ALEXANDRIA, Va., June 17 -- United States Patent no. 12,316,777, issued on May 27, was assigned to Siemens AG (Munich).

"Method for issuing a cryptographically protected certificate of authenticity for a user" was invented by Rainer Falk (Poing, Germany) and Steffen Fries (Baldham, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various embodiments of the teachings herein include a method for issuing a cryptographically protected certificate of authenticity for a user comprising: providing a public user key; providing a public client key for a client, the public client key assigned to the user; forming a request including the public user key, wherein the public user key is protected with the aid of a ...