Abstract
Compared to conventional ring signature schemes, conditionally anonymous ring signatures allow to revoke the anonymity of actual signer without the group manager’s help if necessary. When the actual signer intends to confirm his role, it can be proved by a confirmation algorithm. In addition, any user, who is in a ring but not signer, can claim this through a disavowal algorithm. There were several proposals which were proved secure in random oracles. In other words, the security of such schemes depends on the randomness of hash functions. Recently, Zeng et al. proposed a generic construction of conditionally anonymous ring signature scheme without random oracles. Their scheme relies on NIZKs and pseudorandom functions, which render it to be inefficient. This paper proposes a practical ring signature scheme with traceability without random oracles in the common reference string model.
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References
Boneh, D., Boyen, X.: Short Signatures Without Random Oracles. In: Cachin, C., Camenisch, J.L. (eds.) EUROCRYPT 2004. LNCS, vol. 3027, pp. 56–73. Springer, Heidelberg (2004)
Boneh, D., Goh, E.-J., Nissim, K.: Evaluating 2-DNF Formulas on Ciphertexts. In: Kilian, J. (ed.) TCC 2005. LNCS, vol. 3378, pp. 325–341. Springer, Heidelberg (2005)
Canetti, R., Goldreich, O., Halevi, S.: The Random Oracle Methodology. In: STOC 1998, pp. 209–218. ACM (1998)
Chandran, N., Groth, J., Sahai, A.: Ring Signatures of Sub-linear Size Without Random Oracles. In: Arge, L., Cachin, C., Jurdziński, T., Tarlecki, A. (eds.) ICALP 2007. LNCS, vol. 4596, pp. 423–434. Springer, Heidelberg (2007)
Chaum, D., van Heyst, E.: Group Signatures. In: Davies, D.W. (ed.) EUROCRYPT 1991. LNCS, vol. 547, pp. 257–265. Springer, Heidelberg (1991)
Groth, J., Ostrovsky, R., Sahai, A.: Perfect Non-interactive Zero Knowledge for NP. In: Vaudenay, S. (ed.) EUROCRYPT 2006. LNCS, vol. 4004, pp. 339–358. Springer, Heidelberg (2006)
Groth, J., Sahai, A.: Efficient Non-interactive Proof Systems for Bilinear Groups. In: Smart, N. (ed.) EUROCRYPT 2008. LNCS, vol. 4965, pp. 415–432. Springer, Heidelberg (2008)
Komano, Y., Ohta, K., Shimbo, A., Kawamura, S.-I.: Toward the Fair Anonymous Signatures: Deniable Ring Signatures. In: Pointcheval, D. (ed.) CT-RSA 2006. LNCS, vol. 3860, pp. 174–191. Springer, Heidelberg (2006)
Rivest, R.L., Shamir, A., Tauman, Y.: How to Leak a Secret. In: Boyd, C. (ed.) ASIACRYPT 2001. LNCS, vol. 2248, pp. 552–565. Springer, Heidelberg (2001)
Shacham, H., Waters, B.: Efficient Ring Signatures Without Random Oracles. In: Okamoto, T., Wang, X. (eds.) PKC 2007. LNCS, vol. 4450, pp. 166–180. Springer, Heidelberg (2007)
Wu, Q., Susilo, W., Mu, Y., Zhang, F.: Ad Hoc Group Signatures. In: Yoshiura, H., Sakurai, K., Rannenberg, K., Murayama, Y., Kawamura, S.-I. (eds.) IWSEC 2006. LNCS, vol. 4266, pp. 120–135. Springer, Heidelberg (2006)
Zeng, S., Jiang, S., Qin, Z.: A New Conditionally Anonymous Ring Signature. In: Fu, B., Du, D.-Z. (eds.) COCOON 2011. LNCS, vol. 6842, pp. 479–491. Springer, Heidelberg (2011)
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Zeng, S., Qin, Z., Lu, Q., Li, Q. (2012). Efficient and Random Oracle-Free Conditionally Anonymous Ring Signature. In: Takagi, T., Wang, G., Qin, Z., Jiang, S., Yu, Y. (eds) Provable Security. ProvSec 2012. Lecture Notes in Computer Science, vol 7496. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33272-2_3
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DOI: https://doi.org/10.1007/978-3-642-33272-2_3
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