Noor Ul Amin

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The κ-Nearest Neighbors ( κNN) query is an important spatial query in mobile sensor networks. In this work we extend κNN to include a distance constraint, calling it a l-distant κ-nearest-neighbors (l-κNN) query, which finds the κ sensor nodes nearest to a query point that are also at or greater distance from each other. The query results indicate the(More)
Secure multicast communication has application in growing number of applications. Forward secrecy is of prime importance and insures message con…dentiality even long-term private key compromised. We present an e¢ cient construction of multi message multi receiver signcryption with forward secrecy on elliptic curves. It provides con…dentiality, integrity,(More)
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