openssl/include/crypto/dsa.h
Richard Levitte 0abae1636d EVP: Implement support for key downgrading in backends
Downgrading EVP_PKEYs from containing provider side internal keys to
containing legacy keys demands support in the EVP_PKEY_ASN1_METHOD.

This became a bit elaborate because the code would be almost exactly
the same as the import functions int EVP_KEYMGMT.  Therefore, we end
up moving most of the code to common backend support files that can be
used both by legacy backend code and by our providers.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11375)
2020-03-25 17:01:32 +01:00

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1.5 KiB
C

/*
* Copyright 2019-2020 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/core.h>
#include <openssl/dsa.h>
#include "internal/ffc.h"
#define DSA_PARAMGEN_TYPE_FIPS_186_2 1 /* Use legacy FIPS186-2 standard */
#define DSA_PARAMGEN_TYPE_FIPS_186_4 2 /* Use FIPS186-4 standard */
DSA *dsa_new_with_ctx(OPENSSL_CTX *libctx);
int dsa_generate_ffc_parameters(DSA *dsa, int type,
int pbits, int qbits, int gindex,
BN_GENCB *cb);
int dsa_sign_int(int type, const unsigned char *dgst,
int dlen, unsigned char *sig, unsigned int *siglen, DSA *dsa);
const unsigned char *dsa_algorithmidentifier_encoding(int md_nid, size_t *len);
FFC_PARAMS *dsa_get0_params(DSA *dsa);
int dsa_key_fromdata(DSA *dsa, const OSSL_PARAM params[]);
int dsa_generate_public_key(BN_CTX *ctx, const DSA *dsa, const BIGNUM *priv_key,
BIGNUM *pub_key);
int dsa_check_params(const DSA *dsa, int *ret);
int dsa_check_pub_key(const DSA *dsa, const BIGNUM *pub_key, int *ret);
int dsa_check_pub_key_partial(const DSA *dsa, const BIGNUM *pub_key, int *ret);
int dsa_check_priv_key(const DSA *dsa, const BIGNUM *priv_key, int *ret);
int dsa_check_pairwise(const DSA *dsa);