Luis Montalvo

Improving the Resistance to Side-Channel Attacks on Cloud Storage Services

Providers of cloud storage services usually apply deduplication across multiple user accounts in order to optimize savings of both upload bandwidth and storage space. However, deduplication can be used as a side channel by an adversary for obtaining sensitive information about other users data. We propose a new gateway-based deduplication model that lets the storage service provider apply efficient deduplication while substantially reducing the risk of information leakage. We suppose that the cloud storage service is provided by a Network Service Provider that also ships advanced gateways to its customers. We discuss why it is much harder for an adversary to infer deduplication from the gateway than from a fully controlled host.

Implementation of a TV studio based on Ethernet and the IP protocol stack

ó A small scale TV studio based on an AVB Ethernet network and the IP protocol stack has been presented. ó The main components of this IPTV studio are: the AVB Ethernet network, the management software and its set of protocols, and the synchronization mechanism to GenLock the A/V equipment. ó IP-Studio-Link is a reconfigurable platform used as a bridge between the traditional audio/video equipment and the AVB Ethernet network.