mirror of
https://github.com/QuasarApp/openssl.git
synced 2025-05-13 18:09:39 +00:00
8a99cb29d1
This change adds the option to calculate (EC)DSA nonces by hashing the message and private key along with entropy to avoid leaking the private key if the PRNG fails.
117 lines
4.1 KiB
C
117 lines
4.1 KiB
C
/* crypto/ecdsa/ecs_locl.h */
|
|
/*
|
|
* Written by Nils Larsch for the OpenSSL project
|
|
*/
|
|
/* ====================================================================
|
|
* Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved.
|
|
*
|
|
* 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 above 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 acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
|
|
*
|
|
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
|
|
* endorse or promote products derived from this software without
|
|
* prior written permission. For written permission, please contact
|
|
* licensing@OpenSSL.org.
|
|
*
|
|
* 5. Products derived from this software may not be called "OpenSSL"
|
|
* nor may "OpenSSL" appear in their names without prior written
|
|
* permission of the OpenSSL Project.
|
|
*
|
|
* 6. Redistributions of any form whatsoever must retain the following
|
|
* acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
|
|
* EXPRESSED 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 OpenSSL PROJECT OR
|
|
* ITS 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.
|
|
* ====================================================================
|
|
*
|
|
* This product includes cryptographic software written by Eric Young
|
|
* (eay@cryptsoft.com). This product includes software written by Tim
|
|
* Hudson (tjh@cryptsoft.com).
|
|
*
|
|
*/
|
|
|
|
#ifndef HEADER_ECS_LOCL_H
|
|
#define HEADER_ECS_LOCL_H
|
|
|
|
#include <openssl/ecdsa.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
struct ecdsa_method
|
|
{
|
|
const char *name;
|
|
ECDSA_SIG *(*ecdsa_do_sign)(const unsigned char *dgst, int dgst_len,
|
|
const BIGNUM *inv, const BIGNUM *rp, EC_KEY *eckey);
|
|
int (*ecdsa_sign_setup)(EC_KEY *eckey, BN_CTX *ctx,
|
|
BIGNUM **kinv, BIGNUM **r,
|
|
const unsigned char *dgst, int dlen);
|
|
int (*ecdsa_do_verify)(const unsigned char *dgst, int dgst_len,
|
|
const ECDSA_SIG *sig, EC_KEY *eckey);
|
|
#if 0
|
|
int (*init)(EC_KEY *eckey);
|
|
int (*finish)(EC_KEY *eckey);
|
|
#endif
|
|
int flags;
|
|
char *app_data;
|
|
};
|
|
|
|
/* If this flag is set the ECDSA method is FIPS compliant and can be used
|
|
* in FIPS mode. This is set in the validated module method. If an
|
|
* application sets this flag in its own methods it is its responsibility
|
|
* to ensure the result is compliant.
|
|
*/
|
|
|
|
#define ECDSA_FLAG_FIPS_METHOD 0x1
|
|
|
|
typedef struct ecdsa_data_st {
|
|
/* EC_KEY_METH_DATA part */
|
|
int (*init)(EC_KEY *);
|
|
/* method (ECDSA) specific part */
|
|
ENGINE *engine;
|
|
int flags;
|
|
const ECDSA_METHOD *meth;
|
|
CRYPTO_EX_DATA ex_data;
|
|
} ECDSA_DATA;
|
|
|
|
/** ecdsa_check
|
|
* checks whether ECKEY->meth_data is a pointer to a ECDSA_DATA structure
|
|
* and if not it removes the old meth_data and creates a ECDSA_DATA structure.
|
|
* \param eckey pointer to a EC_KEY object
|
|
* \return pointer to a ECDSA_DATA structure
|
|
*/
|
|
ECDSA_DATA *ecdsa_check(EC_KEY *eckey);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* HEADER_ECS_LOCL_H */
|