Rng School of Electrical and Computer

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In an interview with YaleNews, Anindia Banerjee, a program director at the U.S. National Science Foundation (NSF), which is helping to fund the research, said, “Building functionally correct system software has been one of the greatest challenges in computing since at least the mid -20th century. CertiKOS demonstrates that it is both fundamentally possible and practically feasible to build verified software that additionally provides evidence — through machine-verifiable mathematical proofs — that it is functionally correct.”

Engineering.

"It's very likely that those who operate on a national scale albania whatsapp data know this and are launching attacks that they can use for political purposes. But ordinary attackers have no interest in such systems," Beyakh said. "We hope to draw attention to this problem. If we can successfully attack these control systems, then so can attackers."

Building a provably secure OS that supports parallelism (multithreading) on ​​multiprocessor systems was considered impossible for many years, given the complexity of interactions between software layers, threads, locks, and processor cores. The key idea of ​​the CertiKOS group, as follows from their recent paper, was to develop and verify “a compositional specification that can disentangle all kernel interdependencies and encapsulate interference between different kernel entities. Since the true purpose of an OS kernel is to build layers of abstraction on top of the machine hardware, we insist on methodically identifying and specifying these layers and then verifying each kernel module at its characteristic level of abstraction.”

What about in practice?