Jose\Component\KeyManagement\KeyAnalyzer\RsaAnalyzer

Complexity

Total Complexity

10

Size/Duplication

Total Lines	19
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	2

Importance

Changes

0

1 Method

Rating	Name	Duplication	Size	Complexity
B	analyze()	0	13	10

<?php

declare(strict_types=1);

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2014-2017 Spomky-Labs
 *
 * This software may be modified and distributed under the terms
 * of the MIT license.  See the LICENSE file for details.
 */

namespace Jose\Component\KeyManagement\KeyAnalyzer;

use Base64Url\Base64Url;
use Jose\Component\Core\JWK;

final class RsaAnalyzer implements JWKAnalyzerInterface
{
    /**
     * {@inheritdoc}
     */
    public function analyze(JWK $jwk, array &$messages)
    {
        if ('RSA' !== $jwk->get('kty')) {
            return;
        }
        $n = 8 * mb_strlen(Base64Url::decode($jwk->get('n')), '8bit');
        if ($n < 2048) {
            $messages[] = 'The key length is less than 2048 bits.';
        }
        if ($jwk->has('d') && (!$jwk->has('p') || !$jwk->has('q') || !$jwk->has('dp') || !$jwk->has('dq') || !$jwk->has('p') || !$jwk->has('qi'))) {
            $messages[] = 'The key is a private RSA key, but Chinese Remainder Theorem primes are missing. These primes are not mandatory, but signatures and decryption processes are faster when available.';
        }
    }
}