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Abstract

Searchable encryption is increasing interest for protecting the data privacy in secure searchable cloud storage. The security of a well-known cryptographic primitive, namely, public key encryption with keyword search (PEKS) which is very useful in many applications of cloud storage. Unfortunately, it has been shown that the traditional PEKS framework suffers from an inherent insecurity called inside keyword guessing attack (KGA) launched by the malicious server. To address this security vulnerability, a new PEKS framework named dual-server PEKS (DS-PEKS). As another main contribution, a new variant of the smooth projective hash functions (SPHFs) referred to as linear and homomorphic SPHF (LH-SPHF). To show a generic construction of secure DS-PEKS from LH-SPHF. To illustrate the feasibility of new framework, provide an efficient instantiation of the general framework from a Decision Diffie– Hellman-based LH-SPHF and show that it can achieve the strong security against inside the KGA.

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How to Cite
Sukumar P, Sharmila M, Swathi G, Ranjani C, & Nandhini G. (2018). Dual-server public-key encryption with keyword search for secure cloud storage . International Journal of Intellectual Advancements and Research in Engineering Computations, 6(2), 1753–1757. Retrieved from https://ijiarec.com/ijiarec/article/view/729