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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id:
*
* Copyright © 2009 Michael Sparmann
*
* 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 __CRYPTO_S5L8702_H__
#define __CRYPTO_S5L8702_H__
#include <stdint.h>
#include "config.h"
/* IM3 */
#if CONFIG_CPU == S5L8702
#define IM3_IDENT "8702"
#define IM3_VERSION "1.0"
#define IM3HDR_SZ 0x800
#elif CONFIG_CPU == S5L8720
#define IM3_IDENT "8720"
#define IM3_VERSION "2.0"
#define IM3HDR_SZ 0x600
#endif
#define SHA1_SZ 20 /* bytes */
#define SIGN_SZ 16
#ifndef ASM
#define IM3INFO_SZ (sizeof(struct Im3Info))
#define IM3INFOSIGN_SZ (offsetof(struct Im3Info, info_sign))
struct Im3Info
{
uint8_t ident[4];
uint8_t version[3];
uint8_t enc_type;
uint8_t entry[4]; /* LE */
uint8_t data_sz[4]; /* LE */
union {
struct {
uint8_t data_sign[SIGN_SZ];
uint8_t _reserved[32];
} enc12;
struct {
uint8_t sign_off[4]; /* LE */
uint8_t cert_off[4]; /* LE */
uint8_t cert_sz[4]; /* LE */
uint8_t _reserved[36];
} enc34;
} u;
uint8_t info_sign[SIGN_SZ];
} __attribute__ ((packed));
struct Im3Hdr
{
struct Im3Info info;
uint8_t _zero[IM3HDR_SZ - sizeof(struct Im3Info)];
} __attribute__ ((packed));
enum hwkeyaes_direction
{
HWKEYAES_DECRYPT = 0,
HWKEYAES_ENCRYPT = 1
};
enum hwkeyaes_keyidx
{
HWKEYAES_GKEY = 1, /* device model key */
HWKEYAES_UKEY = 2 /* device unique key */
};
void hwkeyaes(enum hwkeyaes_direction direction,
uint32_t keyidx, void* data, uint32_t size);
void sha1(void* data, uint32_t size, void* hash);
void im3_sign(uint32_t keyidx, void* data, uint32_t size, void* sign);
void im3_crypt(enum hwkeyaes_direction direction,
struct Im3Info *hinfo, void *fw_addr);
#endif /* ASM */
#endif /* __CRYPTO_S5L8702_H__ */
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