Table-based scalar multiplication provides practical security for ECDSA signature generation. However, a novel key recovery attack against this form of generation that exploits the collisions between entries was recently proposed at CHES 2021. This is possible even if table are unknown, such as with random permutated entry ordering. In paper, we enhance efficiency secure based on fixed-base com...

The primary purpose of maritime delimitation is to ensure the maximum internal waters area obtained. In order grantee obtained with selected base point, idea and method optimal selection territorial sea points convex hull (minimum hull) construction technology proposed. ideal are by constructing for all alternative points, which makes it possible realize automatic under principle area.

Knowledge base completion is formulated as a binary classification problem in this work, where an XGBoost classifier trained for each relation using relevant links knowledge graphs (KGs). The new method, named KGBoost, adopts modularized design and attempts to find hard negative samples so train powerful missing link prediction. We conduct experiments on multiple benchmark datasets demonstrate ...

the base isolation systems are among the passive control devices that have been used over the last three decades to limit the seismic-induced response of structures. in this regard, the uniform building code provisions (ubc) has incorporated a special section for the seismic design of base isolated structures since its 1991 edition. due to the importance of the behavior of these structures unde...

In order to detect whether there is a base gap between the explosive charge and the inner cone of a shell and ensure its fighting performance, this paper puts forward an ultrasonic inspection method of base gap based on the principle of conservation of sound flux in propagation and according to the special construction of the shell. Inspection of artificial base gap on the inner cone and actual...