Invention Grant
US09100419B2 Long-term signature terminal, long-term signature server, long-term signature terminal program, and long-term signature server program
有权
长期签名终端，长期签名服务器，长期签名终端程序和长期签名服务器程序
- Patent Title: Long-term signature terminal, long-term signature server, long-term signature terminal program, and long-term signature server program
- Patent Title (中): 长期签名终端，长期签名服务器，长期签名终端程序和长期签名服务器程序
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Application No.: US13985582Application Date: 2011-12-08
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Publication No.: US09100419B2Publication Date: 2015-08-04
- Inventor: Shinichi Murao
- Applicant: Shinichi Murao
- Applicant Address: JP
- Assignee: SEIKO INSTRUMENTS INC.
- Current Assignee: SEIKO INSTRUMENTS INC.
- Current Assignee Address: JP
- Agency: Adams & Wilks
- Priority: JP2011-037382 20110223
- International Application: PCT/JP2011/078449 WO 20111208
- International Announcement: WO2012/114603 WO 20120830
- Main IPC: H04L29/06
- IPC: H04L29/06 ; H04L9/32
Abstract:
A long-term signature system acquires electronic signature data for each of a series of pieces of original data, transmits the acquired electronic signature data to a predetermined server, and acquires a time stamp issued for the electronic signature data from the predetermined server. Verification information is acquired for verifying the electronic signature data and the time stamp from a predetermined server. Long-term signature target data for confirming unfalsification of the original data, the electronic signature data, the time stamp, and the verification information is acquired for each of the pieces of original data. The acquired long-term signature target data is transmitted to a predetermined server, and long-term signature data having an archive time stamp issued for the long-term signature target data applied thereto is acquired.
Public/Granted literature
Information query
