AES Evaluation Criteria used by nist to evaluate potential candidates Initial criteria Security ·COS Algorithm characteristics Final criteria General security hardware Implementations Software Implementations Attacks on Implementations Restricted-space environments Encryption Vs. Decryption Flexibility Key agility6 AES Evaluation • Criteria used by NIST to evaluate potential candidates – Initial Criteria: • Security • Cost • Algorithm characteristics – Final Criteria: •General Security •Software Implementations •Restricted-space environments •Flexibility •Hardware Implementations •Attacks on Implementations •Encryption vs. Decryption •Key agility