Privacy-preserving file sharing on cloud storage with certificateless signcryption

Thorncharoensri, Pairat; Susilo, Willy; Chow, Yang-Wai

doi:10.1016/j.tcs.2022.02.033

Cited by 6 publications

(1 citation statement)

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“…A certificateless cryptosystem is proposed to deal with the key escrow problem. It can realize efficient and secure transmission of broadcast ciphertext [5][6][7][8]. Considering the same broadcast ciphertext may be generated by different encryption methods, it will occupy bandwidth resources on resourcelimited devices, limit the applicability of the application environment, and cause great inconvenience and waste of space.…”

Section: Introductionmentioning

confidence: 99%

Certificateless broadcast signcryption scheme supporting equality test in smart grid

Niu,

Dong,

Fang

2023

PLoS ONE

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With the development of cloud computing and the application of Internet of Things (IoT) in the smart grid, a massive amount of sensitive data is produced by the terminal equipment. This vast amount of data is subject to various attacks during transmission, from which users must be protected. However, most of the existing schemes require a large amount of network bandwidth resources and cannot ensure the receiver’s anonymity. To solve these shortcomings, we construct a broadcast signcryption scheme supporting equality test based on certificateless cryptosystem. The scheme employs a symmetric encryption algorithm to improve encryption and transmission efficiency; The Lagrange interpolation theorem is used to encrypt the user’s identity to ensure the privacy preservation of terminal devices; And a trusted third party is used to eliminate duplicated ciphertext for identical messages using an equality test, resulting in efficient network bandwidth utilization. Experimental analysis shows that our work has greater advantages in the field of practical broadcast services.

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Section: Introductionmentioning

confidence: 99%