We present an attack against a code-based signature scheme based on the Lyubashevsky protocol that was recently proposed by Song, Huang, Mu, Wu and Wang (SHMWW). The private key in SHMWW contains columns coming part from identity matrix random matrix. existence of two types leads to strong bias distribution set bits produced signatures. Our exploits such recover bunch collected provide theoreti...

Traditional Worst-Case Execution-Time (WCET) analysis is very complex. It has to deal with path analysis, to identify and describe the possible execution paths through the code to be analyzed, and it has to model the worst-case timing of the possible paths on the target hardware. The latter is again nontrivial due to interference of modern hardware features like instruction pipelines, caches, a...