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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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  • California Rushes To Prepare For Massive 'Kelvin' Wave, Predicted Sea Level Rise
    by BeauHD on 02/10/2026 at 3:30 am

    fjo3 shares a report from The Guardian: Communities across California are rushing to prepare for the imminent arrival of the so-called "Kelvin wave," a massive underwater band of warm water threatening to inundate swaths of the vast North American shoreline. The wave is nearing southern California and expected to reach the San Francisco Bay Area by early October, as it crawls toward Alaska. Waters could rise by a foot along the California coast, according to scientists, who have warned that this could dramatically double the 8-12in rise in sea levels already caused by climate change over the last century. The Kelvin wave doesn't climb and crash like a typical ocean wave; rather, it swells the tides from beneath the surface. It's effectively a massive slosh of warm water, driven by El Nino conditions, that moves across the Pacific before colliding with the South American coastline and surging north. It also won't transport water in the way a tsunami might, but creates conditions that enable higher sea levels to linger. On their own, Kelvin waves aren't always hazardous, according to Mike Jacox, a research oceanographer with the National Marine Fisheries Service, though they can reduce the growth of phytoplankton that form the base of the marine food web. "But when there are very high tides or storm surges, their effects can be amplified," he said. If the rising waters coincide with other climatic events, such as rainstorms and high tides, the phenomenon could swallow beaches, chew away bluffs and coastlines, and submerge streets, homes and businesses. "This coming Kelvin wave is just the beginning," said Dr Jonathan Warrick, a research geologist at the US Geological Survey. "The thing to look out for is what will happen in January, February and March -- that's when we get the biggest storms, we get our largest waves and we have some very large tides." If these events align, their effects will compound, setting the stage for a tumultuous winter. Together, Warrick said, the systems will pack a far bigger punch. "When it comes to these storms and the tides," he said, "we really are kind of rolling the dice." Read more of this story at Slashdot.

  • Amazon's New Kindle Accessories Bring Back Physical Controls
    by BeauHD on 02/10/2026 at 1:00 am

    Alongside a refreshed Kindle lineup, Amazon today introduced two accessories that bring physical buttons back to its touchscreen e-readers. The $34.99 Kindle Click is a Bluetooth remote that lets readers turn pages and adjust brightness without touching the device, while a new $79.99 magnetic cover is available for select Paperwhite and Colorsoft models. GeekWire reports: Amazon says [the Kindle Click is] meant for reading under the covers, on a treadmill, or on an airplane tray table. It's available for preorder and ships Oct. 28. It recharges over USB-C, includes side buttons for adjusting brightness, and works with Kindles released in 2024 or later. The company cited BookTok as an inspiration, Bloomberg reported, a reference to the community of readers on TikTok who post book recommendations, reviews and their reading setups. Kindle fans there have been showing off third-party clickers for years. Amazon is also bringing back physical page-turn buttons, which disappeared when the company discontinued the Kindle Oasis in 2024. This time they come in a separate $79.99 magnetic cover, which works only with the new Signature Edition versions of the Paperwhite and Colorsoft. The new Kindles have screens that sit flush with the edges, colors that wrap around to the front, and optional aluminum housings. They also have user-replaceable batteries to comply with European Union rules, Amazon told The Verge. The base Kindle starts at $149.99, or $189.99 in aluminum. The Paperwhite starts at $199.99 and the Colorsoft at $289.99, with Signature Editions at $249.99 and $319.99. Those prices match what Amazon has charged since August, when it raised Kindle prices by $40 to $50, citing memory and storage costs. The base Kindle is available now. The Paperwhite and Colorsoft ship Oct. 28. Read more of this story at Slashdot.

  • Russian-Owned Snooping Software Used By US Secret Service
    by BeauHD on 01/10/2026 at 11:00 pm

    Bruce66423 shares a report from The Telegraph: British police forces, including specialist units within the Metropolitan Police, have used Oxygen Forensics software to break into the phones of suspects during live investigations, public documents show. The Virginia-based company behind the software has been accused in the US of having hidden its Russian ownership to avoid sanctions, before it was awarded government contracts. Its American chief executive and a Russian national were arrested last week after a US investigation found the company had sought to hide its ownership in an alleged attempt to avoid sanctions and scrutiny. [...] By September 2024, the US Secret Service had awarded Oxygen a five-year contract for its software. In December 2022, and in October 2023, Oxygen's chief executive told the US government that Oxygen Forensics had "no immediate or highest-level owner." By September 2024, the US Secret Service had awarded Oxygen a five-year contract for its software. In March, Mr Reiber allegedly told the US government that there had been no Russians involved in developing the software and that no one in Russia had access to the environment in which it was built. US prosecutors say this was false. If convicted, both Mr Reiber and Mr Davydov could face a sentence of 20 years in prison. Read more of this story at Slashdot.

  • Cloudflare Tries to Outplay Jev With Open-Weight Clef Models
    by BeauHD on 01/10/2026 at 10:00 pm

    Cloudflare has launched two open-weight decision models, Clef and Clef-flash, designed for structured yes/no, multiple-choice, and ranking tasks while also supporting images, video, and up to a 64K context window. Cloudflare says its models outperform TypeSafe's Jev on several benchmarks and can run locally from Hugging Face. The Register reports: For starters, Clef has an LLM backbone. According to Cloudflare, Clef uses specially post-trained, frozen versions of Qwen3.8-27B and Qwen3.5-9B for Clef and Clef-flash, respectively, with the Qwen backbone performing a prefill-only pass during inference. Clef is still fast - faster than Jev, to be fair - and scores choices in parallel after that prefill-only pass. It's not clear what Jev's underlying architecture is, as TypeSafe has kept that a secret. As for its speed and capability, Clef moves fast. Cloudflare ran it against Jev and some other open decision models using the Jev Decision Index available on Hugging Face, and the company's own ranking suggests Clef is slightly slower than other open models, but more accurate, with Clef-flash just as accurate as most of the others, but far faster. To be fair to the competition, Cloudflare self-reported its own scores against the benchmark, and they have yet to be reproduced for ranking on the official Decision Index. Cloudflare also ran Clef against TypeSafe's own benchmarks, and claimed it beat Jev in three out of four areas, only losing out on agent trace observability. Even if it were a bit slower or less accurate, Clef has another major leg up on Jev: It's not limited to classifying text -- it can also handle images and video. Additionally, Clef supports a 64k context window. Jev can also handle up to 64k tokens across a request, although its state plus longest individual question is limited to 32k. Read more of this story at Slashdot.

  • Ryan Roslansky Is Leaving After Nearly 18 Years At LinkedIn and Microsoft
    by BeauHD on 01/10/2026 at 9:00 pm

    Ryan Roslansky is leaving Microsoft and LinkedIn after nearly 18 years, triggering another leadership shuffle across Office and Teams. "Roslansky, who until recently was the CEO of LinkedIn, was promoted to the head of Office last year and then took control of Microsoft Teams earlier this year," notes The Verge. From the report: "Ryan leaves the organization in a strong position," says Microsoft CEO Satya Nadella in an internal memo. "Over the past year, Ryan's team has done critical work bringing together the product, engineering, and design foundations that have made this next phase possible." Roslansky is leaving a week after Microsoft announced its new Copilot, which the company is positioning as "the OS for work." He's also leaving around a month after calling fully AI-generated documents "a doom loop" for workers. "If we're not careful, we'll end up with a very expensive way to avoid writing and reading in an ocean of sameness, genericness," said Roslansky in his LinkedIn post. Microsoft is now moving the teams behind Office and Microsoft Teams over to Charles Lamanna, as part of the Copilot, Agents, and Platform (CAP) organization. [...] Microsoft's chief design officer, Jon Friedman, is also moving to report to Copilot chief Jacob Andreou. Microsoft appointed Dan Shapero as its LinkedIn CEO earlier this year, and he will continue in this role and report directly to Nadella. Read more of this story at Slashdot.

  • Micron Projects Tightening RAM Shortages Through 2028 As It Generates Record Profit
    by BeauHD on 01/10/2026 at 8:00 pm

    Micron says the global RAM and storage shortage will tighten further through 2027 and 2028, with CEO Sanjay Mehrotra saying the company has already sold most of next year's capacity. "In calendar 2027 as well as 2028, we see demand exceeding supply. In fact, we see greater tightness in the industry in 2027 and in 2028 versus 2026. Overall, supply-demand environment is only getting tighter," Mehrotra said. "We do not have line of sight to when supply and demand will return to balance." As a result, the company is forecasting record revenue and an 86.25% gross margin. Tom's Hardware reports: The memory and storage industry is not holding back on increasing production, though, with Micron saying that NAND and DRAM shipments are expected to grow in the low-to-mid 20s percentage range for the next two years. However, it seems that this is not enough to match growing demand, as it expects "the industry to remain supply constrained in both years." Still, it seems that manufacturers are prioritizing HBM demand for AI data centers, with the company expecting shipments of these chips to grow faster than conventional DRAM. Micron and other chip manufacturers are bringing new factories online to increase output, but it's going to take years before they can start producing chips. But even as we're amid an unprecedented multi-year memory chip shortage, Micron also announced record financial guidance. It forecasted a record $61.5 billion FQ1 revenue and a gross margin of 86.25%, implying a gross profit of more than $53 billion. After accounting for an estimated $2.06 billion in operating expenses and a tax rate of around 15.5%, the company said its earnings per share sit at $38.15, plus or minus $1.00, for approximately 1.15 billion shares. Read more of this story at Slashdot.

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