LPC55Sx PUF IP block vendor

[laualala]

Hello!

I am evaluating the LPC55Sx series MCU's for a company. More specifically the PUF technology inside the MCU. 

There is very limited amount of information available about the vendor of the PUF IP block in that device. I have been able to find out that the PUF IP block in LPC55Sx is most probably provided by Intrinsic ID and most probably is the Quiddikey series 300? 

Now the question is since Intrinsic ID was merged in to Synopsys. Synopsys seems to offer two variants of the PUF IP block Synopsys PUF Base/Premium. Which one is the LPC55Sx rocking? I need to be able to provide the certifications and regulations that the PUF IP is holding in the LPC55Sx. 

Thanks in advance!

[xavier65frans]

Hello,

NXP’s LPC55Sx microcontrollers implement an SRAM‑based PUF (Physical Unclonable Function) as part of their hardware security foundation. This PUF uses the inherently random power‑up values of dedicated SRAM to produce a device‑unique root key and key material without ever storing a secret key in non‑volatile memory; instead, NXP’s PUF controller generates key codes and reconstructs keys at runtime using activation codes and the SRAM fingerprint. The LPC55Sx documentation describes this PUF controller, its generation of unique 256‑bit root keys from SRAM fingerprints, and its integration with AES and PRINCE cryptographic engines for secure key handling and boot processes.

Best Regards