How do I call New-Object for a constructor which takes a single array parameter?

Question

In PowerShell, I want to use New-Object to call a single-argument .Net constructor new X509Certificate2(byte[] byteArray). The problem is when I do

Answer 1

Surprisingly to me, I tried this and it seems it works:

[byte[]] $certPublicBytes = something
$cert = [System.Security.Cryptography.X509Certificates.X509Certificate] $certPublicBytes
return $cert

I don't yet know by what magic it works, so your explanatory comments are appreciated. :)

(Note: I since found that using square-brackets-type-name as I did above, can also lead to other errors, such as 'Cannot convert value "System.Byte[]" to type "System.Security.Cryptography.X509Certificates.X509Certificate". Error: "Cannot find the requested object.' The explicit New-Object approach recommended by Keith seems better!)