| Abstract: | 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. |