Computer Laboratory

Dr David Llewellyn-Jones

About

David Llewellyn-Jones

I am a Research Associate on the Pico Project in the Computer Laboratory at the University of Cambridge. The Pico Project aims to free the world from the tyranny of passwords by providing a better way for people to authenticate themselves. In the process of eradicating passwords, it'll also remove the need for physical keys, credit cards and all the other gubbins the average person fills up their pockets with.

Take a look at the video on the Pico site to get a quick overview of the project, which is headed up by Dr Frank Stajano.

My broader research interests include Computer Security and I've worked on a number of projects related to Secure Service Composition (whereby the interactions between devices or services affect security in often unexpected ways).

Before joining the project in Cambridge I was a Reader in Computer Security at Liverpool John Moores University. I completed my PhD in mathematical model theory at the University of Birmingham researching under Dr Richard Kaye. I also spent a stint at Codemasters in Leamington Spa as a programmer on the Race Driver (now Grid) franchise of computer games.

Supervision

Please see my supervision page for details about tutorials.

Contact

Post Dr David Llewellyn-Jones
University of Cambridge
Computer Laboratory
15 JJ Thomson Avenue
Cambridge CB3 0FD
United Kingdom
Phone+44 1223 767025
Email[Javascript required]
Personal homepage http://www.flypig.co.uk
Twitter @flypigahoy
SourceForge https://sourceforge.net/u/flypig
GitHub https://github.com/llewelld
LinkedIn http://uk.linkedin.com/in/flypig
Public key 696F 8647 2837 F81D 606F DA0F 07BC F007 F2D4 019F
ORCID ID orcid.org/0000-0002-3836-7903

Publications

The following are some recent publications. You can find a more complete list on my personal site.

  • "Cracking PwdHash: A Bruteforce Attack on Client-side Password Hashing"

    David Llewellyn-Jones, Graham Rymer, "Cracking PwdHash: A Bruteforce Attack on Client-side Password Hashing", 11th International Conference on Passwords (Passwords 2016), Bochum, Germany, 7 December 2016. More info....
    Download: pdf.

  • "Red button and yellow button: usable security for lost security tokens"

    Ian Goldberg, Graeme Jenkinson, David Llewellyn-Jones, Frank Stajano, "Red button and yellow button: usable security for lost security tokens", Proceedings of the Security Protocols Workshop 2016, Brno, Czech Republic, 8 April 2016. More info....

  • "Explicit delegation using configurable cookies"

    David Llewellyn-Jones, Graeme Jenkinson, Frank Stajano, "Explicit delegation using configurable cookies", Proceedings of the Security Protocols Workshop 2016, Brno, Czech Republic, 8 April 2016. More info....

  • "Optimizing runtime performance of hybrid dynamically and statically typed languages for the .Net platform"

    Jose Quiroga, Francisco Ortin, David Llewellyn-Jones, Miguel Garcia, "Optimizing runtime performance of hybrid dynamically and statically typed languages for the .Net platform", Journal of Systems and Software, Volume 113, Pages 114-129, March 2016. More info....

  • "Secure Proximity-Based Identity Pairing using an Untrusted Signalling Service"

    Tim Panton, David Llewellyn-Jones, Nathan Shone, Mahmoud Hashem Eiza, "Secure Proximity-Based Identity Pairing using an Untrusted Signalling Service", IEEE Consumer Communications and Networking Conference (CCNC 2016), Las Vegas, NV, USA, 9-12 January 2016. More info....
    Download: pdf, LaTeX.

  • "On the evaluation of reputation and trust-based schemes in mobile ad hoc networks"

    Sohail Abbas, Madjid Merabti, David Llewellyn-Jones, "On the evaluation of reputation and trust-based schemes in mobile ad hoc networks", Security and Communication Networks, Volume 8, Issue 18, pages 4041-4052, December 2015. More info....
    Download: pdf.

  • "A New Lightweight Homomorphic Encryption Scheme for Mobile Cloud Computing"

    Mohd Rizuan Baharon, Qi Shi, David Llewellyn-Jones, "A New Lightweight Homomorphic Encryption Scheme for Mobile Cloud Computing", IEEE International Conference on Computer and Information Technology (CIT 2015 ), Liverpool, UK, 26-28 October 2015 . More info....
    Download: pdf.

  • "Secure Video Transcoding in Cloud Computing"

    Mohd Rizuan Baharon, Qi Shi, Davd Llewellyn-Jones, Madjid Merabti, "Secure Video Transcoding in Cloud Computing", 2nd International Conference on Cloud Security Management (ICCSM 2014), Reading, UK, 23 October 2014. More info....

  • "The big data obstacle of lifelogging"

    Chelsea Dobbins, Madjid Merabti, Paul Fergus, David Llewellyn-Jones, "The big data obstacle of lifelogging", 28th International Conference on Advanced Information Networking and Applications Workshops (IEEE WAINA 2014), Victoria, BC, Canada, 13 May 2014. More info....

  • "Creating human digital memories with the aid of pervasive mobile devices"

    Chelsea Dobbins, Madjid Merabti, Paul Fergus, David Llewellyn-Jones, "Creating human digital memories with the aid of pervasive mobile devices", Pervasive and Mobile Computing, Volume 12, pp. 160-178, 1 June 2014. More info....