DeDRM_tools/Kindle_Mobi_Tools/lib/kindlepid.py
Igor Skochinsky a186ae1c5a Second release of kindlepid and kindlefix
With needed prc library mistakenly left off last commit
2015-02-26 17:52:33 +00:00

73 lines
2.0 KiB
Python

#!/usr/bin/python
# Mobipocket PID calculator v0.2 for Amazon Kindle.
# Copyright (c) 2007, 2009 Igor Skochinsky <skochinsky@mail.ru>
# History:
# 0.1 Initial release
# 0.2 Added support for generating PID for iPhone (thanks to mbp)
import sys, binascii
if sys.hexversion >= 0x3000000:
print "This script is incompatible with Python 3.x. Please install Python 2.6.x from python.org"
sys.exit(2)
letters = "ABCDEFGHIJKLMNPQRSTUVWXYZ123456789"
def crc32(s):
return (~binascii.crc32(s,-1))&0xFFFFFFFF
def checksumPid(s):
crc = crc32(s)
crc = crc ^ (crc >> 16)
res = s
l = len(letters)
for i in (0,1):
b = crc & 0xff
pos = (b // l) ^ (b % l)
res += letters[pos%l]
crc >>= 8
return res
def pidFromSerial(s, l):
crc = crc32(s)
arr1 = [0]*l
for i in xrange(len(s)):
arr1[i%l] ^= ord(s[i])
crc_bytes = [crc >> 24 & 0xff, crc >> 16 & 0xff, crc >> 8 & 0xff, crc & 0xff]
for i in xrange(l):
arr1[i] ^= crc_bytes[i&3]
pid = ""
for i in xrange(l):
b = arr1[i] & 0xff
pid+=letters[(b >> 7) + ((b >> 5 & 3) ^ (b & 0x1f))]
return pid
print "Mobipocket PID calculator for Amazon Kindle. Copyright (c) 2007, 2009 Igor Skochinsky"
if len(sys.argv)>1:
serial = sys.argv[1]
if len(serial)==16:
if serial.startswith("B001"):
print "Kindle 1 serial number detected"
elif serial.startswith("B002"):
print "Kindle 2 serial number detected"
else:
print "Warning: unrecognized serial number. Please recheck input."
sys.exit(1)
pid = pidFromSerial(serial,7)+"*"
print "Mobipocked PID for Kindle serial# "+serial+" is "+checksumPid(pid)
elif len(serial)==40:
print "iPhone serial number (UDID) detected"
pid = pidFromSerial(serial,8)
print "Mobipocked PID for iPhone serial# "+serial+" is "+checksumPid(pid)
else:
print "Warning: unrecognized serial number. Please recheck input."
sys.exit(1)
else:
print "Usage: kindlepid.py <Kindle Serial Number>/<iPhone/iPod Touch UDID>"