(Lianja) Socket TLS Mutual Authentication (Client-Side Certificate)

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.

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

loSock = createobject("CkSocket")

// Set the certificate to be used for mutual TLS authentication
// (i.e. sets the client-side certificate for two-way TLS authentication)
llSuccess = loSock.SetSslClientCertPfx("/home/bob/pfxFiles/myClientSideCertWithPrivateKey.pfx","pfxPassword")
if (llSuccess <> .T.) then
    ? loSock.LastErrorText
    release loSock
    return
endif

// 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).
llBTls = .T.
lnPort = 443
lnMaxWaitMs = 5000
llSuccess = loSock.Connect("www.example.com",lnPort,llBTls,lnMaxWaitMs)
if (llSuccess <> .T.) then
    ? "Connect Failure Error Code: " + str(loSock.ConnectFailReason)
    ? loSock.LastErrorText
    release loSock
    return
endif

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

// ...
// ..


release loSock