This implements Matt Blaze's algorithm for recovering the code for the master key from locks (physical locks :) that are part of a master keying system, used in many business environments. It does so ...

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Security researchers have built a master key that exploits a design flaw in a popular and widely used hotel electronic lock system, allowing unfettered access to every room in the building. The ...

Abstract: Grayscale and color images enlarge the area of visual secret sharing scheme. Conventional (2, n) random grid visual secret sharing (RG-VSS) scheme encrypts the secret image into n noise-like ...