The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2026
Filed:
Jul. 05, 2022
International Business Machines Corporation, Armonk, NY (US);
Debapriya Chatterjee, Austin, TX (US);
Silvia Melitta Mueller, St. Ingbert, DE;
Maarten J. Boersma, Holzgerlingen, NL;
Martijn Diede Berkers, Boeblingen, DE;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A processor includes an instruction fetch unit that fetches instructions to be executed, an architected register file including a plurality of registers for storing source and destination operands, and an execution unit for executing a key-generating instruction. The execution unit includes a key generation circuit that, responsive to a key-generating instruction, iteratively applies a cryptographic function to a sequence of iteration inputs beginning with an encryption key obtained from the architected register file and stores, within the architected register file, a decryption key obtained from at least one iteration of the cryptographic function.