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To: Bill Jackson who wrote (55086)9/13/2001 7:01:10 PM
From: deibutfeifRead Replies (1) | Respond to of 275872
 
Bill, you are correct that Milan is incorrect. And his reference to Applied Cryptography doesn't make his case (I have both revisions in my library).

However, you understate the case: 8 bits increases the work-factor by 2^8=256. And that's just for the session key of an individual message. They would have to do that again for the next message (or response).

~dbf



To: Bill Jackson who wrote (55086)9/14/2001 12:10:05 AM
From: Milan ShahRead Replies (1) | Respond to of 275872
 
256 bit is uncrackable in a short enough time frame to do any good, they may be able to crack it in 5 years.

Right, I believe it is true that 256 is not crackable even by FBI. Which is why I believe that 256 bit key software is not publicly or commercially available. True, many skilled programmers could probably code it up, but this is the type of skill that I believe the terrorists do not have access to.

Milan


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