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

  • Three EU Officials Not Sold on Europe's Homegrown Alternative to Microsoft Teams
    by EditorDavid on 04/10/2026 at 7:21 am

    Politico EU reports: The European Commission has rolled out an alternative to Microsoft Teams — but officials using it aren't impressed, with one describing the tool as "absolute shit." The Commission introduced Element Pro over the summer as a "sovereign back-up to Teams," according to an internal staff memo seen by POLITICO. The platform is intended to provide a fallback for Commission communications if U.S.-based Teams becomes unavailable.... But three officials have questioned why the Commission needs the new system — and whether it works well enough to serve as a genuine backup. "I don't understand the added value here," one official wrote on an internal staff message board, seen by POLITICO. Another described the tool as "absolute shit." A third official said that, judging matters on how well Element Pro works compared to Teams, the U.S. would "instantly win the war" if it ever decided to switch off its technology... The Commission hosts the Element system on its own infrastructure rather than relying on Microsoft's cloud. That gives the institution greater control over its communications data and systems... Element is a U.K. company whose software is used by governments and public-sector organizations in Europe... Element CEO Matthew Hodgson told POLITICO in a call using Element software that the Commission is still trialing it. "Obviously there are going to be some teething issues," he said, adding there will always be "cognitive dissonance" when switching to a new app, if only because the "buttons" are in a different place. He noted that the United Nations and NATO also use Element Pro. The article adds that earlier this year, France announced millions of civil servants will switch to home-grown alternatives to American video-conferencing tools including Microsoft Teams and Zoom by 2027, while Austria's military also replaced Microsoft Office with the German-made LibreOffice last year. Read more of this story at Slashdot.

  • This Virus Stole a Human Gene and Won't Let Go of It
    by EditorDavid on 04/10/2026 at 3:21 am

    "Scientists have discovered a virus that is a tiny bit human, carrying a gene it stole from our ancestors about 100,000 years ago," writes the New York Times. "And this virus may be using our own gene to infect us." Phys.org explains that it's "both an important gene for brain function and a jumping gene capable of moving and inserting itself into genomes." BC200 is found only in humans and related primates and was discovered in the late 1980s as an abundant noncoding RNA in human neurons. Although BC200's physiological function is poorly understood, evidence suggests it may be involved in regulating the translation of neuronal messenger RNAs into proteins... The researchers also suspect that BC200 jumped in skin cells because these are the only cells known to be infected by molluscum contagiosum virus (MCV). The gene is also abnormally expressed in some tumors and overexpressed in the brains of patients with Alzheimer's disease, suggesting its jumping ability could play roles in these diseases. [Cedric Feschotte, a senior author of the study] said he and his colleagues would like to explore whether the molluscum contagiosum virus uses BC200 to manipulate human host cells. They are also interested in better understanding the gene's role in disease, including breast and other types of tumors in which it is abnormally expressed, and whether it jumps in cancer cells and causes mutations. Thanks to Slashdot reader joshuark for sharing the news. Read more of this story at Slashdot.

  • Physicists Identify 'Octupolar' Magnetism, With Implications for Quantum Technologies
    by EditorDavid on 04/10/2026 at 1:21 am

    While most magnets have two poles (north and south, or positive and negative), recent advances in quantum mechanics have revealed an "octupolar order," writes Phys.org, where a pattern of particles in a crystalline structure "behaves as if it has eight magnetic poles rather than the familiar two." Now, a team led by quantum physicists at the University of Toronto has established a new method for observing quantum magnetic states using light to probe the atomic vibrations produced as electrons spin. The work is a critical first step toward harnessing multipolar magnetism for practical technologies, including next-generation data storage and computing devices. "We identified new signatures of a hidden type of magnetic state which cannot be detected using ordinary probes," says Arun Paramekanti, a professor in the Department of Physics and the Center for Quantum Information & Quantum Control in the Faculty of Arts & Science at the University of Toronto, and senior author of a study published in Physical Review Letters that describes the findings. "Our research opens up the possibility for using higher-order magnets in several applications including controllable read-write memory elements found in everyday computers...." By directing a special type of rotating light at magnetic materials, the team observed a clear optical fingerprint of the otherwise hidden magnetic order.... The findings offer a new tool for uncovering and manipulating previously inaccessible forms of magnetism, opening new avenues for quantum technology development. Read more of this story at Slashdot.

  • Surveillance Company Tells Cops It Wants to Add Facial Recognition to Flock Cameras
    by EditorDavid on 04/10/2026 at 12:21 am

    404 Media reports: "We will not add facial recognition to our devices," Flock CEO Garrett Langley said in a recent video. But other, third-party companies are telling cops that they are willing to add facial recognition to data gathered by Flock cameras in order to "close that gap." A company called VIDIZMO is advertising the capability to export footage from FlockOS to its own platforms that do facial recognition, behavior prediction, and racial and gender analysis on live camera feeds. VIDIZMO is a several decades-old video analysis and database company that has started offering facial recognition technology to cops within the last six months. In a May email to Johnson City, Tennessee, deputy police chief Michael Adams, a salesperson from VIDIZMO wrote that the company's product could do facial recognition on both Flock and Axon [body-worn camera] data in "one searchable platform...." VIDIZMO's CEO, Nadeem Khan, told 404 Media on a video call that the company has not yet started running facial recognition tech on footage from Flock cameras, and that it has not actually built the specific tool that would export data from Flock's system to its own platform (though the company advertises this capability online, and the company already sells other facial recognition products). But Khan said VIDIZMO "would love to do the integration," and that he believes facial recognition "is the way the world is going, the way the world will have to be," and that he thinks Flock should offer the capability itself in a way that "balances privacy, security, and the freedom that we enjoy in this country." The article notes that VIDIZMO says on its website, "You can identify individuals from seven races: White, Black, Indian, East Asian, Southeast Asian, Middle Eastern, and Latino Hispanic." VIDIZMO adds that stores or cities can also then do "demographic analysis" for marketing purposes by determining the races or ages of people showing up.... Read more of this story at Slashdot.

  • As 'Falcon Heavy' Launches, SpaceX Plans Dragon and Falcon 9 Phase Out As Starship Ramps Up
    by EditorDavid on 03/10/2026 at 11:21 pm

    Spaceflight Now reports: "A SpaceX Falcon Heavy rocket launched from Florida Thursday night on a classified mission for the National Reconnaissance Office, America's spy satellite agency... The NRO has previously flown payloads on 22 Falcon 9 rockets but this is the first time it has used the heavy-lift Falcon Heavy, which consists of three Falcon 9 boosters and an upper stage, topped by a payload fairing. The powerful rocket, which lifts off under the power of 27 Merlin 1D engines, was introduced to great fanfare in 2018 and made its 14th flight Thursday night... NROL-97 was SpaceX's third Falcon launch of the day. In addition to the Crew 13 mission, the company launched 130 payloads on the Transporter 13 rideshare mission from its West Coast pad at Vandenberg Space Force Base in California. It was the first time the company has landed four boosters in a single day. CNN reports: As Starship flights ramp up, SpaceX has made clear that the company will phase out the use of two of its most iconic creations: the Dragon spacecraft, which ferries astronauts and cargo to and from the International Space Station, and the Falcon 9 rocket, which for a decade has dominated the global launch market. These vehicles not only revolutionized the space industry in their own way, they're also still very much essential to ongoing work in Earth orbit, without clear backup options in place. The prospect of this loss is already spurring panic among some satellite operators, said Caleb Henry, director of research at analytics firm Quilty Space... Henry said he expects that most of the remaining space on board Falcon 9 rockets has already been sold and — beyond early 2029 — such flights may be reserved solely for the US government. Even NASA, which currently counts the Dragon capsule as the only US-made spacecraft capable of getting its astronauts to and from the ISS, has also acknowledged the looming retirement of SpaceX's workhorse vehicles.... Despite the success of Falcon and Dragon, a peek at SpaceX's business book may hint at financial reasons for retiring the vehicles. In its first quarterly earnings report, SpaceX revealed its space segment — which includes Falcon, Dragon and Starship — lost $542 million. By comparison, its Starlink internet and connectivity business made nearly $1.7 billion. Starship is expected to continue to cost SpaceX untold millions as it moves out of the prototyping phase. But one reason SpaceX is willing to bet big on Starship is that it's simply "much better" for achieving the company's own long-term goals, said SpaceX president Gwynne Shotwell at a recent conference. So it makes sense to shift resources toward the megarocket's future.... This rocket supply crunch has been looming since 2022, when Russia invaded Ukraine — which immediately removed Russia's Soyuz and Proton rockets from the commercial market, Henry noted. On top of that, Amazon — which is deploying a space-based internet constellation to rival SpaceX's Starlink — stepped in to buy more than 100 launches from various rocket makers.... Though some satellite manufacturers are hopeful that space onboard future Starship launches will be offered to satellite operators, it's not clear when or if that will happen.... It is possible that a launch supply crunch could be averted, noted Micah Walter-Range, a space analyst and contributor to the VettaFi Space Index. But satellite operators may be wary because newer rockets that have for years promised to step up to compete with the Falcon 9 have not yet begun flying with any regularity. "The space industry hates uncertainty, particularly when it comes to planning of launches," Walter-Range said. The article notes that Rocket Lab, Firefly Aerospace, United Launch Alliance, and the Jeff Bezos-founded Blue Origin "have not yet reached the scale or launch cadence that the industry is demanding." Read more of this story at Slashdot.

  • President Trump Doxxes Senator's Cellphone in Push For Permanent Daylight Saving Time
    by EditorDavid on 03/10/2026 at 10:15 pm

    U.S. President Donald Trump "doxxed" a U.S. senator today, writes the Washington Sun, by posting his cell phone number "as part of a plea for his Truth Social followers to badger his Republican ally into making daylight saving time permanent." When The Washington Sun called the number minutes after Trump's post, a recording said the mailbox was full and could not receive messages... [Senator Tom] Cotton has long detested the idea of making daylight saving time permanent. In a Senate floor speech last year, Cotton said doing so would "make winter a dark and dismal time for millions of Americans," particularly harming kids. The Senate was only able to unanimously pass the bill in 2022 because Cotton was reportedly unaware the vote was taking place, though the measure stalled out from there. The Arkansas Republican didn't back down in a post on Saturday. "Arkansans don't want their kids going to school in the pitch dark, and I'll always put Arkansas first," he posted on X. Trump continued his tear against Cotton soon after. "If Tom Cotton were putting Arkansas first, he would give them an extra hour of daylight and, more importantly, they wouldn't have to run all over their houses, farms, work places, and everywhere else, twice a year, having to change their Clocks, and often forgetting to do so," he posted on Truth. 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