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/*
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
#pragma once
#include <openssl/ecdsa.h>
#include <stdint.h>
#include "api/s2n.h"
#include "crypto/s2n_ecc_evp.h"
#include "crypto/s2n_hash.h"
#include "stuffer/s2n_stuffer.h"
#include "utils/s2n_blob.h"
/* Forward declaration to avoid the circular dependency with s2n_pkey.h */
struct s2n_pkey;
struct s2n_ecdsa_key {
/*
* Starting in openssl_3, `EVP_PKEY_get1_EC_KEY` and `EVP_PKEY_get0_EC_KEY`
* functions return a pre-cached copy of the underlying key. This means that any
* mutations are not reflected back onto the underlying key.
*
* The `const` identifier is present to help ensure that the key is not mutated.
* Usecases which require a non-const EC_KEY (some openssl functions), should
* use `s2n_unsafe_ecdsa_get_non_const` while ensuring that the usage is safe.
*/
const EC_KEY *ec_key;
};
typedef struct s2n_ecdsa_key s2n_ecdsa_public_key;
typedef struct s2n_ecdsa_key s2n_ecdsa_private_key;
int s2n_ecdsa_pkey_init(struct s2n_pkey *pkey);
int s2n_ecdsa_pkey_matches_curve(const struct s2n_ecdsa_key *ecdsa_key, const struct s2n_ecc_named_curve *curve);
int s2n_evp_pkey_to_ecdsa_public_key(s2n_ecdsa_public_key *ecdsa_key, EVP_PKEY *pkey);
int s2n_evp_pkey_to_ecdsa_private_key(s2n_ecdsa_private_key *ecdsa_key, EVP_PKEY *pkey);
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