General Chair

- CRYPTO 2012

Program Committee

- CT-RSA 2014

- Eurocrypt 2010

- FSE 2009

- AfricaCrypt 2009

- CRYPTO 2009

- CT-RSA 2008

- CRYPTO 2008

- CANS 2008

- CT-RSA 2007

- ISPEC 2007

- CRYPTO 2007

- CANS 2007

- ICICS 2007

- ISPEC 2006

- PKC 2006

- CRYPTO 2006

- ICICS 2005

- Asiacrypt 2004 

- CRYPTO 2002

- ICICS 2002

- ICICS 2001

- SEC 2000

- CCICS 1999

- CrypTec 1999

- ICICS 1997