tpm_changeownerauth - Online Linux Manual PageSection : 8
Updated : 2005-05-06
Source : TPM Management
TPM Management - tpm_changeownerauth
NAMEtpm_changeownerauth − change the authorization data associated with the owner or SRK
SYNOPSIStpm_changeownerauth [OPTION]
DESCRIPTIONtpm_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 ALSOtpm_version(1), tpm_takeownership(8), tcsd(8)
REPORTING BUGSReport bugs to <trousers-users@lists.sourceforge.net> 0
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