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/***************************************************************************
* __________ __ ___.
* 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 "mg.h"
#include <cryptopp/cryptlib.h>
#include <cryptopp/modes.h>
#include <cryptopp/des.h>
#include <cryptopp/aes.h>
#include <stdio.h>
using namespace CryptoPP;
void mg_decrypt_fw(void *in, int size, void *out, uint8_t *key)
{
ECB_Mode< DES >::Decryption dec;
if(size % 8)
abort(); /* size must be a multiple of 8 */
dec.SetKey(key, 8);
dec.ProcessData((byte*)out, (byte*)in, size);
}
static ECB_Mode< DES >::Decryption g_des_ecb_dec;
void des_ecb_dec_set_key(const uint8_t key[8])
{
g_des_ecb_dec.SetKey(key, 8);
}
void des_ecb_dec(void *in, int size, void *out)
{
if(size % 8)
abort(); /* size must be a multiple of 8 */
g_des_ecb_dec.ProcessData((byte*)out, (byte*)in, size);
}
static ECB_Mode< DES >::Encryption g_des_ecb_enc;
void des_ecb_enc_set_key(const uint8_t key[8])
{
g_des_ecb_enc.SetKey(key, 8);
}
void des_ecb_enc(void *in, int size, void *out)
{
if(size % 8)
abort(); /* size must be a multiple of 8 */
g_des_ecb_enc.ProcessData((byte*)out, (byte*)in, size);
}
static ECB_Mode< AES >::Decryption g_aes_ecb_dec;
void aes_ecb_dec_set_key(const uint8_t key[16])
{
g_aes_ecb_dec.SetKey(key, 16);
}
void aes_ecb_dec(void *in, int size, void *out)
{
if(size % 16)
abort(); /* size must be a multiple of 16 */
g_aes_ecb_dec.ProcessData((byte*)out, (byte*)in, size);
}
static ECB_Mode< AES >::Encryption g_aes_ecb_enc;
void aes_ecb_enc_set_key(const uint8_t key[16])
{
g_aes_ecb_enc.SetKey(key, 16);
}
void aes_ecb_enc(void *in, int size, void *out)
{
if(size % 16)
abort(); /* size must be a multiple of 16 */
g_aes_ecb_enc.ProcessData((byte*)out, (byte*)in, size);
}
static CBC_Mode< AES >::Decryption g_aes_cbc_dec;
void aes_cbc_dec_set_key_iv(const uint8_t key[16], const uint8_t iv[16])
{
g_aes_cbc_dec.SetKeyWithIV(key, 16, iv);
}
void aes_cbc_dec(void *in, int size, void *out)
{
if(size % 16)
abort(); /* size must be a multiple of 16 */
g_aes_cbc_dec.ProcessData((byte*)out, (byte*)in, size);
}
static CBC_Mode< AES >::Encryption g_aes_cbc_enc;
void aes_cbc_enc_set_key_iv(const uint8_t key[16], const uint8_t iv[16])
{
g_aes_cbc_enc.SetKeyWithIV(key, 16, iv);
}
void aes_cbc_enc(void *in, int size, void *out)
{
if(size % 16)
abort(); /* size must be a multiple of 16 */
g_aes_cbc_enc.ProcessData((byte*)out, (byte*)in, size);
}
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