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Legally Authorized and Unauthorized Digital Evidence

  • Hiroshi Yoshiura
  • Kunihiko Miyazaki
  • Shinji Itoh
  • Kazuo Takaragi
  • Ryoichi Sasaki
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2845)

Abstract

With the electronic signature law and related laws now being put into effect, evidence-making based on digital signatures is about to come into widespread use in society. Methods for making digital evidence have not been established, however, for several important areas such as long-term maintenance of digital evidence. The authors believe that evidence can be basically classified into that which is legally authorized and that which is not, and that making a clear distinction between them will help to accelerate research and development of digital evidence-making systems.

Keywords

Digital Signature Time Stamp Authorised Service Digital Time Digital Evidence 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Matsumoto, T., Iwamura, M., Sasaki, R., Matsuki, T.: Alibi Establishment for Electronic Signature: How to Prove that You Did Not Make the Electronic Signature in Question Even When the Base Crypotsystem Was Collapsed, IPSJ-CSEC (August 2000)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Hiroshi Yoshiura
    • 1
  • Kunihiko Miyazaki
    • 1
  • Shinji Itoh
    • 1
  • Kazuo Takaragi
    • 1
  • Ryoichi Sasaki
    • 2
  1. 1.Systems Development LaboratoryHitachi, Ltd.YokohamaJapan
  2. 2.Tokyo Denki UniversityTokyoJapan

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