Abstract
A secure group signature is required to be anonymous, that is, given two group signatures generated by two different members on the same message or two group signatures generated by the same member on two different messages, they are indistinguishable except for the group manager. In this paper we prove the equivalence of a group signature’s anonymity and its indistinguishability against chosen ciphertext attacks if we view a group signature as an encryption of member identity. Particularly, we prove ACJT’s group signature is IND-CCA2 secure, so ACJT’s scheme is anonymous in the strong sense. The result is an answer to an open question in literature.
Supported by 973 Project of China (No. 2004CB318004), 863 Project of China (No. 2003AA144030) and NSFC90204016.
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References
Ateniese, G., Camenisch, J., Joye, M., Tsudik, G.: A practical and provably secure coalition-resistant group signature scheme. In: Bellare, M. (ed.) CRYPTO 2000. LNCS, vol. 1880, pp. 255–270. Springer, Heidelberg (2000)
Bellare, M., Micciancio, D., Warinschi, B.: Foundations of group signatures: Formal definitions, simplified requirements, and a construction based on general assumptions. In: Biham, E. (ed.) EUROCRYPT 2003. LNCS, vol. 2656, pp. 614–629. Springer, Heidelberg (2003)
Bellare, M., Shi, H., Zhang, C.: Foundations of group signatures: The case of dynamic groups. In: Menezes, A. (ed.) CT-RSA 2005. LNCS, vol. 3376, pp. 136–153. Springer, Heidelberg (2005)
Kiayias, A., Yung, M.: Group signatures: Provable security, efficient constructions and anonymity from trapdoor-holders, http://eprint.iacr.org/2004/076/
Kiayias, A., Yung, M.: Group signatures with efficient concurrent join. In: Cramer, R. (ed.) EUROCRYPT 2005. LNCS, vol. 3494, pp. 198–214. Springer, Heidelberg (2005)
Cramer, R., Shoup, V.: Design and analysis of practical public-key encryption schemes secure against adaptive chosen ciphertext attack. SIAM J. Comput. 33, 167–226 (2004)
Kiayias, A., Tsiounis, Y., Yung, M.: Traceable signatures. In: Cachin, C., Camenisch, J.L. (eds.) EUROCRYPT 2004. LNCS, vol. 3027, pp. 571–589. Springer, Heidelberg (2004)
Nguyen, L., Safavi-Naini, R.: Efficient and provably secure trapdoor-free group signature schemes from bilinear pairings. In: Lee, P.J. (ed.) ASIACRYPT 2004. LNCS, vol. 3329, pp. 372–386. Springer, Heidelberg (2004)
Gamal, T.E.: A public key cryptosystem and a signature scheme based on discrete logarithms. In: Blakely, G.R., Chaum, D. (eds.) CRYPTO 1984. LNCS, vol. 196, pp. 10–18. Springer, Heidelberg (1985)
Naor, M., Yung, M.: Public-key cryptosystems provably secure against chosen ciphertext attacks. In: 22nd Annual ACM Symposium on the Theory of Computing, pp. 427–437. ACM Press, New York (1990)
Abdalla, M., Warinschi, B.: On the minimal assumptions of group signature schemes. In: López, J., Qing, S., Okamoto, E. (eds.) ICICS 2004. LNCS, vol. 3269, pp. 1–13. Springer, Heidelberg (2004)
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Zhou, S., Lin, D. (2005). On Anonymity of Group Signatures. In: Hao, Y., et al. Computational Intelligence and Security. CIS 2005. Lecture Notes in Computer Science(), vol 3802. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11596981_19
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DOI: https://doi.org/10.1007/11596981_19
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