ALEXANDRIA, Va., April 15 -- United States Patent no. 12,602,453, issued on April 14, was assigned to NAGRAVISION SARL (Cheseaux-sur-Lausanne, Switzerland).
"Media authentication" was invented by Christophe Buffard (Phoenix) and Laura Buffard (Phoenix).
According to the abstract* released by the U.S. Patent & Trademark Office: "A content owner registers with an identity authority by providing information about the content owner and a public key of a public/private key pair. The content owner registers content to the identity authority and signs the multiple segments of the content with the private key of the public/private key pair. A system that receives the signed content determines an indicated content owner of the received media conte...