Java

Create JWT Using Ed25519 Private Key (EdDSA)

See more JSON Web Token (JWT) Examples

Demonstrates how to create a JWT using an Ed25519 private key. If the private key is Ed25519, which is an EdDSA algorithm, the JOSE header's "alg" member should be set to "EdDSA".

Note: This example requires Chilkat v9.5.0.95 or greater.

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.JsonObject;
import com.chilkatsoft.chilkat2.Jwt;
import com.chilkatsoft.chilkat2.PrivateKey;

public class ChilkatExample {

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

        // Demonstrates how to create a JWT using an Ed25519 private key.

        PrivateKey privKey = new PrivateKey();

        // Load an Ed25519 (EdDSA) private key from a PEM file.
        try {
            privKey.loadPemFile("qa_data/eddsa/ed25519.pem");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        Jwt jwt = new Jwt();

        // Build the JOSE header
        JsonObject jose = new JsonObject();

        // -----------------------------------------------------------------
        // Note: This example requires Chilkat v9.5.0.95 or greater.
        // -----------------------------------------------------------------
        jose.appendString("alg", "EdDSA");
        jose.appendString("typ", "JWT");

        // Now build the JWT claims (also known as the payload)
        JsonObject claims = new JsonObject();
        claims.appendString("iss", "http://example.org");
        claims.appendString("sub", "John");
        claims.appendString("aud", "http://example.com");

        // (optional) Set the timestamp of when the JWT was created to now.
        int curDateTime = jwt.genNumericDate(0);
        claims.addIntAt(-1, "iat", curDateTime);

        // (optional)  Set the "not process before" timestamp to now.
        claims.addIntAt(-1, "nbf", curDateTime);

        // (optional)  Set the timestamp defining an expiration time (end time) for the token
        // to be now + 1 hour (3600 seconds)
        claims.addIntAt(-1, "exp", curDateTime + 3600);

        // Produce the smallest possible JWT:
        jwt.setAutoCompact(true);

        // Create the JWT token.
        String token = jwt.createJwtPk(jose.emit(), claims.emit(), privKey);

        System.out.println(token);

        // Example output:
        // eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJodHRwOi8vZXhhbXBsZS5vcmciLCJzdWIiOiJKb2huIiwiYXVkIjoiaHR0cDovL2V4YW1wbGUuY29tIiwiaWF0IjoxNjg3OTcwNjgyLCJuYmYiOjE2ODc5NzA2ODIsImV4cCI6MTY4Nzk3NDI4Mn0.eyfrDJfuWJSJVJPfAUYb_p_c-LF_YULHGRaZx82MLLjMLCCFEEGckp8icuayf5bLW9ah20LzYYt0JgOBIB0RDg
    }
}