CCS '94 Proceedings of the 2nd ACM Conference on Computer and communications security
Security of Blind Digital Signatures (Extended Abstract)
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
Blinding of Credit Card Numbers in the SET Protocol
FC '99 Proceedings of the Third International Conference on Financial Cryptography
Group Blind Digital Signatures: A Scalable Solution to Electronic Cash
FC '98 Proceedings of the Second International Conference on Financial Cryptography
Electronic cash on the Internet
SNDSS '95 Proceedings of the 1995 Symposium on Network and Distributed System Security (SNDSS'95)
A signature scheme with efficient protocols
SCN'02 Proceedings of the 3rd international conference on Security in communication networks
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Efficient blind and partially blind signatures without random oracles
TCC'06 Proceedings of the Third conference on Theory of Cryptography
Design, implementation, and deployment of the iKP secure electronic payment system
IEEE Journal on Selected Areas in Communications
Privacy-preserving, taxable bank accounts
ESORICS'10 Proceedings of the 15th European conference on Research in computer security
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Credit cards have many important benefits; however, these same benefits often carry with them many privacy concerns. In particular, the need for users to be able to monitor their own transactions, as well as bank's need to justify its payment requests from cardholders, entitle the latter to maintain a detailed log of all transactions its credit card customers were involved in. A bank can thus build a profile of each cardholder even without the latter's consent. In this paper, we present a practical and accountable anonymous credit system based on ecash, with a privacy preserving mechanism for error correction and expense-reporting.