Presentation 2015-03-02
Accelerating QUAD Stream Cipher using Optimal Extension Field on GPU
Satoshi TANAKA, Chen-Mou CHENG, Takanori YASUDA, Kouichi SAKURAI,
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Abstract(in English) Evaluating non-linear multivariate polynomial systems over finite fields is an important subroutine for QUAD stream cipher. The security of QUAD definitely becomes lower if a larger field is used instead of GF(2) given the same number of bits in the key. However, we still would like to use larger fields because QUAD tends to run faster at the same level of security if a larger field is used. In this paper, we substitute Optimal Extension Fields (OEF) for GF(2^<32>) to a finite field of multivariate quadratic polynomials. QUAD over GF(2^<32>-5) with 64 polynomials in 32 variables is 9 times faster than over GF(2^<32>) on GPU.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) GPGPU / stream cipher / multivariate public-key cryptography / Optimal Extension Field
Paper # IT2014-62,ISEC2014-75,WBS2014-54
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Committee ISEC
Conference Date 2015/2/23(1days)
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Registration To Information Security (ISEC)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Accelerating QUAD Stream Cipher using Optimal Extension Field on GPU
Sub Title (in English)
Keyword(1) GPGPU
Keyword(2) stream cipher
Keyword(3) multivariate public-key cryptography
Keyword(4) Optimal Extension Field
1st Author's Name Satoshi TANAKA
1st Author's Affiliation Institute of Systems, Information Technologies and Nanotechnologies (ISIT):Kyushu University()
2nd Author's Name Chen-Mou CHENG
2nd Author's Affiliation Kyushu University
3rd Author's Name Takanori YASUDA
3rd Author's Affiliation Institute of Systems, Information Technologies and Nanotechnologies (ISIT)
4th Author's Name Kouichi SAKURAI
4th Author's Affiliation Institute of Systems, Information Technologies and Nanotechnologies (ISIT):Kyushu University
Date 2015-03-02
Paper # IT2014-62,ISEC2014-75,WBS2014-54
Volume (vol) vol.114
Number (no) 471
Page pp.pp.-
#Pages 4
Date of Issue