Sign a JWS with an HMAC Key from BinData

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.SetMacKeyBd, which sets the symmetric MAC key for a signature from the raw bytes in a BinData.

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;
    }

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

    //  Set the symmetric MAC key for signature 0 from the raw bytes in a BinData.  In production, obtain
    //  the key material from a secure source.
    var bdKey = new chilkat.BinData();
    bdKey.AppendEncoded("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU=","base64");
    success = jws.SetMacKeyBd(0,bdKey);
    if (success == false) {
        console.log(jws.LastErrorText);
        return;
    }

    var jwsCompact = jws.CreateJws();
    if (jws.LastMethodSuccess == false) {
        console.log(jws.LastErrorText);
        return;
    }

    console.log(jwsCompact);

}

chilkatExample();