Patent ID: 8949606
Filing Date: 2015-02-03
Classification: H04L

Abstract:
1. A method for transmitting a message between a transmitter and a receiver of a plurality of transmitters and receivers, comprising: using a message counter to count messages and produce a message counter value; assigning, by a microprocessor, to each transmitter/receiver path a corresponding sequence of identifiers unique to the transmitter/receiver path; for each message, dynamically selecting, by the microprocessor, an identifier from the sequence of identifiers corresponding to the transmitter/receiver path, the selected identifier being chosen based on the message counter value, wherein each message counter value is a different identifier from the sequence of identifiers; using, by the microprocessor, the selected identifier to calculate a checksum for authentication; and validating, by the microprocessor, the message counter value based on a previous message counter value and a time difference from production of the previous message counter value to production of the current message counter value, wherein the sequence of identifiers is stored in the transmitter and the receiver prior to the selection of the identifier from the sequence of identifiers.