Evaluation of countermeasures against electromagnetic analysis

The scope of this paper is twofold. (1) It aims at introducing a low cost near-field mapping system. This system scans automatically and dynamically, in both time and frequency domains, the magnetic field emitted by integrated circuits during the execution of any repetitive sequence of instructions. In the time domain, this system is used to automatically obtain a full chip simple electromagnetic analysis (SEMA). (2) To describe the application of this system for the evaluation of certain design and technological countermeasures against malicious electromagnetic analyses.