Hi,
Have either of you solved the problem of Mailman not preserving
white space in the message body? This kind of thing is death to messages signed or encrypted with PGP, and I have yet to hear of anyone who has addressed this issue.
As already mentioned, I didn't cover the sign-only case; I tried to implement an encrypted mailinglist, thus the space-signature-killer was no concern :-)
I didn't figure out at
first glance how chunking works... otherwise, a mail might be encrypted to several recipients - increasing its length by several bytes, but reducing the number of forks of gpg processes.
You definitely need to encrypt the message to all recipients, then
send out one copy. Anything else would be prohibitively expensive in terms of computation time for any reasonable number of recipients.
This will create huge messages in large MLs. Further, this will reveal all recipients' key ids - something not wanted in anonymous lists. Imho the tradeoff lies somewhere inbetween - encrypt messages to n recipients (yet to be implemented).
Stefan.