NetCash: a design for practical electronic currency on the Internet
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
A Payment Scheme Using Vouchers
FC '98 Proceedings of the Second International Conference on Financial Cryptography
FC '98 Proceedings of the Second International Conference on Financial Cryptography
Experimenting with Electronic Commerce on the PalmPilot
FC '99 Proceedings of the Third International Conference on Financial Cryptography
Requirements for network payment: the NetCheque perspective
COMPCON '95 Proceedings of the 40th IEEE Computer Society International Conference
Decentralized Trust Management
SP '96 Proceedings of the 1996 IEEE Symposium on Security and Privacy
VarietyCash: a multi-purpose electronic payment system
WOEC'98 Proceedings of the 3rd conference on USENIX Workshop on Electronic Commerce - Volume 3
NetCents: a lightweight protocol for secure micropayments
WOEC'98 Proceedings of the 3rd conference on USENIX Workshop on Electronic Commerce - Volume 3
SWAPEROO: a simple wallet architecture for payments, exchanges, refunds, and other operations
WOEC'98 Proceedings of the 3rd conference on USENIX Workshop on Electronic Commerce - Volume 3
NetBill security and transaction protocol
WOEC'95 Proceedings of the 1st conference on USENIX Workshop on Electronic Commerce - Volume 1
iKP: a family of secure electronic payment protocols
WOEC'95 Proceedings of the 1st conference on USENIX Workshop on Electronic Commerce - Volume 1
A set of protocols for micropayments in distributed systems
WOEC'95 Proceedings of the 1st conference on USENIX Workshop on Electronic Commerce - Volume 1
The millicent protocols for electronic commerce
WOEC'95 Proceedings of the 1st conference on USENIX Workshop on Electronic Commerce - Volume 1
Pastiche: making backup cheap and easy
ACM SIGOPS Operating Systems Review - OSDI '02: Proceedings of the 5th symposium on Operating systems design and implementation
Samsara: honor among thieves in peer-to-peer storage
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
Pastiche: making backup cheap and easy
OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
WebSOS: an overlay-based system for protecting web servers from denial of service attacks
Computer Networks: The International Journal of Computer and Telecommunications Networking - Web security
Mobile Local Macropayments: Security and Prototyping
IEEE Pervasive Computing
Automating security configuration for the Grid
Scientific Programming - International Symposium of Parallel and Distributed Computing & International Workshop on Algorithms, Models and Tools for Parallel Computing on Heterogenous Networks
Building trust in peer-to-peer systems: a review
International Journal of Security and Networks
Decentralized access control in distributed file systems
ACM Computing Surveys (CSUR)
Quantifying Resistance to the Sybil Attack
Financial Cryptography and Data Security
Merx: Secure and Privacy Preserving Delegated Payments
Trust '09 Proceedings of the 2nd International Conference on Trusted Computing
WebSOS: an overlay-based system for protecting web servers from denial of service attacks
Computer Networks: The International Journal of Computer and Telecommunications Networking - Web security
A market-based bandwidth charging framework
ACM Transactions on Internet Technology (TOIT)
Experience with the keynote trust management system: applications and future directions
iTrust'03 Proceedings of the 1st international conference on Trust management
Fileteller: paying and getting paid for file storage
FC'02 Proceedings of the 6th international conference on Financial cryptography
Authorisation subterfuge by delegation in decentralised networks
Proceedings of the 13th international conference on Security protocols
A logic for analysing subterfuge in delegation chains
FAST'05 Proceedings of the Third international conference on Formal Aspects in Security and Trust
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We introduce a new micropayment scheme, suitable for certain kinds of transactions, that requires neither online transactions nor trusted hardware for either the payer or payee. Each payer is periodically issued certified credentials that encode the type of transactions and circumstances under which payment can be guaranteed. A risk management strategy, taking into account the payers' history, and other factors, can be used to generate these credentials in a way that limits the aggregated risk of uncollectable or fraudulent transactions to an acceptable level. These credentials can also permit or restrict types of purchases. We show a practical architecture for such a system that uses a Trust Management System to encode the credentials and policies. We describe a prototype implementation of the system in which vending machine purchases are made using consumer PDAs.