检索结果-内蒙古大学图书馆

16th International Workshop on Information security Applications, WISA 2015

作者： Liu, Renzhang Pan, Yanbin Key Laboratory of Mathematics Mechanization Academy of Mathematics and Systems Science NCMIS Chinese Academy of Sciences Beijing100190 China Science and Technology on Communication Security Laboratory Chengdu610041 China

ISBN: (纸本)9783319318745

Lattice basis reduction algorithms, such as LLL, play a very important role in cryptography, which usually aim to find a lattice basis with good "orthogonality". However, not every lattice has an orthogonal basis, which means that we can only find some nearly orthogonal bases for these lattices. In this paper, we show that every integral lattice must have two types of special bases related to the orthogonality. First, any integral lattice with rank more than 1 has a class of bases such that the angle between any two basis vectors lies in [ π 3 , 2π 3 ]. Second, any integral lattice with rank more than 2 has a class of bases such that any basis can be divided into two sets and the vectors in every set are pairwise orthogonal. To obtain such results, we introduce the technique called unimodular congruence transformation for the Gram matrix. © Springer International Publishing Switzerland 2016.

关键词： Linear transformations

来源：评论

学校读者我要写书评

暂无评论

A Classification and Identification technology of TLS Encrypted Traffic Applications 4

A Classification and Identification Technology of TLS Encryp...

引用

2021 IEEE 4th International Conference on Big Data and Artificial Intelligence, BDAI 2021

作者： Zhao, Yue Yang, Yarang Niu, Yiru Wu, Kaijun Hao, Yao Su, Hong Zhao, Qi Science and Technology on Communication Security Laboratory Chengdu610041 China Kashi University College of Physics and Electrical Engineering Kashi84006 China The Thirtieth Research Institute of China Electronic Technology Group Corporation Chengdu610041 China

ISBN: (纸本)9781665412704

In the paper, regarding the transport layer security encrypted traffic of the Internet, the application program identification and application protocol classification technology of encrypted traffic based on hidden Markov model and long short-term memory networks are studied, and the encrypted traffic detection prototype is constructed. The experimental results show that in terms of web application, real-time transport protocol and other encrypted traffics, the prototype can make accurate classification and identification, and the accuracy rate is generally higher than 96.5%, the recall rate higher than 92.0%, and the classification and identification time is less than 0.2 seconds, whereby the proposed method can improve the classification accuracy and real-time detection performance. © 2021 IEEE.

关键词： Hidden Markov models

来源：评论

学校读者我要写书评

暂无评论

Research on Data security of Unmanned Aerial Vehicles

Research on Data Security of Unmanned Aerial Vehicles

引用

2021 International Conference on Networking and Network Applications, NaNA 2021

作者： Chen, Yuxiang Hao, Yao Wu, Kaijun Yi, Zhongqiang Peng, Haiyang Sijie, Liao Science and Technology on Communication Security Laboratory Chengdu610041 China No.30 Inst China Electronics Technology Group Corporation China China Electronics Technology Cyber security Co. Ltd China

ISBN: (纸本)9781665441582

With the development of unmanned platforms, there are large numbers of unmanned aerial vehicles(UAVs), due to UAVs' new features such as lightweight, high speed mobility and heterogeneous, UAVs are facing great challenges of data security. As a key means to protect data security, cryptography is of great significance. Traditional mature and complete cryptography schemes need to be adjusted to meet the new features of UAVs. We start with the security challenges faced by UAV architecture, then analyze the cryptographic technologies that can be applied. By comparing with existing researching schemes, we shows the advantages of different cryptographic technologies in the security protection of unmanned platforms and looks forward to the future. © 2021 IEEE.

关键词： Cryptography

来源：评论

学校读者我要写书评

暂无评论

Linearized microwave downconversion link based on fast and intelligent impairment equalization for noncooperative systems

引用

Chinese Optics Letters 2023年第2期21卷 143-147页

作者：陈智宇钟欣蒋林徐嘉鑫刘静娴盘艳周涛 Key Laboratory of Science and Technology on Electronic Information Control Chengdu 610029China Center for Information Photonics&Communications School of Information Science&TechnologySouthwest Jiaotong UniversityChengdu 610031China Science and Technology on Communication Security Laboratory Institute of Southwestern CommunicationChengdu 610041China

We experimentally demonstrated the use of intelligent impairment equalization(IIE)for microwave downconversion link linearization in noncooperative *** an equalizer is realized based on an artificial neural network(ANN).Once the training process is completed,the inverse link transfer function can be *** the inverse transformation for the detected signal after transmission,the third-order intermodulation distortion components are suppressed significantly without requiring any prior information from an input RF ***,fast training speed is achieved,since the configuration of ANN-based equalizer is *** results show that the spurious-free dynamic range of the proposed link is improved to 106.5 dB·Hz^(2/3),which is 11.3 dB higher than that of a link without ***,the training epochs reduce to only five,which has the potential to meet the practical engineering requirement.

关键词： microwave photonics linearized downconversion link intelligent impairment equalization artificial neural network

来源：评论

学校读者我要写书评

暂无评论

Improvement of chopchop attack

Improvement of chopchop attack

引用

2nd International Conference on Information Engineering and Applications, IEA 2012

作者： Ji, Qingbing Zhang, Lijun Yu, Fei China Electronics Technology Group Corporation 30 Group Science and Technology on Communication Security Laboratory Venture Road No. 6 High-tech Development Zone Chengdu 610041 China

ISBN: (纸本)9781447148463

Wired equivalent privacy (WEP) is a security protocol in the IEEE 802.11 wireless standard. At present, three attacks are frequently exploited: chopchop attack, Korek attack, and PTW attack. The first can decrypt a packet, while the latter two could recover user's key from known plaintext/ciphertext pairs. We propose more efficient combinational mode of these attacks, and also improve chopchop attack. Our chopchop version does not need to recover the integrity check value (ICV), which reduces 32 data frames forgery. Counting in case of data payload with average length 1,156 bytes, our combinational mode "chopchop + PTW" saves 1,141 bytes plaintext recovery, improving efficiency by 98 %. Furthermore, the mode "chopchop + Korek + PTW" saves 1,154 bytes plaintext recovery, receiving 99 % efficiency improvement. Meanwhile, our attack modes greatly reduce the risk of being detected. So it is more suitable for the real environment, especially when there is no client or low data communication. © 2013 Springer-Verlag.

关键词： IEEE Standards

来源：评论

学校读者我要写书评

暂无评论

Deciding irreducibility/indecomposability of feedback shift registers is NP-hard

arXiv

引用

arXiv 2017年

作者： Wang, Lin Science and Technology on Communication Security Laboratory Chengdu610041 China

Feedback shift registers(FSRs) are a fundamental component in electronics and secure communication. An FSR f is said to be reducible if all the output sequences of another FSR g can also be generated by f and the FSR g has less memory than f. An FSR is said to be decomposable if it has the same set of output sequences as a cascade connection of two FSRs. It is proved that deciding whether FSRs are irreducible/indecomposable is *** Codes 68Q25, 94A55, 94C15 Copyright © 2017, The Authors. All rights reserved.

关键词： Feedback

来源：评论

学校读者我要写书评

暂无评论

The Forensic Analysis of WeChat Message

The Forensic Analysis of WeChat Message

引用

2016 Sixth International Conference on Instrumentation and Measurement,Computer,communication and Control (IMCCC2016)(第六届仪器测量、计算机通信与控制国际会议)

作者： Lijun Zhang Fei Yu Qingbing Ji Science and Technology on Communication Security Laboratory Chengdu 610041 China

ISBN: (纸本)9781509011964

WeChat is a popular instant messaging application on Android,iPhone and BlackBerry smart phones,whose chat messages are all stored in local installation *** paper studied the data forensic techniques of WeChat messages including the identification of storage location,storage structure and information extraction *** the text message is stored in encrypted SQLite database,we detailedly analyze its cryptographic algorithm,key derivation principle and present the corresponding database decryption process in different practical forensic *** addition,we exploit the data recovery of voice and deleted messages which would also be helpful in data forensic for criminal investigation.

关键词： WeChat database decryption key derivation data forensics

来源：评论

学校读者我要写书评

暂无评论

Asymmetric Group Key Agreement Protocol from Short Signatures 8

Asymmetric Group Key Agreement Protocol from Short Signature...

引用

8th IEEE International Conference on Computer and communications, ICCC 2022

作者： Shen, Kunyu Zhang, Lei Zhang, Rui Fang, Qihao Shanghai Key Laboratory of Trustworthy Computing Software Engineering Institute East China Normal University Shanghai200062 China Science and Technology on Communication Security Laboratory Sichuan Chengdu610041 China

ISBN: (纸本)9781665450515

Asymmetric group key agreement allows a group of users to negotiate a public encryption key that corresponds to several decryption keys, and each decryption key can only be computed by one group member. This novel notion ensures the confidentiality of communication among group members and allows any external entity to send messages to the group. However, the existing authenticated asymmetric group key agreement protocols are designed in identity-based cryptosystem or certificateless public key cryptosystem, which are not widely deployed. In this paper, we propose an efficient authenticated asymmetric group key agreement protocol. The protocol captures the security of secrecy, known-key security, key-compromise impersonation, unknown key-share and key control while being resistant to active attacks. The security of our protocol is reduced to the k-BDHE problem. © 2022 IEEE.

关键词： Public key cryptography

来源：评论

学校读者我要写书评

暂无评论

MPC-Based Privacy-Preserving Serverless Federated Learning 3

MPC-Based Privacy-Preserving Serverless Federated Learning

引用

3rd International Conference on Big Data, Artificial Intelligence and Internet of Things Engineering, ICBAIE 2022

作者： Zhong, Liangyu Zhang, Lei Xu, Lin Wang, Lulu East China Normal University Shanghai Key Laboratory of Trustworthy Computing Software Engineering Institute Shanghai200062 China Science and Technology on Communication Security Laboratory Sichuan Chengdu610041 China

ISBN: (数字)9781665451604

ISBN: (纸本)9781665451604

Federated learning (FL) enables multiple users to collaboratively train a global model by keeping their data sets local. Since a single server is used, traditional FL faces the single point of failure problem. An available approach is to adopt a serverless architecture. However, most of existing serverless FL schemes fail to protect gradient privacy, except for a few schemes that adopt differential privacy (DP) where the global model accuracy will decrease. To address these problems, we propose a privacy-preserving serverless FL scheme based on secure multiparty computation (MPC). Combining multiple cryptographic primitives (e.g., key agreement and symmetric encryption), our scheme protects gradient privacy in FL and it is accuracy-lossless. By secret sharing, our scheme supports users to quit an FL task in each round during training. © 2022 IEEE.

关键词： Privacy-preserving techniques

来源：评论

学校读者我要写书评

暂无评论

First demonstration of an 8-node Mbps quantum access network based on passive optical distribution network facilities

First demonstration of an 8-node Mbps quantum access network...

引用

Frontiers in Optics + Laser science 2023, FiO, LS 203: Part of Frontiers in Optics + Laser science 2023

作者： Bian, Yiming Pan, Yan Ma, Li Wang, Heng Dou, Jiayi Pi, Yaodi Yang, Jie Li, Yang Huang, Wei Yu, Song Zhang, Yichen Xu, Bingjie State Key Laboratory of Information Photonics and Optical Communications School of Electronic Engineering Beijing University of Posts and Telecommunications Beijing100876 China Science and Technology on Communication Security Laboratory Institute of Southwestern Communication Chengdu610041 China

Quantum access network with 8 nodes and a secret key rate of over 6 Mbps per user is firstly demonstrated using passive optical distribution network facilities, paving the way of high-performance and scalable quantum-... 详细信息

ISBN: (纸本)9781957171296

关键词： Frequency division multiplexing Optical networks Passive optical networks Quantum key distribution Signal processing Wavelength division multiplexing

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：