How many keys in AES?

[shivajikobardan]

Say we've 16 byte(128 bit) key. So, how many keys would be required?

So, imo. 128 bits key would require 10 rounds

Initial Round(also called add round key), then 10 rounds(including the last round), so we'd require 11 different keys. Am I correct?

 

[ILIA KALISTRU]

11 different keys generated using key schedule. See https://en.wikipedia.org/wiki/AES_key_schedule and https://en.wikipedia.org/wiki/Advanced_Encryption_Standard for more details.