Journal of Communications and Networks

  • 제10권1호
  • /
  • Pages.10-17
  • /
  • 2008
  • /
  • 1229-2370(pISSN)
  • /
  • 1976-5541(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

Cryptanalysis and Improvement of an Efficient Certificateless Signature Scheme

  • Li, Jiguo (College of Computer and Information Engineering, Hohai University) ;
  • Huang, Xinyi (School of Computer Science & Software Engineering, University of Wollongong) ;
  • Mu, Yi (School of Computer Science & Software Engineering, University of Wollongong) ;
  • Wu, Wei (School of Computer Science & Software Engineering, University of Wollongong)
  • 발행 : 2008.03.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In traditional digital signature schemes, certificates signed by a trusted party are required to ensure the authenticity of the public key. In Asiacrypt 2003, the concept of certificateless signature scheme was introduced. The advantage of certificateless public key cryptography successfully eliminates the necessity of certificates in the traditional public key cryptography and simultaneously solves the inherent key escrow problem suffered in identity-based cryptography. Recently, Yap et al. proposed an efficient certificateless signature scheme and claimed that their scheme is existentially unforgeable in the random oracle model. In this paper, we show that the certificateless signature scheme proposed by Yap et al. is insecure against public key replacement attacks. Furthermore, we propose an improved certificateless signature scheme, which is existentially unforgeable against adaptive chosen message attacks under the computational Diffie-Hellman assumption in the random oracle model and provide the security proof of the proposed scheme.

키워드

참고문헌

  1. A. Shamir, 'Identity-based cryptosystems and signature schemes,' in Proc. Advances in Cryptology-Crypto'84, Lecture Notes in Computer Science 196, Aug. 1984, pp. 47-53
  2. S. S. Al-Riyami and K. G. Paterson, 'Certificateless public key cryptography,' in Proc. Advances in Cryptography-Asiacrypt2003, Lecture Notes in Computer Science 2894, Dec. 2003, pp. 452-473
  3. Z. F. Zhang, D. S.Wong, J. Xu, and D. G. Feng, 'Certificateless public-key signature: Security model and efficient construction,' in Proc. ACNS2006, Lecture Notes in Computer Science 3989, June 2006, pp. 293-308
  4. S. S. Al-Riyami and K. G. Paterson, 'CBE from CLPKE: A generic construction and efficient schemes,' in Proc. Public Key Cryptography, PKC2005, Lecture Notes in Computer Science 3386, Jan. 2005, pp. 398- 415
  5. J. Baek, R. Safavi-Naini, and W. Susilo,'Certificateless public key encryption without pairing,' in Proc. 8th Information Security Conference, ISC2005, Lecture Notes in Computer Science 3650, Sept. 2005, pp. 134- 148
  6. D. H. Yum and P. J. Lee,'Generic construction of certificateless encryption,' in Proc. ICCSA2004, Lecture Notes in Computer Science 3043, May 2004, pp. 802-811
  7. Z. Cheng and R. Comley, 'Efficient certificateless public key encryption,' Cryptology ePrint Archive. [Online]. Available: http://eprint.iacr.org/2005/012
  8. D. H. Yum and P. J. Lee, 'Generic construction of certificateless signature,' in Proc. Information Security and Privacy, ACISP2004, Lecture Notes in Computer Science 3108, July 2004, pp. 200-211
  9. W. S. Yap, S. H. Heng, and B. M. Goi, 'An efficient certificateless signature scheme,' in Proc. EUC Workshops2006, Lecture Notes in Computer Science 4097, Aug. 2006, pp. 322-331
  10. L. C. Wang, Z. F. Cao, X. X. Li, and H. F. Qian, 'Certificateless threshold signature schemes,' in Proc. CIS2005, Lecture Notes in Artifical Intelligence 3802, Dec. 2005, pp. 104-109
  11. X. Y. Huang, W. Susilo, Y. Mu, and F. T. Zhang, 'On the security of certificateless signature schemes from asiacrypt 2003,' in Proc. CANS2005, Lecture Notes in Computer Science 3810, Dec. 2005, pp. 13-25
  12. B. C. Hu, D. S. Wong, Z. F. Zhang, and X. T. Deng, 'Key replacement attack against a generic construction of certificateless signature,' in Proc. ACISP2006, Lecture Notes in Computer Science 4058, July 2006, pp. 235-246
  13. M. Bellare and P. Rogaway, 'Random oracles are practical: A paradigm for designing efficient protocols,' in Proc. ACM CCS'93, Nov. 1993, pp. 62-73
  14. D. Pointcheval and J. Stern, 'Security proofs for signature schemes,' in Proc. Advanced in Cryptology-Eurocrypt'96, Lecture Notes in Computer Science 1070, 1996, pp. 387-398
  15. D. Boneh, B. Lynn and H. Shacham, 'Short signatures from the weil pairing,' in Proc. Advances in Cryptology - Asiacrypt2001, Lecture Notes in Computer Science 2248, Dec. 2001, pp. 514-532
  16. J.S. Coron, 'On the exact security of full domain hash,' in Proc. Advances in Cryptology- Crypto2000, Lecture Notes in Computer Science 1880, Aug. 2000, pp. 229-235
  17. X. Y. Huang, Y. Mu, W. Susilo, D. S. Wong, and W. Wu, 'Certificateless signature revisited,' in Proc. ACISP2007, Lecture Notes in Computer Science 4586, July 2007, pp. 308-322
  18. Z. F. Zhang, and D. G. Feng, 'Key replacement attack on a certificateless signature scheme,' Cryptology ePrint Archive. [Online]. Available: http//eprint.iacr.org/2006/453