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. 18, 2025
Filed:
Dec. 08, 2022
National Applied Research Laboratories, Hsinchu, TW;
Zheng-Yao Su, Hsinchu, TW;
Ming-Chung Tsai, Hsinchu, TW;
National Applied Research Laboratories, Hsinchu, TW;
Abstract
The present inventive concept discloses a method of designing a one-way computational system in QAP-based homomorphic encryption applied to the n-qubit encode operations of a k-qubit action M for public-key and semi-public-key schemes respectively, n≥k, wherein the method comprises: preparing a tensor-product operator=I⊗M=and decomposing it into two parts, whereinis composed of elementary gates, and let=and=; providing a correction operator,=for public-key and=Ifor semi-public-key, and an encoding operator, QV=WWfor public-key and Q=WWfor semi-public-key, both composed of elementary gates; providing appropriate permutations P, Pand P, while P=Pfor semi-public-key, to obey the nilpotent condition PWP=I for the identity operator; through process of merging operators according to sets of identities of gates, including Id-GateELIM, Id-GateEx and Id-GateREP, there obtain the mixed encode for public-key scheme, U=PQV=(PWWP)(PP)(PWWP) (PW), and that for semi-public key, U=PMQ=(PWWP)(PW) with n=k,==Iand P=P.