DataFlex

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.

DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoHttp
    String sTemp1

    Move False To iSuccess

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

    Get Create (RefClass(cComChilkatHttp)) To hoHttp
    If (Not(IsComObjectCreated(hoHttp))) Begin
        Send CreateComObject of hoHttp
    End

    // Set the certificate to be used for mutual TLS authentication
    // (i.e. sets the client-side certificate for two-way TLS authentication)
    Get ComSetSslClientCertPfx Of hoHttp "/home/bob/pfxFiles/myClientSideCertWithPrivateKey.pfx" "pfxPassword" To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // 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


End_Procedure