CITP Seminar: Witness Chain: Proofs of Bandwidth for Trust-Free Wireless Networking
A distinguishing feature of a decentralized network is incentives that reward the level of participation, setting up a “hotspot”, providing backhaul and network connectivity, replacing the traditional centralized reputation of the network. A “network meritocracy”, where anyone can participate in network operation and get rewarded based on their performance, depends crucially on trust-free telemetry, a “proof of bandwidth” system, a new scientific discipline at the intersection of applied cryptography, interactive protocols and networking.
In this talk we showcase two proofs of bandwidths: the first, Proof of Backhaul, is a trust-free speed test where the challengers neither need to be trusted or even have a low latency and high throughput connection to the challenged link. The protocol is a reincarnation of classical Internet telemetry tools of ping and iperf with Byzantine fault tolerant properties. The second, Proof of Service, enables trust-free measurement of network service quality (data, throughput) between a pair of links. Both protocols are naturally implemented via smart contracts and scalable state channels, two essential web 3.0 primitives.
Bio: Pramod Viswanath recently joined Princeton as the Forrest G. Hamrick Professor in Engineering in the Electrical and Computer Engineering department. He received his Ph.D. in electrical engineering and computer science from University of California at Berkeley. He was a member of the research staff at Flarion Technologies and a faculty member at the University of Illinois at Urbana Champaign in Electrical and Computer Engineering.
His current research interests are in blockchains. He is a co-founder of Kaleidoscope Blockchain Inc.
To request accommodations for a disability please contact Jean Butcher, firstname.lastname@example.org, at least one week prior to the event.
This talk will be recorded and posted here, on the CITP YouTube channel and on the Princeton University Media Central website.