Before smartphones, before transistors, before written language, the Inca were running an information system. Scientists just ...

Scientists used the quipu’s data to build working spreadsheets, file systems, and encryption tools, rivaling conventional computing methods.

Abstract: Geometric resolution and sidelobes are the most important parameters in synthetic aperture radar (SAR) imaging. These parameters depend on the suppression ability of the sidelobe level of ...

Abstract: In this paper, a novel message authentication model using the same key over wiretap channel is proposed to achieve information-theoretic security ...