Presentation 2003/7/10
Digital Document Sanitizing Problem
Kunihiko MIYAZAKI, Seiichi SUSAKI, Mitsuru IWAMURA, Tsutomu Matsumoto, Ryoichi SASAKI, Hiroshi YOSHIURA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Digital signature does not allow any alteration of the document. However, "appropriate" alteration should be allowed for some signed document because of other security requirements etc. Disclosure of official information is a typical example of this. Sensitive information such as private information should be sanitized from the original digitally signed document when it is disclosed. "Digital document sanitizing problem" is the problem that signed document cannot be verified if some part of the signed document is concealed. In this paper, we propose new digital signature techniques which can solve digital document sanitizing problem.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) digital signature / information disclosure / privacy issues
Paper # ISEC2003-20
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Committee ISEC
Conference Date 2003/7/10(1days)
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Paper Information
Registration To Information Security (ISEC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Digital Document Sanitizing Problem
Sub Title (in English)
Keyword(1) digital signature
Keyword(2) information disclosure
Keyword(3) privacy issues
1st Author's Name Kunihiko MIYAZAKI
1st Author's Affiliation Systems Development Laboratory, Hitachi Ltd.:Graduate School of Information Science and Technology, The University of Tokyo()
2nd Author's Name Seiichi SUSAKI
2nd Author's Affiliation Systems Development Laboratory, Hitachi Ltd.:Graduate School of Environment and Information Sciences, Yokohama National University
3rd Author's Name Mitsuru IWAMURA
3rd Author's Affiliation Graduate School of Asia-Pacific Studies, Waseda University
4th Author's Name Tsutomu Matsumoto
4th Author's Affiliation Graduate School of Environment and Information Sciences, Yokohama National University
5th Author's Name Ryoichi SASAKI
5th Author's Affiliation Faculty of Engineering, Tokyo Denki University /
6th Author's Name Hiroshi YOSHIURA
6th Author's Affiliation
Date 2003/7/10
Paper # ISEC2003-20
Volume (vol) vol.103
Number (no) 195
Page pp.pp.-
#Pages 7
Date of Issue