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Update ineptpdf.py

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integer division, and version
This commit is contained in:
Apprentice Harper
2021-01-03 16:11:02 +00:00
parent ed412bee35
commit a7974f0f14
2 changed files with 6 additions and 5 deletions
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8
DeDRM_plugin/ineptpdf.py
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@@ -1482,7 +1482,7 @@ class PDFDocument(object):
# global static principal key for German Onleihe / Bibliothek Digital
principalkeys = { b'bibliothek-digital.de': codecs.decode(b'rRwGv2tbpKov1krvv7PO0ws9S436/lArPlfipz5Pqhw=','base64')}
self.is_printable = self.is_modifiable = self.is_extractable = True
length = int_value(param.get('Length', 0)) / 8
length = int_value(param.get('Length', 0)) // 8
edcdata = str_value(param.get('EDCData')).decode('base64')
pdrllic = str_value(param.get('PDRLLic')).decode('base64')
pdrlpol = str_value(param.get('PDRLPol')).decode('base64')
@@ -1547,8 +1547,8 @@ class PDFDocument(object):
if 5 <= R:
# 8
for _ in range(50):
hash = hashlib.md5(hash.digest()[:length/8])
key = hash.digest()[:length/8]
hash = hashlib.md5(hash.digest()[:length//8])
key = hash.digest()[:length//8]
if R == 2:
# Algorithm 3.4
u1 = ARC4.new(key).decrypt(password)
@@ -1590,7 +1590,7 @@ class PDFDocument(object):
def initialize_ebx(self, password, docid, param):
self.is_printable = self.is_modifiable = self.is_extractable = True
rsa = RSA(password)
length = int_value(param.get('Length', 0)) / 8
length = int_value(param.get('Length', 0)) // 8
rights = codecs.decode(param.get('ADEPT_LICENSE'), 'base64')
rights = zlib.decompress(rights, -15)
rights = etree.fromstring(rights)