Apache Shiro is a powerful and easy-to-use Java security framework that performs authentication, authorization, cryptography, and session management. With Shiro's easy-to-understand API, you can quickly and easily secure any application – from the smallest mobile applications to the largest web and enterprise applications. We recommend you start with the 10 Minute Tutorial which gives you a feel for Shiro and its API. Then feel free to get started using Shiro in your own applications. If you have any questions, please check out our documentation or contact the user mailing list. And if you're a fan of Shiro and would like to help it grow, we invite you become a contributor to the project. Please check out the New Contributor Guide.