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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <p style="margin: 10px 0 0 0; margin-top: 0">I have implemented a pretty disruptive feature to target general improvements in security and usability in configuring trust material used to validate CAS proxy callback endpoints over HTTP. I worked on a branch because I'm fairly certain that at least some of the work violates our policy for API/configuration stability for minor releases:</p> <p style="margin: 10px 0 0 0">git@git.shibboleth.net:serac/java-identity-provider</p> <p style="margin: 10px 0 0 0">(I have attempted to grant read-only access to the repo above to all committers.)</p> <p style="margin: 10px 0 0 0">A brief overview of the solution follows. Build on the recent support for CAS relying parties in SAML metadata, <a href="https://issues.shibboleth.net/jira/browse/IDP-701" title="Provide SAML metadata facility for CAS" class="issue-link" data-issue-key="IDP-701" style="color: #3b73af; text-decoration: none">IDP-701</a>, and use a chaining trust engine that checks for trust material first from a metadata source (<tt>MetadataCredentialResolver</tt>) then fall back to a <tt>PKIXX509CredentialTrustEngine</tt> configured with a static list of trusted CAs. The list of CAs is exposed as a first-class configuration point that has a default empty list defined in system configuration that can be overridden by a list in user-space configuration.</p> <p style="margin: 10px 0 0 0">The API component <tt>ProxyAuthenticator</tt> has been deprecated and superseded by a new component, <tt>ProxyValidator</tt>. The ability to configure the former component in user-space configuration has been removed; I'm fairly certain this breaks the API/configuration policy. I simply don't see how to maintain that configuration point in a backward-compatible way, but I'm open to suggestions.</p> </td>
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