Java

Generate an ECDSA Key

See more ECC Examples

Demonstrates how to generate an ECDSA key. 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 requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // Create a Fortuna PRNG and seed it with system entropy.
    // This will be our source of random data for generating the ECC private key.
    CkPrng fortuna = new CkPrng();
    String entropy = fortuna.getEntropy(32,"base64");
    success = fortuna.AddEntropy(entropy,"base64");

    CkEcc ecc = new CkEcc();

    // Generate a random ECC private key on the secp256r1 curve.
    // Chilkat also supports other curves, such as secp384r1, secp521r1, and secp256k1.

    CkPrivateKey privKey = new CkPrivateKey();
    success = ecc.GenKey("secp256r1",fortuna,privKey);
    if (success == false) {
        System.out.println(ecc.lastErrorText());
        return;
        }

    System.out.println(privKey.getXml());

    // Save the private key to PKCS8 encrypted PEM
    // (The private key can be saved in a variety of different formats. See the online reference documentation.)
    success = privKey.SavePkcs8EncryptedPemFile("pemPassword","myPemFiles/eccKey123.pem");
    if (success != true) {
        System.out.println(privKey.lastErrorText());
        }

    System.out.println("finished.");
  }
}