Xojo Plugin

Socket TLS Mutual Authentication (Client-Side Certificate)

See more Socket/SSL/TLS Examples

This example demonstrates how to provide a client-side certificate, also known as "two-way authentication" or "mutual authentication" for servers that require a client certificate. Xojo Plugin

Dim success As Boolean
success = False

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Dim sock As New Chilkat.Socket

// Set the certificate to be used for mutual TLS authentication
// (i.e. sets the client-side certificate for two-way TLS authentication)
success = sock.SetSslClientCertPfx("/home/bob/pfxFiles/myClientSideCertWithPrivateKey.pfx","pfxPassword")
If (success <> True) Then
    System.DebugLog(sock.LastErrorText)
    Return
End If

// Note: The certificate used for the client-side of TLS mutual authentication
// must have the associated private key available. (.pfx/.p12 files typically store both
// the certificate and associated private key.)

// Establish the connection using the socket object (with client certificate authentication).
Dim bTls As Boolean
bTls = True
Dim port As Int32
port = 443
Dim maxWaitMs As Int32
maxWaitMs = 5000
success = sock.Connect("www.example.com",port,bTls,maxWaitMs)
If (success <> True) Then
    System.DebugLog("Connect Failure Error Code: " + Str(sock.ConnectFailReason))
    System.DebugLog(sock.LastErrorText)
    Return
End If

// At this point, the Socket object is connected and authenticated using the client-side cert

// ...
// ..