Get a Received Client Certificate (Server Side)

See more Socket/SSL/TLS Examples

Demonstrates Socket.GetRcvdClientCert, which copies a client certificate presented during the TLS handshake of an accepted server-side connection into a Cert object.

The file path is relative to the application's current working directory. An absolute path may also be used. Supply the path appropriate to your own environment.

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

success = 0

set socket = CreateObject("Chilkat.Socket")

'  The file path is relative to the application's current working directory.  An absolute path
'  may also be used.  Supply the path appropriate to your own environment.
'  The PFX password should come from a secure source rather than being hard-coded.
pfxPassword = "myPfxPassword"
set cert = CreateObject("Chilkat.Cert")
success = cert.LoadPfxFile("qa_data/server.pfx",pfxPassword)
If (success = 0) Then
    outFile.WriteLine(cert.LastErrorText)
    WScript.Quit
End If

success = socket.InitSslServer(cert)
If (success = 0) Then
    outFile.WriteLine(socket.LastErrorText)
    WScript.Quit
End If

success = socket.BindAndListen(5000,25)
If (success = 0) Then
    outFile.WriteLine(socket.LastErrorText)
    WScript.Quit
End If

'  Accept a client connection.  The accepted connection carries any client certificate presented
'  during the TLS handshake.
set connectedSock = CreateObject("Chilkat.Socket")
success = socket.AcceptNext(20000,connectedSock)
If (success = 0) Then
    outFile.WriteLine(socket.LastErrorText)
    WScript.Quit
End If

'  Copy each received client certificate and inspect it.
numClientCerts = connectedSock.NumReceivedClientCerts
set clientCert = CreateObject("Chilkat.Cert")

For i = 0 To numClientCerts - 1
    success = connectedSock.GetRcvdClientCert(i,clientCert)
    If (success = 0) Then
        outFile.WriteLine(connectedSock.LastErrorText)
        WScript.Quit
    End If

    outFile.WriteLine("Client certificate subject: " & clientCert.SubjectCN)
Next

outFile.Close