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The saml-md-aggregator is based on Spring 3. It uses a RESTful URL model and relies on the JAVA cryptography engine for key management and PKCS#11 as an interface to Hardware Security Modules (HSMs). Spring integration is used for internal asynchronous messaging between the metadata store and metadata index. In order to provide fast searching and lookup based on tags on metadata the saml-md-aggregator employs a graph database called Neo4j. The neo4j is a very fast native graph store perfectly. The standalone jar uses the winstone servlet container.
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