BA1RY/hill-cipher-4x4

Encrypted Message Board implemented using Hill Cipher Encryption algorithm which uses 4x4 key matrix.

Encrypted Message Board using 4x4 Hill Cipher

Encrypted Message Board implemented using Hill Cipher Encryption algorithm which uses 4x4 key matrix.

Constraints

• Does not support numbers, special characters.
• Key matrix should be invertible modulo 26.

Tech Stack used

• python
• flask
• flask-socketio
• jquery
• bootstrap

Usage

1. pip3 install flask flask-socketio
2. python3 main.py

Key Matrix

An example for 4x4 key matrix is:

8  6 9  5
6  9 5  10
5  8 4  9
10 6 11 4

Required condition: Key matrix should be invertible modulo 26.

Screenshots

• Encrypted messages

  

• Decrypted messages