Impact of Localized Electromagnetic Field Measurements on Implementations of Asymmetric Cryptography
Johann Heyszl · mediaTUM – the media and publications repository of the Technical University Munich (Technical University Munich) · 2013
Implementations of cryptographic algorithms must be protected against so-called side-channel attacks. This thesis investigates strengths and weaknesses of localized high-precision measurements of electromagnetic fields for side-channel analysis and demonstrates in a practical evaluation, how such measurements can be used for attacks on implementations of asymmetric cryptography. Through the combination of multiple concurrent measurements and application of methods from pattern classification, attacks on single executions become possible without prior characterization of the implementation. Appropriate countermeasures are presented to prevent such attacks.