183 lines
11 KiB
HTML
183 lines
11 KiB
HTML
<!DOCTYPE html>
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<html lang="en" prefix="og: https://ogp.me/ns#">
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<head>
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<meta charset="utf-8"/>
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<title>GrapheneOS</title>
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<meta name="description" content="GrapheneOS is a security and privacy focused mobile OS with Android app compatibility."/>
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<link rel="stylesheet" href="/grapheneos.css"/>
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<link rel="manifest" href="/manifest.webmanifest"/>
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<link rel="license" href="/LICENSE.txt"/>
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<script type="module" src="/js/redirect.js"></script>
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</head>
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<body>
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<header>
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<nav id="site-menu">
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<ul>
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<li aria-current="page"><a href="/">GrapheneOS</a></li>
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<li><a href="/features">Features</a></li>
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<li><a href="/install/">Install</a></li>
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<li><a href="/build">Build</a></li>
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<li><a href="/usage">Usage</a></li>
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<li><a href="/faq">FAQ</a></li>
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<li><a href="/releases">Releases</a></li>
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<li><a href="/source">Source</a></li>
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<li><a href="/history">History</a></li>
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<li><a href="/articles/">Articles</a></li>
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<li><a href="/donate">Donate</a></li>
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<li><a href="/contact">Contact</a></li>
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</ul>
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</nav>
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</header>
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<main id="grapheneos">
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<h1><a href="#grapheneos">GrapheneOS</a></h1>
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<p>GrapheneOS is a privacy and security focused mobile OS with Android app
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compatibility developed as a non-profit <a href="/source">open source</a> project.
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It's focused on the research and development of privacy and security technology
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including substantial improvements to sandboxing, exploit mitigations and the
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permission model. GrapheneOS also develops various apps and services with a focus on
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privacy and security. Vanadium is a hardened variant of the Chromium browser and
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WebView specifically built for GrapheneOS. GrapheneOS also includes our minimal
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security-focused PDF Viewer, our hardware-based Auditor app / attestation service
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providing local and remote verification of devices, and the externally developed
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Seedvault encrypted backup which was initially developed for inclusion in
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GrapheneOS.</p>
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<p>GrapheneOS improves the privacy and security of the OS from the bottom up. It
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deploys technologies to mitigate whole classes of vulnerabilities and make exploiting
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the most common sources of vulnerabilities substantially more difficult. It improves
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the security of both the OS and the apps running on it. The app sandbox and other
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security boundaries are fortified. GrapheneOS tries to avoid impacting the user
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experience with the privacy and security features. Ideally, the features can be
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designed so that they're always enabled with no impact on the user experience and no
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additional complexity like configuration options. It's not always feasible, and
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GrapheneOS does add various toggles for features like the Network permission, Sensors
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permission, restrictions when the device is locked (USB peripherals, camera, quick
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tiles), etc. along with more complex user-facing privacy and security features with
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their own UX.</p>
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<p>The <a href="/features">features page</a> provides an overview of the substantial
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privacy and security improvements added by GrapheneOS to the Android Open Source
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Project.</p>
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<p>Official releases are available on the <a href="/releases">releases page</a> and
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installation instructions are on the <a href="/install/">install page</a>.</p>
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<section id="never-google-services">
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<h2><a href="#never-google-services">No Google apps or services</a></h2>
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<p>GrapheneOS will never include either Google Play services or another
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implementation of Google services like microG. Those are not included in the
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Android Open Source Project and are not required for baseline Android
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compatibility. Apps designed to run on Android rather than only Android with
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bundled Google apps and services already work on GrapheneOS, so a huge number of
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both open and closed source apps are already available for it.</p>
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<p>AOSP APIs not tied to Google but that are typically provided via Play services
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will continue to be implemented using open source providers like the Seedvault
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backup app. Text-to-speech, speech-to-text, geocoding, accessibility services,
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etc. are examples of other open Android APIs where we need to develop/bundle an
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implementation based on existing open source projects. GrapheneOS is not going to
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be implementing these via a Google service compatibility layer because these APIs
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are in no way inherently tied to Google services.</p>
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<p>We're developing a minimal Play services compatibility layer as a regular app
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without any special privileges. The app will provide a stub implementation of the
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entire Play services API pretending the servers are down and the functionality is
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unavailable. It will always be disabled by default since apps will detect Play
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services is available and will try to use it rather than alternatives. As an
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example, Signal would try to use a non-functional FCM implementation rather than
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their own server push implementation. The intention is that users will only enable
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this in profiles dedicated to running apps with an unnecessary hard dependency on
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Play services. We'll likely prevent enabling it in the owner profile to help users
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avoid those kinds of pitfalls.</p>
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<p>Our Play services app won't have any special privileges or whitelisting in the
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OS like Play services or microG. There will be no support for bypassing arbitrary
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signature checks like the microG signature spoofing patch since it substantially
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compromises the OS security model and breaks other security features like verified
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boot. Instead, our app will be signed with a GrapheneOS Play services key and the
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only OS support for the app will be presenting the GrapheneOS Play services key as
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the Google Play services key.</p>
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<p>Ideally, Google themselves would support installing the official Play services
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as a regular Android app, rather than taking the monopolistic approach of forcing
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it to be bundled into the OS in a deeply integrated way with special privileged
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permissions and capabilities unavailable to other service providers competing with
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them. Even though we would never include it in GrapheneOS, it would be great if
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users did have the option to install Play services as a regular app in specific
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profiles. It's unfortunate that the approach taken to it is so deeply integrated
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and anti-competitive. GrapheneOS users can still choose to use Google services if
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they choose, but largely only via a browser. A few of their apps like Google Maps
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do work with reduced functionality without Play services but most won't.</p>
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</section>
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<section id="history">
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<h2><a href="#history">History</a></h2>
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<p>GrapheneOS was founded as an open source project in late 2014. It was formerly
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known as CopperheadOS. For more details, see the <a href="/history">history
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page</a>.</p>
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</section>
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<section id="upstream">
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<h2><a href="#upstream">Upstream contributions</a></h2>
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<p>See <a href="/faq#upstream">the FAQ section on our upstream work</a> improving
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privacy and security for billions of users by getting a subset of our changes into
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core infrastructure projects.</p>
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</section>
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<section id="copyright-and-licensing">
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<h2><a href="#copyright-and-licensing">Copyright and licensing</a></h2>
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<p>GrapheneOS is permissively licensed and has never used copyright assignment, so
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the work is owned by the developers. See the
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<a href="/faq#copyright-and-licensing">FAQ entry on copyright and licensing</a>
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for more details.</p>
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</section>
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<section id="roadmap">
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<h2><a href="#roadmap">Roadmap</a></h2>
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<p>See <a href="/faq#roadmap">the FAQ section on the roadmap</a>.</p>
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</section>
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<section id="device-support">
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<h2><a href="/faq#device-support">Device support</a></h2>
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<p>See <a href="/faq#device-support">the FAQ section on device support</a>.</p>
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</section>
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</main>
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<footer>
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<a href="/"><img src="/mask-icon.svg" width="512" height="512" alt=""/>GrapheneOS</a>
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<ul id="social">
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<li><a href="https://twitter.com/GrapheneOS">Twitter</a></li>
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<li><a href="https://github.com/GrapheneOS">GitHub</a></li>
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<li><a href="https://reddit.com/r/GrapheneOS">Reddit</a></li>
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<li><a href="https://www.linkedin.com/company/grapheneos/">LinkedIn</a></li>
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</ul>
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</footer>
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</body>
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</html>
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