Presentation 2019-07-23
A Revocable Group Signature Scheme with Strong Anonymity for Crowdsensing
Yuto Nakazawa, Toru Nakanishi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In crowdsensing, many users carrying mobile terminals send environmental data and congestion status to the server together with the user’s location information, and the server analyzes the data to perform environmental monitoring and congestion forecast at the city level. In crowdsensing, in order to realize efficient user authentication with privacy protection, a revocable group signature scheme has been proposed, where the burden on the user side is reduced and the revocation check is performed at high speed. However, in this previous scheme, there is a problem on anonymity, because the number of use of signatures included in the signature leaks. Therefore, in this research, we propose an efficient revocable group signature with the enhanced anonymity. In addition, the practicality is shown by experiments based on implementation on a PC.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Crowdsensing / Revocable Group Signature / Verifier-Local Revocation / Pairing
Paper # ISEC2019-22,SITE2019-16,BioX2019-14,HWS2019-17,ICSS2019-20,EMM2019-25
Date of Issue 2019-07-16 (ISEC, SITE, BioX, HWS, ICSS, EMM)

Conference Information
Committee ISEC / SITE / ICSS / EMM / HWS / BioX / IPSJ-CSEC / IPSJ-SPT
Conference Date 2019/7/23(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kochi University of Technology
Topics (in Japanese) (See Japanese page)
Topics (in English) Security, etc.
Chair Shiho Moriai(NICT) / Tetsuya Morizumi(Kanagawa Univ.) / Hiroki Takakura(NII) / Masaki Kawamura(Yamaguchi Univ.) / Shinichi Kawamura(Toshiba) / Akira Otsuka(IISEC)
Vice Chair Shoichi Hirose(Univ. of Fukui) / Tetsuya Izu(Fujitsu Labs.) / Masaru Ogawa(Kobe Gakuin Univ.) / Takushi Otani(Kibi International Univ.) / Katsunari Yoshioka(Yokohama National Univ.) / Kazunori Kamiya(NTT) / Motoi Iwata(Osaka Prefecture Univ.) / Tetsuya Kojima(NIT,Tokyo College) / Makoto Ikeda(Univ. of Tokyo) / Yasuhisa Shimazaki(Renesas Electronics) / Tetsushi Ohki(Shizuoka Univ.) / Takahiro Aoki(Fujitsu Labs.)
Secretary Shoichi Hirose(NICT) / Tetsuya Izu(Tsukuba Univ.) / Masaru Ogawa(Toyo Eiwa Univ.) / Takushi Otani(KDDI Research) / Katsunari Yoshioka(NICT) / Kazunori Kamiya(KDDI labs.) / Motoi Iwata(NIT, Nagano College) / Tetsuya Kojima(Nagase) / Makoto Ikeda(SECOM) / Yasuhisa Shimazaki(Kyushu Univ.) / Tetsushi Ohki(Univ. of Electro-Comm.) / Takahiro Aoki(SECOM)
Assistant Dai Yamamoto(Fujitsu Labs.) / Yuuji Suga(IIJ) / Nobuyuki Yoshinaga(Yamaguchi Pref Univ.) / Daisuke Suzuki(Hokuriku Univ.) / Keisuke Kito(Mitsubishi Electric) / Toshihiro Yamauchi(Okayama Univ.) / Masaki Inamura(Tokyo Denki Univ.) / Kazuhiro Kono(Kansai Univ.) / / Daishi Watabe(Saitama Inst. of Tech.) / Ryota Horie(Shibaura Inst. of Tech.)

Paper Information
Registration To Technical Committee on Information Security / Technical Committee on Social Implications of Technology and Information Ethics / Technical Committee on Information and Communication System Security / Technical Committee on Enriched MultiMedia / Technical Committee on Hardware Security / Technical Committee on Biometrics / Special Interest Group on Computer Security / Special Interest Group on Security Psychology and Trust
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Revocable Group Signature Scheme with Strong Anonymity for Crowdsensing
Sub Title (in English)
Keyword(1) Crowdsensing
Keyword(2) Revocable Group Signature
Keyword(3) Verifier-Local Revocation
Keyword(4) Pairing
1st Author's Name Yuto Nakazawa
1st Author's Affiliation Hiroshima University(Hiroshima Univ.)
2nd Author's Name Toru Nakanishi
2nd Author's Affiliation Hiroshima University(Hiroshima Univ.)
Date 2019-07-23
Paper # ISEC2019-22,SITE2019-16,BioX2019-14,HWS2019-17,ICSS2019-20,EMM2019-25
Volume (vol) vol.119
Number (no) ISEC-140,SITE-141,BioX-142,HWS-143,ICSS-144,EMM-145
Page pp.pp.107-112(ISEC), pp.107-112(SITE), pp.107-112(BioX), pp.107-112(HWS), pp.107-112(ICSS), pp.107-112(EMM),
#Pages 6
Date of Issue 2019-07-16 (ISEC, SITE, BioX, HWS, ICSS, EMM)