Multi-Algorithm Cipher Suite

A comprehensive cryptographic toolkit implemented in Python 3.12. This suite provides high-performance implementations of classical and modern symmetric/asymmetric encryption algorithms, featuring both headless CLI interfaces and interactive GUI wrappers.

Technical Specifications

• Runtime: Python 3.12.0+
• Data Store: Tkinter (GUI), Argparse (CLI)
• Orchestration: Modular Provider Pattern (Logic separation from Interface)
• Security: Implementation of cryptographic primitives with a focus on educational transparency and algorithmic integrity.

Directory Structure

The project follows a decoupled architecture where each cryptographic algorithm resides in its own isolated module:

• CLI Version: Optimized for automated pipelines and shell interactions.
• GUI Version: Designed for end-user accessibility with real-time feedback.

Environment Setup

Ensure you have the required runtime and dependencies installed:

# Clone the repository
git clone https://github.com/sha-wrks/Cipher.git

# Navigate to the project directory
cd Cipher

# (Optional) Create a virtual environment
python -m venv venv #Windows
source venv/bin/activate  # Linux/macOS

Execution Documentation

The CLI implementation utilizes a standardized argument parsing strategy for seamless integration into scripts.

1. Command Line Interface (CLI)

The CLI implementation utilizes a standardized argument parsing strategy for seamless integration into scripts.

Command: python "Affine Cipher/CLI Version.py"

2. Graphical User Interface (GUI)

The GUI versions provide a stateful interaction layer for users who prefer visual input management.

Command: python "Vigenère Cipher/GUI Version.py"

3. RSA Implementation Details

The RSA module includes specific scripts for key generation and drawback analysis of small prime factors.

Command: python "RSA Encryption/app.py"

System Architecture

The codebase adheres to the following engineering principles:

1. Separation of Concerns (SoC): Cryptographic logic (mathematical functions) is strictly separated from the I/O logic (CLI/GUI).
2. Modular Extensibility: New algorithms can be integrated by following the established directory structure without modifying the core suite.
3. Defensive Programming: Extensive input validation ensures that keys (e.g., in Affine Cipher) satisfy mathematical requirements such as being coprime to the alphabet size.
4. Performance: Matrix operations in the Hill Cipher are optimized for minimal time complexity $O(n^3)$ during the modular inverse calculation.

System Architecture

This project is intended for educational and research purposes only. While the implementations are mathematically accurate, they are not intended to replace industry-standard libraries (like OpenSSL or PyCryptodome) for production-grade data protection.