Matrix: Support for encrypted chatrooms

42wim / matterbridge

bridge between mattermost, IRC, gitter, xmpp, slack, discord, telegram, rocketchat, twitch, ssh-chat, zulip, whatsapp, keybase, matrix, microsoft teams, nextcloud, mumble, vk and more with REST API (mattermost not required!)

Apache License 2.0

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Matrix: Support for encrypted chatrooms #1187

Open BenWiederhake opened 4 years ago

BenWiederhake commented 4 years ago

The bridge currently doesn't support encryption, because gomatrix doesn't support it, and doesn't plan to support it anytime soon: https://github.com/matrix-org/gomatrix/issues/31#issuecomment-565988610

By now, Rooms on Matrix are encrypted by default, which is why I "reopen" the old issue (#170).

Maybe it's a good idea to switch to mautrix-go, because it supports E2EE, and it's based on gomatrix (so hopefully migration will be easy).

I could try to migrate it myself, but before I put any effort into that I'd first like to hear what @42wim thinks about this.

In case anyone is interested, this is the current situation:

Sending to an unencrypted Matrix room works fine
Receiving from an unencrypted Matrix room works fine
Sending to an encrypted Matrix room works, but the message is displayed as "(!) Unencrypted" to other Matrix users
Receiving from an encrypted Matrix room doesn't work, ./matterbridge -debug shows no output whatsoever.

qaisjp commented 4 years ago

Have you tried setting this up? https://github.com/matrix-org/pantalaimon

Not convenient that it uses Python, though.

TheHolyRoger commented 4 years ago

@BenWiederhake have you done any work on this yet? would be happy to move to mautrix-go since gomatrix aren't puling their finger out

BenWiederhake commented 4 years ago

I haven't, because I haven't heard anything from go-matrix. I'd be very happy if you can do this.

TheHolyRoger commented 4 years ago

I had a look last night and it really doesn't look too difficult, and I'm a GO noob... @42wim any thoughts on this? I'd be happy to help out, I learn quick :)

42wim commented 4 years ago

@TheHolyRoger i'm open for PR's to fix this, I don't mind going to mautrix-go but it should also support the extra stuff I've added to matrix-go. I don't have the time at the moment to do this myself.

Mikaela commented 4 years ago

If I understand this blog post correctly, Matrix-org itself isn't using go-matrix anymore having switched to mautrix-go.

https://matrix.org/blog/2020/09/08/gsoc-report-e-2-e-encryption-for-go-neb

BenWiederhake commented 4 years ago

Excellent! Even more reason to switch to mautrix-go.

unode commented 1 year ago

Keeping an eye on this as we would be interested in having support for encrypted rooms. Thanks to everyone making it possible.

BenWiederhake commented 7 months ago

As a workaround, you can use pantalaimon: https://github.com/42wim/matterbridge/wiki/Section-Matrix-%28basic%29#example-with-pantalaimon