I have wrapped the cryptographic functions from Cube 2 to make it simple to include them in separate programs. Included are Python, Javascript, C, and C++ bindings.
The project can be found on github.
Comments and criticism are welcome, but there is no need to inform me of how much of niche item this is.
I hope others find this useful. I certainly needed access to these enough that it was worth putting them out in their own library.