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(Classic ASP) Get the Server Certificate, Certificate Chain, and Root CA CertificateDemonstrates how to get the HTTP server certificate, its certificate chain, and the root CA certificate. Note: This example requires Chilkat v11.0.0 or greater.
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <% success = 0 ' This example assumes the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. set http = Server.CreateObject("Chilkat.Http") ' We're getting the SSL/TLS certificate, so make sure to connect to the SSL/TLS port (443). set sslCert = Server.CreateObject("Chilkat.Cert") success = http.GetServerCert("apple.com",443,sslCert) If (success = 0) Then Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>" Response.End End If set certChain = Server.CreateObject("Chilkat.CertChain") success = sslCert.BuildCertChain(certChain) If (success = 0) Then Response.Write "<pre>" & Server.HTMLEncode( sslCert.LastErrorText) & "</pre>" Response.End End If set cert = Server.CreateObject("Chilkat.Cert") i = 0 numCerts = certChain.NumCerts Do While i < numCerts success = certChain.CertAt(i,cert) Response.Write "<pre>" & Server.HTMLEncode( "SubjectDN " & i & ": " & cert.SubjectDN) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( "IssuerDN " & i & ": " & cert.IssuerDN) & "</pre>" i = i + 1 Loop ' If the certificate chain reaches the root CA cert, then the last cert in the chain ' is the root CA cert. If (certChain.ReachesRoot = 1) Then set caCert = Server.CreateObject("Chilkat.Cert") success = certChain.CertAt(numCerts - 1,caCert) Response.Write "<pre>" & Server.HTMLEncode( "CA Root Cert: " & caCert.SubjectDN) & "</pre>" End If %> </body> </html> |
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