Java

Use HTTPS Client Certificate from .cer and .key Files

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Demonstrates how to load a cert + private key from .cer and .key (base64) files and use it for mutual TLS authentication (client-side certificate). Chilkat2 Java

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

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();

        Cert cert = new Cert();
        PrivateKey privKey = new PrivateKey();

        // Load any type of certificate (.cer, .p7b, .pem, etc.) by calling LoadFromFile.
        try {
            cert.loadFromFile("qa_data/certs/sample_cert_a.cer");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Load the private key.
        BinData bd = new BinData();
        bd.loadFile("qa_data/certs/sample_key_a.key");
        try {
            privKey.loadAnyFormat(bd, "privateKeyPasswordIfNecessary");

            // Associate the private key with the cert.
            cert.setPrivateKey(privKey);

            // Set the certificate to be used for mutual TLS authentication
            // (i.e. sets the client-side certificate for two-way TLS authentication)
            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.
    }
}