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Multicast and unicast traffic share and compete for network resources. To facilitate efficient and equitable resource allocation between traffic types, this paper advocates a cost-based approach to multicast pricing. When prices are set to reflect actual network resource consumption, market distortion is minimized. Additionally, this paper calls for pricing(More)
As our economy and critical infrastructure increasingly relies on the Internet, the insecurity of the underlying border gateway routing protocol (BGP) stands out as the Achilles heel. Recent misconfigurations and attacks have demonstrated the brittleness of BGP. Securing BGP has become a priority.In this paper, we focus on a viable deployment path to secure(More)
Netbill is a business model, set of protocols, and software implementation for commerce in information goods and other network delivered services. It has very low transaction costs for micropayments (around 1¢ for a 10¢ item), protects the privacy of the transaction, and is highly scalable. Of special interest is our new certified delivery mechanism which(More)
In this work we describe a method for fully distributed authentication using public key cryptography within the Kerberos ticket framework. By distributing most of the authentication workload away from the trusted intermediary and to the communicating parties, significant enhancements to security and scalability can be achieved as compared to Kerberos V5.(More)
Motivated by limitations in today's host-centric IP network, recent studies have proposed clean-slate network architectures centered around alternate first-class principals, such as content, services, or users. However, muchlike the host-centric IP design, elevating one principal type above others hinders communication between other principals and inhibits(More)
The Informedia Digital Video Library Project is developing new technologies for creating full-content search and retrieval digital video libraries. Working in collaboration with WQED Pittsburgh, the project is creating a testbed that will enable K-12 students to access, explore, and retrieve science and mathematics materials from the digital video library.(More)
This paper envisions a distributed network storage service with Quality-of-Service (QoS) guarantees, and describes its architecture and key mechanisms. When fully realized, this service architecture would be able to support, in one integrated framework, network storage services ranging from best-effort caching to replication with performance guarantees.(More)