ALEXANDRIA, Va., April 7 -- United States Patent no. 12,598,177, issued on April 7, was assigned to Dell Products LP (Round Rock, Texas).

"Three-dimensional density key authentication" was invented by Victor Salamon (Edmonton, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "Three-dimensional density key authentication employs a solid three-dimensional key, opaque to visible light, having varying three-dimensional density. A first three-dimensional reader-sensor scans the three-dimensional key and creates a first digital density map of the three-dimensional key, or/or a hash thereof. An authentication server Information Handling System (IHS), operatively coupled to the first three-dimensional reader-sen...