Java Hash Code Calculate generateHash(final String msg, final String hashAlgorithm)

Description

generate Hash

License

Open Source License

Declaration

public static String generateHash(final String msg, final String hashAlgorithm) 

Method Source Code

//package com.java2s;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Main {
    public static String generateHash(final String msg, final String hashAlgorithm) {

        if (!hashAlgorithm.equals("plain")) {
            StringBuffer hexString = new StringBuffer();

            try {

                MessageDigest messageDigest = MessageDigest.getInstance(hashAlgorithm);
                messageDigest.update(msg.getBytes());
                byte[] digest = messageDigest.digest();

                for (byte aDigest : digest) {

                    String val = Integer.toHexString(0xFF & aDigest);

                    if (val.length() < 2) {
                        val = "0" + val;
                    }//  www . j  av  a  2  s.  c o m

                    hexString.append(val);
                }

            } catch (NoSuchAlgorithmException e) {
                e.printStackTrace();
            }

            return hexString.toString();
        } else {
            return msg;
        }
    }
}

Related

1. generateHash(byte[] data)
2. generateHash(char[] password, byte[] salt)
3. generateHash(File file)
4. generateHash(final String data)
5. generateHash(final String input)
6. generateHash(String algo, byte[]... bytes)
7. generateHash(String input)
8. generateHash(String input, String salt)
9. generateHash(String item)