Demirci, H.Selçuk, Ali Aydın2016-02-082016-02-082008-02http://hdl.handle.net/11693/26879Date of Conference: 10-13 February , 2008Conference name: International Workshop on Fast Software Encryption FSE 2008: Fast Software EncryptionWe present a 5-round distinguisher for AES. We exploit this distinguisher to develop a meet-in-the-middle attack on 7 rounds of AES-192 and 8 rounds of AES-256. We also give a time-memory tradeoff generalization of the basic attack which gives a better balancing between different costs of the attack. As an additional note, we state a new square-like property of the AES algorithm. © 2008 Springer-Verlag Berlin Heidelberg.EnglishAESMeet-in-the-middle cryptanalysisRijndaelSquare attackAES algorithmsCryptographyConference Paper10.1007/978-3-540-71039-4_7