United Technologies Automotive Inc.

United Technologies Corporation

Robert E LaBarre

Philip J Koopman, Jr

Alan Matthew Finn

Richard Hecht

The pseudorandom process iteratively applies a selected CRC encryption process on the information to be encrypted. The encryption process is selected by testing one of the digits comprising the number to be encrypted. A first encryption process is used if the tested digit is a 1; a second encryption process is used if the tested digit is a 0. The process is repeated a plurality of times, e.g. once for each digit in the number to be encrypted, resulting in a highly encrypted value that is not easily reverse engineered by chosen or known plaintext attack.

Pseudorandom composition-based cryptographic authentication process

The first and second devices exchange randomly generated messages that are used in a composition-based encryption/decryption process. At least one of the randomly generated messages is, itself, encrypted before transmission. The composition-based process (a cyclic redundancy code process, preferably enhanced with midcycle non-Galois Field operation) is embedded in both devices and not readily discernable by playback attack.

Random clock composition-based cryptographic authentication process and

A multiprocessor computing system having a plurality of processors 11-23 and a plurality of switches 31-43 is interconnected such that a single one of said switches 31-43 is between any pair of said processors 11-23.

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Willington, CT, United States of America

Robert E LaBarre