vpn.client

-- below is code
local component = require("component")
local event = require("event")
local term = require("term")

local modem = component.modem
local data = component.data

local publicKey, private = data.generateKeyPair()

print("Connecting to client...")
modem.open(6242)
modem.broadcast(6241,"vpnlookup")

local iv = 1234

local _,_,from,port,_,reply = event.pull("modem_message")
local _,_,from,port,_,serverPublicKey = event.pull("modem_message")
modem.send(from, 6241, publicKey.serialize())

serverPublicKey = data.deserializeKey(serverPublicKey, "ec-public")
if not serverPublicKey then
  print("THIS KEY IS MISSING")
end
local shared = data.ecdh(private, serverPublicKey)
shared = data.md5(shared)
local _,_,from,port,_,niv = event.pull("modem_message")
iv = niv

print("Session ready...")
while (true) do
  term.write("Message: ")
  local msg=term.read()
  modem.send(from, 6241, data.encrypt( msg, shared, iv ) )
end