About

I am affiliated to the Institute for Quantum Computing (IQC) as a post doctoral researcher at the Department of Combinatorics & Optimization at the University of Waterloo in Waterloo, Ontario, Canada. I interned at Microsoft Research, Redmond, US during summer 2019. Before, I was a post doctoral researcher in the Cryptography and computer algebra group at TU Darmstadt where I received my Ph.D. in September 2018 under the supervision of Johannes Buchmann from TU Darmstadt.

My research interest is mostly in the area of cryptography that is secure even in the presence of quantum computers, so-called post-quantum cryptography.

The signature scheme qTESLA

qTESLA is a family of provably-secure post-quantum signature schemes based on the hardness of the decisional Ring Learning With Errors (R-LWE) problem. The scheme is an efficient variant of the Bai-Galbraith signature scheme —which in turn is based on the “Fiat-Shamir with Aborts” framework by Lyubashevsky— adapted to the setting of ideal lattices.

qTESLA was submitted to NIST’s post-quantum standardization project in November 2017 and is accepted for the second round of the competition. More information about the signature scheme qTESLA can be found here.