Error with Keyprovider/Yubikey and composite key

[simwinaga]

Hi,
I'm using the WinHelloUnlock Plugin now for a long time without any problem.

Recently we ordered some Yubikeys (Yubikey 5 NFC) to have a MFA for our KP-Database.
Now, when i set the yubikey as an additional factor (KeeChallenge_1.5, keyprovider, Yubikey challenge-response) the WinHelloUnlock doesn't work anymore. I can only unlock the db with the master password and the Yubikey.

When i try to re-"create WinHelloUnlock data for this Database" i always get this error:

translated:
"Error saving the composite key: The value should not be NULL. Parametername: a"

To Reproduce
Steps to reproduce the behavior:

1. Install KeeChallenge Keyprovider for Yubikey
2. Open (existing) KP-DB with working WinHelloUnlock
3. File -> Change Master Key
4. Type (new) Master Password
5. Tick Expert-Options, Key-File and Yubikey challenge-response
6. Paste the Secret Key
7. Save DB
8. WinHelloUnlock wants to save the new "password"
9. Fails with above error

(And like i said, recreate the WinHelloUnlock data in the options fails again with the same error)

Win10 21H2
KeePass 2.50 (64bit) - installed Plugins: WinHelloUnlock 1.6.1, KeeChallenge 1.5.0.0, KeePassRPC 1.14.0.0

[Angelelz]

Hello, thanks for the report. Currently this plugin only supports a Composite Key with any combination of Password/KeyFile/WindowsUserAccount as stated in the Readme:

Setup

After installation, open your database and unlock it using your composite key. Unlocking with any combination of Password/KeyFile/WindowsUserAccount is supported. Secure Desktop is supported.

I might add support for other keys (Like MFA) in the future.

[simwinaga]

with future, you mean the near future? :-)