Update DeDRM version number to 6.8.1, and kindlekey to 2.8

Fix loading libcrypto on OSX Big Sur

DeDRM_plugin/__init__.py

@@ -7,7 +7,7 @@ from __future__ import with_statement
 # Copyright © 2008-2020 Apprentice Harper et al.
 
 __license__   = 'GPL v3'
-__version__ = '6.8.0'
+__version__ = '6.8.1'
 __docformat__ = 'restructuredtext en'
 
 
@@ -71,6 +71,7 @@ __docformat__ = 'restructuredtext en'
 #   6.6.3 - More cleanup of kindle book names and start of support for .kinf2018
 #   6.7.0 - Handle new library in calibre.
 #   6.8.0 - Full support for .kinf2018 and new KFX encryption (Kindle for PC/Mac 2.5+)
+#   6.8.1 - Kindle key fix for Mac OS X Big Syr
 
 """
 Decrypt DRMed ebooks.

DeDRM_plugin/kindlekey.py

@@ -7,7 +7,7 @@ from __future__ import with_statement
 # Copyright © 2008-2020 Apprentice Harper et al.
 
 __license__ = 'GPL v3'
-__version__ = '2.7'
+__version__ = '2.8'
 
 # Revision history:
 #  1.0   - Kindle info file decryption, extracted from k4mobidedrm, etc.
@@ -30,6 +30,7 @@ __version__ = '2.7'
 #  2.5   - Final Fix for Windows user names with non-ascii characters, thanks to oneofusoneofus
 #  2.6   - Start adding support for Kindle 1.25+ .kinf2018 file
 #  2.7   - Finish .kinf2018 support, PC & Mac by Apprentice Sakuya
+#  2.8   - Fix for Mac OS X Big Sur
 
 
 """
@@ -901,7 +902,7 @@ if iswindows:
                 # double the buffer size
                 buffer = create_unicode_buffer(len(buffer) * 2)
                 size.value = len(buffer)
-            
+
             # replace any non-ASCII values with 0xfffd
             for i in xrange(0,len(buffer)):
                 if buffer[i]>u"\u007f":
@@ -987,7 +988,7 @@ if iswindows:
                 found = True
                 print('Found K4PC 1.25+ kinf2018 file: ' + kinfopath.encode('ascii','ignore'))
                 kInfoFiles.append(kinfopath)
-                
+
             # look for (K4PC 1.9.0 and later) .kinf2011 file
             kinfopath = path +'\\Amazon\\Kindle\\storage\\.kinf2011'
             if os.path.isfile(kinfopath):
@@ -1183,8 +1184,12 @@ elif isosx:
 
         libcrypto = find_library('crypto')
         if libcrypto is None:
-            raise DrmException(u"libcrypto not found")
-        libcrypto = CDLL(libcrypto)
+            libcrypto = '/usr/lib/libcrypto.dylib'
+        try:
+            libcrypto = CDLL(libcrypto)
+        except Exception as e:
+            raise DrmException(u"libcrypto not found: " % e)
+
 
         # From OpenSSL's crypto aes header
         #
@@ -1534,7 +1539,7 @@ elif isosx:
             try:
                 DB = {}
                 items = data.split('/')
-               
+
                 # the headerblob is the encrypted information needed to build the entropy string
                 headerblob = items.pop(0)
                 encryptedValue = decode(headerblob, charMap1)