Addressing secure data routing scheme for heterogeneous sensor networks

In wireless sensor networks (WSNs); routing protocols are one of the main issues in existing research. These protocols make the best use of limited resources, particularly the energy efficiency and effectiveness of data dissemination. Few of them discuss security issues in homogenous sensor networks which consume much power, have poor performance limits and less scalability. In order to attain the high performance, we have chosen heterogeneous sensor networks (HSNs) model. In this paper, we are addressing secure data routing (SDR) scheme based on cryptography for heterogeneous sensor networks. We have incorporated following mechanism in SDR scheme: 1) symmetric-session based key system is proposed, which change session key after session expire; 2) efficient secure data routing scheme is proposed; 3) cluster-head selection technique is discussed. This is a novel scheme for non-secure sensor network application. In addition, we devote special attention to facilitate the secure routing against some popular attacks, such as: sinkhole, wormhole, sybil and selective forwarding attacks.