54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/*
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* Copyright (C) 2010 Martin Willi
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* Copyright (C) 2010 revosec AG
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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 gcm_aead gcm_aead
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* @{ @ingroup gcm
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*/
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#ifndef GCM_AEAD_H_
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#define GCM_AEAD_H_
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#include <crypto/aead.h>
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typedef struct gcm_aead_t gcm_aead_t;
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/**
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* Galois/Counter Mode (GCM).
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*
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* Implements GCM as specified in NIST 800-38D, using AEAD semantics from
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* RFC 5282, based on RFC4106.
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*/
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struct gcm_aead_t {
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/**
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* Implements aead_t interface.
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*/
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aead_t aead;
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};
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/**
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* Create a gcm_aead instance.
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*
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* @param algo algorithm to implement, a gcm mode
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* @param key_size key size in bytes
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* @param salt_size size of implicit salt length
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* @return aead, NULL if not supported
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*/
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gcm_aead_t *gcm_aead_create(encryption_algorithm_t algo, size_t key_size,
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size_t salt_size);
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#endif /** GCM_AEAD_H_ @}*/
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