SIA-PYTHON/SIA-ENCRYPTED.py

146 lines
5.0 KiB
Python
Executable File

from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
from cryptography.hazmat.backends import default_backend
import os
import socket
import datetime
import struct
from crccheck.crc import Crc16, CrcArc
import binascii
class StringMaker:
def __init__(self):
pass
def send_alarm(self, alarm_command, user_id, longitude, latitude, key, host, port):
key = bytes.fromhex(key)
now = datetime.datetime.now()
date_part = now.strftime("%m-%d-%Y")
time_part = now.strftime("%H:%M:%S")
output_coordinates = self.convert_coordinates(latitude, longitude)
input_string = f'"*SIA-DCS"0005L0#{user_id}[{user_id}|{alarm_command}]{output_coordinates}_{time_part},{date_part}'
part_before, part_after = input_string.split('[', 1)
part_before = f"{part_before}["
#part_before = f'"*SIA-DCS"0021L0#9999['
part_after = "|" + part_after
#part_after = '|9999|Nri1/BA01][Vwww.google.no]_12:10:07,12-13-2024'
encryption_part = self.add_padding(part_after)
print(f"Padded Input: {encryption_part}")
encrypted_hex = self.encrypt(encryption_part, key)
print(f"Encrypted Hex: {encrypted_hex}")
before_and_after = f"{part_before}{encrypted_hex}"
crc_hash = self.calculate_crc(before_and_after.encode())
with_hash = f"{crc_hash}{before_and_after}"
with_line_feed_and_return = f"\r\n{with_hash}\r"
message_bytes = with_line_feed_and_return.encode()
print(message_bytes)
tcp_response = self.send_bytes_with_tcp(host, port, message_bytes)
return tcp_response.decode() if tcp_response is not None else "No data from Patriot"
def to_ascii_hex(self, byte_array):
return byte_array.hex()
def add_padding(self, input_string):
# Convert the input string to bytes
input_bytes = input_string.encode()
# Calculate the pad length
pad_length = 16 - len(input_bytes) % 16
pad_length = pad_length if pad_length != 16 else 0
# Generate padding with ASCII characters
padding_ascii = bytes([i % 26 + 65 for i in range(pad_length)])
# Concatenate padding and input bytes
padded_bytes = padding_ascii + input_bytes
return padded_bytes
def get_string_after_first_occurrence(self, input_string, character):
index = input_string.find(character)
return input_string[index + 1:] if index != -1 else ""
def encrypt(self, input_bytes, key):
key_bytes = key
data_bytes = input_bytes
# Use the same initialization vector (IV) as in your decryption function
iv = b'\x00' * 16
cipher = Cipher(algorithms.AES(key_bytes), modes.CBC(iv), backend=default_backend())
encryptor = cipher.encryptor()
encrypted_data = encryptor.update(data_bytes) + encryptor.finalize()
return binascii.hexlify(encrypted_data).decode('ascii')
def decrypt(self, input_bytes, key):
cipher = Cipher(algorithms.AES(key), modes.CFB(os.urandom(16)), backend=default_backend())
decryptor = cipher.decryptor()
decrypted = decryptor.update(input_bytes) + decryptor.finalize()
return decrypted.decode()
def send_bytes_with_tcp(self, ip_address, port, data):
try:
with socket.create_connection((ip_address, port), timeout=5) as client:
client.sendall(data)
response = client.recv(1024)
return response
except Exception as ex:
print(f"Error: {ex}")
return None
def convert_coordinates(self, latitude, longitude):
# Extract numerical values for longitude and latitude
lon_value = float(longitude)
lat_value = float(latitude)
# Convert longitude to the desired format
lon_degrees = int(lon_value)
lon_minutes = (lon_value - lon_degrees) * 60
lon_format = f"[X{lon_degrees:03d}E{lon_minutes:.8f}]"
# Convert latitude to the desired format
lat_degrees = int(lat_value)
lat_minutes = (lat_value - lat_degrees) * 60
lat_format = f"[Y{lat_degrees:02d}N{lat_minutes:.8f}]"
# Combine the formatted coordinates
result = lon_format + lat_format
return result
def calculate_crc(self, input_bytes):
crc_arc = CrcArc()
crc_arc.process(input_bytes)
crc_value_hex = crc_arc.finalhex()
return f"{crc_value_hex.upper()}{len(input_bytes):04X}"
def main():
string_maker = StringMaker()
key = "594162417237323352466D3964673233"
host = "213.167.121.142"
port = 20180
ClientID = input("ClientID: ")
SignalType = "Nri/" + input("SignalType: ")
Zone = input("Zone: ")
SignalAndZone = SignalType + Zone
PosistionLat = input("Latitude: ")
PositionLong = input("Longitude: ")
result = string_maker.send_alarm(SignalAndZone, int(ClientID), float(PosistionLat), float(PositionLong), key, host, port)
print(result)
if __name__ == "__main__":
main()