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363b1e5dae
openssl/include/crypto/evp.h
Dr. Matthias St. Pierre 363b1e5dae Make the naming scheme for dispatched functions more consistent 
The new naming scheme consistently usese the `OSSL_FUNC_` prefix for all
functions which are dispatched between the core and providers.

This change includes in particular all up- and downcalls, i.e., the
dispatched functions passed from core to provider and vice versa.

- OSSL_core_  -> OSSL_FUNC_core_
- OSSL_provider_ -> OSSL_FUNC_core_

For operations and their function dispatch tables, the following convention
is used:

  Type                 | Name (evp_generic_fetch(3))       |
  ---------------------|-----------------------------------|
  operation            | OSSL_OP_FOO                       |
  function id          | OSSL_FUNC_FOO_FUNCTION_NAME       |
  function "name"      | OSSL_FUNC_foo_function_name       |
  function typedef     | OSSL_FUNC_foo_function_name_fn    |
  function ptr getter  | OSSL_FUNC_foo_function_name       |

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12222)
2020-06-24 22:01:22 +02:00

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/*
* Copyright 2015-2020 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_dispatch.h>
#include "internal/refcount.h"
#include "crypto/ecx.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 {
/* Actual operation */
int operation;
/*
* Library context, property query, keytype and keymgmt associated with
* this context
*/
OPENSSL_CTX *libctx;
const char *propquery;
const char *keytype;
EVP_KEYMGMT *keymgmt;
union {
struct {
void *genctx;
} keymgmt;
struct {
EVP_KEYEXCH *exchange;
void *exchprovctx;
} kex;
struct {
EVP_SIGNATURE *signature;
void *sigprovctx;
} sig;
struct {
EVP_ASYM_CIPHER *cipher;
void *ciphprovctx;
} ciph;
} op;
/* Application specific data, usually used by the callback */
void *app_data;
/* Keygen callback */
EVP_PKEY_gen_cb *pkey_gencb;
/* implementation specific keygen data */
int *keygen_info;
int keygen_info_count;
/* Legacy fields below */
/* 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;
/* Algorithm specific data */
void *data;
/* Indicator if digest_custom needs to be called */
unsigned int flag_call_digest_custom:1;
} /* 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);
const EVP_PKEY_METHOD *cmac_pkey_method(void);
const EVP_PKEY_METHOD *dh_pkey_method(void);
const EVP_PKEY_METHOD *dhx_pkey_method(void);
const EVP_PKEY_METHOD *dsa_pkey_method(void);
const EVP_PKEY_METHOD *ec_pkey_method(void);
const EVP_PKEY_METHOD *sm2_pkey_method(void);
const EVP_PKEY_METHOD *ecx25519_pkey_method(void);
const EVP_PKEY_METHOD *ecx448_pkey_method(void);
const EVP_PKEY_METHOD *ed25519_pkey_method(void);
const EVP_PKEY_METHOD *ed448_pkey_method(void);
const EVP_PKEY_METHOD *hmac_pkey_method(void);
const EVP_PKEY_METHOD *rsa_pkey_method(void);
const EVP_PKEY_METHOD *rsa_pss_pkey_method(void);
const EVP_PKEY_METHOD *scrypt_pkey_method(void);
const EVP_PKEY_METHOD *tls1_prf_pkey_method(void);
const EVP_PKEY_METHOD *hkdf_pkey_method(void);
const EVP_PKEY_METHOD *poly1305_pkey_method(void);
const EVP_PKEY_METHOD *siphash_pkey_method(void);
struct evp_mac_st {
OSSL_PROVIDER *prov;
int name_id;
CRYPTO_REF_COUNT refcnt;
CRYPTO_RWLOCK *lock;
OSSL_FUNC_mac_newctx_fn *newctx;
OSSL_FUNC_mac_dupctx_fn *dupctx;
OSSL_FUNC_mac_freectx_fn *freectx;
OSSL_FUNC_mac_size_fn *size;
OSSL_FUNC_mac_init_fn *init;
OSSL_FUNC_mac_update_fn *update;
OSSL_FUNC_mac_final_fn *final;
OSSL_FUNC_mac_gettable_params_fn *gettable_params;
OSSL_FUNC_mac_gettable_ctx_params_fn *gettable_ctx_params;
OSSL_FUNC_mac_settable_ctx_params_fn *settable_ctx_params;
OSSL_FUNC_mac_get_params_fn *get_params;
OSSL_FUNC_mac_get_ctx_params_fn *get_ctx_params;
OSSL_FUNC_mac_set_ctx_params_fn *set_ctx_params;
};
struct evp_kdf_st {
OSSL_PROVIDER *prov;
int name_id;
CRYPTO_REF_COUNT refcnt;
CRYPTO_RWLOCK *lock;
OSSL_FUNC_kdf_newctx_fn *newctx;
OSSL_FUNC_kdf_dupctx_fn *dupctx;
OSSL_FUNC_kdf_freectx_fn *freectx;
OSSL_FUNC_kdf_reset_fn *reset;
OSSL_FUNC_kdf_derive_fn *derive;
OSSL_FUNC_kdf_gettable_params_fn *gettable_params;
OSSL_FUNC_kdf_gettable_ctx_params_fn *gettable_ctx_params;
OSSL_FUNC_kdf_settable_ctx_params_fn *settable_ctx_params;
OSSL_FUNC_kdf_get_params_fn *get_params;
OSSL_FUNC_kdf_get_ctx_params_fn *get_ctx_params;
OSSL_FUNC_kdf_set_ctx_params_fn *set_ctx_params;
};
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 */
int name_id;
OSSL_PROVIDER *prov;
CRYPTO_REF_COUNT refcnt;
CRYPTO_RWLOCK *lock;
OSSL_FUNC_digest_newctx_fn *newctx;
OSSL_FUNC_digest_init_fn *dinit;
OSSL_FUNC_digest_update_fn *dupdate;
OSSL_FUNC_digest_final_fn *dfinal;
OSSL_FUNC_digest_digest_fn *digest;
OSSL_FUNC_digest_freectx_fn *freectx;
OSSL_FUNC_digest_dupctx_fn *dupctx;
OSSL_FUNC_digest_get_params_fn *get_params;
OSSL_FUNC_digest_set_ctx_params_fn *set_ctx_params;
OSSL_FUNC_digest_get_ctx_params_fn *get_ctx_params;
OSSL_FUNC_digest_gettable_params_fn *gettable_params;
OSSL_FUNC_digest_settable_ctx_params_fn *settable_ctx_params;
OSSL_FUNC_digest_gettable_ctx_params_fn *gettable_ctx_params;
} /* 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 */
int name_id;
OSSL_PROVIDER *prov;
CRYPTO_REF_COUNT refcnt;
CRYPTO_RWLOCK *lock;
OSSL_FUNC_cipher_newctx_fn *newctx;
OSSL_FUNC_cipher_encrypt_init_fn *einit;
OSSL_FUNC_cipher_decrypt_init_fn *dinit;
OSSL_FUNC_cipher_update_fn *cupdate;
OSSL_FUNC_cipher_final_fn *cfinal;
OSSL_FUNC_cipher_cipher_fn *ccipher;
OSSL_FUNC_cipher_freectx_fn *freectx;
OSSL_FUNC_cipher_dupctx_fn *dupctx;
OSSL_FUNC_cipher_get_params_fn *get_params;
OSSL_FUNC_cipher_get_ctx_params_fn *get_ctx_params;
OSSL_FUNC_cipher_set_ctx_params_fn *set_ctx_params;
OSSL_FUNC_cipher_gettable_params_fn *gettable_params;
OSSL_FUNC_cipher_gettable_ctx_params_fn *gettable_ctx_params;
OSSL_FUNC_cipher_settable_ctx_params_fn *settable_ctx_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)
/*
* An EVP_PKEY can have the following states:
*
* untyped & empty:
*
* type == EVP_PKEY_NONE && keymgmt == NULL
*
* typed & empty:
*
* (type != EVP_PKEY_NONE && pkey.ptr == NULL) ## legacy (libcrypto only)
* || (keymgmt != NULL && keydata == NULL) ## provider side
*
* fully assigned:
*
* (type != EVP_PKEY_NONE && pkey.ptr != NULL) ## legacy (libcrypto only)
* || (keymgmt != NULL && keydata != NULL) ## provider side
*
* The easiest way to detect a legacy key is:
*
* keymgmt == NULL && type != EVP_PKEY_NONE
*
* The easiest way to detect a provider side key is:
*
* keymgmt != NULL
*/
#define evp_pkey_is_blank(pk) \
((pk)->type == EVP_PKEY_NONE && (pk)->keymgmt == NULL)
#define evp_pkey_is_typed(pk) \
((pk)->type != EVP_PKEY_NONE || (pk)->keymgmt != NULL)
#define evp_pkey_is_assigned(pk) \
((pk)->pkey.ptr != NULL || (pk)->keydata != NULL)
#define evp_pkey_is_legacy(pk) \
((pk)->type != EVP_PKEY_NONE && (pk)->keymgmt == NULL)
#define evp_pkey_is_provided(pk) \
((pk)->keymgmt != NULL)
struct evp_pkey_st {
/* == Legacy attributes == */
int type;
int save_type;
# ifndef FIPS_MODULE
/*
* Legacy key "origin" is composed of a pointer to an EVP_PKEY_ASN1_METHOD,
* a pointer to a low level key and possibly a pointer to an engine.
*/
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;
# endif
/* == Common attributes == */
CRYPTO_REF_COUNT references;
CRYPTO_RWLOCK *lock;
STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
int save_parameters;
#ifndef FIPS_MODULE
CRYPTO_EX_DATA ex_data;
#endif
/* == Provider attributes == */
/*
* Provider keydata "origin" is composed of a pointer to an EVP_KEYMGMT
* and a pointer to the provider side key data. This is never used at
* the same time as the legacy key data above.
*/
EVP_KEYMGMT *keymgmt;
void *keydata;
/*
* If any libcrypto code does anything that may modify the keydata
* contents, this dirty counter must be incremented.
*/
size_t dirty_cnt;
/*
* To support transparent execution of operation in backends other
* than the "origin" key, we support transparent export/import to
* those providers, and maintain a cache of the imported keydata,
* so we don't need to redo the export/import every time we perform
* the same operation in that same provider.
* This requires that the "origin" backend (whether it's a legacy or a
* provider "origin") implements exports, and that the target provider
* has an EVP_KEYMGMT that implements import.
*
* The cache limit is set at 10 different providers using the same
* "origin". It's probably over the top, but is preferable to too
* few.
*/
struct {
EVP_KEYMGMT *keymgmt;
void *keydata;
} operation_cache[10];
/*
* We keep a copy of that "origin"'s dirty count, so we know if the
* operation cache needs flushing.
*/
size_t dirty_cnt_copy;
/* Cache of key object information */
struct {
int bits;
int security_bits;
int size;
} cache;
} /* EVP_PKEY */ ;
#define EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) \
((ctx)->operation == EVP_PKEY_OP_SIGN \
|| (ctx)->operation == EVP_PKEY_OP_SIGNCTX \
|| (ctx)->operation == EVP_PKEY_OP_VERIFY \
|| (ctx)->operation == EVP_PKEY_OP_VERIFYCTX \
|| (ctx)->operation == EVP_PKEY_OP_VERIFYRECOVER)
#define EVP_PKEY_CTX_IS_DERIVE_OP(ctx) \
((ctx)->operation == EVP_PKEY_OP_DERIVE)
#define EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx) \
((ctx)->operation == EVP_PKEY_OP_ENCRYPT \
|| (ctx)->operation == EVP_PKEY_OP_DECRYPT)
#define EVP_PKEY_CTX_IS_GEN_OP(ctx) \
((ctx)->operation == EVP_PKEY_OP_PARAMGEN \
|| (ctx)->operation == EVP_PKEY_OP_KEYGEN)
void openssl_add_all_ciphers_int(void);
void openssl_add_all_digests_int(void);
void evp_cleanup_int(void);
void evp_app_cleanup_int(void);
void *evp_pkey_export_to_provider(EVP_PKEY *pk, OPENSSL_CTX *libctx,
EVP_KEYMGMT **keymgmt,
const char *propquery);
#ifndef FIPS_MODULE
int evp_pkey_downgrade(EVP_PKEY *pk);
void evp_pkey_free_legacy(EVP_PKEY *x);
#endif
/*
* KEYMGMT utility functions
*/
void *evp_keymgmt_util_export_to_provider(EVP_PKEY *pk, EVP_KEYMGMT *keymgmt);
size_t evp_keymgmt_util_find_operation_cache_index(EVP_PKEY *pk,
EVP_KEYMGMT *keymgmt);
void evp_keymgmt_util_clear_operation_cache(EVP_PKEY *pk);
int evp_keymgmt_util_cache_keydata(EVP_PKEY *pk, size_t index,
EVP_KEYMGMT *keymgmt, void *keydata);
void evp_keymgmt_util_cache_keyinfo(EVP_PKEY *pk);
void *evp_keymgmt_util_fromdata(EVP_PKEY *target, EVP_KEYMGMT *keymgmt,
int selection, const OSSL_PARAM params[]);
int evp_keymgmt_util_has(EVP_PKEY *pk, int selection);
int evp_keymgmt_util_match(EVP_PKEY *pk1, EVP_PKEY *pk2, int selection);
int evp_keymgmt_util_copy(EVP_PKEY *to, EVP_PKEY *from, int selection);
void *evp_keymgmt_util_gen(EVP_PKEY *target, EVP_KEYMGMT *keymgmt,
void *genctx, OSSL_CALLBACK *cb, void *cbarg);
int evp_keymgmt_util_get_deflt_digest_name(EVP_KEYMGMT *keymgmt,
void *keydata,
char *mdname, size_t mdname_sz);
/*
* KEYMGMT provider interface functions
*/
void *evp_keymgmt_newdata(const EVP_KEYMGMT *keymgmt);
void evp_keymgmt_freedata(const EVP_KEYMGMT *keymgmt, void *keyddata);
int evp_keymgmt_get_params(const EVP_KEYMGMT *keymgmt,
void *keydata, OSSL_PARAM params[]);
const OSSL_PARAM *evp_keymgmt_gettable_params(const EVP_KEYMGMT *keymgmt);
int evp_keymgmt_set_params(const EVP_KEYMGMT *keymgmt,
void *keydata, const OSSL_PARAM params[]);
const OSSL_PARAM *evp_keymgmt_settable_params(const EVP_KEYMGMT *keymgmt);
void *evp_keymgmt_gen_init(const EVP_KEYMGMT *keymgmt, int selection);
int evp_keymgmt_gen_set_template(const EVP_KEYMGMT *keymgmt, void *genctx,
void *template);
int evp_keymgmt_gen_set_params(const EVP_KEYMGMT *keymgmt, void *genctx,
const OSSL_PARAM params[]);
const OSSL_PARAM *
evp_keymgmt_gen_settable_params(const EVP_KEYMGMT *keymgmt);
void *evp_keymgmt_gen(const EVP_KEYMGMT *keymgmt, void *genctx,
OSSL_CALLBACK *cb, void *cbarg);
void evp_keymgmt_gen_cleanup(const EVP_KEYMGMT *keymgmt, void *genctx);
int evp_keymgmt_has(const EVP_KEYMGMT *keymgmt, void *keyddata, int selection);
int evp_keymgmt_validate(const EVP_KEYMGMT *keymgmt, void *keydata,
int selection);
int evp_keymgmt_match(const EVP_KEYMGMT *keymgmt,
const void *keydata1, const void *keydata2,
int selection);
int evp_keymgmt_import(const EVP_KEYMGMT *keymgmt, void *keydata,
int selection, const OSSL_PARAM params[]);
const OSSL_PARAM *evp_keymgmt_import_types(const EVP_KEYMGMT *keymgmt,
int selection);
int evp_keymgmt_export(const EVP_KEYMGMT *keymgmt, void *keydata,
int selection, OSSL_CALLBACK *param_cb, void *cbarg);
const OSSL_PARAM *evp_keymgmt_export_types(const EVP_KEYMGMT *keymgmt,
int selection);
int evp_keymgmt_copy(const EVP_KEYMGMT *keymgmt,
void *keydata_to, const void *keydata_from,
int selection);
/* 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
const EVP_CIPHER *evp_get_cipherbyname_ex(OPENSSL_CTX *libctx, const char *name);
const EVP_MD *evp_get_digestbyname_ex(OPENSSL_CTX *libctx, const char *name);
#ifndef FIPS_MODULE
/*
* Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params().
*
* Return 1 on success, 0 or negative for errors.
*
* In particular they return -2 if any of the params is not supported.
*
* They are not available in FIPS_MODULE as they depend on
* - EVP_PKEY_CTX_{get,set}_params()
* - EVP_PKEY_CTX_{gettable,settable}_params()
*
*/
int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params);
int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params);
EVP_PKEY *evp_pkcs82pkey_int(const PKCS8_PRIV_KEY_INFO *p8, OPENSSL_CTX *libctx,
const char *propq);
#endif /* !defined(FIPS_MODULE) */
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