OSEC

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Subject: one time pad and random num gen
From: John Kedzie (johnkedziehotmail.com)
Date: Mon Oct 02 2000 - 04:16:18 CDT

One Time Pad questions...

would using two keys be more secure?

lets say I have the plain text message: "JONATHAN"
and I encrypt it with: "AABCEHMU"
because i have a terrible random string maker
that gave me 1,1,2,3,5,8,13,21, which i converted to
letters of the alphabet...
so I end up with: "KPPDYPNI"

now i know this is a really simple example, but lets say that
someone gets the encrypted message, and knows that it
starts off as "JO........................." somehow. They would
be able to figure out the rest of the pattern and find out
the other characters (this example is supposed to represent
someone using a bad random num generator)

now, instead of only using one key set, what about using two?
if i used two key sets of random numbers, each set made
from a different process, than wouldn't that be much much
more secure?

the key would have to be twice as long as the message, but
if you are going to the trouble to exchange keys, what's
exchanging 2 floppy disks/cdroms instead of 1?

good idea? bad idea? thanks

john

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