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:
Mar. 05, 2019
Filed:
Jul. 28, 2016
Emc Corporation, Hopkinton, MA (US);
Prashant Pogde, Sunnyvale, CA (US);
Fabiano C. Botelho, Sunnyvale, CA (US);
Nitin Garg, Santa Clara, CA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
In one embodiment, in response to a request received from a client for retrieving a data object stored in a storage system, a root key is obtained from the request. The data object is represented by metadata in a hierarchical structure having a plurality of levels. Each level includes a plurality of nodes and each node being one of a root node, a leaf node and an intermediate node. The hierarchical structure of metadata associated with the data object is traversed in a top-down approach to decrypt each of a plurality of nodes in the hierarchical structure using a key provided from its parent node, starting from the root node to the leaf nodes, including decrypting the root node using the root key. Decrypted data associated with the plurality of nodes is transmitted to the client.