<?php

declare(strict_types=1);

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:----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----ATTACHMENT:----OTY4Mzc1ODczNDA4MDA5NyA2ODQwNDMyNDY2OTkzMTIwIDExNDA0ODY5Mjg1NDc2ODY=