Cruising the stacks and finding stuff
Victor Duchovni
Victor.Duchovni at morganstanley.com
Mon Apr 21 13:43:55 EDT 2008
On Fri, Apr 18, 2008 at 08:02:28PM -0700, Allen wrote:
> Granted A5/1 is known to be very weak, but how much weaker than
> AES-128? Ten orders of magnitude? I haven't a clue ...
This is usually the point where I stop reading. Of course 10 orders of
magnitude is ~33 bits, so unless the A5 attacks crack a cipher with ~95
bits security, the estimate is grossly wrong.
If (generously) A5 is 64 bits of work, AES is ~20 orders of magnitude
stronger.
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