import java.security.*;
import java.math.*;

// A 20 byte output hash with SHA, no matter what
public class MessageDigestTest {
   public static void main (String arg[]) {
      try {
	 MessageDigest md = MessageDigest.getInstance("SHA");
	 SecureRandom sr1 = new SecureRandom();
	 SecureRandom sr2 = new SecureRandom();
	 byte number1[] = new byte[80];
	 byte number2[] = new byte[80];
	 byte digest1[];
	 byte digest2[];
	 byte digest3[];
	 byte digest4[];

	 sr1.nextBytes(number1);
	 sr2.nextBytes(number2);

	 md.reset();
	 md.update (number1);
	 md.update (number1);
	 md.update (number1);
	 digest1 = md.digest();
	 try {
	    for (int i=0 ; ; i++)
	       System.out.print((int)digest1[i]+"|");
	 } catch (Exception e) {}
	 System.out.println("\n");

	 md.reset();
	 md.update (number2);
	 md.update (number2);
	 md.update (number2);
	 digest2 = md.digest();
	 try {
	    for (int i=0 ; ; i++) 
	       System.out.print((int)digest2[i]+"|");
	 } catch (Exception e) {}
	 System.out.println("\n");

	 md.reset();
	 md.update (number2);
	 md.update (number1);
	 md.update (number2);
	 digest3 = md.digest();
	 try {
	    for (int i=0 ; ; i++) 
	       System.out.print((int)digest3[i]+"|");
	 } catch (Exception e) {}
	 System.out.println("\n");

	 md.reset();
	 md.update (number1);
	 md.update (number2);
	 md.update (number2);
	 digest4 = md.digest();
	 try {
	    for (int i=0 ; ; i++) 
	       System.out.print((int)digest4[i]+"|");
	 } catch (Exception e) {}
	 System.out.println("\n");

      } catch (Exception e) {}
   }
}