A simple Python-based message encryptor with Fermat key support
Sicher (German for "secure") is a lightweight Python tool that enables message encryption and decryption using a custom algorithm with support for Fermat prime keys. Ideal for educational purposes, small-scale encryption tasks, or just exploring cryptographic concepts.
- 🔑 Custom encryption & decryption logic
- 🧠 Support for Fermat number-based keys
- 📦 Just one dependency, easy to run
- 🧪 Simple CLI-based usage
- Python 3.7+
- No external dependencies (pure Python)
Clone the repository:
git clone https://github.com/bedxnta/sicher.git
cd sicher
python3 main.py