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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.] */
#ifndef OPENSSL_HEADER_EVP_INTERNAL_H
#define OPENSSL_HEADER_EVP_INTERNAL_H
#include <openssl/base.h>
#if defined(__cplusplus)
extern "C" {
#endif
/* These values are flags for EVP_PKEY_ASN1_METHOD.flags. */
#define ASN1_PKEY_ALIAS 0x1
#define ASN1_PKEY_DYNAMIC 0x2
#define ASN1_PKEY_SIGPARAM_NULL 0x4
struct evp_pkey_asn1_method_st {
int pkey_id;
int pkey_base_id;
unsigned long pkey_flags;
char *pem_str;
char *info;
int (*pub_decode)(EVP_PKEY *pk, X509_PUBKEY *pub);
int (*pub_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk);
int (*pub_cmp)(const EVP_PKEY *a, const EVP_PKEY *b);
int (*pub_print)(BIO *out, const EVP_PKEY *pkey, int indent, ASN1_PCTX *pctx);
int (*priv_decode)(EVP_PKEY *pk, PKCS8_PRIV_KEY_INFO *p8inf);
int (*priv_encode)(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk);
int (*priv_print)(BIO *out, const EVP_PKEY *pkey, int indent,
ASN1_PCTX *pctx);
/* pkey_opaque returns 1 if the |pk| is opaque. Opaque keys are backed by
* custom implementations which do not expose key material and parameters.*/
int (*pkey_opaque)(const EVP_PKEY *pk);
int (*pkey_size)(const EVP_PKEY *pk);
int (*pkey_bits)(const EVP_PKEY *pk);
int (*param_decode)(EVP_PKEY *pkey, const unsigned char **pder, int derlen);
int (*param_encode)(const EVP_PKEY *pkey, unsigned char **pder);
int (*param_missing)(const EVP_PKEY *pk);
int (*param_copy)(EVP_PKEY *to, const EVP_PKEY *from);
int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b);
int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent,
ASN1_PCTX *pctx);
int (*sig_print)(BIO *out, const X509_ALGOR *sigalg, const ASN1_STRING *sig,
int indent, ASN1_PCTX *pctx);
void (*pkey_free)(EVP_PKEY *pkey);
int (*pkey_ctrl)(EVP_PKEY *pkey, int op, long arg1, void *arg2);
/* Legacy functions for old PEM */
int (*old_priv_decode)(EVP_PKEY *pkey, const unsigned char **pder,
int derlen);
int (*old_priv_encode)(const EVP_PKEY *pkey, unsigned char **pder);
/* Custom ASN1 signature verification */
int (*item_verify)(EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn,
X509_ALGOR *a, ASN1_BIT_STRING *sig, EVP_PKEY *pkey);
int (*item_sign)(EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn,
X509_ALGOR *alg1, X509_ALGOR *alg2, ASN1_BIT_STRING *sig);
} /* EVP_PKEY_ASN1_METHOD */;
typedef int EVP_PKEY_gen_cb(EVP_PKEY_CTX *ctx);
#define EVP_PKEY_OP_UNDEFINED 0
#define EVP_PKEY_OP_PARAMGEN (1 << 1)
#define EVP_PKEY_OP_KEYGEN (1 << 2)
#define EVP_PKEY_OP_SIGN (1 << 3)
#define EVP_PKEY_OP_VERIFY (1 << 4)
#define EVP_PKEY_OP_VERIFYRECOVER (1 << 5)
#define EVP_PKEY_OP_SIGNCTX (1 << 6)
#define EVP_PKEY_OP_VERIFYCTX (1 << 7)
#define EVP_PKEY_OP_ENCRYPT (1 << 8)
#define EVP_PKEY_OP_DECRYPT (1 << 9)
#define EVP_PKEY_OP_DERIVE (1 << 10)
#define EVP_PKEY_OP_TYPE_SIG \
(EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY | EVP_PKEY_OP_VERIFYRECOVER | \
EVP_PKEY_OP_SIGNCTX | EVP_PKEY_OP_VERIFYCTX)
#define EVP_PKEY_OP_TYPE_CRYPT (EVP_PKEY_OP_ENCRYPT | EVP_PKEY_OP_DECRYPT)
#define EVP_PKEY_OP_TYPE_NOGEN \
(EVP_PKEY_OP_SIG | EVP_PKEY_OP_CRYPT | EVP_PKEY_OP_DERIVE)
#define EVP_PKEY_OP_TYPE_GEN (EVP_PKEY_OP_PARAMGEN | EVP_PKEY_OP_KEYGEN)
#define EVP_PKEY_CTRL_MD 1
#define EVP_PKEY_CTRL_GET_MD 2
#define EVP_PKEY_CTRL_RSA_PADDING (EVP_PKEY_ALG_CTRL + 1)
#define EVP_PKEY_CTRL_GET_RSA_PADDING (EVP_PKEY_ALG_CTRL + 2)
#define EVP_PKEY_CTRL_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 3)
#define EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 4)
#define EVP_PKEY_CTRL_RSA_KEYGEN_BITS (EVP_PKEY_ALG_CTRL + 5)
#define EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP (EVP_PKEY_ALG_CTRL + 6)
#define EVP_PKEY_CTRL_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 7)
#define EVP_PKEY_CTRL_GET_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 8)
#define EVP_PKEY_CTRL_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 9)
#define EVP_PKEY_CTRL_GET_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 10)
#define EVP_PKEY_CTRL_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 11)
#define EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 12)
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;
/* operation contains one of the |EVP_PKEY_OP_*| values. */
int operation;
/* Algorithm specific data */
void *data;
/* Application specific data */
void *app_data;
} /* EVP_PKEY_CTX */;
struct evp_pkey_method_st {
int pkey_id;
int flags;
int (*init)(EVP_PKEY_CTX *ctx);
int (*copy)(EVP_PKEY_CTX *dst, 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 (*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);
} /* EVP_PKEY_METHOD */;
#if defined(__cplusplus)
} /* extern C */
#endif
#endif /* OPENSSL_HEADER_EVP_INTERNAL_H */