pmeth->encrypt_init; | |
1366 | if (pencryptfn) | |
1367 | *pencryptfn = pmeth->encrypt; | |
1368 | } | |
1369 | ||
1370 | void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth, | |
1371 | int (**pdecrypt_init) (EVP_PKEY_CTX *ctx), | |
1372 | int (**pdecrypt) (EVP_PKEY_CTX *ctx, | |
1373 | unsigned char *out, | |
1374 | size_t *outlen, | |
1375 | const unsigned char *in, | |
1376 | size_t inlen)) | |
1377 | { | |
1378 | if (pdecrypt_init) | |
1379 | *pdecrypt_init = pmeth->decrypt_init; | |
1380 | if (pdecrypt) | |
1381 | *pdecrypt = pmeth->decrypt; | |
1382 | } | |
1383 | ||
1384 | void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth, | |
1385 | int (**pderive_init) (EVP_PKEY_CTX *ctx), | |
1386 | int (**pderive) (EVP_PKEY_CTX *ctx, | |
1387 | unsigned char *key, | |
1388 | size_t *keylen)) | |
1389 | { | |
1390 | if (pderive_init) | |
1391 | *pderive_init = pmeth->derive_init; | |
1392 | if (pderive) | |
1393 | *pderive = pmeth->derive; | |
1394 | } | |
1395 | ||
1396 | void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth, | |
1397 | int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1, | |
1398 | void *p2), | |
1399 | int (**pctrl_str) (EVP_PKEY_CTX *ctx, | |
1400 | const char *type, | |
1401 | const char *value)) | |
1402 | { | |
1403 | if (pctrl) | |
1404 | *pctrl = pmeth->ctrl; | |
1405 | if (pctrl_str) | |
1406 | *pctrl_str = pmeth->ctrl_str; | |
1407 | } | |
1408 | ||
1409 | void EVP_PKEY_meth_get_digestsign(EVP_PKEY_METHOD *pmeth, | |
1410 | int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen, | |
1411 | const unsigned char *tbs, size_t tbslen)) | |
1412 | { | |
1413 | if (digestsign) | |
1414 | *digestsign = pmeth->digestsign; | |
1415 | } | |
1416 | ||
1417 | void EVP_PKEY_meth_get_digestverify(EVP_PKEY_METHOD *pmeth, | |
1418 | int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig, | |
1419 | size_t siglen, const unsigned char *tbs, | |
1420 | size_t tbslen)) | |
1421 | { | |
1422 | if (digestverify) | |
1423 | *digestverify = pmeth->digestverify; | |
1424 | } | |
1425 | ||
1426 | void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth, | |
1427 | int (**pcheck) (EVP_PKEY *pkey)) | |
1428 | { | |
1429 | if (pcheck != NULL) | |
1430 | *pcheck = pmeth->check; | |
1431 | } | |
1432 | ||
1433 | void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth, | |
1434 | int (**pcheck) (EVP_PKEY *pkey)) | |
1435 | { | |
1436 | if (pcheck != NULL) | |
1437 | *pcheck = pmeth->public_check; | |
1438 | } | |
1439 | ||
1440 | void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth, | |
1441 | int (**pcheck) (EVP_PKEY *pkey)) | |
1442 | { | |
1443 | if (pcheck != NULL) | |
1444 | *pcheck = pmeth->param_check; | |
1445 | } | |
1446 | ||
1447 | void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth, | |
1448 | int (**pdigest_custom) (EVP_PKEY_CTX *ctx, | |
1449 | EVP_MD_CTX *mctx)) | |
1450 | { | |
1451 | if (pdigest_custom != NULL) | |
1452 | *pdigest_custom = pmeth->digest_custom; | |
1453 | } | |
1454 | ||
1455 | #endif /* FIPS_MODE */ |