(PowerShell) Get Certificate Subject Part by Name or OID

Demonstrates the GetSubjectPart method where a name or OID can be passed.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

$cert = New-Object Chilkat.Cert

$success = $cert.LoadByCommonName("myCert")
if ($success -eq $false) {
    $($cert.LastErrorText)
    exit
}

# This example demonstrates getting the SERIALNUMBER part of the subject,
# if one such part exists in the cert's subject.
# Not too many certicates include the serial number in the Subject.
# (Chilean issued certificates for SII is one such case where the SERIALNUMBER part exists within the Subject.)
$serialNum = $cert.GetSubjectPart("SERIALNUMBER")
if ($cert.LastMethodSuccess -eq $false) {
    $("No SERIALNUMBER part exists.")
    exit
}

$($serialNum)

# We could also get the part by the OID.
# See https://oidref.com/2.5.4.5 for a list of OID's in the 2.5.4.* range..
# The OID for SERIALNUMBER is "2.5.4.5"
$serialNum = $cert.GetSubjectPart("2.5.4.5")
if ($cert.LastMethodSuccess -eq $false) {
    $("No SERIALNUMBER part exists.")
    exit
}

$($serialNum)