[Mailman-Developers] PGP and Mailman

[Nigel Metheringham]

On Wed, 2005-03-02 at 13:28 +0100, Stefan Schlott wrote:
> Nigel Metheringham wrote:
> 
> > In theory, you could encrypt the message once with a session key, and
> > then distribute it n times, each time adding the packet which has the
> > session key encrypted with the public key of the recipient. 
> 
> ...which is the very thing making gpg encryption so slow :-)
> The expensive part is the public key operation, not the symmetric 
> encryption.

True.  But you need to do n public key operations for n recipients
anyway.  All I am changing is whether or not you attach them all to one
message, or make n copies of the message each with one public key
encrypted session key packet.

	Nigel.
-- 
[ Nigel Metheringham           Nigel.Metheringham at InTechnology.co.uk ]
[ - Comments in this message are my own and not ITO opinion/policy - ]