de.thksystems.util.crypto.PasswordUtils Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of tkscommons Show documentation

Commons for lang, crypto, dom, text, csv, reflection, parsing, xtreams...

There is a newer version: 1.1.1

/*
 * tksCommons
 * 
 * Author  : Thomas Kuhlmann (ThK-Systems, http://www.thk-systems.de)
 * License : LGPL (https://www.gnu.org/licenses/lgpl.html)
 */
package de.thksystems.util.crypto;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

import org.bouncycastle.util.encoders.Base64;

import de.thksystems.exception.ServiceRuntimeException;

/**
 * Tools to encrypt passwords.
 */
public final class PasswordUtils {

	protected static final String PASSWORD_HASHALGO = "SHA-256";

	private PasswordUtils() {
	}

	/**
	 * Encrypts given password using SHA-256 and encodes Base64 .
	 */
	public static String encryptAsPassword(String password) {
		if (password == null || password.length() == 0) {
			return null;
		}
		try {
			MessageDigest md = MessageDigest.getInstance(PASSWORD_HASHALGO);
			byte[] digest = md.digest(password.getBytes());
			String encryptedPassword = new String(Base64.encode(digest));
			return encryptedPassword;
		} catch (NoSuchAlgorithmException e) {
			throw new ServiceRuntimeException(e);
		}
	}
}