Title:
INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM
Document Type and Number:
WIPO Patent Application WO/2018/073921
Kind Code:
A1
Abstract:
The objective of the invention is to prevent time falsification. In response to reception of a document conversion request from which a text document can be identified, from a terminal device 10 via a network N, a server device 20 acquires the current time as a text document creation time. The server device 20 then generates a time conversion character code sequence indicating the text document creation time by assigning different time conversion character codes to the respective numbers constituting a number sequence indicating the text document creation time. The server device 20 then stores the time conversion character code sequence indicating the text document creation time in a storage device 30.
Inventors:
TOYOIZUMI HIROSHI (JP)
AZUMA YOUICHI (JP)
TAKAHASHI TETSUYA (JP)
TAKAMI MAYA (JP)
AZUMA YOUICHI (JP)
TAKAHASHI TETSUYA (JP)
TAKAMI MAYA (JP)
Application Number:
PCT/JP2016/081026
Publication Date:
April 26, 2018
Filing Date:
October 19, 2016
Export Citation:
Assignee:
A T COMMUNICATIONS CO LTD (JP)
International Classes:
H04L9/32; G09C1/02
Foreign References:
| JP5956092B1 | 2016-07-20 |
Other References:
YUKIO TAKAHASHI: "The study for the position Authentication and the Security of Location Information", IPSJ SIG NOTES, vol. 71, 1 July 2007 (2007-07-01), pages 1 - 6
Attorney, Agent or Firm:
AMEMIYA Yasuhito (JP)
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