MD5, SHA-1, SHA-2

import java.io.FileNotFoundException;
import java.security.*;
import java.util.Scanner;

public class zad5 {

    static long startTime = System.nanoTime();
    static long endsTime1 = System.nanoTime() - startTime;
    static Scanner sc = new Scanner(System.in);

    public static void md5(String message) throws NoSuchAlgorithmException {
        System.out.println("*****MD5*****");
        String result = "";
        char[] binary = message.toString().toCharArray();

        for (int i = 0; i < binary.length; i++) {
            result += Integer.toBinaryString(binary[i]) + " ";
        }
        System.out.println(result);

        MessageDigest md5 = MessageDigest.getInstance("MD5");
        startTime = System.nanoTime();
        md5.update(message.getBytes());
        byte[] msgDigest = md5.digest();
        endsTime1 = System.nanoTime() - startTime;

        StringBuffer sb = new StringBuffer();
        for (byte b : msgDigest) {
            sb.append(String.format("%02x", b & 0xff));
        }

        System.out.println("original:" + new String(message));
        System.out.println("digested(hex):" + sb.toString());
        System.out.println("Encryption: " + endsTime1 + " hash length: " + sb.toString().length());
        System.out.println();
    }

    public static void sha1(String message) throws NoSuchAlgorithmException {
        System.out.println("*****SHA-1*****");
        MessageDigest sha1 = MessageDigest.getInstance("SHA-1");
        startTime = System.nanoTime();
        sha1.update(message.getBytes());
        byte[] msgDigest = sha1.digest();
        endsTime1 = System.nanoTime() - startTime;

        StringBuffer sb = new StringBuffer();
        for (byte b : msgDigest) {
            sb.append(String.format("%02x", b & 0xff));
        }

        System.out.println("original:" + new String(message));
        System.out.println("digested(hex):" + sb.toString());
        System.out.println("Encryption: " + endsTime1 + " hash length: " + sb.toString().length());
        System.out.println();
    }

    public static void sha224(String message) throws NoSuchAlgorithmException {
        System.out.println("*****SHA-224*****");
        MessageDigest sha2 = MessageDigest.getInstance("SHA-224");
        startTime = System.nanoTime();
        sha2.update(message.getBytes());
        byte[] msgDigest = sha2.digest();
        endsTime1 = System.nanoTime() - startTime;

        StringBuffer sb = new StringBuffer();
        for (byte b : msgDigest) {
            sb.append(String.format("%02x", b & 0xff));
        }

        System.out.println("original:" + new String(message));
        System.out.println("digested(hex):" + sb.toString());
        System.out.println("Encryption: " + endsTime1 + " hash length: " + sb.toString().length());
        System.out.println();
    }

    public static void sha256(String message) throws NoSuchAlgorithmException {
        System.out.println("*****SHA-256*****");
        MessageDigest sha2 = MessageDigest.getInstance("SHA-256");
        startTime = System.nanoTime();
        sha2.update(message.getBytes());
        byte[] msgDigest = sha2.digest();
        endsTime1 = System.nanoTime() - startTime;

        StringBuffer sb = new StringBuffer();
        for (byte b : msgDigest) {
            sb.append(String.format("%02x", b & 0xff));
        }

        System.out.println("original:" + new String(message));
        System.out.println("digested(hex):" + sb.toString());
        System.out.println("Encryption: " + endsTime1 + " hash length: " + sb.toString().length());
        System.out.println();
    }

    public static void sha384(String message) throws NoSuchAlgorithmException {
        System.out.println("*****SHA-384*****");
        MessageDigest sha2 = MessageDigest.getInstance("SHA-384");
        startTime = System.nanoTime();
        sha2.update(message.getBytes());
        byte[] msgDigest = sha2.digest();
        endsTime1 = System.nanoTime() - startTime;

        StringBuffer sb = new StringBuffer();
        for (byte b : msgDigest) {
            sb.append(String.format("%02x", b & 0xff));
        }

        System.out.println("original:" + new String(message));
        System.out.println("digested(hex):" + sb.toString());
        System.out.println("Encryption: " + endsTime1 + " hash length: " + sb.toString().length());
        System.out.println();
    }

    public static void sha512(String message) throws NoSuchAlgorithmException {
        System.out.println("*****SHA-512*****");
        MessageDigest sha2 = MessageDigest.getInstance("SHA-512");
        startTime = System.nanoTime();
        sha2.update(message.getBytes());
        byte[] msgDigest = sha2.digest();
        endsTime1 = System.nanoTime() - startTime;

        StringBuffer sb = new StringBuffer();
        for (byte b : msgDigest) {
            sb.append(String.format("%02x", b & 0xff));
        }

        System.out.println("original:" + new String(message));
        System.out.println("digested(hex):" + sb.toString());
        System.out.println("Encryption: " + endsTime1 + " hash length: " + sb.toString().length());
        System.out.println();
    }

    public static void main(String[] args) throws FileNotFoundException, NoSuchAlgorithmException {

        System.out.println("Give me message which you want encrypt: ");
        String message = sc.nextLine();

        md5(message);
        sha1(message);
        sha224(message);
        sha256(message);
        sha384(message);
        sha512(message);

    }
}