0090 312 210 5016
26 February 2018: Although I cryptanalyzed ciphers designed by others all this time, for the first time in my life, as a part of my research at RUB with Gregor Leander, I designed a block cipher. Silent Encryption Decryption Algorithm is the first cipher that is designed specifically for GPU architecture. Click here for the SILENT cipher page.
18 January 2018: I returned to METU and moved back to Turkey. Please do not send anything to my German address. I am currently teaching Cyber Security and Cryptography courses as an adjunct faculty at Department of Cyber Security. I will teach CSEC507 Applied Cryptology and CSEC502 Network Security at Spring 2018 Semester.
03 April 2017: I am currently on leave until 2018. I am doing post-doctoral research at RUHR Universitat Bochum, Germany with Gregor Leander's Symmetric Cryptography Group.
I hold a permanent researcher position at Department of Mathematics, Middle East Technical University at Ankara, Turkey. I am also an affiliated faculty at Department of Cyber Security, Institute of Informatics and Department of Cryptography, Institute of Applied Mathematics. I have left Ecole Polytechnique Federale de Lausanne (EPFL) and I am no longer using my EPFL email address.
During my MS and PhD studies, I focused mainly on block cipher cryptanalysis and I discovered the Improbable Differential Cryptanalysis. I provided the best known attacks on the block ciphers HIGHT (standardized at South Korea), CLEFIA (developed by SONY Corporation), and SERPENT (AES candidate). I visited EPFL in 2010 for 1 year and I did reasearch on provable security under the supervision of Prof. Serge Vaudenay and on GHS attack and genus 2 curves under the supervision of Prof. Arjen Lenstra.
Program Committee Member