Java

DSA Public Key PEM to DER Conversion

See more DSA Examples

Converts a DSA public key from PEM format to DER. 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;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkDsa dsa = new CkDsa();

    // Load a PEM public key.
    String pemPublicKey;
    pemPublicKey = dsa.loadText("dsa_pub.pem");
    // Import the public key PEM into the DSA object.
    success = dsa.FromPublicPem(pemPublicKey);
    if (success != true) {
        System.out.println(dsa.lastErrorText());
        return;
        }

    // Write it out as a DER file:
    success = dsa.ToPublicDerFile("dsa_pub.der");
    if (success != true) {
        System.out.println(dsa.lastErrorText());
        return;
        }

    System.out.println("Finished!");
  }
}