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

  • OpenAI 'In Early Talks To Give 5% Stake To US Government'
    by BeauHD on 02/07/2026 at 5:00 pm

    OpenAI is reportedly in early talks to give the U.S. government a 5% stake, potentially alongside similar contributions from other major AI companies. "Such a deal would help improve the industry's relations with the Trump administration and could help garner political support by sharing wealth generated by the AI boom with the public," reports The Guardian. From the report: [OpenAI CEO Sam Altman] and other OpenAI bosses have suggested that each of the biggest AI developers in the US should give 5% to their equity to an investment vehicle such as the Alaska Permanent Fund, a sovereign fund that invests US oil wealth into stocks and pays dividends to the state, the FT reported. The talks are "conceptual" and in early stages, it said, and any deal could require an act of Congress to implement. Both OpenAI and Anthropic have previously suggested in policy papers that a public or sovereign wealth fund may be required in the future to distribute shares to the public. In April, OpenAI said that a "public wealth fund" could provide "every citizen -- including those not invested in financial markets -- with a stake in AI-driven economic growth." Further reading: Bernie Sanders Unveils $7 Trillion Plan To Give Americans Control of AI Industry Read more of this story at Slashdot.

  • WhatsApp Usernames Are Already Raising Impersonation Red Flags
    by BeauHD on 02/07/2026 at 4:00 pm

    An anonymous reader quotes a report from TechCrunch: WhatsApp this week started rolling out username reservations ahead of the broader launch planned later this year. The feature -- which lets people find and message each other by handle instead of phone number -- is already raising impersonation concerns, drawing scrutiny from security experts and regulators in India, the app's largest market, with more than 500 million users. The rollout marks a shift in how people identify one another on WhatsApp. Instead of relying on phone numbers as the primary identifier, users will increasingly interact through platform-managed usernames, a change that Meta says improves privacy but that critics argue could create new opportunities for impersonation. [...] Asked about how it protects against impersonation, Meta told TechCrunch it reserves usernames for public figures, government entities, and "some variations" of those names so only the legitimate owner can claim them. The company did not explain, however, how it decides which lookalike usernames get proactively reserved and which don't. The concerns have already reached regulators in India, where cyber fraud schemes frequently exploit messaging platforms to impersonate police, banks, and government officials. [...] Rachel Tobac, chief executive of SocialProof Security, called usernames a net privacy gain because they reduce the need to share phone numbers, which can expose users to SIM-swap attacks, phishing, and account takeovers. Still, she said, lookalike usernames still create opportunities for impersonation. "Ultimately, usernames are a great idea to avoid leaking your phone number to folks you don't know, but it's important to verify identity with the username function too," Tobac told TechCrunch. Her advice for most users: Pick a username that isn't easily guessable, so it's harder for attackers to find you, message you cold, or harass and spam you. [...] The Mozilla Foundation said the introduction of usernames is likely to bring new tradeoffs. "Increased scams and impersonation from fake handles are potentially a big one," it told TechCrunch. "Checking a phone number can be a useful verification tool, but these harms are also permitted by the platform's fundamental design choices." Mozilla also flagged a broader interoperability question -- one worth logging if you're building on top of, or competing with, Meta's ecosystem. While letting users claim their existing Facebook and Instagram usernames may cut down on impersonation, it also shows how easily Meta can stitch identity together across its own apps, even as users still can't take that identity, or their contacts, to a rival platform. For now, WhatsApp says it is taking a gradual approach to the rollout. "We're taking our time and listening to feedback so that when it rolls out later this year we get it right," the company said in its FAQ. Read more of this story at Slashdot.

  • OnePlus Is Quietly Steering Customers Toward OPPO Products
    by BeauHD on 02/07/2026 at 3:00 pm

    OnePlus is directing customers in some European markets toward OPPO devices, with its German website presenting OPPO as the natural upgrade path for existing users. The regional handoff adds to "months of speculation that the smartphone brand is slowly being folded into its parent company," reports Android Authority. From the report: The banner, seen on OnePlus' German website, tells visitors seeking "the experience you trust" that OPPO offers the same speed, performance, and compatibility that OnePlus users have come to expect. It hosts devices ranging from earbuds and tablets to OPPO's latest foldables, with each button taking users straight to OPPO's website. Particularly revealing is the wording. Instead of pushing future OnePlus hardware, the company focuses on the fact that OPPO's products are built on the hardware and software that users already know, while promising seamless compatibility with current OnePlus devices. In other words, if you're up for your next upgrade, OnePlus seems to be saying OPPO has what you're looking for right now. Reports in the past several months have said OnePlus has been scaling back operations in several global markets. Previous restructuring reportedly included cutting headcount, a more focused regional strategy, and greater dependence on OPPO's infrastructure. The two brands have been sharing engineering resources, software development, and supply chains for years now, particularly as OxygenOS and ColorOS have begun to look more and more alike. Interestingly, the change appears to be regional. OPPO already has a retail footprint in Germany, so the handoff is fairly straightforward. In the United States, however, things are very different, where OPPO does not officially sell smartphones. That means American OnePlus customers aren't getting the same messaging, mostly because there isn't an OPPO lineup waiting to step in. Read more of this story at Slashdot.

  • The Space-Based Data Center Hype Machine Is Already In Orbit
    by BeauHD on 02/07/2026 at 11:00 am

    IEEE Spectrum argues that orbital data centers remain far from economically or technically practical despite Elon Musk's prediction that space will become the cheapest place to run AI within a few years. Deploying SpaceX's proposed million-satellite constellation would require enormous increases in launch and manufacturing capacity, while cooling, radiation, maintenance, latency, orbital debris, and astronomical interference present major unresolved obstacles. Longtime Slashdot reader xetdog shares the report: Consider this: There are roughly 14,500 active satellites in orbit. Musk's Starlink constellation accounts for about two thirds of those. Both the launch cadences and satellite-manufacturing capacity would have to scale up astronomically to deploy a million orbital data center satellites. For context, there have been roughly 7,000 orbital launches in all of human history. To loft 1 million satellites into low Earth orbit on SpaceX's Starship, which is designed to carry up to 60 satellites per vehicle, would require 16,666 launches exclusively devoted to satellite deployments. Considering that SpaceX launched a record 165 orbital missions in 2025, even at 10 times that cadence, it would take a decade. And how long would it take to build 1 million satellites, given Starlink's current pace of around 4,000 per year and a generous tenfold increase in capacity? Short of a manufacturing revolution, try 25 years. Dissipating heat in space also requires enormous radiators. As IEEE Spectrum editor Dina Genkina noted, startup Starcloud has sent only one Nvidia H100 GPU into orbit, and "their radiator was too weak to let the chip run at full power." A single 700-watt H100 would require about 1.4 square meters of radiator area, while a 100-megawatt data center could need 2,500 radiators measuring 80 square meters each. So, why are the hyperscalers hyping orbital data centers? Answer: because it's lucrative. "The Elon Musk part of it is honestly genius because he's got xAI building the data centers, SpaceX sending them to space, and Tesla building solar panels," Genkina says. "It's almost like he's paying himself." Read more of this story at Slashdot.

  • SpaceX Reportedly Has an AI Device Prototype
    by BeauHD on 02/07/2026 at 7:00 am

    According to the Wall Street Journal, SpaceX showed investors an early prototype of a slim, "handset-like" AI device running a proprietary operating system and integrating xAI technology. Elon Musk, however, denied the report, calling it "utterly false." TechCrunch reports: SpaceX, alongside sister company Tesla, does have the manufacturing expertise to pull off mass-producing a bunch of AI devices -- not to mention access to the chips needed to power any on-device compute. SpaceX has also signaled that it's keen to expand into wireless, with Starlink Mobile as a potential competitor to Verizon and AT&T. One analyst even went as far as to speculate that T-Mobile or AT&T would make fine acquisition targets for the rocket builder, though such a purchase would, undoubtedly, be pricey. It's also not clear if SpaceX is just throwing spaghetti at the wall or if it will attempt to really mass-produce and market such a device. But one thing that seems clearer is that if OpenAI is doing it, Musk would, perhaps, want to try to do it better. [...] Like OpenAI, SpaceX's prototype is reportedly designed to run on a proprietary operating system and integrate technology from xAI, Musk's AI company that SpaceX acquired earlier this year. This would prevent these new devices from being trapped inside another company's platforms (like Google's Android). But the intent also appears to be to create something new, with native AI interfaces. That said, the graveyard is crowded with the unsuccessful launches of AI devices from companies like Humane and Rabbit. A company wanting to sell an AI device does not equate to consumers wanting to buy such a thing. Yet. Read more of this story at Slashdot.

  • US Home Battery Installations Hit Record High On Rising Electricity Costs
    by BeauHD on 02/07/2026 at 3:30 am

    An anonymous reader quotes a report from Ars Technica: US homeowners have embraced home batteries in record-breaking numbers in early 2026, spurred on by state incentives while seeking to offset rising residential electricity costs. The trend could even unlock a more flexible energy supply for power grid operators and even AI data centers. New home battery installations reached a record 673 megawatts of energy storage in the first quarter of 2026, according to the US Energy Information Administration. That trend was driven by states with high electricity prices that have implemented policies to incentivize home battery installation, Bloomberg News reported. This residential battery trend stands out as a natural next step for states that have already successfully boosted rooftop solar adoption among homeowners, given how batteries enable homeowners to use stored solar energy at night. California and Hawaii accounted for the majority of new residential battery storage, while Texas and Arizona also saw significantly higher numbers of installations. California incentivizes homeowners with solar panels to also install batteries by offering better pricing for residential electricity exported to the grid after sunset, Bloomberg reported. Hawaii offers a one-time payment of $400 for every kilowatt of battery storage that homeowners install. However, the record-breaking home battery installations coincided with a slowdown in residential installations of solar panels -- the result of the Trump administration and Republican-driven One Big Beautiful Bill having eliminated a 30 percent federal solar tax credit for homeowners. Nonetheless, US electricity generation from solar power continues to rise and even surpassed coal-fired generation in April. The battery installation spree also coincides with rising electricity costs for US residential customers. The Energy Information Administration's latest data shows that the nationwide average for residential electricity costs increased by more than 7 percent in April 2026 when compared to electricity costs in April 2025. So homeowners with smart home battery-management systems could benefit from storing energy when electricity prices are lowest and draining them during peak demand periods. 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