In part one of this blog post series on an upcoming multi-platform RADAuthenticator Delphi app, we went over base32 encoding which is used for managing the secret key in Google Authenticator compat...

Programmers can be an odd lot - we can have a perfectly good tool available to us and we still yearn to build our own version of it. In this case, Google Authenticator was released back in 2010 and...

Many of you probably use this trick all the time, but I haven’t heard of this magic double-dabble short cut before today. I wanted to quickly write it down so that I don’t forget it. Base-10 is ob...