package com.demo.lib.common.util.security;

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

import android.util.Log;

public class MD5Utils {

    private static final String TAG = "MD5Util";

    public static String getMD532(String key) {
        String cacheKey = "";
        try {
            final MessageDigest mDigest = MessageDigest.getInstance("MD5");
            mDigest.update(key.getBytes());
            cacheKey = bytesToHexString(mDigest.digest());
        } catch (NoSuchAlgorithmException e) {
            Log.e(TAG, e.getMessage());
        }
        return cacheKey;
    }

    private static String bytesToHexString(byte[] bytes) {
        // http://stackoverflow.com/questions/332079
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < bytes.length; i++) {
            String hex = Integer.toHexString(0xFF & bytes[i]);
            if (hex.length() == 1) {
                sb.append('0');
            }
            sb.append(hex);
        }
        return sb.toString();
    }
}