Lots of B&N updates

DeDRM_plugin/ignoblekeyWindowsStore.py

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+# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
+
+'''
+Obtain the user's ccHash from the Barnes & Noble Nook Windows Store app. 
+https://www.microsoft.com/en-us/p/nook-books-magazines-newspapers-comics/9wzdncrfj33h
+(Requires a recent Windows version in a supported region (US).)
+This procedure has been tested with Nook app version 1.11.0.4 under Windows 11.
+
+Based on experimental standalone python script created by fesiwi at 
+https://github.com/noDRM/DeDRM_tools/discussions/9
+'''
+
+import sys, os
+import apsw
+import base64
+try: 
+    from Cryptodome.Cipher import AES
+except:
+    from Crypto.Cipher import AES
+import hashlib
+from lxml import etree
+
+
+NOOK_DATA_FOLDER = "%LOCALAPPDATA%\\Packages\\BarnesNoble.Nook_ahnzqzva31enc\\LocalState"
+PASS_HASH_SECRET = "9ca588496a1bc4394553d9e018d70b9e"
+
+def unpad(data):
+
+    if sys.version_info[0] == 2:
+        pad_len = ord(data[-1])
+    else:
+        pad_len = data[-1]
+
+    return data[:-pad_len]
+
+
+def dump_keys(print_result=False):
+    db_filename = os.path.expandvars(NOOK_DATA_FOLDER + "\\NookDB.db3")
+
+
+    if not os.path.isfile(db_filename):
+        print("Database file not found. Is the Nook Windows Store app installed?")
+        return []
+
+    
+    # Python2 has no fetchone() so we have to use fetchall() and discard everything but the first result.
+    # There should only be one result anyways.
+    serial_number = apsw.Connection(db_filename).cursor().execute(
+                "SELECT value FROM bn_internal_key_value_table WHERE key = 'serialNumber';").fetchall()[0][0]
+
+
+    hash_key = hashlib.sha1(bytearray.fromhex(serial_number + PASS_HASH_SECRET)).digest()[:16]
+
+    activation_file_name = os.path.expandvars(NOOK_DATA_FOLDER + "\\settings\\activation.xml")
+
+    if not os.path.isfile(activation_file_name):
+        print("Activation file not found. Are you logged in to your Nook account?")
+        return []
+
+
+    activation_xml = etree.parse(activation_file_name)
+
+    decrypted_hashes = []
+
+    for pass_hash in activation_xml.findall(".//{http://ns.adobe.com/adept}passHash"):
+        encrypted_cc_hash = base64.b64decode(pass_hash.text)
+        cc_hash = unpad(AES.new(hash_key, AES.MODE_CBC, encrypted_cc_hash[:16]).decrypt(encrypted_cc_hash[16:]))
+        decrypted_hashes.append((base64.b64encode(cc_hash).decode("ascii")))
+        if print_result:
+            print("Nook ccHash is %s" % (base64.b64encode(cc_hash).decode("ascii")))
+    
+    return decrypted_hashes
+
+if __name__ == "__main__":
+    dump_keys(True)