crypto/include/internal/evp_int.h

   1 /*
   2  * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (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 #include <openssl/evp.h>
  11 #include "internal/refcount.h"
  12
  13 /*
  14  * Don't free up md_ctx->pctx in EVP_MD_CTX_reset, use the reserved flag
  15  * values in evp.h
  16  */
  17 #define EVP_MD_CTX_FLAG_KEEP_PKEY_CTX   0x0400
  18
  19 struct evp_pkey_ctx_st {
  20     /* Method associated with this operation */
  21     const EVP_PKEY_METHOD *pmeth;
  22     /* Engine that implements this method or NULL if builtin */
  23     ENGINE *engine;
  24     /* Key: may be NULL */
  25     EVP_PKEY *pkey;
  26     /* Peer key for key agreement, may be NULL */
  27     EVP_PKEY *peerkey;
  28     /* Actual operation */
  29     int operation;
  30     /* Algorithm specific data */
  31     void *data;
  32     /* Application specific data */
  33     void *app_data;
  34     /* Keygen callback */
  35     EVP_PKEY_gen_cb *pkey_gencb;
  36     /* implementation specific keygen data */
  37     int *keygen_info;
  38     int keygen_info_count;
  39 } /* EVP_PKEY_CTX */ ;
  40
  41 #define EVP_PKEY_FLAG_DYNAMIC   1
  42
  43 struct evp_pkey_method_st {
  44     int pkey_id;
  45     int flags;
  46     int (*init) (EVP_PKEY_CTX *ctx);
  47     int (*copy) (EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src);
  48     void (*cleanup) (EVP_PKEY_CTX *ctx);
  49     int (*paramgen_init) (EVP_PKEY_CTX *ctx);
  50     int (*paramgen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
  51     int (*keygen_init) (EVP_PKEY_CTX *ctx);
  52     int (*keygen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
  53     int (*sign_init) (EVP_PKEY_CTX *ctx);
  54     int (*sign) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
  55                  const unsigned char *tbs, size_t tbslen);
  56     int (*verify_init) (EVP_PKEY_CTX *ctx);
  57     int (*verify) (EVP_PKEY_CTX *ctx,
  58                    const unsigned char *sig, size_t siglen,
  59                    const unsigned char *tbs, size_t tbslen);
  60     int (*verify_recover_init) (EVP_PKEY_CTX *ctx);
  61     int (*verify_recover) (EVP_PKEY_CTX *ctx,
  62                            unsigned char *rout, size_t *routlen,
  63                            const unsigned char *sig, size_t siglen);
  64     int (*signctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
  65     int (*signctx) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
  66                     EVP_MD_CTX *mctx);
  67     int (*verifyctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
  68     int (*verifyctx) (EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
  69                       EVP_MD_CTX *mctx);
  70     int (*encrypt_init) (EVP_PKEY_CTX *ctx);
  71     int (*encrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
  72                     const unsigned char *in, size_t inlen);
  73     int (*decrypt_init) (EVP_PKEY_CTX *ctx);
  74     int (*decrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
  75                     const unsigned char *in, size_t inlen);
  76     int (*derive_init) (EVP_PKEY_CTX *ctx);
  77     int (*derive) (EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
  78     int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
  79     int (*ctrl_str) (EVP_PKEY_CTX *ctx, const char *type, const char *value);
  80     int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
  81                        const unsigned char *tbs, size_t tbslen);
  82     int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
  83                          size_t siglen, const unsigned char *tbs,
  84                          size_t tbslen);
  85     int (*check) (EVP_PKEY *pkey);
  86     int (*public_check) (EVP_PKEY *pkey);
  87     int (*param_check) (EVP_PKEY *pkey);
  88
  89     int (*digest_custom) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
  90 } /* EVP_PKEY_METHOD */ ;
  91
  92 DEFINE_STACK_OF_CONST(EVP_PKEY_METHOD)
  93
  94 void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx);
  95
  96 extern const EVP_PKEY_METHOD cmac_pkey_meth;
  97 extern const EVP_PKEY_METHOD dh_pkey_meth;
  98 extern const EVP_PKEY_METHOD dhx_pkey_meth;
  99 extern const EVP_PKEY_METHOD dsa_pkey_meth;
 100 extern const EVP_PKEY_METHOD ec_pkey_meth;
 101 extern const EVP_PKEY_METHOD sm2_pkey_meth;
 102 extern const EVP_PKEY_METHOD ecx25519_pkey_meth;
 103 extern const EVP_PKEY_METHOD ecx448_pkey_meth;
 104 extern const EVP_PKEY_METHOD ed25519_pkey_meth;
 105 extern const EVP_PKEY_METHOD ed448_pkey_meth;
 106 extern const EVP_PKEY_METHOD hmac_pkey_meth;
 107 extern const EVP_PKEY_METHOD rsa_pkey_meth;
 108 extern const EVP_PKEY_METHOD rsa_pss_pkey_meth;
 109 extern const EVP_PKEY_METHOD scrypt_pkey_meth;
 110 extern const EVP_PKEY_METHOD tls1_prf_pkey_meth;
 111 extern const EVP_PKEY_METHOD hkdf_pkey_meth;
 112 extern const EVP_PKEY_METHOD poly1305_pkey_meth;
 113 extern const EVP_PKEY_METHOD siphash_pkey_meth;
 114
 115 /* struct evp_mac_impl_st is defined by the implementation */
 116 typedef struct evp_mac_impl_st EVP_MAC_IMPL;
 117 struct evp_mac_st {
 118     int type;
 119     EVP_MAC_IMPL *(*new) (void);
 120     int (*copy) (EVP_MAC_IMPL *macdst, EVP_MAC_IMPL *macsrc);
 121     void (*free) (EVP_MAC_IMPL *macctx);
 122     size_t (*size) (EVP_MAC_IMPL *macctx);
 123     int (*init) (EVP_MAC_IMPL *macctx);
 124     int (*update) (EVP_MAC_IMPL *macctx, const unsigned char *data,
 125                    size_t datalen);
 126     int (*final) (EVP_MAC_IMPL *macctx, unsigned char *out);
 127     int (*ctrl) (EVP_MAC_IMPL *macctx, int cmd, va_list args);
 128     int (*ctrl_str) (EVP_MAC_IMPL *macctx, const char *type, const char *value);
 129 };
 130
 131 /*
 132  * This function is internal for now, but can be made external when needed.
 133  * The documentation would read:
 134  *
 135  * EVP_add_mac() adds the MAC implementation C<mac> to the internal
 136  * object database.
 137  */
 138 int EVP_add_mac(const EVP_MAC *mac);
 139
 140 struct evp_md_st {
 141     int type;
 142     int pkey_type;
 143     int md_size;
 144     unsigned long flags;
 145     int (*init) (EVP_MD_CTX *ctx);
 146     int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
 147     int (*final) (EVP_MD_CTX *ctx, unsigned char *md);
 148     int (*copy) (EVP_MD_CTX *to, const EVP_MD_CTX *from);
 149     int (*cleanup) (EVP_MD_CTX *ctx);
 150     int block_size;
 151     int ctx_size;               /* how big does the ctx->md_data need to be */
 152     /* control function */
 153     int (*md_ctrl) (EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
 154 } /* EVP_MD */ ;
 155
 156 struct evp_cipher_st {
 157     int nid;
 158     int block_size;
 159     /* Default value for variable length ciphers */
 160     int key_len;
 161     int iv_len;
 162     /* Various flags */
 163     unsigned long flags;
 164     /* init key */
 165     int (*init) (EVP_CIPHER_CTX *ctx, const unsigned char *key,
 166                  const unsigned char *iv, int enc);
 167     /* encrypt/decrypt data */
 168     int (*do_cipher) (EVP_CIPHER_CTX *ctx, unsigned char *out,
 169                       const unsigned char *in, size_t inl);
 170     /* cleanup ctx */
 171     int (*cleanup) (EVP_CIPHER_CTX *);
 172     /* how big ctx->cipher_data needs to be */
 173     int ctx_size;
 174     /* Populate a ASN1_TYPE with parameters */
 175     int (*set_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
 176     /* Get parameters from a ASN1_TYPE */
 177     int (*get_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
 178     /* Miscellaneous operations */
 179     int (*ctrl) (EVP_CIPHER_CTX *, int type, int arg, void *ptr);
 180     /* Application data */
 181     void *app_data;
 182 } /* EVP_CIPHER */ ;
 183
 184 /* Macros to code block cipher wrappers */
 185
 186 /* Wrapper functions for each cipher mode */
 187
 188 #define EVP_C_DATA(kstruct, ctx) \
 189         ((kstruct *)EVP_CIPHER_CTX_get_cipher_data(ctx))
 190
 191 #define BLOCK_CIPHER_ecb_loop() \
 192         size_t i, bl; \
 193         bl = EVP_CIPHER_CTX_cipher(ctx)->block_size;    \
 194         if (inl < bl) return 1;\
 195         inl -= bl; \
 196         for (i=0; i <= inl; i+=bl)
 197
 198 #define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
 199 static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
 200 {\
 201         BLOCK_CIPHER_ecb_loop() \
 202             cprefix##_ecb_encrypt(in + i, out + i, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_encrypting(ctx)); \
 203         return 1;\
 204 }
 205
 206 #define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))
 207
 208 #define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
 209     static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
 210 {\
 211         while(inl>=EVP_MAXCHUNK) {\
 212             int num = EVP_CIPHER_CTX_num(ctx);\
 213             cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
 214             EVP_CIPHER_CTX_set_num(ctx, num);\
 215             inl-=EVP_MAXCHUNK;\
 216             in +=EVP_MAXCHUNK;\
 217             out+=EVP_MAXCHUNK;\
 218         }\
 219         if (inl) {\
 220             int num = EVP_CIPHER_CTX_num(ctx);\
 221             cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
 222             EVP_CIPHER_CTX_set_num(ctx, num);\
 223         }\
 224         return 1;\
 225 }
 226
 227 #define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
 228 static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
 229 {\
 230         while(inl>=EVP_MAXCHUNK) \
 231             {\
 232             cprefix##_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
 233             inl-=EVP_MAXCHUNK;\
 234             in +=EVP_MAXCHUNK;\
 235             out+=EVP_MAXCHUNK;\
 236             }\
 237         if (inl)\
 238             cprefix##_cbc_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
 239         return 1;\
 240 }
 241
 242 #define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched)  \
 243 static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
 244 {\
 245     size_t chunk = EVP_MAXCHUNK;\
 246     if (cbits == 1)  chunk >>= 3;\
 247     if (inl < chunk) chunk = inl;\
 248     while (inl && inl >= chunk)\
 249     {\
 250         int num = EVP_CIPHER_CTX_num(ctx);\
 251         cprefix##_cfb##cbits##_encrypt(in, out, (long) \
 252             ((cbits == 1) \
 253                 && !EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS) \
 254                 ? chunk*8 : chunk), \
 255             &EVP_C_DATA(kstruct, ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx),\
 256             &num, EVP_CIPHER_CTX_encrypting(ctx));\
 257         EVP_CIPHER_CTX_set_num(ctx, num);\
 258         inl -= chunk;\
 259         in += chunk;\
 260         out += chunk;\
 261         if (inl < chunk) chunk = inl;\
 262     }\
 263     return 1;\
 264 }
 265
 266 #define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
 267         BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
 268         BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
 269         BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
 270         BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
 271
 272 #define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
 273                           key_len, iv_len, flags, init_key, cleanup, \
 274                           set_asn1, get_asn1, ctrl) \
 275 static const EVP_CIPHER cname##_##mode = { \
 276         nid##_##nmode, block_size, key_len, iv_len, \
 277         flags | EVP_CIPH_##MODE##_MODE, \
 278         init_key, \
 279         cname##_##mode##_cipher, \
 280         cleanup, \
 281         sizeof(kstruct), \
 282         set_asn1, get_asn1,\
 283         ctrl, \
 284         NULL \
 285 }; \
 286 const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
 287
 288 #define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
 289                              iv_len, flags, init_key, cleanup, set_asn1, \
 290                              get_asn1, ctrl) \
 291 BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
 292                   iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
 293
 294 #define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
 295                              iv_len, cbits, flags, init_key, cleanup, \
 296                              set_asn1, get_asn1, ctrl) \
 297 BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
 298                   key_len, iv_len, flags, init_key, cleanup, set_asn1, \
 299                   get_asn1, ctrl)
 300
 301 #define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
 302                              iv_len, cbits, flags, init_key, cleanup, \
 303                              set_asn1, get_asn1, ctrl) \
 304 BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
 305                   key_len, iv_len, flags, init_key, cleanup, set_asn1, \
 306                   get_asn1, ctrl)
 307
 308 #define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
 309                              flags, init_key, cleanup, set_asn1, \
 310                              get_asn1, ctrl) \
 311 BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
 312                   0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
 313
 314 #define BLOCK_CIPHER_defs(cname, kstruct, \
 315                           nid, block_size, key_len, iv_len, cbits, flags, \
 316                           init_key, cleanup, set_asn1, get_asn1, ctrl) \
 317 BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
 318                      init_key, cleanup, set_asn1, get_asn1, ctrl) \
 319 BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
 320                      flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
 321 BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
 322                      flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
 323 BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
 324                      init_key, cleanup, set_asn1, get_asn1, ctrl)
 325
 326 /*-
 327 #define BLOCK_CIPHER_defs(cname, kstruct, \
 328                                 nid, block_size, key_len, iv_len, flags,\
 329                                  init_key, cleanup, set_asn1, get_asn1, ctrl)\
 330 static const EVP_CIPHER cname##_cbc = {\
 331         nid##_cbc, block_size, key_len, iv_len, \
 332         flags | EVP_CIPH_CBC_MODE,\
 333         init_key,\
 334         cname##_cbc_cipher,\
 335         cleanup,\
 336         sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
 337                 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
 338         set_asn1, get_asn1,\
 339         ctrl, \
 340         NULL \
 341 };\
 342 const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
 343 static const EVP_CIPHER cname##_cfb = {\
 344         nid##_cfb64, 1, key_len, iv_len, \
 345         flags | EVP_CIPH_CFB_MODE,\
 346         init_key,\
 347         cname##_cfb_cipher,\
 348         cleanup,\
 349         sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
 350                 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
 351         set_asn1, get_asn1,\
 352         ctrl,\
 353         NULL \
 354 };\
 355 const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
 356 static const EVP_CIPHER cname##_ofb = {\
 357         nid##_ofb64, 1, key_len, iv_len, \
 358         flags | EVP_CIPH_OFB_MODE,\
 359         init_key,\
 360         cname##_ofb_cipher,\
 361         cleanup,\
 362         sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
 363                 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
 364         set_asn1, get_asn1,\
 365         ctrl,\
 366         NULL \
 367 };\
 368 const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
 369 static const EVP_CIPHER cname##_ecb = {\
 370         nid##_ecb, block_size, key_len, iv_len, \
 371         flags | EVP_CIPH_ECB_MODE,\
 372         init_key,\
 373         cname##_ecb_cipher,\
 374         cleanup,\
 375         sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
 376                 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
 377         set_asn1, get_asn1,\
 378         ctrl,\
 379         NULL \
 380 };\
 381 const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
 382 */
 383
 384 #define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \
 385                                block_size, key_len, iv_len, cbits, \
 386                                flags, init_key, \
 387                                cleanup, set_asn1, get_asn1, ctrl) \
 388         BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
 389         BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \
 390                           cbits, flags, init_key, cleanup, set_asn1, \
 391                           get_asn1, ctrl)
 392
 393 #define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \
 394         BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \
 395         BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \
 396                              NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \
 397                              (fl)|EVP_CIPH_FLAG_DEFAULT_ASN1, \
 398                              cipher##_init_key, NULL, NULL, NULL, NULL)
 399
 400
 401 # ifndef OPENSSL_NO_EC
 402
 403 #define X25519_KEYLEN        32
 404 #define X448_KEYLEN          56
 405 #define ED448_KEYLEN         57
 406
 407 #define MAX_KEYLEN  ED448_KEYLEN
 408
 409 typedef struct {
 410     unsigned char pubkey[MAX_KEYLEN];
 411     unsigned char *privkey;
 412 } ECX_KEY;
 413
 414 #endif
 415
 416 /*
 417  * Type needs to be a bit field Sub-type needs to be for variations on the
 418  * method, as in, can it do arbitrary encryption....
 419  */
 420 struct evp_pkey_st {
 421     int type;
 422     int save_type;
 423     CRYPTO_REF_COUNT references;
 424     const EVP_PKEY_ASN1_METHOD *ameth;
 425     ENGINE *engine;
 426     ENGINE *pmeth_engine; /* If not NULL public key ENGINE to use */
 427     union {
 428         void *ptr;
 429 # ifndef OPENSSL_NO_RSA
 430         struct rsa_st *rsa;     /* RSA */
 431 # endif
 432 # ifndef OPENSSL_NO_DSA
 433         struct dsa_st *dsa;     /* DSA */
 434 # endif
 435 # ifndef OPENSSL_NO_DH
 436         struct dh_st *dh;       /* DH */
 437 # endif
 438 # ifndef OPENSSL_NO_EC
 439         struct ec_key_st *ec;   /* ECC */
 440         ECX_KEY *ecx;           /* X25519, X448, Ed25519, Ed448 */
 441 # endif
 442     } pkey;
 443     int save_parameters;
 444     STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
 445     CRYPTO_RWLOCK *lock;
 446 } /* EVP_PKEY */ ;
 447
 448
 449 void openssl_add_all_ciphers_int(void);
 450 void openssl_add_all_digests_int(void);
 451 void openssl_add_all_macs_int(void);
 452 void evp_cleanup_int(void);
 453 void evp_app_cleanup_int(void);
 454
 455 /* Pulling defines out of C source files */
 456
 457 #define EVP_RC4_KEY_SIZE 16
 458 #ifndef TLS1_1_VERSION
 459 # define TLS1_1_VERSION   0x0302
 460 #endif
 461
 462 void evp_encode_ctx_set_flags(EVP_ENCODE_CTX *ctx, unsigned int flags);
 463
 464 /* EVP_ENCODE_CTX flags */
 465 /* Don't generate new lines when encoding */
 466 #define EVP_ENCODE_CTX_NO_NEWLINES          1
 467 /* Use the SRP base64 alphabet instead of the standard one */
 468 #define EVP_ENCODE_CTX_USE_SRP_ALPHABET     2