1 What is single sign-on:
There will be multiple sub-projects in the distributed project, and each sub-project will be accessed for authentication and authorization. Then, when the user wants to access at this time, each sub-module cannot be logged in once. In order to improve user experience, the user must be authenticated only once It can be accessed in multiple sub-projects with access rights. This function is used for single sign-on;
Single Sign On (Single Sign On), referred to as SSO for short, is one of the more popular solutions for enterprise business integration.
The definition of SSO is that in multiple application systems, users only need to log in once to access all mutually trusted application systems. For
example, single sign-on, talk about the process:
2 Features of single sign-on:
(1) The authentication system is an independent system;
(2) Each subsystem passes the authentication system through http or other protocols to complete user authentication;
(3) User identity information is stored in the redis cluster.
What is third-party authentication :
if a user does not Register an account on the platform, but have a WeChat account and personal information. When the user logs in, they can click WeChat to log in. The system requests the WeChat system to verify the user's identity information. After WeChat gets the user's identity information, it can be Continue to visit;
when you need to access the resources of the system, you must first pass the authentication of the third-party system (for example: WeChat authentication), and the third-party system authenticates the user and authorizes access to the resources
