Java tutorial
import java.security.MessageDigest; import java.security.Security; public class MainClass { public static void main(String args[]) throws Exception { Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); MessageDigest sha = MessageDigest.getInstance("SHA-1"); byte[] data1 = { 65, 66, 67, 68, 69 }; sha.update(data1); byte[] msgDigest = sha.digest(); System.out.println("--- Message Digest ---"); for (int i = 0; i < msgDigest.length; i++) { System.out.print(msgDigest[i] + " "); } } }