• 390 Citations
  • 12 h-Index
1993 …2019
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Fingerprint Dive into the research topics where Takeshi Koshiba is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

Cryptography Engineering & Materials Science
Homomorphic Encryption Mathematics
Group Signature Mathematics
Revocation Mathematics
Privacy Preserving Mathematics
Polynomials Engineering & Materials Science
Pattern matching Engineering & Materials Science
Attack Mathematics

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Research Output 1993 2019

  • 390 Citations
  • 12 h-Index
  • 38 Conference contribution
  • 25 Article
  • 4 Chapter
  • 2 Editorial

Impossibility of perfectly-secure one-round delegated quantum computing for classical client

Morimae, T. & Koshiba, T., 2019 Mar 1, In : Quantum Information and Computation. 19, 3-4, p. 214-221 8 p.

Research output: Contribution to journalArticle

Quantum Computing
quantum computation
Servers
Network protocols
privacy

New assumptions on isogenous pairing groups with applications to attribute-based encryption

Koshiba, T. & Takashima, K., 2019 Jan 1, Information Security and Cryptology – ICISC 2018 - 21st International Conference, Revised Selected Papers. Lee, K. (ed.). Springer-Verlag, p. 3-19 17 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 11396 LNCS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pairing
Encryption
Cryptography
Attribute
Isogenies
3 Citations (Scopus)

Achieving almost-full security for lattice-based fully dynamic group signatures with verifier-local revocation

Perera, M. N. S. & Koshiba, T., 2018 Jan 1, Information Security Practice and Experience - 14th International Conference, ISPEC 2018, Proceedings. Kikuchi, H. & Su, C. (eds.). Springer-Verlag, p. 229-247 19 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 11125 LNCS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Group Signature
Revocation
Group Scheme
Signature Scheme
Registration

Achieving full security for lattice-based group signatures with verifier-local revocation

Perera, M. N. S. & Koshiba, T., 2018 Jan 1, Information and Communications Security - 20th International Conference, ICICS 2018, Proceedings. Blanc, G., Qing, S., Lu, R., Zhang, Z., Meddahi, A., Naccache, D., Xu, S. & Samarati, P. (eds.). Springer-Verlag, p. 287-302 16 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 11149 LNCS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Group Signature
Revocation
Anonymity
Traceability
Protein Kinase C

Achieving Strong Security and Verifier-Local Revocation for Dynamic Group Signatures from Lattice Assumptions

Perera, M. N. S. & Koshiba, T., 2018 Jan 1, Security and Trust Management - 14th International Workshop, STM 2018, Proceedings. Alcaraz, C., Katsikas, S. K. & Katsikas, S. K. (eds.). Springer-Verlag, p. 3-19 17 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 11091 LNCS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Group Signature
Revocation
Lattice vibrations
Joining
Group Scheme