tpm_changeownerauth(8) System Manager's Manual tpm_changeownerauth(8)
TPM Management - tpm_changeownerauth
tpm_changeownerauth - change the authorization data associated with the owner or SRK
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
Display command usage info.
Display command version info.
-l, --log [none|error|info|debug]
Set logging level.
Use TSS UNICODE encoding for passwords to comply with applications using TSS popup boxes
Change the authorization data for the TPM owner.
Change the authorization data for the TPM's Storage Root Key.
Use TSS UNICODE encoding for original password to comply with applications using TSS popup boxes
Use TSS UNICODE encoding for new password to comply with applications using TSS popup boxes
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
Change password to a secret of all zeros (20 bytes of zeros). It must be specified which password (owner, SRK or both) to change
tpm_version(1), tpm_takeownership(8), tcsd(8)
Report bugs to <email@example.com>
TPM Management 2005-05-06 tpm_changeownerauth(8)