60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/*
|
|
* Copyright (C) 2012 Adrian-Ken Rueegsegger
|
|
* HSR 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.
|
|
*/
|
|
|
|
/**
|
|
* @defgroup nonce_gen nonce_gen
|
|
* @{ @ingroup crypto
|
|
*/
|
|
|
|
#ifndef NONCE_GEN_H_
|
|
#define NONCE_GEN_H_
|
|
|
|
typedef struct nonce_gen_t nonce_gen_t;
|
|
|
|
#include <library.h>
|
|
|
|
/**
|
|
* Generic interface for nonce generators.
|
|
*/
|
|
struct nonce_gen_t {
|
|
|
|
/**
|
|
* Generates a nonce and writes it into the buffer.
|
|
*
|
|
* @param size size of nonce in bytes
|
|
* @param buffer pointer where the generated nonce will be written
|
|
* @return TRUE if nonce allocation was successful, FALSE otherwise
|
|
*/
|
|
bool (*get_nonce)(nonce_gen_t *this, size_t size,
|
|
uint8_t *buffer) __attribute__((warn_unused_result));
|
|
|
|
/**
|
|
* Generates a nonce and allocates space for it.
|
|
*
|
|
* @param size size of nonce in bytes
|
|
* @param chunk chunk which will hold the generated nonce
|
|
* @return TRUE if nonce allocation was successful, FALSE otherwise
|
|
*/
|
|
bool (*allocate_nonce)(nonce_gen_t *this, size_t size,
|
|
chunk_t *chunk) __attribute__((warn_unused_result));
|
|
|
|
/**
|
|
* Destroys a nonce generator object.
|
|
*/
|
|
void (*destroy)(nonce_gen_t *this);
|
|
};
|
|
|
|
#endif /** NONCE_GEN_H_ @}*/
|