(VBScript) Subject Alternative Name for ICP Brasil Certs

Demonstrates how to access the multiple names contained in the Subject Alternative Name of a certificate. This example is for an ICP Brasil certificate.

For more information, see http://oidref.com/2.16.76.1.3

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Cert")
set cert = CreateObject("Chilkat.Cert")

success = cert.LoadFromFile("qa_data/certs/testIcpBrasil.cer")
If (success = 0) Then
    outFile.WriteLine(cert.LastErrorText)
    WScript.Quit
End If

' If the cert's Subject Alternative Name contains multiple values, each specified by an OID,
' then the Rfc822Name property returns XML.
subjectAltNameXml = cert.Rfc822Name

outFile.WriteLine(subjectAltNameXml)

' Here's a sample of the subjectAltNameXml:

' <SubjectAltName>
'     <name type="oid" oid="2.16.76.1.3.4">290999653223955019700000000000000000000150424SRJUXPTS</name>
'     <name type="oid" oid="2.16.76.1.3.2">JOAO SILVA</name>
'     <name type="oid" oid="2.16.76.1.3.3">02408939000115</name>
'     <name type="oid" oid="2.16.76.1.3.7">000000000000</name>
' </SubjectAltName>

' The XML can be parsed like this:

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Xml")
set xml = CreateObject("Chilkat.Xml")
success = xml.LoadXml(subjectAltNameXml)

i = 0
count_i = xml.NumChildrenHavingTag("name")
Do While i < count_i
    xml.I = i
    oid = xml.ChilkatPath("name[i]|(oid)")
    name = xml.GetChildContent("name[i]")
    outFile.WriteLine(oid & ": " & name)
    i = i + 1
Loop

outFile.Close