Publication

Handling Identity in Peer-to-Peer Systems

Karl Aberer
2003
Conference Papers

Abstract

Due to the limited number of available IP addresses most computers on the Internet use dynamic IP addresses which causes problems for applications that have to maintain rout-ing tables, for example, peer-to-peer systems. To overcome this we propose unique peer identifiers in the routing tables and apply the peer-to-peer system itself to maintain consis-tent id-to-IP mappings to be used in the routing process. While this may sound like a recursive hen-egg problem we show that it is in fact possible to devise such a mapping service for realistic scenarios. Our approach is completely decentralized, self-maintaining, and light-weight. It takes into account security to provide sufficient security guaran-tees for the mappings. We also assume that the service op-erates in an environment with low online probability of the peers constituting the service

Official source

https://infoscience.epfl.ch/entities/publication/ba636aca-09f9-4595-afa2-b32f1dcd7055

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Karl Aberer
2003
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/ba636aca-09f9-4595-afa2-b32f1dcd7055

About this result

Related concepts (32)

IP address

An Internet Protocol address (IP address) is a numerical label such as 192.0.2.1 that is connected to a computer network that uses the Internet Protocol for communication. An IP address serves two main functions: network interface identification, and location addressing. Internet Protocol version 4 (IPv4) defines an IP address as a 32-bit number. However, because of the growth of the Internet and the depletion of available IPv4 addresses, a new version of IP (IPv6), using 128 bits for the IP address, was standardized in 1998.

Peer-to-peer

Peer-to-peer (P2P) computing or networking is a distributed application architecture that partitions tasks or workloads between peers. Peers are equally privileged, equipotent participants in the network. This forms a peer-to-peer network of nodes. Peers make a portion of their resources, such as processing power, disk storage or network bandwidth, directly available to other network participants, without the need for central coordination by servers or stable hosts.

Routing

Routing is the process of selecting a path for traffic in a network or between or across multiple networks. Broadly, routing is performed in many types of networks, including circuit-switched networks, such as the public switched telephone network (PSTN), and computer networks, such as the Internet. In packet switching networks, routing is the higher-level decision making that directs network packets from their source toward their destination through intermediate network nodes by specific packet forwarding mechanisms.

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Handling Identity in Peer-to-Peer Systems

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