Untraceable off-line cash in wallet with observers
CRYPTO '93 Proceedings of the 13th annual international cryptology conference on Advances in cryptology
Untraceable electronic mail, return addresses, and digital pseudonyms
Communications of the ACM
A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM
Handbook of Applied Cryptography
Handbook of Applied Cryptography
PayWord and MicroMint: Two Simple Micropayment Schemes
Proceedings of the International Workshop on Security Protocols
Perspectives on Financial Cryptography
FC '97 Proceedings of the First International Conference on Financial Cryptography
ASIACRYPT '96 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
Fair blind threshold signatures in wallet with observers
Journal of Systems and Software
The advantages of elliptic curve cryptography for wireless security
IEEE Wireless Communications
A public key cryptosystem and a signature scheme based on discrete logarithms
IEEE Transactions on Information Theory
Anonymous channel and authentication in wireless communications
Computer Communications
Partially blind threshold signatures based on discrete logarithm
Computer Communications
Research note: Date attachable electronic cash
Computer Communications
Journal of Systems and Software
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Electronic Commerce Research and Applications
Payment frameworks for the purchase of electronic products and services
Computer Standards & Interfaces
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The electronic payment system is one of the most important success factors in electronic commerce. In this paper, we propose D-Cash, a practical and flexible date-attachment pre-paid e-cash scheme. Briefly speaking, there are three important dates, including the withdrawal date, the effective date and the deposit date, in an e-coin lifetime before it is deposited in the bank. In pre-paid systems, the withdrawal date and the effective date are important to customers and merchants if the interest of e-cash is considered. Although several pre-paid schemes for date-attachment have been proposed, the interest of e-cash during the withdrawal date and the effective date is ignored. In D-Cash, the interest of e-cash during the withdrawal date and the effective date is addressed for attracting customers to use the pre-paid e-cash schemes, the attachment and management of dates are more simple and flexible than other date-attachment e-cash schemes, and the untraceability property is also preserved.