Efficient Publicly Verifiable Secret Sharing Schemes with Fast or Delayed Recovery
ICICS '99 Proceedings of the Second International Conference on Information and Communication Security
Efficient and Secure Member Deletion in Group Signature Schemes
ICISC '00 Proceedings of the Third International Conference on Information Security and Cryptology
CRYPTO '02 Proceedings of the 22nd 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
Wallet Databases with Observers
CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
Proofs of Partial Knowledge and Simplified Design of Witness Hiding Protocols
CRYPTO '94 Proceedings of the 14th Annual International Cryptology Conference on Advances in Cryptology
Proceedings of the 11th ACM conference on Computer and communications security
A secure and optimally efficient multi-authority election scheme
EUROCRYPT'97 Proceedings of the 16th annual international conference on Theory and application of cryptographic techniques
Efficient and generalized group signatures
EUROCRYPT'97 Proceedings of the 16th annual international conference on Theory and application of cryptographic techniques
Collision-free accumulators and fail-stop signature schemes without trees
EUROCRYPT'97 Proceedings of the 16th annual international conference on Theory and application of cryptographic techniques
On fair e-cash systems based on group signature schemes
ACISP'03 Proceedings of the 8th Australasian conference on Information security and privacy
Quasi-efficient revocation of group signatures
FC'02 Proceedings of the 6th international conference on Financial cryptography
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
Group signatures: better efficiency and new theoretical aspects
SCN'04 Proceedings of the 4th international conference on Security in Communication Networks
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A group signature scheme allows group members to issue signatures on behalf of the group, while hiding for each signature which group member actually issued it. Such scheme also involves a group manager, who is able to open any group signature by showing which group member issued it.We introduce the concept of list signatures as a variant of group signatures which sets a limit on the number of signatures each group member may issue. These limits must be enforced without having the group manager open signatures of honest group members--which excludes the trivial solution in which the group manager opens every signature to see whether some group members exceed their limits. Furthermore, we consider the problem of publicly identifying group members who exceed their limits, also without involving the group manager.