public byte[] xtsBlockEncrypt(byte[] plain, int j) {
byte[] pp = xor(plain, tTable[j]);
aes.setKey(key1);
byte[] cc = aes.encrypt(pp);
byte[] cj = xor(cc, tTable[j]);
return cj;
}
public byte[] xtsBlockDecrypt(byte[] cipher, int j) {
byte[] cc = xor(cipher, tTable[j]);
aes.setKey(key1);
byte[] pp = aes.decrypt(cc);
byte[] pj = xor(pp, tTable[j]);
return pj;
}
public void start() {
try {
System.out.println(0x100);
// key
FileReader fr = new FileReader(k);
BufferedReader buff = new BufferedReader(fr);
String temp = buff.readLine();
key1 = temp.substring(0, 16).getBytes();
key2 = temp.substring(16, 32).getBytes();
aes.setKey(key2);
String input = "";
// input
fr = new FileReader(i);
buff = new BufferedReader(fr);
temp = buff.readLine();
if (temp != null) {
input = temp;
}
while ((temp = buff.readLine()) != null) {
input = input + "\r" + temp;
}
System.out.println(input);
plain = input.getBytes();
plainBlock = new byte[(int) Math.ceil(plain.length / 16)][16];
for (int i = 0; i < plainBlock.length; i++) {
System.arraycopy(plain, 16 * i, plainBlock[i], 0, 16);
}
for (int i = 0; i < plain.length; i++) {
System.out.print(plain[i] + " ");
}
System.out.println();
for (int i = 0; i < plainBlock.length; i++) {
for (int j = 0; j < plainBlock[i].length; j++) {
System.out.print(plainBlock[i][j] + " ");
}
System.out.println();
}
tTable = new byte[plainBlock.length][16];
tweakAfterEncrypt = aes.encrypt(tweak);
fillTTable();
// output
FileWriter fw = new FileWriter(o);
BufferedWriter bw = new BufferedWriter(fw);
for (int i = 0; i < plainBlock.length - 2; i++) {
xtsBlockEncrypt(plain, i);
}
} catch (Exception e) {
e.printStackTrace();
}
}
