Sample code for 30+ languages & platforms
VBScript

Set a TLS Client Certificate from a PFX

See more Socket/SSL/TLS Examples

Demonstrates Socket.SetSslClientCertPfx, which loads and configures a TLS client certificate and private key from a PFX/P12 file.

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.

Background. Configure the client certificate before connecting. Use client certificates only when the server requests or requires client-certificate authentication (mutual TLS).

Chilkat VBScript Downloads

VBScript
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"

'  Load and configure the TLS client certificate and private key from a PFX/P12 file.  Configure the
'  client certificate before connecting.
success = socket.SetSslClientCertPfx("qa_data/client.pfx",pfxPassword)
If (success = 0) Then
    outFile.WriteLine(socket.LastErrorText)
    WScript.Quit
End If

bTls = 1
maxWaitMs = 5000
success = socket.Connect("example.com",5000,bTls,maxWaitMs)
If (success = 0) Then
    outFile.WriteLine(socket.LastErrorText)
    WScript.Quit
End If

outFile.WriteLine("Connected with mutual TLS.")

outFile.Close