ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,766, issued on Sept. 22, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Lightweight encryption" was invented by Hariharan Anantharaman (Redmond, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A lightweight encryption method is disclosed, designed to reduce computational resource demands on devices such as IoT devices and mobile phones. The method utilizes Shamir's three-pass protocol for key exchange, converting the encryption key into a signed digit number using an odd base. The message is broken into portions, with each portion encrypted by applying a sequence of non-commutative functions based on the signed digit rep...