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Python 3 fixes for Android kindle key retrieval

This commit is contained in:
Apprentice Harper 2020-11-27 15:46:06 +00:00
parent e0c7d7d382
commit 5ec9c98a0b
1 changed files with 9 additions and 11 deletions
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20
DeDRM_plugin/androidkindlekey.py
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@ -2,7 +2,7 @@
# -*- coding: utf-8 -*- # -*- coding: utf-8 -*-
# androidkindlekey.py # androidkindlekey.py
# Copyright © 2010-20 by Thom, Apprentice et al. # Copyright © 2010-20 by Thom, Apprentice Harper et al.
# Revision history: # Revision history:
# 1.0 - AmazonSecureStorage.xml decryption to serial number # 1.0 - AmazonSecureStorage.xml decryption to serial number
@ -30,10 +30,7 @@ import tempfile
import zlib import zlib
import tarfile import tarfile
from hashlib import md5 from hashlib import md5
try: from io import BytesIO
from cStringIO import StringIO
except ImportError:
from io import BytesIO as StringIO
from binascii import a2b_hex, b2a_hex from binascii import a2b_hex, b2a_hex
# Routines common to Mac and PC # Routines common to Mac and PC
@ -116,7 +113,7 @@ class AndroidObfuscation(object):
cipher = self._get_cipher() cipher = self._get_cipher()
padding = len(self.key) - len(plaintext) % len(self.key) padding = len(self.key) - len(plaintext) % len(self.key)
plaintext += chr(padding) * padding plaintext += chr(padding) * padding
return b2a_hex(cipher.encrypt(plaintext)) return b2a_hex(cipher.encrypt(plaintext.encode('utf-8')))
def decrypt(self, ciphertext): def decrypt(self, ciphertext):
cipher = self._get_cipher() cipher = self._get_cipher()
@ -182,7 +179,7 @@ def get_serials1(path=STORAGE1):
obfuscation = AndroidObfuscation() obfuscation = AndroidObfuscation()
def get_value(key): def get_value(key):
encrypted_key = obfuscation.encrypt(a2b_hex(key)) encrypted_key = obfuscation.encrypt(key)
encrypted_value = storage.get(encrypted_key) encrypted_value = storage.get(encrypted_key)
if encrypted_value: if encrypted_value:
return obfuscation.decrypt(encrypted_value) return obfuscation.decrypt(encrypted_value)
@ -198,6 +195,7 @@ def get_serials1(path=STORAGE1):
try: try:
tokens = set(get_value('kindle.account.tokens').split(',')) tokens = set(get_value('kindle.account.tokens').split(','))
except: except:
sys.stderr.write('cannot get kindle account tokens\n')
return [] return []
serials = [] serials = []
@ -251,8 +249,8 @@ def get_serials2(path=STORAGE2):
serials = [] serials = []
for x in dsns: for x in dsns:
for y in tokens:
serials.append(x) serials.append(x)
for y in tokens:
serials.append(y) serials.append(y)
serials.append(x+y) serials.append(x+y)
return serials return serials
@ -277,7 +275,7 @@ def get_serials(path=STORAGE):
read = open(path, 'rb') read = open(path, 'rb')
head = read.read(24) head = read.read(24)
if head[:14] == b'ANDROID BACKUP': if head[:14] == b'ANDROID BACKUP':
output = StringIO(zlib.decompress(read.read())) output = BytesIO(zlib.decompress(read.read()))
except Exception: except Exception:
pass pass
finally: finally:
@ -314,7 +312,7 @@ def getkey(outfile, inpath):
if len(keys) > 0: if len(keys) > 0:
with open(outfile, 'w') as keyfileout: with open(outfile, 'w') as keyfileout:
for key in keys: for key in keys:
keyfileout.write(b2a_hex(key)) keyfileout.write(key)
keyfileout.write("\n") keyfileout.write("\n")
return True return True
return False return False
@ -391,7 +389,7 @@ def gui_main():
import tkinter.filedialog import tkinter.filedialog
except: except:
print("tkinter not installed") print("tkinter not installed")
return cli_main() return 0
class DecryptionDialog(tkinter.Frame): class DecryptionDialog(tkinter.Frame):
def __init__(self, root): def __init__(self, root):