Sunday, 14 March 2010

Binary data and strings

Don't expose your bits in publicYou have no idea how often I get an e-mail that talks about binary data (for me, usually protobuf data) and string encoding (usually via utf-8).

Here’s the thing folks: most binary data cannot be translated to a string with a utf-* translation. It just isn’t possible. If you are talking about an arbitrary byte sequence that you need to store or transmit as a string, then your best bet is base-64.

Fortunately, in .NET Convert.ToBase64String and Convert.FromBase64String deal with all the details, making it trivial to use.

I keep talking myself into (and then back out-of) adding string-based overloads (etc) to protobuf-net; maybe I’ll add them just to stop the internal debate…

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