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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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  • EFF's Position on Flock Camera Database Searches: 'Get a Warrant First' - and Police Use Should Be Restricted By Law
    by EditorDavid on 17/08/2026 at 11:34 am

    Some take their criticism even further. Reacting to Flock's changes, an EFF statement calls it "Too little, too late," while calling it Flock's admission that their technology needs reforms. But... To be clear, our position has long been that police, at a minimum, need to get a warrant, signed by a judge, in order to search for historic ALPR data regarding specific vehicles. For us, it's common sense: if police want to dip into historic ALPR data like they were going back in time to retroactively follow your comings and goings, they need a warrant. There's also nothing stopping Flock from rescinding these latest reforms. This all leads to the bigger and more important issue: We should not be letting companies decide how much privacy we deserve... It shouldn't be up to Flock or any other ALPR vendor to decide how long police can collect and retain data on millions, if not hundreds of millions, of innocent people. We need lawmakers to step up and pass laws that restrict police's use of surveillance technology. After all, the surveillance business model is the problem, and a few company-imposed slapdash reforms aren't going to change that. Read more of this story at Slashdot.

  • Amazon's New User Agreement Seeks To Curb Class-action Suits
    by EditorDavid on 17/08/2026 at 8:24 am

    Amazon has "reintroduced a clause in its user agreement that seeks to prevent shoppers from filing class-action lawsuits against the online retailer," reports Bloomberg, "inserting a legal buffer between itself and plaintiffs attorneys that it removed five years ago." In an email sent to customers on Friday, the company said a new "arbitration agreement and class-action waiver" will require shoppers to resolve disputes outside the courts but said they could still file small claims, cases that typically limit damages to a few thousand dollars... The user-agreement update isn't necessarily binding in court. Plaintiffs attorneys could still seek class-action lawsuits against Amazon, and it would be up to a judge to determine if the user agreement prevents them from doing so. Amazon was contacted for an explanation by Bloomberg, and provided a statement saying they continually update their wording "to better serve our customers." Amazon said they'd "determined" that "reinstating the arbitration clause will offer customers a fast, cost-effective way to resolve disputes while still giving them the option of going to small claims court." Read more of this story at Slashdot.

  • A Rosier Future for Linux Gamers? Epic Games Announces Linux Version of Its Storefront
    by EditorDavid on 17/08/2026 at 5:44 am

    "Epic Games has confirmed that it is working on a Linux version of its storefront, potentially removing the need for third-party launchers on platforms such as Steam Deck," reports PC Guide: The confirmation came during an Ask Me Anything (AMA) on the Epic Games Store's community Discord server. When a user asked whether Epic had any plans for a Linux version of its launcher, an Epic staff member confirmed that it is coming "soon(TM)" in emoji form. Of course, that is far from confirming any kind of date, but it is official confirmation of a Linux version nonetheless. "On top of that, Nvidia's GeForce Now [cloud gaming] app for Linux is also official, having emerged from beta," writes TechRadar, calling it all part of "a rosier future for Linux gamers." And while it's not related to gaming, OpenAI's ["preview"] release of a ChatGPT app for Linux is another milestone for the platform... OpenAI said: "Linux has been one of the most-requested platforms for the desktop app, and this launch extends ChatGPT and Codex across every major desktop operating system." The Epic Games Store arriving natively is great news for gamers running Linux — including SteamOS — as it means a much more convenient way of playing games from the store, as opposed to the current situation with fudging and workarounds (using a third-party app such as the Heroic Games Launcher)... Epic's own Fortnite doesn't work on Linux (and that's down to Epic actively blocking the game from running due to issues around cheating, which remains a source of controversy). Given the apparent changing attitude here with its launcher being ported over, maybe Epic will reverse course on Fortnite eventually. Some gamers on Reddit are highly skeptical about that possibility though, and as one doubting Redditor put it: "I wouldn't hold my breath." Read more of this story at Slashdot.

  • Bipartisan 'Uprising' Against Flock Cameras: a Larger Fight Against Big Tech and Surveillance?
    by EditorDavid on 17/08/2026 at 3:04 am

    Politico notes that over 20 local jurisdictions in America "either stopped using Flock cameras or began the process of doing so in July, according to a tracker maintained by DeFlock, an activist group that has been mapping the company. It's the highest amount in a single month since they began tracking in 2021." Some local officials said the public safety promises weren't worth the cost. The cameras "didn't help us with anything. From a utility aspect, they were just kind of not useful," said Eric Couture, a Democratic first selectman in Killingworth, Connecticut, another city that recently canceled its contract with Flock. "I'd say it was a net negative." And their article adds that it's a bipartisan pushback that "runs parallel to sprawling fights over the future of technology in American life, including the rise of increasingly advanced artificial intelligence tools and the construction of massive data centers needed to power them." Salon even argues Flock's cameras "have become a symbol of growing anger over the efforts by technology oligarchs to impose their dystopian fantasies on the country, replacing liberal democracy with a surveillance state... People are sick of tech billionaires trying to control our lives"" By targeting Flock cameras, activists are building momentum for a larger rebellion against the tech industry — and against political leaders who are complicit in their assault on our freedoms. Flock Safety embodies the dishonesty that has been the prevailing theme of tech corporate communications and marketing for at least the past decade. While the cameras are sold to the public as a banal traffic safety measure, they have prompted an outpouring of stories about how they're being used to violate civil liberties and undermine democracy... According to an exhaustive 10-month analysis by Electronic Foundation Frontier, a nonprofit dedicated to defending civil liberties in our digital age, local police were using the cameras to track protesters, such as those at No Kings rallies, who were then put in a national database to be used across all jurisdictions. Despite claims that the cameras only record license plates, the technology-focused outlet 404 Media found that the database is also being used to collect information on individual people whom cops can then search for using descriptions of clothing, race, gender and body type. The Flock uprising, though, is the stirrings of public understanding that none of this inevitable — and we have the right to fight back... Along with protests against data centers, it's a sign that the public is desperate for a way to fight back against not just AI, but also the anti-democratic forces fueling this latest tech wave. Salon's writer also adds that "what stands out about the burgeoning public rebellion against Flock security cameras is just how fun it all is," citing "a national cat-and-mouse game between vandals and cops that is being merrily followed on social media, mostly by people rooting for the vandals." City council meetings in which citizens swarm to protest paying for the cameras are the new must-see TV. In Huntington, West Virginia, a small city in the heart of Appalachia, one man became an internet folk hero when he stood up at a city council meeting and said, "I'm not gonna waste your time; I'm kinda hungry. But one last thing: Every single Flock camera has about 2-3 pounds of copper and about 1-2 grams of gold. Do with that information what you will." He then walked off in triumph. Read more of this story at Slashdot.

  • Anthropic Criticized For Adding Watermarks to Text that Claude Generates - or Processes
    by EditorDavid on 17/08/2026 at 2:04 am

    This week Anthropic announced its Claude chatbot will watermark the text it generates, reports the blog Futurism. "It works by making subtle changes in the AI's word choices across the text it generates, which are supposed to be imperceptible to a human but, in aggregate, form a pattern that is detectable with the tool." Anthropic said it was implementing the watermark system in response to the European Union's landmark AI Act passed in 2024, which requires that AI companies mark content that's been generated or edited by their systems. TechCrunch notes that other companies including Google, Meta, Microsoft, OpenAI, and Synthesia have committed to adhering to the EU's code. But "The news about Claude watermarking kicked off a firestorm on X," reports Forbes, "with users panicking that AI-assisted writing will now bear a kind of permanent 'scarlet letter.'" (Forbes wonders if media companies are normalizing AI "while at the same time stigmatizing the output.") But there's another issue. Anthropic said the watermark indicates Claude processed text, Business Insider points out, "not that it was necessarily the original author. The company said marks can remain after Claude proofreads, translates, summarizes, or otherwise edits content... a watermark shows that Claude processed text, not necessarily that it wrote it." In the days since, "Dozens of people have posted on X since Monday that they had canceled their Claude subscriptions, citing the watermark." Vladislav Rajtmajer, a freelance developer in the Czech Republic, told Business Insider he canceled his Claude Max subscription on Tuesday, citing the watermark as the main reason. He said he uses AI for code reviews and translations, and worried an AI label on code shipped to clients could raise questions about authorship or trigger contract penalties... Richard Echols, an AI consultant in Georgia, also said he canceled his Claude Max subscription on Wednesday and that the watermark was a major factor in his decision. He said he uses Claude to create documentation for businesses and worried the mark could appear when he had written the underlying material himself and used the chatbot only for edits. "Even if you edit your own work that you wrote, they add the watermark anyway," Echols said... Anthropic isn't the only AI lab to use watermarks: Google uses its SynthID technology to watermark AI-generated content, and OpenAI uses SynthID for supported images and audio. Elon Musk's social media platform X also adds a "Made with AI" tag on content it determines to be AI-generated or manipulated. Long-time Slashdot reader kmleon (also a tech consultant and RPG researcher) experienced another issue. He'd built some software using their own custom-built AI tool, only asking Claude to do some testing. "Little did I know that Claude would sometimes decide, since it was involved on the edges... to take credit for all of my work, claiming some parts were either '100%' or 'Co-Authored/Created' by Claude.Ai / Claude Code!" I'm sure the good folks at Anthropic will eventually tweak Claude enough to, hopefully, not make these mistakes in the future.... I only became aware of it today, because I recently setup scanners to catch Claude incorrectly watermarking any content it touches for various projects I'm working on. I found that it has (apparently as far back as Sonnet 4.6, but as recently as today, August 14th, 2026) sometimes been mistakenly over-zealous in taking credit for 100% creating or co-authoring docs, code, images, videos, etc. I've only, so far, found about a dozen instances spanning the past year, and most of them appear to have been injected in the last few weeks, so it is not a common issue (yet). On the bright side? Maybe watermarks can help AI stop training on AI-generated text. Although Forbes also reports that Google "announced on Friday that it will now let users remove the visible watermark from AI-generated images, videos and music created with several of its models." Read more of this story at Slashdot.

  • Linux Kernel 7.2 Has Been Officially Released with Many New Features
    by EditorDavid on 17/08/2026 at 12:03 am

    Linux Kernel 7.2 has just been officially released with a slew of new features, reports the blog 9to5Linux. Highlights of Linux 7.2 "include cache-aware load-balancing support, initial HDMI 2.1 FRL support to the AMDGPU driver, support for devres-based management of ACPI notify handlers, initial CRI platform support for the Intel Xe driver, and Rust support for the IBM System/390 (S/390) architecture." Linux kernel 7.2 also introduces a "Fair(er)" GPU scheduler, support for the 'zerocopy' library to Rust support to make zero-cost memory manipulation effortless, new hwcaps for the 2025 dpISA extensions on the AArch64 (ARM64) architecture, and enables large folios by default for the Btrfs file system. It also brings Intel CPU model number support for Panther Lake R processor series, improvements to the kernel's swap subsystem, support for multi-size transparent huge pages (mTHPs) to the khugepaged kernel thread, and support for compressed files to the SMB filesystem. On top of that, Linux 7.2 improves the new NTFS filesystem introduced in Linux kernel 7.1, adds devicetree updates for 64-bit NXP/Freescale and Qualcomm platforms, introduces MPTCP signaling support for IPv6 addresses, adds GRO/GSO support for PPPoE, and brings more SMP load-balancing updates... [T]he TCP authentication option has been implemented, and there are also some Thunderbolt networking improvements. Also worth mentioning is that the KVM subsystem has received support for AMD's "guest-mode execution trap" and Intel's "mode-based execution control" (MBEC) features, the NFS file system's default block size was bumped to 4MB on systems with at least 16GB RAM, and support for the Intel Trusted Domain Extensions (TDX) feature has been added. Thanks to Slashdot reader prisoninmate for bring the news. Read more of this story at Slashdot.

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