A public key cryptosystem and a signature scheme based on discrete logarithms
Proceedings of CRYPTO 84 on Advances in cryptology
STOC '87 Proceedings of the nineteenth annual ACM symposium on Theory of computing
Revokable and versatile electronic money (extended abstract)
CCS '96 Proceedings of the 3rd ACM conference on Computer and communications security
A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM
Efficient Identification and Signatures for Smart Cards
CRYPTO '89 Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology
CRYPTO '89 Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology
Efficient Group Signature Schemes for Large Groups (Extended Abstract)
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
An Efficient System for Non-transferable Anonymous Credentials with Optional Anonymity Revocation
EUROCRYPT '01 Proceedings of the International Conference on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
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
Digital Chips for an On-Line Casino
ITCC '05 Proceedings of the International Conference on Information Technology: Coding and Computing (ITCC'05) - Volume I - Volume 01
Publicly verifiable secret sharing
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
Secure distributed key generation for discrete-log based cryptosystems
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Efficient concurrent zero-knowledge in the auxiliary string model
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
Dynamic k-times anonymous authentication
ACNS'05 Proceedings of the Third international conference on Applied Cryptography and Network Security
Unique user-generated digital pseudonyms
MMM-ACNS'05 Proceedings of the Third international conference on Mathematical Methods, Models, and Architectures for Computer Network Security
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In this paper we propose three smartcard-based variants of anonymous authentication using unique one-time pseudonyms. The first variant can be used to authenticate a user. However, his identity cannot be revealed and linked to other pseudonyms unless solving the computational Diffie-Hellman problem. In the second variant a set R of revocation centers is able to revoke the anonymity in collaboration with a trust center T but they are not able to link the revealed identity to other pseudonyms of the same user. Using the third variant additionally provides linkability if R and T cooperate. Some selected applications for the proposed protocols include physical access control, secure auctions, eCoins and online gambling.