Verify SSL Server Certificate

Demonstrates how to connect to an SSL server and verify its SSL certificate.

Download Chilkat Socket ActiveX

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
Set outFile = fso.CreateTextFile("output.txt", True)

set socket = CreateObject("Chilkat.Socket")

success = socket.UnlockComponent("Anything for 30-day trial")
If (success <> 1) Then
    MsgBox "Failed to unlock component"
    WScript.Quit
End If

ssl = 1
maxWaitMillisec = 20000

'  The SSL server hostname may be an IP address, a domain name,
'  or "localhost".

sslServerHost = "www.paypal.com"
sslServerPort = 443

'  Connect to the SSL server:
success = socket.Connect(sslServerHost,sslServerPort,ssl,maxWaitMillisec)
If (success <> 1) Then
    MsgBox socket.LastErrorText
    WScript.Quit
End If

Set cert = socket.GetSslServerCert()
If (Not (cert Is Nothing )) Then

    outFile.WriteLine("Server Certificate:")
    outFile.WriteLine("Distinguished Name: " _
         & cert.SubjectDN)
    outFile.WriteLine("Common Name: " & cert.SubjectCN)
    outFile.WriteLine("Issuer Distinguished Name: " _
         & cert.IssuerDN)
    outFile.WriteLine("Issuer Common Name: " _
         & cert.IssuerCN)

    bExpired = cert.IsExpired()
    bRevoked = cert.Revoked
    bSignatureVerified = cert.SignatureVerified
    bTrustedRoot = cert.TrustedRoot

    outFile.WriteLine("Expired: " & bExpired)
    outFile.WriteLine("Revoked: " & bRevoked)
    outFile.WriteLine("Signature Verified: " _
         & bSignatureVerified)
    outFile.WriteLine("Trusted Root: " & bTrustedRoot)

End If

'  Close the connection with the server
'  Wait a max of 20 seconds (20000 millsec)
socket.Close 20000


outFile.Close