Smart Card Change PIN breaks

Hi There,

I have a small issue to discuss.

When I press (Ctrl + Alt + Del), and do a change password, there is a smart card PIN change tile that comes up.

We have a CSP program that is running and loaded correctly by the logonUI.

Here the Smart card is recognized, but when we click “Smart Card PIN change”, it throws a smart card error.

Looking more into the CSP behavior, I see that there is a call to CPGetProvParam and passed in a new, undocumented parameter (PP_USER_CERTSTORE ).

Since this is a new parameter, no existing CSP supports it, including ours. I am returning false(not implemented) from this api.

Am not sure (just speculating) if this is the culprit for the failure of the “smart card change pin”

( After this there are calls to CPGetUserKey though etc. )

There are two things I wish to ask for:

1. I need to know how our CSP is suppose to respond to this new parameter, because similar problem arises during smart card logon also.
2. It would be good if I get the flow of calls that logonui/ smart card credential provider does into the CSP while doing this sequence of “Smart Card Change PIN”, because I have not yet hit the call to SetPIN in my logs.( or could you pls. direct me to any debug logs that can help me move further.)