#!/usr/bin/python3
# Decrypts localParams file from Steganos Backup 2012 profiles
# This file can be found in:
# %APPDATA%\Local\Steganos Backup\plans\<profile_id>\control

import sys
from Cryptodome.Cipher import AES
from Cryptodome.Util.Padding import unpad

key = b"\xd7\x34\x73\x4e\xd8\x70\x2c\x2b\x34\xfa\x10\xad\x40\x17\x43\x25\x77\xfd\x02\xc8\xec\x6f\x1c\xb0\xae\x95\xed\xb2\xc5\xad\x47\x69"

contents = open(sys.argv[1], "rb").read()
iv = contents[:16]
data = contents[16:]

aes = AES.new(key, AES.MODE_CBC, iv)
print("Password: '%s'" % unpad(aes.decrypt(data), 16).decode("utf-8"))