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:
Sep. 19, 2023
Filed:
Jan. 10, 2020
Duality Technologies, Inc., Maplewood, NJ (US);
Arina Shainski, Ramat Hasharon, IL;
Marcelo Blatt, Modiin, IL;
Duality Technologies, Inc., Maplewood, NJ (US);
Abstract
A system and method for secure searching in a semi-trusted environment by comparing first and second data (query and target data). A first data provider may map first secret data to a first plurality of tokens using a token codebook, concatenate the first plurality of tokens to generate a first token signature, and homomorphically encrypt the first token signature. A second data provider may map second data to a second plurality of tokens using the token codebook, concatenate the second plurality of tokens to generate a second token signature, and compare the homomorphically encrypted first token signature and an unencrypted or homomorphically encrypted second token signature to generate a homomorphically encrypted comparison. A trusted party may decrypt the homomorphically encrypted comparison, using a secret homomorphic decryption key, to determine if the token signatures match or not respectively indicating the search query is found or not in the target data.