Java

Generate an Ed25519 Key Pair

See more Ed25519 Examples

Demonstrates how to generate a new Ed25519 public/private key pair.

Note: This example requires Chilkat v9.5.0.83 or greater.

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.EdDSA;
import com.chilkatsoft.chilkat2.JsonObject;
import com.chilkatsoft.chilkat2.PrivateKey;
import com.chilkatsoft.chilkat2.Prng;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example assumes the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        EdDSA eddsa = new EdDSA();
        Prng prng = new Prng();
        PrivateKey privKey = new PrivateKey();

        // Generates a new eddsa key and stores it in privKey.
        try {
            eddsa.genEd25519Key(prng, privKey);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Examine the ed25519 key in JWK format;
        String jwk = privKey.getJwk();

        JsonObject json = new JsonObject();
        json.load(jwk);
        json.setEmitCompact(false);
        System.out.println(json.emit());

        // Sample output:
        // {
        //   "kty": "OKP",
        //   "crv": "Ed25519",
        //   "x": "SE2Kne5xt51z1eciMH2T2ftDQp96Gl6FhY6zSQujiP0",
        //   "d": "O-eRXewadF0sNyB0U9omcnt8Qg2ZmeK3WSXPYgqe570",
        //   "use": "sig"
        // }

        // In the above JWK, x is the public key, y is the private key.
        // Both are 32 bytes and are base64-url encoded.
    }
}