Visible to the public A One-Way Proof-of-Work Protocol to Protect Controllers in Software-Defined Networks

TitleA One-Way Proof-of-Work Protocol to Protect Controllers in Software-Defined Networks
Publication TypeConference Paper
Year of Publication2016
AuthorsLi, Jingrui, Wolf, Tilman
Conference NameProceedings of the 2016 Symposium on Architectures for Networking and Communications Systems
PublisherACM
Conference LocationNew York, NY, USA
ISBN Number978-1-4503-4183-7
KeywordsAttack, composability, defense, denial-of-service, Internet, Metrics, network control systems, network control systems security, networked control systems, pubcrawl, Resiliency, security
Abstract

Connection setup in software-defined networks (SDN) requires considerable amounts of processing, communication, and memory resources. Attackers can target SDN controllers with simple attacks to cause denial of service. We proposed a defense mechanism based on a proof-of-work protocol. The key characteristics of this protocol, namely its one-way operation, its requirement for freshness in proofs of work, its adjustable difficulty, its ability to work with multiple network providers, and its use of existing TCP/IP header fields, ensure that this approach can be used in practice.

URLhttp://doi.acm.org/10.1145/2881025.2889481
DOI10.1145/2881025.2889481
Citation Keyli_one-way_2016