Java

Load an Ed25519 Private Key from Hex

See more Ed25519 Examples

Demonstrates how to load an Ed25519 private key from raw hex bytes.

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

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.PrivateKey;
import com.chilkatsoft.chilkat2.StringBuilder;

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.

        PrivateKey privKey = new PrivateKey();

        // We have the hexidecimal encoded bytes of the private key and public key:
        String privKeyHex = "d4ee72dbf913584ad5b6d8f1f769f8ad3afe7c28cbf1d4fbe097a88f44755842";
        String pubKeyHex = "19bf44096984cdfe8541bac167dc3b96c85086aa30b6b6cb0c5c38ad703166e1";

        // Load these values into the Chilkat private key object:
        try {
            privKey.loadEd25519(privKeyHex, pubKeyHex);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // ---------------------------------------------------------------
        // We don't actually need the public key.  If we pass an empty string for the public key,
        // Chilkat will automatically compute it.
        PrivateKey privKey2 = new PrivateKey();
        privKey2.loadEd25519(privKeyHex, "");

        // Let's get the public key to see that it computed the same value.
        StringBuilder sbPubKeyHex = new StringBuilder();
        privKeyHex = privKey2.getRawHex(sbPubKeyHex);
        System.out.println("computed public key = " + sbPubKeyHex.getAsString());

        // The output should be:
        // computed public key = 19bf44096984cdfe8541bac167dc3b96c85086aa30b6b6cb0c5c38ad703166e1
    }
}