scope:

The security protections described in the Introduction are necessary but not sufficient to meet advanced use cases of a PC. This document provides the requirements for an additional block called as Replay Protection Monotonic Counter. (RPMC) Replay Protection provides a building block towards providing additional security. This block requires modifications in both a Serial Flash device and Serial Flash Controller. The standard defines new commands for Replay Protected Monotonic Counter operations. A device that supports RPMC can support these new commands as defined in this standard.