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On Thursday 13 December 2001 17:02, Jerome Etienne wrote:
<snip>
> suppose you are the attacker and get data encrypted with a block
> cipher, two or more cipher texts block are equal, which information
> did get from it ?
<snip>

Cryptography isn't compatible with common sense. Read a good book about 
it, then come back. Sorry.

Marc

- -- 
Eternal vigilance is the price of liberty   -- Thomas Jefferson
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Linux-crypto:  cryptography in and on the Linux system
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