Two Attacks on a White-Box AES Implementation

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Provided by: Katholieke Universiteit Leuven
Topic: Security
Format: PDF
White-box cryptography aims to protect the secret key of a cipher in an environment in which an adversary has full access to the implementation of the cipher and its execution environment. In 2002, the researchers proposed a white-box implementation of AES. In 2004, they presented an efficient attack (referred to as the BGE attack) on this implementation, extracting its embedded AES key with a work factor. In 2012, they presented an improvement of the most time-consuming phase of the BGE attack.
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