Microkernel | KasperskyOS

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href="https://os.kaspersky.es/technologies/microkernel/?from=en"> Español</a> </li>  </ul> </div> </div> <div class="header__search"> <a href="#"><span class="icon _search"> </span></a> </div> </div> <div class="container"> <form action="/search" method="GET" class="search-top"> <div class="search-top__input"> <input placeholder="Search..." type="text" name="search" class="input" /> <a href="#" class="search-top__clear"><span class="icon _remove"></span></a> </div> <button type="submit" class="search-top__button button _fill _disabled">Find</button> </form> </div> </div> <div class="page _technology"> <div class="page__wrap"> <div class="section _entry"> <div class="section__wrap"> <div class="container"> <div class="section__breadcrumbs"> <div class="section__breadcrumbs-desktop"> <div class="breadcrumbs">  <span property="itemListElement" typeof="ListItem"><a property="item" typeof="WebPage" title="Go to KasperskyOS." href="https://os.kaspersky.com" class="home" ><span property="name">Home</span></a><meta property="position" content="1"></span><span class="_divider"> </span><span property="itemListElement" typeof="ListItem"><a property="item" typeof="WebPage" title="Go to Technologies." href="https://os.kaspersky.com/technologies/" class="archive post-technology-archive" ><span property="name">Technologies</span></a><meta property="position" content="2"></span><span class="_divider"> </span><span property="itemListElement" typeof="ListItem"><span property="name" class="post post-technology current-item">Microkernel</span><meta property="url" content="https://os.kaspersky.com/technologies/microkernel/"><meta property="position" content="3"></span> </div> </div> <div class="section__breadcrumbs-mobile"> <div class="breadcrumbs">   <span property="itemListElement" typeof="ListItem"><a property="item" typeof="WebPage" title="Go to KasperskyOS." href="https://os.kaspersky.com" class="home" ><span property="name">Home</span></a><meta property="position" content="1"></span><span class="_divider"> </span><span property="itemListElement" typeof="ListItem"><a property="item" typeof="WebPage" title="Go to Technologies." href="https://os.kaspersky.com/technologies/" class="archive post-technology-archive" ><span property="name">Technologies</span></a><meta property="position" content="2"></span><span class="_divider"> </span><span property="itemListElement" typeof="ListItem"><span property="name" class="post post-technology current-item">Microkernel</span><meta property="url" content="https://os.kaspersky.com/technologies/microkernel/"><meta property="position" content="3"></span> </div> </div> </div> <div class="section__image"> <img src="https://os.kaspersky.com/wp-content/uploads/sites/31/2022/05/microprocessor.svg" alt=""/></div> <div class="section__title"> <h1>Microkernel</h1> </div> <div class="section__sub-title"> <h5>Cyber Immune operating system base</h5> </div> <div class="section__anchors"> <div class="anchors"> <div class="anchors__item"> <a class="_active" href="#overview"> Microkernel </a> </div> <div class="anchors__item"> <a class="" href="#features"> Features </a> </div> <div class="anchors__item"> <a class="" href="#functionality"> Functionality </a> </div> <div class="anchors__item"> <a href="#materials">Materials</a></div> </div> </div> </div> </div> </div> <div class="section _technology"> <div class="container"> <div class="technology"> <div class="technology__about-info about-info"> <div class="about-info__wrap"> <div class="about-info__content"> <div class="section _content"> <div id="overview"> <p>An operating system’s kernel is the key architectural component responsible for communication between user applications and hardware. KasperskyOS is based on a microkernel developed by Kaspersky. The microkernel is written from scratch and doesn’t use Linux kernel code.</p> <p>The term “microkernel” implies that only the most critical system operation mechanisms are located in the kernel, while less important functions are ordinary applications. This makes it much easier to ensure that the kernel code is free of errors and vulnerabilities, and that the attack surface is minimal.</p> <p>Microkernel architecture is the gold standard in developing secure operating systems that don’t require additional security tools. As long as the methodology is followed, such an operating system is secure by design.</p> </div> </div> </div> <div class="about-info__media"> <div class="tabs _default _disable-scroll"> <div class="tabs__menu"> <div class="tabs__menu-item"> <a class="tabs__menu-link _active" href="#"> Technical diagram </a> </div> </div> <div class="tabs__content"> <div class="tabs__content-item _active"> <a href="https://os.kaspersky.com/wp-content/uploads/sites/31/2020/10/kernel_size.png" class="full-screen" data-fancybox="tech-scheme"> <img src="https://os.kaspersky.com/wp-content/uploads/sites/31/2020/10/kernel_size.png" /> <span class="full-screen__title">Full screen </span> </a> <p class="_medium">Size of the KasperskyOS microkernel code compared to the monolithic kernel of a general-purpose system</p> </div> </div> </div> </div> </div> </div> <div class="technology__icons-info icons-info" id="features"> <div class="icons-info__header"> <h2>Advantages of the technology</h2> </div> <div class="icons-info__list"> <div class="item"> <span class="icon _defender"> <img src="https://os.kaspersky.com/wp-content/uploads/sites/31/2020/10/14_blue_icon.svg" alt=""/></span> <h5>Developed from scratch </h5> <p class="_medium">KasperskyOS microkernel is a proprietary Kaspersky development. The design and implementation of all microkernel parts serve to accomplish the main goal: create a secure operating system.</p> </div> <div class="item"> <span class="icon _defender"> <img src="https://os.kaspersky.com/wp-content/uploads/sites/31/2020/09/11_blue_icon.svg" alt=""/></span> <h5>Small size</h5> <p class="_medium">The KasperskyOS kernel contains only a few dozen thousand lines of code. The smaller the kernel size, the fewer potential vulnerabilities it has and the easier it is to formally verify. To compare: monolithic kernels can include tens of millions of code lines.</p> </div> <div class="item"> <span class="icon _defender"> <img src="https://os.kaspersky.com/wp-content/uploads/sites/31/2020/09/12_blue_icon.svg" alt=""/></span> <h5>Minimum attack surface</h5> <p class="_medium">There are only three system calls and only one IPC interface in KasperskyOS. This keeps the attack surface to a minimum.</p> </div> <div class="item"> <span class="icon _defender"> <img src="https://os.kaspersky.com/wp-content/uploads/sites/31/2020/09/protection_done_outline-1.svg" alt=""/></span> <h5>Security module integration</h5> <p class="_medium">The KasperskyOS microkernel is designed to take full advantage of Kaspersky Security System capabilities.</p> </div> <div class="item"> <span class="icon _defender"> <img src="https://os.kaspersky.com/wp-content/uploads/sites/31/2020/09/08_blue_icon.png" alt=""/></span> <h5>Ease of development</h5> <p class="_medium">A number of libraries have been developed for KasperskyOS that provide partial POSIX compatibility, thus simplifying the creation and porting of applications.</p> </div> </div> </div> <div class="technology__features" id="functionality"> <h2>Features of the technology</h2> <div class="technology__features-wrap"> <div class="technology__features-content"> <div class="section _content"> <p>The KasperskyOS kernel is responsible for functions that can only be performed in privileged mode:</p> <ul> <li>Plan processes and threads</li> <li>Manage virtual memory</li> <li>Manage access to I/O ports</li> <li>Manage DMA memory</li> <li>Perform Futex-based synchronization</li> <li>Deliver and manage hardware interrupts</li> <li>Receive and set the real time</li> <li>Manage descriptors</li> <li>Interact with the Kaspersky Security System</li> </ul> <p>All other operating system functions, including drivers, file systems, and network stacks, are moved to user mode.</p> <p>The KasperskyOS kernel guarantees complete isolation of IT system components. The only IPC type provided by the kernel is synchronous messaging (request–response). Each message is sent to the Kaspersky Security System to check for compliance with the specified security policy. The kernel only delivers the message if the policy allows it.</p> </div> </div> <div class="technology__features-related"> <div class="technology__related"> <div class="technology__related-title"> <h3>Other KasperskyOS technologies</h3> </div> <div class="technology__related-item"> <a class="card _row _sm" href="https://os.kaspersky.com/technologies/kaspersky-security-system/"> <span class="card__prevu"><img class="_contain" src="https://os.kaspersky.com/wp-content/uploads/sites/31/2022/05/kss.svg" alt=""/></span> <span class="card__common"> <h5 class="card__title">Kaspersky Security System<span class="card__title-icon"><span class="icon _arrow"></span></span></h5> <p class="card__description _medium">Flexible configuration of security policies and uncompromising control over interprocess communications. </p> </span> </a> </div> </div> </div> </div> </div> </div> </div> </div> <div class="section _materials _dop-hidden" id="materials"> <div class="container"> <div class="materials _1 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