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(Java) SFTP use Cert's Private Key from PFX (.pfx/.p12)

Demonstrates how to use the private key associated with a certificate from a .pfx/.p12 file.

Chilkat Java Downloads

Java Libs for Windows, MacOS, Linux, Alpine Linux, Solaris

Java Libs for Android

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

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

    CkCert cert = new CkCert();

    String pfxFilepath = "qa_data/pfx/my.pfx";
    String pfxPassword = "secret";

    // A PFX typically contains certificates in the chain of authentication.
    // The Chilkat cert object will choose the certificate w/
    // private key farthest from the root authority cert.
    // To access all the certificates in a PFX, use the 
    // Chilkat certificate store object instead.
    boolean success = cert.LoadPfxFile(pfxFilepath,pfxPassword);
    if (success != true) {
        System.out.println(cert.lastErrorText());
        return;
        }

    // Get the private key.  
    CkPrivateKey privKey = cert.ExportPrivateKey();
    if (cert.get_LastMethodSuccess() == false) {
        System.out.println(cert.lastErrorText());
        return;
        }

    String privKeyPem = privKey.getPkcs8Pem();
    if (privKey.get_LastMethodSuccess() == false) {
        System.out.println(privKey.lastErrorText());
        return;
        }

    CkSshKey sshKey = new CkSshKey();
    success = sshKey.FromOpenSshPrivateKey(privKeyPem);
    if (success == false) {
        System.out.println(sshKey.lastErrorText());
        return;
        }

    // Connect to an SSH/SFTP server
    CkSFtp sftp = new CkSFtp();
    success = sftp.Connect("sftp.example.com",22);
    if (success == false) {
        System.out.println(sftp.lastErrorText());
        return;
        }

    // Authenticate with the SSH server using a username + private key.
    // (The private key serves as the password.  The username identifies
    // the SSH user account on the server.)
    success = sftp.AuthenticatePk("mySshLogin",sshKey);
    if (success == false) {
        System.out.println(sftp.lastErrorText());
        return;
        }

    System.out.println("OK, the connection and authentication with the SSH server is completed.");

    // This example is only to show the connection + authentication using a private key associated with a certificate in the Windows certificate store...
  }
}

 

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