Hello,

I'm trying to use the AES algorithm of 0.9.7beta in my own program.

For setting the key schedule there are 2 apis:

AES_set_encrypt_key()
and
AES_set_decrypt_key()

Initially I used both of the fxns and set the same userkey to 2 different 
schedules, one for encrypting and the other for decryption.

Under the cfb128 mode which i've tried. This didn't work out -- i could not 
decrypt the data with the decrypt-schedule.

If i've used only one of the set key fxns, for example just stick to 
AES_set_encrypt_key() with the same userkey, then it can decrypt the data.

What is the purpose of AES_set_decrypt_key() then in this case..how is it 
being used? Under what situation?

Thank you in advance,
Louis Lam


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