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The autocorrelation distribution of balanced Boolean function

Frontiers of Computer science 2013年第2期7卷 272-278页

作者： Yu ZHOU Weiguo ZHANG Juan LI Xinfeng DONG Guozhen XIAO Science and Technology on Communication Security Laboratory China Chengdu 610041 State Key Laboratory of Integrated Service Networks Xidian UniversityChina Xi'an 710071 Foreign Language Department Emei Campus Southwest Jiaotong University China Emei 614202 State Key Laboratory of Information Security Chinese Academy of SciencesChina Beijing 100093

The global avalanche characteristics （the sum- of-squares indicator and the absolute indicator） measure the overall avalanche characteristics of a cryptographic Boolean function. Sung et al. （1999） gave the lower bound on the sum- of-squares indicator for a balanced Boolean function satisfy- ing the propagation criterion with respect to some vectors. In this paper, if balanced Boolean functions satisfy the propaga- tion criterion with respect to some vectors, we give three nec- essary and sufficient conditions on the auto-correlation distri- bution of these functions reaching the minimum the bound on the sum-of-squares indicator. And we also find all Boolean functions with 3-variable, 4-variable, and 5-variable reaching the minimum the bound on the sum-of-squares indicator.

关键词： Boolean functions auto-correlation distribu-tion global avalanche characteristics balanced propagationcriterion

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Expression Tree-based Policy Conflict Detection Algorithm

Expression Tree-based Policy Conflict Detection Algorithm

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2021 International Conference on Networking and Network Applications, NaNA 2021

作者： Wang, Xue Zhang, Hao Wu, Kaijun Science and Technology on Communication Security Laboratory Chengdu610041 China No.30 Research Institute of China Electronics Technology Group Corporation Chengdu610041 China China Electronics Technology Cyber Security Co. Ltd Chengdu610041 China

ISBN: (纸本)9781665441582

In attribute-based access control services, there are problems such as cumbersome policy control, prone to authorization conflicts, and conflicts caused by complex attribute structures are not easy to identify. Due to the difficulty of the conflict detection problem, most of the detection methods have strict requirements for policy structure. Normally, the priority strategy are chosen uniformly when using the directed acyclic graph approach to disambiguate conflict rule pairs. The present methods are not thorough, flexible and user-friendly for the policy design in practical applications. To address these problems, an access control policy conflict detection algorithm based on intersection of target expression trees under the XACML (eXtensible Access Control Markup Language) specification is proposed. The method efficiently locates the conflict rule pairs based on the index structure through policy tree and rule effects, determines the conflict by expression comparison n, and marks the possible causes of the conflict, provides analysis of the disambiguation scheme, and achieves access control with fine granularity. © 2021 IEEE.

关键词： Authorization

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Data security Storage Scheme For UAV Cluster Based On Distributed Storage

Data Security Storage Scheme For UAV Cluster Based On Distri...

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2023 International Conference on Networking and Network Applications, NaNA 2023

作者： Wu, Kaijun Tian, Bo Wang, Xue Science and Technology on Communication Security Laboratory Chengdu610041 China No.30 Research Institute of China Electronics Technology Group Corporation Chengdu610041 China China Electronics Technology Cyber Security Co. Ltd Chengdu610041 China

ISBN: (纸本)9798350327380

UAVs have been widely used in various fields such as emergency rescue and disaster relief, weather detection, scientific research measurement, aerial surveying and mapping, and military reconnaissance. The concept of unmanned aerial vehicle (UAV) swarm is proposed and used, which solves the disadvantages of a single unmanned aerial vehicle with small load and weak information processing and storage capabilities. UAV swarms integrate computing resources and storage resources through the interconnection of individual UAVs, effectively improving the load capacity and information storage capabilities of unmanned swarms. However, there are many uncertain privacy issues in the use of UAV clusters. UAVs are at risk of being damaged, lost and captured, and the data stored on UAVs will be leaked. Therefore, it is necessary to build a safe storage scheme for unmanned swarm data to ensure that the data of unmanned swarms can be stored and used safely. This paper proposes a UAV cluster data security storage scheme based on distributed storage. Each UAV acts as a storage node to build an interstellar file system for distributed storage and shared files. UAV clusters use this system to encrypt and protect data, redundant fragmentation and distributed storage to realize the concealment and confidentiality of distributed storage and sharing of UAV cluster data. Ensure the integrity of data and enhance the invulnerability of safe storage of UAV cluster data. © 2023 IEEE.

关键词： Unmanned aerial vehicles (UAV)

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An efficient authentication scheme based on Zero Trust for UAV swarm

An efficient authentication scheme based on Zero Trust for U...

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2021 International Conference on Networking and Network Applications, NaNA 2021

作者： Yang, Dongyu Zhao, Yue Wu, Kaijun Guo, Xiaoyu Peng, Haiyang Science and Technology on Communication Security Laboratory Chengdu610041 China No.30 Research Institute of China Electronics Technology Group Corporation Chengdu610041 China China Electronics Technology Cyber Security Co. Ltd Chengdu610041 China

ISBN: (纸本)9781665441582

In recent years, the concept of UAV (Unmanned Aerial Vehicle) swarm has been proposed and developed, which effectively solves the shortcomings of relatively small payload and relatively weak information perception processing capability in a single UAV operation. The research and application of UAV swarm technology has become an important direction of the development of UAV technology. UAV swarm not only can effectively improve the load capacity and information processing capacity through close cooperation between single UAV, but also has a high "self-healing"ability and strong robustness. However, due to the limited computing resources and complex external environment of UAVs, UAV swarm are vulnerable to forgery attacks, man-in-the-middle attacks and reply attacks. It is necessary to establish an authentication scheme to ensure the legitimate and reliable identity of UAVs for data exchange and sharing. However, traditional authentication schemes based on username, password or dynamic key have lower security levels, while RSA authentication requires a long session key and cannot meet the lightweight requirements in an UAV swarm. Based on the analysis and summary of existing authentication technologies and the special requirements of UAV swarm for cyber security, this paper puts forward an authentication scheme based on Zero Trust, achieves rapid authentication of UAV swarm in data exchange and sharing, and strengthens its ability to respond to cyber attacks. © 2021 IEEE.

关键词： Cybersecurity

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A secure and anonymous communication scheme based on Internet public service environment

A secure and anonymous communication scheme based on Interne...

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2022 International Conference on Networking and Network Applications, NaNA 2022

作者： Wu, Kaijun Tian, Bo Wang, Xue Zhao, Qi Science and Technology on Communication Security Laboratory Chengdu610041 China No.30 Research Institute of China Electronics Technology Group Corporation Chengdu610041 China China Electronics Technology Cyber Security Co. Ltd Chengdu610041 China

ISBN: (数字)9781665461313

ISBN: (纸本)9781665461313

With the continuous expansion of the Internet and the full popularization of intelligent terminal devices, the risk of a large amount of personal privacy data such as identity, location, and preferences being leaked during Internet communication is getting higher and higher. Although the existing cryptographic technologies such as encryption and authentication can realize the security of information content and can effectively prevent attackers from obtaining information illegally, they cannot prevent attackers from obtaining important information such as the location and identity of nodes through eavesdropping and traffic analysis. The secure and anonymous communication technology represented by Tor has always been the focus of researchers. It is essential to realize free and open communication on today's Internet, but it is usually only when large institutions invest huge resources to complete the construction of a secure and anonymous system. This paper proposes a method for constructing a secure and anonymous transmission network based on Internet public services (such as VPS, cloud storage services, P2P networks, etc.), and at the same time, a redundant sharding mechanism is designed to improve the transmission capacity. Then complete the construction of the system prototype by renting a virtual host, and realize the practical ability test of the safe and anonymous system. Provide small-scale and convenient secure and anonymous transmission capabilities in emergencies such as epidemics. © 2022 IEEE.

关键词： Cryptography

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Efficient registration-based signature schemes

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Journal of Systems Architecture 2025年 166卷

作者： Zhenhua Liu Yujing Yuan Zhiqing Chen Yu Han Baocang Wang School of Mathematics and Statistics Xidian University Xi’an 710071 China Science and Technology on Communication Security Laboratory Chengdu 610041 China School of Cyber Engineering Xidian University Xi’an 710071 China State Key Laboratory of Integrated Services Networks Xidian University Xi’an 710071 China

Registration-based cryptography is a newly emerging variant of the public-key cryptosystem that addresses the key-escrow issue inherent in identity-based encryption. However, the key-escrow problem in identity-based signature remains to be solved. In this work, we present a basic registration-based signature (RBS) scheme, which removes the trusted third-party that generates secret keys in identity-based signature. In the proposed basic RBS scheme, a trie tree is used to expand the identity space for supporting large space of users’ identities (e.g., arbitrary strings), and vector commitment is utilized to bind public key to user’s identity and accumulate the registered public keys that enable the verification. The basic scheme is proven to be EUF-CMA based on the CDH assumption in the random oracle model. What is more, we provide two improvements for the basic scheme, including an adaptive RBS scheme and an updatable RBS scheme. Finally, the simulated implementation shows the proposed basic RBS scheme is practical and viable on a scale encompassing millions of users.

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A Design Scheme and security Analysis of Unmanned Aerial Vehicle 12th

A Design Scheme and Security Analysis of Unmanned Aerial Veh...

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12th International Conference on Wireless and Satellite Services, WiSATS 2021

作者： Yang, Dongyu Zhao, Yue Wu, Kaijun Yi, Zhongqiang Peng, Haiyang Science and Technology on Communication Security Laboratory Chengdu610041 China No. 30 Research Institute of China Electronics Technology Group Corporation Chengdu610041 China China Electronics Technology Cyber Security Co. Ltd. Chengdu610041 China

ISBN: (纸本)9783030933975

Since the 21st century, informatization, modernization and intellectualization have become an important direction of national science and technology development. Especially in recent years, with the continuous improvement and perfection of artificial intelligence, 5G, edge computing and autonomous unmanned technology, the UAV industry has made unprecedented development and has been applied to many fields of military and civil, such as: information collection, investigation and combat integration, geological mapping, border defense inspection, emergency rescue, power inspection, traffic supervision, intelligent logistics, pesticide spraying, meteorological monitoring, etc. However, with the continuous development of UAV business, more and more researchers realize that UAV depends on security and effective information system and network connection, and the cyber security problem of UAV is becoming increasingly prominent. The cyber security research of UAV has become a new subject. This paper first elaborates the development of UAV through a large number of researches. Secondly, according to the current development status of UAV, the future development trend of UAV is analyzed. Then, focusing on the communication, network and system of UAV, the security threats faced by UAV are elaborated and analyzed in detail. After that, the new cyber security problems caused by UAV are analyzed from three aspects of important infrastructure security, public security and privacy security. Finally, the paper gives suggestions on the future development of UAV from the perspective of cyber security, which provides a strong support for solving the cyber security problems of UAV. © 2022, ICST Institute for Computer sciences, Social Informatics and Telecommunications Engineering.

关键词： Unmanned aerial vehicles (UAV)

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A Survey of Edge Computing Resource Allocation Strategies Based on Federated Learning

A Survey of Edge Computing Resource Allocation Strategies Ba...

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2023 International Conference on Networking and Network Applications, NaNA 2023

作者： Ni, Siyuan He, Yuanhang Chen, Lei Wang, Yuyao Yu, Fei Science and Technology on Communication Security Laboratory Chengdu610041 China No.30 Research Institute of China Electronics Technology Group Corporation Chengdu China

ISBN: (纸本)9798350327380

In the edge computing environment, the data on edge computing is at risk of leakage due to the variety and wide distribution of nodes. As a new distributed machine learning framework, federated learning can effectively solve the privacy and security problems of users' information data in different fields. However, in federated learning, with the continuous landing of AI applications and the growing demand for model reasoning services, the resources consumed by federated learning will exceed the computing power of edge computing, so it is necessary to study the resource allocation strategy of edge computing for federated learning. This paper first introduces the concepts of federated learning and edge computing, and resource allocation strategies based on edge computing;Then it introduces the challenges faced by federated learning and the operating system framework of edge computing based on federated learning;Secondly, it combs the resource allocation strategy of edge computing based on federated learning;Finally, the paper summarizes the work of the full text and analyzes the future development trend of resource allocation under Federated learning. © 2023 IEEE.

关键词： Resource allocation

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IDV:Internet Domain Name Verification Based on Blockchain

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Computer Modeling in Engineering & sciences 2021年第10期129卷 299-322页

作者： Ning Hu Yu Teng Yan Zhao Shi Yin Yue Zhao Cyberspace Institute of Advanced Technology Guangzhou UniversityGuangzhou510006China Zhong Zi Hua Ke Traffic Construction Technology Co. Ltd.Beijing100195China Science and Technology on Communication Security Laboratory Chengdu610041China

The rapid development of blockchain technology has provided new ideas for network security ***-based network security enhancement solutions are attracting widespread *** paper proposes an Internet domain name verification method based on *** authenticity of DNS(Domain Name System)resolution results is crucial for ensuring the accessibility of Internet *** to the lack of adequate security mechanisms,it has always been a challenge to verify the authenticity of Internet domain name resolution *** the solution represented by DNSSEC(Domain Name System security Extensions)can theoretically solve the domain name verification problem,it has not been widely deployed on a global scale due to political,economic,and technical *** argue that the root cause of this problem lies in the significant centralization of the DNS *** centralized feature not only reduces the efficiency of domain name verification but also has the hidden risks of single point of failure and unilateral *** users may disappear from the Internet due to the results of fake,subverted,or misconfigured domain name *** paper presents a decentralized DNS cache verification method,which uses the consortium blockchain to replace the root domain name server to verify the authenticity of the domain *** with DNSSEC’s domain name verification process,the verification efficiency of this method has increased by 30%,and there is no single point of failure or unilateral control *** addition,this solution is incrementally deployable,and even if it is deployed on a small number of content delivery network servers,satisfactory results can be obtained.

关键词： Blockchain-based network security DNS security DNS decentralization CDN

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Modulation noise model for multi-carrier Gaussian modulated continuous-variable quantum key distribution based on OFDM technology 10

Modulation noise model for multi-carrier Gaussian modulated ...

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Quantum and Nonlinear Optics X 2023

作者： Ye, Ting Wang, Heng Pan, Yan Pi, Yaodi Shao, Yun Gan, Zhiwang Li, Yang Huang, Wei Xu, Bingjie Science and Technology on Communication Security Laboratory Institute of Southwestern Communication Chengdu610041 China China Electronics Technology Group Corporation Beijing100846 China

ISBN: (纸本)9781510667990

In this paper, a multi-carrier Gaussian modulated continuous variable quantum key distribution (CV-QKD) scheme has been proposed based on orthogonal frequency division multiplexing (OFDM) for distributing multiplexing independent secret keys encoded on N subcarriers within a single fiber channel. However, the performance of the system will be significantly influenced by the extra modulation noise in the multi-carrier quantum state preparation. Therefore, a modulation noise model is analyzed in more compact for multi-carrier Gaussian modulated CV-QKD system. Specifically, the gain imbalance and quadrature skew in IQ modulation and the third-order intermodulation effect in N subcarrier modulation are systematically analyzed in the OFDM-based multi-carrier CV-QKD with Gaussian modulation. That is, the IQ imbalance noise and the intermodulation noise are modeled as the modulation noise of the multi-carrier Gaussian modulated CV-QKD system. Moreover, the secure performances of the multi-carrier Gaussian modulated CV-QKD are evaluated based on the proposed modulation noise model. Besides, the simulation results show the SKRs are greatly increased by N independent quantum state preparation, which indicates that the multi-carrier CV-QKD system gets rid of the asymptotic SKR limit of single-carrier CV-QKD system for future high-rate CV-QKD deployment in broadband access network. © 2023 SPIE.

关键词： Orthogonal frequency division multiplexing

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