/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package funkcjeskrotu;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import javax.xml.bind.DatatypeConverter;
import static javax.xml.bind.DatatypeConverter.printHexBinary;

/**
 *
 * @author tpodkowski
 */
public class FunkcjeSkrotu {

    /**
     * @param args the command line arguments
     */

    public static String getTextFromUser() {
        BufferedReader buffer = new BufferedReader(new InputStreamReader(System.in));
        String text = "";

        try {
            text = buffer.readLine();
        } catch (IOException e) {
        }

        return text;
    }

    public static String toHash(String method, String text) {
        try {
            long startTime = System.nanoTime();

            MessageDigest m = MessageDigest.getInstance(method);
            m.reset();
            m.update(text.getBytes());
            byte[] digest = m.digest();
            BigInteger bigInt = new BigInteger(1, digest);

            System.out.println(method + " time: " + (System.nanoTime() - startTime));
            return bigInt.toString(16);
        } catch (NoSuchAlgorithmException e) {
            return "";
        }
    }

    public static void main(String[] args) {
        String text = getTextFromUser();

        System.out.println("MD5: " + toHash("MD5", text));
        System.out.println("SHA-1: " + toHash("SHA-1", text));
        System.out.println("SHA-256: " + toHash("SHA-256", text));
    }

}