Clear Smart Card Pin Cache using Cryptography Next Generation API

Question

Clear Smart Card Pin Cache using Cryptography Next Generation API

Asmaa Fathy 1

I used to use CryptSetProvParam function from Crypto API to clear smart card pin cache, but this function and its API is now deprecated and it's recommended to use Cryptography Next Generation APIs instead.

So what's the replacement of CryptSetProvParam?

Timon Yang-MSFT 9,606 Reputation points

2021-03-11T09:54:49.797+00:00

@Asmaa Fathy
Are you programming in c# or c++?
By the way, I have some doubts whether there will be a class with exactly the same function as CryptSetProvParam.
Asmaa Fathy 1 Reputation point

2021-03-11T10:03:15.42+00:00

@Timon Yang-MSFT
I'm programming in C#, calling functions from c++ like this

[DllImport("Advapi32.dll", SetLastError = true)]
private static extern bool CryptSetProvParam(IntPtr hProv, uint dwParam, IntPtr pvData, uint dwFlags);
Timon Yang-MSFT 9,606 Reputation points

2021-03-30T09:17:32.637+00:00

I did not find a function in CNG that is very similar to CryptSetProvParam.
It is possible that CNG provides some new methods to clear the pin cache.
I suggest you can ask this question on StackOverflow, maybe you can get more expert opinions.

Your answer

Timon Yang-MSFT 9,606 Reputation points

2021-03-11T09:54:49.797+00:00

@Asmaa Fathy
Are you programming in c# or c++?
By the way, I have some doubts whether there will be a class with exactly the same function as CryptSetProvParam.
Asmaa Fathy 1 Reputation point

2021-03-11T10:03:15.42+00:00

@Timon Yang-MSFT
I'm programming in C#, calling functions from c++ like this

[DllImport("Advapi32.dll", SetLastError = true)]
private static extern bool CryptSetProvParam(IntPtr hProv, uint dwParam, IntPtr pvData, uint dwFlags);
Timon Yang-MSFT 9,606 Reputation points

2021-03-30T09:17:32.637+00:00

I did not find a function in CNG that is very similar to CryptSetProvParam.
It is possible that CNG provides some new methods to clear the pin cache.
I suggest you can ask this question on StackOverflow, maybe you can get more expert opinions.

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Clear Smart Card Pin Cache using Cryptography Next Generation API

Your answer