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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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  • Rivian's Stock Spikes 27% After Reporting $144 Million Profit in 2025
    by EditorDavid on 15/02/2026 at 11:35 pm

    Rivian's stock skyrocketed 27% Friday after the electric car maker "shocked the market with strong earnings results," reports the Los Angeles Times, "proving itself an outlier in the EV market, which has been struggling with the end of government subsidies and cooling consumer excitement." They add that Rivian's strong earnings results suggest that "after years of struggling with losses, it may have at last found a path to profitability." On Thursday, Rivian reported gross profits for 2025 of $144 million, compared with a net loss in 2024 of $1.2 billion... Rivian credited the swing to gross profit to "strong software and services performance, higher average selling prices, and reductions in cost per vehicle..." Rivian delivered 42,247 vehicles in 2025 and produced 42,284 vehicles. The company still reported a $432-million net loss for the year for automotive profits, an improvement from 2024. But Rivian's software and services revenue grew more than threefold to $1.55 billion for the year, reports TechCrunch. "And the joint venture with Volkswagen Group was behind most of that growth, according to Rivian." VW and Rivian formed a technology joint venture in 2024 that is worth up to $5.8 billion. The joint venture is milestone-based and in 2025 Rivian hit the mark, which meant a $1 billion payout in the form of a share sale. Under the terms of the JV, Rivian will supply VW Group with its existing electrical architecture and software technology stack... Rivian is expected to receive an additional $2 billion of capital as part of the joint venture in 2026, CFO Claire McDonough said Thursday on the company earnings call... And while the funds provide a hefty stopgap, Rivian's financial success in 2026 will hinge largely on the rollout of its next EV, the R2 [priced around $45,000]. Read more of this story at Slashdot.

  • India's New Social Media Rules: Remove Unlawful Content in Three Hours, Detect Illegal AI Content Automatically
    by EditorDavid on 15/02/2026 at 10:35 pm

    Bloomberg reports: India tightened rules governing social media content and platforms, particularly targeting artificially generated and manipulated material, in a bid to crack down on the rapid spread of misinformation and deepfakes. The government on Tuesday (Feb 10) notified new rules under an existing law requiring social media firms to comply with takedown requests from Indian authorities within three hours and prominently label AI-generated content. The rules also require platforms to put in place measures to prevent users from posting unlawful material... Companies will need to invest in 24-hour monitoring centres as enforcement shifts toward platforms rather than users, said Nikhil Pahwa, founder of MediaNama, a publication tracking India's digital policy... The onus of identification, removal and enforcement falls on tech firms, which could lose immunity from legal action if they fail to act within the prescribed timeline. The new rules also require automated tools to detect and prevent illegal AI content, the BBC reports. And they add that India's new three-hour deadline is "a sharp tightening of the existing 36-hour deadline." [C]ritics worry the move is part of a broader tightening of oversight of online content and could lead to censorship in the world's largest democracy with more than a billion internet users... According to transparency reports, more than 28,000 URLs or web links were blocked in 2024 following government requests... Delhi-based technology analyst Prasanto K Roy described the new regime as "perhaps the most extreme takedown regime in any democracy". He said compliance would be "nearly impossible" without extensive automation and minimal human oversight, adding that the tight timeframe left little room for platforms to assess whether a request was legally appropriate. On AI labelling, Roy said the intention was positive but cautioned that reliable and tamper-proof labelling technologies were still developing. DW reports that India has also "joined the growing list of countries considering a social media ban for children under 16." "Young Indians are not happy and are already plotting workarounds." Read more of this story at Slashdot.

  • Sam Bankman-Fried Requests New Trial in FTX Crypto Fraud Case
    by EditorDavid on 15/02/2026 at 9:35 pm

    While serving his 25-year prison sentence, "convicted former cryptocurrency mogul Sam Bankman-Fried on Tuesday requested a new federal trial," reports Courthouse News, "based on what he says is newly discovered evidence concerning his company's solvency and its ability to repay all FTX customers for what prosecutors portrayed as the looting of $8 billion of his customers' money..." Bankman-Fried says evidence disclosed since his trial disproves prosecutors' case about Bankman-Fried's hedge fund running a multi-billion deficit of FTX customer funds, and instead shows that FTX always had sufficient assets to repay the cryptocurrency platform's customer deposits in full. "What it faced was a short-term liquidity crisis caused by a run on the exchange, not insolvency," he wrote... Bankman-Fried also accuses the Department of Justice of coercing a guilty plea and cooperation deal from Nishad Singh — a close friend of Bankman-Fried's younger brother — who testified at trial as a cooperating witness... Bankman-Fried says in the motion that prior to being pressured into a guilty plea, Singh's initial proffer to investigators "contradicted key parts of the government's version of events. But following threats from the government, Mr. Singh changed his proffers to fit the government's narrative and pleaded guilty to charges carrying up to 75 years in prison, with a promise from the prosecution that it would recommend little or no jail time if it concluded that his assistance in prosecuting Mr. Bankman-Fried was 'substantial,'" he wrote in the petition... Additionally, Bankman-Fried requested that U.S. District Judge Lewis Kaplan, who presided over his 2023 trial, recuse himself from ruling on this motion, "because of the manifest prejudice he has demonstrated towards Mr. Bankman-Fried." "Bankman-Fried's mother, Stanford Law School professor Barbara Fried, filed his self-represented bid for a new trial on his behalf in Manhattan federal court..." Read more of this story at Slashdot.

  • 'Babylon 5' Episodes Start Appearing (Free) on YouTube
    by EditorDavid on 15/02/2026 at 7:34 pm

    Cord Cutters News reports: In a move that has delighted fans of classic science fiction, Warner Bros. Discovery has begun uploading full episodes of the iconic series Babylon 5 to YouTube, providing free access to the show just as it departs from the ad-supported streaming platform Tubi... Viewers noticed notifications on Tubi indicating that all five seasons would no longer be available after February 10, 2026, effectively removing one of the most accessible free streaming options for the space opera. With this shift, Warner Bros. Discovery appears to be steering the property toward its own digital ecosystem, leveraging YouTube's vast audience to reintroduce the show to both longtime enthusiasts and a new generation. The uploads started with the pilot episode, "The Gathering," which serves as the entry point to the series' intricate universe. This was followed by subsequent episodes such as "Midnight on the Firing Line" and "Soul Hunter," released in sequence to build narrative momentum. [Though episodes 2 and 3 are mis-labeled as #3 and #4...] The strategy involves posting one episode each week, allowing audiences to experience the story at a paced rhythm that mirrors the original broadcast schedule... For Warner Bros. Discovery, this initiative could signal plans to expand the franchise's visibility, especially amid ongoing interest in reboots and spin-offs that have been rumored in recent years. Babylon 5 creator J. Michael Straczynski answered questions from Slashdot's readers in 2014. Long-time Slashdot reader sandbagger offers this summary of the show "for those not in the know... In the mid-23rd century, the Earth Alliance space station Babylon Five, located in neutral territory, is a major focal point for political intrigue, racial tensions, and a major war as Earth descends into fascism and cuts off relations with its allies." Read more of this story at Slashdot.

  • DNA Mutations Discovered In the Children of Chernobyl Workers
    by EditorDavid on 15/02/2026 at 6:34 pm

    Researchers performed genome sequencing scans on 130 people whose fathers were Chernobyl cleanup workers. Comparing the scans to control groups, they found evidence for the first time for "a transgenerational effect" from the father's prolonged exposure to low-dose ionizing radiation. ScienceAlert reports: Rather than picking out new DNA mutations in the next generation, they looked for what are known as clustered de novo mutations (cDNMs): two or more mutations in close proximity, found in the children but not the parents. These would be mutations resulting from breaks in the parental DNA caused by radiation exposure. "We found a significant increase in the cDNM count in offspring of irradiated parents, and a potential association between the dose estimations and the number of cDNMs in the respective offspring," write the researchers in their published paper... This fits with the idea that radiation creates molecules known as reactive oxygen species, which are able to break DNA strands — breaks which can leave behind the clusters described in this study, if repaired imperfectly. The good news is that the risk to health should be relatively small: children of exposed parents weren't found to have any higher risk of disease. This is partly because a lot of the cDNMs likely fall in 'non-coding' DNA, rather than in genes that directly encode proteins. Read more of this story at Slashdot.

  • Oldest Active Linux Distro Slackware Finally Releases Version 15.0
    by EditorDavid on 15/02/2026 at 5:34 pm

    Created in 1993, Slackware is considered the oldest Linux distro that's still actively maintained. And more than three decades later... there's a new release! (And there's also a Slackware Live Edition that can run from a DVD or USB stick...) . Slackware's latest version was released way back in 2016, notes the blog It's FOSS: The major highlight of Slackware 15 is the addition of the latest Linux Kernel 5.15 LTS. This is a big jump from Linux Kernel 5.10 LTS that we noticed in the beta release. Interestingly, the Slackware team tested hundreds of Linux Kernel versions before settling on Linux Kernel 5.15.19. The release note mentions... "We finally ended up on kernel version 5.15.19 after Greg Kroah-Hartman confirmed that it would get long-term support until at least October 2023 (and quite probably for longer than that)." In case you are curious, Linux Kernel 5.15 brings in updates like enhanced NTFS driver support and improvements for Intel/AMD processors and Apple's M1 chip. It also adds initial support for Intel 12th gen processors. Overall, with Linux Kernel 5.15 LTS, you should get a good hardware compatibility result for the oldest active Linux distro. Slackware's announcement says "The challenge this time around was to adopt as much of the good stuff out there as we could without changing the character of the operating system. Keep it familiar, but make it modern." And boy did we have our work cut out for us. We adopted privileged access management (PAM) finally, as projects we needed dropped support for pure shadow passwords. We switched from ConsoleKit2 to elogind, making it much easier to support software that targets that Other Init System and bringing us up-to-date with the XDG standards. We added support for PipeWire as an alternate to PulseAudio, and for Wayland sessions in addition to X11. Dropped Qt4 and moved entirely to Qt5. Brought in Rust and Python 3. Added many, many new libraries to the system to help support all the various additions. We've upgraded to two of the finest desktop environments available today: Xfce 4.16, a fast and lightweight but visually appealing and easy to use desktop environment, and the KDE Plasma 5 graphical workspaces environment, version 5.23.5 (the Plasma 25th Anniversary Edition). This also supports running under Wayland or X11. We still love Sendmail, but have moved it into the /extra directory and made Postfix the default mail handler. The old imapd and ipop3d have been retired and replaced by the much more featureful Dovecot IMAP and POP3 server. "As usual, the kernel is provided in two flavors, generic and huge," according to the release notes. "The huge kernel contains enough built-in drivers that in most cases an initrd is not needed to boot the system." If you'd like to support Slackware, there's an official Patreon account. And the release announcement ends with this personal note: Sadly, we lost a couple of good friends during this development cycle and this release is dedicated to them. Erik "alphageek" Jan Tromp passed away in 2020 after a long illness... My old friend Brett Person also passed away in 2020. Without Brett, it's possible that there wouldn't be any Slackware as we know it — he's the one who encouraged me to upload it to FTP back in 1993 and served as Slackware's original beta-tester. He was long considered a co-founder of this project. I knew Brett since the days of the Beggar's Banquet BBS in Fargo back in the 1980's... Gonna miss you too, pal. Thanks to long-time Slashdot reader rastos1 for sharing thre news. Read more of this story at Slashdot.

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