| 3 | A Survey on Cryptographic Security and Information Hiding Technology for Cloud or Fog-Based IoT System显示文摘Internet of Things(IoT)is an emerging paradigm involving intelligent sensor networks that incorporates embedded technology for collecting data,communicating with external environments.Recently,cloud computing together with fog computing has become an important research area of the Internet of Things because of big data processing capabilities.It is a promising technology that utilizes cloud or fog computing/architecture to improve sensor computing,storage,and communication capabilities.However,recently it has been shown that this computing/architecture may be vulnerable to various attacks because of the openness nature of the wireless network.Therefore,it becomes more and more important to ensure the security and privacy in these scenes.Encryption security and information hiding technology can provide authentication,confidentiality,integrity,anti-eavesdropping,availability and so on for these computing models or architectures.The purpose of this review is to look for original articles with novel ideas and solutions to address encryption security and information hiding technologies in cloud or fog-based Internet of Things systems.We hope this review will provide an opportunity for scientists,researchers and industry engineers to study original manuscripts and know developments in all aspects of security,privacy,trust,and covert communication issues in cloud or fog computing/architecture Internet of Things systems. | Liang Bai Yuzhen Liu Xiaoliang Wang Nick Patterson F.Jiang | 2019 | Journal of Information Hiding and Privacy Protection2019，1，1： | 0 |
| 5 | Enhanced mechanical performance of grain boundary precipitation-hardened high-entropy alloys via a phase transformation at grain boundaries显示文摘Grain-boundary(GB)precipitation has a significant adverse effect on plasticity of alloys,which easily leads to catastrophic intergranular failure in safety-critical applications under high external loading.Herein,we report a novel strategy that uses the local stress concentration induced by GB precipitates as a driving force to trigger phase transformation of preset non-equiatomic high-entropy solid-solution phase at GBs.This in situ deformation-induced phase transformation at GBs introduces a well-known effect:transformation-induced plasticity(TRIP),which enables an exceptional elongation to fracture(above 38%)at a high strength(above 1.5 GPa)in a GB precipitation-hardened high-entropy alloy(HEA).The present strategy in terms of'local stress concentration-induced phase transformations at GBs'may provide a fundamental approach by taking advantage of(rather than avoiding)the GB precipitation to gain a superior combination of high strength and high ductility in HEAs. | Y.L.Qi L.Zhao X.Sun H.X.Zong X.D.Ding F.Jiang H.L.Zhang Y.K.Wu L.He F.Liu S.B.Jin G.Sha J.Sun | 2021 | Journal of Materials Science & Technology2021，，27： | 0 |
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