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 any‐
       thing 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  authoriza‐
       tion  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)

TSS 1.1                                            2004-05-25                             Tspi_TPM_ClearOwner(3)