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DeDRM_tools/DeDRM_plugin/ignoblekeyGenPassHash.py

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# ignoblekeyGenPassHash.py
# Copyright © 2009-2022 i♥cabbages, Apprentice Harper et al.
# Released under the terms of the GNU General Public Licence, version 3
# <http://www.gnu.org/licenses/>
# Windows users: Before running this program, you must first install Python.
# We recommend ActiveState Python 2.7.X for Windows (x86) from
# http://www.activestate.com/activepython/downloads.
# You must also install PyCrypto from
# http://www.voidspace.org.uk/python/modules.shtml#pycrypto
# (make certain to install the version for Python 2.7).
# Then save this script file as ignoblekeygen.pyw and double-click on it to run it.
#
# Mac OS X users: Save this script file as ignoblekeygen.pyw. You can run this
# program from the command line (python ignoblekeygen.pyw) or by double-clicking
# it when it has been associated with PythonLauncher.
# Revision history:
# 1 - Initial release
# 2 - Add OS X support by using OpenSSL when available (taken/modified from ineptepub v5)
# 2.1 - Allow Windows versions of libcrypto to be found
# 2.2 - On Windows try PyCrypto first and then OpenSSL next
# 2.3 - Modify interface to allow use of import
# 2.4 - Improvements to UI and now works in plugins
# 2.5 - Additional improvement for unicode and plugin support
# 2.6 - moved unicode_argv call inside main for Windows DeDRM compatibility
# 2.7 - Work if TkInter is missing
# 2.8 - Fix bug in stand-alone use (import tkFileDialog)
# 3.0 - Added Python 3 compatibility for calibre 5.0
# 3.1 - Remove OpenSSL support, only PyCryptodome is supported now
"""
Generate Barnes & Noble EPUB user key from name and credit card number.
"""
__license__ = 'GPL v3'
__version__ = "3.1"
import sys
import os
import hashlib
import base64
try:
from Cryptodome.Cipher import AES
except ImportError:
from Crypto.Cipher import AES
# Wrap a stream so that output gets flushed immediately
# and also make sure that any unicode strings get
# encoded using "replace" before writing them.
class SafeUnbuffered:
def __init__(self, stream):
self.stream = stream
self.encoding = stream.encoding
if self.encoding == None:
self.encoding = "utf-8"
def write(self, data):
if isinstance(data,str) or isinstance(data,unicode):
# str for Python3, unicode for Python2
data = data.encode(self.encoding,"replace")
try:
buffer = getattr(self.stream, 'buffer', self.stream)
# self.stream.buffer for Python3, self.stream for Python2
buffer.write(data)
buffer.flush()
except:
# We can do nothing if a write fails
raise
def __getattr__(self, attr):
return getattr(self.stream, attr)
try:
from calibre.constants import iswindows, isosx
except:
iswindows = sys.platform.startswith('win')
isosx = sys.platform.startswith('darwin')
def unicode_argv():
if iswindows:
# Uses shell32.GetCommandLineArgvW to get sys.argv as a list of Unicode
# strings.
# Versions 2.x of Python don't support Unicode in sys.argv on
# Windows, with the underlying Windows API instead replacing multi-byte
# characters with '?'. So use shell32.GetCommandLineArgvW to get sys.argv
# as a list of Unicode strings and encode them as utf-8
from ctypes import POINTER, byref, cdll, c_int, windll
from ctypes.wintypes import LPCWSTR, LPWSTR
GetCommandLineW = cdll.kernel32.GetCommandLineW
GetCommandLineW.argtypes = []
GetCommandLineW.restype = LPCWSTR
CommandLineToArgvW = windll.shell32.CommandLineToArgvW
CommandLineToArgvW.argtypes = [LPCWSTR, POINTER(c_int)]
CommandLineToArgvW.restype = POINTER(LPWSTR)
cmd = GetCommandLineW()
argc = c_int(0)
argv = CommandLineToArgvW(cmd, byref(argc))
if argc.value > 0:
# Remove Python executable and commands if present
start = argc.value - len(sys.argv)
return [argv[i] for i in
range(start, argc.value)]
# if we don't have any arguments at all, just pass back script name
# this should never happen
return ["ignoblekeygen.py"]
else:
argvencoding = sys.stdin.encoding or "utf-8"
return [arg if (isinstance(arg, str) or isinstance(arg,unicode)) else str(arg, argvencoding) for arg in sys.argv]
class IGNOBLEError(Exception):
pass
def normalize_name(name):
return ''.join(x for x in name.lower() if x != ' ')
def generate_key(name, ccn):
# remove spaces and case from name and CC numbers.
name = normalize_name(name)
ccn = normalize_name(ccn)
if type(name)==str:
name = name.encode('utf-8')
if type(ccn)==str:
ccn = ccn.encode('utf-8')
name = name + b'\x00'
ccn = ccn + b'\x00'
name_sha = hashlib.sha1(name).digest()[:16]
ccn_sha = hashlib.sha1(ccn).digest()[:16]
both_sha = hashlib.sha1(name + ccn).digest()
crypt = AES.new(ccn_sha, AES.MODE_CBC, name_sha).encrypt(both_sha + (b'\x0c' * 0x0c))
userkey = hashlib.sha1(crypt).digest()
return base64.b64encode(userkey)
def cli_main():
sys.stdout=SafeUnbuffered(sys.stdout)
sys.stderr=SafeUnbuffered(sys.stderr)
argv=unicode_argv()
progname = os.path.basename(argv[0])
if len(argv) != 4:
print("usage: {0} <Name> <CC#> <keyfileout.b64>".format(progname))
return 1
name, ccn, keypath = argv[1:]
userkey = generate_key(name, ccn)
open(keypath,'wb').write(userkey)
return 0
def gui_main():
try:
import tkinter
import tkinter.constants
import tkinter.messagebox
import tkinter.filedialog
import traceback
except:
return cli_main()
class DecryptionDialog(tkinter.Frame):
def __init__(self, root):
tkinter.Frame.__init__(self, root, border=5)
self.status = tkinter.Label(self, text="Enter parameters")
self.status.pack(fill=tkinter.constants.X, expand=1)
body = tkinter.Frame(self)
body.pack(fill=tkinter.constants.X, expand=1)
sticky = tkinter.constants.E + tkinter.constants.W
body.grid_columnconfigure(1, weight=2)
tkinter.Label(body, text="Account Name").grid(row=0)
self.name = tkinter.Entry(body, width=40)
self.name.grid(row=0, column=1, sticky=sticky)
tkinter.Label(body, text="CC#").grid(row=1)
self.ccn = tkinter.Entry(body, width=40)
self.ccn.grid(row=1, column=1, sticky=sticky)
tkinter.Label(body, text="Output file").grid(row=2)
self.keypath = tkinter.Entry(body, width=40)
self.keypath.grid(row=2, column=1, sticky=sticky)
self.keypath.insert(2, "bnepubkey.b64")
button = tkinter.Button(body, text="...", command=self.get_keypath)
button.grid(row=2, column=2)
buttons = tkinter.Frame(self)
buttons.pack()
botton = tkinter.Button(
buttons, text="Generate", width=10, command=self.generate)
botton.pack(side=tkinter.constants.LEFT)
tkinter.Frame(buttons, width=10).pack(side=tkinter.constants.LEFT)
button = tkinter.Button(
buttons, text="Quit", width=10, command=self.quit)
button.pack(side=tkinter.constants.RIGHT)
def get_keypath(self):
keypath = tkinter.filedialog.asksaveasfilename(
parent=None, title="Select B&N ePub key file to produce",
defaultextension=".b64",
filetypes=[('base64-encoded files', '.b64'),
('All Files', '.*')])
if keypath:
keypath = os.path.normpath(keypath)
self.keypath.delete(0, tkinter.constants.END)
self.keypath.insert(0, keypath)
return
def generate(self):
name = self.name.get()
ccn = self.ccn.get()
keypath = self.keypath.get()
if not name:
self.status['text'] = "Name not specified"
return
if not ccn:
self.status['text'] = "Credit card number not specified"
return
if not keypath:
self.status['text'] = "Output keyfile path not specified"
return
self.status['text'] = "Generating..."
try:
userkey = generate_key(name, ccn)
except Exception as e:
self.status['text'] = "Error: (0}".format(e.args[0])
return
open(keypath,'wb').write(userkey)
self.status['text'] = "Keyfile successfully generated"
root = tkinter.Tk()
root.title("Barnes & Noble ePub Keyfile Generator v.{0}".format(__version__))
root.resizable(True, False)
root.minsize(300, 0)
DecryptionDialog(root).pack(fill=tkinter.constants.X, expand=1)
root.mainloop()
return 0
if __name__ == '__main__':
if len(sys.argv) > 1:
sys.exit(cli_main())
sys.exit(gui_main())
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