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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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  • NASA Figured Out How To Keep Its 48-Year-Old Voyager 2 Probe Running For Yet Another Year
    by BeauHD on 08/08/2026 at 11:00 am

    NASA has squeezed at least another year of science out of Voyager 2 by cutting power to nonessential systems and switching to lower-power alternatives. Voyager 1 is expected to receive the same power-saving changes in the coming months. Space.com reports: Voyager 2 and its twin launched in 1977, called Voyager 1, rely on a form of nuclear battery known as a radioisotope thermoelectric generator that uses the heat produced by the decay of plutonium. But the supply of plutonium on each probe drops at about four watts a year on each spacecraft. To keep the probe running on this dwindling power supply, engineers recently reduced Voyager 2's power requirements by turning off a few non-science devices and using "lower-power alternatives" that are still effective enough to keep the spacecraft warm while it's so far from the sun, NASA officials said in a statement. "The spacecraft power margins have grown razor thin, requiring the team to conserve energy by shutting off non-essential devices and systems," NASA officials wrote of the mission, which is managed by the agency's Jet Propulsion Laboratory. The drop in power is having a measurable science impact on both spacecraft -- each has turned off two of their science instruments since 2024 alone. While some of these instruments were shut off after the spacecraft finished their historic planetary flybys decades ago, others were turned off due to power requirements. Each spacecraft initially launched with 10 instruments, and Voyager 2 is now down to only three instruments. At first it looked as though Voyager 2 would have to shut down another of these instruments later this year, but luckily, the new power shifts will allow all three to operate "for at least another year," NASA said. Read more of this story at Slashdot.

  • Woman Pulled From Car at Gunpoint By Police After Mistaken Flock Alert - Twice
    by EditorDavid on 08/08/2026 at 7:00 am

    The police surrounded her car Thursday, "drew their guns, and told her to come out with her hands up," reports a local news station. The police thought they were pulling over a murder suspect, but "It turns out it was a mistake by another department with the Flock license plate reader technology." The black woman says she'd wanted to call her mother, "but I'm like, if I make a sudden move, it's going to be over. It's going to end my life." And amazingly, the same thing happened Monday, according to the local news report. "Milwaukee police pulled her over with guns drawn. She says officers never explained why, towed her car, and let her go." She now describes herself as "traumatized," recalling her second detention by police on Thursday. "After they put us in cuffs, they walked us to the car. I'm not knowing what's going on. I'm scared. All you see is people in their cars recording." She now says she's scared to drive her car, and so is her daughter. "Because she doesn't know if the police are going to pull us over and do it again..." "I haven't been to sleep since this happened. Every time I close my eyes, all I can see is guns." She wants an apology, since the local police would only say it wasn't their fault, it was the fault of the Milwaukee police department that failed to remove the alert from Flock's system. "Milwaukee police emphasized this was not a Flock camera issue, it was a data entry mistake," according to the local news report. The woman's response? "Y'all failed. Y'all failed the system. Y'all failed me. Y'all failed everybody." Read more of this story at Slashdot.

  • Trump Administration To Pay German Firm $1.2 Billion To Halt US Wind Projects
    by BeauHD on 08/08/2026 at 3:30 am

    An anonymous reader quotes a report from the BBC: German energy company RWE has said it will abandon its offshore wind projects in the U.S. after reaching a $1.2 billion payout deal with President Donald Trump's Department of the Interior (DoI). RWE said that it will now reinvest the sum into conventional gas projects, including $900 million in a liquefied natural gas (LNG) export terminal project in Louisiana. "After careful consideration, it was determined there is no path forward to permit these projects in the US for the foreseeable future," the company said in a statement. RWE said it has agreed to relinquish its leases off the California and Louisiana coasts as well as in the New York Bight. Overall, the German firm plans to invest approximately $19.6 billion in the U.S. over the next six years "to grow its generation capacity." Interior Secretary Doug Burgum said in a statement posted on X that Americans deserve an energy system built on common sense and not one dependent on "costly subsidies." "We welcome RWE's agreement and voluntary investment in projects that strengthen our nation's energy security," he added. Earlier this year, the DOL reached a deal with TotalEnergies putting an end to the French company's offshore wind projects in the U.S. "Instead, the firm agreed to reroute investment to build a LNG plant in Texas and to develop 'upstream conventional oil' in the Gulf of Mexico," reports the BBC. Another similar deal was signed with Charlotte-based Duke Energy last month to terminate the company's offshore wind lease in the Carolina Long Bay area. Read more of this story at Slashdot.

  • Virginia Governor To Intervene In Dominion-NextEra Merger
    by BeauHD on 07/08/2026 at 11:00 pm

    Longtime Slashdot reader schwit1 shares an opinion piece from the Washington Post, written by Virginia Governor Abigail Spanberger: NextEra Energy, a Florida-based utility company, has filed paperwork to buy Dominion Energy for about $67 billion, creating the largest regulated electric utility in the world. Virginia's State Corporation Commission is the regulatory body tasked with reviewing the application, and the SCC's commissioners will ultimately decide whether to approve, deny or impose new conditions on any potential merger. As a Virginian, I am deeply skeptical about whether selling our primary state-regulated utility to an out-of-state company is good for the commonwealth. I have serious questions about what this deal would mean for us. And as governor, I intend to get answers and be a voice for Virginians in the process. That is why I will be taking the legal step of "intervening" in this proposed merger, which means that as governor, I will formally request to be a party to the case. I know this action is unprecedented by a Virginia governor -- but so, too, is the size of this proposed merger and its potential impact on the commonwealth. Virginians deserve to know that their leaders are laser-focused on ensuring that their needs are part of the SCC review. "If two large corporations stand to benefit financially from this merger, so, too, should the Virginians who pay the bills," said Spanberger. "That is why any potential deal must deliver a more affordable energy bill with sustained, long-term energy cost savings." By formally intervening in the merger review, Spanberger's administration would gain legal standing to participate directly in the case, request detailed information, raise concerns, and advocate for conditions that benefit people in the state. She says the goal is to push for lower long-term energy costs, protect utility jobs, and ensure any new owner continues investing in reliable, affordable and cleaner power. Read more of this story at Slashdot.

  • Water Utilities Group Partners With DEF CON Offshoot For Water Watch Center
    by BeauHD on 07/08/2026 at 10:00 pm

    The National Rural Water Association has partnered with DEF CON Franklin to launch the Water Watch Center, which will provide threat intelligence and cybersecurity services to smaller U.S. water utilities serving fewer than 10,000 people. The initiative comes amid a growing wave of cyberattacks on water systems across multiple states. The Record reports: The program will see five managed detection and response providers work with DEF CON Franklin and the NRWA to offer cyber services for water utilities serving fewer than 10,000 people. There are over 50,000 community water systems across the U.S. and 91% of them serve fewer than 10,000 people. "These leading cyber firms and NRWA are architecting a scalable cyber delivery model that has eluded water industry and national security officials to date," said Jake Braun, the co-founder of DEF CON Franklin and former cyber official in the Biden administration. "Our incredible Franklin volunteers will support the effort to keep costs down for cash-strapped utilities fending off adversaries like the Iranian Red Guard or Chinese Military," Braun said. "To further accelerate the effort, we hand-picked cyber providers who already support water utilities. These folks walk in the door knowing the intricacies of cybersecurity in a water utility environment." The providers include Rapid7, Defendify, Legato Security, L1 Secure and Sentinel Technologies. The companies will share threat information and data on vulnerability patches with the NRWA, which will operate as a hub. Read more of this story at Slashdot.

  • Kalshi and Polymarket Bets On Clinical Trials Criticized As 'Ghastly'
    by BeauHD on 07/08/2026 at 9:00 pm

    An anonymous reader quotes a report from NPR: Billions of dollars are traded every week on the lightly regulated prediction market sites, where users bet on everything from movie reviews to elections to conflicts in the Middle East. Clinical trials are just the latest area where the industry's rapid growth is raising ethical questions. Kalshi claims such bets will provide a new source of information about which drugs will get approved, and what clinical trials will show promising results, which the company says can help investors decide what new drugs to fund. "If you want to ban profiting from the failure of clinical trials, you would start with the stock market, where the financial incentive for this type of profit is orders of magnitude larger," said Kalshi spokesman Jack Such, pointing to stock market short sellers who have profited from clinical trial failures. "While Kalshi and the stock market are the same in this regard, they do differ in one important way: the stock market doesn't give any valuable information to researchers," Such said. Drug trial researchers, though, are far from convinced. David Tsai, who runs clinical trials at a biotech company in the San Francisco Bay Area, started an online petition pushing for such betting to be banned, making the case that betting on drug trials "threatens the very foundation of trust and integrity in biotechnology." Tsai is concerned that the prospect of betting provides those involved with a clinical trial a reason to tamper with the results for a prediction market payout. "If we were running a trial for an oncology drug that requires an infusion, a pharmacist who had placed a bet saying that it's gonna work well, or doesn't work well, could obviously adjust the infusion rate, could adjust the source temperature of the drug," he said. "They could change any number of variables that could obviously have a direct impact [on] how the trial and the data and the patient safety would come out." Another skeptic is Nicholas Zaorsky, a professor of radiation oncology at the Mayo Clinic in Jacksonville, Fla., who has helped run clinical trials and agrees that prediction markets can interfere with the advancement of life-saving drugs. "Prediction markets can be valuable in some settings because they aggregate information, but clinical trials are fundamentally different: investigators, coordinators, and sometimes even participants can directly influence aspects of the outcomes being wagered on," Zaorsky said. "That creates financial incentives that risk undermining trial integrity." Bettors should not be rooting for an experimental medicine to fail just to earn a buck, says Joshua Pederson, the father of a 12-year-old cancer patient enrolled in a clinical trial. "It's a dark idea," he said. "It's quite ghastly." Kalshi, for its part, argues that its prediction markets could help patients track promising medical breakthroughs and clinical trials, enlisting experts including 23andMe founder Anne Wojcicki to make the case. "Most patients don't know about the choices available in clinical trials or which programs are most promising. The opportunity to have an open, transparent dataset about trial probabilities is extremely promising and empowering for people," a white paper sponsored by Kalshi stated. Read more of this story at Slashdot.

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