The tweakable Even-Mansour construction generalizes the conventional Even-Mansour scheme through replacing round keys by strings derived from a master key and a tweak. Besides providing plenty of inherent variability, such a design builds a tweakable block cipher from some lower level primitive. In the present paper, we evaluate the multi-key security of TEM-1, one of the most commonly used one...

Jamal K. Mansour & Heather D. Flowe For more than a century psychologists have utilized eye tracking as a window into how we think and how we feel, and to test theories of the mind and its mental processes. A range of forensic topics has been investigated with eye tracking, such as the effect of weapon exposure (e.g., Hope & Wright, 2008), visual attention in anti-social personality disorder (e...

the Dept. of Microelectronics and Computer Engineering, UTM, Malaysia and Signal Processing Research Center, QUT, Australia A Simple ICA Algorithm Based On Geometrical Approach. A. MANSOUR 1, C. G. PUNTONET 2 and N. OHNISHI 1;3 1BMC RIKEN, Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-0003 (JAPAN) 2Dept. of Architecture and Computer Technology.University of Granada. Granada 18071 (SPAIN) 3De...

Abstract Symmetric cryptographic primitives are often exposed to invariances: deterministic relations between plaintexts and ciphertexts that propagate through the primitive. Recent invariant subspace attacks have shown these can be a serious issue. One way mitigate is at primitive level, namely by proper use of round constants (Beierle et al., CRYPTO 2017). In this work, we investigate how thw...

Chaskey is a Message Authentication Code (MAC) for 32bit microcontrollers proposed by Mouha et. al at SAC 2014. Its underlying blockcipher uses an Even-Mansour construction with a permutation based on the ARX methodology. In this paper, we present key-recovery attacks against Chaskey in the single and multi-user setting. These attacks are based on recent work by Fouque, Joux and Mavromati prese...

The effect of the emerging omicron variant on willingness to take or continue with COVID-19 vaccination in Middle EastTareq L. Mukattash, Anan S. Jarab, Rana K. Abu-Farha, Rania Itani, Samar Karout, Razan Z. Mansour, Shorouq Abuhishmah

Cosignatories Jean-Jacques Amy, Rob Beerthuizen, Martin Birkhäuser, Teresa Bombas, Mitchell Creinin, Philip D Darney, Lisa Ferreira Vicente, Kristina Gemzell-Danielsson, Bruno Imthurn, Jeffrey T Jensen, Andrew M Kaunitz, Ali Kubba, Medard M Lech, Diana Mansour, Gabriele Merki, Thomas Rabe, Katarina Sedlecki, David Serfaty, Jacques Seydoux, Lee P Shulman, Regine Sitruk-Ware, Sven O Skouby, Anne ...