Edit Profile Okamoto, Eiji Compute Distance To: Compute Author ID: okamoto.eiji Published as: Okamoto, Eiji Documents Indexed: 56 Publications since 1988, including 7 Books all top 5 Co-Authors 1 single-authored 12 Okamoto, Takeshi 11 Mambo, Masahiro 7 Beuchat, Jean-Luc 7 Kanayama, Naoki 7 Tso, Raylin 6 Nishide, Takashi 5 Hanaoka, Goichiro 4 Dawson, Edward 4 Detrey, Jérémie 4 Doi, Hiroshi 4 Rodríguez-Henríquez, Francisco 4 Takagi, Tsuyoshi 3 Brisebarre, Nicolas 3 Lopez, Javier 3 Miao, Ying 3 Nuida, Koji 3 Shinagawa, Kazumasa 3 Shirase, Masaaki 3 Teruya, Tadanori 3 Wang, Lihua 2 Boyd, Colin A. 2 Estibals, Nicolas 2 Kim, Kwangjo 2 Mizuki, Takaaki 2 Peng, Kun 2 Pieprzyk, Josef P. 2 Qing, Sihan 2 Saito, Kazutaka 2 Sakazaki, Hisao 2 Sakurai, Kouichi 2 Schuldt, Jacob C. N. 2 Tada, Mitsuru 2 Uchiyama, Shigenori 2 Uyematsu, Tomohiko 2 Wang, Licheng 1 Burmester, Mike V. D. 1 Cao, Zhenfu 1 Coulter, Robert S. 1 Davida, George I. 1 Desmedt, Yvo G. 1 Emura, Keita 1 Fujita, Kaoru 1 González-Díaz, Jorge E. 1 González Nieto, Juan Manuel 1 González Nieto, Juanma 1 Goré, Rajeev Prabhakar 1 Gu, Chunxiang 1 Hayashi, Kenichi 1 Henderson, Marie 1 Hess, Florian 1 Inomata, Atsuo 1 Ith, Piseth 1 Kanaoka, Akira 1 Katouno, Masayoshi 1 Katsuno, Hirofumi 1 Kawahara, Yuto 1 Kitajima, Nobuaki 1 Kobayashi, Tetsutaro 1 Kodate, Akihisa 1 Kramer, Simon 1 Lam, Kwokyan 1 Liu, Dongmei 1 Liu, Yang 1 Matsuda, Seiichi 1 Mitsunari, Shigeo 1 Montenegro, Jose A. 1 Nakagawa, Sanami 1 Ogura, Naoki 1 Okamoto, Tatsuaki 1 Roy, Bimal Kumar 1 Sakai, Yusuke 1 Sato, Chifumi 1 Seberry, Jennifer R. 1 Shao, Jun 1 Shiga, Takaaki 1 Soga, Ryuji 1 Syukri, Agus Fanar 1 Tsuchida, Hikaru 1 Tsunoo, Yukiyasu 1 Vithanage, Ananda 1 Xing, Chaoping 1 Yamakawa, Takashi 1 Yamamoto, Hiroyasu 1 Yoshifuji, Yuko all top 5 Serials 7 Lecture Notes in Computer Science 2 IEEE Transactions on Information Theory 2 IEEE Transactions on Computers 2 International Journal of Applied Cryptography 1 Computers and Electrical Engineering 1 JCMCC. The Journal of Combinatorial Mathematics and Combinatorial Computing 1 Journal of Logic and Computation 1 JSIAM Letters all top 5 Fields 54 Information and communication theory, circuits (94-XX) 25 Computer science (68-XX) 8 Algebraic geometry (14-XX) 7 General and overarching topics; collections (00-XX) 4 Number theory (11-XX) 1 Numerical analysis (65-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH 23 Publications have been cited 66 times in 61 Documents Cited by ▼ Year ▼ High-speed software implementation of the optimal ate pairing over Barreto-Naehrig curves. Zbl 1287.94054Beuchat, Jean-Luc; González-Díaz, Jorge E.; Mitsunari, Shigeo; Okamoto, Eiji; Rodríguez-Henríquez, Francisco; Teruya, Tadanori 11 2010 Optimised versions of the ate and twisted ate pairings. Zbl 1154.94416Matsuda, Seiichi; Kanayama, Naoki; Hess, Florian; Okamoto, Eiji 8 2007 New constructions of public-key encryption schemes from conjugacy search problems. Zbl 1295.94148Wang, Lihua; Wang, Licheng; Cao, Zhenfu; Okamoto, Eiji; Shao, Jun 6 2011 Extended proxy signatures for smart cards. Zbl 0942.94029Okamoto, Takeshi; Tada, Mitsuru; Okamoto, Eiji 5 1999 Fast architectures for the \(\eta_T\) pairing over small-characteristic supersingular elliptic curves. Zbl 1366.94477Beuchat, Jean-Luc; Detrey, Jérémie; Estibals, Nicolas; Okamoto, Eiji; Rodríguez-Henríquez, Francisco 4 2011 New identity-based proxy re-encryption schemes to prevent collusion attacks. Zbl 1252.94100Wang, Lihua; Wang, Licheng; Mambo, Masahiro; Okamoto, Eiji 4 2010 A comparison between hardware accelerators for the modified Tate pairing over \(\mathbb{F}_{2^m}\) and \(\mathbb{F}_{3^m}\). Zbl 1186.94424Beuchat, Jean-Luc; Brisebarre, Nicolas; Detrey, Jérémie; Okamoto, Eiji; Rodríguez-Henríquez, Francisco 3 2008 Efficient ID-based digital signatures with message recovery. Zbl 1282.94082Tso, Raylin; Gu, Chunxiang; Okamoto, Takeshi; Okamoto, Eiji 3 2007 Practical strong designated verifier signature schemes based on double discrete logarithms. Zbl 1151.94629Tso, Raylin; Okamoto, Takeshi; Okamoto, Eiji 3 2005 One-way and two-party authenticated ID-based key agreement protocols using pairing. Zbl 1121.94310Okamoto, Takeshi; Tso, Raylin; Okamoto, Eiji 3 2005 Constructing symmetric pairings over supersingular elliptic curves with embedding degree three. Zbl 1307.94104Teruya, Tadanori; Saito, Kazutaka; Kanayama, Naoki; Kawahara, Yuto; Kobayashi, Tetsutaro; Okamoto, Eiji 2 2014 Cryptographic pairings based on elliptic nets. Zbl 1344.94068Ogura, Naoki; Kanayama, Naoki; Uchiyama, Shigenori; Okamoto, Eiji 2 2011 Algorithms and arithmetic operators for computing the \(\eta_T\) pairing in characteristic three. Zbl 1367.11087Beuchat, Jean-Luc; Brisebarre, Nicolas; Detrey, Jérémie; Okamoto, Eiji; Shirase, Masaaki; Takagi, Tsuyoshi 2 2008 Multi-party computation with small shuffle complexity using regular polygon cards. Zbl 1388.94078Shinagawa, Kazumasa; Mizuki, Takaaki; Schuldt, Jacob C. N.; Nuida, Koji; Kanayama, Naoki; Nishide, Takashi; Hanaoka, Goichiro; Okamoto, Eiji 1 2015 Computer-aided decision-making with trust relations and trust domains (cryptographic applications). Zbl 1361.68275Kramer, Simon; Goré, Rajeev; Okamoto, Eiji 1 2014 Approach to pairing inversions without solving Miller inversion. Zbl 1365.14037Kanayama, Naoki; Okamoto, Eiji 1 2012 ECDSA-verifiable signcryption scheme with signature verification on the signcrypted message. Zbl 1166.94342Tso, Raylin; Okamoto, Takeshi; Okamoto, Eiji 1 2008 Verifier-key-flexible universal designated-verifier signatures. Zbl 1154.94473Tso, Raylin; Gonzàlez Nieto, Juan Manuel; Okamoto, Takeshi; Boyd, Colin; Okamoto, Eiji 1 2007 A coprocessor for the final exponentiation of the \(\eta_T\) pairing in characteristic three. Zbl 1183.68025Beuchat, Jean-Luc; Brisebarre, Nicolas; Shirase, Masaaki; Takagi, Tsuyoshi; Okamoto, Eiji 1 2007 A new algorithm for searching a consistent set of shares in a threshold scheme with cheaters. Zbl 1092.94516Tso, Raylin; Miao, Ying; Okamoto, Eiji 1 2004 On the security of the RSA-based multisignature scheme for various group structures. Zbl 0963.94518Doi, Hiroshi; Mambo, Masahiro; Okamoto, Eiji 1 2000 A structured ElGamal-type multisignature scheme. Zbl 0969.94028Burmester, Mike; Desmedt, Yvo; Doi, Hiroshi; Mambo, Masahiro; Okamoto, Eiji; Tada, Mitsuru; Yoshifuji, Yuko 1 2000 How to utilize the transformability of digital signatures for solving the oracle problem. Zbl 1004.94546Mambo, Masahiro; Sakurai, Kouichi; Okamoto, Eiji 1 1996 Multi-party computation with small shuffle complexity using regular polygon cards. Zbl 1388.94078Shinagawa, Kazumasa; Mizuki, Takaaki; Schuldt, Jacob C. N.; Nuida, Koji; Kanayama, Naoki; Nishide, Takashi; Hanaoka, Goichiro; Okamoto, Eiji 1 2015 Constructing symmetric pairings over supersingular elliptic curves with embedding degree three. Zbl 1307.94104Teruya, Tadanori; Saito, Kazutaka; Kanayama, Naoki; Kawahara, Yuto; Kobayashi, Tetsutaro; Okamoto, Eiji 2 2014 Computer-aided decision-making with trust relations and trust domains (cryptographic applications). Zbl 1361.68275Kramer, Simon; Goré, Rajeev; Okamoto, Eiji 1 2014 Approach to pairing inversions without solving Miller inversion. Zbl 1365.14037Kanayama, Naoki; Okamoto, Eiji 1 2012 New constructions of public-key encryption schemes from conjugacy search problems. Zbl 1295.94148Wang, Lihua; Wang, Licheng; Cao, Zhenfu; Okamoto, Eiji; Shao, Jun 6 2011 Fast architectures for the \(\eta_T\) pairing over small-characteristic supersingular elliptic curves. Zbl 1366.94477Beuchat, Jean-Luc; Detrey, Jérémie; Estibals, Nicolas; Okamoto, Eiji; Rodríguez-Henríquez, Francisco 4 2011 Cryptographic pairings based on elliptic nets. Zbl 1344.94068Ogura, Naoki; Kanayama, Naoki; Uchiyama, Shigenori; Okamoto, Eiji 2 2011 High-speed software implementation of the optimal ate pairing over Barreto-Naehrig curves. Zbl 1287.94054Beuchat, Jean-Luc; González-Díaz, Jorge E.; Mitsunari, Shigeo; Okamoto, Eiji; Rodríguez-Henríquez, Francisco; Teruya, Tadanori 11 2010 New identity-based proxy re-encryption schemes to prevent collusion attacks. Zbl 1252.94100Wang, Lihua; Wang, Licheng; Mambo, Masahiro; Okamoto, Eiji 4 2010 A comparison between hardware accelerators for the modified Tate pairing over \(\mathbb{F}_{2^m}\) and \(\mathbb{F}_{3^m}\). Zbl 1186.94424Beuchat, Jean-Luc; Brisebarre, Nicolas; Detrey, Jérémie; Okamoto, Eiji; Rodríguez-Henríquez, Francisco 3 2008 Algorithms and arithmetic operators for computing the \(\eta_T\) pairing in characteristic three. Zbl 1367.11087Beuchat, Jean-Luc; Brisebarre, Nicolas; Detrey, Jérémie; Okamoto, Eiji; Shirase, Masaaki; Takagi, Tsuyoshi 2 2008 ECDSA-verifiable signcryption scheme with signature verification on the signcrypted message. Zbl 1166.94342Tso, Raylin; Okamoto, Takeshi; Okamoto, Eiji 1 2008 Optimised versions of the ate and twisted ate pairings. Zbl 1154.94416Matsuda, Seiichi; Kanayama, Naoki; Hess, Florian; Okamoto, Eiji 8 2007 Efficient ID-based digital signatures with message recovery. Zbl 1282.94082Tso, Raylin; Gu, Chunxiang; Okamoto, Takeshi; Okamoto, Eiji 3 2007 Verifier-key-flexible universal designated-verifier signatures. Zbl 1154.94473Tso, Raylin; Gonzàlez Nieto, Juan Manuel; Okamoto, Takeshi; Boyd, Colin; Okamoto, Eiji 1 2007 A coprocessor for the final exponentiation of the \(\eta_T\) pairing in characteristic three. Zbl 1183.68025Beuchat, Jean-Luc; Brisebarre, Nicolas; Shirase, Masaaki; Takagi, Tsuyoshi; Okamoto, Eiji 1 2007 Practical strong designated verifier signature schemes based on double discrete logarithms. Zbl 1151.94629Tso, Raylin; Okamoto, Takeshi; Okamoto, Eiji 3 2005 One-way and two-party authenticated ID-based key agreement protocols using pairing. Zbl 1121.94310Okamoto, Takeshi; Tso, Raylin; Okamoto, Eiji 3 2005 A new algorithm for searching a consistent set of shares in a threshold scheme with cheaters. Zbl 1092.94516Tso, Raylin; Miao, Ying; Okamoto, Eiji 1 2004 On the security of the RSA-based multisignature scheme for various group structures. Zbl 0963.94518Doi, Hiroshi; Mambo, Masahiro; Okamoto, Eiji 1 2000 A structured ElGamal-type multisignature scheme. Zbl 0969.94028Burmester, Mike; Desmedt, Yvo; Doi, Hiroshi; Mambo, Masahiro; Okamoto, Eiji; Tada, Mitsuru; Yoshifuji, Yuko 1 2000 Extended proxy signatures for smart cards. Zbl 0942.94029Okamoto, Takeshi; Tada, Mitsuru; Okamoto, Eiji 5 1999 How to utilize the transformability of digital signatures for solving the oracle problem. Zbl 1004.94546Mambo, Masahiro; Sakurai, Kouichi; Okamoto, Eiji 1 1996 all cited Publications top 5 cited Publications all top 5 Cited by 162 Authors 3 Duquesne, Sylvain 3 El Mrabet, Nadia 3 Rodríguez-Henríquez, Francisco 3 Susilo, Willy 2 Aranha, Diego F. 2 Chang, Nam Su 2 Chen, Binglong 2 Costello, Craig 2 Hasan, M. Anwar 2 Kanayama, Naoki 2 Knapp, Edward 2 Mu, Yi 2 Myasnikov, Alexei G. 2 Negre, Christophe 2 Nogami, Yasuyuki 2 Roman’kov, Vitaly Anatol’evich 2 Shim, Kyungah 2 Tang, Chunming 2 Teruya, Tadanori 2 Uchiyama, Shigenori 2 Vassileva, Svetla 2 Weiß, Armin 2 Wong, Duncan S. 2 Yu, Yong 2 Zhao, Changan 1 Adikari, Jithra 1 Barbulescu, Razvan 1 Benhamouda, Fabrice 1 Beuchat, Jean-Luc 1 Biswas, G. P. 1 Boldyreva, Alexandra 1 Boyd, Colin A. 1 Cervantes-Vázquez, Daniel 1 Chen, Chunlin 1 Chen, Huiyan 1 Chen, Xiaofeng 1 Chen, Yuchi 1 Cheon, Jung Hee 1 Cheonshik, Kim 1 Cho, Young In 1 Chu, Cheng-Kang 1 Couteau, Geoffroy 1 Datta, Amit 1 Deng, Robert Huijie 1 Detrey, Jérémie 1 Eom, Soo-Kyung 1 Estibals, Nicolas 1 Fan, Haining 1 Fawaz, Nadia 1 Fouotsa, Emmanuel 1 Fuentes-Castañeda, Laura 1 Fujii, Yoshihiro 1 Ghammam, Loubna 1 González Nieto, Juan Manuel 1 Gu, Lize 1 Guo, Baoan 1 Haloui, Safia 1 Han, Dong-Guk 1 Hayashi, Ryotaro 1 Hayashi, Takuya 1 He, Kai 1 Hisil, Huseyin 1 Hong, Fan 1 Hong, Seokhie 1 Horng, Gwoboa 1 Hu, Yupu 1 Huang, Chang-Chin 1 Islam, Sk Hafizul 1 Ji, Yafu 1 Joye, Marc 1 Kang, Burong 1 Karabina, Koray 1 Kato, Hidehiro 1 Khandaker, Md. Al-Amin 1 Kim, Changhan 1 Kim, Sungwook 1 Kim, Taechan 1 Kim, Taehyun 1 Kosolosky, Laszlo 1 Lauter, Kristin Estella 1 Lee, Hyangsook 1 Li, Jiguo 1 Li, Jin 1 Li, Jun 1 Liang, Kaitai 1 Liao, Yongjian 1 Lim, Jongin 1 Liu, Joseph K. K. 1 Liu, Yang 1 Liu, Zhenhua 1 López, Julio E. 1 Lu, Yang 1 Ma, Hua 1 Ma, Jianfeng 1 Martin, Keith M. 1 Matsushita, Tatsuyuki 1 Menezes, Alfred J. 1 Meng, Xinyu 1 Ming, Yang 1 Morikawa, Yoshitaka ...and 62 more Authors all top 5 Cited in 28 Serials 4 Information Sciences 4 Theoretical Computer Science 2 Computers & Mathematics with Applications 2 Journal of Cryptology 2 Designs, Codes and Cryptography 2 Applicable Algebra in Engineering, Communication and Computing 2 Finite Fields and their Applications 2 Journal of Applied Mathematics 2 Journal of Shanghai Jiaotong University (Science) 2 Groups, Complexity, Cryptology 2 JSIAM Letters 1 Acta Informatica 1 Discrete Applied Mathematics 1 Information Processing Letters 1 Mathematics of Computation 1 Algebra and Logic 1 Mathematical and Computer Modelling 1 International Journal of Foundations of Computer Science 1 International Journal of Computer Mathematics 1 Theory of Computing Systems 1 Topoi 1 Wuhan University Journal of Natural Sciences (WUJNS) 1 Journal of Mathematical Cryptology 1 Cryptography and Communications 1 Science China. Information Sciences 1 Symmetry 1 Afrika Matematika 1 Arabian Journal for Science and Engineering all top 5 Cited in 8 Fields 55 Information and communication theory, circuits (94-XX) 19 Computer science (68-XX) 15 Number theory (11-XX) 15 Algebraic geometry (14-XX) 3 Group theory and generalizations (20-XX) 1 Mathematical logic and foundations (03-XX) 1 General algebraic systems (08-XX) 1 Field theory and polynomials (12-XX) Citations by Year