I was involved in the following conferences:

PC member:  ESAS 2007

PC member:  WEWORC 2007

PC member:  SECRYPT 2007

PC member:  CHES 2007

PC member:  Inscrypt 2007

PC member:  WISA 2007

PC member:  SECRYPT 2008

PC member:  CHES 2008

PC member:  ReConFig'08

PC member:  IOLTS 2009

Chair: RFIDSec 2009

PC member:  SECRYPT 2009

PC member:  CHES 2009

PC member:  ACM STC 2009

PC member:  ACM WiSec'10

PC member:  DATE 2010, session on secure embedded implementations

PC member:  FutureTech 2010, Track 8. Security and Trust Computing

PC member:  AFRICACRYPT 2010

PC member:  Mobisec 2010

PC member:  Workshop on Security Hardware as a part of TRUST 2010

PC member:  RFIDSec 2010

PC member:  CHES 2010

PC member: WESS'2010, 5th Workshop on Embedded Systems Security, October 24, 2010, Scottsdale, Arizona, USA

PC member: ATIS-10, 1st workshop on  Applications and Techniques in Information Security, November 10, Melbourne, Australia

Chair with Svetla Nikova: WISSec 2010, November 29-30, 2010, Nijmegen, The Netherlands

PC member: LightSec 2011, March 14-15, 2011, Istanbul, Turkey

PC member: MOBISEC 2011, May 17-18, 2011, Aalborg, Denmark

PC member: DSD 2011, Special session on Architectures and Hardware for Security Applications (AHSA), Aug. 31-Sept. 2, Oulu, Finland

PC member: RFIDSec 2011, June 26-28, 2011, Amherst, Massachusetts, USA

PC member: SAC 2011, August 11-12, 2011, Ontario, Canada

PC member: LWcrypt2011, 1st intern. workshop on lightweight cryptography, colocated with ARES conference, Aug. 22-26, Vienna, Austria

PC member: EuroPKI'11, Sept. 15-16, Leuven, Belgium 

PC member: CHES 2011, Sept. 28-October 1, 2011, Nara, Japan

PC member: ATIS 2011, November 9, 2011, Melbourne, Australia

PC member: ECRYPT workshop on lightweight cryptography, November 28-29, Louvain-la-Neuve, Belgium

PC member:  ACSA-11, the 2011 FTRA intern. symposium on advances in Cryptography, Security and Applications for Future Computing, Dec. 12-15, Jeju, Korea

PC member: Indocrypt 2011, Dec. 11-14, 2011, Chennai, India

PC member: PILATES 2012,  Workshop on Physically-augmented Security for Wireless Networks, March 21, Kaiserslautern, Germany

PC member: SFCS 2012, Security and Forensics in Communication Systems, June 10-15, 2012, Otawa, Canada.

PC member:WISTP'12 , June 19-22, Egham, UK.

PC member:MOBISEC 2012 , June 25-27, Frankfurt am Main, Germany.

General chair: RFIDSec12 in Nijmegen, July 1-3, 2012

PC member:SECUREWARE 2012, August 19-24, Rome, Italy.

PC member:AHSA , special session of DSD 2012, September 5-8, Izmir, Turkey.

General co-chair with Ingrid Verbauwhede: CHES 2012 in Leuven, September 9-12, 2012.

PC member: EuroPKI 2012 , September 13-14, 2012, Pisa, Italy.

PC member: Latincrypt 2012 , Oct 7-10, 2012, Santiago, Chile.

PC member: IEEE ISSNIP 2013, April 2-5, 2013 Melbourne, Australia.

PC member: LightSec 2013, May 6-7, 2013, Gebze, Turkey.

PC member and invited speaker: WISTP 2013 , May 28-30, 2013, Heraklion, Greece.

General chair: TRUDEVICE 2013, First Workshop on Trustworthy Manufacturing and Utilization of Secure Devices, May 30-31, Avignon, France.

PC member: HOST 2013, June 2-3, 2013, Austin, TX, USA.

Speaker at COSIC course, June 3-6, 2013, Leuven, Belgium.

Speaker at Ice Break 2013, summer school on symmetric cryptography, June 6-12, 2013, Iceland.

Organizing committee member for CrossFyre 2013, June 20-21, 2013, Leuven, Belgium.

CryptArchi 2013, June 23-26, 2013, Frejus, France

PC member: PRISMS 2013 (former MOBISEC), June 24-27, Atlantic City, New Jersey, USA.

Speaker at Summer school on Design and Security of Cryptographic Functions, Algorithms and Devices, July 1-5, 2013, Albena, Bulgaria. 

Invited speaker and PC member at RFIDSec 13 , July 9-11, Graz, Austria.

PC member: SAC 2013, August 14-16, British Columbia, Canada.

PC member: CHES 2013, August 20-23, 2013, Santa Barbara, CA.

PC member: SECURWARE 2013, August 25-31, 2013, Barcelona, Spain.

PC member: EuroPKI 2013, September 12-13, 2013, RHUL, Egham, UK.

PC member: AHSA, special session of DSD 2013, September 4-6, 2013, Santander, Spain.

Scientific committee member: ECC 2013, September 16-18, 2013, Leuven, Belgium.

PC member: href="http://www.cpdpconferences.org">CPDP 2014, January 22-24, 2014, Brussels, Belgium,

HOST 2014, May 6-7, 2014, Arlington, VA, USA, PC member

Summer School on Design and security of cryptographic algorithms and devices for real-world applications, June 1-6, 2014, Šibenik, Croatia, speaker and organizer

WISTP 2014, June 30-July 02, 2014, Heraklion, Greece, PC member

Training School on Trustworthy Manufacturing and Utilization of Secure Devices, July 14-18, 2014, Lisbon, Portugal, speaker and PC member

RFIDSec 2014, July 21-23, 2014, Oxford, UK, PC member

LightSec 2014, Sept. 1-2, 2014, Istanbul, Turkey, PC member

LATINCRYPT 2014, September 17-19, 2014, Florianópolis, Brazil, PC member

CHES 2014, September 23-26, 2014, Busan, Korea, PC co-chair with Matt Robshaw

WAIFI 2014, September 26-28, 2014, Gebze, Turkey, PC member

BalcanCryptSec 2014, Oct. 16-17, 2014, Istanbul, Turkey, PC member

TrustED 2014, November 3, 2014, Scottsdale, Arizona, USA, PC member

ATIS 2014, Melbourne, Australia, keynote speaker.

ICISC 2014, December 3-5, 2014, Seoul, Korea, PC member

DATE 2015, March 9-13, 2015, Grenoble, France, PC member

Eurocrypt 2015, April 26-30, 2015, Sofia, Bulgaria, PC member

Summer school on real world crypto and privacy 2015, June 1-6, 2015, Sibenik, Croatia, speaker and organizer

RFIDSec 2015, June 22-23, 2015, New York City, USA, PC member

WiSec 2015, June 22-26, 2015, New York City, USA, PC member

LATINCRYPT 2015, Aug. 23-26, 2015, Guadalajara, Mexico, PC member

WISTP 2015, Aug. 24-25, 2015, Crete, PC member

CHES 2015, Sept. 13-16, 2015, Saint-Malo, France, PC member

Fourth TRUDEVICE Workshop on Secure Hardware and Security Evaluation, Sept. 17, 2015, Saint-Malo, France, chair

ECC 2015, Sep. 28-30, 2015, Bordeaux, France, scientific committee member

SPACE 2015, Oct. 3-7, 2015, Jaipur, India, PC member

TRUDEVICE workshop collocated with CHES 2015 in Saint-Malo, France, co-chair

CrossFyre 2015, November 2-3, in Nijmegen, organizer.

ICT Open 2016, March 22, 2016, Amersfoort, The Netherlands, chair of Cyber Security track.

IEEE International Symposium on Hardware Oriented Security and Trust (HOST), May 3-5, 2016, McLean, VA, USA, PC member

Summer school on real world crypto and privacy 2016, June 5-10, 2016, Sibenik, Croatia, speaker and organizer

CHES 2016, Aug. 16-19, 2016, Santa Barbara, CA, PC member

Dagstuhl Seminar on Foundations of Secure Scaling, Aug. 21-26, 2016, Schloss Dagstuhl, Germany, co-organizer

CARDIS 2016, Nov. 7-9, 2016, Cannes, France, PC member

RFIDSec 2016, Nov. 30-Dec. 2, 2016, Singapore, PC member

SPACE 2016, Dec. 16-18, 2016, Hyderabad, India, Tutorial/Invited speaker and PC member