Data encryption and Python security libraries

Encryption is critical for protecting sensitive data while in transit and at rest. By encrypting data, you ensure its secrecy and prevent unauthorized access, even if it is intercepted or accessed by unauthorized parties.

While data encryption is not solely a secure coding practice, it is an essential component of all software development processes to ensure the confidentiality and integrity of sensitive information.

This section will explore various encryption techniques and security libraries in Python, focusing on symmetric encryption, asymmetric encryption, and hashing.

Symmetric encryption

Symmetric encryption uses the same key for encryption and decryption. It is efficient and capable of encrypting enormous volumes of data. One popular Python library for symmetric encryption is the cryptography library, which provides a variety of cryptographic recipes and primitives.

One effective method is using Fernet, a symmetric...