Fixed typo
diff --git a/system/libraries/Encryption.php b/system/libraries/Encryption.php
index e3e6813..f3e0398 100644
--- a/system/libraries/Encryption.php
+++ b/system/libraries/Encryption.php
@@ -121,7 +121,7 @@
 	);
 
 	/**
-	 * List of supported HMAC algorightms
+	 * List of supported HMAC algorithms
 	 *
 	 * name => digest size pairs
 	 *