ResetSrkAuth method of the Win32_Tpm class

The ResetSrkAuth method of the Win32_Tpm class resets the Storage Root Key (SRK) authorization value to be compatible with the operating system.

Syntax

uint32 ResetSrkAuth(
  [in, optional] string OwnerAuth
);

Parameters

OwnerAuth [in, optional]

Type: string

A string that identifies the TPM owner. This string must be a base64-encoded null-terminated string that contains exactly 20 bytes of binary data. Use the ConvertToOwnerAuth method to translate a passphrase to this expected format. The OwnerAuth parameter is read from the registry if none is provided.

Return value

Type: uint32

All TPM errors as well as errors specific to TPM Base Services can be returned.

The following table lists some of the common return codes.

Return code/value Description
S_OK
0 (0x0)
The method was successful.
TPM_E_AUTHFAIL
2150105089 (0x80280001)
The provided owner authorization value cannot fulfill the request.
TPM_E_DEFEND_LOCK_RUNNING
2150107139 (0x80280803)
The TPM is defending against dictionary attacks and is in a time-out period. For more information, see the ResetAuthLockOut method.

 

Remarks

Managed Object Format (MOF) files contain the definitions for Windows Management Instrumentation (WMI) classes. MOF files are not installed as part of the Windows SDK. They are installed on the server when you add the associated role by using the Server Manager. For more information about MOF files, see Managed Object Format (MOF).

Requirements

Requirement Value
Minimum supported client
Windows Vista [desktop apps only]
Minimum supported server
Windows Server 2008 [desktop apps only]
Namespace
Root\CIMV2\Security\MicrosoftTpm
MOF
Win32_tpm.mof
DLL
Win32_tpm.dll

See also

Win32_Tpm