The National Institute of Standards and Technology (NIST) is recommending a new algorithm for authenticating digital data for federal agencies. Called CMAC (cipher-based message authentication code), ...

The main purpose of message authentication is to prevent manipulation of the message which is sent. MAC stands for Message Authentication Code which is also known as “Integrity check value” or ...

First, a confession. When David and I started writing this series, we envisioned it would be completed after the third part. It appears we were a bit short-sighted. An astute reader challenged us to ...

The startling recent announcement that the SHA-1 hash function was not as secure as previously believed also raised interesting questions in the world of one-time password (OTP) technology, since the ...