Re: opencrypto and rijndael/AES

>> 	this basically is for CFB1 mode, which uses rijndael encryption for
>> 	decryption.  that's why esp_rijndael.c did not use rijndael_ctx
>> 	(but from API pov it was a bad practice).  we of course could ditch
>> 	modes we don't need and shrink the size of rijndael_ctx.
>It's for CFB1 mode if you use the keyInstance (rk for 
>encrypt-or-decrypt and ek for CFB1), but if use the rijndael_ctx, 
>there's an ek (encrypt key) and dk (decrypt key).

	true.  i'm not 100% sure what is the intent of the author of
	rijndael_set_key().  we could simplify it to always setup key for
	both dir... where did the code come from?

itojun