Invention Grant
- Patent Title: Homomorphic inference device, homomorphic inference method, computer readable medium, and privacy-preserving information processing system
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Application No.: US16652850Application Date: 2017-11-27
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Publication No.: US11522671B2Publication Date: 2022-12-06
- Inventor: Ryo Hiromasa
- Applicant: Mitsubishi Electric Corporation
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- International Application: PCT/JP2017/042463 WO 20171127
- International Announcement: WO2019/102624 WO 20190531
- Main IPC: H04L9/00
- IPC: H04L9/00 ; H04L9/06 ; H04L9/30 ; G06F21/60 ; G06F21/71 ; G06N3/04 ; G06N5/04
Abstract:
A range determination unit (412) takes as input an input ciphertext Ci resulting from encrypting input data, determines whether a value obtained from the input data is within a reference range, and generates a range ciphertext aj depending on a determined result. A result generation unit (413) performs a homomorphic operation on the range ciphertext aj generated by the range determination unit (412), so as to generate a result ciphertext D of a result of performing inference including a non-polynomial operation on the input data. An output unit (414) outputs the result ciphertext D.
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