The public key encryption with keyword search (PEKS) scheme recently proposed by Boneh, Di Crescenzo, Ostrovsky, and Persiano enables one to search encrypted keywords without compromising the security of the original data. In this paper, we address three important issues of a PEKS scheme, “refreshing keywords”, “removing secure channel”, and “processing multiple keywords”, which have not been c...

During the transmission of data from sender prevents from various attacks. Public key encryption is a technique which provides encryption of data using public key. The existing technique implemented for the searching of keywords with public key encryption provides security from password Guessing attacks [1]. But the technique implemented here enables security from various attacks as fine as als...

During the last decade with the rapid increase in indoor wireless communications, location-aware services have received a great deal of attention for commercial, public-safety, and a military application, the greatest challenge associated with indoor positioning methods is moving object data and identification. Mobility tracking and localization are multifaceted problems, which have been studie...

The agent paradigm has been the subject of much research during the last decade. Recently, security of multiagent systems has gained increased attention. In this paper we consider the FIPA agent communication specifications from a security perspective, and outline how security functionality can be added. Keywords— security, multi-agent system, communication, FIPA.