Biometrics — Can You Afford to Lose a Finger?
Jul 12, 2017
Biometric authentication has been attracting a lot of attention recently. Every day you see people deftly swiping their thumbs over their phones to unlock them using fingerprint recognition. Iris scanning technology is being introduced to India’s national biometric ID system. It’s the largest such system in the world—with over a billion users—and is used to […]
Ways to Manage Your SSH Keys and Identities
Feb 1, 2017
I wrote a series of blog posts a while ago about SSH authentication using cryptographic keys rather than passwords. I discussed why SSH keys provide easier authentication, how to set up an SSH key agent, and how to maintain multiple websites. There are two areas of security to consider regarding SSH. I think of them […]
How Will Vehicle-To-Everything (V2X) Communication Transform Your Car?
Jan 19, 2017
A casual mention of Vehicle to Everything, or V2X, in a mailing list, led me to a short article, and that led to much more. It made me aware of a project that may make huge changes to how we get around. Roads can measure cars in very limited ways today with inductive loops at […]
We Need Something Better Than Passwords, And We Already Have It
Sep 20, 2016
A technology called repeated hashing provides user authentication that can only be defeated by guessing the user’s secret or traveling back in time. Since the second is impossible, this is as good as user authentication security can get. Hashing, Again and Again In Learning Tree’s System and Network Security Introduction course we explain hash functions. […]
How To Manage Your Passwords With KeePassX
Sep 13, 2016
Last week I suggested a do-it-yourself approach to generating pass phrases. Using an available list of 80,489 4-to-6-character strings of words and word fragments, and randomly selecting five such strings, plus 5 digits, plus one of the 30 or so punctuation marks, that scheme could generate this many possible pass phrase strings: 804895 × 105 […]