public static String hashPseudoPassword(String pseudo, String password) {
		
		String concat = pseudo + password;
		MessageDigest md = null;
		try{
			 md = MessageDigest.getInstance(hashAlgo);
		}
		catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
		}
		
		md.update( concat.getBytes() );
		
		byte[] byteHash = md.digest();
		
		StringBuffer sb = new StringBuffer();
		
		for (int i=0; i< byteHash.length; i++){
			sb.append( Integer.toHexString( 0xff & byteHash[i]) );
		}
		
		return sb.toString();
	}