Hi
I just stumbled about SRAM PUF which could solve me a huge problem in IoT provisioning certificates.
https://www.intrinsic-id.com/products/spartan/ sounds very promising. But I see there are patents involved.
Does Nordic have any plans to provide this technology?
As I understand this technology it could be very easily applied to nRF5 products and it would give us extremely well protected certificates in a very cost effective way.
best regards
Peter Zankl
Hi Peter
I know the random generation algorithm we use is FIPS compliant, so that should give the 'freaks' some indication of its quality 
If storing a key in flash is an option you could also consider storing a unique, private key in flash as part of your production programming stage. This might slow down the production process slightly, but would at least give you the capability to add any sort of key you like into the flash.
A sophisticated hacker can read out the data from the flash by decapping the chip, but if the keys are unique to each device then this should not be a large issue.
Best regards
Torbjørn
