https://github.com/aksh-bansal-dev/idea-ecc-elgamal

Secure client-server communication using Simplified International Data Encryption Algorithm(IDEA) and ElGamal with elliptic curves.
https://github.com/aksh-bansal-dev/idea-ecc-elgamal

Last synced: 25 days ago
JSON representation

Secure client-server communication using Simplified International Data Encryption Algorithm(IDEA) and ElGamal with elliptic curves.

• Host: GitHub
• URL: https://github.com/aksh-bansal-dev/idea-ecc-elgamal
• Owner: Aksh-Bansal-dev
• Created: 2022-10-05T13:42:19.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2022-10-16T06:05:54.000Z (over 2 years ago)
• Last Synced: 2024-11-20T11:05:24.881Z (3 months ago)
• Language: Python
• Homepage:
• Size: 552 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# Simplified IDEA + ECC ElGamal

Secure client-server communication using Simplified International Data Encryption Algorithm(IDEA) and ElGamal with elliptic curves.

## How to use?

- Run `python3 server.py` to start the server

- Run `python3 client.py` to start the client

## Project structure

- `client.py` client program

- `server.py` server program

- `idea.py` consists of all code related to Simplified IDEA

- `ecc/` consists of all code related to ECC ElGamal code

## How it works?

- The message is first encrypted using a secret key provided by client using Simplified IDEA (symmetric). 

- The private and public keys are generated on the server using ECC Elgamal (asymmetric) and the public key is sent to the client after

request. 

- The secret key is encrypted using the server's public key on client-side. 

- The encrypted secret key and encrypted message is then sent server. 

- The server uses it's private key to decrypt the encrypted secret key and then uses this secret key to decrypt the encrypted message.

Simplified IDEA: [link](https://www.nku.edu/~christensen/simplified%20IDEA%20algorithm.pdf)

## Credits

- [ECC ElGamal](https://github.com/lc6chang/ecc-pycrypto)