ALEXANDRIA, Va., May 5 -- United States Patent no. 12,621,139, issued on May 5, was assigned to Avago Technologies International Sales Pte. Ltd. (Singapore).
"Mac header protection with preexisting keys" was invented by Nehru Bhandaru (San Jose, Calif.), Thomas Derham (San Diego) and Wentong Chen (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The technical solutions are directed to MAC address protection for frame integrity verification. A sender device can compute, using a temporal key (TK) programmed in hardware, a first key for a body of a frame and a second key for a header of the frame, different from the first key. The sender can encrypt the body of the frame at a machine access contr...