from preamble:
"Change Set: AES Date: 24 November 2006 Author: Timothy J. Miller
Refactored as a single class with a stab at a factory method. Someone should probably check to make sure I'm doing the generation in a sane fashion. If an invalid key length is used, 256 is used as a default. And I should get to bed, I know. Tested with the FIPS 197 test vectors. I promise I'll work on a test class next."!
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