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).

<?php

include("chilkat.php");

$success = false;

$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.
$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) {
    print $jwe->lastErrorText() . "\n";
    exit;
}

print 'Protected header set.' . "\n";

?>