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Editorial Team
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Asked: 2026-06-19T00:15:38+00:00

I have a customer who wants to implement SSO using SAML2 assertion based approach.

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I have a customer who wants to implement SSO using SAML2 assertion based approach. The customer will be the Identity Provider (IDP) and my application will effectively be the Service Provider (SP).

In the past I’ve implemented SSO solutions where the IDP was Oracle Access Manager and therefore we were provided with the idp.xml file which allowed us to configure our SP environment using the supplied Fedlet. This conveniently created a relevant WAR file which, when deployed, allowed me to distribute the sp.xml file to the customer who imported it into their IDP. This all worked fine and I understand the concepts i.e. We receive the initial request, the fedlet handles this and takes the user to the IDP where they authenticate, then they’re passed back to our SP with a SAML response which the Fedlet allows us to parse and extract some data identifying the user. I then do what’s required to sign them into our application.

However the current requirement is not using any backend framework to provide the IDP, they’ve stated that it’s custom built one. They’ve given me the IDP URL and a cert file and are asking for our “AssertionConsumerServiceURL” and “AudienceURI”.

The application which I’m enabling SSO for is largely Java based. My investigation so far has led me to Forgerock’s OpenAM solution as well as Shibboleth’s OpenSAML. However I’m struggling with the first step, essentially where do what I start building a custom SP application connecting to a third party IDP using OpenAM/Shibboleth/AnotherFramework.

Any pointers would be very useful.

Thanks,
Lee

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1 Answer

  1. Editorial Team

    Depends on what what you requirements are. OpenAM feldlet or Shibboleth i probably the best approach since you don’t have to do so much coding on your own.

    OpenSAML is a very low level toolkit for handling SAML messages. I would not recommend it if, not really needed.

    As for the things they are asking for, the AssertionConsumerServiceURL is the service endpoint where you recieve your SSO SAML messages.

    Defenition of AudienceURI is quite gray. Basically you send them an identifier, they include this in their messages and you validate that identifier is the same you gave them. I my self do not understand the difference between this and Destination…

    I’m a bit surprised that they ask you for this. The standard way to do this first exchange of information is by SAML metadata documents.

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