calculate lrc

here is procedure how to claculate LRC for a string in c#

            public static byte calculateLRC(byte[] ba, int offset, int length)
            {
                byte lrc = 0x0;
                for (int i = offset; i < length; i++)
                    lrc ^= ba[i];
                return lrc;
            }

            public static byte calculateLRC(string s, int offset, int length)
            {
                byte[] b = Encoding.ASCII.GetBytes(s);
                byte l = calculateLRC(b, offset, length);
                return l;
            }
            public static byte calculateLRC(string s)
            {
                byte l = calculateLRC(s, 0, s.Length);
                return l;
            }