tpm_setclearable - Man Page

tpm_setclearable [OPTION]

tpm_setclearable reports the status of the TPM's flags regarding how the TPM can be cleared.  This is the default behavior and also accessible via the --status option. Requesting a report of this status prompts for the owner password.  The --owner option requests that the TPM disable clear operations   (via the TPM_DisableOwnerClear API) disabling the owner from clearing out the ownership information.  This operation prompts for the owner password.  This operation is in effect until the current owner is cleared.  The --force  option (via the TPM_DisableForceClear API) disables using Phyiscal Presence to authorize a clear operation.  This operation does not require authorization and will skip the owner password prompt.  This operation is only in effect until a reboot.

-h,  --help

Display command usage info.

-v,  --version

Display command version info.

-l,  --log [none|error|info|debug]

Set logging level.

-u,  --unicode

Use TSS UNICODE encoding for passwords to comply with applications using TSS popup boxes

-s,  --status

Report the status of flags regarding how the TPM can be cleared.

-o,  --owner

Disable use of owner authorization for authorizating a clear operation until a new owner exists.

-f,  --force

Disable use of Physical Presence for authorizating a clear operation until a reboot has occurred.

-z,  --well-known

Authenticate using 20 bytes of zeros as owner password (the default TSS Well Known Secret), instead of prompting for an owner password.

tpm_version(1), tpm_takeownership(8), tpm_clear(8), tcsd(8)

Report bugs to <trousers-users@lists.sourceforge.net>

tpm_clear(8).