US Patent Issued to Silicon Laboratries on May 20 for "Apparatus for cryptographic operations on information and associated methods" (Norwegian Inventor)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,309,256, issued on May 20, was assigned to Silicon Laboratries Inc. (Austin, Texas).

"Apparatus for cryptographic operations on information and associated methods" was invented by Steven Cooreman (Nittedal, Norway).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus includes an encryption circuit. The encryption circuit includes a block function circuit to generate a plurality of blocks of output data. A block of output data having an initial sequence number includes more state than used by a ChaCha20 block function. A first part of a keystream is generated from a block of output data having the initial sequence number. A second part of the keyst...