The BCryptCloseAlgorithmProvider function closes a CNG algorithm provider.
Note: Callers targeting Windows 10 and later should consider using CNG Algorithm Pseudo-handles instead of opening and closing CNG algorithm providers. See remarks of the CNG Algorithm Pseudo-handle documentation for restrictions.
SyntaxNTSTATUS BCryptCloseAlgorithmProvider(
[in, out] BCRYPT_ALG_HANDLE hAlgorithm,
[in] ULONG dwFlags
);
[in, out] hAlgorithm
A handle that represents the algorithm provider to close. This handle is obtained by calling the BCryptOpenAlgorithmProvider function.
[in] dwFlags
A set of flags that modify the behavior of this function. No flags are defined for this function.
Return valueReturns a status code that indicates the success or failure of the function.
Possible return codes include, but are not limited to, the following.
Return code Description STATUS_SUCCESS The function was successful. STATUS_INVALID_HANDLE The algorithm handle specified by the hAlgorithm parameter is not valid, or is a pseudo-handle which cannot be closed.BCryptCloseAlgorithmProvider can be called either from user mode or kernel mode. Kernel mode callers must be executing at PASSIVE_LEVEL IRQL.
To call this function in kernel mode, use Cng.lib, which is part of the Driver Development Kit (DDK). Windows Server 2008 and Windows Vista: To call this function in kernel mode, use Ksecdd.lib.
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