Got an error "Decrypting: authentication failed" while using Encryption service

Hi, in my project I need to store category id in category edit page inside a hidden field. Then, after form submit I want to update that particular category. To achieve this, in a secured approach, I used Encryption service of CodeIgniter 4.

Note: In the App\Config\Encryption.php file, I already set the "base 64" encoded value for "key" property that I got after executing createKey() static function of the Encryption class. 

Also, I included that Encryption class with its namespace that is "CodeIgniter\Encryption\Encryption".

Below code is for the editCategory function, where I create the encryption key, then using that key I encrypt category id. Finally, I pass that to the "edit_category" view file.

PHP Code:

public function editCategory($categoryId) {
        $data = [];
        $data['title'] = 'Edit Category';

        /**
         * Access Configuration settings for the Encryption file
         */
        $config = config('Encryption');

        /**
         * Generate base64 encoded representation of the encryption key
         */
        $key = base64_encode(Encryption::createKey(32));


        $configuration = new \Config\Encryption();
        $configuration->key = $key;
        $configuration->driver = 'OpenSSL';
        $encrypter = \Config\Services::encrypter($configuration);

        $categoryModel = new CategoryModel();
        $category = $categoryModel->where('id', $categoryId)->first();
        $categoryId = $category['id'];

        $encryptedCategoryId = $encrypter->encrypt($categoryId);
        // echo $encryptedCategoryId;die;

        $data['category'] = $category;
        $data['categoryId'] = $encryptedCategoryId;


        echo view('templates/admin_header', $data);
        echo view('admin/category/edit_category', $data);
        echo view('templates/admin_footer');
    } 


In edit_category.php file, I pass the encrypted category id to the updateCategory function.

Code snippet for hidden field in edit_category.php is written below.

PHP Code:

  <input type="hidden" name="categoryId" value="<?= isset($categoryId) ? $categoryId : ''  ?>"> 


Codes for updateCategory function is shown below, in that function I wanted to display the decrypted version of the category id.

PHP Code:

public function updateCategory() {
        $data = [];
        $data['title'] = 'Edit Category';

        $validation = \Config\Services::validation(); 
        $rules = $validation->getRuleGroup('categoryCreate');

        if(!$this->validate($rules)) {

            $data['validation'] = $this->validator;
            echo view('templates/admin_header', $data);
            echo view('admin/edit_category', $data);
            echo view('templates/admin_footer');

        } else {

            $catId = $this->request->getPost('categoryId');
            
            // configure the encryption service properly, before decrypting
            $config = new \Config\Encryption();
                        
                        // load the Encryption.php file's configuration settings
            $configValues = config('Encryption');
            $config->key = base64_decode($configValues->key);
            $config->driver = 'OpenSSL';

            $encrypter = \Config\Services::encrypter($config);

            $decryptedCatId = $encrypter->decrypt($catId);
            
            die('category id: '. $decryptedCatId);

            
        }
    } 


Have I done any mistake? Please help.