SPEAKER: Nathan Keller TITLE: An overview on the security of the Advanced Encryption Standard Abstract: The Advanced Encryption Standard (AES) is the most widely used block cipher today, after winning a competition held by the National Institute of Standards in 2001 as the new US standard for block cipher encryption. Since then, its security had been analyzed by numerous cryptanalysts, but despite the hard effort, none of the attacks endanger the security of the AES in the standard attack models, and even "academic" weaknesses of the full AES in such models weren't found. However, some weaknesses were found in less standard models, e.g., the related-key model which is a threat if the AES is used as a basis for a hash function, or in the realm of side-channel attacks. In this talk, I will survey the security status of AES and present the best known cryptanalytic results on it in various models. The tak will be self-contained and will require only minimal knowledge of modern cryptanalytic techniques.