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Erschienen in:
2005 | OriginalPaper | Buchkapitel
Small Size, Low Power, Side Channel-Immune AES Coprocessor: Design and Synthesis Results
verfasst von : Elena Trichina, Tymur Korkishko, Kyung Hee Lee
Erschienen in: Advanced Encryption Standard – AES
Verlag: Springer Berlin Heidelberg
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When cryptosystems are being used in real life, hardware and software implementations themselves present a fruitful field for attacks. Side channel attacks exploit information such as time measurements, power consumption, and electromagnetic emission that leaks from a device when it executes cryptographic applications. When leaked information is correlated to a secret key, an adversary may be able to recover the key by monitoring this information. This paper describes an AES coprocessor that provides complete protection against first-order differential power analysis by embedding a widely used software countermeasure that decorrelates data being processed from the leaked information, so-called data masking, at a hardware level.