Initial

system/Encryption/EncrypterInterface.php

@@ -0,0 +1,46 @@
+<?php
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Encryption;
+
+use CodeIgniter\Encryption\Exceptions\EncryptionException;
+
+/**
+ * CodeIgniter Encryption Handler
+ *
+ * Provides two-way keyed encryption
+ */
+interface EncrypterInterface
+{
+    /**
+     * Encrypt - convert plaintext into ciphertext
+     *
+     * @param string            $data   Input data
+     * @param array|string|null $params Overridden parameters, specifically the key
+     *
+     * @throws EncryptionException
+     *
+     * @return string
+     */
+    public function encrypt($data, $params = null);
+
+    /**
+     * Decrypt - convert ciphertext into plaintext
+     *
+     * @param string            $data   Encrypted data
+     * @param array|string|null $params Overridden parameters, specifically the key
+     *
+     * @throws EncryptionException
+     *
+     * @return string
+     */
+    public function decrypt($data, $params = null);
+}