saghal/diffe_hellman_aes

Diffie-Hellman algorithm for key exchange with AES encryption

Simple implemention of AES-128 with Diffie-Hellman algorythm for key exchange between client and server (socket)

## Getting Started The program require some initial paramaters which can be produced by Openssl

Prerequisites

Install Openssl from here

then install pycrypto:

pip install pycryptodome

How to run

• step 0

  git clone https://github.com/saghal/Diffe_Hellman_AES.git
  

  • after cloning you can set new keys for client and server

• step 1

  python server.py
  

• step 2

  python client.py
  

How to generate keys

• produce DH initial parameters with openssl

  with this command in Openssl, two public parameters for DH algorithm will produce and with next command we can see them.

  dhparam -out dhp.pem 128
  pkeyparam -in dhp.pem -text
  

• how to genrate server/client public/private key

  then we can create private key for both sides and see the private keys

  genpkey -paramfile dhp.pem -out dhkey_client.pem
  genpkey -paramfile dhp.pem -out dhkey_server.pem
  pkey -in dhkey_client.pem -text -noout
  pkey -in dhkey_server.pem -text -noout
  

more information for generate this keys

• openssl DH compute key
• Diffie Hellman Secret key Exchange using openssl

helpful resources

• python sockets
• AES GCM