(Java) Find a Certificate by it's SHA-1 Thumbprint

See more Cert Store Examples

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();

    String thumbprint = "12c1dd8015f3f03f7b1fa619dc24e2493ca8b4b2";

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

    // Find the certificate having a specific SHA1 thumbprint.
    CkJsonObject json = new CkJsonObject();
    json.UpdateString("thumbprint",thumbprint);

    CkCert cert = new CkCert();
    success = certStore.FindCert(json,cert);
    if (success == false) {
        System.out.println("Failed to find the certificate.");
        return;
        }

    System.out.println("Found: " + cert.subjectCN());

    // -------------------------------------------------------------------------------------
    // Alternatively, one could load a certificate store object with certs from a PEM file,
    // and do the same thing..
    CkCertStore certStorePem = new CkCertStore();

    success = certStorePem.LoadPemFile("pemFiles/certificates.pem");
    if (success == false) {
        System.out.println(certStorePem.lastErrorText());
        return;
        }

    success = certStore.FindCert(json,cert);
    if (success == false) {
        System.out.println("Failed to find the certificate.");
        return;
        }

    System.out.println("Found: " + cert.subjectCN());
  }
}