How to Sign PowerShell Scripts: A Guide for IT Pros

This guide explains the process for signing PowerShell script. You will learn how to create an enterprise certificate authority, acquire a certificate, and use that certificate to sign a PowerShell script.

Brien Posey

March 22, 2023

1 Min Read
Windows PowerShell script with dark blue background

Signing a PowerShell script with a trusted digital certificate is a best practice that every PowerShell user must know how to do.

Signing a script helps to ensure that the script is secure and has not been altered since it was created, which adds a layer of security. It also assures users that the script is legitimate and trustworthy. In addition, signed PowerShell scripts can be distributed without requiring each user to individually approve the script, simplifying and speeding up the deployment process.

The three parts of this How to Sign PowerShell Scripts guide will walk you through the process of:

  1. Setting up an Enterprise Certificate Authority (CA) on Windows Server

  2. Acquiring a certificate from that CA

  3. Using the certificate to sign a PowerShell script

Take advantage of this free download to up your PowerShell game.

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About the Author(s)

Brien Posey

Brien Posey is a bestselling technology author, a speaker, and a 20X Microsoft MVP. In addition to his ongoing work in IT, Posey has spent the last several years training as a commercial astronaut candidate in preparation to fly on a mission to study polar mesospheric clouds from space.

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