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

  • America's CIA Recruited Iran's Nuclear Scientists - By Threatening To Kill Them
    by EditorDavid on 04/04/2026 at 10:34 pm

    A former U.S. spy spoke to The New Yorker about "years of clandestine work for the C.I.A. — which, he said, had 'prevented Iran from getting a nuke'." [Kevin] Chalker told me that, as he understood it, the Pentagon had suggested running commando operations to kill key Iranian scientists, as Israel subsequently did. But the C.I.A. proposed recruiting those scientists to defect, as U.S. spies had once courted Soviet physicists. Chalker paraphrased the agency's pitch: "We can debrief them and learn so much more — and, if they say no, then you can kill them." (A more senior agency official confirmed the broad strokes of his account.) The White House liked the agency's idea, and [president George W.] Bush authorized the C.I.A. to conduct clandestine operations to stop Iran from building a bomb. The C.I.A. program that Chalker described to me became publicly known in 2007, when the Los Angeles Times reported on the existence of an agency project called Brain Drain. But the details of the "invitations" to Iranian scientists have not previously been reported... Chalker typically had about ten minutes to explain, as gently as possible, that he was from the C.I.A., that he had the power to secure the scientist and his family a comfortable new life in the U.S. — and that, if the offer was rejected, the scientist, regrettably, would be assassinated. (Chalker tried to emphasize the happier potential outcome.) Killing a civilian scientist would violate international law. The American government has denied ever doing it, and I found no evidence that the U.S. has carried out any such murders. A former senior agency official familiar with the Brain Drain project told me all that mattered was that Iranian scientists had believed they would be killed, regardless of whether the U.S. actually made good on the threat. And Israel had been conducting a campaign to assassinate Iranian scientists, which made the prospect of lethal reprisal highly plausible. Other former officials with knowledge of the project told me that the C.I.A. sometimes shared intelligence with Mossad which enabled its operatives to locate and kill a scientist. Such information exchanges were kept vague enough to preserve deniability if a more legalistic U.S. Administration later took office... [Chalker] is confident that those who rebuffed him were, in fact, killed — one way or another... One of Chalker's colleagues told me that, against the backdrop of so many Israeli assassinations, Chalker's interactions with Iranian scientists could almost be considered humanitarian — he had been "throwing them a lifeline." Of the many scientists he approached, three-quarters ultimately agreed to coöperate. Their 10,000-word article suggests Chalker may now be resentful the CIA didn't help him in a later unrelated lawsuit, noting it's "nearly unheard of for ex-spies to divulge their past activities." But Chalker also says he "helped obtain pivotal information that laid the groundwork for more than a decade of American efforts to disrupt the Iranian nuclear-weapons program, from the Stuxnet cyberattacks, which occurred around 2010 [destroying 1,000 uranium-enriching centrifuges], to the Obama Administration's nuclear deal, in 2015, to the U.S. air strikes on Iranian atomic-energy facilities in the summer of 2025." Read more of this story at Slashdot.

  • Before Webcomics: Selling Political Cartoons On BBSes In 1992
    by EditorDavid on 04/04/2026 at 9:34 pm

    Slashdot reader Kirkman14 writes: A year before the Web opened to the public, Texas entrepreneur Don Lokke was trying to syndicate weekly political cartoons to bulletin board systems. His "telecomics," as he called them, represent an overlooked early experiment in online comics. Lokke launched his main series, "Mack the Mouse" at the height of the 1992 Clinton-Bush-Perot presidential race. His mouse protagonist voiced the frustrations felt by everyday Americans about rising taxes and the recession. Lokke gave away "Mack" for free, but sold subscriptions to his other telecomics, betting sysops would pay for exclusive content. The timing wasn't crazy: enthusiasm for BBSes as an industry was surging, with conferences like ONE BBSCON promoting "BBSing for profit." But the Web soon deflated those hopes, and Lokke left BBSes behind in 1995. Decades later, about half of his nearly 300 telecomics were recovered and preserved on 16colors. Read more of this story at Slashdot.

  • Are Employers Using Your Data To Figure Out the Lowest Salary You'll Accept?
    by EditorDavid on 04/04/2026 at 8:34 pm

    MarketWatch looks at "surveillance wages," pay rates "based not on an employee's performance or seniority, but on formulas that use their personal data, often collected without employees' knowledge." According to Nina DiSalvo, policy director at labor advocacy group Towards Justice, some systems use signals associated with financial vulnerability — including data on whether a prospective employee has taken out a payday loan or has a high credit-card balance — to infer the lowest pay a candidate might accept. Companies can also scrape candidates' public personal social-media pages, she said... A first-of-its-kind audit of 500 labor-management artificial-intelligence companies by Veena Dubal, a law professor at University of California, Irvine, and Wilneida Negrón, a tech strategist, found that employers in the healthcare, customer service, logistics and retail industries are customers of vendors whose tools are designed to enable this practice. Published by the Washington Center for Equitable Growth, a progressive economic think tank, the August 2025 report... does not claim that all employers using these systems engage in algorithmic wage surveillance. Instead, it warns that the growing use of algorithmic tools to analyze workers' personal data can enable pay practices that prioritize cost-cutting over transparency or fairness... Surveillance wages don't stop at the hiring stage — they follow workers onto the job, too. The vendors that provide such services also offer tools that are built to set bonus or incentive compensation, according to the report. These tools track their productivity, customer interactions and real-time behavior — including, in some cases, audio and video surveillance on the job. Nearly 70% of companies with more than 500 employees were already using employee-monitoring systems in 2022, such as software that monitors computer activity, according to a survey from the International Data Corporation. "The data that they have about you may allow an algorithmic decision system to make assumptions about how much, how big of an incentive, they need to give to a particular worker to generate the behavioral response they seek," DiSalvo said. The article notes that Colorado introduced the "Prohibit Surveillance Data to Set Prices and Wages Act" to ban companies from setting pay rates with algorithms that use payday-loan history, location data or Google search behavior for algorithmically set. Thanks to long-time Slashdot reader sinij for sharing the article. Read more of this story at Slashdot.

  • Anthropic Announces Claude Subscribers Must Now Pay Extra to Use OpenClaw
    by EditorDavid on 04/04/2026 at 7:34 pm

    Anthropic's making a big and sudden change — and connecting its Claude AI to third-party agentic tools "is about to get a lot more expensive," writes the Verge: Beginning April 4th at 3PM ET, users will "no longer be able to use your Claude subscription limits for third-party harnesses including OpenClaw," according to an email sent to users on Friday evening. Instead, if users want to use OpenClaw with Claude, they'll have to use a "pay-as-you-go option" that will be billed separate from their Claude subscription. Anthropic's announcement added these extra usage bundles are "now available at a discount." Users can also try Anthropic's API, notes VentureBeat, "which charges for every token of usage rather than allowing for open-ended usage up to certain limits, as the Pro and Max plans have allowed so far. " The technical reality, according to Anthropic, is that its first-party tools like Claude Code, its AI vibe coding harness, and Claude Cowork, its business app interfacing and control tool, are built to maximize "prompt cache hit rates" — reusing previously processed text to save on compute. Third-party harnesses like OpenClaw often bypass these efficiencies... [Claude Code creator Boris Cherny explained on X that "I did put up a few PRs to improve prompt cache hit rate for OpenClaw in particular, which should help for folks using it with Claude via API/overages."] Growth marketer Aakash Gupta observed on X that the "all-you-can-eat buffet just closed," noting that a single OpenClaw agent running for one day could burn $1,000 to $5,000 in API costs. "Anthropic was eating that difference on every user who routed through a third-party harness," Gupta wrote. "That's the pace of a company watching its margin evaporate in real time." However, Peter Steinberger, the creator of OpenClaw who was recently hired by OpenAI, took a more skeptical view of the "capacity" argument."Funny how timings match up," Steinberger posted on X. "First they copy some popular features into their closed harness, then they lock out open source." Indeed, Anthropic recently added some of the same capabilities that helped OpenClaw catch-on — such as the ability to message agents through external services like Discord and Telegram — to Claude Code... User @ashen_one, founder of Telaga Charity, voiced a concern likely shared by other small-scale builders: "If I switch both [OpenClaw instances] to an API key or the extra usage you're recommending here, it's going to be far too expensive to make it worth using. I'll probably have to switch over to a different model at this point." "I know it sucks," Cherny replied. "Fundamentally engineering is about tradeoffs, and one of the things we do to serve a lot of customers is optimize the way subscriptions work to serve as many people as possible with the best mode..." OpenAI appears to be positioning itself as a more "harness-friendly" alternative, potentially using this moment as a customer acquisition channel for disgruntled Claude power users. By restricting subscription limits to their own "closed harness," Anthropic is asserting control over the UI/UX layer. This allows them to collect telemetry and manage rate limits more granularly, but it risks alienating the power-user community that built the "agentic" ecosystem in the first place. Anthropic's decision is a cold calculation of margins versus growth. As Cherny noted, "Capacity is a resource we manage thoughtfully." In the 2026 AI landscape, the era of subsidized, unlimited compute for third-party automation is over. For the average user on Claude.ai, the experience remains unchanged; for the power users running autonomous offices, the bell has tolled. Read more of this story at Slashdot.

  • No, AMD Is Not Buying Intel
    by EditorDavid on 04/04/2026 at 6:34 pm

    "The April 1st timing should have been your first clue," writes Gadget Review. TechSpot's false story was just an April Fool's prank — although Gadget Review thinks it's still funny how "something about this particular piece of satire felt uncomfortably plausible." Maybe it's because AMD stock sits around $196 while Intel hovers near $41, or perhaps it's the poetic justice of the underdog finally eating the giant. The semiconductor world has witnessed stranger reversals, but none quite this dramatic. Your gaming rig's CPU battle represents decades of corporate warfare, legal grudges, and technological leapfrogging that makes Game of Thrones look like a friendly board game. Picture this: In 1975, AMD reverse-engineered Intel's 8080 processor, creating the Am9080 clone. The audacity was breathtaking — AMD spent 50 cents per chip to manufacture something they sold for $700. That's a 1,400% markup on borrowed technology, making today's GPU prices look reasonable. This relationship evolved from copying to partnership to bitter rivalry. The companies signed second-sourcing deals in the late 1970s, with AMD becoming Intel's official backup supplier. Then came the lawsuits. AMD sued Intel for antitrust violations in 2005, eventually settling for $1.25 billion in 2009. That settlement money helped fund the Ryzen revolution that's currently eating Intel's lunch. The historical irony runs deeper than your typical tech rivalry. AMD literally started as Intel's shadow, creating chips by studying Intel's designs under microscopes. Today, Intel engineers probably study AMD's Zen architecture the same way... This April Fool's joke works because it captures something true about power shifts in technology. The site TipRanks notes that both companies saw their stock price rise Wednesday, though that might not be related to the false article. "Positive analyst coverage from Wells Fargo could be acting as a catalyst for AMD stock today. Intel also announced plans to buy back its 49% equity interest in a joint venture with Apollo Global Management APO." Read more of this story at Slashdot.

  • Amazon Must Negotiate With First Warehouse Workers Union, US Labor Board Rules
    by EditorDavid on 04/04/2026 at 5:34 pm

    Amazon "must negotiate with a labor union representing some 5,000 workers at a company warehouse on Staten Island," reports Reuters, citing a ruling Wednesday from America's National Labor Relations Board (NLRB). The union formed in 2022, according to the article, and "has been seeking to negotiate with Amazon over pay, working conditions and other matters." The NLRB said in its ruling that Amazon "has engaged in unfair labor practices" by refusing to bargain with the labor group or to recognize its legitimacy... Amazon said on Thursday it disagreed with the NLRB's ruling. "Representatives of the NLRB improperly influenced this election," the company said in a statement, suggesting it planned to appeal. "We're confident an unbiased court will overturn the original certification, and we look forward to the opportunity for our team to fairly voice their opinions." An appeal would likely preclude Amazon from having to comply with the NLRB's order while it makes its way through the courts... Related to the Staten Island case, Amazon has argued that the NLRB itself is unconstitutional and sued to block the agency from ruling on it. The matter is still pending. After forming independently, that union "has since aligned with the International Brotherhood of Teamsters," the article points out. The Teamsters represent 1.3 million American workers, according to a statement they issued this week, which also includes this quote from the president of Amazon Labor Union-e Local 1. "We are making history at Amazon, and we are doing it through undiluted worker power..." Their statement adds that the ruling "came only one day after the union announced another historic victory that upheld Amazon Teamsters' right to strike." 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