首先借鉴Leighton M icali协议中的多重单向散列建立密钥思想,设计了一种基本的多重单向散列密钥分配协议。该协议能确保所有邻居节点能建立安全链路,但是安全性能差。然后结合多重单向散列与随机密钥预分配,提出了多重单向散列随机密...首先借鉴Leighton M icali协议中的多重单向散列建立密钥思想,设计了一种基本的多重单向散列密钥分配协议。该协议能确保所有邻居节点能建立安全链路,但是安全性能差。然后结合多重单向散列与随机密钥预分配,提出了多重单向散列随机密钥预分配协议,并详细分析了性能。与现有的协议相比,该协议只需很少的单向散列运算,计算负载小,安全性能高,非常适用于传感器网络。展开更多
Flexible laser display is a critical component for an information output port in next-generation wearable devices.So far,the lack of appropriate display panels capable of providing sustained operation under rigorous m...Flexible laser display is a critical component for an information output port in next-generation wearable devices.So far,the lack of appropriate display panels capable of providing sustained operation under rigorous mechanical conditions impedes the development of flexible laser displays with high reliability.Owing to the multiple scattering feedback mechanism,random lasers render high mechanical flexibility to withstand deformation,thus making them promising candidates for flexible display planes.However,the inability to obtain pixelated random laser arrays with highly ordered emissive geometries hinders the application of flexible laser displays in the wearable device.Here,for the first time,we demonstrate a mass fabrication strategy of full-color random laser arrays for flexible display panels.The feedback closed loops can be easily fulfilled in the pixels by multiple scatterings to generate durative random lasing.Due to the sustained operation of random laser,the display performance was well-maintained under mechanical deformations,and as a result,a flexible laser display panel was achieved.Our finding will provide a guidance for the development of flexible laser displays and laser illumination devices.展开更多
文摘首先借鉴Leighton M icali协议中的多重单向散列建立密钥思想,设计了一种基本的多重单向散列密钥分配协议。该协议能确保所有邻居节点能建立安全链路,但是安全性能差。然后结合多重单向散列与随机密钥预分配,提出了多重单向散列随机密钥预分配协议,并详细分析了性能。与现有的协议相比,该协议只需很少的单向散列运算,计算负载小,安全性能高,非常适用于传感器网络。
基金financially supported by the Ministry of Science and Technology of China(2017YFA0204502)the National Natural Science Foundation of China(21790364)。
文摘Flexible laser display is a critical component for an information output port in next-generation wearable devices.So far,the lack of appropriate display panels capable of providing sustained operation under rigorous mechanical conditions impedes the development of flexible laser displays with high reliability.Owing to the multiple scattering feedback mechanism,random lasers render high mechanical flexibility to withstand deformation,thus making them promising candidates for flexible display planes.However,the inability to obtain pixelated random laser arrays with highly ordered emissive geometries hinders the application of flexible laser displays in the wearable device.Here,for the first time,we demonstrate a mass fabrication strategy of full-color random laser arrays for flexible display panels.The feedback closed loops can be easily fulfilled in the pixels by multiple scatterings to generate durative random lasing.Due to the sustained operation of random laser,the display performance was well-maintained under mechanical deformations,and as a result,a flexible laser display panel was achieved.Our finding will provide a guidance for the development of flexible laser displays and laser illumination devices.
