skoobasteeve/DeDRM_tools
1
0
Fork 0
mirror of https://github.com/noDRM/DeDRM_tools.git synced 2026-03-20 04:58:56 +00:00
Code Issues Projects Releases Wiki Activity

Remove OpenSSL support; only support PyCryptodome

Browse Source 
This allows us to clean up the code a lot.

On Windows, it isn't installed by default and
most of the time not be found at all.

On M1 Macs, the kernel will kill the process instead.

Closes #33.
This commit is contained in:
a980e066a01
2022-02-22 23:16:03 +00:00
committed by noDRM
parent f4634b5eab
commit a1dd63ae5f
16 changed files with 202 additions and 2211 deletions
Download Patch File Download Diff File Expand all files Collapse all files

109
DeDRM_plugin/adobekey.py
View File

@@ -1,8 +1,8 @@
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# adobekey.pyw, version 7.1
# Copyright © 2009-2021 i♥cabbages, Apprentice Harper et al.
# adobekey.pyw, version 7.4
# 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/>
@@ -32,6 +32,7 @@
# 7.1 - Fix "failed to decrypt user key key" error (read username from registry)
# 7.2 - Fix decryption error on Python2 if there's unicode in the username
# 7.3 - Fix OpenSSL in Wine
# 7.4 - Remove OpenSSL support to only support PyCryptodome
"""
Retrieve Adobe ADEPT user key.
@@ -125,91 +126,12 @@ if iswindows:
except ImportError:
import _winreg as winreg
def get_fake_windows_libcrypto_path():
# There seems to be a bug in Wine where a `find_library('libcrypto-1_1')`
# will not return the path to the libcrypto-1_1.dll file.
# So if we're on Windows, and we didn't find the libcrypto the normal way,
# lets try a hack-y workaround. It's already over anyways at this
# point, can't really make it worse.
import sys, os
for p in sys.path:
if os.path.isfile(os.path.join(p, "libcrypto-1_1.dll")):
return os.path.join(p, "libcrypto-1_1.dll")
if os.path.isfile(os.path.join(p, "libeay32.dll")):
return os.path.join(p, "libeay32.dll")
return None
def _load_crypto_libcrypto():
from ctypes.util import find_library
libcrypto = find_library('libcrypto-1_1')
if libcrypto is None:
libcrypto = find_library('libeay32')
if libcrypto is None:
libcrypto = get_fake_windows_libcrypto_path()
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)
def F(restype, name, argtypes):
func = getattr(libcrypto, name)
func.restype = restype
func.argtypes = argtypes
return func
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))
iv = (b"\x00" * self._blocksize)
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():
try:
from Crypto.Cipher import AES as _AES
except (ImportError, ModuleNotFoundError):
from Cryptodome.Cipher import AES as _AES
class AES(object):
def __init__(self, key):
self._aes = _AES.new(key, _AES.MODE_CBC, b'\x00'*16)
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, ModuleNotFoundError, ADEPTError):
pass
return AES
AES = _load_crypto()
try:
from Cryptodome.Cipher import AES
from Cryptodome.Util.Padding import unpad
except ImportError:
from Crypto.Cipher import AES
from Crypto.Util.Padding import unpad
DEVICE_KEY_PATH = r'Software\Adobe\Adept\Device'
PRIVATE_LICENCE_KEY_PATH = r'Software\Adobe\Adept\Activation'
@@ -402,8 +324,6 @@ if iswindows:
CryptUnprotectData = CryptUnprotectData()
def adeptkeys():
if AES is None:
raise ADEPTError("PyCrypto or OpenSSL must be installed")
root = GetSystemDirectory().split('\\')[0] + '\\'
serial = GetVolumeSerialNumber(root)
vendor = cpuid0()
@@ -416,7 +336,7 @@ if iswindows:
try:
regkey = winreg.OpenKey(cuser, DEVICE_KEY_PATH)
device = winreg.QueryValueEx(regkey, 'key')[0]
except WindowsError, FileNotFoundError:
except (WindowsError, FileNotFoundError):
raise ADEPTError("Adobe Digital Editions not activated")
keykey = CryptUnprotectData(device, entropy)
userkey = None
@@ -424,7 +344,7 @@ if iswindows:
names = []
try:
plkroot = winreg.OpenKey(cuser, PRIVATE_LICENCE_KEY_PATH)
except WindowsError, FileNotFoundError:
except (WindowsError, FileNotFoundError):
raise ADEPTError("Could not locate ADE activation")
i = -1
@@ -443,7 +363,7 @@ if iswindows:
for j in range(0, 16):
try:
plkkey = winreg.OpenKey(plkparent, "%04d" % (j,))
except WindowsError, FileNotFoundError:
except (WindowsError, FileNotFoundError):
break
ktype = winreg.QueryValueEx(plkkey, None)[0]
if ktype == 'user':
@@ -461,10 +381,7 @@ if iswindows:
pass
if ktype == 'privateLicenseKey':
userkey = winreg.QueryValueEx(plkkey, 'value')[0]
userkey = b64decode(userkey)
aes = AES(keykey)
userkey = aes.decrypt(userkey)
userkey = userkey[26:-ord(userkey[-1:])]
userkey = unpad(AES.new(keykey, AES.MODE_CBC, b'\x00'*16).decrypt(b64decode(userkey)), 16)[26:]
# print ("found " + uuid_name + " key: " + str(userkey))
keys.append(userkey)