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A Nice Little Cryptography Primer

By itss | 28/06/2021
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Pun Intended.

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  • Hollywood Tries To Take Pirate Sites Down Globally Through India Court
    by BeauHD on 24/01/2026 at 1:00 pm

    An anonymous reader quotes a report from TorrentFreak: The High Court in New Delhi, India, has granted another pirate site blocking order in favor of American movie industry giants, including Apple, Warner., Netflix, Disney and Crunchyroll. The injunction targets notorious pirate sites, requesting blockades at Indian ISPs. More crucially, however, globally operating domain registrars, including U.S. companies, are also compelled to take action. However, despite earlier cooperation, most don't seem eager to comply. [...] As reported by Verdictum a few days ago, the High Court in New Delhi issued a new blocking injunction on December 18, targeting more than 150 pirate site domains, including yflix.to, animesuge.bz, bs.to, and many others. The complaint (PDF) is filed by Warner Bros., Apple, Crunchyroll, Disney, and Netflix, which are all connected to the MPA's anti-piracy arm, ACE. The referenced works include some of the most pirated titles, such as Stranger Things, Squid Game, and Silo. In addition to targeting Indian ISPs, the order also lists various domain name registries and related organizations as defendants. This includes American registrars such as Namecheap and GoDaddy, but also the government of the Kingdom of Tonga, which is linked to .to domains. By requiring domain name registrars to take action, the Indian court orders have a global impact. In addition to suspending the domain names within three days days, the domain name registrars are given four weeks to disclose the relevant subscriber information connected to these domains. "[The registrars] shall lock and suspend Defendant Nos. 1 to 47 websites within 72 hours of being communicated with a copy of this Order and shall file all the Basic Subscriber Information, including the name, address, contact information, email addresses, bank details, IP logs, and any other relevant information [...] within four weeks of being communicated with a copy of this Order," the High Court wrote. While the "Dynamic+" injunction is designed to be a global kill switch, its effectiveness depends entirely on the cooperation of the domain name registrars. Since most of these are based outside of India, their compliance is not guaranteed. Read more of this story at Slashdot.

  • Smartwatches Help Detect Abnormal Heart Rhythms 4x More Often In Clinical Trial
    by BeauHD on 24/01/2026 at 10:00 am

    A clinical trial found that seniors at high stroke risk who wore an Apple Watch were four times more likely to have hidden heart rhythm disorders detected than those receiving standard care. The researchers noted that over half the time, these smartwatch wearers with heart rhythm problems hadn't shown any symptoms prior to diagnosis. From U.S. News & World Report: Later editions of Apple Watches are equipped with two functions that can help monitor heart health -- photoplethysmography (PPG), which tracks heart rate, and a single-lead electrocardiogram (ECG) that monitors heart rhythm. "Using smartwatches with PPG and ECG functions aids doctors in diagnosing individuals unaware of their arrhythmia, thereby expediting the diagnostic process," said senior researcher Dr. Michiel Winter, a cardiologist at Amsterdam University Medical Center in The Netherlands. "Our findings suggest a potential reduction in the risk of stroke, benefiting both patients and the health care system by reducing costs," Winter said in a news release. [...] Smartwatches are much easier than other wearable devices for detecting irregular heart rhythms [...]. These other means require people to wear sticky leads, carry around bulky monitors or even receive short-term implants. Lead researcher Nicole van Steijn, a doctoral candidate at Amsterdam UMC, noted that wearables that track both the pulse and electrical activity have been around for a while. "However, how well this technology works for the screening of patients at elevated risk for atrial fibrillation had not yet been investigated in a real-world setting,"she said in a news release. The findings have been published in the Journal of the American College of Cardiology. Read more of this story at Slashdot.

  • Study Shows How Earthquake Monitors Can Track Space Junk Through Sonic Booms
    by BeauHD on 24/01/2026 at 7:00 am

    A new study shows that earthquake monitoring networks can track falling space debris by detecting the sonic booms produced during atmospheric reentry, sometimes more accurately than radar. The Associated Press reports: Scientists reported Thursday that seismic readings from sonic booms that were generated when a discarded module from a Chinese crew capsule reentered over Southern California in 2024 allowed them to place the object's path nearly 20 miles (30 kilometers) farther south than radar had predicted from orbit. Using this method to track uncontrolled objects plummeting at supersonic speeds, they said, could help recovery teams reach any surviving pieces more quickly -- crucial if the debris is dangerous. "The problem at the moment is we can track stuff very well in space," said Johns Hopkins University's Benjamin Fernando, the lead researcher. "But once it gets to the point that it's actually breaking up in the atmosphere, it becomes very difficult to track." His team's findings, published in the journal Science, focus on just one debris event. But the researchers already have used publicly available data from seismic networks to track a few dozen other reentries, including debris from three failed SpaceX Starship test flights in Texas. [...] Fernando is looking to eventually publish a catalog of seismically tracked, entering space objects, while improving future calculations by factoring in the wind's effect on falling debris. In a companion article in Science, Los Alamos National Laboratory's Chris Carr, who was not involved in the study, said further research is needed to reduce the time between an object's final plunge and the determination of its course. For now, Carr said this new method "unlocks the rapid identification of debris fall-out zones, which is key information as Earth's orbit is anticipated to become increasingly crowded with satellites, leading to a greater influx of space debris." Read more of this story at Slashdot.

  • New Filtration Technology Could Be Gamechanger In Removal of PFAS 'Forever Chemicals'
    by BeauHD on 24/01/2026 at 3:30 am

    Bruce66423 shares a report from the Guardian: New filtration technology developed by Rice University may absorb some Pfas "forever chemicals" at 100 times the rate than previously possible, which could dramatically improve pollution control and speed remediations. Researchers also say they have also found a way to destroy Pfas, though both technologies face a steep challenge in being deployed on an industrial scale. A new peer-reviewed paper details a layered double hydroxide (LDH) material made from copper and aluminum that absorbs long-chain Pfas up to 100 times faster than commonly used filtration systems. [...] [Michael Wong, director of Rice's Water Institute, a Pfas research center] said Rice's non-thermal process works by soaking up and concentrating Pfas at high levels, which makes it possible to destroy them without high temperatures. The LDH material Rice developed is a variation of similar materials previously used, but researchers replaced some aluminum atoms with copper atoms. The LDH material is positively charged and the long-chain Pfas are negatively charged, which causes the material to attract and absorb the chemicals, Wong said. [...] Pfas are virtually indestructible because their carbon atoms are bonded with fluoride, but Rice found that the bonds could be broken if the chemicals in the material were heated to 400-500C -- a relatively low temperature. The fluoride gets trapped in the LDH material and is bonded to calcium. The leftover calcium-fluoride material is safe and can be disposed of in a landfill, Wong said. The process works with some long-chain Pfas that are among the most common water pollutants, and it also absorbed some smaller Pfas that are commonplace. Wong said he is confident the material can be used to absorb a broad array of Pfas, especially if they are negatively charged. Most new Pfas elimination systems fail to work at an industrial scale. Wong said the new material has an advantage because its absorption rate is so strong, it can be used repeatedly and it is in a "drop in material," meaning it can be used with existing filtration infrastructure. That eliminates one of the major cost barriers. Read more of this story at Slashdot.

  • California Becomes First State To Join WHO Disease Network After US Exit
    by BeauHD on 24/01/2026 at 2:02 am

    California became the first U.S. state to join the World Health Organization's Global Outbreak Alert and Response Network (GOARN), one day after the U.S. formally exited the WHO. The Hill reports: This announcement comes just one day after the U.S.'s withdrawal from the WHO became official after nearly 80 years of membership, having been a founding member of the organization. "The Trump administration's withdrawal from WHO is a reckless decision that will hurt all Californians and Americans," [California Governor Gavin Newsom] said in a statement. "California will not bear witness to the chaos this decision will bring. We will continue to foster partnerships across the globe and remain at the forefront of public health preparedness, including through our membership as the only state in WHO's Global Outbreak Alert & Response Network." Read more of this story at Slashdot.

  • Campaigner Launches $2 Billion Legal Action In UK Against Apple Over Wallet's 'Hidden Fees'
    by BeauHD on 24/01/2026 at 1:25 am

    Longtime Slashdot reader AmiMoJo shares a report from the Guardian: The financial campaigner James Daley has launched a 1.5 billion pound (approximately $1.5 billion) class action lawsuit against Apple over its mobile phone wallet, claiming the U.S. tech company blocked competition and charged hidden fees that ultimately harmed 50 million UK consumers. The lawsuit takes aim at Apple Pay, which they say has been the only contactless payment service available for iPhone users in Britain over the past decade. Daley, who is the founder of the advocacy group Fairer Finance, claims this situation amounted to anti-competitive behavior and allowed Apple to charge hidden fees, ultimately pushing up costs for banks that passed charges on to consumers, regardless of whether they owned an iPhone. It is the first UK legal challenge to the company's conduct in relation to Apple Pay, and takes place months after regulators like the Competition and Markets Authority and the Payments Systems Regulator began scrutinising the tech industry's digital wallet services. The case has been filed with the Competition Appeal Tribunal, which will now decide whether the class action case can move forward. [...] Daley's lawsuit alleges that Apple refused to give other app developers and outside businesses access to the contactless payment technology on its iPhones, which meant it could charge banks and card issuers fees on Apple Pay transactions that his lawyers say "are not in line with industry practice." The lawsuit notes that similar fees are not charged on equivalent payments on Android devices, which are built by Google. It says that the additional costs were borne by UK consumers, having been passed on through charges on a range of personal banking products ranging from current accounts, credit cards, to savings and mortgages. The lawsuit says that about 98% of consumers are exposed to banks that listed cards on Apple Pay, meaning the vast majority of the UK population may have been affected. Read more of this story at Slashdot.

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