Proceedings of the tenth annual ACM-SIAM symposium on Discrete algorithms
Provably authenticated group Diffie-Hellman key exchange
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
Efficient and Secure Member Deletion in Group Signature Schemes
ICISC '00 Proceedings of the Third International Conference on Information Security and Cryptology
Separability and Efficiency for Generic Group Signature Schemes
CRYPTO '99 Proceedings of the 19th Annual International Cryptology Conference on Advances in Cryptology
Dynamic Accumulators and Application to Efficient Revocation of Anonymous Credentials
CRYPTO '02 Proceedings of the 22nd Annual International Cryptology Conference on Advances in Cryptology
Statistical Zero Knowledge Protocols to Prove Modular Polynomial Relations
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
Efficient Group Signature Schemes for Large Groups (Extended Abstract)
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
A Group Signature Scheme with Improved Efficiency
ASIACRYPT '98 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
How to Convert any Digital Signature Scheme into a Group Signature Scheme
Proceedings of the 5th International Workshop on Security Protocols
Efficient Revocation in Group Signatures
PKC '01 Proceedings of the 4th International Workshop on Practice and Theory in Public Key Cryptography: Public Key Cryptography
A Practical and Provably Secure Coalition-Resistant Group Signature Scheme
CRYPTO '00 Proceedings of the 20th Annual International Cryptology Conference on Advances in Cryptology
Efficient and generalized group signatures
EUROCRYPT'97 Proceedings of the 16th annual international conference on Theory and application of cryptographic techniques
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
Quasi-efficient revocation of group signatures
FC'02 Proceedings of the 6th international conference on Financial cryptography
Group signatures with separate and distributed authorities
SCN'04 Proceedings of the 4th international conference on Security in Communication Networks
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Group signature schemes allow a group member to sign messages anonymously on behalf of the group. During last decade, group signature schemes have been intensively investigated in the literature and applied to various applications. Especially, as noted in [3], the complexity of member deletion stands in the way of real world applications of group signatures. In this paper, we propose a group signature scheme with an efficient member revocation procedure. The proposed scheme is based on the scheme [18], which was turned out to be flawed [21]. We modify the scheme in [18] so as to obtain secure and efficient member revocation and unlinkability of signatures. Our revocation method is an improvement over the work of Camenisch and Lysyanskaya [9], which is known to be the most efficient scheme so far.