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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 <stdbool.h>
#include "tls/s2n_kem.h"
#include "tls/s2n_kex.h"

struct s2n_kem_preferences {
    /* kems used for hybrid TLS 1.2 */
    uint8_t kem_count;
    const struct s2n_kem **kems;

    /* tls13_kem_groups used for hybrid TLS 1.3 */
    uint8_t tls13_kem_group_count;
    const struct s2n_kem_group **tls13_kem_groups;
};

extern const struct s2n_kem *pq_kems_r1[2];
extern const struct s2n_kem *pq_kems_r2r1[4];
extern const struct s2n_kem *pq_kems_r2r1_2020_07[5];
extern const struct s2n_kem *pq_kems_sike_r1[1];
extern const struct s2n_kem *pq_kems_sike_r2r1[2];

extern const struct s2n_kem_group *pq_kem_groups_r2[];

extern const struct s2n_kem_preferences kem_preferences_kms_pq_tls_1_0_2019_06;
extern const struct s2n_kem_preferences kem_preferences_kms_pq_tls_1_0_2020_02;
extern const struct s2n_kem_preferences kem_preferences_kms_pq_tls_1_0_2020_07;
extern const struct s2n_kem_preferences kem_preferences_pq_sike_test_tls_1_0_2019_11;
extern const struct s2n_kem_preferences kem_preferences_pq_sike_test_tls_1_0_2020_02;
extern const struct s2n_kem_preferences kem_preferences_pq_tls_1_0_2020_12;
extern const struct s2n_kem_preferences kem_preferences_null;

bool s2n_kem_preferences_includes_tls13_kem_group(const struct s2n_kem_preferences *kem_preferences,
        uint16_t query_iana_id);