Assistant Professor

Tomer Ashur


Tomer Ashur is an assistant professor in the Coding Theory and Cryptology group at Eindhoven University of Technology (TU/e). He is interested in all forms of symmetric-key cryptanalysis: differential, linear, structural, algebraic, combined, etc. In addition to his contributions to the theory of cryptanalysis, he took part in improving the cryptanalysis for several ciphers, including MMB, p-OMD, Piccolo, GOST2, Simon, Speck, and Chaskey. Ashur is particularly interested in applications of cryptography in the real world. He took part in the first Tesla hack, Galileo OSNMA, Tor Proposal 295, and standardization. A recent interest of his is algebraic ciphers (also known as arithmetization-oriented ciphers). These are cryptographic algorithms operating on finite-field elements using the field's native operations. The goal of such algorithms is to minimize the number of non-linear operations used to compute the cipher, and they find use in more advanced cryptographic protocols such as zero-knowledge, multiparty computation, and homomorphic encryption. As part of this effort, Ashur co-designed Vision and Rescue permutations as part of the Marvellous cryptoverse.

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Tomer Ashur received his bachelor's degree in Computer Science and Management from the Open University of Israel in 2007, followed by a summa cum laude master's degree in Computer Science from University of Haifa in 2013. He moved to KU Leuven for his PhD in Electrical Engineering (2013-2017), followed by a 1.5-year postdoctoral position at the COSIC group at the same university. In 2019, Ashur started as assistant professor at Eindhoven University of Technology (TU/e). Prior to his academic work, he was a communications officer in the Israel Defense Forces, and held several positions in IT management in Israel

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