Switched IV vector to openssl and added a test to verify it works as before (#4)

* Update cryptor.php

* Simple Assert test

Added a simple assert test to prove it works.

Signed-off-by: Michael Soileau <webart.video@gmail.com>

Author: NoMan2000

cryptor.php

@@ -74,7 +74,10 @@ public function encryptString($in, $key, $fmt = null)
         }
 
         // Build an initialisation vector
-        $iv = mcrypt_create_iv($this->iv_num_bytes, MCRYPT_DEV_URANDOM);
+        $iv = openssl_random_pseudo_bytes($this->iv_num_bytes, $isStrongCrypto);
+        if (!$isStrongCrypto) {
+            throw new \Exception("Not a strong key");
+        }
 
         // Hash the key
         $keyhash = openssl_digest($key, $this->hash_algo, true);

tests/BasicCryptTest.php

@@ -0,0 +1,13 @@
+<?php
+
+require_once __DIR__ . '/../cryptor.php';
+
+$data = 'Good things come in small packages.';
+$key = '9901:io=[<>602vV03&Whb>9J&M~Oq';
+
+$encrypted = Cryptor::Encrypt($data, $key);
+$decrypted = Cryptor::Decrypt($encrypted, $key);
+
+assert(strlen($data) === strlen($decrypted), 'The decrypted data will match the binary size of the encrypted data');
+
+assert($data === $decrypted, 'The encrypted data will match the decrypted data');