(Java) Find Certificate by Subject OU (Organizational Unit)

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Demonstrates how to find a certificate having the specified subject organizational unit (OU).

Note: Requires Chilkat v10.1.2 or later.

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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[])
  {
    CkCertStore certStore = new CkCertStore();

    // This opens the Current User certificate store on Windows,
    // On MacOS and iOS it opens the default Keychain.
    boolean readOnly = false;
    boolean success = certStore.OpenCurrentUserStore(readOnly);
    if (success == false) {
        System.out.println(certStore.lastErrorText());
        return;
        }

    // Find the certificate having a Subject OU = "Secretaria da Receita Federal do Brasil - RFB".
    CkJsonObject json = new CkJsonObject();
    String ou = "Secretaria da Receita Federal do Brasil - RFB";
    json.UpdateString("OU",ou);

    CkCert cert = new CkCert();
    success = certStore.FindCert(json,cert);
    if (success == true) {
        // Show the full distinguished name of the certificate.
        System.out.println("Found: " + cert.subjectDN());
        }
    else {
        System.out.println("Not found.");
        }
  }
}