109 lines
3.1 KiB
C
109 lines
3.1 KiB
C
/**
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* @file encryption_payload.h
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*
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* @brief Interface of encryption_payload_t.
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*/
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/*
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* Copyright (C) 2005 Jan Hutter, Martin Willi
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* 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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#ifndef ENCRYPTION_PAYLOAD_H_
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#define ENCRYPTION_PAYLOAD_H_
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#include <types.h>
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#include <transforms/crypters/crypter.h>
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#include <transforms/signers/signer.h>
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#include <encoding/payloads/payload.h>
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#include <utils/linked_list.h>
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/**
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* Encrpytion payload length in bytes without IV and following data.
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*/
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#define ENCRYPTION_PAYLOAD_HEADER_LENGTH 4
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typedef struct encryption_payload_t encryption_payload_t;
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/**
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* @brief The encryption payload as described in RFC section 3.14.
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*
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* @ingroup payloads
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*/
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struct encryption_payload_t {
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/**
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* Implements payload_t interface.
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*/
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payload_t payload_interface;
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/**
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* @brief Creates an iterator for all contained payloads.
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*
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* @warning iterator_t object has to get destroyed by the caller.
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*
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* @param this calling encryption_payload_t object
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* @param[in] forward iterator direction (TRUE: front to end)
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* return created iterator_t object
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*/
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iterator_t *(*create_payload_iterator) (encryption_payload_t *this, bool forward);
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/**
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* @brief Adds a payload to this encryption payload.
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*
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* @param this calling encryption_payload_t object
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* @param payload payload_t object to add
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*/
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void (*add_payload) (encryption_payload_t *this, payload_t *payload);
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/**
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* @brief Decrypt and return contained data.
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*
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* Decrypt the contained data (encoded payloads) using supplied crypter.
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*
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* @param this calling encryption_payload_t
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* @param crypter crypter_t to use for data decryption
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* @param[out]data resulting data in decrypted and unpadded form
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* @return
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* - SUCCESS, or
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* - FAILED if crypter does not match data
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*/
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void (*set_signer) (encryption_payload_t *this, signer_t *signer);
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status_t (*encrypt) (encryption_payload_t *this, crypter_t *crypter);
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status_t (*decrypt) (encryption_payload_t *this, crypter_t *crypter);
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status_t (*build_signature) (encryption_payload_t *this, chunk_t data);
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status_t (*verify_signature) (encryption_payload_t *this, chunk_t data);
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/**
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* @brief Destroys an encryption_payload_t object.
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*
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* @param this encryption_payload_t object to destroy
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*/
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void (*destroy) (encryption_payload_t *this);
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};
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/**
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* @brief Creates an empty encryption_payload_t object.
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*
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* @return created encryption_payload_t object
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*
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* @ingroup payloads
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*/
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encryption_payload_t *encryption_payload_create();
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#endif /*ENCRYPTION_PAYLOAD_H_*/
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