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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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  • OpenAI Claims It Solved an 80-Year-Old Math Problem
    by BeauHD on 21/05/2026 at 3:00 pm

    An anonymous reader quotes a report from TechCrunch: OpenAI claims its new reasoning model has produced an original mathematical proof disproving a famous unsolved conjecture in geometry, which was first posed by Paul Erdos in 1946. If this sounds familiar to you, it's because this isn't the first time OpenAI has made such a bold claim. Seven months ago, the AI giant's former VP Kevin Weil posted on X: "GPT-5 found solutions to 10 (!) previously unsolved Erds problems and made progress on 11 others." It turns out, GPT-5 didn't actually solve those problems; it just found solutions that already existed in the literature. Taunts from rivals like Yann LeCun and Google DeepMind CEO Demis Hassabis followed, and Weil promptly took down his premature post. Today, at least, it seems OpenAI didn't make the same mistake twice. Alongside the announcement, the company published companion remarks (PDF) in support of the disproof from mathematicians like Noga Alon, Melanie Wood, and Thomas Bloom, who maintains the Erdos Problems website, and previously called Weil's post "a dramatic misrepresentation." [...] The proof, per OpenAI, came from a new general-purpose reasoning model, not a system specifically designed to solve math problems or even this problem in particular. OpenAI says this is significant because it means AI systems are now more capable of holding together long, difficult chains of reasoning and connecting ideas across fields in ways researchers may not have previously explored. That has implications for biology, physics, engineering, and medicine. Read more of this story at Slashdot.

  • SpaceX Reveals Its Finances For the First Time
    by BeauHD on 21/05/2026 at 11:00 am

    SpaceX has revealed its financials for the first time as it prepares for a potentially massive IPO. The New York Times reports: SpaceX's revenue soared to $18.7 billion in 2025, up 33 percent from a year earlier, the company disclosed in a filing required of firms that are seeking to go public. In the first three months of this year, revenue rose to $4.7 billion from $4.1 billion in the same period a year ago. But the company lost more than $4.9 billion last year, compared with a $791 million profit in 2024, as capital expenditures nearly doubled to $20.7 billion from heavy spending on artificial intelligence development. In the first three months of this year, SpaceX lost almost as much money as all of 2025, recording a $4.3 billion loss. Read more of this story at Slashdot.

  • NASA Expects Chinese Crewed Mission Around the Moon In 2027
    by BeauHD on 21/05/2026 at 7:00 am

    NASA Administrator Jared Isaacman says he expects China to fly taikonauts around the moon in 2027, "ratcheting up perceptions of a space race between China and the United States," reports SpaceNews. He is using that prospect to argue for a revamped Artemis strategy and an accelerated path toward a U.S. lunar return. From the report: "The next time the world tunes in to watch astronauts fly around the moon, which will likely be sometime in 2027, they will be taikonauts, and America will no longer be the exclusive power to send humans into the lunar environment," he said. While Isaacman has frequently discussed a race with China to be the next to land humans on the moon, this was one of the first times he predicted a 2027 Chinese crewed circumlunar mission. He repeated the comments later in the day at an industry reception. China has not publicly announced plans for such a mission, which, as Isaacman described it, would likely be similar to NASA's Artemis 2 mission in April. There have been rumors of a mission along those lines, though, and an expectation of a roadmap of missions leading to a Chinese crewed landing by the end of the decade. So far, all the crewed missions to fly around, orbit or land on the moon have been flown by NASA: nine Apollo missions from 1968 to 1972 and Artemis 2. All the astronauts on those missions have been Americans except for Canadian Space Agency astronaut Jeremy Hansen on Artemis 2. Isaacman has used the threat that China could land astronauts on the moon before NASA returns there as a rationale for revamping the Artemis lunar exploration program. In February, he announced that Artemis 3, which was to be a lunar landing attempt in 2028, will instead be a test flight in low Earth orbit in 2027, followed by a landing on Artemis 4 in 2028. In March, he changed other elements of Artemis at the agency's Ignition event, including effectively canceling the lunar Gateway to focus resources instead on a lunar base, while calling for a much higher cadence of robotic lander missions. Read more of this story at Slashdot.

  • Colossal Biosciences Is Growing Chickens In a 3D-Printed Artificial Eggshell
    by BeauHD on 21/05/2026 at 3:30 am

    Colossal Biosciences says it has grown chickens inside 3D-printed artificial eggshells. "The company says the egg technology could help conserve at-risk bird species," reports MIT Technology. "It could also play a role in a project to re-create the extinct giant moa, a flightless 12-foot-tall bird that once lived in New Zealand and laid four-liter eggs, larger than those of any living bird." From the report: The biotech company today claimed it has developed a "fully artificial egg" as part of its effort to resurrect extinct avian species, including birds like the dodo and the giant moa. But "artificial eggshell" would probably be a better description for the invention. It's an oval-shaped printed lattice, coated inside with a special silicone-based membrane that lets in oxygen, just as a real eggshell does. To generate birds, Colossal took recently laid chicken eggs and carefully poured their contents into the artificial shells, where they continued growing. A window on top lets researchers peek inside. "To see them all moving around in their artificial eggs was absolutely mind blowing," says Andrew Pask, the company's chief biology officer. "You really feel you can grow life outside of the womb." [...] The work on the artificial eggshell was carried out in Dallas by Colossal's exogenous development team, or Exo Dev. That group is also trying to develop artificial wombs for mammals, starting with marsupials. "We're looking at every single facet of what's happening during a mammalian pregnancy to unpack exactly how we then go about recapitulating that," says Pask. For that team, an artificial eggshell is a relatively quick and easy technical win. That's because chickens are already an example of ex utero development. After an egg is laid, a small embryo sitting on top of the yolk starts growing, drawing nutrients from the yolk, the white, and even the shell, which provides calcium. (Colossal says it has to add ground-up calcium to the artificial eggs.) In order to create a moa, Colossal will have to genetically alter another type of bird, changing potentially thousands of DNA letters. But so far, chickens are the only bird species that can be genetically engineered. And that's via a tricky process of editing stem cells that produce egg and sperm. Scientists have to add or delete DNA letters from these cells and then inject them back into an egg. The resulting bird will carry the genetic changes in its gonads -- and then be able to pass them on. Pask says Colossal's idea is that it could modify avian stem cells enough to produce moa-like sperm or eggs. But then you might have the odd situation of a chicken laying an egg with a moa embryo inside it. "You would have chickens making moa egg and moa sperm. But it's still a chicken egg," he says. Read more of this story at Slashdot.

  • Intuit To Lay Off Over 3,000 Employees To Refocus On AI
    by BeauHD on 20/05/2026 at 11:00 pm

    Intuit is reportedly cutting about 3,000 jobs, or 17% of its workforce, as it restructures around AI and simplifies its corporate organization. TechCrunch reports: The layoffs come during a bad year for the tech workforce. The tech industry has already cut more than 100,000 jobs this year, per Statista, and is on track to outpace both 2024 and 2025 if the layoff trend continues. Companies such as Amazon, Block, Cisco, Cloudflare, Meta, Microsoft, and Oracle have let go of thousands of employees each, all of them citing a need to refocus expenditures around AI projects as a reason to cut jobs and restructure their organizations. [...] Intuit, however, hasn't been perceived as a beneficiary of the AI boom, with its shares consistently underperforming in the broader S&P 500 over the past 12 months. The company has been caught up in the broader current of worries that traditional software-as-a-service firms will not be able to keep up or compete, as new and upcoming AI products and services threaten to change how software is developed and how it is used. In its fiscal second quarter ended January, Intuit reported revenue of $4.65 billion, a 17% increase, and net profit of $693 million, a 48% improvement compared to a year earlier. The company expects revenue to increase by about 10% in the third quarter, for which it will report results later today. Read more of this story at Slashdot.

  • Google Publishes Exploit Code Threatening Millions of Chromium Users
    by BeauHD on 20/05/2026 at 10:00 pm

    An anonymous reader quotes a report from Ars Technica: Google on Wednesday published exploit code for an unfixed vulnerability in its Chromium browser codebase that threatens millions of people using Chrome, Microsoft Edge, and virtually all other Chromium-based browsers. The proof-of-concept code exploits the Browser Fetch programming interface, a standard that allows long videos and other large files to be downloaded in the background. An attacker can use the exploit to create a connection for monitoring some aspects of a user's browser usage and as a proxy for viewing sites and launching denial-of-service attacks. Depending on the browser, the connections either reopen or remain open even after it or the device running it has rebooted. The unfixed vulnerability can be exploited by any website a user visits. In effect, a compromise amounts to a limited backdoor that makes a device part of a limited botnet. The capabilities are limited to the same things a browser can do, such as visit malicious sites, provide anonymous proxy browsing by others, enable proxied DDoS attacks, and monitor user activity. Nonetheless, the exploit could allow an attacker to wrangle thousands, possibly millions, of devices into a network. Once a separate vulnerability becomes available, the attacker could use it to then compromise all those devices. "The dangerous part here is that you can just have a lot of different browsers together that you can in the future run something on that you figure out," said Lyra Rebane, the independent researcher who discovered the vulnerability and privately reported it to Google in late 2022 in an interview. He said using the exploit code Google prematurely published would be "pretty easy," although scaling it to wrangle large numbers of devices into a single network would require more work. In the thread of Rebane's disclosure to Google, two developers said in separate responses that it was a "serious vulnerability." Its severity was rated S1, the second-highest classification. Since its reporting 29 months ago, the vulnerability remained unknown except to Chromium developers. Then on Wednesday morning, it was published to the Chromium bug tracker. Rebane initially assumed the vulnerability was finally fixed. Shortly thereafter, he learned that, in fact, it remained unpatched. While Google removed the post, it remains available on archival sites, along with the exploit code. Google representatives didn't immediately respond to an email asking how and why it published the vulnerability and if or when a fix would become available. The exploit works by abusing Chromium's Browser Fetch API to open a service worker that remains persistently active. A malicious website can trigger it through JavaScript, creating a connection that can be used "for monitoring some aspects of a user's browser usage and as a proxy for viewing sites and launching denial-of-service attacks," reports Ars. Depending on the browser, those connections "either reopen or remain open even after it or the device running it has rebooted," effectively turning the device into part of a "limited botnet." Read more of this story at Slashdot.

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