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:
Jan. 03, 2017
Filed:
Sep. 28, 2012
Vladimir Y. Kolesnikov, Jersey City, NJ (US);
Vladimir Y. Kolesnikov, Jersey City, NJ (US);
Alcatel Lucent, Boulogne-Billancourt, FR;
Abstract
Secure private database querying on a database for a query having a formula evaluation on at least two keywords A and B comprises: a server receiving a Bloom filter tree comprised of encrypted Bloom filters of encrypted keywords from the database, wherein each Bloom filter in the Bloom filter tree is separately masked by a random mask pad P; receiving an encrypted version of the keywords A and B from the client; and obtaining masked Bloom filter indices for the keywords A and B. The client and server participate in secure function evaluation (SFE) with the client. The server has an input comprising the masked Bloom filter indices for the keywords A and B and the client has an input comprising the random mask pad P. The secure function evaluation comprises: removing the random mask pad P from the masked Bloom filter indices input by the server; determining if there is a matching Bloom filter for each of the keywords A and B; and applying the formula evaluation to determine if the formula is satisfied.