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mlkem.h
/*
* This file is part of the SSH Library
*
* Copyright (c) 2025 by Red Hat, Inc.
*
* Author: Pavol Žáčik <pzacik@redhat.com>
*
* The SSH Library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, version 2.1 of the License.
*
* The SSH Library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the SSH Library; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
#ifndef MLKEM_H_
#define MLKEM_H_
#include "libssh/crypto.h"
#include "libssh/libssh.h"
#include "libssh/session.h"
#include "config.h"
#ifdef __cplusplus
extern "C" {
#endif
struct mlkem_type_info {
size_t pubkey_size;
size_t ciphertext_size;
#ifdef HAVE_GCRYPT_MLKEM
size_t privkey_size;
enum gcry_kem_algos alg;
#elif defined(HAVE_OPENSSL_MLKEM)
const char *name;
#else
size_t privkey_size;
#endif
};
extern const struct mlkem_type_info MLKEM768_INFO;
#ifdef HAVE_MLKEM1024
extern const struct mlkem_type_info MLKEM1024_INFO;
#endif
#define MLKEM_SHARED_SECRET_SIZE 32
typedef unsigned char ssh_mlkem_shared_secret[MLKEM_SHARED_SECRET_SIZE];
const struct mlkem_type_info *
kex_type_to_mlkem_info(enum ssh_key_exchange_e kex_type);
int ssh_mlkem_init(ssh_session session);
int ssh_mlkem_encapsulate(ssh_session session,
ssh_mlkem_shared_secret shared_secret);
int ssh_mlkem_decapsulate(const ssh_session session,
ssh_mlkem_shared_secret shared_secret);
#ifdef __cplusplus
}
#endif
#endif /* MLKEM_H_ */
mlkem_type_info
Definition mlkem.h:36