openssl/include/crypto/dh.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

30 lines
1.0 KiB
C

/*
* Copyright 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/dh.h>
#include "internal/ffc.h"
DH *dh_new_with_ctx(OPENSSL_CTX *libctx);
int dh_generate_ffc_parameters(DH *dh, int bits,
int qbits, int gindex, BN_GENCB *cb);
int dh_generate_public_key(BN_CTX *ctx, DH *dh, const BIGNUM *priv_key,
BIGNUM *pub_key);
FFC_PARAMS *dh_get0_params(DH *dh);
int dh_get0_nid(const DH *dh);
int dh_key_fromdata(DH *dh, const OSSL_PARAM params[]);
int dh_check_pub_key_partial(const DH *dh, const BIGNUM *pub_key, int *ret);
int dh_check_priv_key(const DH *dh, const BIGNUM *priv_key, int *ret);
int dh_check_pairwise(DH *dh);
const DH_METHOD *dh_get_method(const DH *dh);