NAME

       Tspi_TPM_ClearOwner - clear TPM ownership

SYNOPSIS

       #include <tss/platform.h>
       #include <tss/tcpa_defines.h>
       #include <tss/tcpa_typedef.h>
       #include <tss/tcpa_struct.h>
       #include <tss/tss_typedef.h>
       #include <tss/tss_structs.h>
       #include <tss/tspi.h>

       TSS_RESULT Tspi_TPM_ClearOwner(TSS_HTPM hTPM, TSS_BOOL fForcedClear);

DESCRIPTION

       Tspi_TPM_ClearOwner  wipes  the  TPM  of  everything  but  its  endorsement key. It will wipe the SRK, so
       anything locked to the SRK will also disappear when this command is executed.  This is the only way to be
       certain  that  keys are gone, as it is the only way to guarantee that nothing can keep a copy of the key.
       You must assert either physical presence or owner authorization in order to use this command.

PARAMETERS

   hTPM
       The hTPM parameter is used to specify the handle of the TPM object.

   fForcedClear
       The fForcedClear  parameter  is  used  to  tell  whether  this  command  is  being  executed  with  owner
       authorization  or  with  physical presence. If FALSE, then TPM owner authorization is used. If TRUE, then
       physical presence is required to clear the TPM.

RETURN CODES

       Tspi_TPM_ClearOwner returns TSS_SUCCESS on success, otherwise one of the following values is returned:

       TSS_E_INVALID_HANDLE
              hTPM is not a valid handle.

       TSS_E_INTERNAL_ERROR
              An internal SW error has been detected.

CONFORMING TO

       Tspi_TPM_ClearOwner conforms to the Trusted Computing Group Software Specification version 1.1 Golden

SEE ALSO

       Tspi_TPM_TakeOwnership(3)