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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 "api/s2n.h"
#include "crypto/s2n_hash.h"
#include "crypto/s2n_signature.h"
#include "stuffer/s2n_stuffer.h"
#include "tls/s2n_signature_scheme.h"
struct s2n_connection;
struct s2n_sig_scheme_list {
uint16_t iana_list[TLS_SIGNATURE_SCHEME_LIST_MAX_LEN];
uint8_t len;
};
int s2n_choose_default_sig_scheme(struct s2n_connection *conn, struct s2n_signature_scheme *sig_scheme_out, s2n_mode signer);
int s2n_tls13_default_sig_scheme(struct s2n_connection *conn, struct s2n_signature_scheme *sig_scheme_out);
int s2n_choose_sig_scheme_from_peer_preference_list(struct s2n_connection *conn, struct s2n_sig_scheme_list *sig_hash_algs,
struct s2n_signature_scheme *sig_scheme_out);
int s2n_get_and_validate_negotiated_signature_scheme(struct s2n_connection *conn, struct s2n_stuffer *in,
struct s2n_signature_scheme *chosen_sig_scheme);
int s2n_recv_supported_sig_scheme_list(struct s2n_stuffer *in, struct s2n_sig_scheme_list *sig_hash_algs);
int s2n_send_supported_sig_scheme_list(struct s2n_connection *conn, struct s2n_stuffer *out);
int s2n_supported_sig_schemes_count(struct s2n_connection *conn);
int s2n_supported_sig_scheme_list_size(struct s2n_connection *conn);
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