SRAM PUF Provides an Unclonable Security Mechanism

By Rich Nass

Contributing Editor

Embedded Computing Design

October 28, 2020

Story

SRAM PUF Provides an Unclonable Security Mechanism

In practice, an unclonable identity solution is generated from within the PUF SRAM chip. Note this can be easily provisioned and implemented at low cost within the IoT device.

Obviously your IoT devices need to be secure. Unfortunately, there are many ways to do that, so you need to pick the one (or ones) that best suit your needs. One of those methods is by using SRAM PUF, or physical unclonable function. Such a solution hails from Intrinsic-ID.

With PUF, your security is starting right at the semiconductor level. By leveraging the uniqueness that is intrinsic to every chip, you have the ability to protects the confidentiality and integrity of your data and your IoT system.

With this method, your cryptographic keys are derived from the PUF root key. This root key is never stored but recreated from the PUF when needed, providing a significantly higher security level.

Note this can be easily provisioned and implemented at low cost within the IoT device.

Rich Nass is a regular contributor to Embedded Computing Design. He has appeared on more than 500 episodes of the popular Embedded Executive podcast series, and is a regular contributor to the Embedded Insiders podcast.

Rich has been in the engineering OEM industry for more than 35 years, and is a recognized expert in the areas of embedded computing, Edge AI, industrial computing, the IoT, and cyber-resiliency and safety and security issues. He writes and speaks regularly on these topics and more.

Rich is currently the Liaison to Industry for the Embedded World North America Exhibition and Conference, and has held similar positions with the global Embedded World Conference and Exhibition.

Previously, Rich was the Brand Director for UBM’s award-winning Design News property. Prior to that, he led the content team for UBM Canon’s Medical Devices Group, as well all custom properties and events.  In prior stints, he led the Content Team at EE Times, handling the Embedded and Custom groups and the TechOnline DesignLine network of design engineering web sites.

Nass holds a BSEE degree from the New Jersey Institute of Technology.

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