wiiqt/nand_dump/tiktmd.cpp

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#include "tiktmd.h"
#include "tools.h"
#include "aes.h"
#include <iostream>
Tmd::Tmd( QByteArray stuff )
{
data = stuff;
p_tmd = NULL;
if( data.isEmpty() || data.size() < 4 )//maybe 4 is still too low?
return;
SetPointer();
//hexdump( stuff );
}
quint64 Tmd::Tid()
{
if( !p_tmd )
return 0;
return qFromBigEndian( p_tmd->title_id );
}
QString Tmd::Cid( quint16 i )
{
if( p_tmd && i > qFromBigEndian( p_tmd->num_contents ) )
return QString();
return QString( "%1" ).arg( qFromBigEndian( p_tmd->contents[ i ].cid ), 8, 16, QChar( '0' ) );
}
QByteArray Tmd::Hash( quint16 i )
{
if( p_tmd && i > qFromBigEndian( p_tmd->num_contents ) )
return QByteArray();
return QByteArray( (const char*)&p_tmd->contents[ i ].hash, 20 );
}
quint64 Tmd::Size( quint16 i )
{
if( p_tmd && i > qFromBigEndian( p_tmd->num_contents ) )
return 0;
return qFromBigEndian( p_tmd->contents[ i ].size );
}
quint16 Tmd::Type( quint16 i )
{
if( p_tmd && i > qFromBigEndian( p_tmd->num_contents ) )
return 0;
return qFromBigEndian( p_tmd->contents[ i ].type );
}
quint32 Tmd::SignedSize()
{
return payLoadOffset + sizeof( tmd ) + ( sizeof( tmd_content ) * qFromBigEndian( p_tmd->num_contents ) );
}
void Tmd::SetPointer()
{
payLoadOffset = 0;
if( data.startsWith( "\x0\x1\x0\x0" ) )
payLoadOffset = sizeof( sig_rsa2048 );
else if( data.startsWith( "\x0\x1\x0\x1" ) )
payLoadOffset = sizeof( sig_rsa4096 );
else if( data.startsWith( "\x0\x1\x0\x2" ) )
payLoadOffset = sizeof( sig_ecdsa );
p_tmd = (tmd*)((quint8*)data.data() + payLoadOffset);
}
Ticket::Ticket( QByteArray stuff )
{
data = stuff;
p_tik = NULL;
if( data.isEmpty() || data.size() < 4 )//maybe 4 is still too low?
return;
SetPointer();
}
quint64 Ticket::Tid()
{
if( !p_tik )
return 0;
return qFromBigEndian( p_tik->titleid );
}
QByteArray Ticket::DecryptedKey()
{
quint8 iv[ 16 ];
quint8 keyin[ 16 ];
quint8 keyout[ 16 ];
static quint8 commonkey[ 16 ] = COMMON_KEY;
quint8 *enc_key = (quint8 *)&p_tik->cipher_title_key;
memcpy( keyin, enc_key, sizeof keyin );
memset( keyout, 0, sizeof keyout );
memset( iv, 0, sizeof iv);
memcpy( iv, &p_tik->titleid, sizeof p_tik->titleid );
aes_set_key( commonkey );
aes_decrypt( iv, keyin, keyout, sizeof( keyin ) );
return QByteArray( (const char*)&keyout, 16 );
}
quint32 Ticket::SignedSize()
{
return payLoadOffset + sizeof( tik );
}
void Ticket::SetPointer()
{
payLoadOffset = 0;
if( data.startsWith( "\x0\x1\x0\x0" ) )
payLoadOffset = sizeof( sig_rsa2048 );
else if( data.startsWith( "\x0\x1\x0\x1" ) )
payLoadOffset = sizeof( sig_rsa4096 );
else if( data.startsWith( "\x0\x1\x0\x2" ) )
payLoadOffset = sizeof( sig_ecdsa );
p_tik = (tik*)((quint8*)data.data() + payLoadOffset);
}