include/crypto/evp.h

   1 /*
   2  * Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #ifndef OSSL_CRYPTO_EVP_H
  11 # define OSSL_CRYPTO_EVP_H
  12 # pragma once
  13
  14 # include <openssl/evp.h>
  15 # include <openssl/core_dispatch.h>
  16 # include "internal/refcount.h"
  17 # include "crypto/ecx.h"
  18
  19 /*
  20  * Don't free up md_ctx->pctx in EVP_MD_CTX_reset, use the reserved flag
  21  * values in evp.h
  22  */
  23 #define EVP_MD_CTX_FLAG_KEEP_PKEY_CTX   0x0400
  24
  25 /*
  26  * An EVP_PKEY_CTX can have the following support states:
  27  *
  28  * Supports legacy implementations only:
  29  *
  30  *      engine != NULL || keytype == NULL
  31  *
  32  * Supports provided implementations:
  33  *
  34  *      engine == NULL && keytype != NULL
  35  */
  36 #define evp_pkey_ctx_is_legacy(ctx)                             \
  37     ((ctx)->engine != NULL || (ctx)->keytype == NULL)
  38 #define evp_pkey_ctx_is_provided(ctx)                           \
  39     (!evp_pkey_ctx_is_legacy(ctx))
  40
  41 struct evp_pkey_ctx_st {
  42     /* Actual operation */
  43     int operation;
  44
  45     /*
  46      * Library context, property query, keytype and keymgmt associated with
  47      * this context
  48      */
  49     OSSL_LIB_CTX *libctx;
  50     char *propquery;
  51     const char *keytype;
  52     EVP_KEYMGMT *keymgmt;
  53
  54     union {
  55         struct {
  56             void *genctx;
  57         } keymgmt;
  58
  59         struct {
  60             EVP_KEYEXCH *exchange;
  61             /*
  62              * Opaque ctx returned from a providers exchange algorithm
  63              * implementation OSSL_FUNC_keyexch_newctx()
  64              */
  65             void *algctx;
  66         } kex;
  67
  68         struct {
  69             EVP_SIGNATURE *signature;
  70             /*
  71              * Opaque ctx returned from a providers signature algorithm
  72              * implementation OSSL_FUNC_signature_newctx()
  73              */
  74             void *algctx;
  75         } sig;
  76
  77         struct {
  78             EVP_ASYM_CIPHER *cipher;
  79             /*
  80              * Opaque ctx returned from a providers asymmetric cipher algorithm
  81              * implementation OSSL_FUNC_asym_cipher_newctx()
  82              */
  83             void *algctx;
  84         } ciph;
  85         struct {
  86             EVP_KEM *kem;
  87             /*
  88              * Opaque ctx returned from a providers KEM algorithm
  89              * implementation OSSL_FUNC_kem_newctx()
  90              */
  91             void *algctx;
  92         } encap;
  93     } op;
  94
  95     /*
  96      * Cached parameters.  Inits of operations that depend on these should
  97      * call evp_pkey_ctx_use_delayed_data() when the operation has been set
  98      * up properly.
  99      */
 100     struct {
 101         /* Distinguishing Identifier, ISO/IEC 15946-3, FIPS 196 */
 102         char *dist_id_name; /* The name used with EVP_PKEY_CTX_ctrl_str() */
 103         void *dist_id;      /* The distinguishing ID itself */
 104         size_t dist_id_len; /* The length of the distinguishing ID */
 105
 106         /* Indicators of what has been set.  Keep them together! */
 107         unsigned int dist_id_set : 1;
 108     } cached_parameters;
 109
 110     /* Application specific data, usually used by the callback */
 111     void *app_data;
 112     /* Keygen callback */
 113     EVP_PKEY_gen_cb *pkey_gencb;
 114     /* implementation specific keygen data */
 115     int *keygen_info;
 116     int keygen_info_count;
 117
 118     /* Legacy fields below */
 119
 120     /* EVP_PKEY identity */
 121     int legacy_keytype;
 122     /* Method associated with this operation */
 123     const EVP_PKEY_METHOD *pmeth;
 124     /* Engine that implements this method or NULL if builtin */
 125     ENGINE *engine;
 126     /* Key: may be NULL */
 127     EVP_PKEY *pkey;
 128     /* Peer key for key agreement, may be NULL */
 129     EVP_PKEY *peerkey;
 130     /* Algorithm specific data */
 131     void *data;
 132     /* Indicator if digest_custom needs to be called */
 133     unsigned int flag_call_digest_custom:1;
 134     /*
 135      * Used to support taking custody of memory in the case of a provider being
 136      * used with the deprecated EVP_PKEY_CTX_set_rsa_keygen_pubexp() API. This
 137      * member should NOT be used for any other purpose and should be removed
 138      * when said deprecated API is excised completely.
 139      */
 140     BIGNUM *rsa_pubexp;
 141 } /* EVP_PKEY_CTX */ ;
 142
 143 #define EVP_PKEY_FLAG_DYNAMIC   1
 144
 145 struct evp_pkey_method_st {
 146     int pkey_id;
 147     int flags;
 148     int (*init) (EVP_PKEY_CTX *ctx);
 149     int (*copy) (EVP_PKEY_CTX *dst, const EVP_PKEY_CTX *src);
 150     void (*cleanup) (EVP_PKEY_CTX *ctx);
 151     int (*paramgen_init) (EVP_PKEY_CTX *ctx);
 152     int (*paramgen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
 153     int (*keygen_init) (EVP_PKEY_CTX *ctx);
 154     int (*keygen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
 155     int (*sign_init) (EVP_PKEY_CTX *ctx);
 156     int (*sign) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
 157                  const unsigned char *tbs, size_t tbslen);
 158     int (*verify_init) (EVP_PKEY_CTX *ctx);
 159     int (*verify) (EVP_PKEY_CTX *ctx,
 160                    const unsigned char *sig, size_t siglen,
 161                    const unsigned char *tbs, size_t tbslen);
 162     int (*verify_recover_init) (EVP_PKEY_CTX *ctx);
 163     int (*verify_recover) (EVP_PKEY_CTX *ctx,
 164                            unsigned char *rout, size_t *routlen,
 165                            const unsigned char *sig, size_t siglen);
 166     int (*signctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
 167     int (*signctx) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
 168                     EVP_MD_CTX *mctx);
 169     int (*verifyctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
 170     int (*verifyctx) (EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
 171                       EVP_MD_CTX *mctx);
 172     int (*encrypt_init) (EVP_PKEY_CTX *ctx);
 173     int (*encrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
 174                     const unsigned char *in, size_t inlen);
 175     int (*decrypt_init) (EVP_PKEY_CTX *ctx);
 176     int (*decrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
 177                     const unsigned char *in, size_t inlen);
 178     int (*derive_init) (EVP_PKEY_CTX *ctx);
 179     int (*derive) (EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
 180     int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
 181     int (*ctrl_str) (EVP_PKEY_CTX *ctx, const char *type, const char *value);
 182     int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
 183                        const unsigned char *tbs, size_t tbslen);
 184     int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
 185                          size_t siglen, const unsigned char *tbs,
 186                          size_t tbslen);
 187     int (*check) (EVP_PKEY *pkey);
 188     int (*public_check) (EVP_PKEY *pkey);
 189     int (*param_check) (EVP_PKEY *pkey);
 190
 191     int (*digest_custom) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
 192 } /* EVP_PKEY_METHOD */ ;
 193
 194 DEFINE_STACK_OF_CONST(EVP_PKEY_METHOD)
 195
 196 void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx);
 197
 198 const EVP_PKEY_METHOD *ossl_dh_pkey_method(void);
 199 const EVP_PKEY_METHOD *ossl_dhx_pkey_method(void);
 200 const EVP_PKEY_METHOD *ossl_dsa_pkey_method(void);
 201 const EVP_PKEY_METHOD *ossl_ec_pkey_method(void);
 202 const EVP_PKEY_METHOD *ossl_ecx25519_pkey_method(void);
 203 const EVP_PKEY_METHOD *ossl_ecx448_pkey_method(void);
 204 const EVP_PKEY_METHOD *ossl_ed25519_pkey_method(void);
 205 const EVP_PKEY_METHOD *ossl_ed448_pkey_method(void);
 206 const EVP_PKEY_METHOD *ossl_rsa_pkey_method(void);
 207 const EVP_PKEY_METHOD *ossl_rsa_pss_pkey_method(void);
 208
 209 struct evp_mac_st {
 210     OSSL_PROVIDER *prov;
 211     int name_id;
 212     char *type_name;
 213     const char *description;
 214
 215     CRYPTO_REF_COUNT refcnt;
 216     CRYPTO_RWLOCK *lock;
 217
 218     OSSL_FUNC_mac_newctx_fn *newctx;
 219     OSSL_FUNC_mac_dupctx_fn *dupctx;
 220     OSSL_FUNC_mac_freectx_fn *freectx;
 221     OSSL_FUNC_mac_init_fn *init;
 222     OSSL_FUNC_mac_update_fn *update;
 223     OSSL_FUNC_mac_final_fn *final;
 224     OSSL_FUNC_mac_gettable_params_fn *gettable_params;
 225     OSSL_FUNC_mac_gettable_ctx_params_fn *gettable_ctx_params;
 226     OSSL_FUNC_mac_settable_ctx_params_fn *settable_ctx_params;
 227     OSSL_FUNC_mac_get_params_fn *get_params;
 228     OSSL_FUNC_mac_get_ctx_params_fn *get_ctx_params;
 229     OSSL_FUNC_mac_set_ctx_params_fn *set_ctx_params;
 230 };
 231
 232 struct evp_kdf_st {
 233     OSSL_PROVIDER *prov;
 234     int name_id;
 235     char *type_name;
 236     const char *description;
 237     CRYPTO_REF_COUNT refcnt;
 238     CRYPTO_RWLOCK *lock;
 239
 240     OSSL_FUNC_kdf_newctx_fn *newctx;
 241     OSSL_FUNC_kdf_dupctx_fn *dupctx;
 242     OSSL_FUNC_kdf_freectx_fn *freectx;
 243     OSSL_FUNC_kdf_reset_fn *reset;
 244     OSSL_FUNC_kdf_derive_fn *derive;
 245     OSSL_FUNC_kdf_gettable_params_fn *gettable_params;
 246     OSSL_FUNC_kdf_gettable_ctx_params_fn *gettable_ctx_params;
 247     OSSL_FUNC_kdf_settable_ctx_params_fn *settable_ctx_params;
 248     OSSL_FUNC_kdf_get_params_fn *get_params;
 249     OSSL_FUNC_kdf_get_ctx_params_fn *get_ctx_params;
 250     OSSL_FUNC_kdf_set_ctx_params_fn *set_ctx_params;
 251 };
 252
 253 #define EVP_ORIG_DYNAMIC    0
 254 #define EVP_ORIG_GLOBAL     1
 255 #define EVP_ORIG_METH       2
 256
 257 struct evp_md_st {
 258     /* nid */
 259     int type;
 260
 261     /* Legacy structure members */
 262     int pkey_type;
 263     int md_size;
 264     unsigned long flags;
 265     int origin;
 266     int (*init) (EVP_MD_CTX *ctx);
 267     int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
 268     int (*final) (EVP_MD_CTX *ctx, unsigned char *md);
 269     int (*copy) (EVP_MD_CTX *to, const EVP_MD_CTX *from);
 270     int (*cleanup) (EVP_MD_CTX *ctx);
 271     int block_size;
 272     int ctx_size;               /* how big does the ctx->md_data need to be */
 273     /* control function */
 274     int (*md_ctrl) (EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
 275
 276     /* New structure members */
 277     /* Above comment to be removed when legacy has gone */
 278     int name_id;
 279     char *type_name;
 280     const char *description;
 281     OSSL_PROVIDER *prov;
 282     CRYPTO_REF_COUNT refcnt;
 283     CRYPTO_RWLOCK *lock;
 284     OSSL_FUNC_digest_newctx_fn *newctx;
 285     OSSL_FUNC_digest_init_fn *dinit;
 286     OSSL_FUNC_digest_update_fn *dupdate;
 287     OSSL_FUNC_digest_final_fn *dfinal;
 288     OSSL_FUNC_digest_digest_fn *digest;
 289     OSSL_FUNC_digest_freectx_fn *freectx;
 290     OSSL_FUNC_digest_dupctx_fn *dupctx;
 291     OSSL_FUNC_digest_get_params_fn *get_params;
 292     OSSL_FUNC_digest_set_ctx_params_fn *set_ctx_params;
 293     OSSL_FUNC_digest_get_ctx_params_fn *get_ctx_params;
 294     OSSL_FUNC_digest_gettable_params_fn *gettable_params;
 295     OSSL_FUNC_digest_settable_ctx_params_fn *settable_ctx_params;
 296     OSSL_FUNC_digest_gettable_ctx_params_fn *gettable_ctx_params;
 297
 298 } /* EVP_MD */ ;
 299
 300 struct evp_cipher_st {
 301     int nid;
 302
 303     int block_size;
 304     /* Default value for variable length ciphers */
 305     int key_len;
 306     int iv_len;
 307
 308     /* Legacy structure members */
 309     /* Various flags */
 310     unsigned long flags;
 311     /* How the EVP_CIPHER was created. */
 312     int origin;
 313     /* init key */
 314     int (*init) (EVP_CIPHER_CTX *ctx, const unsigned char *key,
 315                  const unsigned char *iv, int enc);
 316     /* encrypt/decrypt data */
 317     int (*do_cipher) (EVP_CIPHER_CTX *ctx, unsigned char *out,
 318                       const unsigned char *in, size_t inl);
 319     /* cleanup ctx */
 320     int (*cleanup) (EVP_CIPHER_CTX *);
 321     /* how big ctx->cipher_data needs to be */
 322     int ctx_size;
 323     /* Populate a ASN1_TYPE with parameters */
 324     int (*set_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
 325     /* Get parameters from a ASN1_TYPE */
 326     int (*get_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
 327     /* Miscellaneous operations */
 328     int (*ctrl) (EVP_CIPHER_CTX *, int type, int arg, void *ptr);
 329     /* Application data */
 330     void *app_data;
 331
 332     /* New structure members */
 333     /* Above comment to be removed when legacy has gone */
 334     int name_id;
 335     char *type_name;
 336     const char *description;
 337     OSSL_PROVIDER *prov;
 338     CRYPTO_REF_COUNT refcnt;
 339     CRYPTO_RWLOCK *lock;
 340     OSSL_FUNC_cipher_newctx_fn *newctx;
 341     OSSL_FUNC_cipher_encrypt_init_fn *einit;
 342     OSSL_FUNC_cipher_decrypt_init_fn *dinit;
 343     OSSL_FUNC_cipher_update_fn *cupdate;
 344     OSSL_FUNC_cipher_final_fn *cfinal;
 345     OSSL_FUNC_cipher_cipher_fn *ccipher;
 346     OSSL_FUNC_cipher_freectx_fn *freectx;
 347     OSSL_FUNC_cipher_dupctx_fn *dupctx;
 348     OSSL_FUNC_cipher_get_params_fn *get_params;
 349     OSSL_FUNC_cipher_get_ctx_params_fn *get_ctx_params;
 350     OSSL_FUNC_cipher_set_ctx_params_fn *set_ctx_params;
 351     OSSL_FUNC_cipher_gettable_params_fn *gettable_params;
 352     OSSL_FUNC_cipher_gettable_ctx_params_fn *gettable_ctx_params;
 353     OSSL_FUNC_cipher_settable_ctx_params_fn *settable_ctx_params;
 354 } /* EVP_CIPHER */ ;
 355
 356 /* Macros to code block cipher wrappers */
 357
 358 /* Wrapper functions for each cipher mode */
 359
 360 #define EVP_C_DATA(kstruct, ctx) \
 361         ((kstruct *)EVP_CIPHER_CTX_get_cipher_data(ctx))
 362
 363 #define BLOCK_CIPHER_ecb_loop() \
 364         size_t i, bl; \
 365         bl = EVP_CIPHER_CTX_get0_cipher(ctx)->block_size;    \
 366         if (inl < bl) return 1;\
 367         inl -= bl; \
 368         for (i=0; i <= inl; i+=bl)
 369
 370 #define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
 371 static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
 372 {\
 373         BLOCK_CIPHER_ecb_loop() \
 374             cprefix##_ecb_encrypt(in + i, out + i, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_is_encrypting(ctx)); \
 375         return 1;\
 376 }
 377
 378 #define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))
 379
 380 #define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
 381     static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
 382 {\
 383         while(inl>=EVP_MAXCHUNK) {\
 384             int num = EVP_CIPHER_CTX_get_num(ctx);\
 385             cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, ctx->iv, &num); \
 386             EVP_CIPHER_CTX_set_num(ctx, num);\
 387             inl-=EVP_MAXCHUNK;\
 388             in +=EVP_MAXCHUNK;\
 389             out+=EVP_MAXCHUNK;\
 390         }\
 391         if (inl) {\
 392             int num = EVP_CIPHER_CTX_get_num(ctx);\
 393             cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, ctx->iv, &num); \
 394             EVP_CIPHER_CTX_set_num(ctx, num);\
 395         }\
 396         return 1;\
 397 }
 398
 399 #define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
 400 static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
 401 {\
 402         while(inl>=EVP_MAXCHUNK) \
 403             {\
 404             cprefix##_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, ctx->iv, EVP_CIPHER_CTX_is_encrypting(ctx));\
 405             inl-=EVP_MAXCHUNK;\
 406             in +=EVP_MAXCHUNK;\
 407             out+=EVP_MAXCHUNK;\
 408             }\
 409         if (inl)\
 410             cprefix##_cbc_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, ctx->iv, EVP_CIPHER_CTX_is_encrypting(ctx));\
 411         return 1;\
 412 }
 413
 414 #define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched)  \
 415 static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
 416 {\
 417     size_t chunk = EVP_MAXCHUNK;\
 418     if (cbits == 1)  chunk >>= 3;\
 419     if (inl < chunk) chunk = inl;\
 420     while (inl && inl >= chunk)\
 421     {\
 422         int num = EVP_CIPHER_CTX_get_num(ctx);\
 423         cprefix##_cfb##cbits##_encrypt(in, out, (long) \
 424             ((cbits == 1) \
 425                 && !EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS) \
 426                 ? chunk*8 : chunk), \
 427             &EVP_C_DATA(kstruct, ctx)->ksched, ctx->iv,\
 428             &num, EVP_CIPHER_CTX_is_encrypting(ctx));\
 429         EVP_CIPHER_CTX_set_num(ctx, num);\
 430         inl -= chunk;\
 431         in += chunk;\
 432         out += chunk;\
 433         if (inl < chunk) chunk = inl;\
 434     }\
 435     return 1;\
 436 }
 437
 438 #define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
 439         BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
 440         BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
 441         BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
 442         BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
 443
 444 #define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
 445                           key_len, iv_len, flags, init_key, cleanup, \
 446                           set_asn1, get_asn1, ctrl) \
 447 static const EVP_CIPHER cname##_##mode = { \
 448         nid##_##nmode, block_size, key_len, iv_len, \
 449         flags | EVP_CIPH_##MODE##_MODE, \
 450         EVP_ORIG_GLOBAL, \
 451         init_key, \
 452         cname##_##mode##_cipher, \
 453         cleanup, \
 454         sizeof(kstruct), \
 455         set_asn1, get_asn1,\
 456         ctrl, \
 457         NULL \
 458 }; \
 459 const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
 460
 461 #define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
 462                              iv_len, flags, init_key, cleanup, set_asn1, \
 463                              get_asn1, ctrl) \
 464 BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
 465                   iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
 466
 467 #define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
 468                              iv_len, cbits, flags, init_key, cleanup, \
 469                              set_asn1, get_asn1, ctrl) \
 470 BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
 471                   key_len, iv_len, flags, init_key, cleanup, set_asn1, \
 472                   get_asn1, ctrl)
 473
 474 #define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
 475                              iv_len, cbits, flags, init_key, cleanup, \
 476                              set_asn1, get_asn1, ctrl) \
 477 BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
 478                   key_len, iv_len, flags, init_key, cleanup, set_asn1, \
 479                   get_asn1, ctrl)
 480
 481 #define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
 482                              flags, init_key, cleanup, set_asn1, \
 483                              get_asn1, ctrl) \
 484 BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
 485                   0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
 486
 487 #define BLOCK_CIPHER_defs(cname, kstruct, \
 488                           nid, block_size, key_len, iv_len, cbits, flags, \
 489                           init_key, cleanup, set_asn1, get_asn1, ctrl) \
 490 BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
 491                      init_key, cleanup, set_asn1, get_asn1, ctrl) \
 492 BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
 493                      flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
 494 BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
 495                      flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
 496 BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
 497                      init_key, cleanup, set_asn1, get_asn1, ctrl)
 498
 499 /*-
 500 #define BLOCK_CIPHER_defs(cname, kstruct, \
 501                                 nid, block_size, key_len, iv_len, flags,\
 502                                  init_key, cleanup, set_asn1, get_asn1, ctrl)\
 503 static const EVP_CIPHER cname##_cbc = {\
 504         nid##_cbc, block_size, key_len, iv_len, \
 505         flags | EVP_CIPH_CBC_MODE,\
 506         EVP_ORIG_GLOBAL,\
 507         init_key,\
 508         cname##_cbc_cipher,\
 509         cleanup,\
 510         sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
 511                 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
 512         set_asn1, get_asn1,\
 513         ctrl, \
 514         NULL \
 515 };\
 516 const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
 517 static const EVP_CIPHER cname##_cfb = {\
 518         nid##_cfb64, 1, key_len, iv_len, \
 519         flags | EVP_CIPH_CFB_MODE,\
 520         EVP_ORIG_GLOBAL,\
 521         init_key,\
 522         cname##_cfb_cipher,\
 523         cleanup,\
 524         sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
 525                 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
 526         set_asn1, get_asn1,\
 527         ctrl,\
 528         NULL \
 529 };\
 530 const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
 531 static const EVP_CIPHER cname##_ofb = {\
 532         nid##_ofb64, 1, key_len, iv_len, \
 533         flags | EVP_CIPH_OFB_MODE,\
 534         EVP_ORIG_GLOBAL,\
 535         init_key,\
 536         cname##_ofb_cipher,\
 537         cleanup,\
 538         sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
 539                 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
 540         set_asn1, get_asn1,\
 541         ctrl,\
 542         NULL \
 543 };\
 544 const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
 545 static const EVP_CIPHER cname##_ecb = {\
 546         nid##_ecb, block_size, key_len, iv_len, \
 547         flags | EVP_CIPH_ECB_MODE,\
 548         EVP_ORIG_GLOBAL,\
 549         init_key,\
 550         cname##_ecb_cipher,\
 551         cleanup,\
 552         sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
 553                 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
 554         set_asn1, get_asn1,\
 555         ctrl,\
 556         NULL \
 557 };\
 558 const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
 559 */
 560
 561 #define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \
 562                                block_size, key_len, iv_len, cbits, \
 563                                flags, init_key, \
 564                                cleanup, set_asn1, get_asn1, ctrl) \
 565         BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
 566         BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \
 567                           cbits, flags, init_key, cleanup, set_asn1, \
 568                           get_asn1, ctrl)
 569
 570 #define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \
 571         BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \
 572         BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \
 573                              NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \
 574                              (fl)|EVP_CIPH_FLAG_DEFAULT_ASN1, \
 575                              cipher##_init_key, NULL, NULL, NULL, NULL)
 576
 577 typedef struct {
 578     unsigned char iv[EVP_MAX_IV_LENGTH];
 579     unsigned int iv_len;
 580     unsigned int tag_len;
 581 } evp_cipher_aead_asn1_params;
 582
 583 int evp_cipher_param_to_asn1_ex(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
 584                                 evp_cipher_aead_asn1_params *params);
 585
 586 int evp_cipher_asn1_to_param_ex(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
 587                                 evp_cipher_aead_asn1_params *params);
 588
 589 /*
 590  * To support transparent execution of operation in backends other
 591  * than the "origin" key, we support transparent export/import to
 592  * those providers, and maintain a cache of the imported keydata,
 593  * so we don't need to redo the export/import every time we perform
 594  * the same operation in that same provider.
 595  * This requires that the "origin" backend (whether it's a legacy or a
 596  * provider "origin") implements exports, and that the target provider
 597  * has an EVP_KEYMGMT that implements import.
 598  */
 599 typedef struct {
 600     EVP_KEYMGMT *keymgmt;
 601     void *keydata;
 602 } OP_CACHE_ELEM;
 603
 604 DEFINE_STACK_OF(OP_CACHE_ELEM)
 605
 606 /*
 607  * An EVP_PKEY can have the following states:
 608  *
 609  * untyped & empty:
 610  *
 611  *     type == EVP_PKEY_NONE && keymgmt == NULL
 612  *
 613  * typed & empty:
 614  *
 615  *     (type != EVP_PKEY_NONE && pkey.ptr == NULL)      ## legacy (libcrypto only)
 616  *     || (keymgmt != NULL && keydata == NULL)          ## provider side
 617  *
 618  * fully assigned:
 619  *
 620  *     (type != EVP_PKEY_NONE && pkey.ptr != NULL)      ## legacy (libcrypto only)
 621  *     || (keymgmt != NULL && keydata != NULL)          ## provider side
 622  *
 623  * The easiest way to detect a legacy key is:
 624  *
 625  *     keymgmt == NULL && type != EVP_PKEY_NONE
 626  *
 627  * The easiest way to detect a provider side key is:
 628  *
 629  *     keymgmt != NULL
 630  */
 631 #define evp_pkey_is_blank(pk)                                   \
 632     ((pk)->type == EVP_PKEY_NONE && (pk)->keymgmt == NULL)
 633 #define evp_pkey_is_typed(pk)                                   \
 634     ((pk)->type != EVP_PKEY_NONE || (pk)->keymgmt != NULL)
 635 #ifndef FIPS_MODULE
 636 # define evp_pkey_is_assigned(pk)                               \
 637     ((pk)->pkey.ptr != NULL || (pk)->keydata != NULL)
 638 #else
 639 # define evp_pkey_is_assigned(pk)                               \
 640     ((pk)->keydata != NULL)
 641 #endif
 642 #define evp_pkey_is_legacy(pk)                                  \
 643     ((pk)->type != EVP_PKEY_NONE && (pk)->keymgmt == NULL)
 644 #define evp_pkey_is_provided(pk)                                \
 645     ((pk)->keymgmt != NULL)
 646
 647 union legacy_pkey_st {
 648     void *ptr;
 649     struct rsa_st *rsa;     /* RSA */
 650 #  ifndef OPENSSL_NO_DSA
 651     struct dsa_st *dsa;     /* DSA */
 652 #  endif
 653 #  ifndef OPENSSL_NO_DH
 654     struct dh_st *dh;       /* DH */
 655 #  endif
 656 #  ifndef OPENSSL_NO_EC
 657     struct ec_key_st *ec;   /* ECC */
 658     ECX_KEY *ecx;           /* X25519, X448, Ed25519, Ed448 */
 659 #  endif
 660 };
 661
 662 struct evp_pkey_st {
 663     /* == Legacy attributes == */
 664     int type;
 665     int save_type;
 666
 667 # ifndef FIPS_MODULE
 668     /*
 669      * Legacy key "origin" is composed of a pointer to an EVP_PKEY_ASN1_METHOD,
 670      * a pointer to a low level key and possibly a pointer to an engine.
 671      */
 672     const EVP_PKEY_ASN1_METHOD *ameth;
 673     ENGINE *engine;
 674     ENGINE *pmeth_engine; /* If not NULL public key ENGINE to use */
 675
 676     /* Union to store the reference to an origin legacy key */
 677     union legacy_pkey_st pkey;
 678
 679     /* Union to store the reference to a non-origin legacy key */
 680     union legacy_pkey_st legacy_cache_pkey;
 681 # endif
 682
 683     /* == Common attributes == */
 684     CRYPTO_REF_COUNT references;
 685     CRYPTO_RWLOCK *lock;
 686 #ifndef FIPS_MODULE
 687     STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
 688     int save_parameters;
 689     unsigned int foreign:1; /* the low-level key is using an engine or an app-method */
 690     CRYPTO_EX_DATA ex_data;
 691 #endif
 692
 693     /* == Provider attributes == */
 694
 695     /*
 696      * Provider keydata "origin" is composed of a pointer to an EVP_KEYMGMT
 697      * and a pointer to the provider side key data.  This is never used at
 698      * the same time as the legacy key data above.
 699      */
 700     EVP_KEYMGMT *keymgmt;
 701     void *keydata;
 702     /*
 703      * If any libcrypto code does anything that may modify the keydata
 704      * contents, this dirty counter must be incremented.
 705      */
 706     size_t dirty_cnt;
 707
 708     /*
 709      * To support transparent execution of operation in backends other
 710      * than the "origin" key, we support transparent export/import to
 711      * those providers, and maintain a cache of the imported keydata,
 712      * so we don't need to redo the export/import every time we perform
 713      * the same operation in that same provider.
 714      */
 715     STACK_OF(OP_CACHE_ELEM) *operation_cache;
 716
 717     /*
 718      * We keep a copy of that "origin"'s dirty count, so we know if the
 719      * operation cache needs flushing.
 720      */
 721     size_t dirty_cnt_copy;
 722
 723     /* Cache of key object information */
 724     struct {
 725         int bits;
 726         int security_bits;
 727         int size;
 728     } cache;
 729 } /* EVP_PKEY */ ;
 730
 731 #define EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) \
 732     ((ctx)->operation == EVP_PKEY_OP_SIGN \
 733      || (ctx)->operation == EVP_PKEY_OP_SIGNCTX \
 734      || (ctx)->operation == EVP_PKEY_OP_VERIFY \
 735      || (ctx)->operation == EVP_PKEY_OP_VERIFYCTX \
 736      || (ctx)->operation == EVP_PKEY_OP_VERIFYRECOVER)
 737
 738 #define EVP_PKEY_CTX_IS_DERIVE_OP(ctx) \
 739     ((ctx)->operation == EVP_PKEY_OP_DERIVE)
 740
 741 #define EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) \
 742     ((ctx)->operation == EVP_PKEY_OP_ENCRYPT \
 743      || (ctx)->operation == EVP_PKEY_OP_DECRYPT)
 744
 745 #define EVP_PKEY_CTX_IS_GEN_OP(ctx) \
 746     ((ctx)->operation == EVP_PKEY_OP_PARAMGEN \
 747      || (ctx)->operation == EVP_PKEY_OP_KEYGEN)
 748
 749 #define EVP_PKEY_CTX_IS_FROMDATA_OP(ctx) \
 750     ((ctx)->operation == EVP_PKEY_OP_FROMDATA)
 751
 752 #define EVP_PKEY_CTX_IS_KEM_OP(ctx) \
 753     ((ctx)->operation == EVP_PKEY_OP_ENCAPSULATE \
 754      || (ctx)->operation == EVP_PKEY_OP_DECAPSULATE)
 755
 756 void openssl_add_all_ciphers_int(void);
 757 void openssl_add_all_digests_int(void);
 758 void evp_cleanup_int(void);
 759 void evp_app_cleanup_int(void);
 760 void *evp_pkey_export_to_provider(EVP_PKEY *pk, OSSL_LIB_CTX *libctx,
 761                                   EVP_KEYMGMT **keymgmt,
 762                                   const char *propquery);
 763 #ifndef FIPS_MODULE
 764 int evp_pkey_copy_downgraded(EVP_PKEY **dest, const EVP_PKEY *src);
 765 void *evp_pkey_get_legacy(EVP_PKEY *pk);
 766 void evp_pkey_free_legacy(EVP_PKEY *x);
 767 EVP_PKEY *evp_pkcs82pkey_legacy(const PKCS8_PRIV_KEY_INFO *p8inf,
 768                                 OSSL_LIB_CTX *libctx, const char *propq);
 769 #endif
 770
 771 /*
 772  * KEYMGMT utility functions
 773  */
 774
 775 /*
 776  * Key import structure and helper function, to be used as an export callback
 777  */
 778 struct evp_keymgmt_util_try_import_data_st {
 779     EVP_KEYMGMT *keymgmt;
 780     void *keydata;
 781
 782     int selection;
 783 };
 784 int evp_keymgmt_util_try_import(const OSSL_PARAM params[], void *arg);
 785 int evp_keymgmt_util_assign_pkey(EVP_PKEY *pkey, EVP_KEYMGMT *keymgmt,
 786                                  void *keydata);
 787 EVP_PKEY *evp_keymgmt_util_make_pkey(EVP_KEYMGMT *keymgmt, void *keydata);
 788
 789 int evp_keymgmt_util_export(const EVP_PKEY *pk, int selection,
 790                             OSSL_CALLBACK *export_cb, void *export_cbarg);
 791 void *evp_keymgmt_util_export_to_provider(EVP_PKEY *pk, EVP_KEYMGMT *keymgmt);
 792 OP_CACHE_ELEM *evp_keymgmt_util_find_operation_cache(EVP_PKEY *pk,
 793                                                      EVP_KEYMGMT *keymgmt);
 794 int evp_keymgmt_util_clear_operation_cache(EVP_PKEY *pk, int locking);
 795 int evp_keymgmt_util_cache_keydata(EVP_PKEY *pk,
 796                                    EVP_KEYMGMT *keymgmt, void *keydata);
 797 void evp_keymgmt_util_cache_keyinfo(EVP_PKEY *pk);
 798 void *evp_keymgmt_util_fromdata(EVP_PKEY *target, EVP_KEYMGMT *keymgmt,
 799                                 int selection, const OSSL_PARAM params[]);
 800 int evp_keymgmt_util_has(EVP_PKEY *pk, int selection);
 801 int evp_keymgmt_util_match(EVP_PKEY *pk1, EVP_PKEY *pk2, int selection);
 802 int evp_keymgmt_util_copy(EVP_PKEY *to, EVP_PKEY *from, int selection);
 803 void *evp_keymgmt_util_gen(EVP_PKEY *target, EVP_KEYMGMT *keymgmt,
 804                            void *genctx, OSSL_CALLBACK *cb, void *cbarg);
 805 int evp_keymgmt_util_get_deflt_digest_name(EVP_KEYMGMT *keymgmt,
 806                                            void *keydata,
 807                                            char *mdname, size_t mdname_sz);
 808
 809 /*
 810  * KEYMGMT provider interface functions
 811  */
 812 void *evp_keymgmt_newdata(const EVP_KEYMGMT *keymgmt);
 813 void evp_keymgmt_freedata(const EVP_KEYMGMT *keymgmt, void *keyddata);
 814 int evp_keymgmt_get_params(const EVP_KEYMGMT *keymgmt,
 815                            void *keydata, OSSL_PARAM params[]);
 816 int evp_keymgmt_set_params(const EVP_KEYMGMT *keymgmt,
 817                            void *keydata, const OSSL_PARAM params[]);
 818 void *evp_keymgmt_gen_init(const EVP_KEYMGMT *keymgmt, int selection,
 819                            const OSSL_PARAM params[]);
 820 int evp_keymgmt_gen_set_template(const EVP_KEYMGMT *keymgmt, void *genctx,
 821                                  void *template);
 822 int evp_keymgmt_gen_set_params(const EVP_KEYMGMT *keymgmt, void *genctx,
 823                                const OSSL_PARAM params[]);
 824 void *evp_keymgmt_gen(const EVP_KEYMGMT *keymgmt, void *genctx,
 825                       OSSL_CALLBACK *cb, void *cbarg);
 826 void evp_keymgmt_gen_cleanup(const EVP_KEYMGMT *keymgmt, void *genctx);
 827
 828 int evp_keymgmt_has_load(const EVP_KEYMGMT *keymgmt);
 829 void *evp_keymgmt_load(const EVP_KEYMGMT *keymgmt,
 830                        const void *objref, size_t objref_sz);
 831
 832 int evp_keymgmt_has(const EVP_KEYMGMT *keymgmt, void *keyddata, int selection);
 833 int evp_keymgmt_validate(const EVP_KEYMGMT *keymgmt, void *keydata,
 834                          int selection, int checktype);
 835 int evp_keymgmt_match(const EVP_KEYMGMT *keymgmt,
 836                       const void *keydata1, const void *keydata2,
 837                       int selection);
 838
 839 int evp_keymgmt_import(const EVP_KEYMGMT *keymgmt, void *keydata,
 840                        int selection, const OSSL_PARAM params[]);
 841 const OSSL_PARAM *evp_keymgmt_import_types(const EVP_KEYMGMT *keymgmt,
 842                                            int selection);
 843 int evp_keymgmt_export(const EVP_KEYMGMT *keymgmt, void *keydata,
 844                        int selection, OSSL_CALLBACK *param_cb, void *cbarg);
 845 const OSSL_PARAM *evp_keymgmt_export_types(const EVP_KEYMGMT *keymgmt,
 846                                            int selection);
 847 void *evp_keymgmt_dup(const EVP_KEYMGMT *keymgmt,
 848                       const void *keydata_from, int selection);
 849
 850 /* Pulling defines out of C source files */
 851
 852 # define EVP_RC4_KEY_SIZE 16
 853 # ifndef TLS1_1_VERSION
 854 #  define TLS1_1_VERSION   0x0302
 855 # endif
 856
 857 void evp_encode_ctx_set_flags(EVP_ENCODE_CTX *ctx, unsigned int flags);
 858
 859 /* EVP_ENCODE_CTX flags */
 860 /* Don't generate new lines when encoding */
 861 #define EVP_ENCODE_CTX_NO_NEWLINES          1
 862 /* Use the SRP base64 alphabet instead of the standard one */
 863 #define EVP_ENCODE_CTX_USE_SRP_ALPHABET     2
 864
 865 const EVP_CIPHER *evp_get_cipherbyname_ex(OSSL_LIB_CTX *libctx,
 866                                           const char *name);
 867 const EVP_MD *evp_get_digestbyname_ex(OSSL_LIB_CTX *libctx,
 868                                       const char *name);
 869
 870 int ossl_pkcs5_pbkdf2_hmac_ex(const char *pass, int passlen,
 871                               const unsigned char *salt, int saltlen, int iter,
 872                               const EVP_MD *digest, int keylen,
 873                               unsigned char *out,
 874                               OSSL_LIB_CTX *libctx, const char *propq);
 875
 876 # ifndef FIPS_MODULE
 877 /*
 878  * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params().
 879  *
 880  * Return 1 on success, 0 or negative for errors.
 881  *
 882  * In particular they return -2 if any of the params is not supported.
 883  *
 884  * They are not available in FIPS_MODULE as they depend on
 885  *      - EVP_PKEY_CTX_{get,set}_params()
 886  *      - EVP_PKEY_CTX_{gettable,settable}_params()
 887  *
 888  */
 889 int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params);
 890 int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params);
 891
 892 EVP_MD_CTX *evp_md_ctx_new_ex(EVP_PKEY *pkey, const ASN1_OCTET_STRING *id,
 893                               OSSL_LIB_CTX *libctx, const char *propq);
 894 int evp_pkey_name2type(const char *name);
 895 const char *evp_pkey_type2name(int type);
 896
 897 int evp_pkey_ctx_set1_id_prov(EVP_PKEY_CTX *ctx, const void *id, int len);
 898 int evp_pkey_ctx_get1_id_prov(EVP_PKEY_CTX *ctx, void *id);
 899 int evp_pkey_ctx_get1_id_len_prov(EVP_PKEY_CTX *ctx, size_t *id_len);
 900
 901 int evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX *ctx);
 902 # endif /* !defined(FIPS_MODULE) */
 903
 904 int evp_method_store_flush(OSSL_LIB_CTX *libctx);
 905 int evp_set_default_properties_int(OSSL_LIB_CTX *libctx, const char *propq,
 906                                    int loadconfig, int mirrored);
 907 char *evp_get_global_properties_str(OSSL_LIB_CTX *libctx, int loadconfig);
 908
 909 void evp_md_ctx_clear_digest(EVP_MD_CTX *ctx, int force);
 910
 911 /* Three possible states: */
 912 # define EVP_PKEY_STATE_UNKNOWN         0
 913 # define EVP_PKEY_STATE_LEGACY          1
 914 # define EVP_PKEY_STATE_PROVIDER        2
 915 int evp_pkey_ctx_state(const EVP_PKEY_CTX *ctx);
 916
 917 /* These two must ONLY be called for provider side operations */
 918 int evp_pkey_ctx_ctrl_to_param(EVP_PKEY_CTX *ctx,
 919                                int keytype, int optype,
 920                                int cmd, int p1, void *p2);
 921 int evp_pkey_ctx_ctrl_str_to_param(EVP_PKEY_CTX *ctx,
 922                                    const char *name, const char *value);
 923
 924 /* These two must ONLY be called for legacy operations */
 925 int evp_pkey_ctx_set_params_to_ctrl(EVP_PKEY_CTX *ctx, const OSSL_PARAM *params);
 926 int evp_pkey_ctx_get_params_to_ctrl(EVP_PKEY_CTX *ctx, OSSL_PARAM *params);
 927
 928 /* This must ONLY be called for legacy EVP_PKEYs */
 929 int evp_pkey_get_params_to_ctrl(const EVP_PKEY *pkey, OSSL_PARAM *params);
 930
 931 /* Same as the public get0 functions but are not const */
 932 # ifndef OPENSSL_NO_DEPRECATED_3_0
 933 DH *evp_pkey_get0_DH_int(const EVP_PKEY *pkey);
 934 EC_KEY *evp_pkey_get0_EC_KEY_int(const EVP_PKEY *pkey);
 935 RSA *evp_pkey_get0_RSA_int(const EVP_PKEY *pkey);
 936 # endif
 937
 938 /* Get internal identification number routines */
 939 int evp_asym_cipher_get_number(const EVP_ASYM_CIPHER *cipher);
 940 int evp_cipher_get_number(const EVP_CIPHER *cipher);
 941 int evp_kdf_get_number(const EVP_KDF *kdf);
 942 int evp_kem_get_number(const EVP_KEM *wrap);
 943 int evp_keyexch_get_number(const EVP_KEYEXCH *keyexch);
 944 int evp_keymgmt_get_number(const EVP_KEYMGMT *keymgmt);
 945 int evp_mac_get_number(const EVP_MAC *mac);
 946 int evp_md_get_number(const EVP_MD *md);
 947 int evp_rand_get_number(const EVP_RAND *rand);
 948 int evp_signature_get_number(const EVP_SIGNATURE *signature);
 949
 950 #endif /* OSSL_CRYPTO_EVP_H */