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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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  • As Part of California's Coast Begins to Crumble, Is the Clock Ticking on Moving Radioactive Waste?
    by EditorDavid on 16/09/2026 at 10:04 pm

    "As parts of the Southern California coastline crumbled into the sea, slammed by intense waves and flooding in recent days, oceanographer Kim McCoy had one thing on his mind," reports the Los Angeles Times. He was thinking about "the nuclear waste set in concrete on the beach near San Clemente at the shuttered San Onofre nuclear power plant." "Rising sea levels, storm waves, El Niño which increases wave height ... these could wash away a section of the walkway that protects the San Onofre seawall, and the waste canisters are just 100 feet away from that," the former wave dynamics researcher and longtime advocate against beach storage of nuclear waste said. Most experts agree the risk of erosion damaging the nuclear waste storage system is extremely low in the near term. The plant's owner, Southern California Edison, has promised the California Coastal Commission to move the waste to higher elevation on-site if modeling shows sea level rise and erosion will start to pose a challenge. But the recent waves, fueled by Hurricane Marie far away in the Pacific, resurfaced the issue of the ultimate fate of the highly radioactive spent fuel that used to power the reactors. "At the moment, it is under control, I think it's essential to say that," said James Day, a geology professor at UC San Diego. "But geologically we must be thinking long term. The waste lasts for hundreds, if not thousands of generations...." [In 2103 some of the site's canisters' approach their intended 100-year lifespans, and the utility may have to start the transfer into new cansiters.] The distinctive twin domes that once housed the reactor cores will start coming down early next year. But the 3.6 million pounds of high-level waste will stay in the coastal community indefinitely. How much of a safety hazard that is depends on whom you ask. "San Onofre is sitting on some fairly young rocks in a seismically active region," Day said at a recent symposium at the Scripps Seaside Forum in La Jolla, hosted by the Samuel Lawrence Foundation. "This is not the sort of place you would leave nuclear waste." Others noted that collapse of beach slopes could make the site more vulnerable to tsunamis. They spoke of the corrosive effects of the ocean air on the steel canisters that hold the waste... Edison says its system will be safe for decades to come. "The maximum credible tsunami here would not even overtake the seawall," said Manuel Camargo, principal manager of decommissioning for Edison, standing on the concrete pad that holds the steel waste storage canisters. "The maximum credible earthquake, somewhere around a 7.0 magnitude, would produce something about half of what this system is designed to withstand...." Edison is bolstering a path below the seawall. Based on state data from the California Ocean Protection Council, the seawall would not be inundated before 2050, Camargo said... Plans for a deep geological repository beneath Yucca Mountain in Nevada crumbled in the face of local opposition in 2011. Utilities around the U.S. now sue the federal government every year to recoup their storage expenses because the Department of Energy has not come through on its promise. The lawsuits cost taxpayers $2 million a day, according to Camargo. "It's so safe that it's almost a problem," Camargo said. "It's not a priority to a lot of folks to move it." "The Trump administration's Department of Energy wants to create 'campuses' in several states to store waste," the article points out, "and, in exchange, give local jurisdictions funding to develop different aspects of the nuclear cycle — such as fuel creation, power generation and potentially fuel recycling..." "The administration wants to address the fact that waste is sitting at 80 reactor sites around the country. It also needs places for waste from new reactors it wants to build." Read more of this story at Slashdot.

  • Anthropic Commits to Independent AI Evaluators, Wants Slower Development. Nvidia's CEO Wants It 'As Fast as You Can'
    by EditorDavid on 16/09/2026 at 5:34 pm

    "Anthropic's CEO took the stage at a conference in San Francisco on Tuesday to reiterate his call for a slowdown of AI development," reports the Guardian, " while Nvidia's CEO argued against slowing its development. "Run as fast as you can." Amodei is calling for three courses of action: embedding third-party evaluators inside AI companies; coordinating safety standards among Democratic countries; and, eventually, larger global coordination. At Dreamforce, Amodei said Anthropic has committed to independent evaluators and was "going to have a dialogue with the rest of the industry" on the other two steps. Amodei, xAI's Elon Musk and OpenAI's Sam Altman have recently called for a slowdown in the pace of AI development. ["Dario is right," Musk posted on X.com] Huang, who also made an appearance at Dreamforce on Tuesday, said companies should not slow down AI development. He argued that new regulations were not necessary, advising AI companies to simply wait to release products until they know they are safe rather than begging the US government to intervene... One day prior at the All-In summit in Los Angeles, Donald Trump called Huang while the CEO was on stage. Huang put the president on speakerphone as Trump called the growing concern about AI a "hoax" and asserted again that a slowdown would only benefit China... [OpenAI's] Altman said AI models had advanced so quickly that monitoring and security need to be treated with a "new level of rigor", calling an incident in which OpenAI agents hacked into another company a "wake-up call" for the industry. He also said the public was very "right to be afraid" of AI because of the potential loss of control, and the possibility of a small group of powerful AI companies exerting their views on the world. The cofounder of Google DeepMind posted on X that "Dario's essay points towards the right path forward." And in an internal memo, Microsoft's Satya Nadella endorsed broader third-party testing and warned that companies must take time to make the technology safe, Business Insider reports. Monday Microsoft also published a 37-page training manual "for how we develop our AI, and how we intend it to function during deployment," requesting public feedback. But Michael Burry "is not buying it," reports The Street. The investor made famous in The Big Short "dismissed the united front as 'self-serving' and laid out four numbered objections..." He argued that large language models are not artificial general intelligence, so there is nothing meaningful left to slow down. Fast competition benefits incumbents, he said, and danger warnings work as hype ahead of IPOs. The whole exercise, he added, could mask growth that is already slowing as those IPOs get pushed back. Former Meta AI chief Yann LeCun is also skeptical, posting on X.com that Anthropic's Dario Amodei "was already claiming that GPT2 was too dangerous to open source back in 2019. I made fun of them then. Everyone should make fun of them now." Timnit Gebru, the co-lead of Google's AI ethics team who was fired in 2020, even thinks the AI companies are stoking fears of extinction "to avoid discussing actual harms, like autonomous weapons," according to Wired. But others still remain concerned. "I've been in rooms with the hyperscalers, and the Trump administration officials, and none of them know what to do," CNN commentator Van Jones said in a recent panel discussion. "So I do want to say: nobody's flying the plane on this... I think that the ethicists that work for them — when they are quitting, and they are running out, and they're pointing back at the building and they're waving their arms, and saying 'I'm seeing stuff that's scaring me' — we should take that very seriously." Read more of this story at Slashdot.

  • Firefox Touts Lower CPU Use for Large JPEGs, Faster PDF Viewer Startup (and AI Controls)
    by EditorDavid on 16/09/2026 at 1:04 pm

    Firefox 156 is the second release since Mozilla moved to a twice-monthly release schedule, and the blog OMG Ubuntu notes it has faster start-up times for its built-in PDF viewer and also lower CPU usage when viewing large JPEG images: In Firefox 156, the browser now uses libjpeg-turbo's IDCT scaling to reduce images during decoding, rather than loading a full-size image into memory and then shrinking it. Benchmarks from the bug report show up to 20x less memory used during very large image loading, and decoding is up to twice as fast. Since these speeds were quite fast already, there's no perceptible difference to users. Behind the scenes, it's more efficient. Firefox's built-in PDF viewer starts up to 45% faster in this release. The browser now loads the background PDF.js worker sooner, rather than launching it only when needed. Sponsored suggestions in the address bar are live for users in France, Germany and Italy (Ouais!, Juhu!, etc). These are already available in some other locales. Don't want them? Disable them via Settings > Search > Firefox Suggest > Suggestions from Sponsors. Besides that, the rest of this release is primarily bug fixes — worthwhile and welcome as always. And in about two weeks Firefox 157 will be released, reports PC World. "That update should add support for JPEG XL (JXL), a modern image format that offers the same quality as JPEG at a significantly smaller size. Although JPEG XL was launched in 2021, Safari is the only browser to support it yet. For a short period, Chrome also supported it, but that ended in 2022." Also, a recent Firefox blog post emphasized that it supports whatever level of AI engagement "is right for you... Because the only person telling you how much AI you need should be you." Opting out of upcoming and current AI features on your browser should not require endless navigation through multiple Settings pages. That's why Firefox offers an AI controls section within its General Settings panel. A single, easily located place where you can block current and future AI features and related pop-ups with the swipe of a toggle... For the many people who sit in the middle of the AI usage spectrum, we made sure you can opt in and out of specific features in line with your preferences. Capabilities like AI translations, image alt text in Firefox PDF viewer, tab group suggestions, and key points in link previews can all be individually switched on and off, ensuring you can enjoy such offerings on a case by case basis as it suits your needs... Smart Window is Firefox's most integrated AI experience, but that doesn't mean it compromises our commitment to choice, privacy, and transparency. Our newest window type, which we've been polishing and testing in beta, uses only the context you share with it to help you move work forward and across the finish line. When permitted by you, its built-in, AI-powered assistant can work directly with your open tabs and browsing history to connect the dots. This means comparing information, generating recommendations, summarizing pages, and planning projects without having to feed every crumb of context from your previous and current browsing activity each time you enter a new prompt. And if you want to block Google's AI Overviews, there's over 100 extensions to choose from. Read more of this story at Slashdot.

  • America's Cryptocurrency 'Clarity Act' Fails Spectacularly, Despite Hundreds of Millions in Industry Lobbying
    by EditorDavid on 16/09/2026 at 8:34 am

    "The crypto industry's top legislative priority failed on Tuesday in spectacular fashion," reports Barron's. A procedural motion to advance the bill failed by a vote of 49 to 50, with a handful of Republicans joining all Democrats to shoot it down. The motion needed 60 yes votes to pass, and with the midterm elections looming, the Senate isn't expected to pick the bill back up this year. Among other provisions, the bill would have taken most crypto trading out of the purview of securities regulators, a key goal of firms like Coinbase Global... The vote is especially bitter for the crypto industry, which has spent hundreds of millions of dollars on lobbying and campaign expenditures over the past year to even get to this point. Crypto regulation doesn't even register among the issues voters care most about, and the industry has created massive political action committees to insert itself into the Washington agenda and strike fear into the hearts of lawmakers who might oppose them... Democrats who voted against the bill said that it needed to do more to rein in [Trump's] crypto dealings to get their support. Some GOP lawmakers also voted against the motion after pressure from community bank executives. Bankers argued that the bill needed a stronger ban on high-yield crypto accounts to protect their deposits, a contention that crypto executives and the White House said was nonsense. Concerns about the bill "intensified after President Trump disclosed he and his family had earned $1.4 billion last year from his crypto ventures," reports NPR. "The massive bill — which stretches over 600 pages — would have established the first regulations for the crypto sector in U.S. history. But opponents saw it as the industry's attempt to encode into law a set of rules they saw as far too lenient on the industry, without enough safeguards." A research note from an analyst at Compass Point Research & Trading predicts the bill is now likely tabled until at least 2030, Barron's notes. But they also report what the crypto industry could do next: [C]rypto firms will be leaning heavily on Trump's regulators at the Securities and Exchange Commission, Commodity Futures Trading Commission and Treasury Department, all of whom have said they plan to move swiftly to implement industry friendly rules if a bill didn't pass. The SEC has already dropped all major enforcement actions against crypto firms and has begun to introduce rules that make it easier to raise money from crypto sales without running afoul of the law. The agency is also expected to implement rules making it easier to tokenize traditional assets like stocks. The friendly regulatory environment will in effect give the industry a little more than two years to sink roots into the traditional financial system and consumers' wallets. Even if the SEC took a harsh view of the industry in the future, as it did in President Joe Biden's administration, the agency at that point might find it difficult to put the genie back in the bottle. Read more of this story at Slashdot.

  • Ubuntu's 'Rust-ification' Hits New Milestone: Coreutils Migration is Complete
    by EditorDavid on 16/09/2026 at 4:04 am

    "Ubuntu has managed to do away with GNU Core Utilities in its default stack," reports the blog It's FOSS. The last three utilities — cp, mv and rm — have been moved to versions from the uutils project (which reimplements utilities in Rust). Everything else, from ls and cat to chmod and du, made that jump in earlier releases... Canonical started "oxidizing" Ubuntu last year, and Ubuntu 25.10 became the first release to ship [ the uutils project's] coreutils as the default. That release also made sudo-rs the default privilege tool, replacing a command that had been in place for decades. 26.04 was the release where the plan did slow down quite a bit, as Canonical kept cp, mv, and rm on their GNU versions due to a bunch of TOCTOU issues that were blocking the full implementation. These were caught during an audit, when Canonical commissioned Zellic for two rounds between December 2025 and March 2026, focusing on the most security-sensitive utilities first. Across both rounds, Zellic raised 113 issues, and 44 of them were assigned CVEs. Canonical says the vast majority have been resolved. Getting here has had its ups and downs, and the last stretch was not clean. In July, uutils cp went back into the archive and came straight out again after it broke live image builds. The fix was quick; as the developers marked it "Critical," the fix went upstream, and the migration landed in time for 26.10. When typing commands, nothing changes for you on the surface. uutils coreutils is designed to be a drop-in replacement for essential GNU tools, and the project treats any divergence from GNU as a bug, further pointing out that some options may still be missing or behave differently. So if you prefer staying on the GNU version, you have the option to install the coreutils-from-gnu package that houses all the required components. Read more of this story at Slashdot.

  • While Hollywood Fears an AI Future, China's Film Industry is Embracing It
    by EditorDavid on 15/09/2026 at 11:34 pm

    The Los Angeles Times reports: Chen Yilong has racked up plenty of film and TV credits in his two decades as an actor, but with work getting scarcer he signed a contract in August to license the image of his face to a Chinese production studio. Chen's role will be to sit in front of a video camera and make facial expressions at the prompt of a director. A neutral stare. An angry glare. A look of surprise. Using artificial intelligence, the studio will use images of Chen's face to generate an avatar, also known as a "digital human," to star in an AI-generated movie. "If you can't beat it, join it," said Chen, 38, who works in Beijing. The Chinese film and video industry is being transformed by AI-driven storytelling, fueled by rapid advances in video generation software, and at ground zero are the so-called micro dramas that play out on millions of smartphones. Typically just a minute or two in length, the videos are devoured by Chinese audiences... And the cost of producing them has been cut drastically through the use of AI software developed by Chinese technology juggernauts including Kuaishou Technology and TikTok's global owner, ByteDance. The number of Chinese-made micro dramas surged in the first three months of this year to 128,000, according to the China Netcasting Services Assn. More than 95% of them were made with AI, the association said.... Sun Wei founded Feixiang Universe, the Shenzhen-based studio that cast Chen. The fear of accidentally "stealing someone's face" was a big reason she said she decided to license real people's likenesses for an AI production set during China's Tang Dynasty more than 1,000 years ago. Thanks to AI's training data bias, AI-generated performers tend to have similar features and share a homogenous look, Sun said. Many have flawless skin and extremely symmetrical faces, requiring her and other Chinese AI filmmakers to cast a wide net to "buy" new faces and digitize actor's expressions. Lu Beike, who directed the big-budget Chinese series "Three-Body," felt theAI-generated scenes he'd tried came out sub-standard. "Lu added that if 90% of a film was generated by AI, a real human performance could appear jarring. A real actor's expressions carried more nuance and emotion. The skin textures did not match. Sometimes the only solution was to process the live-action material until the person looked a little less real — until they fit back into the 'AI world,' Lu said." But at Sun Wei's studio, they're thrilled they can produce a 90-minute AI film for $500,000 where professional productions used to cost millions of dollars. According to the article, Sun's team works with ChatGPT, Kimi or DeepSeek to flesh out entire screenplays from a short paragraph. The screenwriter takes over, but "to produce the finished product, Sun's team uses Chinese video-generation models to input the type of scenes, backgrounds and performers they want, with the AI generating 15 seconds of footage each time." Still, the article points out that "Similar tools are being tested in the U.S., and the AI trends upending China's entertainment industry may be a harbinger for what's to come in Hollywood, said Michael Berry, a professor specializing in contemporary Chinese culture at UCLA. Already, Chinese companies that sell AI-powered video-generation software are seeking inroads in Hollywood..." Read more of this story at Slashdot.

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