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:
Jun. 10, 2014
Filed:
Dec. 23, 2010
Helen Raizen, Jamaica Plain, MA (US);
Michael Emerald Bappe, Loveland, CO (US);
Edith Epstein, Arlington, MA (US);
Atul Kabra, New Delhi, IN;
Cesareo Contreras, Northbridge, MA (US);
Assaf Natanzon, Ramat Gan, IL;
Harold Martin Sandstrom, Belmont, MA (US);
Helen Raizen, Jamaica Plain, MA (US);
Michael Emerald Bappe, Loveland, CO (US);
Edith Epstein, Arlington, MA (US);
Atul Kabra, New Delhi, IN;
Cesareo Contreras, Northbridge, MA (US);
Assaf Natanzon, Ramat Gan, IL;
Harold Martin Sandstrom, Belmont, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A host in an encrypted data storage system sends encryption metadata associated with an encrypted logical volume (LV) from a key controller module to an encryption endpoint via a storage I/O stack. The encryption metadata identifies an encryption key and encrypted regions of the LV, and the sending results in establishment of one or more shared associations between the key controller module and the encryption endpoint which associates the encrypted LV with the encryption metadata for the encrypted LV. A data storage operation is performed on the encrypted LV by sending a data storage command from the key controller module to an encrypted region of the encryption endpoint via the storage I/O stack. The encryption endpoint uses the encryption metadata associated with the encrypted LV to cryptographically process data of the data storage operation.