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Certificateless network coding proxy signatures from lattice

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Frontiers of Computer Science 2023年第5期17卷 145-152页

作者： huifang yu Ning WANG School of Cyberspace Security Xi’an University of Posts&TelecommunicationsXi’an 710121China

Network coding can improve the information transmission efficiency and reduces the network resource consumption,so it is a very good platform for information *** proxy signatures are widely applied in information security ***,certificateless proxy signatures based on classical number theory are not suitable for the network coding environment and cannot resist the quantum computing *** view of this,we construct certificateless network coding proxy signatures from lattice(LCL-NCPS).LCL-NCPS is new multi-source signature scheme which has the characteristics of anti-quantum,antipollution and *** LCL-NCPS,each source node user can output a message vector to intermediate node and sink node,and the message vectors from different source nodes will be linearly combined to achieve the aim of improving the network transmission rate and network *** terms of efficiency analysis of space dimension,LCL-NCPS can obtain the lower computation complexity by reducing the dimension of proxy *** terms of efficiency analysis of time dimension,LCL-NCPS has higher computation efficiency in signature and verification.

关键词： lattice multi-source signature scheme proxy signature post-quantum

Certificateless broadcast multi-signature for network coding

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Frontiers of Information Technology & Electronic Engineering 2022年第9期23卷 1369-1377页

作者： huifang yu Zhewei QI School of Cyberspace Security Xi’an University of Posts and TelecommunicationsXi’an710121China

Network coding can save wireless network resources and is very fast in comparison with traditional *** real application scenarios,network coding is vulnerable to pollution attacks and forgery *** solve these problems,the certificateless broadcast multi-signature for network coding(NC-CLBMS)method is devised,where each source node user generates a multisignature about the message vector,and the intermediate node linearly combines the received ***-CLBMS is a multi-source multi-signature method with anti-pollution and anti-forgery advantages;moreover,it has a fixed signature length and its computation efficiency is very ***-CLBMS has extensive application prospects in unmanned aerial vehicle(UAV)communication networks,fifth-generation wireless networks,wireless sensor networks,mobile wireless networks,and Internet of Vehicles.

关键词： Network coding Certificateless multi-signature Linear combination Homomorphic hash function

Post-quantum blind signcryption scheme from lattice

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Frontiers of Information Technology & Electronic Engineering 2021年第6期22卷 891-901页

作者： huifang yu Lu BAI School of Cyberspace Security Xi’an University of Posts and TelecommunicationsXi’an 710121China

Blind signcryption(BSC) can guarantee the blindness and untrackability of signcrypted messages, and moreover, it provides simultaneous unforgeability and confidentiality. Most traditional BSC schemes are based on the number theory. However, with the rapid development of quantum computing, traditional BSC systems are faced with severe security threats. As promising candidate cryptosystems with the ability to resist attacks from quantum computing, lattice-based cryptosystems have attracted increasing attention in academic fields. In this paper, a post-quantum blind signcryption scheme from lattice(PQ-LBSCS) is devised by applying BSC to lattice-based cryptosystems. PQ-LBSCS inherits the advantages of the lattice-based cryptosystem and blind signcryption technique. PQ-LBSCS is provably secure under the hard assumptions of the learning with error problem and small integer solution problem in the standard model. Simulations are carried out using the Matlab tool to analyze the computational efficiency, and the simulation results show that PQ-LBSCS is more efficient than previous schemes. PQ-LBSCS has extensive application prospects in e-commerce, mobile communication, and smart cards.

关键词： Lattice-based cryptosystem Blind signcryption Post-quantum computing Learning with error assumption Small integer solution assumption

Identity-based searchable attribute signcryption in lattice for a blockchain-based medical system

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Frontiers of Information Technology & Electronic Engineering 2024年第3期25卷 461-471页

作者： huifang yu Xiaoping BAI School of Cyberspace Security Xi'an University of Posts&TelecommunicationsXi'an 710121China School of Information Engineering Qinghai Communications Technical CollegeXining 810003China

Electronic healthcare systems can offer convenience but face the risk of data forgery and information *** solve these issues,we propose an identity-based searchable attribute signcryption in lattice for a blockchain-based medical system(BCMS-LIDSASC).BCMS-LIDSASC achieves decentralization and anti-quantum security in the blockchain environment,and provides fine-grained access control and ***,smart contracts are used to replace traditional trusted third parties,and the interplanetary file system(IPFS)is used for ciphertext storage to alleviate storage pressure on the *** to other schemes,BCMS-LIDSASC requires smaller key size and less storage,and has lower computation *** contributes to secure and efficient management of medical data and can protect patient privacy and ensure the integrity of electronic healthcare systems.

关键词： Blockchain Identity-based searchable attribute signcryption Distributed storage NTRU lattice

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基于无证书的格基代理签密方案

电子与信息学报 2022年第7期44卷 2584-2591页

作者：俞惠芳王宁西安邮电大学网络空间安全学院西安710121

无证书代理签密在信息安全领域发挥着越来越重要的作用。现有的大多数无证书代理签密基于传统数学理论,无法抵制量子计算攻击。该文采用格密码技术提出基于无证书的格基代理签密(L-CLPSC)方案。L-CLPSC在带错误学习(LWE)问题和小整数解(... 详细信息

无证书代理签密在信息安全领域发挥着越来越重要的作用。现有的大多数无证书代理签密基于传统数学理论,无法抵制量子计算攻击。该文采用格密码技术提出基于无证书的格基代理签密(L-CLPSC)方案。L-CLPSC在带错误学习(LWE)问题和小整数解(SIS)问题的困难假设下满足自适应选择密文攻击下的不可区分性和自适应选择消息攻击下的不可伪造性。相比较而言,L-CLPSC具有更高的计算效率和更低的通信代价。

关键词：格密码无证书代理签密小整数解问题带错误学习问题

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无双线性对的网络编码无证书签密

电子与信息学报 2023年第10期45卷 3752-3758页

作者：俞惠芳杨柯西安邮电大学网络空间安全学院西安710121

网络编码允许中间节点对数据包先编码再转发,提高了系统的鲁棒性并节约网络资源。实际应用中网络编码容易受到污染攻击,鉴于此,该文提出网络编码环境下无双线性对的无证书签密(NC-CLPFSC)。NC-CLPFSC通过同态哈希函数防御污染攻击,而且... 详细信息

网络编码允许中间节点对数据包先编码再转发,提高了系统的鲁棒性并节约网络资源。实际应用中网络编码容易受到污染攻击,鉴于此,该文提出网络编码环境下无双线性对的无证书签密(NC-CLPFSC)。NC-CLPFSC通过同态哈希函数防御污染攻击,而且还避免了密钥托管和证书管理,同时降低了计算和通信成本。

关键词：网络编码无证书签密抗污染同态哈希函数

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单/多源网络编码同态签名方案

通信学报 2019年第11期40卷 112-121页

作者：俞惠芳李雯西安邮电大学网络空间安全学院

针对单源和多源网络编码污染问题,提出了2种网络编码同态签名方案。单源网络编码椭圆曲线同态签名在椭圆曲线上对消息的散列值进行签名,输出消息、散列值和散列值的签名,接收节点验证签名,该方案通过同态的椭圆曲线签名来抵御代内/间污... 详细信息

针对单源和多源网络编码污染问题,提出了2种网络编码同态签名方案。单源网络编码椭圆曲线同态签名在椭圆曲线上对消息的散列值进行签名,输出消息、散列值和散列值的签名,接收节点验证签名,该方案通过同态的椭圆曲线签名来抵御代内/间污染。基于双线性对的多源网络编码同态签名不仅能够抵抗污染攻击,而且引入时间戳来抵制网络中的重放攻击。通过随机预言模型下的证明,2种方案在选择性攻击下都是安全的。通过效率分析发现,2种方案都能有效提高验证效率。

关键词：单源网络编码多源网络编码同态签名时间戳

The Theoretically Studies and Field Testing of Self-Insulation Exterior Wall in the Hot Summer and Cold Winter Zone

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Energy and Power Engineering 2017年第10期9卷 654-686页

作者： huifang yu Quanbiao Xu Sanming Zhang Weijun Gao Jianfeng Xu Environmental Engineering University of Kitakyushu Kitakyushu Japan The Architectural Design & Research Institute Zhejiang University Hangzhou China Department of architecture Zhejiang University Hangzhou China Shanghai Tunnel Engineering & Rail Transit Design and Research Institute Shanghai China

The energy efficiency design of the exterior wall in the buildings of the hot summer and cold winter zone of China should consider the heat prevention in summer and the heat insulation in winter. The self-insulation of the exterior?wall is a more feasible design to satisfy the energy efficiency of buildings in the?zone. However, the systematic research is urgently needed for the self-insulation of the exterior wall in the hot summer and cold winter zone of China. The paper tested the thermal performance of the common non-clay materials such as shale sintered hollow brick, sand autoclaved aerated concrete block, etc. by means of indoor experiments. The energy efficiency effect of the common materials was verified using dynamic calculation soft PKPM and several constitutions of exterior wall with different main bricks and insulation materials on the heat bridge were simulated, too. Besides, the tests of the thermal performance of exterior wall in real constructions were carried out to testify the practical effect of the recommended constitutions of exterior wall with different main bricks and insulation materials on the heat bridge. The conclusions are: the physical and thermal properties of the six non-clay wall material are better than the clay porous brick;the thermal performance of the non-clay brick can be improved obviously through the rational arrangement of the holes;shale sintered hollow brick after increasing the holes and rationalizing the hole arrangement and sand autoclaved aerated concrete block are recommended for buildings in the hot summer and cold winter area of China. The dynamic calculation results show that the thermal performances?of the non-clay materials are all satisfied with the energy efficiency;The heat transfer coefficient of the exterior wall with composition?③,?in which?the main wall was sand autoclaved aerated concrete block and the material on the heat bridge was sand autoclaved aerated concrete plate, is the smallest among the three r

关键词： Self-Insulation Exterior Wall Indoor Experiments Dynamic Simulation Field Testing Hot Summer and Cold Winter Zone

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基于联盟链的身份环签密方案

电子与信息学报 2023年第3期45卷 865-873页

作者：俞惠芳吕芝蕊西安邮电大学网络空间安全学院西安710121

针对联盟链交易时存在的用户隐私泄露问题,该文提出基于联盟链的身份环签密(CB-IDRSC)方案。CB-IDRSC利用智能合约技术控制新交易加入,实现了公平可靠性;利用多个私钥生成器(PKGs)为用户生成私钥信息,满足联盟链部分去中心化要求和起到... 详细信息

针对联盟链交易时存在的用户隐私泄露问题,该文提出基于联盟链的身份环签密(CB-IDRSC)方案。CB-IDRSC利用智能合约技术控制新交易加入,实现了公平可靠性;利用多个私钥生成器(PKGs)为用户生成私钥信息,满足联盟链部分去中心化要求和起到保护节点隐私的作用;并且具有机密性、不可伪造性和环签密者的无条件匿名性。性能分析中首先对CB-IDRSC中用到的智能合约进行部署;其次通过效率分析说明CB-IDRSC具有较高的计算效率;最后在忽略网络延时等因素影响的情况下,通过实验得出多私钥生成器的数量对系统参数生成和密钥生成阶段的效率影响不到3%。

关键词：身份环签密联盟链智能合约多私钥生成中心