Presentation 2021-03-04
Efficient parallel computing method of isogeny based cryptography
Ryota Udani, Koutarou Suzuki,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) Jao et al. proposed SIDH, a key exchange protocol based on isogeny between supersingular elliptic curves. It is expected to be a candidate for quantum-resistant cryptography. Hutchinson et al. proposed the CCP model, which is an efficient method for parallel computation of isogenies required for SIDH. In this paper, we propose an extension of the CCP model for parallel computation of isogenies. The proposed method is compared with the existing methods, and it is shown that the proposed method is more efficient in 2-parallel environment for the parameters used in practice.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) isogeny based cryptography / parallel computing
Paper # IT2020-124,ISEC2020-54,WBS2020-43
Date of Issue 2021-02-25 (IT, ISEC, WBS)

Conference Information
Committee WBS / IT / ISEC
Conference Date 2021/3/4(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Joint Meeting of WBS, IT, and ISEC
Chair Masanori Hamamura(Kochi Univ. of Tech.) / Tadashi Wadayama(Nagoya Inst. of Tech.) / Shoichi Hirose(Univ. of Fukui)
Vice Chair Takashi Shono(INTEL) / Masahiro Fujii(Utsunomiya Univ.) / Tetsuya Kojima(Tokyo Kosen) / Tetsuya Izu(Fujitsu Labs.) / Noboru Kunihiro(Tsukuba Univ.)
Secretary Takashi Shono(Okayama Univ. of Science) / Masahiro Fujii(National Defence Academy) / Tetsuya Kojima(Yamaguchi Univ.) / Tetsuya Izu(Saga Univ.) / Noboru Kunihiro(Tsukuba Univ.)
Assistant Duong Quang Thang(NAIST) / Masafumi Moriyama(NICT) / Masayuki Kinoshita(Chiba Univ. of Tech.) / Takahiro Ohta(Senshu Univ.) / Kazuki Yoneyama(Ibaraki Univ.)

Paper Information
Registration To Technical Committee on Wideband System / Technical Committee on Information Theory / Technical Committee on Information Security
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Efficient parallel computing method of isogeny based cryptography
Sub Title (in English)
Keyword(1) isogeny based cryptography
Keyword(2) parallel computing
1st Author's Name Ryota Udani
1st Author's Affiliation Toyohashi University of Technology(TUT)
2nd Author's Name Koutarou Suzuki
2nd Author's Affiliation Toyohashi University of Technology(TUT)
Date 2021-03-04
Paper # IT2020-124,ISEC2020-54,WBS2020-43
Volume (vol) vol.120
Number (no) IT-410,ISEC-411,WBS-412
Page pp.pp.81-85(IT), pp.81-85(ISEC), pp.81-85(WBS),
#Pages 5
Date of Issue 2021-02-25 (IT, ISEC, WBS)