Piers O'Hanlon

P.OHanlon AT piersohanlon.com

Currently I work on communication security and privacy around 5G at the University of Oxford, in the Computer Science Department. Previously I used to work on security and privacy at the University of Oxford's Oxford Internet Institute (OII). Prior to Oxford I worked on Internet based networked systems, media transport, and security in the Computer Science Department of University College London.

I also provide consultancy services in the areas of Internet based media transport such as SIP, RTP, and other VoIP technologies, and in custom software development on multiple platforms (Linux, OSX, Windows). I've been involved with the Internet Engineering Task Force (IETF) for more than a decade and have authored a number of drafts and two RFCs. I also provide technology consulting for art and performance - based on robots, video tracking and related systems - these have been exhibited internationally including at the Tate Britain, Sadler's Wells, and elsewhere.

Email me for my CV.


  • P. O'Hanlon, Privacy bug (CVE-2015-3778) found in Apple's DNA implementation for iOS and MacOSX operating systems in their bootp subsystem. Update released for iOS 8.4.1 and OSX 10.10.5, 13 August 2015. For more details see my blog post.

Standards documents

Contributions at conferences and workshops

  • Carlos J. Bernardos, Juan Carlos Zúñiga, P. O'Hanlon Wi-Fi Internet connectivity and privacy: hiding your tracks on the wireless Internet, IEEE Conference on Standards for Communications and Networking (CSCN), Tokyo, Japan, 28-30 October 2015.
  • P. O'Hanlon, J. Wright, T. de Souza, I. Brown, KEMF: Key Management for Federated Sensor Networks, SecureComm, Beijing, China, 24-26 September 2014.
  • P. O'Hanlon, J. Wright, I. Brown, Privacy at the Link Layer, W3C/IAB workshop on Strengthening the Internet Against Pervasive Monitoring (STRINT), London, 28 Feb - 1 March 2014.
  • P. O'Hanlon, K. Carlberg, DFlow: Low delay congestion Control,[DOI], Capacity Sharing Workshop (CSWS13), co-located with the 21st International Conference on Network Protocols (ICNP'13), Göttingen, Germany, 7 October 2013.
  • P. O'Hanlon, K. Carlberg, Latency Signals, Internet Society (ISOC) Workshop on Reducing Internet Latency, London, 25-26 September, 2013.
  • T. de Souza, J. Wright, P. O'Hanlon, I. Brown, Set Difference Attacks in Wireless Sensor Networks, Proceedings of SecureComm, Padua, Italy, 3-5 September 2012.
  • P. O'Hanlon, The AVATS and SUMOVER projects: The media tools continue, Proceedings of the 8th Annual AccessGrid Retreat, Vancouver, Canada, May 2008.
  • P. O'Hanlon, P. Kirstein, S. Varakliotis, The UCL media tools past, present, and future, Proceedings of the Open Source and Sustainability 2006 conference, Said Business School, Oxford, April 2006.
  • P. O'Hanlon, Taking the media tools forward, Proceedings of the 6th Annual AccessGrid Retreat, Ann Arbour, MI, USA, May 2006.
  • S. Jiang, P. Kirstein, P. O'Hanlon, The Combination of IPv6 and Grid Systems, IPv6 and Broadband, Page 55 - 65, Published (ISBN 3-00-01 3801-3) by IST 6Link March 2005.
  • P. O'Hanlon, IPv6 and the Access Grid, Proceedings of the 4th Annual AccessGrid Retreat, Toronto, Canada, May 2004.
  • S. Jiang, P. O'Hanlon, P. Kirstein, Moving Grids into the IPv6 Era, Grid and Cooperative Computing 2003, 7-10 December 2003, Shanghai, China.
  • P. Kirstein, K. Carlsberg, K. Hasler, P. O'Hanlon, Media Transmission Over Coupled Wired/Wireless Networks Using Application Level Active IPv6 Networks, Proc. 6th Int. Symp Comm. Networking, Perth, 13-16 October 2002, pp 195-207.
  • P. Kirstein, P. O'Hanlon, K. Carlberg, P. Gevros, K. Hasler, The RadioActive Networking Architecture, DANCE 2002, 29-30 May 2002, Grand Hyatt, San Francisco, USA. ISBN:0-7695-1564-9 pp.394-408.
  • Hermann de Meer, Piers O'Hanlon, Segmented Adaptation of Traffic aggregates, IWQOS 2001, June 6-8, 2001 in Karlsruhe, Germany. LNCS 2092, pp.342-353. ISBN: 3-540-42217-X
  • D. G. Jameson, M. Hobsley, P. O'Hanlon, S. Buckton, Experiences in Interactive Teaching in Distance Medical Education using an ATM Video Network, Proceedings of Eurochinatel Conference, April 1997, Beijing, China.
  • M. Hobsley, R. Mccloy, D. G. Jameson, S. Buckton, P. O'Hanlon, Lessons learned during the INSURRECT project INteractive SURgical Teaching at REmote CeNtres,Journal of Telemedicine and Telecare, Volume 3 Number 1 Supplement June 1997, pp.38.
  • D.G. Jameson, M. Hobsley, P. O'Hanlon, S. Buckton, The Interactive Surgical Teaching from Remote Centres (INSURRECT) project, VII International Conference on Technology and Distance Education in San Jose, Costa Rica, 19-22 November, 1996
  • D.G. Jameson, P. O'Hanlon, S. Buckton, M. Hobsley, Broadband telemedicine: teaching on the information superhighway, Journal of Telemedicine and Telecare 1995; Volume 1 Number 2, pp.111-6.
  • E. Duval, H. Olivié, P. O'Hanlon, and D. Jameson, HOME: an environment for hypermedia objects, The Journal of Universal Computer Science 1 (1995), no. 5, 265-287
  • D.G. Jameson, M. Hobsley, P. O'Hanlon, S. Buckton, Surgical Teaching project in Surgery, ED-MEDIA 94, World Conference on Educational Multimedia and Hypermedia, June 25-29, 1994, Vancouver, Canada
  • E. Duval, H. Olivié, P. O'Hanlon, and D. Jameson, Networked hypermedia for education, Proceedings of Telematics for Education and Training (P. Held and W. Kugemann, eds.), Proceedings of the Telematics for Education and Training Conference, 1994, pp. 408-415
  • E. Duval, H. Olivié, P. O'Hanlon, D. Jameson, N. Ismail, S. Wilbur, and R. Beckwith, A multimedia information resource for education, Proceedings of the Eleventh International Conference on Technology and Education - London, England, 27-30 March 1994 (T. M. Thomas, ed.), pp. 1008-1010
  • E. Duval, H. Olivié, P. O'Hanlon, D. Jameson, N. Ismail, S. Wilbur, and R. Beckwith, Managing networked multimedia data, ACM SIGGRAPH Computer Graphics 28 (1994), no. 1, 15-19
  • E. Duval, P. O'Hanlon, and N. Ismail, Distributed Hypermedia for Education, Workshop at MediaActive 94, Harnessing Multimedia for Higher Education, Liverpool, United Kingdom, 4-6 May, 1994
  • E. Duval, I. Decloedt, C. Liekens, H. Olivié, P. O'Hanlon, D. Jameson, N. Ismail, S. Wilbur, J. Van Heddegem, and R. Beckwith, An Information and Telecommunication Infrastructure for Flexible and Distance Learning, Proceedings of Applica93, Telepresence, First International Conference on Technologies and Theories for Human Cooperation, Collaboration, Coordination, Lille, France, 22-24 March 1993, pp. 218-230
  • D. Jameson, P. O'Hanlon, R. Beckwith, E. Duval, and H. Olivié, Functionality of a Multi-media Image Network for Medical Education, Proceedings of Applica93, Telepresence, First International Conference on Technologies and Theories for Human Cooperation, Collaboration, Coordination, Lille, France, 22-24 March 1993, pp. 58-66
  • D. Jameson, P. O'Hanlon, R. Beckwith, E. Duval, and H. Olivié, Distance learning by satellite - using an information resource to provide a flexible learning system, Proceedings of Teleteaching: Proceedings of the IFIP TC3 Third Teleteaching Conference, Teleteaching 93 (Trondheim, Norway, 20-25 August , 1993) (G. Davies and B. Samways, eds.), pp. 459-467
  • R. Beckwith, D. Jameson, P. O'Hanlon, and E. Duval, Interactive Satellite Teaching and Conferencing Using an Image Server, ESA Olympus Conference, Seville, Spain 1993.

Invited Talks

  • P. O'Hanlon, S.Jiang, P.Kirstein, Grid and IPv6, INET2004, Barcelona.
  • P. O'Hanlon, Active Networks and Conferencing, First Internet Bay Conference on Science and the Cyber Community, Lulea, Sweden 2001
  • P. O'Hanlon, Secure Conferencing, Netproject.com Security seminars, London 2001

Trip Reports

  • Trip report on the 51th IETF, 5-10 August 2001, London, UK.
  • Trip report on the 47th IETF, 26-31 March 2000, Adelaide, Australia.
  • Trip report on the 46th IETF, 7-12 November 1999, Washington D.C.

See my Timesinker Blog for awkward tech stuff that I've run into. If you're interested in art then take a look at my brother's Art site.

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