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openssl/crypto/include/internal/evp_int.h
Shane Lontis 8bbeaaa4fc Added X963KDF API 
X963 KDF is used for CMS ec keyagree Recipient Info.
The X963 KDF that is used by CMS EC Key Agreement has been moved
into a EVP_KDF object. This KDF is almost identical to the the SSKDF
hash variant, so it has been implemented inside the SSKDF code with
its own method table.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8902)
2019-05-16 11:43:41 +10:00

550 lines
20 KiB
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/*
* Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/evp.h>
#include <openssl/core_numbers.h>
#include "internal/refcount.h"
/*
* Don't free up md_ctx->pctx in EVP_MD_CTX_reset, use the reserved flag
* values in evp.h
*/
#define EVP_MD_CTX_FLAG_KEEP_PKEY_CTX 0x0400
struct evp_pkey_ctx_st {
/* Method associated with this operation */
const EVP_PKEY_METHOD *pmeth;
/* Engine that implements this method or NULL if builtin */
ENGINE *engine;
/* Key: may be NULL */
EVP_PKEY *pkey;
/* Peer key for key agreement, may be NULL */
EVP_PKEY *peerkey;
/* Actual operation */
int operation;
/* Algorithm specific data */
void *data;
/* Application specific data */
void *app_data;
/* Keygen callback */
EVP_PKEY_gen_cb *pkey_gencb;
/* implementation specific keygen data */
int *keygen_info;
int keygen_info_count;
} /* EVP_PKEY_CTX */ ;
#define EVP_PKEY_FLAG_DYNAMIC 1
struct evp_pkey_method_st {
int pkey_id;
int flags;
int (*init) (EVP_PKEY_CTX *ctx);
int (*copy) (EVP_PKEY_CTX *dst, const EVP_PKEY_CTX *src);
void (*cleanup) (EVP_PKEY_CTX *ctx);
int (*paramgen_init) (EVP_PKEY_CTX *ctx);
int (*paramgen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
int (*keygen_init) (EVP_PKEY_CTX *ctx);
int (*keygen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
int (*sign_init) (EVP_PKEY_CTX *ctx);
int (*sign) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
const unsigned char *tbs, size_t tbslen);
int (*verify_init) (EVP_PKEY_CTX *ctx);
int (*verify) (EVP_PKEY_CTX *ctx,
const unsigned char *sig, size_t siglen,
const unsigned char *tbs, size_t tbslen);
int (*verify_recover_init) (EVP_PKEY_CTX *ctx);
int (*verify_recover) (EVP_PKEY_CTX *ctx,
unsigned char *rout, size_t *routlen,
const unsigned char *sig, size_t siglen);
int (*signctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
int (*signctx) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
EVP_MD_CTX *mctx);
int (*verifyctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
int (*verifyctx) (EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
EVP_MD_CTX *mctx);
int (*encrypt_init) (EVP_PKEY_CTX *ctx);
int (*encrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
const unsigned char *in, size_t inlen);
int (*decrypt_init) (EVP_PKEY_CTX *ctx);
int (*decrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
const unsigned char *in, size_t inlen);
int (*derive_init) (EVP_PKEY_CTX *ctx);
int (*derive) (EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
int (*ctrl_str) (EVP_PKEY_CTX *ctx, const char *type, const char *value);
int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
const unsigned char *tbs, size_t tbslen);
int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
size_t siglen, const unsigned char *tbs,
size_t tbslen);
int (*check) (EVP_PKEY *pkey);
int (*public_check) (EVP_PKEY *pkey);
int (*param_check) (EVP_PKEY *pkey);
int (*digest_custom) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
} /* EVP_PKEY_METHOD */ ;
DEFINE_STACK_OF_CONST(EVP_PKEY_METHOD)
void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx);
extern const EVP_PKEY_METHOD cmac_pkey_meth;
extern const EVP_PKEY_METHOD dh_pkey_meth;
extern const EVP_PKEY_METHOD dhx_pkey_meth;
extern const EVP_PKEY_METHOD dsa_pkey_meth;
extern const EVP_PKEY_METHOD ec_pkey_meth;
extern const EVP_PKEY_METHOD sm2_pkey_meth;
extern const EVP_PKEY_METHOD ecx25519_pkey_meth;
extern const EVP_PKEY_METHOD ecx448_pkey_meth;
extern const EVP_PKEY_METHOD ed25519_pkey_meth;
extern const EVP_PKEY_METHOD ed448_pkey_meth;
extern const EVP_PKEY_METHOD hmac_pkey_meth;
extern const EVP_PKEY_METHOD rsa_pkey_meth;
extern const EVP_PKEY_METHOD rsa_pss_pkey_meth;
extern const EVP_PKEY_METHOD scrypt_pkey_meth;
extern const EVP_PKEY_METHOD tls1_prf_pkey_meth;
extern const EVP_PKEY_METHOD hkdf_pkey_meth;
extern const EVP_PKEY_METHOD poly1305_pkey_meth;
extern const EVP_PKEY_METHOD siphash_pkey_meth;
/* struct evp_mac_impl_st is defined by the implementation */
typedef struct evp_mac_impl_st EVP_MAC_IMPL;
struct evp_mac_st {
int type;
EVP_MAC_IMPL *(*new) (void);
int (*copy) (EVP_MAC_IMPL *macdst, EVP_MAC_IMPL *macsrc);
void (*free) (EVP_MAC_IMPL *macctx);
size_t (*size) (EVP_MAC_IMPL *macctx);
int (*init) (EVP_MAC_IMPL *macctx);
int (*update) (EVP_MAC_IMPL *macctx, const unsigned char *data,
size_t datalen);
int (*final) (EVP_MAC_IMPL *macctx, unsigned char *out);
int (*ctrl) (EVP_MAC_IMPL *macctx, int cmd, va_list args);
int (*ctrl_str) (EVP_MAC_IMPL *macctx, const char *type, const char *value);
};
extern const EVP_MAC blake2b_mac_meth;
extern const EVP_MAC blake2s_mac_meth;
extern const EVP_MAC cmac_meth;
extern const EVP_MAC gmac_meth;
extern const EVP_MAC hmac_meth;
extern const EVP_MAC kmac128_meth;
extern const EVP_MAC kmac256_meth;
extern const EVP_MAC siphash_meth;
extern const EVP_MAC poly1305_meth;
/* Internal keccak algorithms used for KMAC */
const EVP_MD *evp_keccak_kmac128(void);
const EVP_MD *evp_keccak_kmac256(void);
/*
* This function is internal for now, but can be made external when needed.
* The documentation would read:
*
* EVP_add_mac() adds the MAC implementation C<mac> to the internal
* object database.
*/
int EVP_add_mac(const EVP_MAC *mac);
int EVP_add_kdf(const EVP_KDF *kdf);
/* struct evp_kdf_impl_st is defined by the implementation */
typedef struct evp_kdf_impl_st EVP_KDF_IMPL;
struct evp_kdf_st {
int type;
EVP_KDF_IMPL *(*new) (void);
void (*free) (EVP_KDF_IMPL *impl);
void (*reset) (EVP_KDF_IMPL *impl);
int (*ctrl) (EVP_KDF_IMPL *impl, int cmd, va_list args);
int (*ctrl_str) (EVP_KDF_IMPL *impl, const char *type, const char *value);
size_t (*size) (EVP_KDF_IMPL *impl);
int (*derive) (EVP_KDF_IMPL *impl, unsigned char *key, size_t keylen);
};
extern const EVP_KDF pbkdf2_kdf_meth;
extern const EVP_KDF scrypt_kdf_meth;
extern const EVP_KDF tls1_prf_kdf_meth;
extern const EVP_KDF hkdf_kdf_meth;
extern const EVP_KDF sshkdf_kdf_meth;
extern const EVP_KDF ss_kdf_meth;
extern const EVP_KDF x963_kdf_meth;
struct evp_md_st {
/* nid */
int type;
/* Legacy structure members */
/* TODO(3.0): Remove these */
int pkey_type;
int md_size;
unsigned long flags;
int (*init) (EVP_MD_CTX *ctx);
int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
int (*final) (EVP_MD_CTX *ctx, unsigned char *md);
int (*copy) (EVP_MD_CTX *to, const EVP_MD_CTX *from);
int (*cleanup) (EVP_MD_CTX *ctx);
int block_size;
int ctx_size; /* how big does the ctx->md_data need to be */
/* control function */
int (*md_ctrl) (EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
/* New structure members */
/* TODO(3.0): Remove above comment when legacy has gone */
OSSL_PROVIDER *prov;
CRYPTO_REF_COUNT refcnt;
CRYPTO_RWLOCK *lock;
OSSL_OP_digest_newctx_fn *newctx;
OSSL_OP_digest_init_fn *dinit;
OSSL_OP_digest_update_fn *dupdate;
OSSL_OP_digest_final_fn *dfinal;
OSSL_OP_digest_digest_fn *digest;
OSSL_OP_digest_freectx_fn *freectx;
OSSL_OP_digest_dupctx_fn *dupctx;
OSSL_OP_digest_size_fn *size;
OSSL_OP_digest_block_size_fn *dblock_size;
} /* EVP_MD */ ;
struct evp_cipher_st {
int nid;
int block_size;
/* Default value for variable length ciphers */
int key_len;
int iv_len;
/* Legacy structure members */
/* TODO(3.0): Remove these */
/* Various flags */
unsigned long flags;
/* init key */
int (*init) (EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc);
/* encrypt/decrypt data */
int (*do_cipher) (EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl);
/* cleanup ctx */
int (*cleanup) (EVP_CIPHER_CTX *);
/* how big ctx->cipher_data needs to be */
int ctx_size;
/* Populate a ASN1_TYPE with parameters */
int (*set_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
/* Get parameters from a ASN1_TYPE */
int (*get_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
/* Miscellaneous operations */
int (*ctrl) (EVP_CIPHER_CTX *, int type, int arg, void *ptr);
/* Application data */
void *app_data;
/* New structure members */
/* TODO(3.0): Remove above comment when legacy has gone */
OSSL_PROVIDER *prov;
CRYPTO_REF_COUNT refcnt;
CRYPTO_RWLOCK *lock;
OSSL_OP_cipher_newctx_fn *newctx;
OSSL_OP_cipher_encrypt_init_fn *einit;
OSSL_OP_cipher_decrypt_init_fn *dinit;
OSSL_OP_cipher_update_fn *cupdate;
OSSL_OP_cipher_final_fn *cfinal;
OSSL_OP_cipher_cipher_fn *ccipher;
OSSL_OP_cipher_freectx_fn *freectx;
OSSL_OP_cipher_dupctx_fn *dupctx;
OSSL_OP_cipher_key_length_fn *key_length;
OSSL_OP_cipher_iv_length_fn *iv_length;
OSSL_OP_cipher_block_size_fn *blocksize;
OSSL_OP_cipher_get_params_fn *get_params;
OSSL_OP_cipher_ctx_get_params_fn *ctx_get_params;
OSSL_OP_cipher_ctx_set_params_fn *ctx_set_params;
} /* EVP_CIPHER */ ;
/* Macros to code block cipher wrappers */
/* Wrapper functions for each cipher mode */
#define EVP_C_DATA(kstruct, ctx) \
((kstruct *)EVP_CIPHER_CTX_get_cipher_data(ctx))
#define BLOCK_CIPHER_ecb_loop() \
size_t i, bl; \
bl = EVP_CIPHER_CTX_cipher(ctx)->block_size; \
if (inl < bl) return 1;\
inl -= bl; \
for (i=0; i <= inl; i+=bl)
#define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
{\
BLOCK_CIPHER_ecb_loop() \
cprefix##_ecb_encrypt(in + i, out + i, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_encrypting(ctx)); \
return 1;\
}
#define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))
#define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
{\
while(inl>=EVP_MAXCHUNK) {\
int num = EVP_CIPHER_CTX_num(ctx);\
cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
EVP_CIPHER_CTX_set_num(ctx, num);\
inl-=EVP_MAXCHUNK;\
in +=EVP_MAXCHUNK;\
out+=EVP_MAXCHUNK;\
}\
if (inl) {\
int num = EVP_CIPHER_CTX_num(ctx);\
cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
EVP_CIPHER_CTX_set_num(ctx, num);\
}\
return 1;\
}
#define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
{\
while(inl>=EVP_MAXCHUNK) \
{\
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));\
inl-=EVP_MAXCHUNK;\
in +=EVP_MAXCHUNK;\
out+=EVP_MAXCHUNK;\
}\
if (inl)\
cprefix##_cbc_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
return 1;\
}
#define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
{\
size_t chunk = EVP_MAXCHUNK;\
if (cbits == 1) chunk >>= 3;\
if (inl < chunk) chunk = inl;\
while (inl && inl >= chunk)\
{\
int num = EVP_CIPHER_CTX_num(ctx);\
cprefix##_cfb##cbits##_encrypt(in, out, (long) \
((cbits == 1) \
&& !EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS) \
? chunk*8 : chunk), \
&EVP_C_DATA(kstruct, ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx),\
&num, EVP_CIPHER_CTX_encrypting(ctx));\
EVP_CIPHER_CTX_set_num(ctx, num);\
inl -= chunk;\
in += chunk;\
out += chunk;\
if (inl < chunk) chunk = inl;\
}\
return 1;\
}
#define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
#define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
key_len, iv_len, flags, init_key, cleanup, \
set_asn1, get_asn1, ctrl) \
static const EVP_CIPHER cname##_##mode = { \
nid##_##nmode, block_size, key_len, iv_len, \
flags | EVP_CIPH_##MODE##_MODE, \
init_key, \
cname##_##mode##_cipher, \
cleanup, \
sizeof(kstruct), \
set_asn1, get_asn1,\
ctrl, \
NULL \
}; \
const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
#define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
iv_len, flags, init_key, cleanup, set_asn1, \
get_asn1, ctrl) \
BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
#define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
iv_len, cbits, flags, init_key, cleanup, \
set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
key_len, iv_len, flags, init_key, cleanup, set_asn1, \
get_asn1, ctrl)
#define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
iv_len, cbits, flags, init_key, cleanup, \
set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
key_len, iv_len, flags, init_key, cleanup, set_asn1, \
get_asn1, ctrl)
#define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
flags, init_key, cleanup, set_asn1, \
get_asn1, ctrl) \
BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
#define BLOCK_CIPHER_defs(cname, kstruct, \
nid, block_size, key_len, iv_len, cbits, flags, \
init_key, cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
init_key, cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
init_key, cleanup, set_asn1, get_asn1, ctrl)
/*-
#define BLOCK_CIPHER_defs(cname, kstruct, \
nid, block_size, key_len, iv_len, flags,\
init_key, cleanup, set_asn1, get_asn1, ctrl)\
static const EVP_CIPHER cname##_cbc = {\
nid##_cbc, block_size, key_len, iv_len, \
flags | EVP_CIPH_CBC_MODE,\
init_key,\
cname##_cbc_cipher,\
cleanup,\
sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
set_asn1, get_asn1,\
ctrl, \
NULL \
};\
const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
static const EVP_CIPHER cname##_cfb = {\
nid##_cfb64, 1, key_len, iv_len, \
flags | EVP_CIPH_CFB_MODE,\
init_key,\
cname##_cfb_cipher,\
cleanup,\
sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
set_asn1, get_asn1,\
ctrl,\
NULL \
};\
const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
static const EVP_CIPHER cname##_ofb = {\
nid##_ofb64, 1, key_len, iv_len, \
flags | EVP_CIPH_OFB_MODE,\
init_key,\
cname##_ofb_cipher,\
cleanup,\
sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
set_asn1, get_asn1,\
ctrl,\
NULL \
};\
const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
static const EVP_CIPHER cname##_ecb = {\
nid##_ecb, block_size, key_len, iv_len, \
flags | EVP_CIPH_ECB_MODE,\
init_key,\
cname##_ecb_cipher,\
cleanup,\
sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
set_asn1, get_asn1,\
ctrl,\
NULL \
};\
const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
*/
#define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \
block_size, key_len, iv_len, cbits, \
flags, init_key, \
cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \
cbits, flags, init_key, cleanup, set_asn1, \
get_asn1, ctrl)
#define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \
BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \
BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \
NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \
(fl)|EVP_CIPH_FLAG_DEFAULT_ASN1, \
cipher##_init_key, NULL, NULL, NULL, NULL)
# ifndef OPENSSL_NO_EC
#define X25519_KEYLEN 32
#define X448_KEYLEN 56
#define ED448_KEYLEN 57
#define MAX_KEYLEN ED448_KEYLEN
typedef struct {
unsigned char pubkey[MAX_KEYLEN];
unsigned char *privkey;
} ECX_KEY;
#endif
/*
* Type needs to be a bit field Sub-type needs to be for variations on the
* method, as in, can it do arbitrary encryption....
*/
struct evp_pkey_st {
int type;
int save_type;
CRYPTO_REF_COUNT references;
const EVP_PKEY_ASN1_METHOD *ameth;
ENGINE *engine;
ENGINE *pmeth_engine; /* If not NULL public key ENGINE to use */
union {
void *ptr;
# ifndef OPENSSL_NO_RSA
struct rsa_st *rsa; /* RSA */
# endif
# ifndef OPENSSL_NO_DSA
struct dsa_st *dsa; /* DSA */
# endif
# ifndef OPENSSL_NO_DH
struct dh_st *dh; /* DH */
# endif
# ifndef OPENSSL_NO_EC
struct ec_key_st *ec; /* ECC */
ECX_KEY *ecx; /* X25519, X448, Ed25519, Ed448 */
# endif
} pkey;
int save_parameters;
STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
CRYPTO_RWLOCK *lock;
} /* EVP_PKEY */ ;
void openssl_add_all_ciphers_int(void);
void openssl_add_all_digests_int(void);
void openssl_add_all_macs_int(void);
void openssl_add_all_kdfs_int(void);
void evp_cleanup_int(void);
void evp_app_cleanup_int(void);
/* Pulling defines out of C source files */
#define EVP_RC4_KEY_SIZE 16
#ifndef TLS1_1_VERSION
# define TLS1_1_VERSION 0x0302
#endif
void evp_encode_ctx_set_flags(EVP_ENCODE_CTX *ctx, unsigned int flags);
/* EVP_ENCODE_CTX flags */
/* Don't generate new lines when encoding */
#define EVP_ENCODE_CTX_NO_NEWLINES 1
/* Use the SRP base64 alphabet instead of the standard one */
#define EVP_ENCODE_CTX_USE_SRP_ALPHABET 2
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