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:
Apr. 03, 2007
Filed:
Oct. 31, 2001
Erik Riedel, San Francisco, CA (US);
Christos Karamanolis, Sunnyvale, CA (US);
Mahesh Kallahalla, Palo Alto, CA (US);
Ram Swaminathan, Cupertino, CA (US);
Erik Riedel, San Francisco, CA (US);
Christos Karamanolis, Sunnyvale, CA (US);
Mahesh Kallahalla, Palo Alto, CA (US);
Ram Swaminathan, Cupertino, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A security module is configured to provide an owner the capability to differentiate between users. In particular, the security module is configured to generate an asymmetric read/write key pair for respectively decrypting/encrypting data for storage on a disk. The owner of the file may distribute the read key of the asymmetric key pair to a group of users that the owner has assigned read-permission for the encrypted data.