ALEXANDRIA, Va., March 19 -- United States Patent no. 12,254,440, issued on March 18, was assigned to eBay Inc. (San Jose, Calif.).
"Blockchain-based authentication and authorization" was invented by Constanza Maria Heath (Cannon Beach, Ore.) and Ethan Benjamin Rubinson (Santa Clara, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosed technologies include receiving a request from a second computing device to verify ownership of a blockchain address. A challenge content is generated and sent to the requestor. A signature is received comprising a hash of the challenge content generated using a private key. A public key corresponding to the private key is obtained, and the signature is validated...