B4X

HTTP TLS Mutual Authentication (Client-Side Certificate)

See more HTTP Examples

This example demonstrates what to do when a TLS connection requires a client-side certificate, also known as "two-way authentication" or "mutual authentication". The Chilkat API provides a few standard methods for setting the client-side certificate:

• SetSslClientCert
• SetSslClientPem
• SetSslClientPfx

These methods are present in any Chilkat class that has SSL/TLS functionality. When the SSL client cert is set via one of these methods, it tells the API to use it for two-way (i.e. mutual) authentication. In all possible tasks, whether it is a POST, GET, PUT, an Amazon S3 method, etc., the only thing required for implementing the two-way authentication is to make a successful call to one of the above SetSsl* methods.

B4X

Dim success As Boolean = False

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

Dim http As ChilkatHttp
http.Initialize("http")

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


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

'  At this point, the HTTP object is setup with the client-side cert, and any SSL/TLS
'  connection will automatically use it if the server demands a client-side cert.