In-network data processing in wireless sensor networks
(WSN) is a rapidly emerging research topic. The distributed
processing could have several advantages for wireless
sensor networks. First of all, in WSN computation is typically
much less energy consuming than communication. Secondly,
in-network processing enables WSN to provide more complex
services to application layer, and not only data gathering
functionality. However, in addition to computational
overhead, in-network data processing introduces also many
challenging security issues. Most of them are still open and
require development of innovative security mechanisms. In
this article we survey the current research related to security
of in-network data processing in wireless sensor networks
and highlight the directions, which are most promising in our
opinion.
