Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.io.File;
import java.io.FileInputStream;
import java.io.ObjectInputStream;

import javax.crypto.Cipher;
import javax.crypto.SealedObject;
import javax.crypto.SecretKey;

public class Main {
    private static Object readFromFile(String filename) throws Exception {
        ObjectInputStream ois = new ObjectInputStream(new FileInputStream(new File(filename)));
        Object object = ois.readObject();
        ois.close();
        return object;
    }

    public static void main(String[] args) throws Exception {
        SecretKey key = (SecretKey) readFromFile("secretkey.dat");
        SealedObject sealedObject = (SealedObject) readFromFile("sealed.dat");
        String algorithmName = sealedObject.getAlgorithm();
        Cipher cipher = Cipher.getInstance(algorithmName);
        cipher.init(Cipher.DECRYPT_MODE, key);
        String text = (String) sealedObject.getObject(cipher);
        System.out.println("Text = " + text);
    }
}