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Re: PGP-Domo...
In <[email protected]>, on 04/02/97 at
11:48 PM,
[email protected] said:
>On another mailing-list, there has been a lengthy discussion going on
>about encrypting the list-traffic or not.
>Although I personally agree, that encrypting a public mailing list is kind
>of useless I would like to know from a technical
>perspective if PGPdomo supports _both_ PGP and plain-text
>simultaneously on the same mailing list (if no public key
>available, send plain-text, otherwise encrypt).
>Also, considering the time it takes to encrypt/sign a message for each
>individual user (assuming they use pgp), isn't that too much overhead for
>the list-server, when we deal with a few hundred people and maybe traffic
>like on cypherpunks?
>Any experiences from PGP-Domo users/admins would be greatly
>appreciated.
I haven't used PGP-Domo but I have run a PGP mailing list using my own
software for OS/2.
You can cut down on some of the overhead by encrypting the message with
multiple keys but this increases messages size. If you have a large # of
subscribers you may wish to break up your encryption into blocks, say 25
keys per message. I think it will depend on your system on how may
subscribers & messages you could handle on a daily basis. Say a user base
of 1000 subscribers with 100 messages/day that's 100,000 encryptions per
day. While I think this would be doable on a PC you would have some
serrious lag. For a large subscription base I would go to a digest format.
This would cut down those 100 messages to say 5-10 digests. This would get
you to 5-10,000 encryptions which would be much more doable.
On the mailing list that I am running I only have 4-5 messages a day with a
user base of ~130 so volume has not been a problem. :)
--
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William H. Geiger III http://www.amaranth.com/~whgiii
Geiger Consulting Cooking With Warp 4.0
Author of E-Secure - PGP Front End for MR/2 Ice
PGP & MR/2 the only way for secure e-mail.
Finger [email protected] for PGP Key and other info
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