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A Nice Little Cryptography Primer

By itss | 28/06/2021
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Pun Intended.

Category: Technology
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  • Info to Decipher Secret Message in Kryptos Sculpture at CIA HQ Auctioned for Nearly $1M
    by EditorDavid on 30/11/2025 at 9:34 pm

    An anonymous reader shared this report from the Associated Press: The information needed to decipher the last remaining unsolved secret message embedded within a sculpture at CIA headquarters in Virginia sold at auction for nearly $1 million, the auction house announced Friday. The winner will get a private meeting with the 80-year-old artist to go over the codes and charts in hopes of continuing what he's been doing for decades: interacting with would-be cryptanalyst sleuths. The archive owned by the artist who created Kryptos, Jim Sanborn, was sold to an anonymous bidder for $963,000, according to RR Auction of Boston. The archive includes documents and coding charts for the sculpture, dedicated in 1990. Three of the messages on the 10-foot-tall (3-meter) sculpture — known as K1, K2 and K3 — have been solved, but a solution for the fourth, K-4, has frustrated the experts and enthusiasts who have tried to decipher the S-shaped copper screen... One side has a series of staggered alphabets that are key to decoding the four encrypted messages on the other side. "The purchaser's 'long-term stewardship plan' is being developed, according to the auction house." Read more of this story at Slashdot.

  • Morgan Stanley Warns Oracle Credit Protection Nearing Record High
    by EditorDavid on 30/11/2025 at 7:35 pm

    A gauge of risk on Oracle debt "reached a three-year high in November," reports Bloomberg. "And things are only going to get worse in 2026 unless the database giant is able to assuage investor anxiety about a massive artificial intelligence spending spree, according to Morgan Stanley." A funding gap, swelling balance sheet and obsolescence risk are just some of the hazards Oracle is facing, according to Lindsay Tyler and David Hamburger, credit analysts at the brokerage. The cost of insuring Oracle's debt against default over the next five years rose to 1.25 percentage point a year on Tuesday, according to ICE Data Services. The price on the five-year credit default swaps is at risk of toppling a record set in 2008 as concerns over the company's borrowing binge to finance its AI ambitions continue to spur heavy hedging by banks and investors, they warned in a note Wednesday. The CDS could break through 1.5 percentage point in the near term and could approach 2 percentage points if communication around its financing strategy remains limited as the new year progresses, the analysts wrote. Oracle CDS hit a record 1.98 percentage point in 2008, ICE Data Services shows... "Over the past two months, it has become more apparent that reported construction loans in the works, for sites where Oracle is the future tenant, may be an even greater driver of hedging of late and going forward," wrote the analysts... Concerns have also started to weigh on Oracle's stock, which the analysts said may incentivize management to outline a financing plan on the upcoming earnings call... Thanks to Slashdot reader Bruce66423 for sharing the article. Read more of this story at Slashdot.

  • What Happens When You Kick Millions of Teens Off Social Media? Australia's About to Find Out
    by EditorDavid on 30/11/2025 at 6:34 pm

    27 million people live in Australia. But there's a big change coming if you're under 16, reports CNN: From December 10, sites that meet the Australian government's definition of an "age-restricted social media platform" will need to show that they're doing enough to eject or block children under 16 or face fines of up to 49.5 million Australian dollars ($32 million). The list includes Snapchat, Facebook, Instagram, Kick, Reddit, Threads, TikTok, Twitch, X, and YouTube... Meta says it'll start deactivating accounts and blocking new Facebook, Instagram and Threads accounts from December 4. Under-16s are being encouraged to download their content. Snap says users can deactivate their accounts for up to three years, or until they turn 16... There's another sting in the ban, too, coming at the end of the Australian school year before the summer break in the southern hemisphere. For eight weeks, there'll be no school, no teachers — and no scrolling. For millions of children, it could be the first school break they spend in years without the company of time-killing social media algorithms, or an easy way to contact their friends. Even for parents who support the ban, it could be a very long summer. "There's every chance that bans will spread..." the article argues. "Other countries around the world are taking notes as Australia explores new territory that some say mirrors safety evolutions of years past — the dawning realization that maybe cars need safety belts, and that perhaps cigarettes should come with some kind of health warning." And according to the Associated Press, Malaysia "has also announced plans to ban social media accounts for children under 16 starting in 2026." But CNN reports few teenagers in Australia knew about its impending ban on social media, judging by a show of hands at one high school auditorium. Teenagers in the audience had two questions. "Can you get your account back when you turn 16?" "What if I lie about my age?" Read more of this story at Slashdot.

  • Amazon Tells Its Engineers: Use Our AI Coding Tool 'Kiro'
    by EditorDavid on 30/11/2025 at 5:34 pm

    "Amazon suggested its engineers eschew AI code generation tools from third-party companies in favor of its own ," reports Reuters, "a move to bolster its proprietary Kiro service, which it released in July, according to an internal memo viewed by Reuters." In the memo, posted to Amazon's internal news site, the company said, "While we continue to support existing tools in use today, we do not plan to support additional third party, AI development tools. "As part of our builder community, you all play a critical role shaping these products and we use your feedback to aggressively improve them," according to the memo. The guidance would seem to preclude Amazon employees from using other popular software coding tools like OpenAI's Codex, Anthropic's Claude Code, and those from startup Cursor. That is despite Amazon having invested about $8 billion into Anthropic and reaching a seven-year $38 billion deal with OpenAI to sell it cloud-computing services..."To make these experiences truly exceptional, we need your help," according to the memo, which was signed by Peter DeSantis, senior vice president of AWS utility computing, and Dave Treadwell, senior vice president of eCommerce Foundation. "We're making Kiro our recommended AI-native development tool for Amazon...." In October, Amazon revised its internal guidance for OpenAI's Codex to "Do Not Use" following a roughly six month assessment, according to a memo reviewed by Reuters. And Claude Code was briefly designated as "Do Not Use," before that was reversed following a reporter inquiry at the time. The article adds that Amazon "has been fighting a reputation that it is trailing competitors in development of AI tools as rivals like OpenAI and Google speed ahead..." Read more of this story at Slashdot.

  • Is OpenAI Preparing to Bring Ads to ChatGPT?
    by EditorDavid on 30/11/2025 at 4:34 pm

    "OpenAI is now internally testing 'ads' inside ChatGPT," reports BleepingComputer: Up until now, the ChatGPT experience has been completelyfree. While there are premium plans and models, you don't see GPT sell you products or show ads. On the other hand, Google Search has ads that influence your buying behaviour. OpenAI is planning to replicate a similar experience. As spotted [by software engineer Tibor Blaho] on X.com,ChatGPT Android app 1.2025.329 beta includes new references to an "ads feature" with "bazaar content", "search ad" and "search ads carousel." This move could disrupt the web economy,as what most people don't understand is that GPT likely knows more about users than Google. For example, OpenAI could create personalised ads on ChatGPT that promote products that you really want to buy... The leak suggests that ads will initially be limited to the search experience only, but this may change in the future. Read more of this story at Slashdot.

  • AI Can Already Do the Work of 12% of America's Workforce, Researchers Find
    by EditorDavid on 30/11/2025 at 3:34 pm

    An anonymous reader shared this report from CBS News: Artificial intelligence can do the work currently performed by nearly 12% of America's workforce, according to a recentstudy from the Massachusetts Institute of Technology. The researchers, relying on a metric called the "Iceberg Index" that measures a job's potential to be automated, conclude that AI already has the cognitive and technical capacity to handle a range of tasks in technology, finance, health care and professional services. The index simulated how more than 150 million U.S. workers across nearly 1,000 occupations interact and overlap with AI's abilities... AI is also already doingsome of the entry-level jobsthat have historically been reserved for recent college graduates or relatively inexperienced workers, the report notes. "AI systems now generate more than a billion lines of code each day, prompting companies to restructure hiring pipelines and reduce demand for entry-level programmers," the researchers wrote. "These observable changes in technology occupations signal a broader reorganization of work that extends beyond software development." "The study doesn't seek to shed light on how many workers AI may already have displaced or could supplant in the future," the article points out. "To what extent such tools take over job functions performed by people depends on a number of factors, including individual businesses' strategy, societal acceptance and possible policy interventions, the researchers note." Read more of this story at Slashdot.

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