Re: Crypto Mini-FAQ

In article <[EMAIL PROTECTED]>, 
[EMAIL PROTECTED] says...
> Moore's law makes RSA stronger, provided you upsize your key at
> regular intervals. Because of moore's law i can use a bigger key to
> encrypt and decrypt at the same speed as a smaller key..
> 
> Because adding bits to the key makes an attack harder more faster than
> it slows the encryption process down.. Upsizing your key gives you
> more bang per buck, so to speak.. You get more security for the same
> amount of CPU time.

That's true, for things encrypted "later on".  The problem I believe is
that it means anything that you sent to someone else in a fashion where
it could be intercepted that was encrypted with a reasonable key size
for that time period can likely be broken in the future.  Moore's law 
makes your data very hard to secure if the time interval over which
the security is needed is long, rather than brief.  IE, the contents
are not tomorrow's corn future results, but rather a trade secret for
your business that might remain valuable 15 years from now.

-- 
Randy Howard            _o     
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