BaseNcoding.BaseN.CharsToBits C# (CSharp) Метод

        private ulong CharsToBits(string data, int ind, int count)
        {
            ulong result = 0;
            for (int i = 0; i < count; i++)
                result += (ulong)InvAlphabet[data[ind + (!ReverseOrder ? i : count - 1 - i)]] * _powN[BlockCharsCount - 1 - i];
            return result;
        }