Get-CertificatePermissions.ps1

<#
.SYNOPSIS
Returns the permissions of a certificate's private key file.

.INPUTS
System.Security.Cryptography.X509Certificates.X509Certificate2 to display permissions for.

.OUTPUTS
System.Security.AccessControl.FileSecurity describing the security on the cert's private key file.

.LINK
Find-Certificate.ps1

.LINK
Get-Acl

.EXAMPLE
Get-CertificatePermissions.ps1 -Certificate $cert
Returns the permissions for the certificate in $cert.

.EXAMPLE
Find-Certificate.ps1 -FindValue ExampleCert -FindType FindBySubjectName -StoreName TrustedPeople -StoreLocation LocalMachine |Get-CertificatePermissions
Returns the permissions for the certificate.

.EXAMPLE
$c = Find-Certificate.ps1 ExampleCert FindBySubjectName TrustedPeople LocalMachine ; Get-CertificatePermissions.ps1 $c
Another approach to get cert permissions.
#>

#Requires -Version 3
[CmdletBinding()][OutputType([Security.AccessControl.FileSecurity])] Param(
# The certificate to display permissions for.
[Parameter(Position=0,Mandatory=$true,ValueFromPipeline=$true)]
[System.Security.Cryptography.X509Certificates.X509Certificate2]$Certificate
)
Begin{try{Get-Command Get-Acl -CommandType Cmdlet -ErrorAction Ignore |Out-Null}catch{throw 'The Get-Acl command is missing.'}}
Process
{
    $path = Get-CertificatePath.ps1 $Certificate
    if($path -and (Test-Path $path -PathType Leaf)) {Get-Acl $path |ForEach-Object Access}
}