Work & Research

The Kasper & Oswald team went throuth years of education and collaboration at the Chair for Embedded Security and in various IT security projects. We have a highly qualified technical background in secure design and implementation of cryptography and security analysis of embedded systems. Through years of collaboration Kasper & Oswald GmbH is well connected to the internationally leading research groups in embedded security and to many providers of security solutions from different fields. This continous close involvement into technologically leading projects assures that our team is strongly qualified at state-of-the-art IT security knowledge. We use our unique know-how for our own concepts and prototype studies and support our customers with sophisticated tools and methods to evaluate and improve the security of their systems and to learn from our wide experience in studying embedded security vulnerabilities.

Benefit from our expertise:

We provide independent analyses, individual consulting services and security solutions specifically tailored to your applications.

Side-Channel Analysis and Fault Injection

In contrast to analyses only targeting the mathematical foundations of security systems, implementation attacks are able to efficiently exploit vulnerabilities independently of the cryptographic strength of the underlying crypto primitives. In consequence these analyses can also be applied to secure standard algorithms such as the advanced encryption standard (AES). Implementation attacks exploit the real-world physical behaviour of practical security implementations: passive side-channel analysis attacks for example may analyze measurements of the power consumption of a security device to extract secret keys in a short time. On the other hand there are active fault injection attacks which aim for disturbing the execution of cryptographic algorithms within computing devices to invalidate security mechanisms.
Read more …

Side-Channel Measurement Setup

Contactless Smartcards and RFID-Token

Contactless Smartcards, i.e. microcontroller chipcards equipped with an RFID interface, have been widely adopted for payment, access control and identification solutions. In this contect many platforms, from simple fixed code systems over Mifrace Classic to Mifare DESFire MF3ICD40 have been proven insecure. Besides vulnerabilities of the underlying hardware also flaws in the design of the backend have often been shown to be the root of the insecurity of the overall system, thus often attacks remain undetected.
Read more …

glass_rfid

KeeLoq and Electronic Access Control

Systems for electronic access control rapidly replace many applications of conventional mechanical keys. At the example of the KeeLoq© system, a system widely employed for garage door remotes – it has been shown that these systems cannot withstand a determined attacker. Due to the usage of radio interfaces the impact of successful attacks are much more severe than in conventional mechanical systems, as there is no need for an attacker to have physical access to the targeted system.
Read more …

Electronic Access Control System

Security of Automotive Remote Keyless Entry Systems

Electronic comfort remote controls have outpaced conventional mechanical locks within modern cars. Kasper and Oswald analyzed the security of several common automotive comfort remotes by means of case studies and found previously unknown security risks for car owners.
Read more …

FPGAs and Bitstream Encryption

FPGAs, i.e. programmable logic ICs, are a versatile building block for many (especially performance-critical) applications. In security critical applications not only the hardware resources of the devices are important, but also special attention has to be paid to the available protection mechanisms of the device to withstand attacks. Research results in this area have shown that the encryption mechanisms for protecting the device configuration (bitstream) that is provided by the device manufacturers can be invalidated by means of side-channel attacks. In addition also security primitives implemented in FPGAs are often vulnerable to attacks unless specifically hardened with appropriate countermeasures.
Read more …

FPGA