Create a JWS into a StringBuilder

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.CreateJwsSb, which creates a JWS and writes it into a StringBuilder.

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;

    CkJws jws = new CkJws();

    //  Set the protected header for signer 0, specifying the signature algorithm (alg).
    CkJsonObject header = new CkJsonObject();
    header.UpdateString("alg","HS256");
    success = jws.SetProtectedHeader(0,header);
    if (success == false) {
        System.out.println(jws.lastErrorText());
        return;
        }

    //  Set the payload to be signed.
    boolean bIncludeBom = false;
    success = jws.SetPayload("This is the content to sign.","utf-8",bIncludeBom);
    if (success == false) {
        System.out.println(jws.lastErrorText());
        return;
        }

    //  Provide the HMAC key (base64) for signer 0.  In production, obtain the key from a secure source
    //  rather than hard-coding it.
    String base64Key = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU=";
    success = jws.SetMacKey(0,base64Key,"base64");
    if (success == false) {
        System.out.println(jws.lastErrorText());
        return;
        }

    //  Create the JWS and write it into a StringBuilder.
    CkStringBuilder sbJws = new CkStringBuilder();
    success = jws.CreateJwsSb(sbJws);
    if (success == false) {
        System.out.println(jws.lastErrorText());
        return;
        }

    System.out.println(sbJws.getAsString());
  }
}