SRAM PUF Provides an Unclonable Security Mechanism
October 28, 2020
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.