Using different credetial to connect to remote computer to get Cert information

Question

I am using following function to get cert details from remote computers. How do I change it to accept credentials to connect to remote computer?
PS : Remote computers are windows 2003 computers without PowerShell installed on it.
function Get-Cert( $computer=$env:computername ){    $ro=[System.Security.Cryptography.X509Certificates.OpenFlags]"ReadOnly"    $lm=[System.Security.Cryptography.X509Certificates.StoreLocation]"LocalMachine"    $store=new-object System.Security.Cryptography.X509Certificates.X509Store("\\$computer\my",$lm)    $store.Open($ro)    $store.Certificates}Get-Cert ServerA
-Edatha-

Answer 1

Certainly.  Here's a quick example that uses the PowerShell registry provider as a quick an easy way to enumerate the subkeys of HKLM\Software\Microsoft\SystemCertificates\MY\Certificates\ , and to read the Blob value as a byte array.  In your
case, you'd probably want to look into using something like WMI's StdRegProv class to accomplish the same thing.
Once you have the byte array, just pass it to the constructor of X509Certificate2.  (Note the unary comma in that constructor call; we're binding an object to the -ArgumentList parameter of New-Object, and when you're calling constructors that take
a single array argument, you need the comma.)
Get-ChildItem HKLM:\SOFTWARE\Microsoft\SystemCertificates\MY\Certificates |
ForEach-Object {
$byteArray = (Get-ItemProperty -Path $_.PSPath -Name Blob).Blob
$certificate = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2(,$byteArray)
$certificate