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The National Aeronautics and Space Administration (NASA) has revealed information about a breach of its internal infrastructure that went undetected for nearly a year. Notably, the network was isolated from external threats, and the breach occurred internally via a Raspberry Pi board that was connected without authorization at the Jet Propulsion Laboratory. This board was used by staff as an entry point into the local […]
In the early 1970s, American writer Michael Hart gained unrestricted access to a Xerox Sigma 5 computer at the University of Illinois. To make good use of the machine's resources, he decided to create the first electronic book by reprinting the U.S. Declaration of Independence. Today, digital literature has become widespread, largely due to the proliferation of portable devices (smartphones, e-readers, laptops). This […]
Earlier on the blog, we wrote about the emergence of ebook formats DjVu and FB2. Today's topic is EPUB. Image: Nathan Oakley / CC BY History of the Format In the 90s, proprietary solutions dominated the ebook market, with many e-reader manufacturers developing their own formats. For instance, NuvoMedia used files with the .rb extension. This […]
Damien Miller (djm @) has added an improvement to OpenSSH aimed at enhancing protection against various side-channel attacks, such as Spectre, Meltdown, RowHammer, and RAMBleed. The added protection is designed to prevent the recovery of private keys residing in memory by exploiting data leaks through side channels. The essence of the protection is that private keys, during moments of inactivity, […
The Internet seems to be a strong, independent, and indestructible structure. In theory, the strength of the network is sufficient to withstand a nuclear explosion. In reality, the Internet can be brought down by a single small router. This is because the Internet is a jumble of contradictions, vulnerabilities, mistakes, and cat videos. The foundation of the Internet, the BGP protocol, is full of issues. It's surprising that it's still functioning. Beyond the flaws inherent in the Internet itself, it's also being broken by everyone […]
A tale was quickly told, but the work took a long time. More than a year and a half ago, I wanted to assemble my own NAS, and the starting point for building the NAS was organizing the server room. While sorting through cables, cases, and relocating a vintage 24-inch HP monitor to the dump, I discovered a cooler from Noctua. After considerable effort, […]
In our previous material, we discussed the features of the DjVu format. Today, we've decided to focus on the FictionBook2 format, better known as FB2, and its 'successor' FB3. / Flickr / Judit Klein / CC The Emergence of the Format In the mid-1990s, enthusiasts began digitizing Soviet books. They translated and saved literature in various formats. One of the first libraries […]
The code for the Mutter window manager, developed within the GNOME 3.34 development cycle, includes initial support for the new transactional (atomic) KMS (Atomic Kernel Mode Setting) API for switching video modes, which allows for verification of parameters before actually changing the hardware state all at once and, if necessary, rolling back the change. From a practical point of view, support for the new API is the first step toward transitioning Mutter to […]
Mozilla developers have published mockups of upcoming improvements to interface elements related to protecting confidential data and blocking tracking of movements. Among the innovations is a new option for blocking social media widgets that track users' movements on external sites (for example, the Like buttons from Facebook and message embeds from Twitter). For authentication forms through social media accounts, the option is provided to […]
As part of the VKHR (Vulkan Hair Renderer) project, supported by AMD and RTG Game Engineering, a realistic hair rendering system is being developed using the Vulkan graphics API. The system supports real-time rendering when modeling hairstyles composed of hundreds of thousands of strands and millions of linear segments. By varying the level of detail, it allows for adjustments between performance and […]
Hello, Habr! Today, I will talk about what my colleagues and I have been working on for several months: push notifications for mobile messengers. As I mentioned before, our application focuses mainly on security. Therefore, we investigated whether push notifications have any 'weak points,' and if so, how we can mitigate them to add this useful feature to […]
Checking smartphones and laptops at airports is becoming the norm for many countries. Some see it as a necessity, others as an invasion of privacy. We discuss the situation, the latest developments on the topic, and explain how to navigate the new circumstances. / Unsplash / Jonathan Kemper The Privacy Issue at the Border In 2017 alone, customs services in the U.S. conducted 30,000 […]
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