Extensions of single-term coins
CRYPTO '93 Proceedings of the 13th annual international cryptology conference on Advances in cryptology
Untraceable off-line cash in wallet with observers
CRYPTO '93 Proceedings of the 13th annual international cryptology conference on Advances in cryptology
EUROCRYPT '93 Workshop on the theory and application of cryptographic techniques on Advances in cryptology
Proceedings of the 4th ACM conference on Computer and communications security
Resettable zero-knowledge (extended abstract)
STOC '00 Proceedings of the thirty-second annual ACM symposium on Theory of computing
Group Signatures and Their Relevance to Privacy-Protecting Off-Line Electronic Cash Systems
ACISP '99 Proceedings of the 4th Australasian Conference on Information Security and Privacy
Fair Electronic Cash Based on a Group Signature Scheme
ICICS '01 Proceedings of the Third International Conference on Information and Communications Security
Adaptive Security for Threshold Cryptosystems
CRYPTO '99 Proceedings of the 19th 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
ASIACRYPT '01 Proceedings of the 7th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
1-out-of-n Signatures from a Variety of Keys
ASIACRYPT '02 Proceedings of the 8th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
The Cramer-Shoup Strong-RSASignature Scheme Revisited
PKC '03 Proceedings of the 6th International Workshop on Theory and Practice in Public Key Cryptography: Public Key Cryptography
Linkability in Practical Electronic Cash Design
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
Group Blind Digital Signatures: A Scalable Solution to Electronic Cash
FC '98 Proceedings of the Second International Conference on Financial Cryptography
An Efficient Off-line Electronic Cash System Based On The Representation Problem.
An Efficient Off-line Electronic Cash System Based On The Representation Problem.
Universally Composable Security: A New Paradigm for Cryptographic Protocols
FOCS '01 Proceedings of the 42nd IEEE symposium on Foundations of Computer Science
Proceedings of the 11th ACM conference on Computer and communications security
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
A signature scheme with efficient protocols
SCN'02 Proceedings of the 3rd 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
Short linkable ring signatures for e-voting, e-cash and attestation
ISPEC'05 Proceedings of the First international conference on Information Security Practice and Experience
Separable linkable threshold ring signatures
INDOCRYPT'04 Proceedings of the 5th international conference on Cryptology in India
On the Portability of Generalized Schnorr Proofs
EUROCRYPT '09 Proceedings of the 28th Annual International Conference on Advances in Cryptology: the Theory and Applications of Cryptographic Techniques
Efficient dynamic k-times anonymous authentication
VIETCRYPT'06 Proceedings of the First international conference on Cryptology in Vietnam
Escrowed linkability of ring signatures and its applications
VIETCRYPT'06 Proceedings of the First international conference on Cryptology in Vietnam
Constant-size ID-based linkable and revocable-iff-linked ring signature
INDOCRYPT'06 Proceedings of the 7th international conference on Cryptology in India
Event-oriented k-times revocable-iff-linked group signatures
ACISP'06 Proceedings of the 11th Australasian conference on Information Security and Privacy
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In a group signature [19], any group member can sign on behalf of the group while remaining anonymous, but its identity can be traced in an future dispute investigation. Essentially all state-of-the-art group signatures implement the tracing mechnism by requiring the signer to escrow its identity to an Open Authority (OA) [2, 13, 4, 25, 5, 7, 24]. We call them Tracing-by-Escrowing (TbE) group signatures. One drawback is that the OA also has the unnecessary power to trace without proper cause. In this paper we introduce Tracing-by-Linking (TbL) group signatures. The signer's anonymity is irrevocable by any authority if the group member signs only once (per event). But if a member signs twice, its identity can be traced by a public algorithm without needing any trapdoor. We initiate the formal study of TbL group signatures by introducing its security model, constructing the first examples, and give several applications. Our core construction technique is the successful transplant of the TbL technique from single-term offline e-cash from the blind signature framework [9, 22, 21] to the group signature framework. Our signatures have size O(1).