Security without identification: transaction systems to make big brother obsolete
Communications of the ACM
Ticket based service access for the mobile user
MobiCom '97 Proceedings of the 3rd annual ACM/IEEE international conference on Mobile computing and networking
Design and implementation of the idemix anonymous credential system
Proceedings of the 9th 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
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
Accountable Anonymous Access to Services in Mobile Communication Systems
SRDS '99 Proceedings of the 18th IEEE Symposium on Reliable Distributed Systems
Anonymous Connections and Onion Routing
SP '97 Proceedings of the 1997 IEEE Symposium on Security and Privacy
General-purpose digital ticket framework
WOEC'98 Proceedings of the 3rd conference on USENIX Workshop on Electronic Commerce - Volume 3
Blacklistable anonymous credentials: blocking misbehaving users without ttps
Proceedings of the 14th ACM conference on Computer and communications security
Privacy for public transportation
PET'06 Proceedings of the 6th international conference on Privacy Enhancing Technologies
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Electronic identity (eID) cards are deployed in an increasing number of countries. These cards often provide digital authentication and digital signature capabilities, but have at the same time serious privacy shortcomings. We can expect that ordering and issuing tickets for events (e.g. soccer matches) will be increasingly done using eID cards, hence, severely threatening the user's privacy. This paper proposes two alternative ticketing systems that are using the eID card in a bootstrap procedure, but still are providing a high degree of privacy to the user.