Presentation 2011-03-04
A consideration on unconditionally secure key distribution schemes considering leakage of secret information of key distribution centers
Takahiro YOSHIDA, Hajime JINUSHI, Toshiyasu MATSUSHIMA,
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Abstract(in English) A key distribution scheme (KDS) is a method of distributing secret keys in the network. In the conventional KDS, the security model was defined for collision attack by using the available information of centers and users. In this study, we define a KDS based on a new security model considering leakage of secret information of key distribution centers as well as collusion of centers and users. In our definition of KDS, we derive lower bounds on memory sizes and amount of received information of each entity, and show the concrete construction that meets corresponding lower bounds.
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Keyword(in English) key distribution scheme / information leakage / optimal construction / unconditionally secure
Paper # IT2010-112,ISEC2010-116,WBS2010-91
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Committee ISEC
Conference Date 2011/2/24(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A consideration on unconditionally secure key distribution schemes considering leakage of secret information of key distribution centers
Sub Title (in English)
Keyword(1) key distribution scheme
Keyword(2) information leakage
Keyword(3) optimal construction
Keyword(4) unconditionally secure
1st Author's Name Takahiro YOSHIDA
1st Author's Affiliation College of Science and Engineering, Aoyama Gakuin University()
2nd Author's Name Hajime JINUSHI
2nd Author's Affiliation College of Science and Engineering, Aoyama Gakuin University
3rd Author's Name Toshiyasu MATSUSHIMA
3rd Author's Affiliation the Department of Applied Mathematics, Waseda University
Date 2011-03-04
Paper # IT2010-112,ISEC2010-116,WBS2010-91
Volume (vol) vol.110
Number (no) 443
Page pp.pp.-
#Pages 6
Date of Issue