Introduction

The authentication and registration processes are very important to build intranet systems. In this type of software, it is necessary to protect data against non-authorized users. We decided to describe typical solutions that are commonly used in many projects. It will help you configure the out-of-the box authentication system in Liferay and define the password policy. You will also learn about integration with the most popular single sign-on mechanism (SSO). The purpose of an SSO is to permit a user to access multiple applications while providing their credentials only once. The Central Authentication Service (CAS) is a single sign-on protocol for the Web. It is also a software package that implements this protocol.