> You have claimed to multiple open source projects that they are not allowed to publish applications on App Stores that use the Signal Protocol's four-way signed-plus-one-time-prekey handshake in combination with the Axolotl ratchet, even if they write their own implementation from scratch, because since the only existing original specification of such a protocol is your libsignal, all other implementations are, in your words, "necessarily derived work."
This is an interesting question. My primitive understanding is that as long as there are no patents on the algorithm no one can prevent a clean room design.
Is that right?