StringUtils.java

package com.marshalchen.common.uimodule.passcodelock;

import android.util.Log;

import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class StringUtils {

	public static String getMd5Hash(String input) {
		try {
			MessageDigest md = MessageDigest.getInstance("MD5");
			byte[] messageDigest = md.digest(input.getBytes());
			BigInteger number = new BigInteger(1, messageDigest);
			String md5 = number.toString(16);

			while (md5.length() < 32)
				md5 = "0" + md5;

			return md5;
		} catch (NoSuchAlgorithmException e) {
			Log.e("MD5", e.getLocalizedMessage());
			return null;
		}
	}

}