Subversion Repositories aes-128-ecb-encoder

"""

 *  Simple python script

 *    Functions:

 *        - Send hardcoded data(key and plainText) and commands via UART

 *        - Receive and output ciphered data

 *

 *  Copyright 2020 by Vyacheslav Gulyaev <v.gulyaev181@gmail.com>

 *

 *  Licensed under GNU General Public License 3.0 or later.

 *  Some rights reserved. See COPYING, AUTHORS.

 *

 * @license GPL-3.0+ <http://spdx.org/licenses/GPL-3.0+>

"""

import serial

import serial.tools.list_ports

from time import sleep

SERIAL_PORT_PATH = '/dev/ttyUSB0'

SERIAL_PORT_SPEED = 38400

CMD_SET_KEY  = 0xF0

CMD_SET_DATA = 0xE1

PAUSE_SEC = 0.1

ser = None

receivedData = None

def main():

    ports = serial.tools.list_ports.comports(include_links=False)

    for port in ports :

        print(port.device)

    ser = serial.Serial(SERIAL_PORT_PATH, SERIAL_PORT_SPEED, timeout = 1)

    key       = [0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF]

    plainText = [0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F]

    print ('Sendeded CMD_SET_KEY:', format(CMD_SET_KEY, '02x'))

    print ('Sending Key         :', '  '.join(format(byte, '02x') for byte in key))

    ser.write(chr(CMD_SET_KEY))

    sleep(PAUSE_SEC)

    for byte_key in key:

        ser.write(chr(byte_key))

    print ('Sendeded CMD_SET_DATA:', format(CMD_SET_DATA, '02x'))

    print ('Sending plainText:', '  '.join(format(byte, '02x') for byte in plainText))

    ser.write(chr(CMD_SET_DATA))

    sleep(PAUSE_SEC)

    for byte_plainText in plainText:

        ser.write(chr(byte_plainText))

    print ('Waiting ciphered data...')

    received_ok = False;

    while (received_ok==False):

        receivedData = ser.readline()

        if (len(receivedData)>0):

            print('Data:', '  '.join(format(ord(byte), '02x') for byte in receivedData))

            received_ok = True

if __name__ == "__main__":

    main()