Re: How secure is 2048 bit RSA?

From: Michael Amling (nospam_at_nospam.com)
Date: 04/09/04 

Date: Fri, 09 Apr 2004 01:13:44 GMT

Bob Silverman wrote:
>>How secure is a 2048 bit RSA key? DOes it make sense to pretect a 256 bit
>>AES session key with a 2048 bit RSA public/private key pair?
>
> It does not make sense. Using a 256 bit AES key
> is in and of itself crazy.

   My understanding is that AES is approved for encryption of classified
material only when using 192-bit or 256-bit keys.
   One reason 128-bit keys are not allowed could be the difficulty of
proving that no power on earth will develop a quantum computer during
the useful life of the data protected.

--Mike Amling

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