#!/usr/bin/env python3
import socket, ssl, threading
from cryptography.fernet import Fernet
from hashlib import sha256

class SecureTunnel:
    def __init__(self, target, port=443):
        self.target = target
        self.port = port
        self.key = Fernet.generate_key()
        self.cipher = Fernet(self.key)
        self.ctx = ssl.create_default_context()

    def establish(self):
        sock = socket.socket(socket.AF_INET)
        wrapped = self.ctx.wrap_socket(sock)
        wrapped.connect((self.target, self.port))
        return self._handshake(wrapped)

    def _handshake(self, conn):
        token = sha256(self.key).hexdigest()
        conn.send(token.encode())
        resp = conn.recv(4096)
        return self.cipher.decrypt(resp)

def scan_network(subnet, ports=[22,80,443]):
    hosts = []
    for host in ipaddress.IPv4Network(subnet):
        for port in ports:
            try:
                s = socket.socket()
                s.settimeout(0.5)
                s.connect((str(host), port))
                hosts.append((str(host), port))
            except: pass
    return hosts

if __name__ == "__main__":
    tunnel = SecureTunnel("10.0.0.1")
    tunnel.establish()
    results = scan_network("192.168.1.0/24")
    for host, port in results:
        print(f"[+] {host}:{port}")
    logging.info("Scan complete")