We consider a source-destination pair that can only communicate through an untrusted intermediate relay node. The intermediate node is willing to employ a designated relaying scheme to facilitate reliable communication between the source and the destination. Yet, the information it relays needs to be kept secret from it. In this two-hop communication scenario, where the use of the untrusted rel...

End-to-End secure communication between sensor and sink is important in network communication management. In majority cases End-toEnd secure communication is largely ignored since most of us give importance to Hop-to-Hop communication. Endto-End secure communication protocol in randomly deployed wireless sensor network is based on methodology called differentiated key pre-distribution [19]. Her...