Java Requires Chilkat v10.1.2+

Secure FTP with Client Certificate

See more FTP Examples

Chilkat FTP2 provides the ability to use a client certificate with secure FTP (implicit or explicit SSL/TLS). This example demonstrates how to load a certificate from a .pfx and use it as the client-side SSL cert. Note: Client-side certificates are only needed in situations where the server demands one. Chilkat2 Java

import com.chilkatsoft.chilkat2.Cert;
import com.chilkatsoft.chilkat2.CertStore;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Ftp2;
import com.chilkatsoft.chilkat2.JsonObject;

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.

        Ftp2 ftp = new Ftp2();

        ftp.setHostname("ftp.example.com");
        ftp.setPort(21);
        ftp.setUsername("test");
        ftp.setPassword("test");

        // This example will use explict TLS/SSL.
        // Establish an explicit secure channel after connection
        // on the standard FTP port 21.
        ftp.setAuthTls(true);

        // The Ssl property is for establishing an implicit SSL connection
        // on port 990.  Because this example uses explicit SSL, it
        // should remain false.
        ftp.setSsl(false);

        // Load a certificate from a .pfx
        // A PFX may contain several certs, including the certificates
        // in a chain of authority.
        CertStore certStore = new CertStore();
        String password = "***";
        // Load the certs from a PFX into an in-memory certificate store:
        try {
            certStore.loadPfxFile("chilkat.pfx", password);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Find the desired certificate.
        JsonObject jsonCN = new JsonObject();
        jsonCN.updateString("CN", "cert common name");

        Cert cert = new Cert();
        try {
            certStore.findCert(jsonCN, cert);
        } catch (ChilkatException e) {
            System.out.println("Certificate not found!");
            return;
        }

        // Use this certificate for our secure (SSL/TLS) connection:
        ftp.setSslClientCert(cert);

        // Connect and login to the FTP server.  The connection is
        // made secure because of the AuthTls setting.
        try {
            ftp.connect();
            // LastErrorText contains information even when
            // successful. This allows you to visually verify
            // that the secure connection actually occurred.
            System.out.println(ftp.getLastErrorText());
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Secure FTP Channel Established!");

        // Do whatever you're doing to do ...
        // upload files, download files, etc...

        // .....
        // .....

        ftp.disconnect();
    }
}