2022-06-30 06:19:28 +01:00
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<!DOCTYPE html>
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<html>
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<head>
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2022-10-29 23:54:59 +01:00
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<title>Inferencium Network - About</title>
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<link rel="stylesheet" href=infnet.css>
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2022-06-30 06:19:28 +01:00
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</head>
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2022-10-29 01:30:35 +01:00
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<div class="sidebar">
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2022-10-29 23:54:59 +01:00
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<a class="title">Inferencium Network</a><br>
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<br>
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<br>
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<div><a href="about.html">About</a></div>
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<div><a href="contact.html">Contact</a></div>
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<div><a href="blog.html">Blog</a></div>
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<div><a href="source.html">Source</a></div>
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2022-10-29 01:30:35 +01:00
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</div>
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2022-06-30 06:19:28 +01:00
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<body>
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<h1>About</h1>
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<br>
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<h3>About Me</h3>
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<p>I am Inference, a cybersecurity researcher based in United Kingdom.<br>
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<br>
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<p>I write about my research and experience in cybersecurity and also physical
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security. Most of my postings are security-related, but I occasionally post
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about other aspects of my life.</p>
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<br>
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<p>I am an open source advocate for the preservation and modifiability of
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source code. I believe source code should be considered human knowledge as
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much as past knowledge and teachings were; it is how modern humanity
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survives and runs.<br>
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Source code being modifiable allows it to be adapted
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for use by anyone, whether to add features, harden it for increased security
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and/or privacy, or provide accessibility for disabled users.<br>
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I am also a modular design advocate for the ability to securely and
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robustly make changes to hardware and software without the entire system
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being affected.</p>
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<br>
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2022-11-03 05:27:50 +00:00
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<p>If you want to contact me for any reason, you can use my
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<a class="body-link" href="https://inferencium.net/contact.html">contact methods</a>.</p>
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<br>
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<br>
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2022-10-29 23:54:59 +01:00
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<br>
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2022-10-31 00:22:30 +00:00
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<h3>Hardware I Use</h3>
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<h4>Smartphone</h4>
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<table>
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<tr>
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2022-11-09 02:46:01 +00:00
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<td class="table-title">Type</td>
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<td class="table-title">Hardware</td>
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<td class="table-title">Description</td>
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<td class="table-title">Source model<br>
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<br>
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(License)</td>
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</tr>
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<tr>
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2022-11-09 02:09:59 +00:00
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<td class="table-main">Smartphone</td>
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<td class="table-main"><img src="img/google-pixel_6.png" width="100px" height="100px"/><br>
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2022-10-31 00:22:30 +00:00
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<br>
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Google Pixel 6</td>
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<td>Google Pixel devices are the best Android devices available on
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the market for
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<a class="table-link" href="https://security.googleblog.com/2021/10/pixel-6-setting-new-standard-for-mobile.html"
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>security and privacy</a>.<br>
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<br>
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They allow locking the bootloader with a
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<a class="table-link" href="https://android.googlesource.com/platform/external/avb/+/master/README.md#pixel-2-and-later"
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>custom Android Verified Boot (AVB) key</a> in order to preserve security and privacy features when installing a custom
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operating system, such as
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<a class="table-link" href="https://source.android.com/docs/security/features/verifiedboot/"
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>verified boot</a> which verifies that the OS has not been corrupted or tampered with, and
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<a class="table-link" href="https://source.android.com/docs/security/features/verifiedboot/verified-boot#rollback-protection"
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>rollback protection</a> which prevents an adversary from rolling back the OS or firmware version to a
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previous version with known security vulnerabilities.<br>
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<br>
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They also include a
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<a class="table-link" href="https://developer.android.com/training/articles/keystore#HardwareSecurityModule"
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>hardware security module</a> (Titan M2, improving on the previous generation
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<a class="table-link" href="https://security.googleblog.com/2018/10/building-titan-better-security-through.html"
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>Titan M</a>) which is extremely resistant to both remote and physical attacks due to being
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completely isolated from the rest of the system, including the operating system.
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Titan M2 ensures that the device cannot be remotely compromised by requiring the
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side buttons of the device to be physically pressed for some sensitive operations.
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Titan M2 also takes the role of
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<a class="table-link" href="https://source.android.com/docs/security/best-practices/hardware#strongbox-keymaster"
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>Android StrongBox Keymaster</a>,
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a <a class="table-link" href="https://source.android.com/docs/security/features/keystore"
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>hardware-backed Keystore</a> containing sensitive user keys which are unavailable to
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the OS or apps running on it without authorisation from Titan M2 itself.
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<a class="table-link" href="https://android-developers.googleblog.com/2018/05/insider-attack-resistance.html"
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>Insider attack resistance</a> ensures that Titan M2 firmware can be flashed only if the user PIN/password
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is already known, making it impossible to backdoor the device without already knowing
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these secrets.<br>
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<br>
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Google Pixel device kernels are compiled with
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<a class="table-link" href="https://android-developers.googleblog.com/2018/10/control-flow-integrity-in-android-kernel.html"
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>forward-edge control-flow integrity</a> and
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<a class="table-link" href="https://security.googleblog.com/2019/10/protecting-against-code-reuse-in-linux_30.html"
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>backward-edge control-flow integrity</a> to prevent code reuse attacks against
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the kernel. MAC address randomisation is
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<a class="table-link" href="https://android-developers.googleblog.com/2017/04/changes-to-device-identifiers-in.html"
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>implemented well, along with minimal probe requests and randomised initial sequence numbers</a>.<br>
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<br>
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Google releases
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<a class="table-link" href="https://source.android.com/docs/security/bulletin/pixel/"
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>guaranteed monthly security updates</a>, ensuring Google Pixel devices are
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up-to-date and quickly protected against security vulnerabilities.<br>
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<br>
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Pixel 6-series devices are a large improvement over the already very secure and private
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previous generation Pixel devices. They replace ARM-based Titan M with RISC-V-based Titan M2,
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reducing trust by removing ARM from the equation. Titan M2 is more resiliant to attacks than
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Titan M, and is
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<a class="table-link" href="https://www.tuv-nederland.nl/assets/files/cerfiticaten/2022/09/nscib-cc-22-0228971-cert-final.pdf"
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>AVA_VAN.5 certified</a>, the highest level of vulnerability assessment. Google's
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2022-10-31 00:25:44 +00:00
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in-house Tensor SoC includes Tensor Security Core, further improving device security.<br>
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2022-11-07 07:54:16 +00:00
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Pixel 6-series devices are supported for a
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<a class="table-link" href="https://support.google.com/nexus/answer/4457705#zippy=%2Cpixel-and-later"
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>minimum of 5 years from launch</a>, an increase from
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previous generations'
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<a class="table-link" href="https://support.google.com/nexus/answer/4457705#zippy=%2Cpixel-xl-a-a-g-and-a-g"
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>support lifecycles of 3 years</a>.</td>
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</tr>
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</table>
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<br>
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<br>
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2022-10-29 23:54:59 +01:00
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<h3>Software I Use</h3>
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<h4>Desktop</h4>
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<table>
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<tr>
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2022-11-09 02:46:01 +00:00
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<td class="table-title">Type</td>
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<td class="table-title">Software</td>
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<td class="table-title">Description</td>
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<td class="table-title">Source model<br>
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<br>
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(License)</td>
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</tr>
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<tr>
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2022-11-09 02:09:59 +00:00
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<td class="table-main">Operating system</td>
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<td class="table-main"><img src="img/logo-gentoo_linux.png" width="100px" height="100px"/><br>
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<br>
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Gentoo Linux</td>
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<td><a class="table-link" href="https://www.gentoo.org/"
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>Gentoo Linux</a> is a highly modular, source-based Linux-based operating system
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which allows vast customisation to tailor the operating system to suit your specific
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needs. There are many advantages to such an operating system, with the most notable
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being the ability to optimise the software for security, privacy, performance,
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or power usage; however, there are effectively unlimited other use cases, or a
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combination of multiple use cases.<br>
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<br>
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I have focused on security hardening and privacy hardening, placing performance below
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those aspects, although my system is still very performant. Some of the hardening I
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2022-11-08 02:15:09 +00:00
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apply includes
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<a class="table-link" href="https://en.wikipedia.org/wiki/Buffer_overflow_protection"
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>stack protection</a>,
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<a class="table-link" href="https://en.wikipedia.org/wiki/Integer_overflow"
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>signed integer overflow wrapping</a>, and GrapheneOS'
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2022-11-07 09:04:09 +00:00
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<a class="table-link" href="https://github.com/GrapheneOS/hardened_malloc/"
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>hardened_malloc</a> memory allocator.<br>
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<br>
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2022-11-03 00:11:16 +00:00
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You can find my personal Gentoo Linux configuration in my personal
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2022-11-07 08:55:02 +00:00
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<a class="table-link" href="https://git.inferencium.net/inference/cfg/"
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>configuration respository</a>.</td>
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<td class="table-main">Open source<br>
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<br>
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(GPLv2-only)</td>
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</tr>
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<tr>
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<td class="table-main">Web browser</td>
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<td class="table-main"><img src="img/logo-chromium.png" width="100px" height="100px"/><br>
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<br>
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Chromium</td>
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<td><a class="table-link" href="https://chromium.org/"
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>Chromium</a> is a highly secure web browser which is often ahead of other
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web browsers in security aspects. It has a dedicated security team and a
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very impressive
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<a class="table-link" href="https://www.chromium.org/Home/chromium-security/brag-sheet/"
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>security brag sheet</a>.
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Chromium's security features include a strong
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<a class="table-link" href="https://code.google.com/p/chromium/wiki/LinuxSandboxing"
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>multi-layer sandbox</a>,
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strong <a class="table-link" href="https://www.chromium.org/Home/chromium-security/site-isolation"
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>site isolation</a>,
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<a class="table-link" href="https://www.chromium.org/Home/chromium-security/binding-integrity"
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>Binding Integrity</a> memory hardening, and
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<a class="table-link" href="https://www.chromium.org/developers/testing/control-flow-integrity/"
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>control-flow integrity (CFI)</a>.<br>
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<br>
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You can learn more about Chromium by visiting its
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<a class="table-link" href="https://www.chromium.org/Home/"
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>official website</a> which provides extensive documentation.</td>
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<td class="table-main">Open source<br>
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<br>
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(BSD 3-Clause)</td>
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</tr>
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</table>
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<h4>Smartphone</h4>
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<table>
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<tr>
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<td>Type</td>
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<td>Software</td>
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<td>Description</td>
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<td>Source model<br>
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<br>
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(License)</td>
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2022-10-29 23:54:59 +01:00
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</tr>
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<tr>
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2022-11-09 02:09:59 +00:00
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<td class="table-main">Operating system</td>
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<td class="table-main"><img src="img/logo-grapheneos.png" width="100px" height="100px"/><br>
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<br>
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GrapheneOS</td>
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2022-11-08 02:15:09 +00:00
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<td><a class="table-link" href="https://grapheneos.org/"
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>GrapheneOS</a> is a security-hardened, privacy-hardened, secure-by-default
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Android-based operating system which implements extensive, systemic security
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and privacy hardening to the Android Open Source Project used as its base
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codebase. Its hardening includes closing gaps for apps to access sensitive
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system information, a secure app spawning feature which avoids sharing address
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space layout and other secrets AOSP's default Zygote app spawning model would
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share,
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<a class="table-link" href="https://github.com/GrapheneOS/kernel_gs-gs101/"
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>hardened kernel</a>, hardened memory allocator
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(<a class="table-link" href="https://github.com/GrapheneOS/hardened_malloc/"
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>hardened_malloc</a>) to protect against common memory corruption vulnerabilties,
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<a class="table-link" href="https://github.com/GrapheneOS/platform_bionic/"
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>hardened Bionic standard C library</a>,
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<a class="table-link" href="https://github.com/GrapheneOS/platform_system_sepolicy/"
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>stricter SELinux policies</a>, and local and remote hardware-backed attestation
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(<a class="table-link" href="https://attestation.app/about/"
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>Auditor</a>) to ensure the OS has not been corrupted or tampered with.
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GrapheneOS only supports
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<a class="table-link" href="https://grapheneos.org/faq#device-support"
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>high security and well-supported devices</a> which receive
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2022-10-30 02:38:49 +00:00
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full support from their manufacturers, including firmware updates, long support
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lifecycles, secure hardware, and overall high security practices.<br>
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<br>
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2022-10-29 23:54:59 +01:00
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For an extensive list of features GrapheneOS provides, visit its
|
2022-11-07 08:56:56 +00:00
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<a class="table-link" href="https://grapheneos.org/features/"
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2022-11-07 08:55:02 +00:00
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>official website</a> which provides extensive documentation.</td>
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2022-11-09 02:09:59 +00:00
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<td class="table-main">Open source<br>
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2022-10-29 23:54:59 +01:00
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<br>
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(MIT)</td>
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</tr>
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2022-10-30 02:38:49 +00:00
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<tr>
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2022-11-09 02:09:59 +00:00
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<td class="table-main">Web browser</td>
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<td class="table-main"><img src="img/logo-vanadium.png" width="100px" height="100px"/><br>
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2022-10-30 02:38:49 +00:00
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<br>
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Vanadium</td>
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<td>Vanadium is a security-hardened, privacy-hardened Chromium-based web browser
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which utilises GrapheneOS' operating system hardening to implement stronger
|
2022-10-31 00:22:30 +00:00
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defenses to the already very secure Chromium web browser. Its hardening alongside
|
2022-11-08 02:15:09 +00:00
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Chromium's base security features includes
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<a class="table-link" href="https://github.com/GrapheneOS/Vanadium/blob/13/patches/0081-Implement-UI-for-JIT-site-settings.patch"
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>disabling JavaScript just-in-time (JIT) compilation by default</a>,
|
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<a class="table-link" href="https://github.com/GrapheneOS/Vanadium/blob/13/patches/0051-stub-out-the-battery-status-API.patch"
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>stubbing out the battery status API to prevent abuse of it</a>, and
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<a class="table-link" href="https://github.com/GrapheneOS/Vanadium/blob/13/patches/0084-Toggle-for-navigating-external-URL-in-incognito.patch"
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>always-on Incognito mode as an option</a>.<br>
|
2022-10-30 02:38:49 +00:00
|
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<br>
|
2022-11-03 00:11:16 +00:00
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Vanadium's source code, including its Chromium patchset, can be found in its
|
2022-11-07 08:55:02 +00:00
|
|
|
<a class="table-link" href="https://github.com/GrapheneOS/Vanadium/"
|
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>official repository</a>.</td>
|
2022-11-09 02:09:59 +00:00
|
|
|
<td class="table-main">Open source<br>
|
2022-10-30 02:38:49 +00:00
|
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<br>
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(GPLv2-only)</td>
|
2022-11-08 09:56:58 +00:00
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</tr>
|
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|
<tr>
|
2022-11-09 02:09:59 +00:00
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|
<td class="table-main">Messenger</td>
|
|
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|
|
<td class="table-main"><img src="img/logo-molly.png" width="100px" height="100px"><br>
|
2022-11-08 09:56:58 +00:00
|
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|
<br>
|
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|
Molly</td>
|
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|
<td><a class="table-link" href="https://molly.im/"
|
|
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|
>Molly</a> is a security-hardened, privacy-hardened
|
|
|
|
|
<a class="table-link" href="https://signal.org/"
|
|
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|
|
>Signal</a> client which hardens Signal by using a variety of
|
|
|
|
|
<a class="table-link" href="https://github.com/mollyim/mollyim-android#features"
|
2022-11-09 02:46:46 +00:00
|
|
|
>unique features</a>, allowing
|
2022-11-08 09:56:58 +00:00
|
|
|
<a class="table-link" href="https://github.com/mollyim/mollyim-android/wiki/Data-Encryption-At-Rest"
|
|
|
|
|
>locking the database when not in use</a>, and
|
|
|
|
|
<a class="table-link" href="https://github.com/mollyim/mollyim-android/blob/a81ff7d120adc9d427be17239107343146bad704/app/src/main/java/org/thoughtcrime/securesms/crypto/MasterSecretUtil.java#L91"
|
2022-11-09 02:46:46 +00:00
|
|
|
>utilising Android StrongBox</a> to protect user keys using the device's
|
2022-11-08 09:56:58 +00:00
|
|
|
hardware security module.<br>
|
|
|
|
|
<br>
|
2022-11-09 02:46:01 +00:00
|
|
|
Molly is available in
|
|
|
|
|
<a class="table-link" href="https://github.com/mollyim/mollyim-android#free-and-open-source"
|
|
|
|
|
>2 flavours</a>:<br>
|
|
|
|
|
<ul>
|
|
|
|
|
<li>Molly, which includes the same proprietary
|
|
|
|
|
Google code as Signal to support more features.</li>
|
|
|
|
|
<br>
|
|
|
|
|
<li>Molly-FOSS, which removes
|
|
|
|
|
the proprietary Google code to provide an entirely open source client.</li>
|
|
|
|
|
</ul></td>
|
2022-11-09 02:09:59 +00:00
|
|
|
<td class="table-main">Open source<br>
|
2022-11-08 09:56:58 +00:00
|
|
|
<br>
|
|
|
|
|
(GPLv3)</td>
|
|
|
|
|
</tr>
|
2022-10-29 23:54:59 +01:00
|
|
|
</table>
|
|
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|
<br>
|
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<br>
|
2022-06-30 06:19:28 +01:00
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</body>
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</html>
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