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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.

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