BCryptDestroyHash function (bcrypt.h)
The BCryptDestroyHash function destroys a hash or Message Authentication Code (MAC) object.
Syntax
NTSTATUS BCryptDestroyHash(
[in, out] BCRYPT_HASH_HANDLE hHash
);
Parameters
[in, out] hHash
The handle of the hash or MAC object to destroy. This handle is obtained by using the BCryptCreateHash function.
Return value
Returns 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 |
|---|---|
|
The function was successful. |
|
The algorithm handle in the hHash parameter is not valid. |
Remarks
Depending on what processor modes a provider supports, BCryptDestroyHash can be called either from user mode or kernel mode. Kernel mode callers can execute either at PASSIVE_LEVEL IRQL or DISPATCH_LEVEL IRQL. If the current IRQL level is DISPATCH_LEVEL, the handle provided in the hHash parameter must be derived from an algorithm handle returned by a provider that was opened by using the BCRYPT_PROV_DISPATCH flag.
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.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps | UWP apps] |
| Minimum supported server | Windows Server 2008 [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | bcrypt.h |
| Library | Bcrypt.lib |
| DLL | Bcrypt.dll |