diff --git a/fp_altcha_spamschutz/src/Vendor/AltchaOrg/Altcha/V1/BaseChallengeOptions.php b/fp_altcha_spamschutz/src/Vendor/AltchaOrg/Altcha/V1/BaseChallengeOptions.php
new file mode 100644
index 0000000..6dc9bae
--- /dev/null
+++ b/fp_altcha_spamschutz/src/Vendor/AltchaOrg/Altcha/V1/BaseChallengeOptions.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace AltchaOrg\Altcha\V1;
+
+use AltchaOrg\Altcha\V1\Hasher\Algorithm;
+
+/**
+ * @phpstan-type ChallengeParams array<string, null|scalar>
+ */
+class BaseChallengeOptions
+{
+    public const DEFAULT_MAX_NUMBER = 1000000;
+
+    public readonly string $salt;
+
+    /**
+     * Options for creation of a new challenge.
+     *
+     * @see ChallengeOptions for options with sane defaults.
+     *
+     * @param ChallengeParams $params
+     */
+    public function __construct(
+        public readonly Algorithm $algorithm,
+        public readonly int $maxNumber,
+        public readonly ?\DateTimeInterface $expires,
+        string $salt,
+        public readonly int $number,
+        public readonly array $params,
+    ) {
+        if ($expires) {
+            $params['expires'] = $expires->getTimestamp();
+        }
+
+        if (!empty($params)) {
+            $salt .= '?' . http_build_query($params);
+        }
+
+        // Add a delimiter to prevent parameter splicing
+        if (!str_ends_with($salt, '&')) {
+            $salt .= '&';
+        }
+
+        $this->salt = $salt;
+    }
+}