ALEXANDRIA, Va., July 15 -- United States Patent no. 12,664,259, issued on June 23, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Scalar masking countermeasure" was invented by Mojtaba Bisheh Niasar (Ithaca, N.Y.) and Bharat S. Pillilli (El Dorado Hills, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Generally discussed herein are devices, systems, and methods for secure elliptic curve cryptography (ECC) operation. A circuit can include a multiplier coupled to receive a radix of a group order and a radix of a random number and generate a product based on the group order and the random number, a first adder coupled to receive the product and contents of an accumulator and genera...