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@dahlsailrunner
Last active August 13, 2024 10:50
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Selfsigned certs in IIS from PowerShell

Create Authority

New-SelfSignedCertificate -DnsName "KnowYourToolset Cert Authority" -CertStoreLocation "Cert:\LocalMachine\My" -KeyUsage CertSign,CRLSign

Creates root authority with permission to sign stuff

Export-Certificate -Cert Cert:\LocalMachine\My\<CERTHUMB> -FilePath kytroot.cer

Trust Authority

Import-Certificate -FilePath .\kytroot.cer -CertStoreLocation Cert:\LocalMachine\Root

This is the public key and could be imported on any machine you want to trust SSL certs on

Create Actual Certificate

$rootcert = (Get-ChildItem -Path Cert:\LocalMachine\My\<CERTHUMB>)

The my is important here -- this needs to be in a place where the private key is available

New-SelfSignedCertificate -DnsName "todo.knowyourtoolset.com" -CertStoreLocation Cert:\LocalMachine\My -Signer $rootcert

Sharing

If you need to move RootAuthority around:

Export-PfxCertificate

If you need to put your domain pfx on more servers: Export-PfxCertificate with secretstring pwd, then import to LocalMachine\My wherever Thumbprint is constant

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