Set the Optional JWS Unprotected Header

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.SetUnprotectedHeader, which sets the optional unprotected header for a signature.

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    var jws = new chilkat.Jws();

    //  Protected header specifying HMAC-SHA256.
    var header = new chilkat.JsonObject();
    header.UpdateString("alg","HS256");
    success = jws.SetProtectedHeader(0,header);
    if (success == false) {
        console.log(jws.LastErrorText);
        return;
    }

    //  Set the optional unprotected header for signature 0.  Unlike the protected header, it is not
    //  covered by the signature.  It is carried in the JSON serialization forms of a JWS.
    var unprotected = new chilkat.JsonObject();
    unprotected.UpdateString("kid","signer-key-1");
    success = jws.SetUnprotectedHeader(0,unprotected);
    if (success == false) {
        console.log(jws.LastErrorText);
        return;
    }

    var bIncludeBom = false;
    success = jws.SetPayload("This is the content to sign.","utf-8",bIncludeBom);
    if (success == false) {
        console.log(jws.LastErrorText);
        return;
    }

    var base64Key = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU=";
    success = jws.SetMacKey(0,base64Key,"base64");
    if (success == false) {
        console.log(jws.LastErrorText);
        return;
    }

    //  Because an unprotected header is present, the JWS is produced in a JSON serialization form.
    var jwsJson = jws.CreateJws();
    if (jws.LastMethodSuccess == false) {
        console.log(jws.LastErrorText);
        return;
    }

    console.log(jwsJson);

}

chilkatExample();