AMD Platform Security Processor

The AMD Platform Security Processor (PSP), also known as the AMD Secure Processor, is an autonomous processor embedded on most modern AMD CPU's since 2013. The PSP has full access to memory and is capable of running without the main CPU cores being active.

AMD Platform Security Processor

Basic Information
Release Year	2013
Product Type	Surveillance, Security, Hardware, Computers, Firmware
In Production	Yes
Official Website	https://www.amd.com/en.html

AMD has not provided much information about the PSP, but several features are know, including:

• CPU initialization
• Hardware-accelerated cryptography
• Hardware/software integrity verification (TPM)
• Facilitating Secure Encrypted Virtualization (SEV)

Concerns

AMD has denied requests to open-source the software running on the PSP. This means that the inner workings of the PSP cannot be independently verified and bugfixes can only be performed by AMD. This is an example of "security through obscurity", which has been criticized for taking away consumer rights.

Vulnerabilities

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See also

• Intel Management Engine