Tomáš holds Ph.D. in cryptology, his doctoral dissertation was awarded the Best Doctoral Work Award of the rector of ČVUT in 2004. He studied on FEL ČVUT and MFF UK in Prague.
He deals with mathematical and physical methods of computer security. His work also helped to improve a number of world-wide standards – TLS protocol, EMV scheme, Bluetooth, and GNSS. He is the chief cryptologist with the Cryptology and biometrics competence centre of Raiffeisen Bank International.