SecureLock

SecureLock is a lightweight Python library for securely encrypting and decrypting text using a password. It utilizes salted key derivation and XOR-based encryption to ensure the integrity and security of your data.

Features

• Compact design: Only two functions, lock() and unlock().
• Salted encryption: Each encryption is unique due to a randomly generated salt.
• Key stretching: Uses SHA-256 hashing to derive a secure encryption key from the password.
• Supports all Unicode characters.

Installation

pip install securelock

Usage

Encrypting Text

from securelock import lock

password = "strongpassword"
text = "This is a secret message!"

# Encrypt the text
locked_text = lock(text, password)
print("Locked Text:", locked_text)

Decrypting Text

from securelock import unlock

# Decrypt the text
unlocked_text = unlock(locked_text, password)
print("Unlocked Text:", unlocked_text)

Example Output

Locked Text: 4a6f1c2b... (encrypted hex string)
Unlocked Text: This is a secret message!

Security Notes

• Strong Passwords: Always use strong and unpredictable passwords for maximum security.
• Key Derivation: SecureLock uses SHA-256 with a randomly generated 32-byte salt, ensuring each encryption is unique.
• Brute-Force Resistance: The implementation is designed to make brute-forcing computationally expensive.

License

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

Contributing

Feel free to submit issues or feature requests. Contributions are welcome!