The Advanced Encryption Standard (AES)
-  Result of a public process
 -  Evaluation criteria:
-  Security
 -  No licensing
 -  Computational efficiency
 -  Memory requirements
 -  Flexibility (key size, block size, time/memory tradeoffs)
 -  Hardware and software suitability
 -  Simplicity of design
 
 -  Acts on 128-bit blocks
 -  Key 128, 192 or 256 bits (for 10, 12, 14 rounds)