ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,738, issued on Dec. 16, was assigned to Cryptography Research Inc. (San Jose, Calif.).

"Protection of cryptographic substitution-permutation networks from fault injection attacks" was invented by Michael Alexander Hamburg (Laguna Beach, Calif.), Helena Handschuh (Palo Alto, Calif.), Mark Evan Marson (Carlsbad, Calif.) and Winthrop John Wu (Pleasanton, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Aspects of the present disclosure involve a method and a system to perform the method to obtain a cryptographic output of a plurality of rounds of a cipher, by performing a plurality of modified rounds of the cipher, each of the modified rounds comp...