ALEXANDRIA, Va., July 23 -- United States Patent no. 12,368,592, issued on July 22, was assigned to ASSA ABLOY AB (Stockholm).
"Cryptographic signing of a data item" was invented by Frans Lundberg (Saltsjobaden, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "it is provided a method for performing a cryptographic signing operation of a data item. The method is performed in a server and comprises the steps of: receiving, from a smartcard reader, a request for a data item to be collectively signed, the request comprising an indication of the data item and an identifier of a smartcard, wherein the collective signing requires the use of both a smartcard secret key and a server secret key for the collective...