On-line/off-line digital signatures
CRYPTO '89 Proceedings on Advances in cryptology
Digital newspapers explore marketing on the Internet
Communications of the ACM
Password authentication with insecure communication
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
Electronic Payment Systems
Foundations of Secure Computation
Foundations of Secure Computation
Authentication and Payment in Future Mobile Systems
ESORICS '98 Proceedings of the 5th European Symposium on Research in Computer Security
A Digital Signature Based on a Conventional Encryption Function
CRYPTO '87 A Conference on the Theory and Applications of Cryptographic Techniques on Advances in Cryptology
CRYPTO '89 Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology
HAVAL - A One-Way Hashing Algorithm with Variable Length of Output
ASIACRYPT '92 Proceedings of the Workshop on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
PayWord and MicroMint: Two Simple Micropayment Schemes
Proceedings of the International Workshop on Security Protocols
NetCard - A Practical Electronic-Cash System
Proceedings of the International Workshop on Security Protocols
Electronic Payments of Small Amounts
Proceedings of the International Workshop on Security Protocols
Electronic Lottery Tickets as Micropayments
FC '97 Proceedings of the First International Conference on Financial Cryptography
Experimenting with Electronic Commerce on the PalmPilot
FC '99 Proceedings of the Third International Conference on Financial Cryptography
Secure Billing for Mobile Information Services in UMTS
IS&N '98 Proceedings of the 5th International Conference on Intelligence and Services in Networks: Technology for Ubiquitous Telecom Services
The millicent protocols for electronic commerce
WOEC'95 Proceedings of the 1st conference on USENIX Workshop on Electronic Commerce - Volume 1
PayStar: A denomination flexible micropayment scheme
Information Sciences: an International Journal
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An one-way hash chain generated by the iterative use of a one-way hash function on a secret value has recently been widely employed to develop many practical cryptographic solutions, especially electronic micropayment schemes. In this paper, we propose a new concept called a weighted one-way hash chain. We then proceed to use the new concept to improve in a significant way the performance of micropayment schemes. We also show that the proposed technique is especially useful in implementing micropayment on a resource restrained computing device such as a hand-held computer.