Abstract
In this work, we present a novel core implementation of the Advanced Encryption Standard with an integrated countermeasure against side channel attacks, which can theoretically increase the complexity of a DPA attack by a factor of 240. This countermeasure is based on mathematical properties of the Rijndael algorithm, and retains compatibility with the published Standard. The entire system was designed from the ground up to allow the reutilization of the building blocks in many different combinations, thus providing for design space exploration. Synthesis results show that the protected core can perfectly meet the performance constraints of currently used smart cards.
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