CRYPTO '88 Proceedings on Advances in cryptology
Disposable zero-knowledge authentications and their applications to untraceable electronic cash
CRYPTO '89 Proceedings on Advances in cryptology
Extensions of single-term coins
CRYPTO '93 Proceedings of the 13th annual international cryptology conference 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
EUROCRYPT '93 Workshop on the theory and application of cryptographic techniques on Advances in cryptology
Revokable and versatile electronic money (extended abstract)
CCS '96 Proceedings of the 3rd ACM conference on Computer and communications security
An efficient fair payment system
CCS '96 Proceedings of the 3rd ACM conference on Computer and communications security
Trustee-based tracing extensions to anonymous cash and the making of anonymous change
Proceedings of the sixth annual ACM-SIAM symposium on Discrete algorithms
Off-Line Electronic Cash Based on Secret-Key Certificates
LATIN '95 Proceedings of the Second Latin American Symposium on Theoretical Informatics
Digital Payment Systems with Passive Anonymity-Revoking Trustees
ESORICS '96 Proceedings of the 4th European Symposium on Research in Computer Security: Computer Security
CRYPTO '91 Proceedings of the 11th Annual International Cryptology Conference on Advances in Cryptology
Provably Secure and Practical Identification Schemes and Corresponding Signature Schemes
CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
An Efficient Divisible Electronic Cash Scheme
CRYPTO '95 Proceedings of the 15th 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
Anonymity Control in E-Cash Systems
FC '97 Proceedings of the First International Conference on Financial Cryptography
Off-Line Cash Transfer by Smart Cards.
Off-Line Cash Transfer by Smart Cards.
Ripping coins for a fair exchange
EUROCRYPT'95 Proceedings of the 14th annual international conference on Theory and application of cryptographic techniques
Location management for mobile commerce applications in wireless Internet environment
ACM Transactions on Internet Technology (TOIT)
Distributed architectures for electronic cash schemes: a survey
International Journal of Parallel, Emergent and Distributed Systems
IWSEC'07 Proceedings of the Security 2nd international conference on Advances in information and computer security
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We propose a practical mobile electronic cash system that combines macro and micropayment mechanisms and offers very high security and user's privacy protection. Notably, we have developed an innovative fair withdrawal and change return protocols, which are efficient and preclude any fraudulent misbehaviors, while user anonymity and transaction unlinkability are preserved. Coins are withdrawn if, and only if payer's account is debited. Change is returned to an anonymous payer, who gets it always but only if she is entitled to receive it. Wiretapping of even all channels does not yield a valid coin, and a payment can not be deposited at the account of another payee. Lost or stolen coins are blacklisted immediately and their value is recovered. No cooperation of dishonest participants gives any advantage. A prototype implementation proved that the system is efficient and convenient.