DeDRM_tools/DeDRM_plugin/adobekey.py

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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
# adobekey.pyw, version 6.0
# Copyright © 2009-2020 i♥cabbages, Apprentice Harper et al.
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# Released under the terms of the GNU General Public Licence, version 3
# <http://www.gnu.org/licenses/>
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# Revision history:
# 1 - Initial release, for Adobe Digital Editions 1.7
# 2 - Better algorithm for finding pLK; improved error handling
# 3 - Rename to INEPT
# 4 - Series of changes by joblack (and others?) --
# 4.1 - quick beta fix for ADE 1.7.2 (anon)
# 4.2 - added old 1.7.1 processing
# 4.3 - better key search
# 4.4 - Make it working on 64-bit Python
# 5 - Clean up and improve 4.x changes;
# Clean up and merge OS X support by unknown
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# 5.1 - add support for using OpenSSL on Windows in place of PyCrypto
# 5.2 - added support for output of key to a particular file
# 5.3 - On Windows try PyCrypto first, OpenSSL next
# 5.4 - Modify interface to allow use of import
# 5.5 - Fix for potential problem with PyCrypto
# 5.6 - Revised to allow use in Plugins to eliminate need for duplicate code
# 5.7 - Unicode support added, renamed adobekey from ineptkey
# 5.8 - Added getkey interface for Windows DeDRM application
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# 5.9 - moved unicode_argv call inside main for Windows DeDRM compatibility
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# 6.0 - Work if TkInter is missing
# 7.0 - Python 3 for calibre 5
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"""
Retrieve Adobe ADEPT user key.
"""
__license__ = 'GPL v3'
__version__ = '7.0'
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import sys, os, struct, getopt
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from base64 import b64decode
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# 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):
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if isinstance(data, str):
data = data.encode(self.encoding,"replace")
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self.stream.buffer.write(data)
self.stream.buffer.flush()
def __getattr__(self, attr):
return getattr(self.stream, attr)
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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
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range(start, argc.value)]
# if we don't have any arguments at all, just pass back script name
# this should never happen
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return ["adobekey.py"]
else:
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argvencoding = sys.stdin.encoding or "utf-8"
return [arg if isinstance(arg, str) else str(arg, argvencoding) for arg in sys.argv]
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class ADEPTError(Exception):
pass
if iswindows:
from ctypes import windll, c_char_p, c_wchar_p, c_uint, POINTER, byref, \
create_unicode_buffer, create_string_buffer, CFUNCTYPE, addressof, \
string_at, Structure, c_void_p, cast, c_size_t, memmove, CDLL, c_int, \
c_long, c_ulong
from ctypes.wintypes import LPVOID, DWORD, BOOL
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import winreg
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def _load_crypto_libcrypto():
from ctypes.util import find_library
libcrypto = find_library('libeay32')
if libcrypto is None:
raise ADEPTError('libcrypto not found')
libcrypto = CDLL(libcrypto)
AES_MAXNR = 14
c_char_pp = POINTER(c_char_p)
c_int_p = POINTER(c_int)
class AES_KEY(Structure):
_fields_ = [('rd_key', c_long * (4 * (AES_MAXNR + 1))),
('rounds', c_int)]
AES_KEY_p = POINTER(AES_KEY)
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def F(restype, name, argtypes):
func = getattr(libcrypto, name)
func.restype = restype
func.argtypes = argtypes
return func
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AES_set_decrypt_key = F(c_int, 'AES_set_decrypt_key',
[c_char_p, c_int, AES_KEY_p])
AES_cbc_encrypt = F(None, 'AES_cbc_encrypt',
[c_char_p, c_char_p, c_ulong, AES_KEY_p, c_char_p,
c_int])
class AES(object):
def __init__(self, userkey):
self._blocksize = len(userkey)
if (self._blocksize != 16) and (self._blocksize != 24) and (self._blocksize != 32) :
raise ADEPTError('AES improper key used')
key = self._key = AES_KEY()
rv = AES_set_decrypt_key(userkey, len(userkey) * 8, key)
if rv < 0:
raise ADEPTError('Failed to initialize AES key')
def decrypt(self, data):
out = create_string_buffer(len(data))
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iv = (b"\x00" * self._blocksize)
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rv = AES_cbc_encrypt(data, out, len(data), self._key, iv, 0)
if rv == 0:
raise ADEPTError('AES decryption failed')
return out.raw
return AES
def _load_crypto_pycrypto():
from Crypto.Cipher import AES as _AES
class AES(object):
def __init__(self, key):
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self._aes = _AES.new(key, _AES.MODE_CBC, b'\x00'*16)
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def decrypt(self, data):
return self._aes.decrypt(data)
return AES
def _load_crypto():
AES = None
for loader in (_load_crypto_pycrypto, _load_crypto_libcrypto):
try:
AES = loader()
break
except (ImportError, ADEPTError):
pass
return AES
AES = _load_crypto()
DEVICE_KEY_PATH = r'Software\Adobe\Adept\Device'
PRIVATE_LICENCE_KEY_PATH = r'Software\Adobe\Adept\Activation'
MAX_PATH = 255
kernel32 = windll.kernel32
advapi32 = windll.advapi32
crypt32 = windll.crypt32
def GetSystemDirectory():
GetSystemDirectoryW = kernel32.GetSystemDirectoryW
GetSystemDirectoryW.argtypes = [c_wchar_p, c_uint]
GetSystemDirectoryW.restype = c_uint
def GetSystemDirectory():
buffer = create_unicode_buffer(MAX_PATH + 1)
GetSystemDirectoryW(buffer, len(buffer))
return buffer.value
return GetSystemDirectory
GetSystemDirectory = GetSystemDirectory()
def GetVolumeSerialNumber():
GetVolumeInformationW = kernel32.GetVolumeInformationW
GetVolumeInformationW.argtypes = [c_wchar_p, c_wchar_p, c_uint,
POINTER(c_uint), POINTER(c_uint),
POINTER(c_uint), c_wchar_p, c_uint]
GetVolumeInformationW.restype = c_uint
def GetVolumeSerialNumber(path):
vsn = c_uint(0)
GetVolumeInformationW(
path, None, 0, byref(vsn), None, None, None, 0)
return vsn.value
return GetVolumeSerialNumber
GetVolumeSerialNumber = GetVolumeSerialNumber()
def GetUserName():
GetUserNameW = advapi32.GetUserNameW
GetUserNameW.argtypes = [c_wchar_p, POINTER(c_uint)]
GetUserNameW.restype = c_uint
def GetUserName():
buffer = create_unicode_buffer(32)
size = c_uint(len(buffer))
while not GetUserNameW(buffer, byref(size)):
buffer = create_unicode_buffer(len(buffer) * 2)
size.value = len(buffer)
return buffer.value.encode('utf-16-le')[::2]
return GetUserName
GetUserName = GetUserName()
PAGE_EXECUTE_READWRITE = 0x40
MEM_COMMIT = 0x1000
MEM_RESERVE = 0x2000
def VirtualAlloc():
_VirtualAlloc = kernel32.VirtualAlloc
_VirtualAlloc.argtypes = [LPVOID, c_size_t, DWORD, DWORD]
_VirtualAlloc.restype = LPVOID
def VirtualAlloc(addr, size, alloctype=(MEM_COMMIT | MEM_RESERVE),
protect=PAGE_EXECUTE_READWRITE):
return _VirtualAlloc(addr, size, alloctype, protect)
return VirtualAlloc
VirtualAlloc = VirtualAlloc()
MEM_RELEASE = 0x8000
def VirtualFree():
_VirtualFree = kernel32.VirtualFree
_VirtualFree.argtypes = [LPVOID, c_size_t, DWORD]
_VirtualFree.restype = BOOL
def VirtualFree(addr, size=0, freetype=MEM_RELEASE):
return _VirtualFree(addr, size, freetype)
return VirtualFree
VirtualFree = VirtualFree()
class NativeFunction(object):
def __init__(self, restype, argtypes, insns):
self._buf = buf = VirtualAlloc(None, len(insns))
memmove(buf, insns, len(insns))
ftype = CFUNCTYPE(restype, *argtypes)
self._native = ftype(buf)
def __call__(self, *args):
return self._native(*args)
def __del__(self):
if self._buf is not None:
VirtualFree(self._buf)
self._buf = None
if struct.calcsize("P") == 4:
CPUID0_INSNS = (
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b"\x53" # push %ebx
b"\x31\xc0" # xor %eax,%eax
b"\x0f\xa2" # cpuid
b"\x8b\x44\x24\x08" # mov 0x8(%esp),%eax
b"\x89\x18" # mov %ebx,0x0(%eax)
b"\x89\x50\x04" # mov %edx,0x4(%eax)
b"\x89\x48\x08" # mov %ecx,0x8(%eax)
b"\x5b" # pop %ebx
b"\xc3" # ret
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)
CPUID1_INSNS = (
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b"\x53" # push %ebx
b"\x31\xc0" # xor %eax,%eax
b"\x40" # inc %eax
b"\x0f\xa2" # cpuid
b"\x5b" # pop %ebx
b"\xc3" # ret
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)
else:
CPUID0_INSNS = (
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b"\x49\x89\xd8" # mov %rbx,%r8
b"\x49\x89\xc9" # mov %rcx,%r9
b"\x48\x31\xc0" # xor %rax,%rax
b"\x0f\xa2" # cpuid
b"\x4c\x89\xc8" # mov %r9,%rax
b"\x89\x18" # mov %ebx,0x0(%rax)
b"\x89\x50\x04" # mov %edx,0x4(%rax)
b"\x89\x48\x08" # mov %ecx,0x8(%rax)
b"\x4c\x89\xc3" # mov %r8,%rbx
b"\xc3" # retq
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)
CPUID1_INSNS = (
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b"\x53" # push %rbx
b"\x48\x31\xc0" # xor %rax,%rax
b"\x48\xff\xc0" # inc %rax
b"\x0f\xa2" # cpuid
b"\x5b" # pop %rbx
b"\xc3" # retq
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)
def cpuid0():
_cpuid0 = NativeFunction(None, [c_char_p], CPUID0_INSNS)
buf = create_string_buffer(12)
def cpuid0():
_cpuid0(buf)
return buf.raw
return cpuid0
cpuid0 = cpuid0()
cpuid1 = NativeFunction(c_uint, [], CPUID1_INSNS)
class DataBlob(Structure):
_fields_ = [('cbData', c_uint),
('pbData', c_void_p)]
DataBlob_p = POINTER(DataBlob)
def CryptUnprotectData():
_CryptUnprotectData = crypt32.CryptUnprotectData
_CryptUnprotectData.argtypes = [DataBlob_p, c_wchar_p, DataBlob_p,
c_void_p, c_void_p, c_uint, DataBlob_p]
_CryptUnprotectData.restype = c_uint
def CryptUnprotectData(indata, entropy):
indatab = create_string_buffer(indata)
indata = DataBlob(len(indata), cast(indatab, c_void_p))
entropyb = create_string_buffer(entropy)
entropy = DataBlob(len(entropy), cast(entropyb, c_void_p))
outdata = DataBlob()
if not _CryptUnprotectData(byref(indata), None, byref(entropy),
None, None, 0, byref(outdata)):
raise ADEPTError("Failed to decrypt user key key (sic)")
return string_at(outdata.pbData, outdata.cbData)
return CryptUnprotectData
CryptUnprotectData = CryptUnprotectData()
def adeptkeys():
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if AES is None:
raise ADEPTError("PyCrypto or OpenSSL must be installed")
root = GetSystemDirectory().split('\\')[0] + '\\'
serial = GetVolumeSerialNumber(root)
vendor = cpuid0()
signature = struct.pack('>I', cpuid1())[1:]
user = GetUserName()
entropy = struct.pack('>I12s3s13s', serial, vendor, signature, user)
cuser = winreg.HKEY_CURRENT_USER
try:
regkey = winreg.OpenKey(cuser, DEVICE_KEY_PATH)
device = winreg.QueryValueEx(regkey, 'key')[0]
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except WindowsError:
raise ADEPTError("Adobe Digital Editions not activated")
keykey = CryptUnprotectData(device, entropy)
userkey = None
keys = []
try:
plkroot = winreg.OpenKey(cuser, PRIVATE_LICENCE_KEY_PATH)
except WindowsError:
raise ADEPTError("Could not locate ADE activation")
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for i in range(0, 16):
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try:
plkparent = winreg.OpenKey(plkroot, "%04d" % (i,))
except WindowsError:
break
ktype = winreg.QueryValueEx(plkparent, None)[0]
if ktype != 'credentials':
continue
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for j in range(0, 16):
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try:
plkkey = winreg.OpenKey(plkparent, "%04d" % (j,))
except WindowsError:
break
ktype = winreg.QueryValueEx(plkkey, None)[0]
if ktype != 'privateLicenseKey':
continue
userkey = winreg.QueryValueEx(plkkey, 'value')[0]
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userkey = b64decode(userkey)
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aes = AES(keykey)
userkey = aes.decrypt(userkey)
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userkey = userkey[26:-ord(userkey[-1:])]
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#print "found key:",userkey.encode('hex')
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keys.append(userkey)
if len(keys) == 0:
raise ADEPTError('Could not locate privateLicenseKey')
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print("Found {0:d} keys".format(len(keys)))
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return keys
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elif isosx:
import xml.etree.ElementTree as etree
import subprocess
NSMAP = {'adept': 'http://ns.adobe.com/adept',
'enc': 'http://www.w3.org/2001/04/xmlenc#'}
def findActivationDat():
import warnings
warnings.filterwarnings('ignore', category=FutureWarning)
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home = os.getenv('HOME')
cmdline = 'find "' + home + '/Library/Application Support/Adobe/Digital Editions" -name "activation.dat"'
cmdline = cmdline.encode(sys.getfilesystemencoding())
p2 = subprocess.Popen(cmdline, shell=True, stdin=None, stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=False)
out1, out2 = p2.communicate()
reslst = out1.split(b'\n')
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cnt = len(reslst)
ActDatPath = b"activation.dat"
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for j in range(cnt):
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resline = reslst[j]
pp = resline.find(b'activation.dat')
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if pp >= 0:
ActDatPath = resline
break
if os.path.exists(ActDatPath):
return ActDatPath
return None
def adeptkeys():
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actpath = findActivationDat()
if actpath is None:
raise ADEPTError("Could not find ADE activation.dat file.")
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tree = etree.parse(actpath)
adept = lambda tag: '{%s}%s' % (NSMAP['adept'], tag)
expr = '//%s/%s' % (adept('credentials'), adept('privateLicenseKey'))
userkey = tree.findtext(expr)
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userkey = b64decode(userkey)
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userkey = userkey[26:]
return [userkey]
else:
def adeptkeys():
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raise ADEPTError("This script only supports Windows and Mac OS X.")
return []
# interface for Python DeDRM
def getkey(outpath):
keys = adeptkeys()
if len(keys) > 0:
if not os.path.isdir(outpath):
outfile = outpath
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with open(outfile, 'wb') as keyfileout:
keyfileout.write(keys[0])
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print("Saved a key to {0}".format(outfile))
else:
keycount = 0
for key in keys:
while True:
keycount += 1
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outfile = os.path.join(outpath,"adobekey_{0:d}.der".format(keycount))
if not os.path.exists(outfile):
break
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with open(outfile, 'wb') as keyfileout:
keyfileout.write(key)
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print("Saved a key to {0}".format(outfile))
return True
return False
def usage(progname):
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print("Finds, decrypts and saves the default Adobe Adept encryption key(s).")
print("Keys are saved to the current directory, or a specified output directory.")
print("If a file name is passed instead of a directory, only the first key is saved, in that file.")
print("Usage:")
print(" {0:s} [-h] [<outpath>]".format(progname))
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def cli_main():
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sys.stdout=SafeUnbuffered(sys.stdout)
sys.stderr=SafeUnbuffered(sys.stderr)
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argv=unicode_argv()
progname = os.path.basename(argv[0])
print("{0} v{1}\nCopyright © 2009-2020 i♥cabbages, Apprentice Harper et al.".format(progname,__version__))
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try:
opts, args = getopt.getopt(argv[1:], "h")
except getopt.GetoptError as err:
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print("Error in options or arguments: {0}".format(err.args[0]))
usage(progname)
sys.exit(2)
for o, a in opts:
if o == "-h":
usage(progname)
sys.exit(0)
if len(args) > 1:
usage(progname)
sys.exit(2)
if len(args) == 1:
# save to the specified file or directory
outpath = args[0]
if not os.path.isabs(outpath):
outpath = os.path.abspath(outpath)
else:
# save to the same directory as the script
outpath = os.path.dirname(argv[0])
# make sure the outpath is the
outpath = os.path.realpath(os.path.normpath(outpath))
keys = adeptkeys()
if len(keys) > 0:
if not os.path.isdir(outpath):
outfile = outpath
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with open(outfile, 'wb') as keyfileout:
keyfileout.write(keys[0])
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print("Saved a key to {0}".format(outfile))
else:
keycount = 0
for key in keys:
while True:
keycount += 1
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outfile = os.path.join(outpath,"adobekey_{0:d}.der".format(keycount))
if not os.path.exists(outfile):
break
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with open(outfile, 'wb') as keyfileout:
keyfileout.write(key)
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print("Saved a key to {0}".format(outfile))
else:
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print("Could not retrieve Adobe Adept key.")
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return 0
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def gui_main():
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try:
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import tkinter
import tkinter.constants
import tkinter.messagebox
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import traceback
except:
return cli_main()
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class ExceptionDialog(tkinter.Frame):
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def __init__(self, root, text):
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tkinter.Frame.__init__(self, root, border=5)
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label = tkinter.Label(self, text="Unexpected error:",
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anchor=tkinter.constants.W, justify=tkinter.constants.LEFT)
label.pack(fill=tkinter.constants.X, expand=0)
self.text = tkinter.Text(self)
self.text.pack(fill=tkinter.constants.BOTH, expand=1)
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self.text.insert(tkinter.constants.END, text)
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argv=unicode_argv()
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root = tkinter.Tk()
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root.withdraw()
progpath, progname = os.path.split(argv[0])
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success = False
try:
keys = adeptkeys()
keycount = 0
for key in keys:
while True:
keycount += 1
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outfile = os.path.join(progpath,"adobekey_{0:d}.der".format(keycount))
if not os.path.exists(outfile):
break
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with open(outfile, 'wb') as keyfileout:
keyfileout.write(key)
success = True
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tkinter.messagebox.showinfo(progname, "Key successfully retrieved to {0}".format(outfile))
except ADEPTError as e:
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tkinter.messagebox.showerror(progname, "Error: {0}".format(str(e)))
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except Exception:
root.wm_state('normal')
root.title(progname)
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text = traceback.format_exc()
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ExceptionDialog(root, text).pack(fill=tkinter.constants.BOTH, expand=1)
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root.mainloop()
if not success:
return 1
return 0
if __name__ == '__main__':
if len(sys.argv) > 1:
sys.exit(cli_main())
sys.exit(gui_main())