Presentation	2001/11/2 Security improvement of certificate revocation sheme which prevents using private key Shin'ichiro MATSUO, Yoshiyuki HASHIKAWA, Hiroaki SAKAMOTO,
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Abstract(in English)	In public key infrastructure(PKI), certificate and secret key revocation scheme is needed to prevent using stolen secret key. In existing certificate revocation scheme, there are issues that a verifier cannot verify the complete validity of digital signatures, because of the gap between the timing of signing and revocation. In this paper we point out the issues of existing schemes and propose new certificate revocation scheme which can solve these problems.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	Public Key Infrastructure / Certificate Revocation / Digital Signature
Paper #	ISEC2001-82
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Conference Information
Committee	ISEC
Conference Date	2001/11/2(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)	Security improvement of certificate revocation sheme which prevents using private key
Sub Title (in English)
Keyword(1)	Public Key Infrastructure
Keyword(2)	Certificate Revocation
Keyword(3)	Digital Signature
1st Author's Name	Shin'ichiro MATSUO
1st Author's Affiliation	IT Security Center, NTT DATA Corporation:Tokyo Institute of Technology()
2nd Author's Name	Yoshiyuki HASHIKAWA
2nd Author's Affiliation	IT Security Center, NTT DATA Corporation
3rd Author's Name	Hiroaki SAKAMOTO
3rd Author's Affiliation	IT Security Center, NTT DATA Corporation
Date	2001/11/2
Paper #	ISEC2001-82
Volume (vol)	vol.101
Number (no)	403
Page	pp.pp.-
#Pages	7
Date of Issue