On blind signatures and perfect crimes
Computers and Security
Revokable and versatile electronic money (extended abstract)
CCS '96 Proceedings of the 3rd ACM conference on Computer and communications security
Digital payment systems with passive anonymity-revoking trustees
Journal of Computer Security
Digital Payment Systems with Passive Anonymity-Revoking Trustees
ESORICS '96 Proceedings of the 4th European Symposium on Research in Computer Security: Computer Security
Wallet Databases with Observers
CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
"Indirect Discourse Proof": Achieving Efficient Fair Off-Line E-cash
ASIACRYPT '96 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
FC '01 Proceedings of the 5th International Conference on Financial Cryptography
Anonymity Control in E-Cash Systems
FC '97 Proceedings of the First International Conference on Financial Cryptography
Self-Escrowed Cash against User Blackmailing
FC '00 Proceedings of the 4th International Conference on Financial Cryptography
EUROCRYPT'95 Proceedings of the 14th annual international conference on Theory and application of cryptographic techniques
Anonymity and accountability in self-organizing electronic communities
Proceedings of the 2002 ACM workshop on Privacy in the Electronic Society
Remote Electronic Voting with Revocable Anonymity
ICISS '09 Proceedings of the 5th International Conference on Information Systems Security
True trustworthy elections: remote electronic voting using trusted computing
ATC'11 Proceedings of the 8th international conference on Autonomic and trusted computing
Auditable envelopes: tracking anonymity revocation using trusted computing
TRUST'12 Proceedings of the 5th international conference on Trust and Trustworthy Computing
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Tracing is an important mechanism to prevent crimes in anonymous payment systems. However, it is also a threat to the customer's privacy as long as its application cannot be controlled. Relying solely on trusted third parties for tracing is inadequate, as there are no strong guarantees that deanonymizations are only applied legally. A recent tracing concept is auditable tracing, where the customer has the power to control the deanonymization. With auditable tracing no trust is required, while it offers comparable tracing mechanisms. We present the first off-line payment system with auditable tracing. Our payment system supports coin and owner tracing as well as self deanonymization in the case of blackmailing.