Skip to content

Latest commit

 

History

History
88 lines (55 loc) · 2.39 KB

README.md

File metadata and controls

88 lines (55 loc) · 2.39 KB
Raw

pyca/cryptography Explorer

This project is an exploration of the pyca/cryptography library, specifically focusing on symmetric encryption using Fernet. It demonstrates how to securely generate, store, use, and manage encryption keys, as well as encrypt and decrypt messages.

Features

  • Key Generation: Generate a key and save it to a file for later use.
  • Message Encryption: Encrypt sensitive data using the saved key.
  • Message Decryption: Decrypt encrypted data using the same key.

Requirements

To run this project, you'll need:

  • Python 3.6 or higher
  • cryptography library

You can install the required library using the following command:

pip install cryptography

Project Structure

The project consists of three Python files:

  1. generate_key.py:

    • Generates a Fernet key and saves it in a file (secret.key).
    • Run this script first to create the key for encryption and decryption.

  2. encrypt_message.py:

    • Loads the key from the secret.key file and encrypts a message.
    • The encrypted message (token) is displayed.

  3. decrypt_message.py:

    • Loads the key from the secret.key file and decrypts the encrypted message (token).
    • The original message is displayed.

How to Use

  1. Clone the Repository

    git clone https://github.com/LahcenEzzara/pyca-cryptography-explorer.git
cd pyca-cryptography-explorer

  2. Generate a Key

    Run the generate_key.py script to generate a new encryption key and save it to secret.key:

    python generate_key.py

  3. Encrypt a Message

    Use the encrypt_message.py script to encrypt a message:

    python encrypt_message.py

    The script will display the encrypted message (token).

  4. Decrypt a Message

    To decrypt the encrypted message, run the decrypt_message.py script and replace YOUR_ENCRYPTED_TOKEN_HERE in the script with the encrypted token:

    python decrypt_message.py

    The original message will be displayed.

Security Considerations

  • Always keep the encryption key (secret.key) secure. Anyone with access to this key can decrypt your encrypted data.
  • Never share the key publicly or commit it to version control.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Happy exploring the pyca/cryptography library!