61 lines
No EOL
1.8 KiB
C
61 lines
No EOL
1.8 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.
|
|
*
|
|
****************************************************************************/
|
|
#include <stdio.h>
|
|
#include "fwp.h"
|
|
#include "misc.h"
|
|
#include "mg.h"
|
|
#include <string.h>
|
|
|
|
int fwp_read(void *in, int size, void *out, uint8_t *key)
|
|
{
|
|
return mg_decrypt_fw(in, size, out, key);
|
|
}
|
|
|
|
int fwp_write(void *in, int size, void *out, uint8_t *key)
|
|
{
|
|
return mg_encrypt_fw(in, size, out, key);
|
|
}
|
|
|
|
static uint8_t g_key[NWZ_KEY_SIZE];
|
|
|
|
void fwp_setkey(char key[NWZ_KEY_SIZE])
|
|
{
|
|
memcpy(g_key, key, NWZ_KEY_SIZE);
|
|
}
|
|
|
|
int fwp_crypt(void *buf, int size, int mode)
|
|
{
|
|
while(size >= NWZ_KEY_SIZE)
|
|
{
|
|
if(mode)
|
|
mg_decrypt_pass(buf, NWZ_KEY_SIZE, buf, g_key);
|
|
else
|
|
mg_encrypt_pass(buf, NWZ_KEY_SIZE, buf, g_key);
|
|
buf += NWZ_KEY_SIZE;
|
|
size -= NWZ_KEY_SIZE;
|
|
}
|
|
if(size != 0)
|
|
{
|
|
cprintf(GREY, "Cannot fwp_crypt non-multiple of 8!\n");
|
|
return -1;
|
|
}
|
|
return 0;
|
|
} |