108 lines
2.9 KiB
C
108 lines
2.9 KiB
C
/**
|
|
* @file signer.h
|
|
*
|
|
* @brief Generic interface for integrity algorithms
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2005 Jan Hutter, Martin Willi
|
|
* Hochschule fuer Technik Rapperswil
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
|
*
|
|
* This program 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 General Public License
|
|
* for more details.
|
|
*/
|
|
|
|
#ifndef SIGNER_H_
|
|
#define SIGNER_H_
|
|
|
|
#include "../../payloads/transform_substructure.h"
|
|
|
|
|
|
/**
|
|
* Object representing a diffie hellman exchange
|
|
*/
|
|
typedef struct signer_s signer_t;
|
|
|
|
struct signer_s {
|
|
/**
|
|
* @brief generates pseudo random bytes and writes them
|
|
* in the buffer
|
|
*
|
|
* @param this calling signer
|
|
* @param seed a chunk containing the seed for the next bytes
|
|
* @param [out]buffer pointer where the generated bytes will be written
|
|
* @return
|
|
* - SUCCESS in any case
|
|
*/
|
|
status_t (*get_signature) (signer_t *this, chunk_t data, u_int8_t *buffer);
|
|
|
|
/**
|
|
* @brief generates pseudo random bytes and allocate space for them
|
|
*
|
|
* @param this calling signer
|
|
* @param seed a chunk containing the seed for the next bytes
|
|
* @param [out]chunk chunk which will hold generated bytes
|
|
* @return
|
|
* - SUCCESS in any case
|
|
* - OUT_OF_RES if space could not be allocated
|
|
*/
|
|
status_t (*allocate_signature) (signer_t *this, chunk_t data, chunk_t *chunk);
|
|
|
|
/**
|
|
* @brief generates pseudo random bytes and writes them
|
|
* in the buffer
|
|
*
|
|
* @param this calling signer
|
|
* @param seed a chunk containing the seed for the next bytes
|
|
* @param [out]buffer pointer where the generated bytes will be written
|
|
* @return
|
|
* - SUCCESS in any case
|
|
*/
|
|
status_t (*verify_signature) (signer_t *this, chunk_t data, chunk_t signature, bool *valid);
|
|
|
|
/**
|
|
* @brief get the block size of this signer
|
|
*
|
|
* @param this calling signer
|
|
* @return block size in bytes
|
|
*/
|
|
size_t (*get_block_size) (signer_t *this);
|
|
|
|
/**
|
|
* @brief Set the key for this signer
|
|
*
|
|
* @param this calling signer
|
|
* @return block size in bytes
|
|
*/
|
|
status_t (*set_key) (signer_t *this, chunk_t key);
|
|
|
|
/**
|
|
* @brief Destroys a signer object.
|
|
*
|
|
* @param this signer_t object to destroy
|
|
* @return
|
|
* SUCCESS in any case
|
|
*/
|
|
status_t (*destroy) (signer_t *this);
|
|
};
|
|
|
|
/**
|
|
* Creates a new signer_t object
|
|
*
|
|
* @param pseudo_random_function Algorithm to use
|
|
* @return
|
|
* - signer_t if successfully
|
|
* - NULL if out of ressources or signer not supported
|
|
*/
|
|
signer_t *signer_create(integrity_algorithm_t integrity_algorithm);
|
|
|
|
#endif /*SIGNER_H_*/
|