tpm_changeownerauth(8) [debian man page]

tpm_changeownerauth(8)					      System Manager's Manual					    tpm_changeownerauth(8)

						       TPM Management - tpm_changeownerauth

NAME

       tpm_changeownerauth - change the authorization data associated with the owner or SRK

SYNOPSIS

       tpm_changeownerauth [OPTION]

DESCRIPTION

       tpm_changeownerauth allows for changing the authorization data for the TPM owner or the TPM's Storage Root Key (via the TPM_ChangeAuthOwner
       API).  This operation prompts for current password, followed by the new password and a confirmation of the new password. The --owner option
       changes the TPM owner password and --srk option changes the TPM's SRK password. The --well-known option is used when SRK or owner passwords
       need to be changed and current owner password is a secret of zeros, --set-well-known option changes current password to a secret of zeros,
       both options do not work by themselves, they must be used with --owner and --srk options to indicate which of these passwords will be
       changed.

       -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

       -o, --owner
	      Change the authorization data for the TPM owner.

       -s, --srk
	      Change the authorization data for the TPM's Storage Root Key.

       -g, --original_password_unicode
	      Use TSS UNICODE encoding for original password to comply with applications using TSS popup boxes

       -n, --new_password_unicode
	      Use TSS UNICODE encoding for new password to comply with applications using TSS popup boxes

       -z, --well-known
	      Change password to a new one when current owner password is a secret of all zeros (20 bytes of zeros). It must be specified which
	      password (owner, SRK or both) to change

       -r, --set-well-known
	      Change password to a secret of all zeros (20 bytes of zeros). It must be specified which password (owner, SRK or both) to change

       SEE ALSO

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

REPORTING BUGS

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

TPM Management							    2005-05-06						    tpm_changeownerauth(8)

Check Out this Related Man Page

tpm_setclearable(8)					      System Manager's Manual					       tpm_setclearable(8)

							TPM Management - tpm_setclearable

NAME

       tpm_setclearable - disable TPM clear operations

SYNOPSIS

       tpm_setclearable [OPTION]

DESCRIPTION

       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.

SEE ALSO

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

REPORTING BUGS

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

TPM Management							    2005-05-05						       tpm_setclearable(8)

Linux and UNIX Man Pages

tpm_changeownerauth(8) [debian man page]

Check Out this Related Man Page