ZTE Speedport Entry 2i Key Generator

zte-speedport-entry-2i-key-generator.py

#!/usr/bin/env python
#
# ZTE Speedport Entry 2i Key Generator
#
# The script generates the key for decryption and encryption
# of ZTE Speedport Entry 2i configuration file using
# https://github.com/mkst/zte-config-utility
#
# Usage:
#
# ./zte-speedport-entry-2i-key-generator.py
# MAC address: c85a9fa21821
# Serial: 268EG8JL4M16271
# Factory SSID: ZTE-ABCDEF
# Factory WLAN Key: zxcvbnmasdfg
# Factory Username: admin
# Factory Password: qwertyui
# Hardware Version: V1.0.1
# ade8b5e3e9c57a5f
#
# Configuration decryption:
#
# PYTHONPATH=./zte-config-utility
# python ./zte-config-utility/examples/decode.py config.bin config.xml --key ade8b5e3e9c57a5f
#
# Configuration encryption:
#
# PYTHONPATH=./zte-config-utility
# python ./zte-config-utility/examples/encode.py config.xml config.bin --key ade8b5e3e9c57a5f --signature "Speedport Entry 2i"

from hashlib import md5

l = lambda s: len(s).to_bytes(3, "little")
a = lambda s: s.encode("ascii")

mac      = int(input("MAC address: "), 16)
serial   = a(input("Serial: "))
ssid     = a(input("Factory SSID: "))
wlan_key = a(input("Factory WLAN Key: "))
username = a(input("Factory Username: "))
password = a(input("Factory Password: "))
mac_zte  = a("54BE53")
version  = a(input("Hardware Version: "))
zero     = a("0")

print(md5(
    b"\x01\x00\x00\x06\x00\x00" + (mac).to_bytes(6, "big") + \
    b"\x01\x01\x00\x06\x00\x00" + (mac + 1).to_bytes(6, "big") + \
    b"\x01\x02\x00\x06\x00\x00" + (mac + 2).to_bytes(6, "big") + \
    b"\x01\x03\x00\x06\x00\x00" + (mac + 3).to_bytes(6, "big") + \
    b"\x02\x00\x00" + l(serial)   + serial + \
    b"\x04\x00\x00" + l(ssid)     + ssid + \
    b"\x05\x10\x00" + l(wlan_key) + wlan_key + \
    b"\x06\x01\x00" + l(username) + username + \
    b"\x07\x01\x00" + l(password) + password + \
    b"\x03\x00\x00" + l(mac_zte)  + mac_zte + \
    b"\x08\x06\x00" + l(version)  + version + \
    b"\x08\x07\x00" + l(zero)     + zero
).hexdigest()[:16])

Hi, I also have ZTE Speedport Entry 2i but my tagparam_m is different it has additional padding and does not contain Factory Username: here is how it looks like

This also did not work with my router. The firmware version is V1.0.0_OTET14MAPEA. I guess the tagparam_m file may be different as in the comment above.