Presentation 2006-07-20
On the security of Piece In Hand Concept based on Sequential Solution Method
Daisuke ITO, Yoshitomo FUKUSHIMA, Toshinobu KANEKO,
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Abstract(in English) In 2003, Tsujii et al. proposed multivariate type public key cryptosystem, named Piece In Hand Concept. This cryptosystem is an enhanced multivariate type public key by MOCHIGOMA matrix (PH matrix). They claim that it is difficult to derive the secret key. Because the Piece In Hand Concept is not included all the secret key in the public key. In this paper, we describe the technique of deriving equivalent PH matrix and report the security of Piece In Hand Concept.
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Keyword(in English) public key cryptosystem / multivariate polynomial / multivariate type public key cryptosystem / piece in hand concept
Paper # ISEC2006-30,SITE2006-27
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Committee SITE
Conference Date 2006/7/13(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) On the security of Piece In Hand Concept based on Sequential Solution Method
Sub Title (in English)
Keyword(1) public key cryptosystem
Keyword(2) multivariate polynomial
Keyword(3) multivariate type public key cryptosystem
Keyword(4) piece in hand concept
1st Author's Name Daisuke ITO
1st Author's Affiliation Faculty of Science and Technology, Tokyo University of Science()
2nd Author's Name Yoshitomo FUKUSHIMA
2nd Author's Affiliation Faculty of Science and Technology, Tokyo University of Science
3rd Author's Name Toshinobu KANEKO
3rd Author's Affiliation Faculty of Science and Technology, Tokyo University of Science
Date 2006-07-20
Paper # ISEC2006-30,SITE2006-27
Volume (vol) vol.106
Number (no) 174
Page pp.pp.-
#Pages 5
Date of Issue