public static void PrimeFinder()
        {
            GaloisField256 field;

            for( int size = 2; size <= 256; size++ )
            {
                for( int primeElement = 2; primeElement <= 512; primeElement++ )
                {
                    field = new GaloisField256( size, primeElement );

                    if( VerifyField( field ) )
                    {
                        Console.Out.WriteLine( "Found - size: {0}; prime: {1}", size, primeElement );
                    }
                }
            }
        }
        public static bool VerifyField( GaloisField256 field )
        {
            HashSet<int> values = new HashSet<int>();

            for( int i = 0; i < field.Field.Length; i++ )
            {
                if( values.Contains( field.Field[i] ) )
                {
                    return false;
                }

                values.Add( field.Field[i] );
            }

            for( int i = 0; i < field.Field.Length; i++ )
            {
                if( values.Contains( i ) == false )
                {
                    return false;
                }
            }

            return true;
        }