adding custom filter (#8)

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 
 This projects adheres to [Semantic Versioning](https://semver.org/) and [Keep a CHANGELOG](https://keepachangelog.com/).
 
+## [1.3.6]
+
+### Fixed
+- Encrypted data now supports filters to provide custom keys.
+
 ## [1.3.5]
 
 ### Fixed
@@ -136,6 +141,7 @@ This projects adheres to [Semantic Versioning](https://semver.org/) and [Keep a
 
 - Initial production release.
 
+[1.3.6]: https://github.com/infinum/eightshift-forms-utils/compare/1.3.5...1.3.6
 [1.3.5]: https://github.com/infinum/eightshift-forms-utils/compare/1.3.4...1.3.5
 [1.3.4]: https://github.com/infinum/eightshift-forms-utils/compare/1.3.3...1.3.4
 [1.3.3]: https://github.com/infinum/eightshift-forms-utils/compare/1.3.2...1.3.3

src/Helpers/UtilsEncryption.php

@@ -25,9 +25,13 @@ class UtilsEncryption
 	 */
 	public static function encryptor(string $value, string $action = 'encrypt')
 	{
+		$filterNameSecretKey = UtilsHooksHelper::getFilterName(['encryption', 'secretKey']);
+		$secretKey = \apply_filters($filterNameSecretKey, \wp_salt()); // user define private key.
+
+		$filterNameSecretIv = UtilsHooksHelper::getFilterName(['encryption', 'secretIvKey']);
+		$secretIv = \apply_filters($filterNameSecretIv, \wp_salt('SECURE_AUTH_KEY')); // user define secret key.
+
 		$encryptMethod = "AES-256-CBC";
-		$secretKey = \wp_salt(); // user define private key.
-		$secretIv = \wp_salt('SECURE_AUTH_KEY'); // user define secret key.
 		$key = \hash('sha256', $secretKey);
 		$iv = \substr(\hash('sha256', $secretIv), 0, 16); // sha256 is hash_hmac_algo.