System and method for transmitting a message in a communication network

Abstract

A system and method for securely transmitting a message within a communication network is described. The system includes a first controller being in communication with a second controller. A freshness value (FV) manager generates a first FV, wherein the first FV is arranged as an N-bit integer. The first controller generates a first message that includes the first FV. The first controller communicates the first message to the second controller. The second controller receives the first message from the first controller, and evaluates the first FV of the first message. The second controller generates an acceptance window, which is defined as a range of N-bit integers between a maximum FV and a minimum FV. The second controller permits further evaluation of the first message when the first FV is within the acceptance window.

CPC Classifications