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:
Dec. 09, 2014
Filed:
Sep. 06, 2012
Umesh Shankar, New York, NY (US);
Daniel Belov, San Francisco, CA (US);
Umesh Shankar, New York, NY (US);
Daniel Belov, San Francisco, CA (US);
Google Inc., Mountain View, CA (US);
Abstract
Techniques for encrypting documents in a search index may include: receiving a document for inclusion in a search index of a search system, where the document has an associated access control list (ACL), and the ACL includes data for use in restricting access to the document to users of the search system having credentials that match corresponding data in the ACL; encrypting the document using a first key to produce an encrypted document; generating a wrapped key for the document by encrypting both the first key and the ACL using a second key; and storing, along with the search index, the encrypted document in association with the wrapped key and an identifier for the document.