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144 results on '"Han, Wenbao"'

3. FedTD: Efficiently Share Telemedicine Data with Federated Distillation Learning

Author

Li, Ning, Wang, Nansen, Ou, Wei, Han, Wenbao, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Xu, Yuan, editor, Yan, Hongyang, editor, Teng, Huang, editor, Cai, Jun, editor, and Li, Jin, editor

Published
2023
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4. A Novel Security Scheme for Mobile Healthcare in Digital Twin

Author

Wang, Nansen, Han, Wenbao, Ou, Wei, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Xu, Yuan, editor, Yan, Hongyang, editor, Teng, Huang, editor, Cai, Jun, editor, and Li, Jin, editor

Published
2023
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9. A Novel Logistics Scheme Based on Zero-Trust Model

Author

Wang, Haobo, Ou, Wei, Han, Wenbao, Akan, Ozgur, Editorial Board Member, Bellavista, Paolo, Editorial Board Member, Cao, Jiannong, Editorial Board Member, Coulson, Geoffrey, Editorial Board Member, Dressler, Falko, Editorial Board Member, Ferrari, Domenico, Editorial Board Member, Gerla, Mario, Editorial Board Member, Kobayashi, Hisashi, Editorial Board Member, Palazzo, Sergio, Editorial Board Member, Sahni, Sartaj, Editorial Board Member, Shen, Xuemin, Editorial Board Member, Stan, Mircea, Editorial Board Member, Jia, Xiaohua, Editorial Board Member, Zomaya, Albert Y., Editorial Board Member, Lin, Jingqiang, editor, and Tang, Qiang, editor

Published
2022
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12. A Practical Blockchain Framework for Securing IoT Applications

Author

Chen, Jizhou, Cheng, Jieren, Han, Wenbao, Liu, Xianghui, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Sun, Xingming, editor, Zhang, Xiaorui, editor, Xia, Zhihua, editor, and Bertino, Elisa, editor

Published
2021
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18. Provable Secure Identity Based Generalized Signcryption Scheme

Author

Yu, Gang, Ma, Xiaoxiao, Shen, Yong, and Han, Wenbao

Subjects
Computer Science - Cryptography and Security
Abstract

According to actual needs, generalized signcryption scheme can flexibly work as an encryption scheme, a signature scheme or a signcryption scheme. In this paper, firstly, we give a security model for identity based generalized signcryption which is more complete than existing model. Secondly, we propose an identity based generalized signcryption scheme. Thirdly, we give the security proof of the new scheme in this complete model. Comparing with existing identity based generalized signcryption, the new scheme has less implementation complexity. Moreover, the new scheme has comparable computation complexity with the existing normal signcryption schemes.

Published
2010

20. Accountable Ciphertext-Policy Attribute-Based Encryption Scheme Supporting Public Verifiability and Nonrepudiation

Author

Yu, Gang, Cao, Zhenfu, Zeng, Guang, Han, Wenbao, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Chen, Liqun, editor, and Han, Jinguang, editor

Published
2016
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21. General Pairwise Modification Framework for Reversible Data Hiding in JPEG Images

Author

Zhou, Xiaoyi, Hou, Kaiyue, Zhuang, Yujian, Yin, Zhaoxia, and Han, Wenbao

Abstract

Pairwise modification is one of the most effective ways to solve the critical issues of balancing the embedding capacity, image distortion, and file expansion in JPEG reversible data hiding (RDH). To design a satisfactory scheme based on pairwise modification, existing schemes focus on improving pairing rules, two-dimensional (2D) mappings, or ordering strategies separately while neglecting the connections between them. As a result, once pairing rules are changed, the correlative 2D mapping and ordering strategies are no longer available. To address such issues, this study proposes a framework that automatically generates optimal 2D mappings and efficient ordering strategies only by carefully initializing pairing rules. To construct optimal 2D mappings, a 2D mapping mathematical model is built to form a feasible 2D mapping solution space, in which optimal solutions are found, to assign efficient mappings for pairs with high probability. To design efficient ordering strategies, all frequencies are ranked according to an embedding evaluation model to determine more suitable ACs for data embedding. To initialize better pairing rules, this study selects nonzero ACs within ±2 for interblock pairing to form a more centralized pairwise histogram. The experimental results show that the proposed scheme introduces minor file expansion and obtains better visual quality than existing JPEG RDH schemes when the payload is the same as.

Published
2024
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22. A data sharing method for remote medical system based on federated distillation learning and consortium blockchain.

Author

Li, Ning, Zhang, Ruijie, Zhu, Chengyu, Ou, Wei, Han, Wenbao, and Zhang, Qionglu

Abstract

With the development of Medical Internet of Things (MIoT) technology and the global COVID-19 pandemic, hospitals gain access to patients' health data from remote wearable medical equipment. Federated learning (FL) addresses the difficulty of sharing data in remote medical systems. However, some key issues and challenges persist, such as heterogeneous health data stored in hospitals, which leads to high communication cost and low model accuracy. There are many approaches of federated distillation (FD) methods used to solve these problems, but FD is very vulnerable to poisoning attacks and requires a centralised server for aggregation, which is prone to single-node failure. To tackle this issue, we combine FD and blockchain to solve data sharing in remote medical system called FedRMD. FedRMD use reputation incentive to defend against poisoning attacks and store reputation values and soft labels of FD in Hyperledger Fabric. Experimenting on COVID-19 radiography and COVID-Chestxray datasets shows our method can reduce communication cost, and the performance is higher than FedAvg, FedDF, and FedGen. In addition, the reputation incentive can reduce the impact of poisoning attacks. [ABSTRACT FROM AUTHOR]

Published
2023
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25. Word Oriented Cascade Jump σ−LFSR

Author

Zeng, Guang, Yang, Yang, Han, Wenbao, Fan, Shuqin, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Bras-Amorós, Maria, editor, and Høholdt, Tom, editor

Published
2009
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26. Reducible Polynomial over Constructed by Trinomial σ−LFSR

Author

Zeng, Guang, Yang, Yang, Han, Wenbao, Fan, Shuqin, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Yung, Moti, editor, Liu, Peng, editor, and Lin, Dongdai, editor

Published
2009
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27. A New Scheme for Key Management in Ad Hoc Networks

Author

Li, Guangsong, Han, Wenbao, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Lorenz, Pascal, editor, and Dini, Petre, editor

Published
2005
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47. Random properties of the highest level sequences of primitive sequences over [[Z.sub.[2.sup.e]]

Author

Fan, Shuqin and Han, Wenbao

Subjects
Mathematics -- Research
Abstract

Using the estimates of the exponential sums over Galois rings, we discuss the random properties of the highest level sequences [a.sub.e-1] of primitive sequences generated by a primitive polynomial of degree n over [Z.sub.[2.sup.e]]. First we obtain an estimate of 0, 1 distribution in one period of [a.sub.e-1]. On the other hand, we give an estimate of the absolute value of the autocorrelation function |[C.sub.N] (h)| of [a.sub.e-1], which is less than [2.sup.e-1] ([2.sup.e-1] - 1) [square root of (3 [2.sup.2e] - 1)) [2.sup.n/2] + 2.sup.e-1] for h [not equal to] 0. Both results show that the larger n is, the more random [a.sub.e-1] will be. Index Terms--0, 1 distribution, autocorrelation function, exponential sum over Galois ring, highest level sequence, primitive sequence.

Published
2003

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