ps-signed.ps1

$MyCert = new-SelfSignedCertificate -CertStoreLocation Cert:\LocalMachine\my `
        -DnsName api.vm360degee.com `
        -friendlyname api.vm360degree.com `
        -NotAfter ( [DateTime]::Now.AddYears(5)) `
        -KeyAlgorithm RSA `
        -KeyLength 2048 `
        -KeySpec Signature `
        -Provider "Microsoft Enhanced RSA and AES Cryptographic Provider" `
        -KeyExportPolicy Exportable `
        -KeyUsage DigitalSignature `
        -Type CodeSigningCert

$MyPath = 'Cert:\LocalMachine\my\' + $MyCert.Thumbprint 

Move-Item -Path $MyPath -Destination Cert:\LocalMachine\Root

$cert= Get-ChildItem cert:\localmachine\root -CodeSigningCert |?{$_.friendlyname -eq "api.vm360degree.com"}

Set-AuthenticodeSignature C:\work\Azure\cert\hello.ps1 `
    -Certificate $cert `
    -TimestampServer http://timestamp.comodoca.com/authenticode

Get-AuthenticodeSignature -FilePath C:\work\Azure\cert\hello.ps1