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VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Towards Digital Trust at Scale
DTSTART:20190219T100000
DTEND:20190219T120000
DTSTAMP:20260408T020108Z
UID:fcd710bdec2a02d288473be5a3253ee4c9bc53fc4f4c3411cd618900
CATEGORIES:Conferences - Seminars
DESCRIPTION:Philipp Jovanovic\nAbstract\nThe history of the Internet serve
 s both as an inspiration on how much value can be created when building sy
 stems on top of open\, neutral\, and fair protocols but also as a warning 
 that placing too much trust and power in a small number of for-profit orga
 nizations might turn into an existential threat to the democratic foundati
 ons of our society.\n \nPermissionless distributed ledgers\, or blockchai
 ns\, have the potential to reduce dependencies on trusted intermediaries a
 nd enable the creation of systems which facilitate and simplify collaborat
 ion between mutually distrustful parties on a global scale. However\, the 
 widespread adoption of such distributed ledger technologies has been inhib
 ited in particular by scalability issues in terms of the total transaction
  processing volume\, transaction confirmation latency\, and the number of 
 independent participants involved in transaction processing.\n \nIn this 
 talk\, I will describe how to overcome these challenges by introducing a l
 ine of research that led up to the decentralized ledger framework called O
 mniLedger. OmniLedger achieves scale-out throughput due to an integrated s
 ecure decentralized sharding mechanism\, keeps the transaction confirmatio
 n latency low\, and utilizes a mechanism for secure atomic cross-shard tra
 nsactions. I will\, furthermore\, introduce the core technologies that ena
 bled the development of OmniLedger which include ByzCoin\, a scalable Byza
 ntine fault tolerant consensus mechanism\, and RandHound\, a scalable prot
 ocol for generation of distributed publicly verifiable unbiasable randomne
 ss that is fundamentally needed for secure decentralized sharding. Finally
 \, I will also present evaluation results for those protocols showing\, fo
 r example\, that OmniLedger is capable of competing with the performance o
 f legacy payment networks like Visa in terms of throughput and transaction
  confirmation latency.\n\nShort bio\nPhilipp Jovanovic is a Post-Doctoral 
 Researcher at École Polytechnique Fédérale de Lausanne (EPFL)\, Switzer
 land. Before joining EPFL\, he received his PhD in Computer Science from t
 he University of Passau\, Germany\, in 2015.\n \nHis research interests b
 roadly include applied cryptography\, information security\, and decentral
 ized systems and his recent work involves improving scalability\, security
 \, and privacy aspects of blockchains and cryptocurrencies.\nHowever\, he 
 has also worked on a wide variety of other security-related topics\, inclu
 ding design and analysis of symmetric cryptographic primitives\, side-chan
 nel attacks and countermeasures\, hardware Trojans\, or security analysis 
 of protocols deployed in the real world such as TLS or the Open Smart Grid
  Protocol.\n \n \n 
LOCATION:BC 420 https://plan.epfl.ch/?room==BC%20420
STATUS:CONFIRMED
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