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Moving target defense for a serial communications system

United States Patent

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11,133,927
September 28, 2021
View the Complete Patent at the US Patent & Trademark Office
A moving target defense scheme for a serial communications system is disclosed herein. A bus controller generates and broadcasts a nonce to remote terminals over a bus. The bus controller and the remote terminals generate a randomized sequence based upon the nonce and a shared secret that is shared between the bus controller and the remote terminals. The bus controller broadcasts first messages over the bus on first addresses that are derived from first portions of the randomized sequence. The remote terminals listen for the first messages that are broadcast over the bus on the first addresses. The bus controller broadcasts a shift message that causes the remote terminals to listen for second messages that are broadcast over the bus on second addresses that are derived from second portions of the randomized sequence.
16/ 353,039
March 14, 2019
1/1
H04L 9/08 (20060101)G06F 21/60 (20130101)G06F 13/42 (20060101)G06F 13/16 (20060101)H04L 29/06 (20060101)G06F 7/58 (20060101)
STATEMENT OF GOVERNMENTAL INTEREST This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The U.S. Government has certain rights in the invention.