AES in GCM mode in Python [closed]

Answer 1

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.

Answer 2

I have just finished looking for an EAX or GCM mode AES encryption algorithm in python. This was a particularly difficult search because I was unable to download the PyCrypto alpha version, which includes both of these, due to a dependency issue.

Eventually I turned to an offshoot of pycrypto that can be pip installed without issue, and has a stable release of GCM.

http://pycryptodome.readthedocs.org/en/latest/src/introduction.html

Answer 3

PyCrypto has added AES-GCM support in the 2.7a1 release. I'm pretty sure this is an alpha release at this point.

https://github.com/dlitz/pycrypto

Answer 4

The PyCA cryptography library provides AES-GCM: https://cryptography.io/en/latest/hazmat/primitives/symmetric-encryption/#cryptography.hazmat.primitives.ciphers.modes.GCM