Sample code for 30+ languages & platforms
Swift

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 Swift Downloads

Swift

func chilkatTest() {
    var success: Bool = false

    let socket = CkoSocket()!

    //  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.
    var pfxPassword: String? = "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(pfxPath: "qa_data/client.pfx", pfxPassword: pfxPassword)
    if success == false {
        print("\(socket.lastErrorText!)")
        return
    }

    var bTls: Bool = true
    var maxWaitMs: Int = 5000
    success = socket.connect(hostname: "example.com", port: 5000, ssl: bTls, maxWaitMs: maxWaitMs)
    if success == false {
        print("\(socket.lastErrorText!)")
        return
    }

    print("Connected with mutual TLS.")

}