·Java Open Single Sign-On Project-介绍

答案：What is JOSSO?
JOSSO, or Java Open Single Sign-On, is an open source J2EE-based SSO infrastructure aimed to provide a solution for centralized platform neutral user authentication. 


Pluggable Framework
The Pluggable framework allows to implement and combine multiple authentication schemes with credential stores. 

An authentication scheme is a security mechanisms used to verify user identity based on his credentials. Sample authentication schemes are username/password authentication or Certificate based authentication. 

Credential Stores are repositories for user credentials to be used during the user authentication transaction 

You could configure JOSSO to use for example certificate-based authentication scheme obtaining user X.509 certificates from a database using JDBC. 

Multi-platform Single Sign-On
JOSSO uses web services for asserting user identity, allowing the integration of non-Java applications (i.e: PHP, Microsoft ASP, etc.) to the Single Sign-On Service using the SOAP over HTTP protocol. 

Reverse Proxy Support
JOSSO comes with a Reverse Proxy component that can be used to create n-tier Single Sign-On configurations. 

Standard Based
JOSSO security infrastructure is based on JAAS (Java Authentication and Authorization Service) 
JOSSO uses web services implementing Axis as the distributed infrastructure. 
JOSSO uses Struts and JSP standards 

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