Get a JWS Protected Header

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.GetProtectedH, which copies the decoded protected header of a signature into a JsonObject.

Background. The protected header is integrity-protected by the signature. Inspecting it (for example the alg value) is useful before deciding how to validate.

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bool success = false;

Chilkat.Jws jws = new Chilkat.Jws();

//  Load the JWS compact serialization.
string jwsCompact = "eyJhbGciOiJIUzI1NiJ9.VGhpcyBpcyB0aGUgY29udGVudCB0byBzaWduLg.<signature>";
success = jws.LoadJws(jwsCompact);
if (success == false) {
    Debug.WriteLine(jws.LastErrorText);
    return;
}

//  Copy the decoded protected header of signature 0 into a JsonObject.
Chilkat.JsonObject json = new Chilkat.JsonObject();
success = jws.GetProtectedH(0,json);
if (success == false) {
    Debug.WriteLine(jws.LastErrorText);
    return;
}

json.EmitCompact = false;
Debug.WriteLine(json.Emit());