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Re: Non-PK encryption not vulnerable via low key length?!


From: perry () imsi com (Perry E. Metzger)
Date: Thu, 16 Mar 1995 15:03:19 -0500


Software Test Account says:
Okay, let's see. 2^128 = 3.4e38.  Suppose you can somehow try one
billion keys per second.  Then it will take you 3.4e29 seconds or
about 1e22 years to try every possible key.  A shorter length of
time than it would take with a 1024 bit key, but I don't think I'd
lose much sleep over it.

There must be ways of forcing convergence.  Brute force is tacky.

If you know a way to break IDEA or RC4 that is better than brute
force, you'll be very famous when you publish the paper.

Perry



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