A Python project for learning cryptography. Made for MTH 349.

This project has:

• 4 math functions: modular exponentiation, GCD, modular inverse, primality test
• 7 classic ciphers: Caesar, Monoalphabetic, Vigenère, Transposition, Playfair, ADFGVX, DIANA
• RSA: public-key encryption
• Analysis tools: frequency tables, adjacency tables, entropy

# Clone the repo
git clone https://github.com/dreuxx/cryp.git
cd cryp

# Create virtual environment
python3 -m venv venv
source venv/bin/activate

# Install dependencies
pip install numpy pandas scipy

# Activate environment
source venv/bin/activate

# Run the program
python main.py

Then choose an option:

=== CRYPTO PORTFOLIO ===
1. All ciphers demo
2. Vigenere only
3. Vigenere freq tables
4. RSA only
5. Frequency analysis

Option: 

Option: 2
Text: ATTACK
Key: LEMON
(e)ncrypt or (d)ecrypt? e

Ciphertext: LXFOPV

• Python 3.8+
• numpy
• pandas
• scipy