Two Intercepted Messages are Sufficient
Prof. Paar's team applied the newest code breaking technologies for developing several attacks. With the most devastating attack, car keys (or building keys) can be cloned from a distance of several 100 meters. "Eavesdropping on as little as two messages enables illegitimate parties to duplicate your key and to open your garage or unlock your car", says Prof. Paar. With another malicious attack, a garage door or a car door can be remotely manipulated so that legitimate keys do not work any more. As a consequence, access to the car or the building is not possible any more.
Newest Code Breaking Techniques
A KeeLoq system consists of an active Radio Frequency Identification (RFID) transponders (e.g., embedded in a car key) and a receiver (e.g., embedded in the car door). Both the receiver and transponder use KeeLoq as encryption method for securing the over-the-air communication. The attack by the Bochum team allows recovering the secret cryptographic keys embedded in both the receiver and the responder. The attack is based on measuring the electric power consumption of the receiver. Applying what is called side-channel analysis methods to the power traces, the researchers were able to extract the manufacturer key from the receivers. The attack - which combines side-channel cryptanalysis with specific properties of the KeeLoq algorithm - can be applied to all known variants in which KeeLoq is used in real world systems. The practicality of the attack has been confirmed by attacking actual systems which are using KeeLoq.
KeeLoq: widely used since the mid-1990s.
KeeLoq has been used for access control since the mid-1990s. By some estimates, it is the most popular of such systems in Europe and the US. Besides the frequent use of KeeLoq for garage door openers and other building access applications, it is also known that several automotive manufacturers like Toyota/Lexus base their anti-theft protection on assumed secure devices featuring KeeLoq.
IT Security Research in Bochum
Prof. Paar's group is part of the Horst Görtz Institute for IT Security (HGI), one of the largest university-based security research centres in Europe. Prof. Paar's group is internationally renowned for their work in securing and analysing embedded security systems. Ruhr University Bochum has the most comprehensive offerings in IT security education (Bachelor, Master, distance learning) in Germany.
Prof. Dr.-Ing. Christof Paar, Communication Security Group, Faculty of Electrical Engineering and Information Science, Ruhr University of Bochum, D-44780 Bochum, Germany, E-Mail: firstname.lastname@example.org, Phone: +49 234 32 22994
Web linksMore information about the KeeLoq attack
Dr. Josef König | idw
The TU Ilmenau develops tomorrow’s chip technology today
27.04.2017 | Technische Universität Ilmenau
Five developments for improved data exploitation
19.04.2017 | Deutsches Forschungszentrum für Künstliche Intelligenz GmbH, DFKI
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
27.04.2017 | Life Sciences
27.04.2017 | Physics and Astronomy
27.04.2017 | Earth Sciences