---
name: "tpm_setoperatorauth"
section: "8"
platform: "linux"
package: "tpm-tools"
version: "1.3.9.2-0.2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/tpm_setoperatorauth"
---

# tpm\_setoperatorauth(8)

sets the operator authorization value in the TPM

TPM Management - tpm\_setoperatorauth

## NAME

tpm\_setoperatorauth - sets the operator authorization value in the TPM

## SYNOPSIS

**tpm\_setoperatorauth** \[**OPTION**\]

## DESCRIPTION

**tpm\_setoperatorauth** allows setting the operator authorization value in the TPM   (via the TPM\_SetOperatorAuth API).  This operation prompts for the new password and a confirmation of it. The **--well-known** option tells the API to use the default TSS\_WELL\_KNOWN\_SECRET (a 20-bytes array of zeros) as operator authorization information, instead of prompting for one.

- **-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

- **-z**, **--well-known**

  Use the default TSS\_WELL\_KNOWN\_SECRET 20-bytes array of zeros as the operator password.

- **-p**, **--op\_password\_unicode**

  Use TSS UNICODE encoding for new operator password to comply with applications using TSS popup boxes

## SEE ALSO

[**tpm\_version**(1)](/tpm_version/1.md), [**tpm\_takeownership**(8)](/tpm_takeownership/8.md), [**tcsd**(8)](/tcsd/8.md)

## REPORTING BUGS

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