Get the JWE Protected Header

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.GetProtectedHeader, which copies the decoded shared JWE protected header into a JsonObject.

<?php

use Chilkat2\JsonObject;
use Chilkat2\Jwe;

$jwe = new Jwe();

// Load the JWE.
$jweCompact = 'eyJhbGciOiJBMjU2S1ciLCJlbmMiOiJBMjU2R0NNIn0.<...>.<iv>.<ciphertext>.<tag>';
try {
    $jwe->LoadJwe($jweCompact);

    // Copy the decoded shared JWE protected header into a JsonObject.  Only the protected header is
    // returned; it is not merged with the unprotected or per-recipient headers.
    $json = new JsonObject();
    $jwe->GetProtectedHeader($json);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

$json->EmitCompact = false;
echo $json->Emit(), "\n";