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Dr Bikasih Thapa & Dr Maheswar Prasad (Nepal) - Hideo Wada MD PhD (japan) - Dr a Lavra Castrocatesana (Mexico) - Dr Mrs N.M. Hettiarachechui (Srilanka) - Dr Jorge Aldrete Velasco (Mexico) - Prof Hans Peter Kohler (Switzerland) - Dr Hermanus Suhartono S Sp.OG(K) PhD - Dr Isabel Pinheiro (Portugal) - Dr Suranga (Srilanka) - Jovia Dino Jansen Amsterdam,Holand - Hideo Wada MD PhD University Graduate School of Medicine Departement of Moleculer and Laboratory Medicine Japan - DR Bikash Thapa Internal Medicine Nepal University - DR Maheswar Prasad Internal Medicine Nepal University - Dr a Lavra Castro Castresana Colegio de Medicina interna de Mexico - Dr Suransa Manilgama University of Srilanka Internal Departement Medicine - Dr Mrs N.M. Hettiarachechui University of Medicine Srilanka - Dr Jorge Aldrete Velaso .Colegio de Medicina Interna de Mexico - Prof Hans Peter Kholer M.D FACD Profesor of Medicine University ot Switzerland - Dr Ramezan Ali Atace . Baqiyatallah University of Medical Sciences Departement of Micrology Tehran Iran - Ezekiel Wong Toh Yoon Dr. Gastroenterology of Japan - D Eric Beck,MD Bethesda Hospital Capitol Boelevard St Paul USA - Dr Emine Guderen Sahin Istambul University of Internal Medicine Turky - Dr Selmin Toplan Istambul University - Dr Nicholas New Australia - Dr Kughan Govinden. Tropical Infection of Internal Medicine Malaysia - Dr Godfrey M Rwegerera Princes Marina Hospital Bostwana -

Title : EPLQ: Effective, confidential, location-based query on offsite encrypted data

Author : KALWAKURTHI SRI SANDHYA, K BALAJI SUNIL CHANDRA, TALARI SIVALAKSHMI

Abstract :

Due to the increasing number of people using smartphones, location-based services (LBS) have recently become more popular and significant. Nevertheless, a user's capacity to monitor their location might be compromised by using LBS. One popular location-based service (LBS) that gives information about POIs within a certain distance is spatial range query; in this study, we provide EPLQ, an efficient and privacypreserving LBS solution for this purpose. We provide the first privacy-preserving spatial range inquiry using a predicate-only encryption scheme for inner product range (IPRE). With IPRE, it is possible to determine, without compromising privacy, if a given position is within a certain circular zone. Additionally, we suggest a privacy-preserving tree index structure in EPLQ to decrease query time. The security aspects of EPLQ have been validated by a comprehensive security audit. Additionally, comprehensive testing is conducted, and the results show that EPLQ excel

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Dr. Arend L Mapanawang, Sp.PD, FINASIM, PhD

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