Research Achievements - Original paper -
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More efficient threshold signature scheme in gap Diffie-Hellman group
D.Nyang, A.Yamamura
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E92-A 1720 - 1723 2009.01 [Refereed]
Research paper (journal) International Co-author
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Quasicrystals and Tiling Semigroups
Akihiro Yamamura
ICMR 2009, CD Proceedings 183 - 188 2009.01
Research paper (journal)
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Updating Quantum Cryptography Report ver. 1
Donna Dodson, Mikio Fujiwara, Philippe Grangier, Masahito Hayashi, Kentaro Imafuku, Ken-ichi Kitayama, Prem Kumar, Christian Kurtsiefer, Gaby Lenhart, Norbert Luetkenhaus, Tsutomu Matsumoto, William J. Munro, Tsuyoshi Nishioka, Momtchil Peev, Masahide Sasaki, Yutaka Sata, Atsushi Takada, Masahiro Takeoka, Kiyoshi Tamaki, Hidema Tanaka, Yasuhiro Tokura, Akihisa Tomita, Morio Toyoshima, Rodney van Meter, Atsuhiro Yamagishi, Yoshihisa Yamamoto, Akihiro Yamamura
arXiv:0905.4325 2009.01
Research paper (journal)
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Classification of hash functions suitable for real-life systems
Y.Hirai, T.Kurokawa, S.Matsuo, H.Tanaka, A.Yamamura
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E91-A 64 - 73 2008.01
Research paper (journal)
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Current status of Japanese government PKI systems
Yasuo Miyakawa, Takashi Kurokawa, Akihiro Yamamura, Yasushi Matsumoto
EuroPKI 2008, LNCS, Springer-Verlag 5057 104 - 117 2008.01
Research paper (journal)
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Mechanism of homomorphic encryptions
A.Yamamura
数理解析研究所講究録 1604 31 - 36 2008.01
Research paper (journal)
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Privacy enhancing credentials
J.Nakazato, L.Wang, A.Yamamura
ASIAN2007, LNCS, Springer-Verlag, 4846 55 - 61 2007.01
Research paper (journal)
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Threshold anonymous group identification and zero-knowledge proof
A.Yamamura, T.Kurokawa, J.Nakazato
ACISP2007, LNCS, Springer-Verlag 4586 370 2007.01
Research paper (journal)
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Homomorphic encryptions of sums of groups
A.Yamamura
AAECC 2007, LNCS, Springer-Verlag 4851 357 - 366 2007.01
Research paper (journal)
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Asymmetric secret key ciphers and encrypted data retrieval schemes
A.Yamamura
数理解析研究所講究録 1562 2007.01
Research paper (journal)
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Embedding theorem for HNN extensions of inverse semigroups
A.Yamamura
Journal of Pure and Applied Algebra 210 521 2007.01
Research paper (journal)
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A certificate-based proxy cryptosystem with revocable proxy decryption power
L.Wang, J.Shao, Z.Cao, M.Mambo, A.Yamamura
Indocrypt 2007, LNCS, Springer-Verlag 4859 297 - 311 2007.01
Research paper (journal)
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Graph methods in inverse semigroups
数理解析研究所講究録 1503 64 - 69 2006.01
Research paper (journal)
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Classification of hash functions suitable for real-life systems
Y.Hirai, T.Kurokawa, S.Matsuo, H.Tanaka, A.Yamamura
Second Cryptographic Hash Workshop CD proceedeings 40558 2006.01
Research paper (journal)
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Schutzenberger graphs and embedding theorems
A.Yamamura
数理解析研究所講究録 1437 59 - 65 2005.01
Research paper (journal)
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Homomorphic encryption functions and cryptographic protocols
A.Yamamura, T.Kurokawa, T.Jajcayova
数理解析研究所講究録 1437 97 - 106 2005.01
Research paper (journal)
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Oblivious transfer and private information retrieval based on the p-subgroup assumption
A.Yamamura, T,Jajcayova, T.Kurokawa
SOFSEM 2005 Communications, Slovak Society for Computer Science 101 - 110 2005.01
Research paper (journal)
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A trial of the interception of display image using emanation of electromagnetic wave
H.Tanaka, O.Takizawa, A.Yamamura
Journal of the National Institute of Information and Communications Technology 52 213 - 223 2005.01
Research paper (journal)
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Secret sharing scheme using natural language text
O.Takizawa, K.Makino, A.Yamamura
Journal of the National Institute of Information and Communications Technology 52 173 - 183 2005.01
Research paper (journal)
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Error detection and authentication in quantum key destribution
A.Yamamura, Hirokazu Ishizuka
Journal of the National Institute of Information and Communications Technology 52 141 - 151 2005.01
Research paper (journal)