TwoFactorAuth/lib/Providers/Rng/OpenSSLRNGProvider.php

<?php

namespace RobThree\Auth\Providers\Rng;

class OpenSSLRNGProvider implements IRNGProvider
{
    public function __construct(private bool $requirestrong = true)
    {
    }

    /**
     * {@inheritdoc}
     */
    public function getRandomBytes(int $bytecount): string
    {
        // will throw an Exception on failure
        return openssl_random_pseudo_bytes($bytecount, $crypto_strong);
    }

    /**
     * {@inheritdoc}
     */
    public function isCryptographicallySecure(): bool
    {
        return $this->requirestrong;
    }
}