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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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  • Wix Is the Latest To Cut 20% of Jobs While Citing AI
    by BeauHD on 29/05/2026 at 8:00 pm

    Wix is laying off roughly 20% of its workforce, about 1,000 employees, as CEO Avishai Abrahami cites both the rapid evolution of AI and currency pressure from a stronger Israeli shekel against the dollar. The web developer joins a growing list of tech companies making similar cuts, including Amazon, Block, Cisco, Cloudflare, Meta, Microsoft, Oracle and Intuit. Fast Company reports: "We have witnessed the most significant shift in how companies are built since the invention of modern programming languages in the 1970s," [wrote Abrahami]. "This is not just about adopting new tools -- it is about rewiring how companies are built, how they think, how they manage, and how they operate. Companies that embrace this change will not only build faster; they will build things the previous generation literally could not have imagined." Abrahami also cited the poor exchange rate between the Israeli shekel and the U.S. dollar. The Israeli currency has significantly strengthened in the past few quarters against a weakening dollar, and the shekel is up nearly 30% against the greenback over the last year. "As the majority of our teams are Israel-based, a very meaningful portion of our costs are shekel-denominated, while our revenue is largely dollar-denominated," Abrahami explained on X. "This creates a structural pressure on our ability to operate at our current scale. It is a reality that directly shapes what is sustainable for our company." Read more of this story at Slashdot.

  • Blue Origin Rocket Exploded Thursday Night During Hot-Fire Test
    by EditorDavid on 29/05/2026 at 6:28 pm

    Spaceflight Now shared their video of the explosion, which the Orlando Sentinel describes as showing Blue Origin's rocket "become engulfed in flames. The fireball expands out and covers the entire launch pad as the fuselage of the rocket can be seen crumbling into the flames." Blue Origin founder Jeff Bezos said on X.com "It's too early to know the root cause but we're already working to find it. Very rough day, but we'll rebuild whatever needs rebuilding and get back to flying. It's worth it." (SpaceX founder Elon Musk posted "Sorry to see this, I hope you recover quickly.") It's unclear how this will impact future launches. "The rocket was destroyed," reports CBS News, "and as the smoke cleared, there was no sign of the erector-gantry used to move the New Glenn from its hangar to the pad and to raise it from horizontal to vertical. Likewise, one of two tall lightning towers was no longer visible." It was the first such on-pad explosion at the Cape since a SpaceX Falcon 9 rocket blew up on nearby pad 40 on Sept. 1, 2016... Blue Origin only has one New Glenn pad, the one that was damaged in the Thursday test. The New Glenn, which has launched three times, is a heavy lift rocket designed to compete head-to-head with SpaceX Falcon 9 and Falcon Heavy rockets. During New Glenn's most recent flight in April, an upper stage malfunction prevented a commercial internet satellite from reaching its planned orbit... The New Glenn destroyed Thursday was to send 48 Leo internet satellites owned by Amazon into space [which were not on board for the hot-fire test] Blue Origin posted on X.com that "Debris from our recent hotfire anomaly may wash ashore in the coming days/weeks. If you encounter any debris, do not touch or approach it for your safety." "Spaceflight is unforgiving, and developing new heavy-lift launch capability is extraordinarily difficult..." NASA Administrator Jared Isaacman posted on X.com. "âWe will provide information on any impacts to the Artemis and Moon Base programs as it becomes available." Thanks to long-time Slashdot reader symbolset for sharing the news. Read more of this story at Slashdot.

  • Supreme Court Lets Vermont's Meta Lawsuit Proceed, Opening Door To 50-State Legal Wave
    by BeauHD on 29/05/2026 at 3:00 pm

    An anonymous reader quotes a report from Fortune: The Supreme Court on Tuesday rejected a push to avoid a lawsuit alleging that Facebook and Instagram harmed young users, a decision that comes as social media companies increasingly face legal scrutiny. Parent company Meta appealed after Vermont's highest court allowed a suit filed by its attorney general in 2023 to move forward. The company is facing similar lawsuits from states across the country, accusing it of knowingly designing addictive features. Meta had argued that it can't be sued in Vermont court because neither the company nor the app design has specific ties to the state. Vermont countered that the sites' large number of teen users gives its courts jurisdiction. The Supreme Court declined to hear the appeal in a brief, unexplained order, as is typical. The procedural decision comes after court losses for Meta and YouTube in social media addiction lawsuits in California and New Mexico. [...] Meta, for its part, has said that it has already introduced dozens of tools to support teens and their families and suggested it would have worked with the states on standards for youth social media use. Vermont Attorney General Charity Clark applauded the decision, saying it affirms "that companies that choose to do business in Vermont, like Meta, can be held accountable when they harm kids." Read more of this story at Slashdot.

  • FBI Arrests CIA Official With $40 Million In Gold Bars In His Home
    by BeauHD on 29/05/2026 at 11:00 am

    A senior CIA official, David Rush, was arrested after investigators found more than $40 million in gold bars and about $2 million in cash at his Virginia home. According to the New York Times, "The only charge lodged against David Rush is that he inflated his academic credentials and obtained military leave pay worth tens of thousands of dollars." From the report: The court papers describe Mr. Rush as a "former senior executive service-level employee at a United States government agency." People familiar with the investigation say he until very recently held a senior position at the C.I.A. In a joint statement, the C.I.A. and F.B.I. said the arrest occurred on May 19, after the agency alerted the bureau. "After a C.I.A. internal investigation identified potential violations of the law, C.I.A. Director John Ratcliffe referred the information to the F.B.I. for a law enforcement investigation," the statement said. From last November to March, the court papers say, Mr. Rush asked for, and received, "a significant quantity of foreign currency and tens of millions of dollars in gold bars for work-related expenses." When the C.I.A. conducted a review of where the gold and currency were stashed, the agency was "unable to locate the gold bars or significant amounts of the foreign currency," according to court papers. On May 18, F.B.I. agents searched Mr. Rush's home and found "approximately 303 gold bars, each of which weighed approximately one kilogram," according to an affidavit. Based on the price of gold, the affidavit said, the estimated value of the gold exceeded $40 million. Investigators also seized nearly three dozen luxury watches, many of them Rolexes. The court papers do not indicate why Mr. Rush appears to have kept so much gold, and $2 million in U.S. currency, in his home, or what work project would have required him to amass such wealth. Read more of this story at Slashdot.

  • NASA Details Its Plan to Build a Lunar Base At the Moon's South Pole
    by BeauHD on 29/05/2026 at 7:00 am

    NASA has outlined a three-phase plan to build a lunar base at the moon's south pole. The first phase, from 2026 to 2029, will focus on robotic missions, landers, rovers, reactors, satellites, and Blue Origin's Blue Moon Mark 1 Endurance test. Later phases will add habitats, power systems, communications, cargo logistics, and rotating crews. Wired reports: According to a recent press conference, phase one will be particularly active: at least 25 missions and 21 surface landings. Without detailing specific dates, the agency said that over the next three years it will send rovers, including manned models for future mobility, drones, surface reactors, new-generation satellites, and payloads to prepare the ground. One of the first key missions will be the test of the Blue Moon Mark 1 Endurance module in fall 2026. Its purpose is to evaluate conditions for a controlled descent and validate navigation and positioning technology. It will not carry astronauts. If the mission is successful, Blue Origin plans a manned version around 2028, possibly with Blue Moon Mark 2. Moon Base II and III missions are also part of the program's 2026 startup. One will send rovers and payloads to evaluate more complex rover operations; the other will carry scientific instruments to study the behavior of materials and systems under extreme lunar conditions. Phase two, starting in 2029, marks the beginning of semipermanent infrastructure assembly and first occupancy operations. NASA plans to install advanced energy systems, including surface reactors, initial habitat elements, and more robust communication networks. Up to 60 tons of cargo will be delivered in 24 missions during this period. Phase three is for scale-up. The infrastructure in place will be strengthened and expanded to form durable centers with constant turnover of personnel. NASA envisions a lunar south pole with habitable modules, reliable power systems, logistics networks for cargo and crew transportation, and the shipment of about 38 tons of cargo annually for maintenance and expansion. "Every mission, crewed and uncrewed, will be a learning opportunity as we return to the lunar surface, build the infrastructure to stay, and master the skills required to live and operate in one of the most demanding and dangerous environments imaginable," said administrator Jared Isaacman in a NASA statement. "We will go for the science, for all we stand to gain from an economic and technological perspective, for the innovations that will make life better here on Earth, and to prepare for where we will inevitably go next." Read more of this story at Slashdot.

  • MIT Researchers Develop a Low-Cost Technique To Get Lithium Out of Rocks
    by BeauHD on 29/05/2026 at 3:30 am

    An anonymous reader quotes a report from MIT News: Currently, lithium hard rock extraction involves baking the rock at over 1,000 Celsius and chemically leaching it to extract lithium. The rest of the rock is discarded. Now, a team of researchers from MIT and elsewhere has developed a low-temperature process for extracting battery-grade lithium from the most common type of lithium-bearing mineral. The process uses a liquid reagent to dissolve the rock into the useful forms of its constituent parts: not just battery-ready lithium salts, but also smelter-grade alumina and cement-ready silica. After the minerals are extracted, the solvent and reagent can be recovered and used again so waste levels approach zero. The researchers estimate the closed-loop process is half the cost of traditional lithium hard rock extraction and could make it cost-competitive with extracting lithium from brine water. "We believe this approach is the lowest-energy, lowest-cost way of getting lithium not only out of hard rock, but period," says Yet-Ming Chiang, MIT's Kyocera Professor of Materials Science and Engineering. "That's what's motivating us to scale this. It will enable the energy transition through batteries that use lithium. This was one of the goals of The Climate Project at MIT -- to work on projects that, within a short number of years, could transition from the lab to commercialization and impact." A paper describing the process has been published in the journal Science. Read more of this story at Slashdot.

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