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| 1 | Unidirectional Identity-Based Proxy Re-Signature with Key Insulation in EHR Sharing System显示文摘The introduction of the electronic medical record(EHR)sharing system has made a great contribution to the management and sharing of healthcare data.Considering referral treatment for patients,the original signature needs to be converted into a re-signature that can be verified by the new organization.Proxy re-signature(PRS)can be applied to this scenario so that authenticity and nonrepudiation can still be insured for data.Unfortunately,the existing PRS schemes cannot realize forward and backward security.Therefore,this paper proposes the first PRS scheme that can provide key-insulated property,which can guarantee both the forward and backward security of the key.Although the leakage of the private key occurs at a certain moment,the forward and backward key will not be attacked.Thus,the purpose of key insulation is implemented.What’s more,it can update different corresponding private keys in infinite time periods without changing the identity information of the user as the public key.Besides,the unforgeability of our scheme is proved based on the extended Computational Diffie-Hellman assumption in the random oracle model.Finally,the experimental simulation demonstrates that our scheme is feasible and in possession of promising properties. | Yanan Chen Ting Yao Haiping Ren Zehao Gan | 2022 | Computer Modeling in Engineering & Sciences2022，，6： | 0 |
| 2 | An angular blinking jamming method based on electronically controlled corner reflectors显示文摘Passive jamming is believed to have very good potential in countermeasure community.In this paper,a passive angular blinking jamming method based on electronically controlled corner reflectors is proposed.The amplitude of the incident wave can be modulated by switching the corner reflector between the penetration state and the reflection state,and the ensemble of multiple corner reflectors with towing rope can result in complex angle decoying effects.Dependency of the decoying effect on corner reflectors’radar cross section and positions are analyzed and simulated.Results show that the angle measured by a monopulse radar can be significantly interfered by this method while the automatic tracking is employed. | GAN Lin WU Zehao WANG Xuesong LI Jianbing | 2024 | Journal of Systems Engineering and Electronics2024，35，2： | 0 |
| 3 | The Impact of Industrial Policy on Photovoltaic Enterprise Risk Using an LDA Based-Deep Neural Network Model显示文摘The development and utilization of new and renewable resources of energy has become an important layout of the development strategy in China.Photovoltaic industry is an important strategic emerging industry for the development and utilization of new energy in China.Therefore,it is important for the government to make policy to ensure the stable and orderly development of photovoltaic enterprises to accelerate the industrial structure transition in China.This paper collects the policies on photovoltaic industry,and then analyzes the industrial policy with Latent Dirichlet Allocation(LDA).LDA is generally used in document topic label extraction and recommendation system.However,this paper applies it to policy theme analysis to study the impact of policy information flow on the risk of photovoltaic enterprises.Previous studies on photovoltaic enterprise risk examined traditional financial indicators,such as asset-liability Ratio and ROE.However,the textual information in the industrial policy has rarely been studied to quantitatively analyze photovoltaic enterprise risk.In our proposed method,LDA is first used to extract the text features hiding in the text of the industrial policies,and deep neural networks then are trained on the data,which include the text features and traditional numeric features for predict photovoltaic enterprise risk.The experimental results show that the industrial policy of the current quarter has a significant effect on photovoltaic enterprise risk.Compared with this,the industrial policy of last quarter has a weak impact on the photovoltaicenterprise risk.The proposed model is a useful tool for the prediction of the photovoltaic enterprise risk. | Xinye GAN Taiyinghua XU Zehao LI Wei XU Hong ZHAO | 2022 | Journal of Systems Science and Information2022，10，2： | 0 |
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