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:
Nov. 02, 2021
Filed:
Apr. 09, 2020
International Business Machines Corporation, Armonk, NY (US);
Tamas Visegrady, Zurich, CH;
Silvio Dragone, Olten, CH;
Michael Charles Osborne, Richterswil, CH;
Elaine R. Palmer, Hanover, NH (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A key identifier that identifies a cryptographic key is transmitted to a cryptographic coprocessor. A first set of attributes is received from the cryptographic coprocessor. The first set of attributes and a second set of attributes are serialized into a first sequence of attributes. The first sequence of attributes are stored to an attribute frame. One or more attributes in the second set of attributes are associated with the cryptographic key and originate from a key attribute storage of the key management system. The second set of attributes is different from the first set of attributes. The first sequence of attributes is transmitted to the cryptographic coprocessor. A first message authentication code (MAC) calculated from the first sequence of attributes is received from the cryptographic coprocessor. The attribute frame is verified by comparing the first MAC, or a value derived from the first MAC, to a reference value.