NCryptRegisterProtectionDescriptorName function (ncryptprotect.h)

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The NCryptRegisterProtectionDescriptorName function registers the display name and the associated rule string for a protection descriptor.

Syntax

SECURITY_STATUS NCryptRegisterProtectionDescriptorName(
  [in]           LPCWSTR pwszName,
  [in, optional] LPCWSTR pwszDescriptorString,
                 DWORD   dwFlags
);

Parameters

[in] pwszName

Pointer to a null-terminated Unicode string that contains the display name of the descriptor to be registered.

[in, optional] pwszDescriptorString

Pointer to a null-terminated Unicode string that contains a protection descriptor rule. If this parameter is NULL or the string is empty, the registry value previously created for the pwszName parameter will be deleted.

dwFlags

A constant that indicates the registry hive under which to register the new entry. If this value is zero (0), the registry root is HKEY_CURRENT_USER. If this value is NCRYPT_MACHINE_KEY_FLAG, the root is HKEY_LOCAL_MACHINE.

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
ERROR_SUCCESS
 The function was successful.
NTE_INVALID_PARAMETER
 The pwszName parameter cannot be NULL, and the value pointed to by the parameter cannot be an empty string.
NTE_BAD_FLAGS
 The dwFlags parameter must be zero or NCRYPT_MACHINE_KEY_FLAG.

Remarks

The registry key created by using this function is not volatile. The information is stored in a file and preserved when the computer shuts down.

Requirements

Requirement Value
Minimum supported client Windows 8 [desktop apps only]
Minimum supported server Windows Server 2012 [desktop apps only]
Target Platform Windows
Header ncryptprotect.h
Library NCrypt.lib
DLL NCrypt.dll

See also

CNG DPAPI Functions

NCryptQueryProtectionDescriptorName