public static void main(String args[]) {
// Takes input from user and stores in inputkey
Scanner in1 = new Scanner(System.in);
String inputKey = in1.nextLine();
// Takes 2nd input from user and stores in inputPlainText
Scanner in2 = new Scanner(System.in);
String plainText = in2.nextLine();
// If condition makes sure that user has entered exactly 32 hexadecimal digits
if (!inputKey.isEmpty() || !plainText.isEmpty()) {
if ((inputKey.matches("[0-9A-F]{32}")) && (plainText.matches("[0-9A-F]{32}"))) {
// cText stores the ciphertext
AEScipher kg = new AEScipher();
String cText = kg.aes(plainText, inputKey);
// Print the ciphertext
System.out.print(cText);
} else {
// If user input is incorrect, terminate the program
System.out.println("Invalid input key or plaintext, exiting.....");
}
} else {
System.out.println("Problem in input");
}
}
public byte[] readBytes(int playerId) {
try {
InputStream in = cm.getInputStream(playerId);
DataInputStream dis = new DataInputStream(in);
int len = dis.readInt();
byte[] data = new byte[len];
if (len > 0) {
dis.readFully(data);
}
return aesCipher.decrypt(data);
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
public void sendMessage(String msgToSend, int playerId) {
sendInsecuredBytes(aesCipher.encrypt(msgToSend.getBytes()), playerId);
}
public void sendBytes(byte[] myByteArray, int playerId) {
byte[] encrypted = aesCipher.encrypt(myByteArray);
sendBytes(encrypted, 0, encrypted.length, playerId);
}
public String receiveMessage(int id) {
return new String(aesCipher.decrypt(readInsecuredBytes(id)));
}
