This weekend, Rob and I had been testing the use of hardware keys to secure ssh sessions, especially for back-end console access and certain administrative functions. Since the hardware keys are a special case, and cannot be added to the ssh-agent, we were slinging around a fair number of command …

Over the past few weeks, RS and I have noticed an increasing number of unexplained failures logging in over SSH with both manual and automated means. On most of the servers it was just an inconvenience, but as it started to become more frequent, it became a significant issue for …

There's an excellent article, Keeping Secrets, on medium today (originally from the November/December 2014 issue of Stanford Magazine) about the conflict between academic work on cryptography and the NSA's role in national security. Most of the focus is on what happened and not on who was right or wrong …