Host Identity Protocol, or HIP, is a layer 3.5 solution and was initially designed to split the dual role of the IP address - locator and identifier. Using HIP protocol one can solve not only mobility ...

So does the Go crypto library. Coincidentally, the Python cryptography library removed the option only a few weeks ago (the commit for the change was made in January).

New open source encryption library is meant to be easy to implement as well as easy to audit for security issues ...