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@ -5,7 +5,7 @@
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# Copyright © 2008-2020 Apprentice Harper et al.
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__license__ = 'GPL v3'
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__version__ = '7.0.2'
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__version__ = '7.0.3'
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__docformat__ = 'restructuredtext en'
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@ -73,6 +73,7 @@ __docformat__ = 'restructuredtext en'
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# 7.0.0 - Switched to Python 3 for calibre 5.0. Thanks to all who contributed
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# 7.0.1 - More Python 3 changes. Adobe PDF decryption should now work in some cases
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# 7.0.2 - More Python 3 changes. Adobe PDF decryption should now work on PC too.
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# 7.0.3 - More Python 3 changes. Integer division in ineptpdf.py
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"""
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Decrypt DRMed ebooks.
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@ -1482,7 +1482,7 @@ class PDFDocument(object):
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# global static principal key for German Onleihe / Bibliothek Digital
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principalkeys = { b'bibliothek-digital.de': codecs.decode(b'rRwGv2tbpKov1krvv7PO0ws9S436/lArPlfipz5Pqhw=','base64')}
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self.is_printable = self.is_modifiable = self.is_extractable = True
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length = int_value(param.get('Length', 0)) / 8
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length = int_value(param.get('Length', 0)) // 8
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edcdata = str_value(param.get('EDCData')).decode('base64')
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pdrllic = str_value(param.get('PDRLLic')).decode('base64')
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pdrlpol = str_value(param.get('PDRLPol')).decode('base64')
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@ -1547,8 +1547,8 @@ class PDFDocument(object):
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if 5 <= R:
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# 8
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for _ in range(50):
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hash = hashlib.md5(hash.digest()[:length/8])
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key = hash.digest()[:length/8]
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hash = hashlib.md5(hash.digest()[:length//8])
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key = hash.digest()[:length//8]
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if R == 2:
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# Algorithm 3.4
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u1 = ARC4.new(key).decrypt(password)
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@ -1590,7 +1590,7 @@ class PDFDocument(object):
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def initialize_ebx(self, password, docid, param):
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self.is_printable = self.is_modifiable = self.is_extractable = True
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rsa = RSA(password)
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length = int_value(param.get('Length', 0)) / 8
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length = int_value(param.get('Length', 0)) // 8
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rights = codecs.decode(param.get('ADEPT_LICENSE'), 'base64')
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rights = zlib.decompress(rights, -15)
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rights = etree.fromstring(rights)
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