Encrypt Binary Content to a JWE

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.EncryptBd, which encrypts binary content held in a BinData and writes the resulting JWE into a StringBuilder.

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    var jwe = new chilkat.Jwe();

    //  Set the JWE protected header, specifying the key-management algorithm (alg) and the content-
    //  encryption algorithm (enc).
    var header = new chilkat.JsonObject();
    header.UpdateString("alg","A256KW");
    header.UpdateString("enc","A256GCM");
    success = jwe.SetProtectedHeader(header);
    if (success == false) {
        console.log(jwe.LastErrorText);
        return;
    }

    //  The 256-bit key-wrapping key (base64) for recipient index 0.  In production, obtain the key
    //  from a secure source rather than hard-coding it.
    var base64Key = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU=";
    success = jwe.SetWrappingKey(0,base64Key,"base64");
    if (success == false) {
        console.log(jwe.LastErrorText);
        return;
    }

    //  Encrypt binary content held in a BinData, writing the resulting JWE into a StringBuilder.
    var bdContent = new chilkat.BinData();
    bdContent.AppendString("Binary content to encrypt.","utf-8");

    var sbJwe = new chilkat.StringBuilder();
    success = jwe.EncryptBd(bdContent,sbJwe);
    if (success == false) {
        console.log(jwe.LastErrorText);
        return;
    }

    console.log(sbJwe.GetAsString());

}

chilkatExample();