import java.security.*;

public class Encrypt {

   private String password = null;

   public String getPassword() {
      return password;
   }


   public Encrypt() 
   {
   }

   public String new2Password( String passwd ) {
      try {
        MessageDigest md = MessageDigest.getInstance("SHA-1");
        String clearPassword = passwd;
        md.update(clearPassword.getBytes());
        byte[] digestedPassword = md.digest();
        return new String(digestedPassword);
      }
      catch (java.security.NoSuchAlgorithmException e) {
         System.out.println("Rats, MD5 doesn't exist");
         System.out.println(e.toString());
         return null;
      }
     
   }


   public void setPassword(String passwd) {
      try {
         MessageDigest sha = MessageDigest.getInstance("MD5");
         byte[] tmp = passwd.getBytes();
         sha.update(tmp);
         password = new String(sha.digest());
         
      }
      catch (java.security.NoSuchAlgorithmException e) {
         System.out.println("Rats, MD5 doesn't exist");
         System.out.println(e.toString());
      }
   }
   public static void main( String [] args ) 
   {
      Encrypt e = new Encrypt();
      String pwd = "kaana";
      e.setPassword( pwd) ;
      System.out.println("Password: " + pwd + " ==> " + e.getPassword()   + "\new2Password:" + e.new2Password( pwd ) );
      e.newPassword( pwd );
   }

}