Wrap Username and Password as Authentication token in .Net Web Service

The following code block was written in C# to combine username and password together. As you can notice, strings is a sequences of characters ending in '\0' , which here I used Convert.ToChar(0) to generate.

 

        public static String WrapUsernamePassword(String username, String password)
        {
            String package = username;
            package += Convert.ToChar(0);
            package += password;
            return package;
        }

        public static void ParseToken(String token, out String username, out String password)
        {
            String[] tokenParts = token.Split(new Char[] {Convert.ToChar(0)});
            if(tokenParts.Length == 2) 
            {
                username = tokenParts[0];
                password = tokenParts[1];
            }
            else
            {
                username = "";
                password = "";
            }
        }