Encrypting byte array

From: Etienne Charland (mystery@golden.net)
Date: 03/25/03 

From: "Etienne Charland" <mystery@golden.net>
Date: Tue, 25 Mar 2003 16:21:07 -0500

I need a function that encrypts (another one to decrypt) a byte array, and
returns the encrypted byte array. I've done it using CryptoStream, but this
gives very poor performances since I convert the bytes into a stream,
encrypt with CryptoStream (wich converts to byte arrays internally), and
then convert the result stream into a byte array. Have anyone done such a
function that works directly with ICryptoTransform to convert blocks of
data? If yes, could I have a link? If not, I have another question. Since
block sizes are fixed (16 bytes for Rijndael), how do I know the length of
the data during decryption? When encrypting, I have to add padding, but
then, on decryption, I don't know what is the data and what is the
padding...

Thank you very much for your help

Etienne

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