WebAuthn初步接好

app/Models/Casts/WebAuthnBase64.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Models\Casts;
+
+use Illuminate\Contracts\Database\Eloquent\CastsAttributes;
+use function Safe\base64_decode;
+
+class WebAuthnBase64 implements CastsAttributes
+{
+    public function get($model, string $key, $value, array $attributes): ?string
+    {
+        return $value !== null ? base64_decode($value) : null;
+    }
+
+    public function set($model, string $key, $value, array $attributes)
+    {
+        return $value !== null ? base64_encode($value) : null;
+    }
+}