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Make B&N plugin skip invalid hashes in Windows app

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This commit is contained in:
NoDRM 2022-03-18 17:45:07 +01:00
parent 82a698edf6
commit a4689f6ac0
1 changed files with 9 additions and 5 deletions
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4
DeDRM_plugin/ignoblekeyWindowsStore.py
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@ -13,6 +13,7 @@ https://github.com/noDRM/DeDRM_tools/discussions/9
import sys, os
import apsw
import base64
import traceback
try:
from Cryptodome.Cipher import AES
from Cryptodome.Util.Padding import unpad
@ -56,11 +57,14 @@ def dump_keys(print_result=False):
decrypted_hashes = []
for pass_hash in activation_xml.findall(".//{http://ns.adobe.com/adept}passHash"):
try:
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:]), 16)
decrypted_hashes.append((base64.b64encode(cc_hash).decode("ascii")))
if print_result:
print("Nook ccHash is %s" % (base64.b64encode(cc_hash).decode("ascii")))
except:
traceback.print_exc()
return decrypted_hashes