Classic ASP

Get Issuer Certificate Information

See more Certificates Examples

A certificate contains information about its issuer. This example demonstrates how to get the issuer information from a certificate. 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/sample.cer")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( cert.LastErrorText) & "</pre>"
    Response.End
End If

'  Get issuer information:

'  -----------------------------------------------------------------------
'  (Not all subject fields may exist depending on the issuer certificate.)
'  -----------------------------------------------------------------------

'  Issuer DN (Distinguished Name, i.e. all the Issuer subject parts)
Response.Write "<pre>" & Server.HTMLEncode( "DN: " & cert.IssuerDN) & "</pre>"

'  Common Subject parts:
'  Issuer Common Name
Response.Write "<pre>" & Server.HTMLEncode( "CN: " & cert.IssuerCN) & "</pre>"

'  Issuer Country
Response.Write "<pre>" & Server.HTMLEncode( "C: " & cert.IssuerC) & "</pre>"

'  Issuer Email address
Response.Write "<pre>" & Server.HTMLEncode( "E: " & cert.IssuerE) & "</pre>"

'  Issuer Locality
Response.Write "<pre>" & Server.HTMLEncode( "L: " & cert.IssuerL) & "</pre>"

'  Issuer Organization
Response.Write "<pre>" & Server.HTMLEncode( "O: " & cert.IssuerO) & "</pre>"

'  Issuer Organizational Unit
Response.Write "<pre>" & Server.HTMLEncode( "OU: " & cert.IssuerOU) & "</pre>"

'  Issuer State
Response.Write "<pre>" & Server.HTMLEncode( "S: " & cert.IssuerS) & "</pre>"

%>
</body>
</html>