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The shared secret is derived as bignum, and draft-ietf-sshm-mlkem-hybrid-kex mandates that it is converted to a fixed-size byte array. Not doing this would lead to incompatibilities with other implementations when the derived shared secret happens to start with zero bytes. Signed-off-by: Pavol Žáčik <pzacik@redhat.com> Reviewed-by: Jakub Jelen <jjelen@redhat.com>
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/*
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* This file is part of the SSH Library
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*
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* Copyright (c) 2025 by Red Hat, Inc.
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*
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* Author: Sahana Prasad <sahana@redhat.com>
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* Author: Pavol Žáčik <pzacik@redhat.com>
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* Author: Claude (Anthropic)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef HYBRID_MLKEM_H_
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#define HYBRID_MLKEM_H_
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#include "libssh/mlkem.h"
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#include "libssh/wrapper.h"
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#include "config.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define NISTP256_SHARED_SECRET_SIZE 32
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#define NISTP384_SHARED_SECRET_SIZE 48
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int ssh_client_hybrid_mlkem_init(ssh_session session);
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void ssh_client_hybrid_mlkem_remove_callbacks(ssh_session session);
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#ifdef WITH_SERVER
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void ssh_server_hybrid_mlkem_init(ssh_session session);
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#endif /* WITH_SERVER */
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#ifdef __cplusplus
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}
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#endif
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#endif /* HYBRID_MLKEM_H_ */
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