309 lines
10 KiB
Python
309 lines
10 KiB
Python
#!/usr/bin/env python
|
|
# K4PC Windows specific routines
|
|
|
|
from __future__ import with_statement
|
|
|
|
import sys, os
|
|
from struct import pack, unpack, unpack_from
|
|
|
|
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
|
|
|
|
import _winreg as winreg
|
|
|
|
MAX_PATH = 255
|
|
|
|
kernel32 = windll.kernel32
|
|
advapi32 = windll.advapi32
|
|
crypt32 = windll.crypt32
|
|
|
|
import traceback
|
|
|
|
# crypto digestroutines
|
|
import hashlib
|
|
|
|
def MD5(message):
|
|
ctx = hashlib.md5()
|
|
ctx.update(message)
|
|
return ctx.digest()
|
|
|
|
def SHA1(message):
|
|
ctx = hashlib.sha1()
|
|
ctx.update(message)
|
|
return ctx.digest()
|
|
|
|
|
|
# simple primes table (<= n) calculator
|
|
def primes(n):
|
|
if n==2: return [2]
|
|
elif n<2: return []
|
|
s=range(3,n+1,2)
|
|
mroot = n ** 0.5
|
|
half=(n+1)/2-1
|
|
i=0
|
|
m=3
|
|
while m <= mroot:
|
|
if s[i]:
|
|
j=(m*m-3)/2
|
|
s[j]=0
|
|
while j<half:
|
|
s[j]=0
|
|
j+=m
|
|
i=i+1
|
|
m=2*i+3
|
|
return [2]+[x for x in s if x]
|
|
|
|
|
|
# Various character maps used to decrypt kindle info values.
|
|
# Probably supposed to act as obfuscation
|
|
charMap2 = "AaZzB0bYyCc1XxDdW2wEeVv3FfUuG4g-TtHh5SsIiR6rJjQq7KkPpL8lOoMm9Nn_"
|
|
charMap5 = "AzB0bYyCeVvaZ3FfUuG4g-TtHh5SsIiR6rJjQq7KkPpL8lOoMm9Nn_c1XxDdW2wE"
|
|
|
|
class DrmException(Exception):
|
|
pass
|
|
|
|
# Encode the bytes in data with the characters in map
|
|
def encode(data, map):
|
|
result = ""
|
|
for char in data:
|
|
value = ord(char)
|
|
Q = (value ^ 0x80) // len(map)
|
|
R = value % len(map)
|
|
result += map[Q]
|
|
result += map[R]
|
|
return result
|
|
|
|
# Hash the bytes in data and then encode the digest with the characters in map
|
|
def encodeHash(data,map):
|
|
return encode(MD5(data),map)
|
|
|
|
# Decode the string in data with the characters in map. Returns the decoded bytes
|
|
def decode(data,map):
|
|
result = ""
|
|
for i in range (0,len(data)-1,2):
|
|
high = map.find(data[i])
|
|
low = map.find(data[i+1])
|
|
if (high == -1) or (low == -1) :
|
|
break
|
|
value = (((high * len(map)) ^ 0x80) & 0xFF) + low
|
|
result += pack("B",value)
|
|
return result
|
|
|
|
|
|
# interface with Windows OS Routines
|
|
class DataBlob(Structure):
|
|
_fields_ = [('cbData', c_uint),
|
|
('pbData', c_void_p)]
|
|
DataBlob_p = POINTER(DataBlob)
|
|
|
|
|
|
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 = GetSystemDirectory().split('\\')[0] + '\\'):
|
|
vsn = c_uint(0)
|
|
GetVolumeInformationW(path, None, 0, byref(vsn), None, None, None, 0)
|
|
return str(vsn.value)
|
|
return GetVolumeSerialNumber
|
|
GetVolumeSerialNumber = GetVolumeSerialNumber()
|
|
|
|
def GetIDString():
|
|
return GetVolumeSerialNumber()
|
|
|
|
def getLastError():
|
|
GetLastError = kernel32.GetLastError
|
|
GetLastError.argtypes = None
|
|
GetLastError.restype = c_uint
|
|
def getLastError():
|
|
return GetLastError()
|
|
return getLastError
|
|
getLastError = getLastError()
|
|
|
|
def GetUserName():
|
|
GetUserNameW = advapi32.GetUserNameW
|
|
GetUserNameW.argtypes = [c_wchar_p, POINTER(c_uint)]
|
|
GetUserNameW.restype = c_uint
|
|
def GetUserName():
|
|
buffer = create_unicode_buffer(2)
|
|
size = c_uint(len(buffer))
|
|
while not GetUserNameW(buffer, byref(size)):
|
|
errcd = getLastError()
|
|
if errcd == 234:
|
|
# bad wine implementation up through wine 1.3.21
|
|
return "AlternateUserName"
|
|
buffer = create_unicode_buffer(len(buffer) * 2)
|
|
size.value = len(buffer)
|
|
return buffer.value.encode('utf-16-le')[::2]
|
|
return GetUserName
|
|
GetUserName = GetUserName()
|
|
|
|
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, flags):
|
|
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, flags, byref(outdata)):
|
|
raise DrmException("Failed to Unprotect Data")
|
|
return string_at(outdata.pbData, outdata.cbData)
|
|
return CryptUnprotectData
|
|
CryptUnprotectData = CryptUnprotectData()
|
|
|
|
|
|
# Locate all of the kindle-info style files and return as list
|
|
def getKindleInfoFiles(kInfoFiles):
|
|
regkey = winreg.OpenKey(winreg.HKEY_CURRENT_USER, "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders\\")
|
|
path = winreg.QueryValueEx(regkey, 'Local AppData')[0]
|
|
|
|
# first look for older kindle-info files
|
|
kinfopath = path +'\\Amazon\\Kindle For PC\\{AMAwzsaPaaZAzmZzZQzgZCAkZ3AjA_AY}\\kindle.info'
|
|
if not os.path.isfile(kinfopath):
|
|
print('No kindle.info files have not been found.')
|
|
else:
|
|
kInfoFiles.append(kinfopath)
|
|
|
|
# now look for newer (K4PC 1.5.0 and later rainier.2.1.1.kinf file
|
|
|
|
kinfopath = path +'\\Amazon\\Kindle For PC\\storage\\rainier.2.1.1.kinf'
|
|
if not os.path.isfile(kinfopath):
|
|
print('No K4PC 1.5.X .kinf files have not been found.')
|
|
else:
|
|
kInfoFiles.append(kinfopath)
|
|
|
|
# now look for even newer (K4PC 1.6.0 and later) rainier.2.1.1.kinf file
|
|
kinfopath = path +'\\Amazon\\Kindle\\storage\\rainier.2.1.1.kinf'
|
|
if not os.path.isfile(kinfopath):
|
|
print('No K4PC 1.6.X .kinf files have not been found.')
|
|
else:
|
|
kInfoFiles.append(kinfopath)
|
|
|
|
return kInfoFiles
|
|
|
|
|
|
# determine type of kindle info provided and return a
|
|
# database of keynames and values
|
|
def getDBfromFile(kInfoFile):
|
|
names = ["kindle.account.tokens","kindle.cookie.item","eulaVersionAccepted","login_date","kindle.token.item","login","kindle.key.item","kindle.name.info","kindle.device.info", "MazamaRandomNumber", "max_date", "SIGVERIF"]
|
|
DB = {}
|
|
cnt = 0
|
|
infoReader = open(kInfoFile, 'r')
|
|
hdr = infoReader.read(1)
|
|
data = infoReader.read()
|
|
|
|
if data.find('{') != -1 :
|
|
|
|
# older style kindle-info file
|
|
items = data.split('{')
|
|
for item in items:
|
|
if item != '':
|
|
keyhash, rawdata = item.split(':')
|
|
keyname = "unknown"
|
|
for name in names:
|
|
if encodeHash(name,charMap2) == keyhash:
|
|
keyname = name
|
|
break
|
|
if keyname == "unknown":
|
|
keyname = keyhash
|
|
encryptedValue = decode(rawdata,charMap2)
|
|
DB[keyname] = CryptUnprotectData(encryptedValue, "", 0)
|
|
cnt = cnt + 1
|
|
if cnt == 0:
|
|
DB = None
|
|
return DB
|
|
|
|
# else newer style .kinf file
|
|
# the .kinf file uses "/" to separate it into records
|
|
# so remove the trailing "/" to make it easy to use split
|
|
data = data[:-1]
|
|
items = data.split('/')
|
|
|
|
# loop through the item records until all are processed
|
|
while len(items) > 0:
|
|
|
|
# get the first item record
|
|
item = items.pop(0)
|
|
|
|
# the first 32 chars of the first record of a group
|
|
# is the MD5 hash of the key name encoded by charMap5
|
|
keyhash = item[0:32]
|
|
|
|
# the raw keyhash string is also used to create entropy for the actual
|
|
# CryptProtectData Blob that represents that keys contents
|
|
entropy = SHA1(keyhash)
|
|
|
|
# the remainder of the first record when decoded with charMap5
|
|
# has the ':' split char followed by the string representation
|
|
# of the number of records that follow
|
|
# and make up the contents
|
|
srcnt = decode(item[34:],charMap5)
|
|
rcnt = int(srcnt)
|
|
|
|
# read and store in rcnt records of data
|
|
# that make up the contents value
|
|
edlst = []
|
|
for i in xrange(rcnt):
|
|
item = items.pop(0)
|
|
edlst.append(item)
|
|
|
|
keyname = "unknown"
|
|
for name in names:
|
|
if encodeHash(name,charMap5) == keyhash:
|
|
keyname = name
|
|
break
|
|
if keyname == "unknown":
|
|
keyname = keyhash
|
|
|
|
# the charMap5 encoded contents data has had a length
|
|
# of chars (always odd) cut off of the front and moved
|
|
# to the end to prevent decoding using charMap5 from
|
|
# working properly, and thereby preventing the ensuing
|
|
# CryptUnprotectData call from succeeding.
|
|
|
|
# The offset into the charMap5 encoded contents seems to be:
|
|
# len(contents) - largest prime number less than or equal to int(len(content)/3)
|
|
# (in other words split "about" 2/3rds of the way through)
|
|
|
|
# move first offsets chars to end to align for decode by charMap5
|
|
encdata = "".join(edlst)
|
|
contlen = len(encdata)
|
|
noffset = contlen - primes(int(contlen/3))[-1]
|
|
|
|
# now properly split and recombine
|
|
# by moving noffset chars from the start of the
|
|
# string to the end of the string
|
|
pfx = encdata[0:noffset]
|
|
encdata = encdata[noffset:]
|
|
encdata = encdata + pfx
|
|
|
|
# decode using Map5 to get the CryptProtect Data
|
|
encryptedValue = decode(encdata,charMap5)
|
|
DB[keyname] = CryptUnprotectData(encryptedValue, entropy, 1)
|
|
cnt = cnt + 1
|
|
|
|
if cnt == 0:
|
|
DB = None
|
|
return DB
|
|
|
|
|