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面向理性用户的秘密重构设计模型
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作者 刘海 田有亮 +2 位作者 唐莹 jianbing ni 马建峰 《通信学报》 EI CSCD 北大核心 2021年第11期54-65,共12页
理性秘密重构是为了约束理性用户的自利性,在现实生活中确保所有参与用户均能获得共享秘密。然而,如果直接使用现有的理性秘密重构协议,不仅不能实现公平的秘密重构,甚至还会出现用户将虚假的秘密视为真实共享秘密的极端情形。导致上述... 理性秘密重构是为了约束理性用户的自利性,在现实生活中确保所有参与用户均能获得共享秘密。然而,如果直接使用现有的理性秘密重构协议,不仅不能实现公平的秘密重构,甚至还会出现用户将虚假的秘密视为真实共享秘密的极端情形。导致上述现象的根本原因是缺乏参考模型,使协议设计者难以全面地考虑理性用户参与秘密重构时的自利行为。为解决该问题,通过形式化描述理性用户模型和理性秘密重构博弈模型来分析理性用户执行秘密重构协议时的先后顺序以及策略选择对公平秘密重构的影响,分别提出了面向纯理性用户环境、面向信誉环境和面向可信用户环境3种适用于不同场景的理性秘密重构协议设计模型。理论证明了所提模型能帮助协议设计者有效约束理性用户的自利性,设计了公平的理性秘密重构协议。此外,基于提出的设计模型,还构造了一个公平的理性秘密重构协议来证明所提模型的可用性。 展开更多
关键词 秘密共享 理性用户 重构公平 设计模型 自利行为
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Unveiling security,privacy,and ethical concerns of ChatGPT
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作者 Xiaodong Wu Ran Duan jianbing ni 《Journal of Information and Intelligence》 2024年第2期102-115,共14页
This paper delves into the realm of ChatGPT,an AI-powered chatbot that utilizes topic modeling and reinforcement learning to generate natural responses.Although ChatGPT holds immense promise across various industries,... This paper delves into the realm of ChatGPT,an AI-powered chatbot that utilizes topic modeling and reinforcement learning to generate natural responses.Although ChatGPT holds immense promise across various industries,such as customer service,education,mental health treatment,personal productivity,and content creation,it is essential to address its security,privacy,and ethical implications.By exploring the upgrade path from GPT-1 to GPT-4,discussing the model's features,limitations,and potential applications,this study aims to shed light on the potential risks of integrating ChatGPT into our daily lives.Focusing on security,privacy,and ethics issues,we highlight the challenges these concerns pose for widespread adoption.Finally,we analyze the open problems in these areas,calling for concerted efforts to ensure the development of secure and ethically sound large language models. 展开更多
关键词 ChatGPT Large language model(LLM) SECURITY PRIVACY Ethics
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Data security and privacy computing in artificial intelligence
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作者 Dengguo Feng Hui Li +3 位作者 Rongxing Lu Zheli Liu jianbing ni Hui Zhu 《Journal of Information and Intelligence》 2024年第2期99-101,共3页
Artificial intelligence(AI)is a field of computer science dedicated to creating systems and algorithms that can perform tasks typically requiring human intelligence,such as learning,problem-solving,language understand... Artificial intelligence(AI)is a field of computer science dedicated to creating systems and algorithms that can perform tasks typically requiring human intelligence,such as learning,problem-solving,language understanding,and decision-making,contributing to a wide array of applications across diverse industries.The development of AI,such as machine learning and deep learning,has revolutionized data processing and analysis.This transformation is rapidly changing human life and has allowed for many practical AI based applications,including biometric recognition,text/sentimental analysis,and attack detection in the fields of health care,finance,autonomous vehicles,personalized recommendations.However,the potential benefits of AI are hindered by issues,such as insecurity and privacy violations in data processing and communication. 展开更多
关键词 SUCH HAS FINANCE
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