US Patent Issued to NEC on March 17 for "Fast post-quantum cryptographic sortition" (German, Spanish Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,580,751, issued on March 17, was assigned to NEC Corp. (Tokyo).

"Fast post-quantum cryptographic sortition" was invented by Claudio Soriente (Heidelberg, Germany) and Dario Fiore (Pozuelo de Alarcon, Spain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for cryptographic sortition among a group of parties includes committing, by a first party, to a set of n party-specific secret keys k1, kn for a block cipher E and obtaining, by the first and a second party, a common input x and an index r. The method further includes encrypting, by the first party, the input x with the r-th key kr of the committed keys k1.., kn, thereby generating an output y1...