I am looking for exactly the same thing, and strangely enough I cannot find any "official" solutions, just those:
- this small wrapper (used for iphone tools?)
- this github code drop which does AES GCM in Python, and nothing else
So it looks like the answer above (which I have upvoted) is right, you have to do the maths yourself.. It's a shame there isn't a python wrapper for a C/assembly library because the latest CPUs provide hardware acceleration for those calculations, and we won't benefit from those with a pure python solution.
