load_rsa_private_numbers() missing 1 required positional argument: 'unsafe_skip_rsa_key_validation'

[psyray]

Hi,

When trying to decrypt Master Key with Domain PVK I have the following error

Traceback (most recent call last):
  File "/path/bin/pypykatz", line 8, in <module>
    sys.exit(main())
  File "/path/lib/python3.10/site-packages/pypykatz/__main__.py", line 89, in main
    helper.execute(args)
  File "/path/lib/python3.10/site-packages/pypykatz/dpapi/cmdhelper.py", line 151, in execute
    self.run(args)
  File "/path/lib/python3.10/site-packages/pypykatz/dpapi/cmdhelper.py", line 217, in run
    dpapi.decrypt_masterkey_file_with_pvk(args.masterkeyfile, args.pvkfile)
  File "/path/lib/python3.10/site-packages/pypykatz/dpapi/dpapi.py", line 354, in decrypt_masterkey_file_with_pvk
    privkey = PVKFile.from_file(pvkfile).get_key()
  File "/path/lib/python3.10/site-packages/winacl/dtyp/wcee/pvkfile.py", line 72, in get_key
    return RSAPrivateKeyBlob.from_bytes(self.keyblob).get_key()
  File "/path/lib/python3.10/site-packages/winacl/dtyp/wcee/rsaprivkey.py", line 52, in get_key
    return default_backend().load_rsa_private_numbers(numbers)
TypeError: Backend.load_rsa_private_numbers() missing 1 required positional argument: 'unsafe_skip_rsa_key_validation'

My command is

pypykatz dpapi masterkeypvk AppData/Roaming/Microsoft/Protect/S-1-5-21-xxx-xxx-xxx-500/xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxx ntds_capi_xxxxx-xxxx-xxxx-xxxx-xxxxxxxxx.pvk

Can't identify if problem comes from pypykatz or winacl

Do you have a solution ?

[skelsec]

I don't have a solution as I

1. Can't reproduce the issue
2. Checking the documentation on load_rsa_private_numbers here doesn't mention any required arguments besides that supplied.