Author's Latest Posts


Demand For Timing Innovation Grows


The semiconductor industry has begun exploring a range of timing options as demand for increased performance and more features exceeds the ability to design chips using the same techniques and technology that have been relied on for decades. Like many elements in computing, timing is a hierarchy or stack. It includes everything from partitioning AI computations into multiple parts and assemb... » read more

How Secure Are RISC-V Chips?


When the Meltdown and Spectre vulnerabilities were first uncovered in 2018, they heralded an industry-wide shift in perspective regarding processor security. As the IBM X-Force Threat Intelligence Index put it the following year, "2018 ushered in a new era of hardware security challenges that forced enterprises and the security community to rethink the way they approach hardware security." R... » read more

Testing Chips For Security


Supply chains and manufacturing processes are becoming increasingly diverse, making it much harder to validate the security in complex chips. To make matters worse, it can be challenging to justify the time and expense to do so, and there’s little agreement on the ideal metrics and processes involved. Still, this is particularly important as chip architectures evolve from a single chip dev... » read more

Chip Backdoors: Assessing the Threat


In 2018, Bloomberg Businessweek made an explosive claim: Chinese spies had implanted backdoors in motherboards used by some high-profile customers, including the U.S. Department of Defense. All of those customers issued strongly worded denials. Most reports of hardware backdoors have ended up in exchanges like these. There are allegations and counter-allegations about specifics. But as hardw... » read more