Presentation	2003/11/7 Comments on Improved Peyravian-Zunic's Password Authentication Schemes Takasuke TSUJI, Akihiro SHIMIZU,
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Abstract(in English)	Applications for managing personal information have been developing in the Internet and mobile communications. Access control systems indispensable to those applications and need password authentications to protect users' right from the enemy. In 2000, M. Peyravian and N. Zunic have demonstrated a password authentication scheme, which uses one-way hash functions. However, those schemes are vulnerable to several attacks. Some study groups have discussed about them, and two improvements on Peyravian-Zunic's password authentication schemes are proposed. In those improved schemes, a server's public-key cryptosystem is used without a third party. This paper discusses security problems on those improved schemes.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	authentication / password / security / attack
Paper #	ISEC2003-80,OIS2003-57
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Conference Information
Committee	ISEC
Conference Date	2003/11/7(1days)
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Paper Information
Registration To	Information Security (ISEC)
Language	ENG
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Comments on Improved Peyravian-Zunic's Password Authentication Schemes
Sub Title (in English)
Keyword(1)	authentication
Keyword(2)	password
Keyword(3)	security
Keyword(4)	attack
1st Author's Name	Takasuke TSUJI
1st Author's Affiliation	Kochi University of Technology()
2nd Author's Name	Akihiro SHIMIZU
2nd Author's Affiliation	Kochi University of Technology
Date	2003/11/7
Paper #	ISEC2003-80,OIS2003-57
Volume (vol)	vol.103
Number (no)	417
Page	pp.pp.-
#Pages	5
Date of Issue