How to create an electronic signature file (.sig) using Python?

Question

Python

Good afternoon!
It is very necessary to implement the file signing mechanism (i.e., creating a detached electronic signature .sig file) using Python 3.
In search of solutions, I came across materials for older versions of Python that are not supported now.
Valid certificates (cer, pem) are available.
Share your experience.

Answer 1

Do you know what ECP is? This is the hash sum of the file encrypted with the private key.
The hashing and encryption functions are implemented in a fairly modern cryptography library (
a fork of pycrypto). Examples can be found in the documentation or google.