rockbox/utils/nwztools/upgtools/keysig_search.h
Amaury Pouly 5cfd4a5b8e nwztools/upgtools: add more brute force algorithms
Allow to search for hex with upper case and alphanumeric. This is *much* slower
of course.

Change-Id: I41a2fc63c4b2220c21147b711098ebc37ddb3527
2017-01-04 17:04:19 +01:00

54 lines
1.7 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2012 Amaury Pouly
*
* 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.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef __keysig_search_h__
#define __keysig_search_h__
#include <stdbool.h>
#include <stdint.h>
#include <stddef.h>
#include "fwp.h"
enum keysig_search_method_t
{
KEYSIG_SEARCH_NONE = 0,
KEYSIG_SEARCH_FIRST,
KEYSIG_SEARCH_XDIGITS = KEYSIG_SEARCH_FIRST,
KEYSIG_SEARCH_XDIGITS_UP,
KEYSIG_SEARCH_ALNUM,
KEYSIG_SEARCH_LAST
};
/* notify returns true if the key seems ok */
typedef bool (*keysig_notify_fn_t)(void *user, uint8_t key[NWZ_KEY_SIZE],
uint8_t sig[NWZ_SIG_SIZE]);
struct keysig_search_desc_t
{
const char *name;
const char *comment;
};
struct keysig_search_desc_t keysig_search_desc[KEYSIG_SEARCH_LAST];
bool keysig_search(int method, uint8_t *enc_buf, size_t buf_sz,
keysig_notify_fn_t notify, void *user, int nr_threads);
#endif /* __keysig_search_h__ */