Trust in distributed small sized data centers

Peer-to-peer (P2P) networks have large advantages over server-based solutions in terms of efficiency for bandwidth consumption and server workload. This is particularly relevant for the distribution of large volume content like multimedia data. This paper proposes a security architecture that provides essential security functionality for a platform enabling commercial P2P applications. One main characteristic of such a platform is, that the devices of the P2P network are not under the physical control of the owner. The proposed security and trust architecture includes solutions for integrity protection of data as well as for software on the device, exclusion of manipulated nodes from the network, and isolation between applications by different stakeholders residing in parallel on the same platform. All solutions can be build on existing secure hardware anchors as provided by the Trusted Platform Module (TPM) and its certification infrastructure.