Kyle Hamilton wrote:
> avoid ECB mode.  Schneier's _Applied Cryptography_ goes into why, but
> basically it has to do with the fact that once someone knows the
> plaintext of a given block, that block will always be transparent to
> them.

A great demonstration with images at
http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation

-- 
  Heikki Toivonen


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