so.cl

Rascals are always sociable, and the chief sign that a man has any nobility in his character is the little pleasure he takes in others company. Arthur Schopenhauer


Reversing the AMD Secure Processor (PSP)

AMD’s Secure Processor (formerly known as Platform Security Processor or “PSP”) is a very interesting piece of technology that is critical to the operation of all modern-day AMD CPUs. There’s also very little public information about it and because of that, it’s commonly misunderstood and fantasized about. Not only is it at the top of the chain of trust, but it’s also responsible for initializing the CPU and facilitating attestation (TPM), hardware-accelerated crypto, and Secure Encrypted Virtualization (SEV) technology. Reversing the AMD Secure Processor (PSP) part 1 and part 2

April 23, 2023
#security ▪ #amd