Jose\Component\KeyManagement\KeyAnalyzer\OctAnalyzer::analyze()

Complexity

Conditions	6
Paths	9

Size

Total Lines	26
Code Lines	19

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    public function analyze(JWK $jwk, array &$messages)
    {
        if ('oct' !== $jwk->get('kty')) {
            return;
        }
        $k = Base64Url::decode($jwk->get('k'));
        $kLength = 8 * mb_strlen($k, '8bit');
        if ($kLength < 128) {
            $messages[] = 'The key length is less than 128 bits.';
        }

        if (class_exists(Zxcvbn::class)) {
            $zxcvbn = new Zxcvbn();
            $strength = $zxcvbn->passwordStrength($k);
            switch (true) {
                case $strength['score'] < 3:
                    $messages[] = 'The octet string is weak and easily guessable. Please change your key as soon as possible.';
                    break;
                case $strength['score'] === 3:
                    $messages[] = 'The octet string is safe, but a longer key is preferable.';
                    break;
                default:
                    break;
            }
        }
    }
}