Cryptography via Fernet in Python

A useful little program to encrypt/decrypt messages and generate keys.

A simple, class based, wrapper for the Fernet Cryptography module. Fernet encryption is one of the most secure ways to encrypt a message. Per the documentation, the only way to read the message is to have the secret key.

You can find more information about the encryption method here.

Installation instructions for the Cryptography package found at https://cryptography.io/en/latest/installation.html

Usage

Create an encrypted message:

secret = Cryptography()
message = secret.encrypt_message('Highly classified message!')

Decrypt a message:

• You will need the secret key that encoded the message stored in a file

  secret = Cryptography('secret.key')
  message = b'gAAAAABgJDybBjk_n-KXci4Ri8w_y1s1QN3yehVymhAP4hlgrf_marbifFko0Ynvs_xgX2ZOpLEo7Gmj7fUDsQizcyNaR3uX5cSsFntVXCOPy0_XmO5_k04='
  message = secret.decrypt_message(message)
  print(message)
  # Highly classified message!