October 1994 – July 1995
DAAD fellowship at the Darmstadt University of Technology
January 1995 – June 1997
PhD fellowship granted by the land Hessen, Germany
June 2006 
OEAD fellowship within the CEEPUS network RO-147, at the University of Applied Life Sciences, Vienna, Austria.
July 2014 – December 2014
TU Dresden fellow
Teaching abroad
1999 – 2001 
Assistant at Darmstadt University of Technology
Erasmus teaching activities 
May 2012
Erasmus teaching stay at the Dresden University of Technology
September 2012 Erasmus teaching assignment at the Dresden University of Technology
February 2013 Erasmus teaching assignment at the Dresden University of Technology
September 2013 Erasmus teaching assignment at the Dresden University of Technology
February 2014 Erasmus teaching assignment at the Dresden University of Technology
February 2015 Erasmus teaching assignment at the Dresden University of Technology
September 2015 Erasmus teaching assignment at the University of Applied Life Sciences Mittweida
September 2016 Erasmus teaching assignment at the Dresden University of Technology
September 2016 Invited Professor at the University of Applied Life Sciences Mittweida
February 2017 Erasmus teaching assignment at the Dresden University of Technology
February 2018 Erasmus teaching assignment at the Dresden University of Technology
Research interest
Cryptography