Selected Scholarly and Professional Activities (past few years)

Co-founder and member of Board of Directors of Selected Areas in Cryptography, the annual international workshop. Co-chair (1997, 1999, 2007); Member of the Program Committee (1994, 1995, 1996, 1998, 2003, 2004, 2006, 2007); Chair of Board of Directors (2007-2010)

Invited presentation:  “Privacy in an Age of Exposure”, Workshop on Computer Privacy in E-Commerce, University of Montreal, May 1, 2010

Invited presentation:  “Credential Systems:  Promise, Risks, and Possible Mitigations”, Identity, Privacy, and Security Institute (IPSI), University of Toronto, Canada, November 16, 2009

Invited keynote presentation:  “Credential Systems”, Information Systems Security (ISS) Colloquium, Concordia University, Montreal, Canada, June 5, 2009

Invited presentation:  Speaker on privacy issues in a half-day tutorial session entitled “On the Record” (to an audience of approximately 60 judges of all levels from across Canada), National Judicial Institute, Ottawa, Ontario, Canada, April 24, 2009

Invited presentation:  Speaker on privacy technologies in a half-day tutorial session on “Reasonable Expectation of Privacy” (to an audience of approximately 200 provincial court judges), National Judicial Institute, Canadian Association of Provincial Court Judges, Ottawa, Ontario, Canada, May 22, 2008

Invited presentation:  “Digital Credentials:  Extensions for Real-World Use”, Ontario Research Network for Electronic Commerce (ORNEC) Workshop on Digital Credentials, Ottawa, Canada, February 5, 2008

Invited Presentation:  "Digital Credentials:  Introduction and New Applications", 2nd Workshop on the Practice and Theory of IT Security, Montreal, QC, January 23, 2008.

General chair of the 7th Annual Workshop on Privacy Enhancing Technologies (PET 2007), Ottawa, Canada, June 20-22, 2007

Invited presentation:  "Delegation and Proxy Services in Digital Credential Environments", 7th Annual CACR Privacy and Security Workshop, Toronto, ON, Canada, November 2, 2006

Invited to give the keynote presentation at the 2nd European PKI Workshop, Canterbury, U.K., June 30, 2005.  The presentation was entitled  PKI:  Views from the Dispassionate "I".

Invited to give the keynote presentation at the Workshop on New Challenges for Access Control, Ottawa, Canada, April 27, 2005.  The presentation was entitled  Access Control:  Current Approaches and New Challenges.

Member of the Program Committee for 13th ACM Conference on Computer and Communications Security (CCS), Alexandria, VA, October 30 - November 3, 2006

Member of the Program Committee for Applied Cryptography and Network Security (ACNS), Singapore, June 6-9, 2006

Member of the Program Committee for Workshop on Digital Identity Management (DIM) (held in conjunction with ACM Conference on Computer and Communications Security), Fairfax, VA, November 11, 2005

Member of the Program Committee for 3rd Annual Conference on Privacy, Security & Trust, New Brunswick, Canada, October 12-14, 2005

Member of the Program Committee for 4th International Workshop for Applied PKI (IWAP), Singapore, September 21-23, 2005

Member of the Program Committee for 2nd European PKI Workshop (EuroPKI), Canterbury, U.K., June 31 - July 1, 2005

Member of the Program Committee for Workshop on New Challenges for Access Control (NCAC), Ottawa, Canada, April 27, 2005

Member of the Program Committee for Workshop on Practice and Theory of Access Control Technologies (WPTACT), Montreal, Quebec, Canada, January 19, 2005

Member of the Program Committee for 1st European PKI Workshop (EuroPKI), Samos Island, Greece, June 25-26, 2004

Member of the Program Committee for 7th Information Security Conference (ISC), Palo Alto, CA, USA, September 27-29, 2004

Member of the Program Committee for 3rd International Workshop for Applied PKI (IWAP), Fukuoka, Japan, October 3-5, 2004

Program Co-Chair for Workshop on Privacy and Security Aspects of Data Mining, Brighton, UK, November 1, 2004

Member of the Program Committee for International Workshop on Practice and Theory in Public Key Cryptography (PKC), Les Diablerets, Switzerland, January 23-26, 2005

Co-chair: Organization for the Advancement of Structured Information Standards (OASIS) eXtensible Access Control Markup Language (XACML) Technical Committee (2001-2003)

Member of the Board of Advisors and Technical Contributor to Encyclopedia of Cryptology and Information Security (Springer, 2005). Topics: Key Management (public and private), Identification, Authorization, Privacy, Security Standards

Invited presentation: "Security Theme" (invited to speak as co-leader for the security theme), Privacy, Security & Trust Workshop, Montreal, Canada, October 27, 2003

Invited presentation: “OASIS SAML Attribute Assertions: Description and Discussion”, at the 2nd Annual PKI Research Workshop, Gaithursburg, MD, USA, April 28, 2003

Invited presentation: “SAML: What’s Next?”, at the 2nd Annual PKI Research Workshop, Gaithursburg, MD, USA, April 29, 2003

Member of the Program Committee for ACM Workshop on XML Security, Fairfax, VA, USA, October 31, 2003

Member of the Program Committee for Joint OASIS/W3C Forum on Security Standards for Web Services, Boston, MA, USA, August 26, 2002

Invited presentation: Secure Software Implementations for Wired and Wireless Applications, at the 9th University of Waterloo CACR (Center for Applied Cryptographic Research) Information Security Workshop, Ottawa, Canada, November 29, 2001

Invited presentation: Which PKI is the Right One?, at the 7th ACM Conference on Computer and Communications Security, Athens, Greece, November 3, 2000

Invited presentation: CAST Your Bread Upon the Waters, at the Communications and Information Technology Ontario (CITO) Knowledge Network Conference – Beyond the Edge: Road Mapping Innovation, Ottawa, Canada, October 2-3, 2000

Invited presentation: Public-Key Infrastructure: Present Status and Future Directions, at the Communications and Information Technology Ontario (CITO) Tech Talk Workshop, Ottawa, Canada, February 3, 2000

Principal organizer and moderator for "Layers of Security for the Electronic Age", Communications and Information Technology Ontario (CITO) Tech Talk Workshop, Ottawa, Canada, February 3, 2000

Invited presentation: "PMI: Understanding the Unified Authorization Model", at the NATO technical subcommittee investigating Privilege Management Infrastructure, Ottawa, Canada, September 8, 1999

Member of the Program Committee for 7th Usenix Security Symposium, San Antonio, TX, USA, January 26-29, 1998

Member of the Program Committee for ACM Conference on Computer and Communications Security, Zurich, Switzerland, April 2-4, 1997