58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/*
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* Copyright (C) 2009 Martin Willi
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* HSR Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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/**
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* @defgroup gcrypt_dh gcrypt_dh
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* @{ @ingroup gcrypt_p
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*/
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#ifndef GCRYPT_DH_H_
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#define GCRYPT_DH_H_
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typedef struct gcrypt_dh_t gcrypt_dh_t;
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#include <library.h>
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/**
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* Implementation of the Diffie-Hellman algorithm using libgcrypt mpi.
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*/
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struct gcrypt_dh_t {
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/**
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* Implements diffie_hellman_t interface.
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*/
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diffie_hellman_t dh;
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};
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/**
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* Creates a new gcrypt_dh_t object.
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*
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* @param group Diffie Hellman group number to use
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* @return gcrypt_dh_t object, NULL if not supported
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*/
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gcrypt_dh_t *gcrypt_dh_create(diffie_hellman_group_t group);
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/**
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* Creates a new gcrypt_dh_t object for MODP_CUSTOM.
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*
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* @param group MODP_CUSTOM
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* @param ... expects generator and prime as chunk_t
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* @return gcrypt_dh_t object, NULL if not supported
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*/
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gcrypt_dh_t *gcrypt_dh_create_custom(diffie_hellman_group_t group, ...);
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#endif /** GCRYPT_DH_H_ @}*/
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