Security for Replicated Web Documents

The WWW is experiencing explosive growth and an increasing number of security-sensitive applications make now use of it. To achieve worldwide scalability and reduce latency in handling user requests, many of these applications make extensive use of data replication through caches and Content Delivery Networks. However, such replication mechanisms place data on untrusted hosts, which introduces various security problems. In this paper we present an architecture that combines data content, replication strategies and security in one unified object model and offers integrity guarantees for Web documents replicated on non-secure servers.