Dongmei Li

Shanghai University of Engineering Science

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Xiaolei Dong

East China Normal University

Zhenfu Cao

East China Normal University

Xiaomei Zhang

Shanghai University of Engineering Science

Ziqi Jin

Harbin University of Science and Technology

Haijiang Wang

Southern University of Science and Technology

Jue Chen

Peking University

Shanzhen Lan

Communication University of China

Xinwei Wang

Harbin Institute of Technology

Xiaomei Zhang

Beijing Proteome Research Center

Xihe Qiu

Shanghai University of Engineering Science

Cooperative Institutions

Shanghai University of Engineering Science

Tsinghua University

Shanghai Jiao Tong University

Chinese Academy of Sciences

Beijing Jiaotong University

Sun Yat-sen University

Zhejiang University

Peking University

Xinjiang Production and Construction Corps

Southern University of Science and Technology

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A trusted and regulated data trading scheme based on blockchain and zero‐knowledge proof

IET Blockchain (2024)

Dongmei Li Xiaohui Ke Xiaomei Zhang Yujin Zhang

Abstract To meet the demand for high‐quality healthcare services, data trading can effectively promote the circulation of medical data and improve the level of healthcare services. To address the existing problems of data regulation difficulties and data privacy leakage in medical data trading, a trusted and regulated data trading scheme based on blockchain and zero‐knowledge proof is proposed. In this scheme, a regulatory institution is introduced to control the issuance of authorized tokens and ensure the controllability of data sharing activities. The blockchain takes over the task of generating public parameters to reduce the computational overhead of the system. Based on homomorphic proxy re‐encryption technology, users can perform data analysis in the cloud to ensure data security. Smart contracts and zero‐knowledge proof technology can automatically verify the validity of data to protect the rights and interests of data users; at the same time, efficient consensus algorithms can also increase the rate of transactions processed by the blockchain system. Finally, as the security and performance analysis shows, the scheme in this paper has better security, higher efficiency and more comprehensive functions.

Zero-knowledge proof

Proof of concept

Direct Anonymous Attestation

Zero (linguistics)

10.1049/blc2.12070

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Citations (3)

QoS-driven resource allocation in fog radio access network: A VR service perspective

Mathematical Biosciences & Engineering (2024)

Wenjing Lv Jue Chen Songlin Cheng Xihe Qiu Dongmei Li

<abstract><p>While immersive media services represented by virtual reality (VR) are booming, They are facing fundamental challenges, i.e., soaring multimedia applications, large operation costs and scarce spectrum resources. It is difficult to simultaneously address these service challenges in a conventional radio access network (RAN) system. These problems motivated us to explore a quality-of-service (QoS)-driven resource allocation framework from VR service perspective based on the fog radio access network (F-RAN) architecture. We elaborated details of deployment on the caching allocation, dynamic base station (BS) clustering, statistical beamforming and cost strategy under the QoS constraints in the F-RAN architecture. The key solutions aimed to break through the bottleneck of the network design and to deep integrate the network-computing resources from different perspectives of cloud, network, edge, terminal and use of collaboration and integration. Accordingly, we provided a tailored algorithm to solve the corresponding formulation problem. This is the first design of VR services based on caching and statistical beamforming under the F-RAN. A case study provided to demonstrate the advantage of our proposed framework compared with existing schemes. Finally, we concluded the article and discussed possible open research problems.</p></abstract>

C-RAN

Access network

Virtual network

10.3934/mbe.2024068

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Research on Dynamic Searchable Encryption Method Based on Bloom Filter

Applied Sciences (2024)

Ziqi Jin Dongmei Li Xiaomei Zhang Zhi Cai

Data outsourcing has become more and more popular due to its low cost and flexibility. However, there is a problem that the cloud server used to store data is partially trusted. Searchable encryption is an efficient technology that is devoted to helping people conduct accurate searches without leaking information. Nonetheless, most existing schemes cannot support dynamic updates or meet the privacy requirements of all users. There have been some experiments to solve these issues by implementing a dynamically searchable asymmetric encryption scheme. This paper proposes an efficient searchable encryption scheme based on the Authenticator Bloom Filter (ABF). The solution can support dynamic updates and multiple users and meet forward and backward security. This paper uses an ABF to improve the efficiency of searches and updates while playing a significant role in dynamic updates. This paper designs a new token encryption scheme and file set encryption scheme, which not only helps users reduce time in searches and updates but also supports multi-user modes. Experiments show that the proposed scheme takes less time in searching and updating algorithms, especially when the keyword does not exist. The solution also takes into account the problem of history storage when updating, which reduces the unnecessary consumption of memory and avoids multiple storage states for the same file.

Bloom filter

10.3390/app14083379

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Research on dynamic searchable encryption method based on Bloom filter

Research Square (Research Square) (2024)

Ziqi Jin Dongmei Li Xiaomei Zhang

Abstract Data outsourcing become more and more popular due to its low cost and flexibility. However, there is a problem that the cloud server used to store data is partially trusted. Searchable encryption is an efficient technology is devoted to helping people conduct accurate searches without leaking information. Nonetheless, most existing schemes can’t support dynamic update or meet the privacy requirements of all users. There have been some experiments to solve these issues by implementing a dynamically searchable asymmetric encryption scheme. This paper proposes an efficient searchable encryption scheme based on the Authen-ticator Bloom Filter (ABF). The solution can support dynamic update, multiuser and meet the forward and backward security. This paper uses ABF to improve the efficiency of search and update, while playing a significant role in dynamic update. This paper designs a new token encryption scheme and file set encryption scheme, which not only helps users reduce time in search and update, but also supports multiuser mode. Experiments show that the proposed scheme takes less time in searching and updating algorithms, especially when the keyword does not exist. The solution also takes into account the problem of history storage when updating, which reduces the unnecessary consumption of memory and avoids multiple storage states of the same file.

Bloom filter

Bloom

10.21203/rs.3.rs-3995449/v1

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Efficient Dynamic symmetric Searchable Encryption with Forward and Backward Security

Ziqi Jin Dongmei Li

10.1109/eeiss62553.2024.00009

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A Secure Blockchain-Assisted Access Control Scheme for Smart Healthcare System in Fog Computing

IEEE Internet of Things Journal (2023)

Jiahao Li Dongmei Li Xiaomei Zhang

IoT-based smart healthcare system (SHS) allows doctors to monitor and diagnose patients remotely, which can greatly ease overcrowding in the hospitals and disequilibrium of medical resources, especially during the rage of COVID-19. However, the SHS generates enormous data which contains sensitive personal information. To protect patients' privacy, we propose a secure blockchain (BC)-assisted access control scheme for SHS in fog computing. All the operations of users are recorded on the BC by smart contract in order to ensure transparency and reliability of the system. We present a BC-assisted multiauthority attribute-based encryption (MA-ABE) scheme with keyword search to ensure the confidentiality of the data, avoid single point of failure and implement fine-grained access control of the system. IoT devices are limited in resources, therefore it is not practical to apply the BC-assisted MA-ABE scheme directly. To reduce the burdens of IoT devices, We outsource most of the computational tasks to fog nodes. Finally, the security and performance analysis demonstrate that the proposed system is reliable, practical, and efficient.

10.1109/jiot.2023.3268278

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Citations (30)

The Development of Design Concept of Highway at Home and Abroad

Communications Standardization (2007)

Dongmei Li

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Study on Technical Measure of Fast-growing Forest

Dongmei Li

From six aspects of technical measures plantation cultivation were discussed and made a foster-speed production forests, forestry revitalization of the economy were a necessary measure.

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Entanglement swapping of tripartite entangled coherent state by linear optics devices

Chinese Journal of Quantum Electronics (2009)

Dongmei Li

A scheme for the entanglement swapping of entangled states with continuous variable is presented, in which the bipartite maximally entangled coherent state serves as the quantum channel.With the help of the idea of teleportation,using beam splitter and phase-shifter,entanglement swapping of tripartite entangled coherent state can be realized.In this scheme,the entanglement swapping is failure only for one measurement process.The failure probability is very small.The detail results show that the probability and the minimum of total average fidelity for successful swapping an arbitrary tripartite entangled coherent state is nearly 1 when the mean number of photons is larger than 2.

Quantum teleportation

Beam splitter

Multipartite entanglement

Teleportation

Photon entanglement

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A new near-lossless image compression algorithm suitable for hardware design in wireless endoscopy system

Xiang Xie Guolin Li Dongmei Li Chun Zhang Zhihua Wang

In order to decrease the communication bandwidth and save the transmitting power in the wireless endoscopy capsule, this paper presents a new near-lossless image compression algorithm suitable for hardware design based on the Bayer format image. This algorithm can provide low average compression rate (2.12 bits/pixel) with high image quality (larger than 53.11 dB) for endoscopic images. Especially, it has low complexity hardware overload and supports real-time compressing. In addition, the algorithm can provide lossless compression for the region of interest (ROI) and high quality compression for other regions. The ROI can be selected arbitrarily by varying ROI parameters.

Region of interest

Data compression ratio

10.1109/icip.2005.1529953

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Citations (8)