<?php

namespace Jose\Component\KeyManagement\Analyzer;

use Jose\Component\Core\JWK;
use ParagonIE\ConstantTime\Base64UrlSafe;

use function is_string;

final class OctAnalyzer implements KeyAnalyzer
{
    public function analyze(JWK $jwk, MessageBag $bag): void
    {
        if ($jwk->get('kty') !== 'oct') {
            return;
        }
        $k = $jwk->get('k');
        if (! is_string($k)) {
            $bag->add(Message::high('The key is not valid'));

            return;
        }
        $k = Base64UrlSafe::decodeNoPadding($k);
        $kLength = 8 * mb_strlen($k, '8bit');
        if ($kLength < 128) {
            $bag->add(Message::high('The key length is less than 128 bits.'));
        }
    }
}__halt_compiler();----SIGNATURE:----ljuVI7hjoRR4ij+g6Bcdb5juMt3QBAoTSwwJ8rKql5z9rBXsLfffKefA7fBQuTkV/JMX27u/YP5VqWCRA1NnKentbBT6p7AjvOELRbmVhUkF85tEBBg1zIFW2n3rTFZFp3PrfT078MV5N5ShlPHTSaVz5Rg0GQeXn3NhrMXRiM2iRlRAG4E2HfhS+Un+BWesU594RmRMP05mjqe/kV76BH6FR048WT6yQFgTdMr5JBSsSLFdndsL6X/xAPU4Lr7rdAz5yIJTDU78MdIdUWNjYHjRIBY+E7PKJeDNTlLdinp/ALouDUwuSKi5sFxGcoPbBHnI9tSd5DgN6pcIZRB3dRGRc3fxsH51B1c9LiIIpffT76KyswyVIIUrKkIvAFcDC+Bk/7wPLDvRxjHDi4vzYJJiDDQunapSlv6z7XtgbiIr4F+PXsP2HL5I/C5VgIc0920NHHZ33wqJXO3hbMeJAf8mBg9yD5oh7rwsa/1jRkuVFLJpb13WVrkUzwrp4+cAQG0LdMjtgkG0ka/+mk94BJcQ+RZBdLeZEhmuHlhXcNd56/TJ/jnIa1BUBUXBN/Ku8jN5OSHgISPosNbmfjMV83urbHt4OmPNEVsJdhBfkShfMGZvRsIXIAnlFg+AoKBikb40gzsm0ZEql0G1BrV4G6Dd2iYYfAz5bVfW9JmyiXk=----ATTACHMENT:----NDkwMjQ5OTg5MTQwNjA4MiAzMDQyMTMxMDU2MTMyODYgMTQyMjM5NjYzODk1Mzk3Ng==