I’m by no means an expert in this field, but my impression is that Signal’s protocol is state of the art when it comes to end-to-end-encrypted messaging. https

I’m by no means an expert in this field, but my impression is that Signal’s protocol is state of the art when it comes to end-to-end-encrypted messaging. https://github.com/WhisperSystems/libsignal-protocol-java https://github.com/WhisperSystems/libsignal-protocol-java Edit: Some more pointers for those interested: https://whispersystems.org/blog/signal-inside-and-out/ https://whispersystems.org/blog/signal-inside-and-out/