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A Nice Little Cryptography Primer

By itss | 28/06/2021
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Pun Intended.

Category: Technology
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  • Xbox's New Disc-to-Digital Program Gives Physical Games a Digital Future
    by BeauHD on 26/08/2026 at 7:00 pm

    An anonymous reader quotes a report from Ars Technica: For decades, console owners have faced a choice between the convenience of digital downloads and the permanence of physical game discs. Soon, Xbox owners will be able to get the best of both worlds for thousands of supported titles as part of a newly announced disc-to-digital program. The program -- announced today ahead of testing for Xbox Insiders starting August 31 -- will let players claim a "digital entitlement" for "most Xbox One and Xbox Series X disc-based games" simply by inserting the disc into a console and launching it. That game will then be playable completely digitally, without the need to ever insert the disc, as long as you (or a member of your family account) is logged in. The digital entitlement will also allow access to features like Xbox Play Anywhere (for play on PC) and Xbox Cloud Gaming, for supported titles. Microsoft says that your physical disc will "continue to work exactly as it always has" after the digital entitlement is claimed. But before you get any ideas, the fine print on the announcement mentions that there is only "one revokable license per game disc," so if you resell that disc or loan it to a friend, that digital entitlement could be transferred to a new account when someone else puts it into their console. A leaked memo obtained by the Verge earlier this month suggests that publishers have to actively opt in to allow their game discs to activate digital entitlements, which could explain why "most" but not all Xbox One and Series X titles are supported. Windows Central separately suggests, based on discussion with unnamed sources, that "some discs may be incompatible due to how they were manufactured at the time," which could explain why original Xbox and Xbox 360 discs are not being discussed for the program. "While not every title will be available at launch, this is an important step toward a future where players can have greater confidence that the games they buy remain with them for years to come," said Xbox Vice President Jason Ronald. Read more of this story at Slashdot.

  • Amazon to Acquire DuckLabs, Adding the Team Behind DuckDB
    by BeauHD on 26/08/2026 at 6:25 pm

    Amazon has agreed to acquire DuckLabs, bringing the team behind the popular open-source DuckDB database into AWS. "The deal fits Amazon's broader push to turn S3, its flagship cloud storage service, into a place where customers analyze data rather than just store it," reports GeekWire. "It gives Amazon a team experienced in building fast, lightweight analytics software that runs directly against data sitting in cloud storage." The DuckDB project itself will remain free and open source under the MIT license, overseen by the independent DuckDB Foundation. From the report: Employees of DuckLabs will join Amazon Web Services, including co-founders and DuckDB creators Hannes Muhleisen and Mark Raasveldt, who will continue leading the team and setting the project's technical direction. They will remain based in Amsterdam, where the team will continue developing DuckDB and related projects. [...] Financial terms were not disclosed. Amazon said it has signed a definitive agreement and expects the acquisition to close shortly. DuckLabs said it expects to become part of AWS in early September. Jordan Tigani, the CEO of MotherDuck, which sells a cloud service built on DuckDB, sees Amazon's acquisition as a predictable move to turn DuckDB's growing popularity into an AWS business. "That's Amazon's playbook, after all: wait until an open source project gets big enough, then launch it as a service," he wrote in a blog post, adding that "they're not acquiring Duck Labs just because they love open source." Tigani also believes the deal could ultimately strengthen DuckDB, since Amazon has an incentive to keep the project open and widely adopted: "If DuckDB becomes the standard, it is going to drive a lot more compute on their infrastructure, which is where they make their money." Read more of this story at Slashdot.

  • Meta Reaches $18 Billion of Settlements Over Children's Social Media Addiction
    by BeauHD on 26/08/2026 at 5:00 pm

    Meta has agreed to pay up to $18 billion and make major changes to Facebook and Instagram to settle claims from most U.S. states that the platforms were designed to addict children and misled users about their safety. For the next decade, teens will be limited to two hours a day and blocked from using the apps between midnight and 6 a.m. without parental consent. Meta will, however, still be allowed to use personalized recommendations and targeted advertising. Reuters reports: The settlements include more than $17.6 billion of payments to 48 U.S. states, Washington, D.C., Puerto Rico, American Samoa and the Northern Mariana Islands. Meta will also pay $459 million to resolve states' privacy claims related to the Cambridge Analytica scandal, where the British consulting firm collected personal data of millions of Facebook users. California would receive the highest payout, $2.2 billion, and New York and Texas would each receive more than $1 billion. Some of the payout is contingent on whether Alphabet's YouTube and ByteDance's TikTok impose similar protections for children. [...] The settlement requires approval by U.S. District Judge Yvonne Gonzalez Rogers, who oversaw the trial that began on August 18. Gonzalez Rogers still oversees thousands of lawsuits by individuals, school districts, and state and local governments accusing social media companies of harming children. Meta itself still faces thousands of lawsuits by individuals, school districts and municipalities. The next trials are slated for October in Los Angeles. Read more of this story at Slashdot.

  • Firefox 157 Will Include JPEG XL By Default On All Platforms
    by BeauHD on 26/08/2026 at 4:00 pm

    Mozilla plans to enable JPEG XL decoding by default in Firefox 157, which is due at the end of September. Phoronix reports: Firefox Nightly has JPEG-XL support enabled by default right now to help in vetting this support while Mozilla believes the support is in good enough shape for a stable debut with Firefox 157. This follows Chrome shipping JPEG-XL and Google Research developing jxl-rs as a Rust-based JPEG-XL image decoder that is both performant and secure. In today's Mozilla Hacks blog post they elaborate on JPEG-XL vs. AVIF image formats: "JPEG XL: Excels at lossless imagery, progressive rendering, and further compressing JPEGs without quality loss. AVIF: Excels at web-quality photographic images, and images that have a mix of sharp edges and flat surfaces. ... Although AVIF tends to produce smaller files at web-quality than JPEG XL, AVIF only has basic progressive rendering support. So, for very large images, it may be worth taking the filesize hit with JPEG XL." Read more of this story at Slashdot.

  • Chinese Government Fears AI Might Replace Human Intimacy
    by BeauHD on 26/08/2026 at 3:00 pm

    China has imposed new restrictions on AI companion services over concerns they can foster "emotional dependence or addiction" and replace real-world social interaction. Officials are also worried that increasingly satisfying AI relationships could deepen loneliness and further discourage marriage and parenthood. The Guardian reports: No country has rolled out AI as comprehensively and as enthusiastically as China; the country's demographic challenges are forcing the government to turn to technology to solve future labour shortages. Elderly people use chatbots to answer medical questions, while young children have AI education in schools. But the authorities are increasingly worried that AI might exacerbate existing social problems including loneliness, unemployment and -- in the eyes of Beijing -- singledom. New rules introduced on July 15 ban AI companions for minors and mandate certain restrictions for chatbots marketed to adults. Some major providers including Doubao removed the companion function entirely to ensure compliance. The government says it is worried about chatbots fostering "emotional dependence or addiction" in users. It has warned companies against offering services that "replace social interaction." While many countries are grappling with how to limit the potential harm of AI chatbots, particularly for young people, China's rules are the most sweeping to be implemented on a national scale. [...] But talking to AI is now so commonplace that it would be hard for the government to end the practice entirely, and the new rules include large loopholes for AI services that are deemed educational or "which do not involve continuous emotional interaction." The government "has already recognized that AI companions or AI-related applications are a vital part in the citizens' everyday life," says Liang Ge, a lecturer in digital sociology at the University of Manchester. In many sectors, the government is still pushing the use of AI as a way of easing looming demographic pressures. Read more of this story at Slashdot.

  • Scientists May Have Figured Out Why Dead Brains Don't Always Rot
    by BeauHD on 26/08/2026 at 11:00 am

    fahrbot-bot shares a report from Smithsonian Magazine: The brain is one of the first organs to begin decomposing after death. Yet archaeologists have discovered more than 4,400 preserved human brains around the world, some of which have remained intact for the last 12,000 years. In hundreds of cases, the brain was the only soft tissue left among otherwise skeletal remains. But how and why do brains sometimes persist for millennia while all other types of soft tissue disappear? This preservation paradox has stumped scientists for years. Now, however, a team of researchers say they may have solved the mystery. If a brain ends up in a wet, oxygen-starved environment, the processes that usually cause decay can have the opposite effect, researchers report in a study published in the August 7 issue of the Journal of Proteome Research. "Under the right conditions, preservation actually arises from decay itself: The same reactions that degrade tissue can also weld the breakdown products together into something far tougher," study co-author Alexandra Seviour, a paleobiologist at the University of Oxford in England, tells Live Science's Victoria Atkinson. Following experiments on 72 mouse carcasses (described in the article) the scientists think they know why. When oxygen is abundant, it triggers a cascading, chemical chain reaction that causes brain proteins to break down rapidly. This sequence hinges on free radicals, highly reactive, unstable molecules that "steal" electrons from nearby atoms and molecules. The process happens in the brains of living people too, and if left unchecked, can cause health problems. In low-oxygen environments, however, this chemical sequence appears to play out differently. The researchers' analyses hint that free radicals instead react and bond with nearby proteins, making the overall tissue tougher and more resistant to decomposition, Seviour tells Chemical and Engineering News' Anirban Mukhopadhyay. The findings show that "decay is not the opposite of preservation but, under specific chemical constraints, one of its mechanisms," the researchers write in the paper. Read more of this story at Slashdot.

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