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PEAC: a Probabilistic, Efficient, and resilient Authentication protocol for broadcast Communications
| Content Provider | CiteSeerX |
|---|---|
| Author | Cirulli, Andrea Valueteam S. P., A. Muraglia, Via Della Grande Italia, Roma Pietro, Roberto Di |
| Abstract | One of the main challenges of securing broadcast commu-nications is source authentication: to allow each receiver to verify the origin of the data. An ideal broadcast authen-tication protocol should be efficient for the sender and the receiver, have a small communication overhead, allow the receiver to authenticate each individual packet as soon as it is received (i.e. no buffering on the receivers), provide per-fect robustness to packet loss, and scale to a large number of receivers. In this paper we introduce PEAC, a probabilistic, efficient and resilient authentication protocol for broadcast commu-nications. This new construction achieves all the above properties, with the tradeoff that it requires just loose time synchronization between the sender and the receivers. Due to its low communication overhead and minimal synchro-nization requirements, the scheme is particularly suitable for low-end resource constrained devices as well as applications that require to process the received messages in real time or quasi-real time fashion. For instance, a packet can be authenticated computing 12 hash only on both the sender and the receivers, while the packet forging probability is kept below 2ā80. Finally, note that PEAC is completely customizable, allowing to trade-off security with a (small) overhead increase on the sender only, while not affecting the (small) overhead experienced by receivers. |
| File Format | |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
