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Tomáš Rosa

Czech Republic

Mr. Tomáš Rosa Ph.D.

Future Forces Forum Future Forces Exhibition 2016 Geospatial, Hydrometeorological and GNSS (GEOMETOC) Workshop 2016

External consultant
National Security Authority


Facing the New Era of Widespread Attacks on GNSS

The software-defined radio (SDR) concept not only dramatically changes the way we design our new radio applications, it also significantly alters the way on how to effectively break them. We review the contemporary widely accessible GNSS hacking tools by presenting efficient GPS L1 C/A spoofing attacks based just on public SDR internet sources. Despite the extreme simplicity, their impact on COTS GPS receivers is often devastating. Direct extension towards successful GLONASS meaconing attack is also shown and the impact on other GNSS services is discussed. The aim is to provide concrete inputs for practical risk analyses and penetration tests in e.g. financial security area.

Curriculum Vitae


1999 – 2004: Ph.D. in Computer Science / Applied Mathematics

combined study at Czech Technical University in Prague, Faculty of Electrical Engineering, and Charles University in Prague, Faculty of Mathematics and Physics

honoured by Best Doctoral Work Award of the Rector of CTU


1996 – 1999: M.Sc. in Computer Science

Czech Technical University in Prague, Faculty of Electrical Engineering


1993 – 1996: B.Sc. in Electronics

Czech Technical University in Prague, Faculty of Electrical Engineering


Professional Experience:

2003 – yet: Principal Cryptologist of Raiffeisen Bank International


2001 – 2003: Senior Cryptologist , ICZ, a.s.


1997 – 2001: Developer of Embedded Applications, Decros, s.r.o.


Achievements (selected):

2013:     Passkey authentication of Bluetooth Low Energy broken even for one-time passwords – standard was updated


2011:     Cryptanalysis of the international payment cards protocol EMV – resulted into an EMV standard update and worldwide audit of payment card processors


2003:     Cryptanalysis of SSL/TLS protocols – significant worldwide response, standard was updated (cf. RFC 5246, ref. [KPR03])


2001:     Cryptanalysis of OpenPGP – international impact and response

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