This is a simple project which aimed to implement the entire Signal protocol in go, it was abandoned.
Everyone is free to use it, fork it, modify it and maybe even continue it.
Note If you want to continue this project, feel free to do so, just let me know so i can link your fork here.
It only implements the X3DH key exchange using XEdDSA.
The XEdDSA code was taken from smallstep/crypto which is licensed under the Apache License 2.0.
This code uses the 25519 curve but it shouldn't be hard to change it to the 448 curve.
It was written following the Signal protocol specification.
Warning This code is not secure, it was written just for fun and to learn about the signal protocol.
I don't recommend using it in production.
Note This was tested only on windows but it should work everywhere, however i don't have plans to update it anymore.
Build the project with go build and run it with ./godh.
This code is not affiliated in any way with the Signal Foundation.