Encrypted mailing lists?

[The Doctor]

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On 08/21/2013 03:49 AM, Matej Kovacic wrote:

> I think that it would be really great if Mailman (and other mailing
> list applications) would support encryption. When user will
> register to mailing list he or she should send his/her public GPG
> key to the Mailman server. He/she would then receive public GPG key
> of mailing list.

Not a bad idea.

> All mail sent to the list should then be encrypted (recipient is
> mailing list address and user has it's public GPG key). Mailing
> list would then decrypt it, and deliver that message to it's users
> encrypted and signed.

A given message could be encrypted to the public keys of every
recipient of the list - entirely doable.  It could even be done with
gpg and the -R option (Encrypt to user ID, but hide the key ID).  Not
that this would particularly help with publically archived mailing
lists because the e-mail addresses of origin would be public (SMTP
spoofing as a way of life?)

> What do you think?

I think it's an experiment that would generate interesting results.
I'd be especially interested in seeing what CPU utilization on the
server side is like under varying traffic loads (for better speccing
out servers to run such a mailing list).

- -- 
The Doctor [412/724/301/703] [ZS]
Developer, Project Byzantium: http://project-byzantium.org/

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