Efficient Quantum-resistant Delegable Data Analysis Scheme with Revocation and Keyword Search in Mobile Cloud Computing

• URL: http://arxiv.org/abs/2512.12917v1
• Date: Mon, 15 Dec 2025 02:07:52 GMT
• Title: Efficient Quantum-resistant Delegable Data Analysis Scheme with Revocation and Keyword Search in Mobile Cloud Computing
• Abstract summary: We propose an efficient quantum-resistant delegable data analysis scheme with revocation and keyword search.<n>In the proposed scheme, an authorised mobile device can perform keyword searches and compute inner product values over encrypted data.<n>Our scheme is formally proven secure in the standard model against quantum attacks.
• Score: 11.086273195946996
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: With the rapid growth of smart devices and mobile internet, large-scale data processing is becoming increasingly important, while mobile devices remain resource-constrained. Mobile Cloud Computing (MCC) addresses this limitation by offloading tasks to the cloud. Nevertheless, the widespread adoption of MCC also raises challenges such as data privacy, selective computation, efficient revocation, and keyword search. Additionally, the development of quantum computers also threatens data security in MCC. To address these challenges, we propose an efficient quantum-resistant delegable data analysis scheme with revocation and keyword search (EQDDA-RKS) for MCC. In the proposed scheme, an authorised mobile device can perform keyword searches and compute inner product values over encrypted data without disclosing any additional information. Meanwhile, if a user's function key is compromised, it can be revoked. To alleviate the burden on mobile devices, most of the computation which should be executed by the mobile device is outsourced to a cloud server, and the mobile device only needs to interact with a central authority once. Furthermore, an authorised mobile device can temporarily delegate its keyword search and function computation rights to a delegatee in case the device becomes unavailable due to power depletion, going offline, etc. Our scheme is formally proven secure in the standard model against quantum attacks, chosen plaintext attacks, chosen keyword attacks, and outside keyword guessing attacks. Furthermore, the analysis demonstrates that the number of interactions between a mobile device and the central authority is $O(1)$ in our scheme, rather than growing linearly with the number of functions, which is well-suited for MCC scenarios.

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