What are the best practices for encryption in Python?

What are the best practices for encryption in Python?

When encrypting data in Python, it's important to use established libraries like PyCryptodome or Fernet from the cryptography package. Always use strong algorithms like AES and ensure your keys are stored securely.

How do I securely store encryption keys?

You can use environment variables, secure vaults like HashiCorp Vault, or key management services provided by cloud providers to store your encryption keys securely.

What should I avoid when implementing encryption?

Avoid using outdated algorithms, hardcoding keys in your source code, and neglecting to update your libraries regularly. Always keep security in mind.

Can you give an example of using AES in Python?

Sure! Here's a simple example using PyCryptodome:

from Crypto.Cipher import AES
from Crypto.Random import get_random_bytes

key = get_random_bytes(16)  # AES key must be either 16, 24, or 32 bytes long
cipher = AES.new(key, AES.MODE_EAX)
nonce = cipher.nonce
ciphertext, tag = cipher.encrypt_and_digest(b'my secret data')