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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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  • Military GPS Jamming is Interfering with the Navigation Systems of Commercial Ships
    by EditorDavid on 07/03/2026 at 6:34 pm

    "Within 24 hours of the first US-Israeli strikes on Iran, ships in the region's waters found their navigation systems had gone haywire," reports CNN, "erroneously indicating that the vessels were at airports, a nuclear power plant and on Iranian land. "The location confusion was a result of widespread jamming and spoofing of signals from global positioning satellite systems." Used by all sides in conflict zones to disrupt the paths of drones and missiles, the process involves militaries and affiliated groups intentionally broadcasting high-intensity radio signals in the same frequency bands used by navigation tools. Jamming results in the disruption of a vehicle's satellite-based positioning while spoofing leads to navigation systems reporting a false location. Though commercial vessels are not the target, the electronic interference disrupted the navigation systems of more than 1,100 commercial ships in UAE, Qatari, Omani and Iranian waters on February 28, according to a report from Windward, a shipping intelligence firm. Jamming and spoofing also slowed marine traffic moving through the Strait of Hormuz, a congested shipping lane that handles roughly 20% of the world's oil and gas exports and where precise navigation is essential, Windward's data showed.... Daily incidents have more than doubled, rising from 350 when the conflict began to 672 by March 2, the firm reported. As use of this warfare tactic grows, experts worry the impacts could reach far beyond battlespaces.... In June 2025, electronic interference with navigation systems was thought to be a factor in the collision between two oil tankers, Adalynn and Front Eagle, off the coast of the UAE... The number of global positioning system signal loss events affecting aircraft increased by 220% between 2021 and 2024, according to data from the International Air Transport Association. Last year, IATA said that the aviation industry must act to stay ahead of the threat. Cockpits are seeing their navigation displays "literally drift away from reality," said a commercial pilot, who didn't want to be identified because he was not permitted to speak publicly. He said that he and his colleagues have experienced map shifts, where the aircraft location appears to move up to 1 mile away from the actual flight path, false altitude information that leads to phantom "pull up" commands, and systems suggesting an aircraft was on a taxiway, a path that connects runways with various airport facilities, when taking off. These incidents force pilots to rely on manual actions that increase workload, often during the most exhausting points of long-haul flights, he said. "Alternative navigational tools that don't rely on GPS, but instead harness quantum technology, are also in development," the article points out, "but remain a long way off operational use." Read more of this story at Slashdot.

  • Seagate Just Unleashed 44TB Hard Drives
    by EditorDavid on 07/03/2026 at 5:34 pm

    "Seagate says it is now shipping its Mozaic 4+ HAMR-based hard drives at up to 44TB per drive," writes Slashdot reader BrianFagioli, "with production deployments already underway at two hyperscale cloud providers. "The company claims the platform is the only heat-assisted magnetic recording [HAMR] implementation currently operating at scale, and it is targeting a path from today's 4+TB per disk toward 10TB per disk, eventually enabling 100TB-class drives." In a one-exabyte deployment, Seagate estimates Mozaic could improve infrastructure efficiency by roughly 47% compared to standard 30TB drives, cutting both footprint and energy consumption... HAMR uses a tiny laser to heat the disk surface during writes, allowing higher recording density without sacrificing stability. With most major cloud storage providers reportedly qualified on the Mozaic platform, Seagate is positioning spinning disks, not flash, as the long-term answer for cost-effective AI-scale data growth. Read more of this story at Slashdot.

  • First Solar Car Rolls Off Validation Assembly Line At Aptera
    by EditorDavid on 07/03/2026 at 4:34 pm

    "Reservation holders, it's finally time to get ready," writes long-time Slashdot reader AirHog. The EV news site Electrek reports: Aptera Motors, "the little startup that could," announced another important milestone... completing the first example of its flagship solar EV on its validation assembly line in Southern California... While the validation line at its headquarters remains a low-volume assembly process, its successful operation represents the startup's transition from hand-built validation SEVs to a more structured assembly line process that will be fine-tuned for mass production... With low-volume assembly now being validated, Aptera is starting to publicly utter encouraging terms like "EPA certification" and, better yet, that holy grail of "initial customer deliveries." Before then, however, the Aptera Solar EVs built on this low-volume validation line will be used for testing programs such as thermal validation, brake performance, and "some destructive testing." Aptera shared that its assembly and integration team has grown to become the largest at the startup, "reflecting the beginning of its transition from engineering development to testing and production execution"... As of March 2026, Aptera says it has over 50,000 reservations totaling over $2 billion in sales if all were to solidify following the launch of a deliverable vehicle. Clean Technica notes the vehicles' "generous cargo space that comes out to 60% more storage than a Honda Accord and 20% more storage than a Prius, according to the company." "Built with recyclable materials, this eco-friendly vehicle features a lightweight carbon fiber structure and no-welding assembly for maximum cost and production efficiency," Aptera adds. The emphasis on lightweighting supports the goal of engineering a car that can travel on the electricity provided by its onboard solar panels. The company currently advertises that the vehicle can travel 40 miles on solar power alone, with the battery providing extra juice as needed. Ideally, the car can keep recharging itself with sunlight, further elongating the time between charging sessions... [Its range is up to 1,000 miles with plug-in charging.] The new autocycle could also appeal to drivers who enjoy the challenge of hypermiling, which involves deploying a suite of driving techniques to minimize fuel consumption. Hypermiling can apply to gas-powered cars, but the magic really kicks in with the regenerative braking capability of EVs. Aptera's onboard solar panels add another dimension to the fun. Read more of this story at Slashdot.

  • Prediction Market 'Kalshi' Sued for Not Paying $54 Million for Bets on Khamenei's Death
    by EditorDavid on 07/03/2026 at 3:34 pm

    An anonymous reader shared this report from the Independent: A popular predictions market app will not pay out the $54 million some of its users believed they were owed after correctly forecasting the death of Ayatollah Ali Khamenei, according to a report. Kalshi, which allows players to gamble on real-world events, offered customers favorable odds on Khamenei, 86, being "out as Supreme Leader" in response to the announcement of joint U.S.-Israeli airstrikes on Tehran in the early hours of Saturday morning. The company promoted the trade on its homepage and app and tweeted [last] Saturday: "BREAKING: The odds Ali Khamenei is out as Supreme Leader have surged to 68 percent." It continued: "Reminder: Kalshi does not offer markets that settle on death. If Ali Khamenei dies, the market will resolve based on the last traded price prior to confirmed reporting of death." Khamenei was later confirmed dead in the airstrikes and the company clarified in a follow-up post: "Please note: A prior version of this clarification was grammatically ambiguous. As a customer service measure, Kalshi will reimburse lost value due to trades made between these clarifications...." While the company has offered to reimburse any bets, fees or losses from the trade placed prior to its clarification message, it has nevertheless attracted a firestorm of complaints on social media. A Kalshi spokesperson told Reuters they'd reimbursed "net losses" out of pocket "to the tune of millions of dollars". But a class action lawsuit was filed Thursday saying Kalshi had failed to pay $54 million: Kalshi did not invoke a "death carveout" provision until after the Iranian leader was killed to avoid paying customers in Kalshi's "Khamenei Market" what they were owed, the lawsuit said... The language specifying that Khamenei's departure could be due to any cause, including death, was "clear, unambiguous and binary," the lawsuit said, describing Kalshi's actions as "deceptive" and "predatory." "In a notice filed Monday, the company proposed standardizing the terms of all its markets that implicitly depend on a person surviving..." reports Business Insider. "The update comes after Kalshi paid $2.2 million to resolve complaints from users who were confused by the way it divided the $55 million wagered on Iran's Supreme Leader Ali Khamenei's ouster after his targeted killing by Israel and the US." Their article cites a DePaul University law professor who says "There's now sort of this nascent, but bipartisan movement against prediction markets. I think Kalshi's feeling the heat." For example, U.S. Senator Chris Murphy told the Washington Post, "People shouldn't be rooting for people to die because they placed a bet." Read more of this story at Slashdot.

  • Indonesia To Ban Social Media For Children Under 16
    by BeauHD on 07/03/2026 at 1:00 pm

    Indonesia will ban children under 16 from having accounts on major social media platforms as part of a government push to protect minors from harmful content, addiction, and online threats. The rule will roll out starting March 28 and makes Indonesia the first country in Southeast Asia to impose such a restriction. The Guardian reports: Meutya Hafid said in a statement to media said that she signed a government regulation that will mean children under the age of 16 can no longer have accounts on high-risk digital platforms, including YouTube, TikTok, Facebook, Instagram, Threads, X, Roblox and Bigo Live, a popular livestreaming site. With a population of about 285 million, the fourth-highest in the world, the south-east Asian nation represents a significant market for social networks. The implementation will start gradually from 28 March, until all platforms fulfill their compliance obligations. "The basis is clear. Our children face increasingly real threats. From exposure to pornography, cyberbullying, online fraud, and most importantly addiction. The government is here so that parents no longer have to fight alone against the giant of algorithms," Hafid said. She added that the government is taking this step as the best effort in the midst of a digital emergency to reclaim sovereignty over children's futures. "We realize that the implementation of this regulation may cause some discomfort at first. Children may complain and parents may be confused about how to respond to their children's complaints," Hafid said. Read more of this story at Slashdot.

  • China Releases First Homegrown Quantum Computing OS
    by BeauHD on 07/03/2026 at 10:00 am

    The Global Times reports: China's first domestically developed quantum computer operating system, Origin Pilot, has been made available for online download, the Global Times learned from the Anhui Quantum Computing Engineering Research Center on Wednesday. A Chinese scientist said while several quantum computing operating system efforts are underway worldwide, this is the first developed in China where it is seen as part of China's broad effort to achieve technology independence and to achieve technology advance in quantum computing. The center said the release marks the world's first open-source quantum computer operating system available for public download, which is expected to lower development barriers and support the growth of China's quantum computing ecosystem. Developed by Hefei-based Origin Quantum Computing Technology Co, the company behind China's third-generation superconducting quantum computer, Origin Wukong, Origin Pilot was first launched in 2021 and has gone through multiple rounds of iteration and upgrade. The developer describes it as an integrated quantum-classical-intelligent computing operating system compatible with major hardware approaches, including superconducting qubits, trapped ions and neutral atoms. It is now deployed on the company's Origin Wukong series and is available to external users, the company said. Guo Guoping, chief scientist of Origin Quantum and director at the Anhui Quantum Computing Engineering Research Center, told the Global Times that a quantum operating system is the "soft heart" of the quantum computing ecosystem. He said the decision to make Origin Pilot available globally marks a shift in China's quantum computing industry from closed-door tech innovation to broader open-source ecosystem development. Dou Menghan, head of the research team, said: "Users can quickly integrate with quantum chips of multiple physical types and, using autonomous programming frameworks such as QPanda, execute quantum computing jobs across different physical quantum chips to support both research and commercialization needs." Read more of this story at Slashdot.

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