From time to time when talking about security, it is useful to look at the big picture, but not to further lament the imminent collapse of the sky. We all know that the problem is big and we’re really not on top of it. A more productive discussion would be about what we can do to reduce the scope of the problem. And that has to start … Read More
Author: Bernard Murphy
Supernovae and Safety
Whenever we push the bounds of reliability in any domain, we run into new potential sources of error. Perhaps not completely new, but rather concerns new to that domain. That’s the case for Single Event Upsets (SEUs) which are radiation-triggered bit-flips, and Single Event Transients (SETs) which are radiation-triggered pulses… Read More
Domain Crossing Verification Needs Continue to Grow
Clock domain crossing (CDC) analysis has been around for many years, initially as special checks in verification or static timing analysis, but it fairly quickly diverged into specialized tools focused just on this problem. CDC checks are important because (a) you can lose data or even lock up at, or downstream of a poorly-handled… Read More
True Random Number Generation
Random numbers are central to modern security systems. The humble password, perhaps the least profound application, is encrypted and verified against using SHA or MD algorithms with a random number salt. You probably remember a college class on how to generate pseudo-random numbers algorithmically, some very sophisticated.… Read More
In Low Voltage Timing, the Center Cannot Hold
When I started discussing this topic with Isadore Katz, I was struggling to find a simple way to explain what he was telling me – that delay and variance calculations in STA tools are wrong at low voltage because the average (the center) of a timing distribution shifts from where you think it is going to be. He told me that I’m not alone… Read More
When Good Standards Get Lost – the UVM Register Model
Some time ago I wrote a DeepChip viewpoint on DVCON 2014 in which I praised a Mentor paper “Of Camels and Committees”. The authors argued that while the UVM standards committee had a done a great job in the early releases, the 1.2 release was overloaded with nice-to-have features with questionable value for a standard, particularly… Read More
Privacy – the Other Face of Security
Security gets a lot of tech press, privacy not so much. A lot of the problem is that while we each know intuitively what we mean by privacy, pinning down an actionable definition is surprisingly tricky, especially when we require that it not intrude in other ways on our rights. Privacy rights are not absolute (you don’t have … Read More
VW at CES – a Mea Culpa and a Bid for Redemption
There must be few less enviable jobs right now than Chairman and CEO of VW. According to Dr. Herbert Diess who has that dubious honor, the VW board debated whether they should attend CES this year and decided that on balance it was better to be visible, face the music and present their technology progress and visions than to lay low.… Read More
My Choice for Coolest Thing from CES 2016 (Day 1)
I’ll admit up-front I’m cheating. I’m writing this from the comfort of my home office without having to go anywhere near the CES madness (I was there last year; 170,000 people packed into the center of Las Vegas, block-wrapping lines to get taxis, never again). I’m relying instead on the Wired preview of the first day and what… Read More
More Medical Tech –Smart Bandages for Wound Management
I have a bias (as you may have noticed) for solutions in a domain that take advantage of technology but are developed within that domain. A recently example is intelligent bandages, developed at Massachusetts General Hospital, Harvard, Purdue and several other research centers. The purpose of such a bandage is to monitor a wound… Read More
Alchip Technologies Sets Another Record