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. 17, 2024
Filed:
Oct. 03, 2022
Duality Technologies, Inc., Maplewood, NJ (US);
Daniele Micciancio, San Diego, CA (US);
Yuriy Polyakov, Fair Lawn, NJ (US);
Zeyu Liu, Long Island City, NY (US);
Duality Technologies, Inc., Maplewood, NJ (US);
Abstract
Systems and methods for improving homomorphic encryption are provided. A processor receives an encrypted ciphertext; splits the encrypted ciphertext into a plurality of smaller digits; applies a homomorphic floor function to clear a least significant bit from a current smaller digit; scales down the encrypted ciphertext, using modulus switching, thereby changing the ciphertext modulus to a new modulus; applies a bootstrapping procedure for a sign evaluation function to determine a sign of the scaled down encrypted ciphertext; and transmits the sign with the ciphertext to a server for subsequent use.