计算机科学 ›› 2016, Vol. 43 ›› Issue (2): 179-182.doi: 10.11896/j.issn.1002-137X.2016.02.039
余家福,仲红,汪益民
YU Jia-fu, ZHONG Hong and WANG Yi-min
摘要： 周福才等利用组合阶双线性群理论和非交互式零知识证明理论构建了一个基于BMW模型的高效组签名方案,解决了传统组签名方案通信效率低、不能抵抗选择密文攻击等问题。然而研究发现该方案在正确性方面存在不足:验证者不能正确地验证签名者的身份,进而无法完成后续的签名验证操作。据此提出了一个改进方案,并给出了严格的安全性证明,通过增加身份信息的承诺值及对应的非交互式零知识证明,修正了原方案中的缺陷。最后将该改进方案与同类其他方案在安全性和效率方面进行了分析与比较,结果表明该改进方案在保证高效性和安全性的前提下解决了原方案中存在的问题。
| [1] Chaum D,Van Heyst E.Group signatures[M]∥Advances in Cryptology-EUROCRYPT’91.Springer Berlin Heidelberg,1991:257-265 [2] Bellare M,Rogaway P.Random oracles are practical:A paradigm for designing efficient protocols[C]∥Proceedings of the 1st ACM Conference on Computer and Communications Security.ACM,1993:62-73 [3] Canetti R,Goldreich O,Halevi S.The random oracle methodology,revisited[J].Journal of the ACM (JACM),2004,51(4):557-594 [4] Bellare M,Micciancio D,Warinschi B.Foundations of group signatures:Formal definitions,simplified requirements,and a construction based on general assumptions [M]∥Advances in Cryptology-Eurocrypt 2003.Springer Berlin Heidelberg,2003:614-629 [5] Boyen X,Waters B.Full-domain subgroup hiding and constant-size group signatures[M]∥Public Key Cryptography-PKC 2007.Springer Berlin Heidelberg,2007:1-15 [6] Groth J,Ostrovsky R,Sahai A.Non-interactive zaps and newtechniques for NIZK[M]∥Advances in Cryptology-CRYPTO 2006.Springer Berlin Heidelberg,2006:97-111 [7] Groth J.Fully anonymous group signatures without random oracles[M]∥Advances in Cryptology-ASIACRYPT 2007.Springer Berlin Heidelberg,2007:164-180 [8] Emura K,Hanaoka G,Sakai Y.Group signature implies PKE with non-interactive opening and threshold PKE[M]∥Advances in Information and Computer Security.Springer Berlin Heidelberg,2010:181-198 [9] Wei L,Liu J.Shorter verifier-local revocation group signaturewith backward unlinkability[M]∥Pairing-Based Cryptography-Pairing 2010.Springer Berlin Heidelberg,2010:136-146 [10] Libert B,Vergnaud D.Group signatures with verifier-localrevocation and backward unlinkability in the standard model[M]∥Cryptology and Network Security.Springer Berlin Heidelberg,2009:498-517 [11] Groth J,Ostrovsky R,Sahai A.Perfect non-interactive zeroknowledge for NP[M]∥Advances in Cryptology-EUROCRYPT 2006.Springer Berlin Heidelberg,2006:339-358 [12] Yang G,Tang S,Yang L.A novel group signature scheme based on mpkc[M]∥Information Security Practice and Experience.Springer Berlin Heidelberg,2011:181-195 [13] Zhou F C,Xu J,Wang L L,et al.A group signature in the composite order bilinear groups[J].Chinese Journal of Computers,2012,35(4):654-663(in Chinese) 周福才,徐剑,王兰兰,等.基于组合阶双线性群的组签名方案[J].计算机学报,2012,35(4):654-663 [14] Lewko A,Waters B.New techniques for dual system encryption and fully secure HIBE with short ciphertexts [M]∥Theory of Cryptography.Springer Berlin Heidelberg,2010:455-479 [15] Groth J,Sahai A.Efficient non-interactive proof systems for bilinear groups[M]∥Advances in Cryptology-EUROCRYPT 2008.Springer Berlin Heidelberg,2008:415-432 |
| No related articles found! |
|
||
首页