Hang on invalid data

[winkmichael]

Very cool code, thanks for writing this and sharing it.

I've run into an issue where if I send invalid data to be decoded the Decode method hangs. Any way to resolve this or do a IsValid on the input first?

Thanks!

[VadimReut]

Hi @winkmichael !
I also found this code very useful. To resolve the issue you mentioned I added the following code:

public static byte[] Decode(string data)
        {
            for (var i = 0; i < data.Length; i++)
            {
                var digit = EncodingTable.IndexOf(data[i]); //Slow
                if (digit < 0)
                {
                    throw new FormatException(string.Format("Invalid ZBase32 character {0} at position {1}", data[i], i));
                }
            }

Please note that these changes affect the performance. So, use it wisely :)