ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,494,896, issued on Dec. 9, was assigned to Infineon Technologies AG (Neubiberg, Germany).
"Proof-of-work based on block cipher" was invented by Veit Kleeberger (Munich) and Alexander Zeh (Munich).
According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure creates a method for generating a proof-of-work. In the method, a data block is associated with a nonce. Then, the data block associated with the nonce is encrypted into a tag using a secret key. In a further step it is checked whether the tag meets a predetermined criterion. If the tag does not meet the predetermined criterion, the nonce is varied and the association and encryption are repeated until ...