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

  • New UK Referendum Would Flip 'Brexit' Result of a Decade Ago, Poll Finds
    by EditorDavid on 13/06/2026 at 4:34 pm

    It's the 10-year anniversary of Britain's "Brexit" vote withdrawing from the European Union. But a new UK poll "shows that a new Brexit referendum would reverse the vote that led to Britain's departure," reports Bloomberg: Fifty-two percent of Britons think the UK should rejoin the EU, according to an Ipsos survey of 1,137 British adults conducted between May 14 and May 20. That's the inverse of the mood in June 2016 when a comparable share of the electorate backed Brexit... Younger voters overwhelmingly favor reversing Brexit, whereas half of those ages 55 and above oppose returning to the bloc. "The number of people who say Brexit is going worse than they had predicted has almost doubled in the past five years," reports The Independent, " from 27% in 2021 to 48% today — more than those saying it was going as well as or better than expected." [T]here is more backing for a second referendum, with 48 per cent now saying they would support one, against 27 per cent who would oppose it. Even a fifth of Reform UK voters and a quarter of those who voted Leave in 2016 would back a second vote, the study found. Tufts University discussed the last 10 years with the European Studies chair at their international relations graduate school: Q: Have their fears of negative financial effects been realized? A: The figures are quite revealing: The British GDP has been reduced by 6-8%, business investment has been reduced by 12%, and trade volume has been reduced by 15%, compared to what it could have been if the U.K. had remained in the EU... Q: What do you think happens next? A: The United Kingdom made a choice and they might have the opportunity, at some point, to revise this choice. I hope that when they have to decide again, they will be much more informed. Read more of this story at Slashdot.

  • US Congress Lets 'Warrantless Wiretap' Law FISA Lapse
    by EditorDavid on 13/06/2026 at 3:34 pm

    It's the U.S. law that allows wiretaps without a warrant for surveilling foreign targets. And the U.S. Congress just let it lapse. Sort of. NPR reports: Each year, the provision is used by American intelligence agencies to collect the electronic communications of hundreds of thousands of foreigners located outside of the United States. The government says that more than 60% of the president's daily intelligence briefing relies on information collected under the authority. The tool officially lapsed at the end of the day on Friday. What happens now? Intelligence collection under FISA's Section 702 is authorized annually by a federal court — and the law allows for that collection to continue for the duration of the court's authorization, even if the law lapses before the court's next approval. That means companies — electronic communications service providers, in this context — will still be legally required to turn over material to intelligence agencies. Still, some lawmakers worry that the companies compelled to turn over communications may attempt to challenge the law in court, possibly leading to an indeterminately long window during which they stop providing intel. Advocates on all sides of the surveillance fight believe those challenges are ultimately likely to fail, but those closely linked to the intelligence community emphasize that even a small pause comes with risks ahead of major events like America's 250th celebration and the World Cup. Read more of this story at Slashdot.

  • Mystery Orb Videos, Other UFO Records Released By White House
    by BeauHD on 13/06/2026 at 2:03 pm

    The Trump administration released another large batch of government UAP records, including videos of glowing orb-like objects appearing to split and rejoin, witness accounts, illustrations, and decades-old investigative documents. Axios reports: The documents indicate that government agents have spent years monitoring, investigating and documenting suspected UAP incidents. At lease some of the sightings took place near sensitive government facilities, according to the reports. Videos showing red and yellow light-emitting orbs, some of which appear to split apart and then reattach as they fly across the sky. The videos were taken by witnesses whom the government deemed "credible." Illustrations and videos showing reenactments of what observers saw, and the positions they were in when they viewed them. Memos from government agents describing their experiences seeing flying objects. An illustration of a grayish-white balloon-like object hovering above an area near Colorado Springs, Colo. An illustration depicting a series of incidents that took place in the "western United States" where government officials reported seeing UAPs in 2023. There also are decades-old records documenting the government's involvement in investigating UAPs, including a 1949 letter then-FBI Director J. Edgar Hoover wrote federal agents after receiving a message from an American citizen expressing their belief they'd seen a non-human-made flying object. The records released by the administration do not express any conclusions as to whether the government believes the UAPs represent the existence of alien life. They also do not indicate any conclusions as to whether UAPs represent a national security threat to the U.S. Read more of this story at Slashdot.

  • World's First Crewed Solid-State Flight Electrifies Aviation's Future
    by BeauHD on 13/06/2026 at 11:00 am

    The Helios Horizon has completed what its developers call the first crewed, fixed-wing flight powered by solid-state batteries. New Atlas reports: On June 5, test pilot Miguel Iturmendi lifted off from Zephyrhills Municipal Airport in Florida at the controls of the Helios Horizon -- the first crewed, fixed-wing aircraft ever to fly on solid-state batteries. The flight was neither spectacular in distance nor in duration -- it was a series of short tests to validate the aircraft's weight and balance after the new batteries had been installed -- but it didn't need to be to make history. [...] The Helios Horizon's previous lithium-ion pack delivered 260 Wh/kg (watt-hours per kilogram, a measure of how much energy a battery holds relative to its weight). The new solid-state cells hit 410 Wh/kg, a 60% jump. Chief test pilot and company founder Miguel Iturmendi expects that figure to grow another 40% within two years. Though the battery pack can be topped up over any AC outlet, no special infrastructure needed, fast-charging is also supported for up to 80% capacity in under 15 minutes. The aircraft also recovers energy in flight through wing-mounted solar panels and a regenerative system that spins the propeller as a wind turbine during glides and descents. "Regenerative flight can significantly extend the aircraft's range," Iturmendi said after the test flights. The Helios Horizon itself started life as a Pipistrel Taurus motorized glider. Iturmendi's team added proprietary battery management, a custom propulsion stack, thermodynamic controls, and solar panel wing extensions. The aircraft already holds the world altitude record for electric planes in its weight class, having reached 24,000 ft (7,315 m). The next goal is 40,000 ft (12,192 m), commercial cruising altitude, in stratospheric flights planned for later this year. Read more of this story at Slashdot.

  • Anthropic 'Suspends' All Mythos and Fable Access After US Order Limiting Foreign Access
    by EditorDavid on 13/06/2026 at 7:00 am

    "Anthropic said on Friday it will 'abruptly disable' its most advanced AI models for all users," reports Reuters, "after the U.S. government ordered it to suspend access to the models for foreign nationals, citing national security concerns. The company received the export control directive to suspend access to Fable 5 and Mythos 5 for all foreign nationals, without being given specific details of its national security concern, Anthropic said in a statement." Anthropic's blog post writes that the directive applies to foreign nationals "whether inside or outside the United States, including foreign national Anthropic employees. The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance." "Access to all other Anthropic models will not be affected." We received the directive from the government today at 5:21pm (ET)... Our understanding is that the government believes it has become aware of a method of bypassing, or "jailbreaking" Fable 5... We have not even received a disclosure of a concerning non-universal potential jailbreak that led to a harmful result. The potential jailbreaks that have been disclosed to us are either entirely benign responses or are minor findings that provide no Mythos-specific uplift. To date, the government has only given us verbal evidence of a potential narrow, non-universal jailbreak, which essentially consists of asking the model to read a specific codebase and fix any software flaws. Our understanding is that one potential jailbreak was shared with the government. We have reviewed a report that we believe is the basis of the government's directive and validated that the level of capability displayed there is widely available from other models (including OpenAI's GPT-5.5), and is used every day by the defenders who keep systems safe... We are complying with the government's legal directive and are removing access to Fable 5 and Mythos 5 for all users. However, we disagree that the finding of a narrow potential jailbreak should be cause for recalling a commercial model deployed to hundreds of millions of people. If this standard was applied across the industry, we believe it would essentially halt all new model deployments for all frontier model providers. As we have stated publicly, we believe the government should have the ability to block unsafe deployments, as part of a statutory process that is transparent, fair, clear, and grounded in technical facts. This action does not adhere to those principles. We apologize for this disruption to our customers. We believe this is a misunderstanding and are working to restore access as soon as possible. Reuters notes that Amazon's cloud unit AWS "said late on Friday that Anthropic has asked it to revoke access to the models for 'all users in all regions.'" Dean Ball, a former White House official who contributed to the AI Action Plan the administration issued in the summer of 2025, said in a post on X that the order suggests all "non-Americans" would be restricted from using Anthropic's latest models, including those based in the U.S. "This means you should expect to have to prove your citizenship to use Anthropic models," Ball said. Several key Anthropic personnel, including co-founder Chris Olah, AI researcher Andrej Karpathy and philosopher Amanda Askell, were born outside the United States. Read more of this story at Slashdot.

  • Data Center Opponents Have Blocked Or Delayed Projects Worth Nearly $130 Billion In 2026
    by BeauHD on 13/06/2026 at 3:30 am

    An anonymous reader quotes a report from NBC News: The first quarter of 2026 produced the most blocked and delayed data center projects on record, according to a new study shared with NBC News. The study -- conducted by Data Center Watch, a project of the AI intelligence firm 10a Labs that tracks local data center activity -- found that data center opponents blocked or delayed at least 75 projects nationwide worth about $130 billion from January through March, the most in a three-month period since the group began tracking in 2023. "The quarter reflected a structural shift rather than a cyclical spike: communities have internalized an opposition playbook, legislative sessions introduced formal regulatory uncertainty, and the number of active opposition groups more than doubled to 833 across 49 states," the authors wrote, noting that the total number and value of data centers blocked or delayed during the first three months of 2026 roughly matched the total for all of 2025. [...] The report found that legislative pushes for moratoriums on constructing data centers ballooned during the first quarter of 2026, sponsored by lawmakers on both sides of the aisle. The report found such proposals introduced in 14 states from January through March, with Sen. Bernie Sanders, I-Vt., and Rep. Alexandria Ocasio-Cortez, D-N.Y., introducing a federal version. Though none of the proposals has been signed into law, one did reach the desk of Democratic Gov. Janet Mills in Maine. She vetoed it in April. More than 300 bills were introduced in statehouses across the country just in the first six weeks of 2026, the authors found, saying it marked "a clear shift from incentive-focused policies toward regulatory oversight as the scale of energy demands became clearer." What's more, the study found that the number of active grassroots opposition groups across the country more than doubled from 396 at the end of 2025 to 833 by March. The authors found that the states with the most opposition groups through that month were Maryland, Ohio and Texas. "In some cases," they wrote, "opposition mobilized before any project was officially filed, the mere rumor of a data center was enough to trigger organized resistance." 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