---
name: "signtos"
section: "1"
platform: "linux"
package: "signtos"
version: "1:10.0.0+r36-1.1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/signtos"
---

# signtos(1)

signing tool for signing Trusty images

## NAME

signtos - signing tool for signing Trusty images

## SYNOPSIS

Command line tool from Android for signing Trusty image files:

**signtos** \[-providerClass *className*\] *privatekey.pk8* *input.img* *output.img*

## DESCRIPTION

Signs ARM Trusty images for use with operating systems that support it. Trusty is a set of software components supporting a Trusted Execution Environment (TEE) on mobile devices. The key must be stored in PKCS#8 format.

## SEE ALSO

SIGNAPK(1)

https://source.android.com/security/trusty/

## AUTHORS

The Android Open Source Project.