Hi all, I'm currently working on my GSoC proposal for the GNU Mailman project, which aims to implement encrypted mailing lists. I noticed that Tor project uses Mailman and has a few private lists as well. I think that Tor project's private lists might be a great example that could use such encrypted lists. What requirements would Tor project have of such encrypted mailing list? This would help me better understand potential uses of encrypted mailing lists in a real environment. My proposal uses PGP/MIME. A short description follows: It establishes a list keypair which subscribers use to encrypt their messages with. A user needs to present a PGP public key on subscription which will be later used to encrypt messages from the list. List owner moderates the list and accepts users subscription. User has to prove ownership of the key by signing a confirmation token. Subscriber then sends messages encrypted with list key and signed with the one he subscribed with. He receives messages encrypted to his key and signed by the original author as well as the list itself. Commands will require signature and confirmation too. A more detailed proposal can be found in the links below. -Jan ----- [Project idea]: https://wiki.list.org/DEV/Google%20Summer%20of%20Code%202017#Encrypted_Lists_I [Proposal draft (site)]: https://neuromancer.sk/page/gsoc/mailman [Proposal draft (PDF)]: https://neuromancer.sk/static/mailman.pdf
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