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Everything about Separation kernel

Type of computer kernel

A separation kernel is a type of security kernel used to simulate a distributed environment. The concept was introduced by John Rushby in a 1981 paper. Rushby proposed the separation kernel as a solution to the difficulties and problems that had arisen in the development and verification of large, complex security kernels that were intended to "provide multilevel secure operation on general-purpose multi-user systems." According to Rushby, "the task of a separation kernel is to create an environment which is indistinguishable from that provided by a physically distributed system: it must appear as if each regime is a separate, isolated machine and that information can only flow from one machine to another along known external communication lines. One of the properties we must prove of a separation kernel, therefore, is that there are no channels for information flow between regimes other than those explicitly provided." Wikipedia →

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  1. Read the overview: Separation kernelA 5-minute orientation
  2. Skim a recent paper: Large Separable Kernel Attention: Rethinking the Large Kernel Attention design in CNNInfluential work since 2022
  3. Pick up a classic book: Modern Operating SystemsThe most-reprinted book on the subject
  4. Read the landmark paper: Multichannel Blind Source Separation Using Convolution Kernel CompensationCited 650 times
  5. Go sideways: Multiple Independent Levels of SecurityA closely related topic
  6. Go sideways: L4 microkernel familyA closely related topic

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