FEC-Seluge: Efficient, reliable, and secure large data dissemination using erasure codes.

Secure data dissemination is indispensable in various network systems such as wireless sensor networks (WSNs) and Information-Centric Networks. Several approaches have been proposed for secure data dissemination while adopting forward error correction techniques (e.g., erasure codes) for efficiency. In particular, an approach named LR-Seluge was proposed to achieve efficient, secure data dissemination by integrating erasure codes into Seluge, a previous solution for secure data dissemination in WSNs. However, despite its efficiency in reducing the number of packet transmissions, LR-Seluge still introduces long dissemination delays. In this paper, we develop a new approach called FEC-Seluge, which is aimed at reducing both the dissemination delay and the number of packet transmissions by taking full advantage of erasure codes. Our key contribution is a technique to securely estimate the optimal amount of redundancy of erasure coding to balance loss-tolerance capabilities and bandwidth consumption. In addition, we develop a novel proactive transmission mechanism, which considerably improves the efficiency by effectively tolerating packet losses. We evaluated FEC-Seluge through experiments in a testbed environment. The experimental results show that FEC-Seluge outperforms LR-Seluge by about 30% and 23% in terms of the dissemination delay and the number of packet transmissions, respectively.