Identity-based cryptosystems and signature schemes
Proceedings of CRYPTO 84 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
Accountable-subgroup multisignatures: extended abstract
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
Non-Interactive and Information-Theoretic Secure Verifiable Secret Sharing
CRYPTO '91 Proceedings of the 11th 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
A Practical and Provably Secure Coalition-Resistant Group Signature Scheme
CRYPTO '00 Proceedings of the 20th Annual International Cryptology Conference on Advances in Cryptology
FOCS '99 Proceedings of the 40th Annual Symposium on Foundations of Computer Science
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
On fair e-cash systems based on group signature schemes
ACISP'03 Proceedings of the 8th Australasian conference on Information security and privacy
INDOCRYPT'05 Proceedings of the 6th international conference on Cryptology in India
A universally composable scheme for electronic cash
INDOCRYPT'05 Proceedings of the 6th international conference on Cryptology in India
A verifiable random function with short proofs and keys
PKC'05 Proceedings of the 8th international conference on Theory and Practice in Public Key Cryptography
Accumulators from bilinear pairings and applications
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
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Tracing-by-linking group signatures
ISC'05 Proceedings of the 8th international conference on Information Security
Separable linkable threshold ring signatures
INDOCRYPT'04 Proceedings of the 5th international conference on Cryptology in India
k-times anonymous authentication with a constant proving cost
PKC'06 Proceedings of the 9th international conference on Theory and Practice of Public-Key Cryptography
A new delegation-based authentication protocol for use in portable communication systems
IEEE Transactions on Wireless Communications
PPAA: peer-to-peer anonymous authentication
ACNS'08 Proceedings of the 6th international conference on Applied cryptography and network security
Constant-size ID-based linkable and revocable-iff-linked ring signature
INDOCRYPT'06 Proceedings of the 7th international conference on Cryptology in India
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In this paper, we introduce the notion of event-oriented k-times revocable if and only if linked group signatures (k-EoRiffL group signatures). In k-EoRiffL group signatures, signers can sign on behalf of a group anonymously and unlinkably up to a permitted number of times (k) per event. No party, even the group manager, can revoke the anonymity of the signer. On the other hand, everyone can identify the signer if he signs more than k times for a particular event. We then show that k-EoRiffL group signatures can be used for k-times anonymous authentication(k-TAA), compact e-cash, e-voting, etc. We formally define security model for the new notion and propose constant-size construction, that is, size of our construction is independent of the size of the group and the number of permitted usage k. Our construction is secure based on the q-strong Diffie-Hellman assumption and the y-DDHI assumption.