Skip to content
I T S S
  • Welcome
  • Hardware
  • Internet
  • Networking
  • Security
  • Data Recovery
  • Support
  • Contact
  • Webmail

A Nice Little Cryptography Primer

By itss | 28/06/2021
0 Comment

Pun Intended.

Category: Technology
Post navigation
← pfSense / Wireguard / Bad Code / Close Call Why Quake3 was so fast : Fast Inverse Square Root →

Recent Posts

  • Hardware Exploits?
  • Why Quake3 was so fast : Fast Inverse Square Root
  • A Nice Little Cryptography Primer
  • pfSense / Wireguard / Bad Code / Close Call
  • Apple Continues Its Trip To The Dark Side With The Release of MacOS 17 (Big Sur)

Slashdot

News for nerds

  • 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.

  • Europe Told To Cool Its Datacenter Boom Before Water, Power Run Short
    by BeauHD on 28/05/2026 at 11:00 pm

    A new Grundfos report warns that Europe's datacenter boom could strain water supplies and power grids unless regulators bake water and energy efficiency into planning, reporting, and incentives for new facilities. The Register reports: According to the report, the EU-wide server farm IT load is about 10 GW today, and is expected to rise to 35 GW by 2030 -- just four years away. These facilities account for about 3 percent of all electricity consumption now, but this is projected to hit 7-9 percent by the end of the decade. Water and energy are intertwined in cooling systems. Grundfos claims that cooling infrastructure accounts for a substantial share of a datacenter's resource use, representing about 38 percent of total electricity consumption in an average facility, while water demand in large hyperscale facilities can reach 11,356 to 18,927 cubic meters per day -- enough for up to 155,000 EU households. Rapid growth in bit barns is placing increased pressure on energy systems, water resources and local infrastructure, the report notes. Without careful coordination, inefficient or poorly sited facilities risk exacerbating these problems and triggering public opposition. [...] Grundfos advises regulators to integrate water efficiency and cooling design requirements directly into planning approvals for new facilities and any large-scale expansions to encourage adoption of efficient cooling technologies. It also advocates investment incentives from governments such as tax credits, green financing mechanisms, and grant programs for technologies that demonstrably reduce energy and water consumption. Integration between server halls and district heating networks is another aspect worth consideration, the report adds. Read more of this story at Slashdot.

  • Anthropic Releases Opus 4.8 With New 'Dynamic Workflow' Tool
    by BeauHD on 28/05/2026 at 10:00 pm

    Anthropic has released Claude Opus 4.8 with stronger performance and better handling of uncertain or flawed data, including a greater tendency to flag issues rather than make unsupported claims. The update also introduces a "Dynamic Workflows" research preview for coordinating complex tasks across many subagents. TechCrunch reports: Opus 4.8 comes with the expected best-in-class benchmark results, but there's also particular attention to how the model manages bad or uncertain data. In the launch post, Anthropic's early testers found that the new model is "more likely to flag uncertainties about its work and less likely to make unsupported claims." Echoing this point, a testimonial from Bridgewater associates said the biggest difference in the upgrade was "Opus 4.8's tendency to proactively flag issues with the inputs and outputs of an analysis, something other models routinely missed and left to the users to catch." Together with the new model, Anthropic launched a feature called Dynamic Workflows, which will be available in research preview. The system is designed to help larger models like Opus manage complex tasks across hundreds of parallel subagents. "Claude Code alongside Opus 4.8 can now carry out codebase-scale migrations across hundreds of thousands of lines of code from kickoff to merge, with the existing test suite as its bar," the post explains. As for Mythos, Anthropic's most advanced model, the company hinted it could be made publicly available in the not too distant future. "We're making swift progress on developing these safeguards and expect to be able to bring Mythos-class models to all our customers in the coming weeks," the company wrote. Read more of this story at Slashdot.

  • Occupy Wall Street Co-Founder Built an On-Device AI For Activists
    by BeauHD on 28/05/2026 at 9:00 pm

    An anonymous reader quotes a report from Gizmodo: In an era where Silicon Valley's conservatism is both expressed openly and becoming more intense by the day, it's strange to think that tech was once seen as a hive of liberalism. The right-wing nature of today's tech industry means that its products tend to also be seen as serving right-wing interests, either in their actual operation (like X's openly and unrepentantly right-wing chatbot Grok) or by the simple fact that their existence serves to enrich a small group of very powerful, very conservative people. But does it have to be this way? Can LLMs and AI agents find a place in the toolkit of progressive activist groups? The conviction that they can is the idea behind a new app called Outcry, which provides a chatbot designed specifically as a "private, on-device AI mentor for activists, organizers and movement builders." (There's also a web version, although it obviously lacks the privacy benefits of being entirely offline.) It's the brainchild of Occupy Wall Street co-creator Micah White, who recently wrote a blog post about the thinking behind the project. [...] Outcry's other distinguishing feature is that its dataset is entirely offline -- it's included with the download. According to the readme, the entire dataset is downloaded to your device at first launch, and stored in your library's Application Support directory. So, how effectively does Outcry serve as a guide for collective action? "I'd say that its information is pretty high-level and general, not least because its offline nature prevents it from accessing specific details not contained in its database," writes Gizmodo's Tom Hawking. He continued: "This app has the potential to be a really valuable resource, especially for people who are just beginning to become involved with activism and genuinely don't know where to begin -- and getting over that first step can be hard." Read more of this story at Slashdot.

Archives

  • September 2022
  • November 2021
  • June 2021
  • March 2021
  • November 2020
  • October 2020
  • September 2020
  • February 2020
  • January 2020
  • October 2019
  • August 2018
  • July 2018
  • April 2018
  • February 2018
  • January 2018
  • December 2017
  • October 2017
  • September 2017
  • August 2016
  • July 2016
  • March 2016
  • February 2016
  • August 2015
  • May 2015

Categories

  • Innovation
  • Security
  • Software
  • Technology

Tags

backdoor cisco coding json laziness patterns public information announcement security vulnerability
© 2017 IT Sales & Services Ltd
Quality IT solutions in Tanzania since 2010
Iconic One Theme | Powered by Wordpress