The cryptography library (pycryptodome [3]), which we have used in our implementation, at the time of writing, did not support Diffie-Hellman (DH) and Elliptic Curve Diffie-Hellman (ECDH) algorithms.

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

By Nate Lawson, Root Labs I recently found a security flaw in the Google Keyczar crypto library. The impact was that an attacker could forge signatures for data that was “signed” with the SHA ...

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).