I am a Ph.D. student at the School of Physical and Mathematical Sciences, NTU, Singapore. I co-designed the Romulus and Remus families of lightweight authenticated encryption modes with Tetsu Iwata, Kazuhiko Minematsu and Thomas Peyrin, which are the basis of three candidates for the NIST Lightweight Cryptography Competition. Previously, I got my BSc. in Electronics Engineering from Alexandria University, Egypt. My main research focus is the practical aspects of Symmetric Key Cryptography, which includes: Physical Security, Hardware Implementations, Practical Cryptanalysis and Primitive Design. Previous research projects also included the acceleration of Fully Homomorphic Encryption and Design and Verification of Digital Circuits.