package com.atolsystems.memop.scramblers;
import com.atolsystems.atolutilities.AFileChooser;
import com.atolsystems.atolutilities.AStringUtilities;
import com.atolsystems.atolutilities.IntelHexFileReader;
import com.atolsystems.atolutilities.MemRange;
import com.atolsystems.atolutilities.ProgrammingChunk;
import com.atolsystems.atolutilities.VerilogMemFileWriter;
import com.atolsystems.memop.AbstractMemScrambler;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.swing.filechooser.FileNameExtensionFilter;
/**
*
* @author sebastien.riou
*/
public class TestMemCodec extends AbstractMemScrambler{
static final int AES_sbox[] = {
//0 1 2 3 4 5 6 7 8 9 A B C D E F
0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76, //0
0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, //1
0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15, //2
0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75, //3
0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, //4
0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf, //5
0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8, //6
0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, //7
0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73, //8
0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb, //9
0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79, //A
0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08, //B
0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a, //C
0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e, //D
0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf, //E
0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 }; //F
static final int AES_sbox_inv[] = {
0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d };
@Override
public void addressScrambling(boolean encrypt, List<ProgrammingChunk> image){
List<ProgrammingChunk> temp=new ArrayList<ProgrammingChunk>();
//mod 64 address scrambling by simple xor
for(int i=0;i<image.size();i++){
ProgrammingChunk chunk=image.get(i);
MemRange range=MemRange.address2MemRange(addressKeysMap,chunk.getAddress());
if(null!=range){
byte []key=range.key;
int first=temp.size();
long baseAddress=chunk.getAddress();
for(int iByte=0;iByte<chunk.getSize();iByte++){
long address=(baseAddress+iByte);
address=address^(0x3E & key[(int)(address%key.length)]);
byte []data=new byte[1];
data[0]=chunk.getData(iByte);
temp.add(new ProgrammingChunk(address, data));
}
ProgrammingChunk.pack(temp,first, first+chunk.getSize()-1);//to limit the number of chunks in the list
}else
temp.add(chunk);
}
ProgrammingChunk.pack(temp);
image.clear();
image.addAll(temp);
}
@Override
public ProgrammingChunk processChunk(boolean encrypt, ProgrammingChunk chunk, byte []key){
ProgrammingChunk out;
byte [] dataIn=chunk.getData();
byte [] dataOut=new byte[dataIn.length];
long address=chunk.getAddress();
int keyOffset=(int)(address % key.length);
for(int i=0;i<dataOut.length;i++){
byte toXor=key[keyOffset];
keyOffset++;
keyOffset=keyOffset % key.length;
/*if(((address+i)%512)>255)
dataOut[i]=(byte) AES_sbox_inv[(0xFF & (dataIn[i] ^ toXor))];
else*/
dataOut[i]=(byte) ((byte) AES_sbox[(0xFF & (dataIn[i] ^ toXor))] ^ dataIn[i]);
}
out=new ProgrammingChunk(chunk.getAddress(),dataOut);
return out;
}
static private final String HEXFILE_PATH_PREFERENCE_KEY = "com.samsung.lsi.scard.memenc.HexFilePath";
public static void main(String[] args) throws FileNotFoundException, IOException {
//get input file
File fin;
if(0==args.length){
List<FileNameExtensionFilter> filters = new ArrayList<FileNameExtensionFilter>();
FileNameExtensionFilter filter;
filter = new FileNameExtensionFilter("hxd files", "hxd");
filter = new FileNameExtensionFilter("eep files", "eep");
filter = new FileNameExtensionFilter("hex files", "hex");
filters.add(filter);
String title = "Choose an hex file";
fin = AFileChooser.askForFile(filters, true, title, HEXFILE_PATH_PREFERENCE_KEY, true, false, false);
if (null == fin) {
System.out.println("Operation cancelled by user");
return;
}
}else{
fin=new File(args[0]);
}
List<ProgrammingChunk> fullImage=new ArrayList<ProgrammingChunk>();
fullImage.addAll(IntelHexFileReader.hexFile2ProgrammingChunks(fin));
//split into 5
List<ProgrammingChunk> specialArea=ProgrammingChunk.resizeImage(fullImage,0x400000, 0x300, (byte) 0xFF);
List<ProgrammingChunk> mat1SeRaw=ProgrammingChunk.resizeImage(fullImage, 0x500000, 0x020000, (byte) 0xFF);
List<ProgrammingChunk> mat1De=ProgrammingChunk.resizeImage(fullImage, 0x520000, 0x002000, (byte) 0xFF);
List<ProgrammingChunk> mat2=ProgrammingChunk.resizeImage(fullImage, 0x522000, 0x022000, (byte) 0xFF);
List<ProgrammingChunk> mat3=ProgrammingChunk.resizeImage(fullImage, 0x544000, 0x022000, (byte) 0xFF);
//output NVM key
byte []nvmKey=ProgrammingChunk.getData(specialArea, 0x400200, 8);
System.out.println("NVMKEY="+AStringUtilities.bytesToHex(nvmKey));
//encrypt mat1Se
List<ProgrammingChunk> mat1=new ArrayList<ProgrammingChunk>();
TestMemCodec codec=new TestMemCodec();
for(ProgrammingChunk chunk:mat1SeRaw){
mat1.add(codec.processChunk(true, chunk, nvmKey));
}
mat1.addAll(mat1De);
//generate output files
VerilogMemFileWriter.writeMemFile(new File(fin.getCanonicalPath()+".sp.vmem"), specialArea, 2);
VerilogMemFileWriter.writeMemFile(new File(fin.getCanonicalPath()+".m1.vmem"), mat1, 2);
VerilogMemFileWriter.writeMemFile(new File(fin.getCanonicalPath()+".m2.vmem"), mat2, 2);
VerilogMemFileWriter.writeMemFile(new File(fin.getCanonicalPath()+".m3.vmem"), mat3, 2);
}
}