Sign Powershell Script

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New-SelfSignedCertificate

https://community.spiceworks.com/how_to/153255-windows-10-signing-a-powershell-script-with-a-self-signed-certificate

PS C:\tmp\Azure> New-SelfSignedCertificate -CertStoreLocation cert:\currentuser\my -Subject "CN=Local Code Signing" -KeyAlgorithm RSA -KeyLength 2048 -Provider "Microsoft Enhanced RSA and AES Cryptographic Provider" -KeyExportPolicy Exportable -KeyUsage DigitalSignature ` -Type CodeSigningCert


   PSParentPath: Microsoft.PowerShell.Security\Certificate::CurrentUser\my

Thumbprint                                Subject
----------                                -------
FBEA9166C4E1429775EB6BDEE47E54E49083811C  CN=Local Code Signing


$cert = @(Get-ChildItem cert:\CurrentUser\My -CodeSigning)[0] 

Set-AuthenticodeSignature .\your-script.ps1 $cert