--- title: Extensibility APIs author: rick-anderson description: This document serves as the table of contents for the various ASP.NET Core data protection extensibility topics. manager: wpickett ms.author: riande ms.date: 10/14/2016 ms.prod: asp.net-core ms.technology: aspnet ms.topic: article uid: security/data-protection/extensibility/index --- # Extensibility APIs * [Core cryptography extensibility](core-crypto.md) * [Key management extensibility](key-management.md) * [Miscellaneous APIs](misc-apis.md)