Jose\KeyConverter\RSAKey::loadPEM PHP Метод

    private function loadPEM($data)
    {
        $res = openssl_pkey_get_private($data);
        if (false === $res) {
            $res = openssl_pkey_get_public($data);
        }
        Assertion::false(false === $res, 'Unable to load the key');
        $details = openssl_pkey_get_details($res);
        Assertion::keyExists($details, 'rsa', 'Unable to load the key');
        $this->values['kty'] = 'RSA';
        $keys = ['n' => 'n', 'e' => 'e', 'd' => 'd', 'p' => 'p', 'q' => 'q', 'dp' => 'dmp1', 'dq' => 'dmq1', 'qi' => 'iqmp'];
        foreach ($details['rsa'] as $key => $value) {
            if (in_array($key, $keys)) {
                $value = Base64Url::encode($value);
                $this->values[array_search($key, $keys)] = $value;
            }
        }
    }