Java

Load Base64-encoded X.509 Certificate (.cer)

See more Certificates Examples

Loads a digital certificate from a base64 encoded DER X.509 Certificate (.cer, .crt) and fetches information about the cert. Java

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[])
  {
    boolean success = false;

    CkCert cert = new CkCert();

    // LoadFromFile will load virtually any certificate format file.
    // It will auto-recognize the format and load appropiately.
    // A base64-encoded DER X.509 certificate file
    // contains the binary DER in base64 encoded form.
    // Therefore, it is a text file that will begin like this:
    // -----BEGIN CERTIFICATE-----
    // MIIFbjCCBFagAwIBAgIGdDPNv/L0MA0GCSqGSIb3DQEBBQUAMIHKMQswCQYDVQQG
    // EwJVUzEQMA4GA1UECBMHQXJpem9uYTETMBEGA1UEBxMKU2NvdHRzZGFsZTEaMBgG
    // ...

    success = cert.LoadFromFile("/Users/chilkat/testData/cer/chilkat_base64.cer");
    if (success != true) {
        System.out.println(cert.lastErrorText());
        return;
        }

    // DN = "Distinguished Name"
    System.out.println("SubjectDN:" + cert.subjectDN());

    System.out.println("Common Name:" + cert.subjectCN());
    System.out.println("Issuer Common Name:" + cert.issuerCN());

    System.out.println("Serial Number:" + cert.serialNumber());
  }
}