JavaScript

Set the JWE Protected Header

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.SetProtectedHeader, which sets the integrity-protected JWE header from a JsonObject. The header specifies the key-management algorithm (alg) and content-encryption algorithm (enc).

Background. The protected header is integrity-protected and applies to all recipients. It is configured before encrypting.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

JavaScript

var success = false;

var jwe = new CkJwe();

//  Build the JWE protected header.  The "alg" member names the key-management algorithm and the "enc"
//  member names the content-encryption algorithm.
var header = new CkJsonObject();
header.UpdateString("alg","A256KW");
header.UpdateString("enc","A256GCM");

//  Set the protected header on the JWE.  The protected header is integrity-protected and applies to
//  all recipients.
success = jwe.SetProtectedHeader(header);
if (success == false) {
    console.log(jwe.LastErrorText);
    return;
}

console.log("Protected header set.");