2 * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
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
10 #include <openssl/evp.h>
11 #include <openssl/core_numbers.h>
12 #include "internal/refcount.h"
15 * Don't free up md_ctx->pctx in EVP_MD_CTX_reset, use the reserved flag
18 #define EVP_MD_CTX_FLAG_KEEP_PKEY_CTX 0x0400
20 struct evp_pkey_ctx_st {
21 EVP_KEYEXCH *exchange;
24 /* Legacy fields below */
26 /* Method associated with this operation */
27 const EVP_PKEY_METHOD *pmeth;
28 /* Engine that implements this method or NULL if builtin */
30 /* Key: may be NULL */
32 /* Peer key for key agreement, may be NULL */
34 /* Actual operation */
36 /* Algorithm specific data */
38 /* Application specific data */
41 EVP_PKEY_gen_cb *pkey_gencb;
42 /* implementation specific keygen data */
44 int keygen_info_count;
45 } /* EVP_PKEY_CTX */ ;
47 #define EVP_PKEY_FLAG_DYNAMIC 1
49 struct evp_pkey_method_st {
52 int (*init) (EVP_PKEY_CTX *ctx);
53 int (*copy) (EVP_PKEY_CTX *dst, const EVP_PKEY_CTX *src);
54 void (*cleanup) (EVP_PKEY_CTX *ctx);
55 int (*paramgen_init) (EVP_PKEY_CTX *ctx);
56 int (*paramgen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
57 int (*keygen_init) (EVP_PKEY_CTX *ctx);
58 int (*keygen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
59 int (*sign_init) (EVP_PKEY_CTX *ctx);
60 int (*sign) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
61 const unsigned char *tbs, size_t tbslen);
62 int (*verify_init) (EVP_PKEY_CTX *ctx);
63 int (*verify) (EVP_PKEY_CTX *ctx,
64 const unsigned char *sig, size_t siglen,
65 const unsigned char *tbs, size_t tbslen);
66 int (*verify_recover_init) (EVP_PKEY_CTX *ctx);
67 int (*verify_recover) (EVP_PKEY_CTX *ctx,
68 unsigned char *rout, size_t *routlen,
69 const unsigned char *sig, size_t siglen);
70 int (*signctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
71 int (*signctx) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
73 int (*verifyctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
74 int (*verifyctx) (EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
76 int (*encrypt_init) (EVP_PKEY_CTX *ctx);
77 int (*encrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
78 const unsigned char *in, size_t inlen);
79 int (*decrypt_init) (EVP_PKEY_CTX *ctx);
80 int (*decrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
81 const unsigned char *in, size_t inlen);
82 int (*derive_init) (EVP_PKEY_CTX *ctx);
83 int (*derive) (EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
84 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
85 int (*ctrl_str) (EVP_PKEY_CTX *ctx, const char *type, const char *value);
86 int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
87 const unsigned char *tbs, size_t tbslen);
88 int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
89 size_t siglen, const unsigned char *tbs,
91 int (*check) (EVP_PKEY *pkey);
92 int (*public_check) (EVP_PKEY *pkey);
93 int (*param_check) (EVP_PKEY *pkey);
95 int (*digest_custom) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
96 } /* EVP_PKEY_METHOD */ ;
98 DEFINE_STACK_OF_CONST(EVP_PKEY_METHOD)
100 void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx);
102 extern const EVP_PKEY_METHOD cmac_pkey_meth;
103 extern const EVP_PKEY_METHOD dh_pkey_meth;
104 extern const EVP_PKEY_METHOD dhx_pkey_meth;
105 extern const EVP_PKEY_METHOD dsa_pkey_meth;
106 extern const EVP_PKEY_METHOD ec_pkey_meth;
107 extern const EVP_PKEY_METHOD sm2_pkey_meth;
108 extern const EVP_PKEY_METHOD ecx25519_pkey_meth;
109 extern const EVP_PKEY_METHOD ecx448_pkey_meth;
110 extern const EVP_PKEY_METHOD ed25519_pkey_meth;
111 extern const EVP_PKEY_METHOD ed448_pkey_meth;
112 extern const EVP_PKEY_METHOD hmac_pkey_meth;
113 extern const EVP_PKEY_METHOD rsa_pkey_meth;
114 extern const EVP_PKEY_METHOD rsa_pss_pkey_meth;
115 extern const EVP_PKEY_METHOD scrypt_pkey_meth;
116 extern const EVP_PKEY_METHOD tls1_prf_pkey_meth;
117 extern const EVP_PKEY_METHOD hkdf_pkey_meth;
118 extern const EVP_PKEY_METHOD poly1305_pkey_meth;
119 extern const EVP_PKEY_METHOD siphash_pkey_meth;
121 /* struct evp_mac_impl_st is defined by the implementation */
122 typedef struct evp_mac_impl_st EVP_MAC_IMPL;
125 EVP_MAC_IMPL *(*new) (void);
126 EVP_MAC_IMPL *(*dup) (const EVP_MAC_IMPL *macsrc);
127 void (*free) (EVP_MAC_IMPL *macctx);
128 size_t (*size) (EVP_MAC_IMPL *macctx);
129 int (*init) (EVP_MAC_IMPL *macctx);
130 int (*update) (EVP_MAC_IMPL *macctx, const unsigned char *data,
132 int (*final) (EVP_MAC_IMPL *macctx, unsigned char *out);
133 int (*ctrl) (EVP_MAC_IMPL *macctx, int cmd, va_list args);
134 int (*ctrl_str) (EVP_MAC_IMPL *macctx, const char *type, const char *value);
137 extern const EVP_MAC blake2b_mac_meth;
138 extern const EVP_MAC blake2s_mac_meth;
139 extern const EVP_MAC cmac_meth;
140 extern const EVP_MAC gmac_meth;
141 extern const EVP_MAC hmac_meth;
142 extern const EVP_MAC kmac128_meth;
143 extern const EVP_MAC kmac256_meth;
144 extern const EVP_MAC siphash_meth;
145 extern const EVP_MAC poly1305_meth;
147 /* Internal keccak algorithms used for KMAC */
148 const EVP_MD *evp_keccak_kmac128(void);
149 const EVP_MD *evp_keccak_kmac256(void);
152 * This function is internal for now, but can be made external when needed.
153 * The documentation would read:
155 * EVP_add_mac() adds the MAC implementation C<mac> to the internal
158 int EVP_add_mac(const EVP_MAC *mac);
159 int EVP_add_kdf(const EVP_KDF *kdf);
161 /* struct evp_kdf_impl_st is defined by the implementation */
162 typedef struct evp_kdf_impl_st EVP_KDF_IMPL;
165 EVP_KDF_IMPL *(*new) (void);
166 void (*free) (EVP_KDF_IMPL *impl);
167 void (*reset) (EVP_KDF_IMPL *impl);
168 int (*ctrl) (EVP_KDF_IMPL *impl, int cmd, va_list args);
169 int (*ctrl_str) (EVP_KDF_IMPL *impl, const char *type, const char *value);
170 size_t (*size) (EVP_KDF_IMPL *impl);
171 int (*derive) (EVP_KDF_IMPL *impl, unsigned char *key, size_t keylen);
174 extern const EVP_KDF pbkdf2_kdf_meth;
175 extern const EVP_KDF scrypt_kdf_meth;
176 extern const EVP_KDF tls1_prf_kdf_meth;
177 extern const EVP_KDF hkdf_kdf_meth;
178 extern const EVP_KDF sshkdf_kdf_meth;
179 extern const EVP_KDF ss_kdf_meth;
180 extern const EVP_KDF x963_kdf_meth;
181 extern const EVP_KDF x942_kdf_meth;
187 /* Legacy structure members */
188 /* TODO(3.0): Remove these */
192 int (*init) (EVP_MD_CTX *ctx);
193 int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
194 int (*final) (EVP_MD_CTX *ctx, unsigned char *md);
195 int (*copy) (EVP_MD_CTX *to, const EVP_MD_CTX *from);
196 int (*cleanup) (EVP_MD_CTX *ctx);
198 int ctx_size; /* how big does the ctx->md_data need to be */
199 /* control function */
200 int (*md_ctrl) (EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
202 /* New structure members */
203 /* TODO(3.0): Remove above comment when legacy has gone */
206 CRYPTO_REF_COUNT refcnt;
208 OSSL_OP_digest_newctx_fn *newctx;
209 OSSL_OP_digest_init_fn *dinit;
210 OSSL_OP_digest_update_fn *dupdate;
211 OSSL_OP_digest_final_fn *dfinal;
212 OSSL_OP_digest_digest_fn *digest;
213 OSSL_OP_digest_freectx_fn *freectx;
214 OSSL_OP_digest_dupctx_fn *dupctx;
215 OSSL_OP_digest_get_params_fn *get_params;
216 OSSL_OP_digest_ctx_set_params_fn *ctx_set_params;
217 OSSL_OP_digest_ctx_get_params_fn *ctx_get_params;
218 OSSL_OP_digest_gettable_params_fn *gettable_params;
219 OSSL_OP_digest_settable_ctx_params_fn *settable_ctx_params;
220 OSSL_OP_digest_gettable_ctx_params_fn *gettable_ctx_params;
224 struct evp_cipher_st {
228 /* Default value for variable length ciphers */
232 /* Legacy structure members */
233 /* TODO(3.0): Remove these */
237 int (*init) (EVP_CIPHER_CTX *ctx, const unsigned char *key,
238 const unsigned char *iv, int enc);
239 /* encrypt/decrypt data */
240 int (*do_cipher) (EVP_CIPHER_CTX *ctx, unsigned char *out,
241 const unsigned char *in, size_t inl);
243 int (*cleanup) (EVP_CIPHER_CTX *);
244 /* how big ctx->cipher_data needs to be */
246 /* Populate a ASN1_TYPE with parameters */
247 int (*set_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
248 /* Get parameters from a ASN1_TYPE */
249 int (*get_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
250 /* Miscellaneous operations */
251 int (*ctrl) (EVP_CIPHER_CTX *, int type, int arg, void *ptr);
252 /* Application data */
255 /* New structure members */
256 /* TODO(3.0): Remove above comment when legacy has gone */
259 CRYPTO_REF_COUNT refcnt;
261 OSSL_OP_cipher_newctx_fn *newctx;
262 OSSL_OP_cipher_encrypt_init_fn *einit;
263 OSSL_OP_cipher_decrypt_init_fn *dinit;
264 OSSL_OP_cipher_update_fn *cupdate;
265 OSSL_OP_cipher_final_fn *cfinal;
266 OSSL_OP_cipher_cipher_fn *ccipher;
267 OSSL_OP_cipher_freectx_fn *freectx;
268 OSSL_OP_cipher_dupctx_fn *dupctx;
269 OSSL_OP_cipher_get_params_fn *get_params;
270 OSSL_OP_cipher_ctx_get_params_fn *ctx_get_params;
271 OSSL_OP_cipher_ctx_set_params_fn *ctx_set_params;
272 OSSL_OP_cipher_gettable_params_fn *gettable_params;
273 OSSL_OP_cipher_gettable_ctx_params_fn *gettable_ctx_params;
274 OSSL_OP_cipher_settable_ctx_params_fn *settable_ctx_params;
277 /* Macros to code block cipher wrappers */
279 /* Wrapper functions for each cipher mode */
281 #define EVP_C_DATA(kstruct, ctx) \
282 ((kstruct *)EVP_CIPHER_CTX_get_cipher_data(ctx))
284 #define BLOCK_CIPHER_ecb_loop() \
286 bl = EVP_CIPHER_CTX_cipher(ctx)->block_size; \
287 if (inl < bl) return 1;\
289 for (i=0; i <= inl; i+=bl)
291 #define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
292 static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
294 BLOCK_CIPHER_ecb_loop() \
295 cprefix##_ecb_encrypt(in + i, out + i, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_encrypting(ctx)); \
299 #define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))
301 #define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
302 static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
304 while(inl>=EVP_MAXCHUNK) {\
305 int num = EVP_CIPHER_CTX_num(ctx);\
306 cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
307 EVP_CIPHER_CTX_set_num(ctx, num);\
313 int num = EVP_CIPHER_CTX_num(ctx);\
314 cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
315 EVP_CIPHER_CTX_set_num(ctx, num);\
320 #define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
321 static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
323 while(inl>=EVP_MAXCHUNK) \
325 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));\
331 cprefix##_cbc_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
335 #define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
336 static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
338 size_t chunk = EVP_MAXCHUNK;\
339 if (cbits == 1) chunk >>= 3;\
340 if (inl < chunk) chunk = inl;\
341 while (inl && inl >= chunk)\
343 int num = EVP_CIPHER_CTX_num(ctx);\
344 cprefix##_cfb##cbits##_encrypt(in, out, (long) \
346 && !EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS) \
347 ? chunk*8 : chunk), \
348 &EVP_C_DATA(kstruct, ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx),\
349 &num, EVP_CIPHER_CTX_encrypting(ctx));\
350 EVP_CIPHER_CTX_set_num(ctx, num);\
354 if (inl < chunk) chunk = inl;\
359 #define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
360 BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
361 BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
362 BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
363 BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
365 #define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
366 key_len, iv_len, flags, init_key, cleanup, \
367 set_asn1, get_asn1, ctrl) \
368 static const EVP_CIPHER cname##_##mode = { \
369 nid##_##nmode, block_size, key_len, iv_len, \
370 flags | EVP_CIPH_##MODE##_MODE, \
372 cname##_##mode##_cipher, \
379 const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
381 #define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
382 iv_len, flags, init_key, cleanup, set_asn1, \
384 BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
385 iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
387 #define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
388 iv_len, cbits, flags, init_key, cleanup, \
389 set_asn1, get_asn1, ctrl) \
390 BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
391 key_len, iv_len, flags, init_key, cleanup, set_asn1, \
394 #define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
395 iv_len, cbits, flags, init_key, cleanup, \
396 set_asn1, get_asn1, ctrl) \
397 BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
398 key_len, iv_len, flags, init_key, cleanup, set_asn1, \
401 #define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
402 flags, init_key, cleanup, set_asn1, \
404 BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
405 0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
407 #define BLOCK_CIPHER_defs(cname, kstruct, \
408 nid, block_size, key_len, iv_len, cbits, flags, \
409 init_key, cleanup, set_asn1, get_asn1, ctrl) \
410 BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
411 init_key, cleanup, set_asn1, get_asn1, ctrl) \
412 BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
413 flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
414 BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
415 flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
416 BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
417 init_key, cleanup, set_asn1, get_asn1, ctrl)
420 #define BLOCK_CIPHER_defs(cname, kstruct, \
421 nid, block_size, key_len, iv_len, flags,\
422 init_key, cleanup, set_asn1, get_asn1, ctrl)\
423 static const EVP_CIPHER cname##_cbc = {\
424 nid##_cbc, block_size, key_len, iv_len, \
425 flags | EVP_CIPH_CBC_MODE,\
429 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
430 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
435 const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
436 static const EVP_CIPHER cname##_cfb = {\
437 nid##_cfb64, 1, key_len, iv_len, \
438 flags | EVP_CIPH_CFB_MODE,\
442 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
443 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
448 const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
449 static const EVP_CIPHER cname##_ofb = {\
450 nid##_ofb64, 1, key_len, iv_len, \
451 flags | EVP_CIPH_OFB_MODE,\
455 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
456 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
461 const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
462 static const EVP_CIPHER cname##_ecb = {\
463 nid##_ecb, block_size, key_len, iv_len, \
464 flags | EVP_CIPH_ECB_MODE,\
468 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
469 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
474 const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
477 #define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \
478 block_size, key_len, iv_len, cbits, \
480 cleanup, set_asn1, get_asn1, ctrl) \
481 BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
482 BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \
483 cbits, flags, init_key, cleanup, set_asn1, \
486 #define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \
487 BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \
488 BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \
489 NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \
490 (fl)|EVP_CIPH_FLAG_DEFAULT_ASN1, \
491 cipher##_init_key, NULL, NULL, NULL, NULL)
494 # ifndef OPENSSL_NO_EC
496 #define X25519_KEYLEN 32
497 #define X448_KEYLEN 56
498 #define ED448_KEYLEN 57
500 #define MAX_KEYLEN ED448_KEYLEN
503 unsigned char pubkey[MAX_KEYLEN];
504 unsigned char *privkey;
510 * Type needs to be a bit field Sub-type needs to be for variations on the
511 * method, as in, can it do arbitrary encryption....
514 /* == Legacy attributes == */
517 const EVP_PKEY_ASN1_METHOD *ameth;
519 ENGINE *pmeth_engine; /* If not NULL public key ENGINE to use */
522 # ifndef OPENSSL_NO_RSA
523 struct rsa_st *rsa; /* RSA */
525 # ifndef OPENSSL_NO_DSA
526 struct dsa_st *dsa; /* DSA */
528 # ifndef OPENSSL_NO_DH
529 struct dh_st *dh; /* DH */
531 # ifndef OPENSSL_NO_EC
532 struct ec_key_st *ec; /* ECC */
533 ECX_KEY *ecx; /* X25519, X448, Ed25519, Ed448 */
537 /* == Common attributes == */
538 CRYPTO_REF_COUNT references;
540 STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
543 /* == Provider attributes == */
545 * To support transparent export/import between providers that
546 * support the methods for it, and still not having to do the
547 * export/import every time a key is used, we maintain a cache
548 * of imported key, indexed by provider address.
549 * pkeys[0] is *always* the "original" key.
552 EVP_KEYMGMT *keymgmt;
556 * If there is a legacy key assigned to this structure, we keep
557 * a copy of that key's dirty count.
559 size_t dirty_cnt_copy;
563 void openssl_add_all_ciphers_int(void);
564 void openssl_add_all_digests_int(void);
565 void openssl_add_all_macs_int(void);
566 void openssl_add_all_kdfs_int(void);
567 void evp_cleanup_int(void);
568 void evp_app_cleanup_int(void);
570 /* KEYMGMT helper functions */
571 void *evp_keymgmt_export_to_provider(EVP_PKEY *pk, EVP_KEYMGMT *keymgmt);
572 void evp_keymgmt_clear_pkey_cache(EVP_PKEY *pk);
574 /* KEYMGMT provider interface functions */
575 void *evp_keymgmt_importdomparams(const EVP_KEYMGMT *keymgmt,
576 const OSSL_PARAM params[]);
577 void *evp_keymgmt_gendomparams(const EVP_KEYMGMT *keymgmt,
578 const OSSL_PARAM params[]);
579 void evp_keymgmt_freedomparams(const EVP_KEYMGMT *keymgmt,
580 void *provdomparams);
581 int evp_keymgmt_exportdomparams(const EVP_KEYMGMT *keymgmt,
582 void *provdomparams, OSSL_PARAM params[]);
584 evp_keymgmt_importdomparam_types(const EVP_KEYMGMT *keymgmt);
586 evp_keymgmt_exportdomparam_types(const EVP_KEYMGMT *keymgmt);
588 void *evp_keymgmt_importkey(const EVP_KEYMGMT *keymgmt,
589 const OSSL_PARAM params[]);
590 void *evp_keymgmt_genkey(const EVP_KEYMGMT *keymgmt, void *domparams,
591 const OSSL_PARAM params[]);
592 void *evp_keymgmt_loadkey(const EVP_KEYMGMT *keymgmt,
593 void *id, size_t idlen);
594 void evp_keymgmt_freekey(const EVP_KEYMGMT *keymgmt, void *provkey);
595 int evp_keymgmt_exportkey(const EVP_KEYMGMT *keymgmt,
596 void *provkey, OSSL_PARAM params[]);
597 const OSSL_PARAM *evp_keymgmt_importkey_types(const EVP_KEYMGMT *keymgmt);
598 const OSSL_PARAM *evp_keymgmt_exportkey_types(const EVP_KEYMGMT *keymgmt);
600 /* Pulling defines out of C source files */
602 #define EVP_RC4_KEY_SIZE 16
603 #ifndef TLS1_1_VERSION
604 # define TLS1_1_VERSION 0x0302
607 void evp_encode_ctx_set_flags(EVP_ENCODE_CTX *ctx, unsigned int flags);
609 /* EVP_ENCODE_CTX flags */
610 /* Don't generate new lines when encoding */
611 #define EVP_ENCODE_CTX_NO_NEWLINES 1
612 /* Use the SRP base64 alphabet instead of the standard one */
613 #define EVP_ENCODE_CTX_USE_SRP_ALPHABET 2