A sustainable certificateless authenticated searchable encryption with multi-trapdoor indistinguishability

Mohammed Raouf Senouci (), Ilyas Benkhaddra (), Abdelkader Senouci () and Fagen Li ()
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Mohammed Raouf Senouci: University of Electronic Science and Technology of China
Ilyas Benkhaddra: University of Electronic Science and Technology of China
Abdelkader Senouci: Northumbria University
Fagen Li: University of Electronic Science and Technology of China

Telecommunication Systems: Modelling, Analysis, Design and Management, 2024, vol. 86, issue 1, No 15, 213-227

Abstract: Abstract Nowadays, users often opt to encrypt their sensitive data before outsourcing it to the cloud. While this encryption ensures data privacy, it compromises the search functionality. Public key encryption with keyword search (PEKS) has been posited as a potential solution to this challenge. However, many PEKS schemes are either inefficient or vulnerable to various types of attacks, such as inside keyword guessing attacks, outside keyword guessing attacks, etc. In response, we introduce a sustainable certificateless authenticated encryption system with a keyword search scheme. To the best of our knowledge, this proposed scheme is the first to consider multi-trapdoor indistinguishability within the certificateless primitive. Furthermore, our in-depth security analysis indicates that our scheme effectively protects against both online and offline keyword guessing attacksAdditionally, it ensures semantic security by offering both ciphertext indistinguishability and multi-trapdoor indistinguishability. Performance analysis results also suggest that our scheme is efficient and superior to existing alternatives.

Keywords: Authenticated searchable encryption; Multi-trapdoor indistinguishability; Keyword guessing attack; Certificateless encryption; Bilinear pairing (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s11235-024-01121-w

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