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Title:
DATA AUTHENTICITY VERIFICATION SYSTEM AND DATA AUTHENTICITY VERIFICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/013219
Kind Code:
A1
Abstract:
A data authenticity verification system (10): calculates, at different timing, a hash value A and a hash value B from evidence data sent from a terminal device 12; and registers evidence data by storing same in a storage device (16) if hash values A and B are the same. If the evidence data is altered between when the evidence data is received from the terminal device (12) to when the evidence data is to be registered in the storage device, hash value A and hash value B will differ and the evidence data will not be recorded.

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Inventors:
NAMIKI HARUHIKO (JP)
KAWAMURA TAKUMA (JP)
TANAKA ATSUYA (JP)
MURAKAMI TAKAKAZU (JP)
OKABE TATSUYA (JP)
Application Number:
PCT/JP2022/021858
Publication Date:
February 09, 2023
Filing Date:
May 30, 2022
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
H04L9/32; G06F21/64
Foreign References:
JP2019082967A2019-05-30
JP2010081372A2010-04-08
JP2015222552A2015-12-10
JP2010178289A2010-08-12
JP2021082946A2021-05-27
Attorney, Agent or Firm:
SUZUKI Mamoru et al. (JP)
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