(Java) Find Certificate by Email Address

Locate the certificate containing the specified email address in either the RFC822 Name or the Subject.

Note: This example requires Chilkat v10.1.2 or later.

Chilkat Java Downloads Java Libs for Windows, MacOS, Linux, Alpine Linux 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[])
  {
    CkCertStore certStore = new CkCertStore();

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

    // Locate the certificate containing the specified email address in either the RFC822 Name or the Subject.
    CkJsonObject json = new CkJsonObject();
    String email_address = "harold@example.com";
    json.UpdateString("email",email_address);

    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.");
        }
  }
}