---
name: "tpm_unsealdata"
section: "1"
platform: "linux"
package: "tpm-tools"
version: "1.3.9.2-0.2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/tpm_unsealdata"
---

# tpm\_unsealdata(1)

unseal input data with the SRK of the system's TPM

TPM Management - tpm\_unsealdata

## NAME

tpm\_unsealdata - unseal input data with the SRK of the system's TPM

## SYNOPSIS

**tpm\_unsealdata** \[**OPTION**\]

## DESCRIPTION

**tpm\_unsealdata** unseals sensitive data that was sealed the SRK of the system's TPM.

- **-h**, **--help**

  Display command usage info.

- **-v**, **--version**

  Display command version info.

- **-l**, **--log** \[none\|error\|info\|debug\]

  Set logging level.

- **-i**, **--infile FILE**

  File containing data to unseal.

- **-o**, **--outfile FILE**

  Filename to write unsealed data to.  Default is STDOUT.

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

  Use TSS\_WELL\_KNOWN\_SECRET (20 zero bytes) as the SRK password. You will not be prompted for the SRK password with this option.

## SEE ALSO

[**tpm\_sealdata**(1)](/tpm_sealdata/1.md), [**tpmUnsealFile**(3)](/tpmUnsealFile/3.md)

## REPORTING BUGS

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