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| 1 /* pmeth_lib.c */ |
| 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
| 3 * project 2006. |
| 4 */ |
| 5 /* ==================================================================== |
| 6 * Copyright (c) 2006 The OpenSSL Project. All rights reserved. |
| 7 * |
| 8 * Redistribution and use in source and binary forms, with or without |
| 9 * modification, are permitted provided that the following conditions |
| 10 * are met: |
| 11 * |
| 12 * 1. Redistributions of source code must retain the above copyright |
| 13 * notice, this list of conditions and the following disclaimer. |
| 14 * |
| 15 * 2. Redistributions in binary form must reproduce the above copyright |
| 16 * notice, this list of conditions and the following disclaimer in |
| 17 * the documentation and/or other materials provided with the |
| 18 * distribution. |
| 19 * |
| 20 * 3. All advertising materials mentioning features or use of this |
| 21 * software must display the following acknowledgment: |
| 22 * "This product includes software developed by the OpenSSL Project |
| 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
| 24 * |
| 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| 26 * endorse or promote products derived from this software without |
| 27 * prior written permission. For written permission, please contact |
| 28 * licensing@OpenSSL.org. |
| 29 * |
| 30 * 5. Products derived from this software may not be called "OpenSSL" |
| 31 * nor may "OpenSSL" appear in their names without prior written |
| 32 * permission of the OpenSSL Project. |
| 33 * |
| 34 * 6. Redistributions of any form whatsoever must retain the following |
| 35 * acknowledgment: |
| 36 * "This product includes software developed by the OpenSSL Project |
| 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
| 38 * |
| 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| 50 * OF THE POSSIBILITY OF SUCH DAMAGE. |
| 51 * ==================================================================== |
| 52 * |
| 53 * This product includes cryptographic software written by Eric Young |
| 54 * (eay@cryptsoft.com). This product includes software written by Tim |
| 55 * Hudson (tjh@cryptsoft.com). |
| 56 * |
| 57 */ |
| 58 |
| 59 #include <stdio.h> |
| 60 #include <stdlib.h> |
| 61 #include "cryptlib.h" |
| 62 #include <openssl/objects.h> |
| 63 #include <openssl/evp.h> |
| 64 #ifndef OPENSSL_NO_ENGINE |
| 65 #include <openssl/engine.h> |
| 66 #endif |
| 67 #include "asn1_locl.h" |
| 68 #include "evp_locl.h" |
| 69 |
| 70 typedef int sk_cmp_fn_type(const char * const *a, const char * const *b); |
| 71 |
| 72 DECLARE_STACK_OF(EVP_PKEY_METHOD) |
| 73 STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL; |
| 74 |
| 75 extern const EVP_PKEY_METHOD rsa_pkey_meth, dh_pkey_meth, dsa_pkey_meth; |
| 76 extern const EVP_PKEY_METHOD ec_pkey_meth, hmac_pkey_meth; |
| 77 |
| 78 static const EVP_PKEY_METHOD *standard_methods[] = |
| 79 { |
| 80 #ifndef OPENSSL_NO_RSA |
| 81 &rsa_pkey_meth, |
| 82 #endif |
| 83 #ifndef OPENSSL_NO_DH |
| 84 &dh_pkey_meth, |
| 85 #endif |
| 86 #ifndef OPENSSL_NO_DSA |
| 87 &dsa_pkey_meth, |
| 88 #endif |
| 89 #ifndef OPENSSL_NO_EC |
| 90 &ec_pkey_meth, |
| 91 #endif |
| 92 &hmac_pkey_meth, |
| 93 }; |
| 94 |
| 95 DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *, |
| 96 pmeth); |
| 97 |
| 98 static int pmeth_cmp(const EVP_PKEY_METHOD * const *a, |
| 99 const EVP_PKEY_METHOD * const *b) |
| 100 { |
| 101 return ((*a)->pkey_id - (*b)->pkey_id); |
| 102 } |
| 103 |
| 104 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *, |
| 105 pmeth); |
| 106 |
| 107 const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type) |
| 108 { |
| 109 EVP_PKEY_METHOD tmp; |
| 110 const EVP_PKEY_METHOD *t = &tmp, **ret; |
| 111 tmp.pkey_id = type; |
| 112 if (app_pkey_methods) |
| 113 { |
| 114 int idx; |
| 115 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp); |
| 116 if (idx >= 0) |
| 117 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx); |
| 118 } |
| 119 ret = OBJ_bsearch_pmeth(&t, standard_methods, |
| 120 sizeof(standard_methods)/sizeof(EVP_PKEY_METHOD *)); |
| 121 if (!ret || !*ret) |
| 122 return NULL; |
| 123 return *ret; |
| 124 } |
| 125 |
| 126 static EVP_PKEY_CTX *int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id) |
| 127 { |
| 128 EVP_PKEY_CTX *ret; |
| 129 const EVP_PKEY_METHOD *pmeth; |
| 130 if (id == -1) |
| 131 { |
| 132 if (!pkey || !pkey->ameth) |
| 133 return NULL; |
| 134 id = pkey->ameth->pkey_id; |
| 135 } |
| 136 #ifndef OPENSSL_NO_ENGINE |
| 137 if (pkey && pkey->engine) |
| 138 e = pkey->engine; |
| 139 /* Try to find an ENGINE which implements this method */ |
| 140 if (e) |
| 141 { |
| 142 if (!ENGINE_init(e)) |
| 143 { |
| 144 EVPerr(EVP_F_INT_CTX_NEW,ERR_R_ENGINE_LIB); |
| 145 return NULL; |
| 146 } |
| 147 } |
| 148 else |
| 149 e = ENGINE_get_pkey_meth_engine(id); |
| 150 |
| 151 /* If an ENGINE handled this method look it up. Othewise |
| 152 * use internal tables. |
| 153 */ |
| 154 |
| 155 if (e) |
| 156 pmeth = ENGINE_get_pkey_meth(e, id); |
| 157 else |
| 158 #endif |
| 159 pmeth = EVP_PKEY_meth_find(id); |
| 160 |
| 161 if (pmeth == NULL) |
| 162 { |
| 163 EVPerr(EVP_F_INT_CTX_NEW,EVP_R_UNSUPPORTED_ALGORITHM); |
| 164 return NULL; |
| 165 } |
| 166 |
| 167 ret = OPENSSL_malloc(sizeof(EVP_PKEY_CTX)); |
| 168 if (!ret) |
| 169 { |
| 170 #ifndef OPENSSL_NO_ENGINE |
| 171 if (e) |
| 172 ENGINE_finish(e); |
| 173 #endif |
| 174 EVPerr(EVP_F_INT_CTX_NEW,ERR_R_MALLOC_FAILURE); |
| 175 return NULL; |
| 176 } |
| 177 ret->engine = e; |
| 178 ret->pmeth = pmeth; |
| 179 ret->operation = EVP_PKEY_OP_UNDEFINED; |
| 180 ret->pkey = pkey; |
| 181 ret->peerkey = NULL; |
| 182 ret->pkey_gencb = 0; |
| 183 if (pkey) |
| 184 CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY); |
| 185 ret->data = NULL; |
| 186 |
| 187 if (pmeth->init) |
| 188 { |
| 189 if (pmeth->init(ret) <= 0) |
| 190 { |
| 191 EVP_PKEY_CTX_free(ret); |
| 192 return NULL; |
| 193 } |
| 194 } |
| 195 |
| 196 return ret; |
| 197 } |
| 198 |
| 199 EVP_PKEY_METHOD* EVP_PKEY_meth_new(int id, int flags) |
| 200 { |
| 201 EVP_PKEY_METHOD *pmeth; |
| 202 pmeth = OPENSSL_malloc(sizeof(EVP_PKEY_METHOD)); |
| 203 if (!pmeth) |
| 204 return NULL; |
| 205 |
| 206 pmeth->pkey_id = id; |
| 207 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC; |
| 208 |
| 209 pmeth->init = 0; |
| 210 pmeth->copy = 0; |
| 211 pmeth->cleanup = 0; |
| 212 pmeth->paramgen_init = 0; |
| 213 pmeth->paramgen = 0; |
| 214 pmeth->keygen_init = 0; |
| 215 pmeth->keygen = 0; |
| 216 pmeth->sign_init = 0; |
| 217 pmeth->sign = 0; |
| 218 pmeth->verify_init = 0; |
| 219 pmeth->verify = 0; |
| 220 pmeth->verify_recover_init = 0; |
| 221 pmeth->verify_recover = 0; |
| 222 pmeth->signctx_init = 0; |
| 223 pmeth->signctx = 0; |
| 224 pmeth->verifyctx_init = 0; |
| 225 pmeth->verifyctx = 0; |
| 226 pmeth->encrypt_init = 0; |
| 227 pmeth->encrypt = 0; |
| 228 pmeth->decrypt_init = 0; |
| 229 pmeth->decrypt = 0; |
| 230 pmeth->derive_init = 0; |
| 231 pmeth->derive = 0; |
| 232 pmeth->ctrl = 0; |
| 233 pmeth->ctrl_str = 0; |
| 234 |
| 235 return pmeth; |
| 236 } |
| 237 |
| 238 void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth) |
| 239 { |
| 240 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC)) |
| 241 OPENSSL_free(pmeth); |
| 242 } |
| 243 |
| 244 EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e) |
| 245 { |
| 246 return int_ctx_new(pkey, e, -1); |
| 247 } |
| 248 |
| 249 EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e) |
| 250 { |
| 251 return int_ctx_new(NULL, e, id); |
| 252 } |
| 253 |
| 254 EVP_PKEY_CTX *EVP_PKEY_CTX_dup(EVP_PKEY_CTX *pctx) |
| 255 { |
| 256 EVP_PKEY_CTX *rctx; |
| 257 if (!pctx->pmeth || !pctx->pmeth->copy) |
| 258 return NULL; |
| 259 #ifndef OPENSSL_NO_ENGINE |
| 260 /* Make sure it's safe to copy a pkey context using an ENGINE */ |
| 261 if (pctx->engine && !ENGINE_init(pctx->engine)) |
| 262 { |
| 263 EVPerr(EVP_F_EVP_PKEY_CTX_DUP,ERR_R_ENGINE_LIB); |
| 264 return 0; |
| 265 } |
| 266 #endif |
| 267 rctx = OPENSSL_malloc(sizeof(EVP_PKEY_CTX)); |
| 268 if (!rctx) |
| 269 return NULL; |
| 270 |
| 271 rctx->pmeth = pctx->pmeth; |
| 272 #ifndef OPENSSL_NO_ENGINE |
| 273 rctx->engine = pctx->engine; |
| 274 #endif |
| 275 |
| 276 if (pctx->pkey) |
| 277 CRYPTO_add(&pctx->pkey->references,1,CRYPTO_LOCK_EVP_PKEY); |
| 278 |
| 279 rctx->pkey = pctx->pkey; |
| 280 |
| 281 if (pctx->peerkey) |
| 282 CRYPTO_add(&pctx->peerkey->references,1,CRYPTO_LOCK_EVP_PKEY); |
| 283 |
| 284 rctx->peerkey = pctx->peerkey; |
| 285 |
| 286 rctx->data = NULL; |
| 287 rctx->app_data = NULL; |
| 288 rctx->operation = pctx->operation; |
| 289 |
| 290 if (pctx->pmeth->copy(rctx, pctx) > 0) |
| 291 return rctx; |
| 292 |
| 293 EVP_PKEY_CTX_free(rctx); |
| 294 return NULL; |
| 295 |
| 296 } |
| 297 |
| 298 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth) |
| 299 { |
| 300 if (app_pkey_methods == NULL) |
| 301 { |
| 302 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp); |
| 303 if (!app_pkey_methods) |
| 304 return 0; |
| 305 } |
| 306 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) |
| 307 return 0; |
| 308 sk_EVP_PKEY_METHOD_sort(app_pkey_methods); |
| 309 return 1; |
| 310 } |
| 311 |
| 312 void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx) |
| 313 { |
| 314 if (ctx == NULL) |
| 315 return; |
| 316 if (ctx->pmeth && ctx->pmeth->cleanup) |
| 317 ctx->pmeth->cleanup(ctx); |
| 318 if (ctx->pkey) |
| 319 EVP_PKEY_free(ctx->pkey); |
| 320 if (ctx->peerkey) |
| 321 EVP_PKEY_free(ctx->peerkey); |
| 322 #ifndef OPENSSL_NO_ENGINE |
| 323 if(ctx->engine) |
| 324 /* The EVP_PKEY_CTX we used belongs to an ENGINE, release the |
| 325 * functional reference we held for this reason. */ |
| 326 ENGINE_finish(ctx->engine); |
| 327 #endif |
| 328 OPENSSL_free(ctx); |
| 329 } |
| 330 |
| 331 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, |
| 332 int cmd, int p1, void *p2) |
| 333 { |
| 334 int ret; |
| 335 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl) |
| 336 { |
| 337 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); |
| 338 return -2; |
| 339 } |
| 340 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype)) |
| 341 return -1; |
| 342 |
| 343 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) |
| 344 { |
| 345 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET); |
| 346 return -1; |
| 347 } |
| 348 |
| 349 if ((optype != -1) && !(ctx->operation & optype)) |
| 350 { |
| 351 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION); |
| 352 return -1; |
| 353 } |
| 354 |
| 355 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2); |
| 356 |
| 357 if (ret == -2) |
| 358 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED); |
| 359 |
| 360 return ret; |
| 361 |
| 362 } |
| 363 |
| 364 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, |
| 365 const char *name, const char *value) |
| 366 { |
| 367 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) |
| 368 { |
| 369 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, |
| 370 EVP_R_COMMAND_NOT_SUPPORTED); |
| 371 return -2; |
| 372 } |
| 373 if (!strcmp(name, "digest")) |
| 374 { |
| 375 const EVP_MD *md; |
| 376 if (!value || !(md = EVP_get_digestbyname(value))) |
| 377 { |
| 378 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, |
| 379 EVP_R_INVALID_DIGEST); |
| 380 return 0; |
| 381 } |
| 382 return EVP_PKEY_CTX_set_signature_md(ctx, md); |
| 383 } |
| 384 return ctx->pmeth->ctrl_str(ctx, name, value); |
| 385 } |
| 386 |
| 387 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx) |
| 388 { |
| 389 return ctx->operation; |
| 390 } |
| 391 |
| 392 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen) |
| 393 { |
| 394 ctx->keygen_info = dat; |
| 395 ctx->keygen_info_count = datlen; |
| 396 } |
| 397 |
| 398 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data) |
| 399 { |
| 400 ctx->data = data; |
| 401 } |
| 402 |
| 403 void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx) |
| 404 { |
| 405 return ctx->data; |
| 406 } |
| 407 |
| 408 EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx) |
| 409 { |
| 410 return ctx->pkey; |
| 411 } |
| 412 |
| 413 EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx) |
| 414 { |
| 415 return ctx->peerkey; |
| 416 } |
| 417 |
| 418 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data) |
| 419 { |
| 420 ctx->app_data = data; |
| 421 } |
| 422 |
| 423 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx) |
| 424 { |
| 425 return ctx->app_data; |
| 426 } |
| 427 |
| 428 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth, |
| 429 int (*init)(EVP_PKEY_CTX *ctx)) |
| 430 { |
| 431 pmeth->init = init; |
| 432 } |
| 433 |
| 434 void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth, |
| 435 int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)) |
| 436 { |
| 437 pmeth->copy = copy; |
| 438 } |
| 439 |
| 440 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth, |
| 441 void (*cleanup)(EVP_PKEY_CTX *ctx)) |
| 442 { |
| 443 pmeth->cleanup = cleanup; |
| 444 } |
| 445 |
| 446 void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth, |
| 447 int (*paramgen_init)(EVP_PKEY_CTX *ctx), |
| 448 int (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)) |
| 449 { |
| 450 pmeth->paramgen_init = paramgen_init; |
| 451 pmeth->paramgen = paramgen; |
| 452 } |
| 453 |
| 454 void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth, |
| 455 int (*keygen_init)(EVP_PKEY_CTX *ctx), |
| 456 int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)) |
| 457 { |
| 458 pmeth->keygen_init = keygen_init; |
| 459 pmeth->keygen = keygen; |
| 460 } |
| 461 |
| 462 void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth, |
| 463 int (*sign_init)(EVP_PKEY_CTX *ctx), |
| 464 int (*sign)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, |
| 465 const unsigned char *tbs, size_t tbslen)
) |
| 466 { |
| 467 pmeth->sign_init = sign_init; |
| 468 pmeth->sign = sign; |
| 469 } |
| 470 |
| 471 void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth, |
| 472 int (*verify_init)(EVP_PKEY_CTX *ctx), |
| 473 int (*verify)(EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen
, |
| 474 const unsigned char *tbs, size_t tbslen)
) |
| 475 { |
| 476 pmeth->verify_init = verify_init; |
| 477 pmeth->verify = verify; |
| 478 } |
| 479 |
| 480 void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth, |
| 481 int (*verify_recover_init)(EVP_PKEY_CTX *ctx), |
| 482 int (*verify_recover)(EVP_PKEY_CTX *ctx, |
| 483 unsigned char *sig, size_t *siglen, |
| 484 const unsigned char *tbs, size_t tbslen)
) |
| 485 { |
| 486 pmeth->verify_recover_init = verify_recover_init; |
| 487 pmeth->verify_recover = verify_recover; |
| 488 } |
| 489 |
| 490 void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth, |
| 491 int (*signctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx), |
| 492 int (*signctx)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, |
| 493 EVP_MD_CTX *mctx)) |
| 494 { |
| 495 pmeth->signctx_init = signctx_init; |
| 496 pmeth->signctx = signctx; |
| 497 } |
| 498 |
| 499 void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth, |
| 500 int (*verifyctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx), |
| 501 int (*verifyctx)(EVP_PKEY_CTX *ctx, const unsigned char *sig,int siglen, |
| 502 EVP_MD_CTX *mctx)) |
| 503 { |
| 504 pmeth->verifyctx_init = verifyctx_init; |
| 505 pmeth->verifyctx = verifyctx; |
| 506 } |
| 507 |
| 508 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth, |
| 509 int (*encrypt_init)(EVP_PKEY_CTX *ctx), |
| 510 int (*encryptfn)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen, |
| 511 const unsigned char *in, size_t inlen)) |
| 512 { |
| 513 pmeth->encrypt_init = encrypt_init; |
| 514 pmeth->encrypt = encryptfn; |
| 515 } |
| 516 |
| 517 void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth, |
| 518 int (*decrypt_init)(EVP_PKEY_CTX *ctx), |
| 519 int (*decrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen, |
| 520 const unsigned char *in, size_t inlen)) |
| 521 { |
| 522 pmeth->decrypt_init = decrypt_init; |
| 523 pmeth->decrypt = decrypt; |
| 524 } |
| 525 |
| 526 void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth, |
| 527 int (*derive_init)(EVP_PKEY_CTX *ctx), |
| 528 int (*derive)(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen)) |
| 529 { |
| 530 pmeth->derive_init = derive_init; |
| 531 pmeth->derive = derive; |
| 532 } |
| 533 |
| 534 void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth, |
| 535 int (*ctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2), |
| 536 int (*ctrl_str)(EVP_PKEY_CTX *ctx, const char *type, const char *value)) |
| 537 { |
| 538 pmeth->ctrl = ctrl; |
| 539 pmeth->ctrl_str = ctrl_str; |
| 540 } |
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