This is a C# implementation of Base 32 based on the scheme described by Douglas Crockford. It uses a symbol set of 10 digits and 22 uppercase. Letter U is not allowed; letters I and L are treated the same as 1 and O is treated the same as 0.

This implementation does not support check symbols that are otherwise defined for the purpose of detecting wrong-symbol and transposed-symbol errors.

Include Crockbase32.cs in your project.

To encode a byte string (where all characters are in the range 0 to 255):

var encoded = Crockbase32.EncodeByteString("foobar");
Console.WriteLine(encoded);
// prints CSQPYRK1E8

To decode:

var decoded = Crockbase32.Decode("CSQPYRK1E8");
Console.WriteLine(string.Join(",", decoded));
// prints 102,111,111,98,97,114

Hyphens (-) can be inserted into symbol strings. This can partition a string into manageable pieces, improving readability by helping to prevent confusion. Hyphens are ignored during decoding.