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:
Oct. 19, 2010
Filed:
Sep. 07, 2006
Paul Merrill Greco, Tucson, AZ (US);
Melanie Jean Sandberg, Tucson, AZ (US);
Scott Jeffrey Schaffer, Tucson, AZ (US);
Paul Merrill Greco, Tucson, AZ (US);
Melanie Jean Sandberg, Tucson, AZ (US);
Scott Jeffrey Schaffer, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Provided are a method, system, and article of manufacture, wherein a first write only register is maintained in an encryption engine of a cryptographic unit. A second write only register is maintained in a decryption engine of the cryptographic unit. A cryptographic key is written in the first write only register and the second write only register, wherein the cryptographic key is inaccessible for reading from any entity that is external to the cryptographic unit.