George Danezis

George Danezis

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Co-founder & Chief Scientist
London, England, United Kingdom

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Jobs verified_user 0% verified
  • Mysten Labs
    Co-founder & Chief Scientist
    Mysten Labs
    Nov 2021 - Current (4 years 8 months)
  • Facebook
    Research Scientist
    Facebook
    Feb 2019 - Jul 2021 (2 years 6 months)
    Part of the Novi team designing and building the Diem (previously Libra) payment network.
  • Chainspace
    Co-Founder and Head of Research
    Chainspace
    Aug 2018 - Feb 2019 (7 months)
    Building a scalable decentralised smart contacts platform.
  • Vega Protocol
    Advisor
    Vega Protocol
    Jun 2018 - Sep 2019 (1 year 4 months)
    Advising and Researching on all matters related to cyber security and distributed systems.
  • Privitar
    Advisor
    Privitar
    Mar 2017 - Current (9 years 4 months)
  • The Alan Turing Institute
    Faculty Fellow
    The Alan Turing Institute
    Oct 2016 - Current (9 years 9 months)
  • UCL
    Professor of security and privacy engineering
    UCL
    Jul 2016 - Current (10 years)
    Research, teaching and managing a research group on security and privacy engineering.
  • University College London
    Reader in Security and Privacy Engineering
    University College London
    Oct 2013 - Jul 2016 (2 years 10 months)
    Full time research and teaching on Security and Privacy Engineering and technology.
  • Microsoft Research Cambridge
    Post-doctoral researcher
    Microsoft Research Cambridge
    Sep 2007 - Sep 2009 (2 years 1 month)
    I am conducting research in security and privacy
  • Microsoft
    Researcher
    Microsoft
    Jan 2007 - Sep 2013 (6 years 9 months)
    Research in cryptography, traffic analysis, peer-to-peer security, smart grid security, and inference.
  • KU Leuven
    Visiting Fellow
    KU Leuven
    Sep 2005 - Aug 2007 (2 years)
    See the website for details: http://www.esat.kuleuven.ac.be/cosic/
  • Cambridge University
    Research Associate
    Cambridge University
    Jan 2004 - Dec 2005 (2 years)
  • University of Cambridge
    Research Assistant / Associate
    University of Cambridge
    Sep 2003 - Sep 2005 (2 years 1 month)
    Research in peer-to-peer security and privacy in close collaboration with MIT (US).
Education verified_user 0% verified
  • University of Cambridge
    PhD, Computer Security, Cryptography
    University of Cambridge
    Jan 2000 - Dec 2004 (5 years)
    Doctoral thesis entitled "Better Anonymous Communications" funded by the Newton Trust and the Cambridge-MIT Institute.
  • University of Cambridge
    BA, Computer Science
    University of Cambridge
    Jan 1997 - Dec 2000 (4 years)
    Studies Computer Science as well as one year of the Natural Science Tripos (with Maths, Physics and 50% options)
  • E
    European Baccalaureate, High School
    European School of Brussels
    Jan 1988 - Dec 1997 (10 years)
Awards verified_user 0% verified
  • British Computer Society
    Fellow of the British Computer Society
    British Computer Society
    Jan 2015
Publications verified_user 0% verified
  • F
    Blockmania: from Block DAGs to Consensus
    Forthcoming
    Sep 2018
    Blockmania is a byzantine consensus protocol. Nodes emit blocks forming a directed acyclic graph (block DAG). The block DAG is subsequently interpreted by each node separately to ensure consensus with safety, liveness and finality. The resulting system has communication complexity O(N2) even in the worse case, and very low constant factors --- as compared to O(N4) for PBFT; it is leaderless; and network operations do not depend on the composition of the quorum or node stake. This makes Blockmania ideal for dynamic membership and flexible and non-interrupted proof-of-stake protocols. X-Blockmania, has O(N) communication cost but also higher latency O(logN).
  • N
    Chainspace: A Sharded Smart Contracts Platform
    Network and Distributed System Security Symposium NDSS
    Feb 2018
    Chainspace is a decentralized infrastructure, known as a distributed ledger, that supports user defined smart contracts and executes user-supplied transactions on their objects. The correct execution of smart contract transactions is verifiable by all. The system is scalable, by sharding state and the execution of transactions, and using S-BAC, a distributed commit protocol, to guarantee consistency. Chainspace is secure against subsets of nodes trying to compromise its integrity or availability properties through Byzantine Fault Tolerance (BFT), and extremely high-auditability, non-repudiation and `blockchain' techniques. Even when BFT fails, auditing mechanisms are in place to trace malicious participants. We present the design, rationale
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