Difference between revisions of "Delegated Authentication"

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Single Sign-On (SSO) allows for the delegated authentication of platform Users against a corporate database. With SSO, users have a single username and password that provides access to applications which support SSO.
With delegated authentication, you use your own server to validate platform Users against a corporate database or an LDAP Directory. Users can then use a single username and password to access all of their applications--as long as they support delegated authentication.
 
Using SSO allows an organization to validate their users in their own secured environment. This means you can implement you own authentication methods (such as a database or LDAP Directory) to authenticate a user.  


===How Delegated Authentication Works===
===How Delegated Authentication Works===
Delegated Authentication lets you use an existing identity server to authenticate a log in request. (Typically, it will be an LDAP server) After the user is authenticated by your server, the user is logged into the platform.
When a User logs in, their identity is authenticated in both the platform and in your organization's systems. The following diagram shows the process:
 
 
====Actions====
When a User logs in, the following actions take place to authenticate the user in both the platform and in your organization's systems.  
:[[File:SSO-DA.png]]
:[[File:SSO-DA.png]]



Revision as of 01:43, 19 September 2012

With delegated authentication, you use your own server to validate platform Users against a corporate database or an LDAP Directory. Users can then use a single username and password to access all of their applications--as long as they support delegated authentication.

How Delegated Authentication Works

When a User logs in, their identity is authenticated in both the platform and in your organization's systems. The following diagram shows the process:

SSO-DA.png

This table describes the actions taken by the User, the platform, and your organization's web service. See Web Service for more information.

User... Platform... Your Organization's Web Service...
1. Log into the platform Validate that:
  • User is Active
  • SSO is Enabled
2. Make a Web Services call to the organization's Web service, requesting authorization.

Include these parameters in the call:

<syntaxhighlight lang="java" enclose="div">

username password originatingIp </syntaxhighlight> Note: originatingIp is the IP address that originated the login request. This could be useful to restrict access based on the user’s location. The Web Service must be implemented in a way that the platform is able to access it.

3. Validate the passed information and return either "Authenticated" or "Failure".
4. On Authenticated response, generate a new User Session. On Failure, notify the user.

Scope

SSO is limited to user authentication and does NOT include authorization. Users must be active in the platform. Teams, Roles and other permissions must also be maintained.

It is the responsibility of the corporate System Administrator/IT Staff to develop and implement a Web service that can accept and respond to the SSO web service calls made by the platform servers.

Enabling Delegated Authentication

  1. Click Settings > Administration > Single Sign-On
  2. Click the [Edit] button
  3. For Single Sign-On Settings, choose Delegated Authentication
  4. Fill in the Delegated Authentication Settings:
    • Specify the URL of the authentication server running in your environment (abc5.abc.com:8080)
    Note that the URL and Port number must be specified using a Fully Qualified Domain Name or an IP address. Secure HTTPS (Hypertext Transfer Protocol over Secure Socket Layer) protocol is used to access this URL.
    If you do not have this information available, contact your IT department or System Administrator.
    • Choose whether or not to Enable Single Sign-On for individual Users.
  5. Click [Save]

Setting up Communications with the Authentication Server

For a successful handshake with the platform, the authentication server needs a certificate. If you are using a self-signed certificate, it needs to be loaded into the cacert keystore file in the platform's {installed_JDK}/jre/lib/security folder. Otherwise, you get an SSL error.

To load the certificate into the keystore:

  1. Make sure that the JAVA_HOME environment variable points to the JRE in an installed JDK.
    Check the configuration in these three locations:
    • installation.properties
    • configure.pl installation script
    • scripts/longjump
    Learn more: Platform Installation Files
  2. Load the certificate using the keytool -import command/
    The default password is "changeit".
    Learn more: Java Tutorial: Importing a Certificate

Making a Web Service Call

Use the URL and port number provided under the Single Sign-On Settings Section to make a SOAP request to authenticate the users. SSO Request and SSO Response are predefined by the platform. These request and response are conducted via SOAP messaging.

Web Services Message Format

Request
SSO SOAP Request sent from the platform is as follows:
<syntaxhighlight lang="xml" enclose="div">

<?xml version="1.0" encoding="UTF-8" ?> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"> <soapenv:Body> <LJAuthenticate xmlns="urn:authentication.soap.ws.longjump.com"> <username>jim@abc.com</username> <password>sales</password> <originatingIp>1.2.3.4</originatingIp> </LJAuthenticate> </soapenv:Body> </soapenv:Envelope> </syntaxhighlight>

Response
SSO SOAP Response expected by the Platform is as follows:
<syntaxhighlight lang="xml" enclose="div">

<?xml version="1.0" encoding="UTF-8" ?> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"> <soapenv:Body> <LJAuthenticateResponse xmlns="urn:authentication.soap.ws.longjump.com"> <Status>Authenticated</Status> </LJAuthenticateResponse> </soapenv:Body> </soapenv:Envelope> </syntaxhighlight>