p2p_vpn.py

import torch
import socket

# Connect to the VPN server
server_address = ('vpn.example.com', 12345)
client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
client_socket.sendto(b'0:' + b','.join(map(str, public_key.tolist())), server_address)

# Receive the public keys of other users
peer_public_keys = {}
while len(peer_public_keys) < 9:
    data, address = client_socket.recvfrom(1024)
    user_id, public_key = data.split(':')
    user_id = int(user_id)
    public_key = torch.tensor(list(map(float, public_key.split(','))))
    peer_public_keys[user_id] = public_key

# Encrypt and send data to other users
while True:
    data = input('Enter data to send: ')
    for user_id, public_key in peer_public_keys.items():
        encrypted_data = public_key * torch.tensor(list(map(float, data.split(','))))
        client_socket.sendto(encrypted_data.tolist(), users[user_id]['peer_address'])