How to prove yourself: practical solutions to identification and signature problems
Proceedings on Advances in cryptology---CRYPTO '86
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CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
Practical forward secure group signature schemes
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
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CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
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CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
CRYPTO '98 Proceedings of the 18th Annual International Cryptology Conference on Advances in Cryptology
An Efficient System for Non-transferable Anonymous Credentials with Optional Anonymity Revocation
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Unlinkable Divisible Electronic Cash
ISW '00 Proceedings of the Third International Workshop on Information Security
A Practical and Provably Secure Coalition-Resistant Group Signature Scheme
CRYPTO '00 Proceedings of the 20th Annual International Cryptology Conference on Advances in Cryptology
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
Efficient proofs that a committed number lies in an interval
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
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CCDC'09 Proceedings of the 21st annual international conference on Chinese Control and Decision Conference
Hyper-elliptic curves based group signature
CCDC'09 Proceedings of the 21st annual international conference on Chinese control and decision conference
Key management scheme with bionic optimization
IITA'09 Proceedings of the 3rd international conference on Intelligent information technology application
Hyper-elliptic curves based ring signature
IITA'09 Proceedings of the 3rd international conference on Intelligent information technology application
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In this paper, a group signature scheme committing the group itself is proposed. In normal group signature schemes, a group member can anonymously sign a message on behalf of a group, and the anonymity of the signature can be revoked by only a designated authority. Consider a situation that multiple groups exist. In the proposed scheme, the signature hides not only the identity of the signer, but also the identity of the group. The group can be specified by only the designated authority. This characteristic is useful for a user's committing his attribute in the application to anonymous statistical surveys of users' attributes. Another application is the anonymous authentication of the membership with the expiration.