Research Page

Currently with RCIS of AIST. My research interest majors in Information Theory, Cryptography and Physical (practical) Security.

I have been a co-referee for Elsevier journals, IEICE journals, AAECC journals, ETRI journals, IJICS journals, Journal of Universal Computer Science, and some international conferences: AAECC'06'07'08'09, ACISP'04'06, ACNS'04'05, APTC'08, ASIACCS'07, ASIACRYPT'06'08'09, CT-RSA'04'07, DRM'03, EUROCRYPT'08, EuroPKI'04'05, PKC'04'06, ICICS'04, ICISC'05'06, ICITS'08, INSCRYPT'07'09, ISA'10, ISPEC'07'09'10, ISIT'03'04'05'07'10, IWSec'07'08, PAIRING'07, ProvSec'08, TCC'09, WISA'06'07'08'09.

List of online publications. (See also my DBLP entry)

  1. Signcryption: Generic Constructions with Enhanced Privacy. R. Zhang, Manuscript.
  2. Constructing Better KEMs with Partial Message Recovery. R. Zhang and H. Imai. Extended abstract to appear in Inscrypt'09, Beijing, China.
  3. Generic Construction of Stateful Identity Based Encryption. P. Yang, R. Zhang, K. Matsuura, and H. Imai. Appeared in ISC'09, Pisa, Italy.
  4. A Generic Construction of Useful Client Puzzles. R. Zhang, G. Hanaoka and H. Imai., Appeared in ASIACCS'09, Sydney, Australia.
  5. Strong Anonymous Signatures. R. Zhang and H. Imai. Appeared in Inscrypt'08, Beijing, China. An extended abstract under the title "Strong Anonymous Signature" accepted in IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer, Vol.E92-A, No.10 pp.2487-2491, Oct. 2009.
  6. Generic Combination of Public Key Encryption with Keyword Search and Public Key Encryption. R. Zhang and H. Imai. CANS'07, Singapore. Full version appeared under the name "Combining Public Key Encryption with Keyword Search and Public Key Encryption", IEICE Transactions 92-D(5): 888-896, 2009
  7. Orthogonality between Key Privacy and Data Privacy, Revisited. R. Zhang, G. Hanaoka and H. Imai. Inscrypt'07, Xining, China.
  8. Tweaking TBE/IBE to PKE Transforms with Chameleon Hash Functions. Rui Zhang. Appeared in ACNS'07, Zhuhai, China. See also a revised full version here.
  9. Formal Security Treatments for IBE-to-Signature Transformation: Relations among Security Notions. Y. Cui, E. Fujisaki, G. Hanaoka, H. Imai and R. Zhang. Preliminary full version available as Eprint Report 2007/030. Extended abstract appeared in ProvSec'07, Wollongong, Australia. Full version appeared in IEICE Transactions 92-A(1): 53-66, 2009.
  10. Efficient Identity-Based Encryption with Tight Security Reduction. N. Attrapadung, J. Furukawa, T. Gomi, G. Hanaoka, H. Imai and R. Zhang. Extended abstract appeared in CANS'06, Suzhou, China. Full version appeared in IEICE Trans. Fundamentals, vol. E90-A, NO.9 September, 2007. Preliminary full version available from eprint. Proceeding version available from LNCS.
  11. Generic Transforms to Acquire CCA-Security for Identity Based Encryption: the Case of FOpkc and REACT. P. Yang, K. Kitagawa, G. Hanaoka, R. Zhang, H. Watanabe, K. Matsuura and H. Imai. Appeared in ACISP'06, Melbourne, Australia.
  12. Relations among Notions of Security for Identity Based Encryption Schemes. N. Attrapadung, Y. Cui, D. Galindo, G. Hanaoka, I. Hasuo, H. Imai, K. Matsuura, P. Yang and R. Zhang. Appeared in LATIN'06, Valdivia, Chile. Proceeding version available. This is a joint paper of independent papers Relations Among Notions of Security for Identity Based Encryption Schemes (Eprint report 2005/258) and Security Notions for Identity Based Encryption (Eprint report 2005/253).
  13. Applying Fujisaka-Okamoto to Identity Based Encryption. P. Yang, K. Kitagawa, G. Hanaoka, R. Zhang, K. Matsuura and H. Imai. Appeared in AAECC'06, Las Vigas, USA. Proceeding version available. It was also submitted to IEEE P1363.3: Identity-Based Public Key Cryptography.
  14. Improvements on security proofs of some identity based encryption schemes . R. Zhang and H. Imai. Extended abstract appeared in CISC'05, Beijing, China.
  15. Short Signature and Universal Designated Verifier Signature without Random Oracles. R. Zhang, J. Furukawa and H. Imai. Extended abstract appeared in ACNS'05, New York, USA.
  16. On the Security of Cryptosystems with All-or-Nothing Transform. R. Zhang, G. Hanaoka and H. Imai. Appeared in ACNS'04, Yellow Mountain, China. Full paper in submission.
  17. On the Security of Multiple Encryptions or CCA-Security+CCA-Security=CCA-Security? R. Zhang, G. Hanaoka, J. Shikata and H. Imai. Appeared in PKC'04, Sentosa Island, Singapore. Full version in construction.
  18. Round Optimal Distributed Key Generation of Threshold Cryptosystem Based on Discrete Logarithm Problem. R. Zhang and H. Imai. Appeared in ACNS'03. Kunming, China.
  19. Decomposable Commitment Scheme and Its Applications. R. Zhang and H. Imai. SITA2002, Japan.
  20. A Model for Signature Revocation. R. Zhang, M. Kudo, K. Matsuura and H. Imai. ISITA2002. Xi'an, China.
  21. Instance Revocation Regarding Digital Signature. R. Zhang, M. Kudo, K. Matsuura and H. Imai. SCIS2002, Japan.
  22. Homophonic Substitution and Its Application. R. Zhang and H. Imai. SITA2001, Japan.
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Last updated: 2009/11/04

visitors since 2006/12/26.