Java

Use Installed Cert on Windows for TLS Client Authentication

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Demonstrates how to use a certificate that has already been installed on a Windows PC for TLS client authentication. Chilkat2 Java

import com.chilkatsoft.chilkat2.Cert;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Http;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        Http http = new Http();

        // On Windows, a pre-installed certificate can be loaded in a number of different ways.
        // This example loads by the common name:
        Cert cert = new Cert();
        try {
            cert.loadByCommonName("My ECA Medium Assurance Identity Certificate");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Make sure this certificate has a private key available.
        // It should be a private key such that when the certificate was installed, it was marked as "exportable"
        // so that authorized programs are able to access the private key.
        if (!cert.hasPrivateKey()) {
            System.out.println("A private key is needed for TLS client authentication.");
            System.out.println("This certificate has no private key.");
            return;
        }

        // Set the certificate to be used for mutual TLS authentication
        // (i.e. sets the client-side certificate for two-way TLS authentication)
        try {
            http.setSslClientCert(cert);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

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