StringUtil.java

package mods.ocminecart.common.util;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class StringUtil {
	static final String HEXES = "0123456789ABCDEF";
	public static String byteToHex(byte[] raw) {
	    if ( raw == null ) {
	        return null;
	    }
	    final StringBuilder hex = new StringBuilder( 2 * raw.length );
	    for ( final byte b : raw ) {
	        hex.append(HEXES.charAt((b & 0xF0) >> 4))
	            .append(HEXES.charAt((b & 0x0F)));
	    }
	    return hex.toString();
	}
	
	public static byte[] getMD5Array(String string){
		try {
			MessageDigest crypt = MessageDigest.getInstance("MD5");
			return crypt.digest(string.getBytes("UTF-8"));
		} catch (NoSuchAlgorithmException e) {
			e.printStackTrace();
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
		return null;
	}
}