Network on chip (noc) memory addressable encryption and authentication

Abstract

Techniques for network-on-chip (NoC) memory addressable encryption and authentication. In an embodiment, NoC circuitry includes NoC routing circuitry, memory circuitry that stores a security parameter, and security circuitry that secures (e.g., encrypts and/or authenticates) a payload based on the security parameter. The security circuitry may secure the payload before the payload is packetized for transmission through the NoC, after the payload is de-packetized for output to an endpoint, or as the payload transits the NoC. The security circuitry may be centralized or distributed amongst access points of the NoC. Distributed security circuitry may exchange a security parameter over a secure link of the NoC circuitry. The security circuitry may include decryption circuitry that decrypts a response from a first endpoint before the response is packetized for transmission through the NoC, after the response is de-packetized for output to a second endpoint, or as the response transits the NoC.