Invention Grant
- Patent Title: Secure computation method, secure computation system, secure computation server, registrant terminal, user terminal and program
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Application No.: US15110645Application Date: 2014-12-05
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Publication No.: US10218495B2Publication Date: 2019-02-26
- Inventor: Teruko Miyata , Hiroyoshi Takiguchi , Naoto Kiribuchi , Koji Chida , Dai Ikarashi , Gembu Morohashi , Hitoshi Fuji , Shigeru Kayaguchi
- Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- Applicant Address: JP Chiyoda-ku
- Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- Current Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2014-013081 20140128
- International Application: PCT/JP2014/082220 WO 20141205
- International Announcement: WO2015/114947 WO 20150806
- Main IPC: G06F12/14
- IPC: G06F12/14 ; H04L9/06 ; H04L9/00 ; G06F21/45 ; H04L9/08 ; H04L9/32
Abstract:
Data processing is performed while personal information is kept concealed. A registrant terminal splits a registration input password and allocates the split pieces to secure computation servers. The secure computation servers verify whether the password matches. The registrant terminal splits target data and allocates the data shared values to the secure computation servers. The secure computation servers store the data shared values. A user terminal splits a utilization input password and allocates the split pieces to the secure computation servers. The secure computation servers verify whether the password matches. The user terminal sends a data processing request to the secure computation servers. The secure computation servers execute secure computation of the data shared values to generate processing result shared values. The user terminal recovers the processing result from the processing result shared values.
Public/Granted literature
Information query
