Curriculum Vitaes
Profile Information
- Affiliation
- University of Hyogo
- Degree
- 博士（工学）(Mar, 2007, 九州大学)
- Contact information
- toshi
gsis.u-hyogo.ac.jp - J-GLOBAL ID
- 202101019342165016
- researchmap Member ID
- R000015855
Research Interests
5Research Areas
1Research History
7-
Apr, 2021 - Present
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Jun, 2016
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Apr, 2010
Education
2-
Apr, 1984 - Mar, 1986
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Apr, 1980 - Mar, 1984
Committee Memberships
14-
Apr, 2013 - Present
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Feb, 2018 - Apr, 2020
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Jun, 2014 - May, 2015
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Jun, 2014 - May, 2015
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Apr, 2003 - Mar, 2015
Awards
14-
Sep, 2020
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Jan, 2020
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Jun, 2019
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Sep, 2017
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Jun, 2016
Papers
100-
IEICE Trans. Inf. Syst., 97-D(1) 43-52, 2014 Peer-reviewed
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The 11th IEEE Int. Conference on Trust, Security and Privacy in Computing and Communications (TrustCom2012), 1755-1762, Jun, 2012 Peer-reviewed
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International Conference on Security and Cryptography (Secrypt2011), 362-369, 2011 Peer-reviewed
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Sixth International Conference on Availability, Reliability and Security(ARES), 442-447, 2011 Peer-reviewed
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The Journal of the Institute of Television Engineers of Japan, 64(12) 1921-1932, Dec 1, 2010In this paper, we present an authentication mechanism for ISDB-T broadcast streams, especially a One-Seg broadcast stream, which is suitable for low-power devices. Our method makes it possible to authenticate data streams at a low computational cost. The method requires a small memory for buffering to process the broadcast stream and is resistant to packet-loss. We evaluated the computational cost of our method by computer simulation and theoretical estimation, and we show here that our method achieved good properties for authenticating data streams broadcast through lossy channels, e.g. wireless channels. Furthermore, we developed a mobile phone that can authenticate One-Seg broadcast streams with our method, and we report the effectiveness of our scheme here.
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Proceedings of the 2010 IEEE Second International Conference on Social Computing, SocialCom / IEEE International Conference on Privacy, Security, Risk and Trust(SocialCom/PASSAT), 944-951, 2010 Peer-reviewed
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SECRYPT 2010 - Proceedings of the International Conference on Security and Cryptography, Athens, Greece, July 26-28, 2010, SECRYPT is part of ICETE - The International Joint Conference on e-Business and Telecommunications(SECRYPT), 334-343, 2010 Peer-reviewed
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POLICY 2010, IEEE International Symposium on Policies for Distributed Systems and Networks(POLICY), 107-110, 2010 Peer-reviewed
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MoMM'2010 - The Eighth International Conference on Advances in Mobile Computing and Multimedia(MoMM), 33-41, 2010 Peer-reviewed
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Advances in Information and Computer Security - 5th International Workshop on Security(IWSEC), 326-336, 2010 Peer-reviewed
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e-Business and Telecommunications - 7th International Joint Conference, 188-202, 2010 Peer-reviewed
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Data Privacy Management and Autonomous Spontaneous Security - 5th International Workshop, DPM 2010 and 3rd International Workshop(DPM/SETOP), 22-35, 2010 Peer-reviewed
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Proceedings of the 2010 International Conference on Security & Management, 323-329, 2010 Peer-reviewed
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Proceedings of the 2010 International Conference on Security & Management, 152-156, 2010 Peer-reviewed
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24th IEEE International Conference on Advanced Information Networking and Applications Workshops, 226-233, 2010 Peer-reviewed
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Information Security and Privacy - 15th Australasian Conference(ACISP), 53-73, 2010 Peer-reviewed
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Int. J. Inf. Technol. Manag., 9(4) 389-403, 2010 Peer-reviewed
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IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 93-A(11) 2034-2044, 2010 Peer-reviewed
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2009 IEEE Wireless Communications and Networking Conference(WCNC), 2726-2731, 2009 Peer-reviewed
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Emerging Challenges for Security, Privacy and Trust(SEC), 119-131, 2009 Peer-reviewed
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Sixth International Conference on Information Technology: New Generations(ITNG), 435-442, 2009 Peer-reviewed
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Proceedings of the 2009 International Conference on Security & Management, 258-264, 2009 Peer-reviewed
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Proceedings of the 12th IEEE International Conference on Computational Science and Engineering, 665-670, 2009 Peer-reviewed
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IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 92-A(8) 1808-1821, 2009 Peer-reviewed
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IEICE Trans. Commun., 92-B(4) 1112-1118, 2009 Peer-reviewed
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IACR Cryptol. ePrint Arch., 2008 409-409, 2008 Peer-reviewed
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Information Security Applications(WISA), 225-239, 2008 Peer-reviewed
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SECRYPT 2008, Proceedings of the International Conference on Security and Cryptography, Porto, Portugal, July 26-29, 2008, SECRYPT is part of ICETE - The International Joint Conference on e-Business and Telecommunications(SECRYPT), 270-277, 2008 Peer-reviewed
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Information Security(ISC), 455-470, 2008 Peer-reviewed
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IEEE International Conference on Intelligence and Security Informatics(ISI), 215-217, 2008 Peer-reviewed
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ICEIS 2008 - Proceedings of the Tenth International Conference on Enterprise Information Systems, 97-104, 2008 Peer-reviewed
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J. Inf. Process., 16 130-141, 2008 Peer-reviewed
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IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 91-A(9) 2365-2378, 2008 Peer-reviewed
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IEICE Trans. Inf. Syst., 91-D(5) 1330-1337, 2008 Peer-reviewed
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IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 91-A(1) 316-329, 2008 Peer-reviewed
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IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 91-A(1) 127-138, 2008 Peer-reviewed
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IACR Cryptol. ePrint Arch., 2007 340-340, 2007 Peer-reviewed
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Information Security Applications(WISA), 203-214, 2007 Peer-reviewed
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SECRYPT 2007, Proceedings of the International Conference on Security and Cryptography, Barcelona, Spain, July 28-13, 2007, SECRYPT is part of ICETE - The International Joint Conference on e-Business and Telecommunications(SECRYPT), 427-432, 2007 Peer-reviewed
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SECRYPT 2007, Proceedings of the International Conference on Security and Cryptography, Barcelona, Spain, July 28-13, 2007, SECRYPT is part of ICETE - The International Joint Conference on e-Business and Telecommunications(SECRYPT), 281-288, 2007 Peer-reviewed
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SECRYPT 2007, Proceedings of the International Conference on Security and Cryptography, Barcelona, Spain, July 28-13, 2007, SECRYPT is part of ICETE - The International Joint Conference on e-Business and Telecommunications(SECRYPT), 204-213, 2007 Peer-reviewed
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E-business and Telecommunications - 4th International Conference, 214-226, 2007 Peer-reviewed
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Systems and Computers in Japan, 38(11) 49-63, 2007 Peer-reviewed
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IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 90-A(9) 1780-1787, 2007 Peer-reviewed
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IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 90-A(1) 139-151, 2007 Peer-reviewed
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The;th International;Symposium on Wireless Personal Multimedia Communications WP, 454-458, Sep, 2006 Peer-reviewed
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The 9th International Symposium on Wireless Personal Multimedia Communications WPMC2006, 1042-1046, Sep, 2006 Peer-reviewed
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The 7th International Workshop on Information Security Applications (WISA2006), 453-467, Aug, 2006 Peer-reviewed
Misc.
21-
2009 1-6, Oct 12, 2011
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Proceedings of the IEICE General Conference, 2010 139-139, Mar 2, 2010
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IEICE technical report, 109(114) 153-159, Jun 25, 2009Hash functions using stream ciphers as components perform fast on a variety of platforms. However, stream-cipher-based hash functions (SCHs) have not been studied sufficiently yet. In this paper, we present a model of SCHs consisting of two parts: a pre-computation phase and a stream cipher phase. We apply this model to existing broken SCHs, Abacus and Boole, and analyze the vulnerabilities corresponding to existing attacks for each part of our model. By applying our model to these algorithms, weak parts in the algorithms are revealed, and we show that these vulnerabilities can be removed by minor modifications to each part. Furthermore, we clarify the requirements for the pre-computation phase and the stream cipher phase to realize secure SCHs.
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Proceedings of the IEICE General Conference, 2009 177-177, Mar 4, 2009
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Proceedings of the IEICE General Conference, 592-592, 2008
Presentations
9Teaching Experience
1-
Oct, 2007 - Mar, 2012ICT security (Toyo University)
Research Projects
1-
科学研究費助成事業, 日本学術振興会, Apr, 2022 - Mar, 2025