crypto/evp/pmeth_lib.c

   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 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <openssl/engine.h>
  14 #include <openssl/evp.h>
  15 #include <openssl/x509v3.h>
  16 #include <openssl/core_names.h>
  17 #include <openssl/dh.h>
  18 #include "internal/cryptlib.h"
  19 #include "internal/asn1_int.h"
  20 #include "internal/evp_int.h"
  21 #include "internal/numbers.h"
  22 #include "evp_locl.h"
  23
  24 typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
  25
  26 static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
  27
  28 /* This array needs to be in order of NIDs */
  29 static const EVP_PKEY_METHOD *standard_methods[] = {
  30 #ifndef OPENSSL_NO_RSA
  31     &rsa_pkey_meth,
  32 #endif
  33 #ifndef OPENSSL_NO_DH
  34     &dh_pkey_meth,
  35 #endif
  36 #ifndef OPENSSL_NO_DSA
  37     &dsa_pkey_meth,
  38 #endif
  39 #ifndef OPENSSL_NO_EC
  40     &ec_pkey_meth,
  41 #endif
  42     &hmac_pkey_meth,
  43 #ifndef OPENSSL_NO_CMAC
  44     &cmac_pkey_meth,
  45 #endif
  46 #ifndef OPENSSL_NO_RSA
  47     &rsa_pss_pkey_meth,
  48 #endif
  49 #ifndef OPENSSL_NO_DH
  50     &dhx_pkey_meth,
  51 #endif
  52 #ifndef OPENSSL_NO_SCRYPT
  53     &scrypt_pkey_meth,
  54 #endif
  55     &tls1_prf_pkey_meth,
  56 #ifndef OPENSSL_NO_EC
  57     &ecx25519_pkey_meth,
  58     &ecx448_pkey_meth,
  59 #endif
  60     &hkdf_pkey_meth,
  61 #ifndef OPENSSL_NO_POLY1305
  62     &poly1305_pkey_meth,
  63 #endif
  64 #ifndef OPENSSL_NO_SIPHASH
  65     &siphash_pkey_meth,
  66 #endif
  67 #ifndef OPENSSL_NO_EC
  68     &ed25519_pkey_meth,
  69     &ed448_pkey_meth,
  70 #endif
  71 #ifndef OPENSSL_NO_SM2
  72     &sm2_pkey_meth,
  73 #endif
  74 };
  75
  76 DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
  77                            pmeth);
  78
  79 static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
  80                      const EVP_PKEY_METHOD *const *b)
  81 {
  82     return ((*a)->pkey_id - (*b)->pkey_id);
  83 }
  84
  85 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
  86                              pmeth);
  87
  88 const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
  89 {
  90     EVP_PKEY_METHOD tmp;
  91     const EVP_PKEY_METHOD *t = &tmp, **ret;
  92     tmp.pkey_id = type;
  93     if (app_pkey_methods) {
  94         int idx;
  95         idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
  96         if (idx >= 0)
  97             return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
  98     }
  99     ret = OBJ_bsearch_pmeth(&t, standard_methods,
 100                             sizeof(standard_methods) /
 101                             sizeof(EVP_PKEY_METHOD *));
 102     if (!ret || !*ret)
 103         return NULL;
 104     return *ret;
 105 }
 106
 107 static EVP_PKEY_CTX *int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id)
 108 {
 109     EVP_PKEY_CTX *ret;
 110     const EVP_PKEY_METHOD *pmeth = NULL;
 111
 112     /*
 113      * When using providers, the context is bound to the algo implementation
 114      * later.
 115      */
 116     if (pkey == NULL && e == NULL && id == -1)
 117         goto common;
 118
 119     /* TODO(3.0) Legacy code should be removed when all is provider based */
 120     /* BEGIN legacy */
 121     if (id == -1) {
 122         if (pkey == NULL)
 123             return 0;
 124         id = pkey->type;
 125     }
 126 #ifndef OPENSSL_NO_ENGINE
 127     if (e == NULL && pkey != NULL)
 128         e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
 129     /* Try to find an ENGINE which implements this method */
 130     if (e) {
 131         if (!ENGINE_init(e)) {
 132             EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB);
 133             return NULL;
 134         }
 135     } else {
 136         e = ENGINE_get_pkey_meth_engine(id);
 137     }
 138
 139     /*
 140      * If an ENGINE handled this method look it up. Otherwise use internal
 141      * tables.
 142      */
 143     if (e)
 144         pmeth = ENGINE_get_pkey_meth(e, id);
 145     else
 146 #endif
 147         pmeth = EVP_PKEY_meth_find(id);
 148
 149     if (pmeth == NULL) {
 150 #ifndef OPENSSL_NO_ENGINE
 151         ENGINE_finish(e);
 152 #endif
 153         EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM);
 154         return NULL;
 155     }
 156     /* END legacy */
 157
 158  common:
 159     ret = OPENSSL_zalloc(sizeof(*ret));
 160     if (ret == NULL) {
 161 #ifndef OPENSSL_NO_ENGINE
 162         ENGINE_finish(e);
 163 #endif
 164         EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
 165         return NULL;
 166     }
 167     ret->engine = e;
 168     ret->pmeth = pmeth;
 169     ret->operation = EVP_PKEY_OP_UNDEFINED;
 170     ret->pkey = pkey;
 171     if (pkey != NULL)
 172         EVP_PKEY_up_ref(pkey);
 173
 174     if (pmeth != NULL && pmeth->init != NULL) {
 175         if (pmeth->init(ret) <= 0) {
 176             ret->pmeth = NULL;
 177             EVP_PKEY_CTX_free(ret);
 178             return NULL;
 179         }
 180     }
 181
 182     return ret;
 183 }
 184
 185 EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
 186 {
 187     EVP_PKEY_METHOD *pmeth;
 188
 189     pmeth = OPENSSL_zalloc(sizeof(*pmeth));
 190     if (pmeth == NULL) {
 191         EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE);
 192         return NULL;
 193     }
 194
 195     pmeth->pkey_id = id;
 196     pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
 197     return pmeth;
 198 }
 199
 200 void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
 201                              const EVP_PKEY_METHOD *meth)
 202 {
 203     if (ppkey_id)
 204         *ppkey_id = meth->pkey_id;
 205     if (pflags)
 206         *pflags = meth->flags;
 207 }
 208
 209 void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
 210 {
 211
 212     dst->init = src->init;
 213     dst->copy = src->copy;
 214     dst->cleanup = src->cleanup;
 215
 216     dst->paramgen_init = src->paramgen_init;
 217     dst->paramgen = src->paramgen;
 218
 219     dst->keygen_init = src->keygen_init;
 220     dst->keygen = src->keygen;
 221
 222     dst->sign_init = src->sign_init;
 223     dst->sign = src->sign;
 224
 225     dst->verify_init = src->verify_init;
 226     dst->verify = src->verify;
 227
 228     dst->verify_recover_init = src->verify_recover_init;
 229     dst->verify_recover = src->verify_recover;
 230
 231     dst->signctx_init = src->signctx_init;
 232     dst->signctx = src->signctx;
 233
 234     dst->verifyctx_init = src->verifyctx_init;
 235     dst->verifyctx = src->verifyctx;
 236
 237     dst->encrypt_init = src->encrypt_init;
 238     dst->encrypt = src->encrypt;
 239
 240     dst->decrypt_init = src->decrypt_init;
 241     dst->decrypt = src->decrypt;
 242
 243     dst->derive_init = src->derive_init;
 244     dst->derive = src->derive;
 245
 246     dst->ctrl = src->ctrl;
 247     dst->ctrl_str = src->ctrl_str;
 248
 249     dst->check = src->check;
 250 }
 251
 252 void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
 253 {
 254     if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
 255         OPENSSL_free(pmeth);
 256 }
 257
 258 EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
 259 {
 260     return int_ctx_new(pkey, e, -1);
 261 }
 262
 263 EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
 264 {
 265     return int_ctx_new(NULL, e, id);
 266 }
 267
 268 EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
 269 {
 270     EVP_PKEY_CTX *rctx;
 271
 272     if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL))
 273             && pctx->exchprovctx == NULL)
 274         return NULL;
 275 #ifndef OPENSSL_NO_ENGINE
 276     /* Make sure it's safe to copy a pkey context using an ENGINE */
 277     if (pctx->engine && !ENGINE_init(pctx->engine)) {
 278         EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB);
 279         return 0;
 280     }
 281 #endif
 282     rctx = OPENSSL_zalloc(sizeof(*rctx));
 283     if (rctx == NULL) {
 284         EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE);
 285         return NULL;
 286     }
 287
 288     if (pctx->pkey != NULL)
 289         EVP_PKEY_up_ref(pctx->pkey);
 290     rctx->pkey = pctx->pkey;
 291     rctx->operation = pctx->operation;
 292
 293     if (pctx->exchprovctx != NULL) {
 294         if (!ossl_assert(pctx->exchange != NULL))
 295             return NULL;
 296         rctx->exchange = pctx->exchange;
 297         if (!EVP_KEYEXCH_up_ref(rctx->exchange)) {
 298             OPENSSL_free(rctx);
 299             return NULL;
 300         }
 301         rctx->exchprovctx = pctx->exchange->dupctx(pctx->exchprovctx);
 302         if (rctx->exchprovctx == NULL) {
 303             EVP_KEYEXCH_free(rctx->exchange);
 304             OPENSSL_free(rctx);
 305             return NULL;
 306         }
 307         return rctx;
 308     }
 309
 310     rctx->pmeth = pctx->pmeth;
 311 #ifndef OPENSSL_NO_ENGINE
 312     rctx->engine = pctx->engine;
 313 #endif
 314
 315     if (pctx->peerkey)
 316         EVP_PKEY_up_ref(pctx->peerkey);
 317     rctx->peerkey = pctx->peerkey;
 318
 319     if (pctx->pmeth->copy(rctx, pctx) > 0)
 320         return rctx;
 321
 322     rctx->pmeth = NULL;
 323     EVP_PKEY_CTX_free(rctx);
 324     return NULL;
 325
 326 }
 327
 328 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
 329 {
 330     if (app_pkey_methods == NULL) {
 331         app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
 332         if (app_pkey_methods == NULL){
 333             EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
 334             return 0;
 335         }
 336     }
 337     if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
 338         EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
 339         return 0;
 340     }
 341     sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
 342     return 1;
 343 }
 344
 345 void evp_app_cleanup_int(void)
 346 {
 347     if (app_pkey_methods != NULL)
 348         sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
 349 }
 350
 351 int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
 352 {
 353     const EVP_PKEY_METHOD *ret;
 354
 355     ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
 356
 357     return ret == NULL ? 0 : 1;
 358 }
 359
 360 size_t EVP_PKEY_meth_get_count(void)
 361 {
 362     size_t rv = OSSL_NELEM(standard_methods);
 363
 364     if (app_pkey_methods)
 365         rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
 366     return rv;
 367 }
 368
 369 const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
 370 {
 371     if (idx < OSSL_NELEM(standard_methods))
 372         return standard_methods[idx];
 373     if (app_pkey_methods == NULL)
 374         return NULL;
 375     idx -= OSSL_NELEM(standard_methods);
 376     if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
 377         return NULL;
 378     return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
 379 }
 380
 381 void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
 382 {
 383     if (ctx == NULL)
 384         return;
 385     if (ctx->pmeth && ctx->pmeth->cleanup)
 386         ctx->pmeth->cleanup(ctx);
 387
 388     if (ctx->exchprovctx != NULL && ctx->exchange != NULL)
 389         ctx->exchange->freectx(ctx->exchprovctx);
 390
 391     EVP_KEYEXCH_free(ctx->exchange);
 392
 393     if (ctx->sigprovctx != NULL && ctx->signature != NULL)
 394         ctx->signature->freectx(ctx->sigprovctx);
 395
 396     EVP_SIGNATURE_free(ctx->signature);
 397
 398     EVP_PKEY_free(ctx->pkey);
 399     EVP_PKEY_free(ctx->peerkey);
 400 #ifndef OPENSSL_NO_ENGINE
 401     ENGINE_finish(ctx->engine);
 402 #endif
 403     OPENSSL_free(ctx);
 404 }
 405
 406 int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
 407 {
 408     if (ctx->exchprovctx != NULL && ctx->exchange != NULL)
 409         return ctx->exchange->set_params(ctx->exchprovctx, params);
 410     if (ctx->sigprovctx != NULL && ctx->signature != NULL)
 411         return ctx->signature->set_params(ctx->sigprovctx, params);
 412     return 0;
 413 }
 414
 415 #ifndef OPENSSL_NO_DH
 416 int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad)
 417 {
 418     OSSL_PARAM dh_pad_params[2];
 419     unsigned int upad = pad;
 420
 421     /* TODO(3.0): Remove this eventually when no more legacy */
 422     if (ctx->exchprovctx == NULL)
 423         return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE,
 424                                  EVP_PKEY_CTRL_DH_PAD, pad, NULL);
 425
 426     dh_pad_params[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD, &upad);
 427     dh_pad_params[1] = OSSL_PARAM_construct_end();
 428
 429     return EVP_PKEY_CTX_set_params(ctx, dh_pad_params);
 430 }
 431 #endif
 432
 433 int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
 434 {
 435     OSSL_PARAM sig_md_params[3];
 436     size_t mdsize;
 437     const char *name;
 438
 439     /* TODO(3.0): Remove this eventually when no more legacy */
 440     if (ctx->sigprovctx == NULL)
 441         return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
 442                                  EVP_PKEY_CTRL_MD, 0, (void *)(md));
 443
 444     if (md == NULL)
 445         return 1;
 446
 447     mdsize = EVP_MD_size(md);
 448     name = EVP_MD_name(md);
 449     sig_md_params[0] = OSSL_PARAM_construct_utf8_string(
 450                            OSSL_SIGNATURE_PARAM_DIGEST,
 451                            /*
 452                             * Cast away the const. This is read only so should
 453                             * be safe
 454                             */
 455                            (char *)name,
 456                            strlen(name) + 1);
 457     sig_md_params[1] = OSSL_PARAM_construct_size_t(OSSL_SIGNATURE_PARAM_DIGEST_SIZE,
 458                                                    &mdsize);
 459     sig_md_params[2] = OSSL_PARAM_construct_end();
 460
 461     return EVP_PKEY_CTX_set_params(ctx, sig_md_params);
 462
 463 }
 464
 465 static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype,
 466                                 int cmd, int p1, void *p2)
 467 {
 468     switch (cmd) {
 469 #ifndef OPENSSL_NO_DH
 470     case EVP_PKEY_CTRL_DH_PAD:
 471         return EVP_PKEY_CTX_set_dh_pad(ctx, p1);
 472 #endif
 473     }
 474     return 0;
 475 }
 476
 477 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
 478                       int cmd, int p1, void *p2)
 479 {
 480     int ret;
 481
 482     if (ctx == NULL) {
 483         EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
 484         return -2;
 485     }
 486
 487     if (ctx->exchprovctx != NULL)
 488         return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
 489
 490     if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
 491         EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
 492         return -2;
 493     }
 494     if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
 495         return -1;
 496
 497     /* Skip the operation checks since this is called in a very early stage */
 498     if (ctx->pmeth->digest_custom != NULL)
 499         goto doit;
 500
 501     if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
 502         EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET);
 503         return -1;
 504     }
 505
 506     if ((optype != -1) && !(ctx->operation & optype)) {
 507         EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION);
 508         return -1;
 509     }
 510
 511  doit:
 512     ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
 513
 514     if (ret == -2)
 515         EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
 516
 517     return ret;
 518 }
 519
 520 int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
 521                              int cmd, uint64_t value)
 522 {
 523     return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
 524 }
 525
 526 static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name,
 527                                     const char *value)
 528 {
 529 #ifndef OPENSSL_NO_DH
 530     if (strcmp(name, "dh_pad") == 0) {
 531         int pad;
 532
 533         pad = atoi(value);
 534         return EVP_PKEY_CTX_set_dh_pad(ctx, pad);
 535     }
 536 #endif
 537     return 0;
 538 }
 539
 540 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
 541                           const char *name, const char *value)
 542 {
 543     if (ctx == NULL) {
 544         EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
 545         return -2;
 546     }
 547
 548     if (ctx->exchprovctx != NULL)
 549         return legacy_ctrl_str_to_param(ctx, name, value);
 550
 551     if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
 552         EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
 553         return -2;
 554     }
 555     if (strcmp(name, "digest") == 0)
 556         return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD,
 557                                value);
 558     return ctx->pmeth->ctrl_str(ctx, name, value);
 559 }
 560
 561 /* Utility functions to send a string of hex string to a ctrl */
 562
 563 int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
 564 {
 565     size_t len;
 566
 567     len = strlen(str);
 568     if (len > INT_MAX)
 569         return -1;
 570     return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
 571 }
 572
 573 int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
 574 {
 575     unsigned char *bin;
 576     long binlen;
 577     int rv = -1;
 578
 579     bin = OPENSSL_hexstr2buf(hex, &binlen);
 580     if (bin == NULL)
 581         return 0;
 582     if (binlen <= INT_MAX)
 583         rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
 584     OPENSSL_free(bin);
 585     return rv;
 586 }
 587
 588 /* Pass a message digest to a ctrl */
 589 int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
 590 {
 591     const EVP_MD *m;
 592
 593     if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
 594         EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST);
 595         return 0;
 596     }
 597     return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
 598 }
 599
 600 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
 601 {
 602     return ctx->operation;
 603 }
 604
 605 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
 606 {
 607     ctx->keygen_info = dat;
 608     ctx->keygen_info_count = datlen;
 609 }
 610
 611 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
 612 {
 613     ctx->data = data;
 614 }
 615
 616 void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
 617 {
 618     return ctx->data;
 619 }
 620
 621 EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
 622 {
 623     return ctx->pkey;
 624 }
 625
 626 EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
 627 {
 628     return ctx->peerkey;
 629 }
 630
 631 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
 632 {
 633     ctx->app_data = data;
 634 }
 635
 636 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
 637 {
 638     return ctx->app_data;
 639 }
 640
 641 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
 642                             int (*init) (EVP_PKEY_CTX *ctx))
 643 {
 644     pmeth->init = init;
 645 }
 646
 647 void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
 648                             int (*copy) (EVP_PKEY_CTX *dst,
 649                                          const EVP_PKEY_CTX *src))
 650 {
 651     pmeth->copy = copy;
 652 }
 653
 654 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
 655                                void (*cleanup) (EVP_PKEY_CTX *ctx))
 656 {
 657     pmeth->cleanup = cleanup;
 658 }
 659
 660 void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
 661                                 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
 662                                 int (*paramgen) (EVP_PKEY_CTX *ctx,
 663                                                  EVP_PKEY *pkey))
 664 {
 665     pmeth->paramgen_init = paramgen_init;
 666     pmeth->paramgen = paramgen;
 667 }
 668
 669 void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
 670                               int (*keygen_init) (EVP_PKEY_CTX *ctx),
 671                               int (*keygen) (EVP_PKEY_CTX *ctx,
 672                                              EVP_PKEY *pkey))
 673 {
 674     pmeth->keygen_init = keygen_init;
 675     pmeth->keygen = keygen;
 676 }
 677
 678 void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
 679                             int (*sign_init) (EVP_PKEY_CTX *ctx),
 680                             int (*sign) (EVP_PKEY_CTX *ctx,
 681                                          unsigned char *sig, size_t *siglen,
 682                                          const unsigned char *tbs,
 683                                          size_t tbslen))
 684 {
 685     pmeth->sign_init = sign_init;
 686     pmeth->sign = sign;
 687 }
 688
 689 void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
 690                               int (*verify_init) (EVP_PKEY_CTX *ctx),
 691                               int (*verify) (EVP_PKEY_CTX *ctx,
 692                                              const unsigned char *sig,
 693                                              size_t siglen,
 694                                              const unsigned char *tbs,
 695                                              size_t tbslen))
 696 {
 697     pmeth->verify_init = verify_init;
 698     pmeth->verify = verify;
 699 }
 700
 701 void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
 702                                       int (*verify_recover_init) (EVP_PKEY_CTX
 703                                                                   *ctx),
 704                                       int (*verify_recover) (EVP_PKEY_CTX
 705                                                              *ctx,
 706                                                              unsigned char
 707                                                              *sig,
 708                                                              size_t *siglen,
 709                                                              const unsigned
 710                                                              char *tbs,
 711                                                              size_t tbslen))
 712 {
 713     pmeth->verify_recover_init = verify_recover_init;
 714     pmeth->verify_recover = verify_recover;
 715 }
 716
 717 void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
 718                                int (*signctx_init) (EVP_PKEY_CTX *ctx,
 719                                                     EVP_MD_CTX *mctx),
 720                                int (*signctx) (EVP_PKEY_CTX *ctx,
 721                                                unsigned char *sig,
 722                                                size_t *siglen,
 723                                                EVP_MD_CTX *mctx))
 724 {
 725     pmeth->signctx_init = signctx_init;
 726     pmeth->signctx = signctx;
 727 }
 728
 729 void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
 730                                  int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
 731                                                         EVP_MD_CTX *mctx),
 732                                  int (*verifyctx) (EVP_PKEY_CTX *ctx,
 733                                                    const unsigned char *sig,
 734                                                    int siglen,
 735                                                    EVP_MD_CTX *mctx))
 736 {
 737     pmeth->verifyctx_init = verifyctx_init;
 738     pmeth->verifyctx = verifyctx;
 739 }
 740
 741 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
 742                                int (*encrypt_init) (EVP_PKEY_CTX *ctx),
 743                                int (*encryptfn) (EVP_PKEY_CTX *ctx,
 744                                                  unsigned char *out,
 745                                                  size_t *outlen,
 746                                                  const unsigned char *in,
 747                                                  size_t inlen))
 748 {
 749     pmeth->encrypt_init = encrypt_init;
 750     pmeth->encrypt = encryptfn;
 751 }
 752
 753 void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
 754                                int (*decrypt_init) (EVP_PKEY_CTX *ctx),
 755                                int (*decrypt) (EVP_PKEY_CTX *ctx,
 756                                                unsigned char *out,
 757                                                size_t *outlen,
 758                                                const unsigned char *in,
 759                                                size_t inlen))
 760 {
 761     pmeth->decrypt_init = decrypt_init;
 762     pmeth->decrypt = decrypt;
 763 }
 764
 765 void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
 766                               int (*derive_init) (EVP_PKEY_CTX *ctx),
 767                               int (*derive) (EVP_PKEY_CTX *ctx,
 768                                              unsigned char *key,
 769                                              size_t *keylen))
 770 {
 771     pmeth->derive_init = derive_init;
 772     pmeth->derive = derive;
 773 }
 774
 775 void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
 776                             int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
 777                                          void *p2),
 778                             int (*ctrl_str) (EVP_PKEY_CTX *ctx,
 779                                              const char *type,
 780                                              const char *value))
 781 {
 782     pmeth->ctrl = ctrl;
 783     pmeth->ctrl_str = ctrl_str;
 784 }
 785
 786 void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
 787                              int (*check) (EVP_PKEY *pkey))
 788 {
 789     pmeth->check = check;
 790 }
 791
 792 void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
 793                                     int (*check) (EVP_PKEY *pkey))
 794 {
 795     pmeth->public_check = check;
 796 }
 797
 798 void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
 799                                    int (*check) (EVP_PKEY *pkey))
 800 {
 801     pmeth->param_check = check;
 802 }
 803
 804 void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
 805                                      int (*digest_custom) (EVP_PKEY_CTX *ctx,
 806                                                            EVP_MD_CTX *mctx))
 807 {
 808     pmeth->digest_custom = digest_custom;
 809 }
 810
 811 void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
 812                             int (**pinit) (EVP_PKEY_CTX *ctx))
 813 {
 814     *pinit = pmeth->init;
 815 }
 816
 817 void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
 818                             int (**pcopy) (EVP_PKEY_CTX *dst,
 819                                            const EVP_PKEY_CTX *src))
 820 {
 821     *pcopy = pmeth->copy;
 822 }
 823
 824 void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
 825                                void (**pcleanup) (EVP_PKEY_CTX *ctx))
 826 {
 827     *pcleanup = pmeth->cleanup;
 828 }
 829
 830 void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
 831                                 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
 832                                 int (**pparamgen) (EVP_PKEY_CTX *ctx,
 833                                                    EVP_PKEY *pkey))
 834 {
 835     if (pparamgen_init)
 836         *pparamgen_init = pmeth->paramgen_init;
 837     if (pparamgen)
 838         *pparamgen = pmeth->paramgen;
 839 }
 840
 841 void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
 842                               int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
 843                               int (**pkeygen) (EVP_PKEY_CTX *ctx,
 844                                                EVP_PKEY *pkey))
 845 {
 846     if (pkeygen_init)
 847         *pkeygen_init = pmeth->keygen_init;
 848     if (pkeygen)
 849         *pkeygen = pmeth->keygen;
 850 }
 851
 852 void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
 853                             int (**psign_init) (EVP_PKEY_CTX *ctx),
 854                             int (**psign) (EVP_PKEY_CTX *ctx,
 855                                            unsigned char *sig, size_t *siglen,
 856                                            const unsigned char *tbs,
 857                                            size_t tbslen))
 858 {
 859     if (psign_init)
 860         *psign_init = pmeth->sign_init;
 861     if (psign)
 862         *psign = pmeth->sign;
 863 }
 864
 865 void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
 866                               int (**pverify_init) (EVP_PKEY_CTX *ctx),
 867                               int (**pverify) (EVP_PKEY_CTX *ctx,
 868                                                const unsigned char *sig,
 869                                                size_t siglen,
 870                                                const unsigned char *tbs,
 871                                                size_t tbslen))
 872 {
 873     if (pverify_init)
 874         *pverify_init = pmeth->verify_init;
 875     if (pverify)
 876         *pverify = pmeth->verify;
 877 }
 878
 879 void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
 880                                       int (**pverify_recover_init) (EVP_PKEY_CTX
 881                                                                     *ctx),
 882                                       int (**pverify_recover) (EVP_PKEY_CTX
 883                                                                *ctx,
 884                                                                unsigned char
 885                                                                *sig,
 886                                                                size_t *siglen,
 887                                                                const unsigned
 888                                                                char *tbs,
 889                                                                size_t tbslen))
 890 {
 891     if (pverify_recover_init)
 892         *pverify_recover_init = pmeth->verify_recover_init;
 893     if (pverify_recover)
 894         *pverify_recover = pmeth->verify_recover;
 895 }
 896
 897 void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
 898                                int (**psignctx_init) (EVP_PKEY_CTX *ctx,
 899                                                       EVP_MD_CTX *mctx),
 900                                int (**psignctx) (EVP_PKEY_CTX *ctx,
 901                                                  unsigned char *sig,
 902                                                  size_t *siglen,
 903                                                  EVP_MD_CTX *mctx))
 904 {
 905     if (psignctx_init)
 906         *psignctx_init = pmeth->signctx_init;
 907     if (psignctx)
 908         *psignctx = pmeth->signctx;
 909 }
 910
 911 void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
 912                                  int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
 913                                                           EVP_MD_CTX *mctx),
 914                                  int (**pverifyctx) (EVP_PKEY_CTX *ctx,
 915                                                      const unsigned char *sig,
 916                                                      int siglen,
 917                                                      EVP_MD_CTX *mctx))
 918 {
 919     if (pverifyctx_init)
 920         *pverifyctx_init = pmeth->verifyctx_init;
 921     if (pverifyctx)
 922         *pverifyctx = pmeth->verifyctx;
 923 }
 924
 925 void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
 926                                int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
 927                                int (**pencryptfn) (EVP_PKEY_CTX *ctx,
 928                                                    unsigned char *out,
 929                                                    size_t *outlen,
 930                                                    const unsigned char *in,
 931                                                    size_t inlen))
 932 {
 933     if (pencrypt_init)
 934         *pencrypt_init = pmeth->encrypt_init;
 935     if (pencryptfn)
 936         *pencryptfn = pmeth->encrypt;
 937 }
 938
 939 void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
 940                                int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
 941                                int (**pdecrypt) (EVP_PKEY_CTX *ctx,
 942                                                  unsigned char *out,
 943                                                  size_t *outlen,
 944                                                  const unsigned char *in,
 945                                                  size_t inlen))
 946 {
 947     if (pdecrypt_init)
 948         *pdecrypt_init = pmeth->decrypt_init;
 949     if (pdecrypt)
 950         *pdecrypt = pmeth->decrypt;
 951 }
 952
 953 void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
 954                               int (**pderive_init) (EVP_PKEY_CTX *ctx),
 955                               int (**pderive) (EVP_PKEY_CTX *ctx,
 956                                                unsigned char *key,
 957                                                size_t *keylen))
 958 {
 959     if (pderive_init)
 960         *pderive_init = pmeth->derive_init;
 961     if (pderive)
 962         *pderive = pmeth->derive;
 963 }
 964
 965 void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
 966                             int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
 967                                            void *p2),
 968                             int (**pctrl_str) (EVP_PKEY_CTX *ctx,
 969                                                const char *type,
 970                                                const char *value))
 971 {
 972     if (pctrl)
 973         *pctrl = pmeth->ctrl;
 974     if (pctrl_str)
 975         *pctrl_str = pmeth->ctrl_str;
 976 }
 977
 978 void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
 979                              int (**pcheck) (EVP_PKEY *pkey))
 980 {
 981     if (pcheck != NULL)
 982         *pcheck = pmeth->check;
 983 }
 984
 985 void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
 986                                     int (**pcheck) (EVP_PKEY *pkey))
 987 {
 988     if (pcheck != NULL)
 989         *pcheck = pmeth->public_check;
 990 }
 991
 992 void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
 993                                    int (**pcheck) (EVP_PKEY *pkey))
 994 {
 995     if (pcheck != NULL)
 996         *pcheck = pmeth->param_check;
 997 }
 998
 999 void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
1000                                      int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
1001                                                              EVP_MD_CTX *mctx))
1002 {
1003     if (pdigest_custom != NULL)
1004         *pdigest_custom = pmeth->digest_custom;
1005 }