tools v5.0
Introduction of alfcrypto library for speed Reorganisation of archive plugins,apps,other
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@@ -14,7 +14,7 @@ from __future__ import with_statement
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# 2 - Added OS X support by using OpenSSL when available
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# 3 - screen out improper key lengths to prevent segfaults on Linux
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# 3.1 - Allow Windows versions of libcrypto to be found
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# 3.2 - add support for encoding to 'utf-8' when building up list of files to cecrypt from encryption.xml
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# 3.2 - add support for encoding to 'utf-8' when building up list of files to cecrypt from encryption.xml
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# 3.3 - On Windows try PyCrypto first and OpenSSL next
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# 3.4 - Modify interace to allow use with import
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@@ -50,7 +50,7 @@ def _load_crypto_libcrypto():
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libcrypto = CDLL(libcrypto)
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AES_MAXNR = 14
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c_char_pp = POINTER(c_char_p)
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c_int_p = POINTER(c_int)
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@@ -58,13 +58,13 @@ def _load_crypto_libcrypto():
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_fields_ = [('rd_key', c_long * (4 * (AES_MAXNR + 1))),
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('rounds', c_int)]
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AES_KEY_p = POINTER(AES_KEY)
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def F(restype, name, argtypes):
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func = getattr(libcrypto, name)
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func.restype = restype
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func.argtypes = argtypes
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return func
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AES_cbc_encrypt = F(None, 'AES_cbc_encrypt',
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[c_char_p, c_char_p, c_ulong, AES_KEY_p, c_char_p,
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c_int])
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@@ -73,7 +73,7 @@ def _load_crypto_libcrypto():
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AES_cbc_encrypt = F(None, 'AES_cbc_encrypt',
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[c_char_p, c_char_p, c_ulong, AES_KEY_p, c_char_p,
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c_int])
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class AES(object):
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def __init__(self, userkey):
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self._blocksize = len(userkey)
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@@ -84,7 +84,7 @@ def _load_crypto_libcrypto():
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rv = AES_set_decrypt_key(userkey, len(userkey) * 8, key)
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if rv < 0:
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raise IGNOBLEError('Failed to initialize AES key')
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def decrypt(self, data):
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out = create_string_buffer(len(data))
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iv = ("\x00" * self._blocksize)
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@@ -122,7 +122,7 @@ def _load_crypto():
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AES = _load_crypto()
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"""
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Decrypt Barnes & Noble ADEPT encrypted EPUB books.
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