Just wrote this mail to RMS.
Hi RMS,
I would like to bring up this new threat to Free Software to your notice. Tivo
prevented modified versions from running by signature check. Signal is
threatening to block modified versions from using its service.
Signal is an end to end encrypted messaging service. Its client and text part
of server is Free Software released under GPLv3. Voice part of the server is
proprietary.
Official Signal client mandated using a proprietary google service (google
cloud messaging or gcm for push notifications). So Free Software community
removed this requirement and released LibreSignal. LibreSignal uses websockets
instead of gcm.
But now Signal authors are threatening LibreSignal developers to stop using
their server.
You can see moxie0's comments at
http://github.com/LibreSignal/LibreSignal/issues/37
Quoting relevant part,
"I'm not OK with LibreSignal using our servers, and I'm not OK with LibreSignal
using the name "Signal." You're free to use our source code for whatever you
would like under the terms of the license, but you're not entitled to use our
name or the service that we run."
https://github.com/LibreSignal/LibreSignal/issues/37#issuecomment-217211165
We can easily rename, but not allowed to use effectively makes right to modify
meaningless.
Also if we were to run a server by our own, they refuse to federate with it.
They had previously federated with cyanogenmod project's servers, but now
backed off from federation.
It would be good if you can write about this new threat to Free Software at
gnu.org.
There is another Free Software replacement for proprietary secure messaging
services like WhatsApp called Kontalk. It federates with any xmpp server, but
it lacks resources to implement features to match Signal (groups, forward
secrecy, voice calls etc). It would be good if FSF adds kontalk as a high
priority project.
We have to prevent such traps in a future version of GPL like how we stopped
tivoization in GPLv3.
Thanks
Praveen
#Signal #LibreSignal #WhatsApp #Telegram #Kontalk
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
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