How i can generate a valid SP XML file for SAML2?

Question

i don't know implement SAML2 protocol for my custom SP service, and i've some difficults...

I have tried this;

<?xml version="1.0" encoding="UTF-8"?>
 <EntityDescriptor xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata" entityID="http://www.mydomain.ext/#/secure">
  <SPSSODescriptor WantAssertionsSigned="true" protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol">
   <AssertionConsumerService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="http://www.mydomain.ext/#/" isDefault="true"/>
    <KeyDescriptor>
     <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
      <ds:X509Data>
       <ds:X509Certificate>
        {my_x509_certificate_generated}
       </ds:X509Certificate>
      </ds:X509Data>
     </ds:KeyInfo>
    </KeyDescriptor>
   <NameIDFormat>urn:oasis:names:tc:SAML:2.0:nameid-format:entity</NameIDFormat>
  </SPSSODescriptor>
 </EntityDescriptor>

I need make it for send xml file to the IDP. What miss for make a valid SP xml file?, Thank's

Answer 1

The XML you attached is an SP metadata which describes the SP properties - ID, certificate, binding support, etc... I suggest you get more familiar with SAML before getting into actual coding or configuration.

Here are some good resources:

https://github.com/jch/saml

https://en.wikipedia.org/wiki/Security_Assertion_Markup_Language

https://en.wikipedia.org/wiki/SAML_2.0

In case you'r implementing your SP with JAVA, here are some good libraries you can use: OneLogin's SAML Java Toolkit - https://github.com/onelogin/java-saml

Okta SignIn widget - https://github.com/okta/okta-signin-widget

LastPass SAML SDK for Java - https://github.com/lastpass/saml-sdk-java

Dead Simple SAML 2.0 Client - https://github.com/coveo/saml-client

pac4j - http://www.pac4j.org/docs/clients/saml.html