Practical forward secure group signature schemes
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
Handbook of Applied Cryptography
Handbook of Applied Cryptography
Efficient Group Signature Schemes for Large Groups (Extended Abstract)
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
A Practical Public Key Cryptosystem Provably Secure Against Adaptive Chosen Ciphertext Attack
CRYPTO '98 Proceedings of the 18th Annual International Cryptology Conference on Advances in Cryptology
Some Open Issues and New Directions in Group Signatures
FC '99 Proceedings of the Third International Conference on Financial 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
Group signatures with verifier-local revocation
Proceedings of the 11th ACM conference on Computer and communications security
An Efficient Group Signature Scheme from Bilinear Maps
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
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
Extracting group signatures from traitor tracing schemes
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
Dynamic fully anonymous short group signatures
VIETCRYPT'06 Proceedings of the First international conference on Cryptology in Vietnam
Verifier-Local revocation group signature schemes with backward unlinkability from bilinear maps
ASIACRYPT'05 Proceedings of the 11th international conference on Theory and Application of Cryptology and Information Security
An efficient group signature scheme from bilinear maps
ACISP'05 Proceedings of the 10th Australasian conference on Information Security and Privacy
Group signatures with separate and distributed authorities
SCN'04 Proceedings of the 4th international conference on Security in Communication Networks
Group signatures: better efficiency and new theoretical aspects
SCN'04 Proceedings of the 4th international conference on Security in Communication Networks
Foundations of group signatures: the case of dynamic groups
CT-RSA'05 Proceedings of the 2005 international conference on Topics in Cryptology
Implementing cryptographic pairings
Pairing'07 Proceedings of the First international conference on Pairing-Based Cryptography
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We propose a simple and efficient group signature scheme assuming tamperproof devices, which is based only on the DDH assumption and the Random Oracle. Compared to the state-of-the-art group signature schemes of [9, 13, 15], although the proposed scheme does not have coalition resistance and exculpability thus requires tamperproof devices, it is about twice faster in signature generation in exchange. It is also efficient in signature size and signing key size. Even though the application of the proposed scheme is not extensive, it can be much more suitable than previous schemes for platforms with tamperproofness and limited resources such as smart cards or mobile phones. Our approach is important in designing group signature schemes (with some restrictions) in the sense that it has shown a concrete construction that one can build a better scheme by carefully considering redundant properties for required security level of given platform. The proposed scheme also supports Verifier Local Revocation, Self-Traceability and weaker version of Non-Frameability.