Classic ASP

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.

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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

set cert = Server.CreateObject("Chilkat.Cert")

success = cert.LoadFromFile("qa_data/certs/testIcpBrasil.cer")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( cert.LastErrorText) & "</pre>"
    Response.End
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

Response.Write "<pre>" & Server.HTMLEncode( subjectAltNameXml) & "</pre>"

' 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:

set xml = Server.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]")
    Response.Write "<pre>" & Server.HTMLEncode( oid & ": " & name) & "</pre>"
    i = i + 1
Loop

%>
</body>
</html>