Dave Knott shares a report from the New York Times: On Wednesday, the Association for Computing Machinery, the world's largest society of computing professionals, said Drs. Charles Bennett and Gilles Brassard had won this year's Turing Award for their work on quantum cryptography and related technologies. The Turing Award, which was introduced in 1966, is often called the Nobel Prize of computing, and it includes a $1 million prize, which the two scientists will share. [...] The two met in 1979 while swimming in the Atlantic just off the north shore of Puerto Rico. They were taking a break while attending an academic conference in San Juan. Dr. Bennett swam up to Dr. Brassard and suggested they use quantum mechanics to create a bank note that could never be forged. Collaborating between Montreal and New York, they applied Dr. Bennett's idea to subway tokens rather than bank notes. In a research paper published in 1983, they showed that their quantum subway tokens could never be forged, even if someone managed to steal the subway turnstile housing the elaborate hardware needed to read them. This led to quantum cryptography. After describing their new form of encryption in a research paper published in 1984, they demonstrated the technology with a physical experiment five years later. Called BB84, their system used photons -- particles of light -- to create encryption keys used to lock and unlock digital data. Thanks to the laws of quantum mechanics, the behavior of a photon changes if someone looks at it. This means that if anyone tries to steal the keys, he or she will leave a telltale sign of the attempted theft -- a bit like breaking the seal on an aspirin bottle.

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Meta plans to remove end-to-end encryption (E2EE) from Instagram direct messages by May 8, 2026. "Very few people were opting in to end-to-end encrypted messaging in DMs, so we're removing this option from Instagram in the coming months," says Meta. "Anyone who wants to keep messaging with end-to-end encryption can easily do that on WhatsApp." The Hacker News reports: The American company first began testing E2EE for Instagram direct messages in 2021 as part of CEO Mark Zuckerberg's "privacy-focused vision for social networking." The feature is currently "only available in some areas" and is not enabled by default. Weeks into the Russo-Ukrainian war in February 2022, the company made encrypted direct messaging available to all adult users in both countries. Last week, TikTok said it would not introduce E2EE, arguing it makes users less safe by preventing police and safety teams from being able to read direct messages if needed.

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A Swiss e-voting pilot was suspended after officials couldn't decrypt 2,048 ballots because the USB keys needed to unlock them failed. "Three USB sticks were used, all with the correct code, but none of them worked," spokesperson Marco Greiner told the Swiss Broadcasting Corporation's Swissinfo service. The canton government says it "deeply regrets" the incident and has launched an investigation with authorities. The Register reports: Basel-Stadt announced the problem with its e-voting pilot, open to about 10,300 locals living abroad and 30 people with disabilities, last Friday afternoon. It encouraged participants to deliver a paper vote to the town hall or use a polling station but admitted this would not be possible for many. By the close of polling on Sunday, its e-voting system had collected 2,048 votes, but Basel-Stadt officials were not able to decrypt them with the hardware provided, despite the involvement of IT experts. [...] The votes made up less than 4 percent of those cast in Basel-Stadt and would not have changed any results, but the canton is delaying confirmation of voting figures until March 21 and suspending its e-voting pilot until the end of December, while its public prosecutor's office has started criminal proceedings. The country's Federal Chancellery said e-voting in three other cantons -- Thurgau, Graubunden, and St Gallen -- along with the nationally used Swiss Post e-voting system, had not been affected.

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An anonymous reader quotes a report from IEEE Spectrum: Worried that your latest ask to a cloud-based AI reveals a bit too much about you? Want to know your genetic risk of disease without revealing it to the services that compute the answer? There is a way to do computing on encrypted data without ever having it decrypted. It's called fully homomorphic encryption, or FHE. But there's a rather large catch. It can take thousands -- even tens of thousands -- of times longer to compute on today's CPUs and GPUs than simply working with the decrypted data. So universities, startups, and at least one processor giant have been working on specialized chips that could close that gap. Last month at the IEEE International Solid-State Circuits Conference (ISSCC) in San Francisco, Intel demonstrated its answer, Heracles, which sped up FHE computing tasks as much as 5,000-fold compared to a top-of the-line Intel server CPU. Startups are racing to beat Intel and each other to commercialization. But Sanu Mathew, who leads security circuits research at Intel, believes the CPU giant has a big lead, because its chip can do more computing than any other FHE accelerator yet built. "Heracles is the first hardware that works at scale," he says. The scale is measurable both physically and in compute performance. While other FHE research chips have been in the range of 10 square millimeters or less, Heracles is about 20 times that size and is built using Intel's most advanced, 3-nanometer FinFET technology. And it's flanked inside a liquid-cooled package by two 24-gigabyte high-bandwidth memory chips—a configuration usually seen only in GPUs for training AI. In terms of scaling compute performance, Heracles showed muscle in live demonstrations at ISSCC. At its heart the demo was a simple private query to a secure server. It simulated a request by a voter to make sure that her ballot had been registered correctly. The state, in this case, has an encrypted database of voters and their votes. To maintain her privacy, the voter would not want to have her ballot information decrypted at any point; so using FHE, she encrypts her ID and vote and sends it to the government database. There, without decrypting it, the system determines if it is a match and returns an encrypted answer, which she then decrypts on her side. On an Intel Xeon server CPU, the process took 15 milliseconds. Heracles did it in 14 microseconds. While that difference isn't something a single human would notice, verifying 100 million voter ballots adds up to more than 17 days of CPU work versus a mere 23 minutes on Heracles.

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An anonymous reader quotes a report from the BBC: TikTok will not introduce end-to-end encryption (E2EE) -- the controversial privacy feature used by nearly all its rivals -- arguing it makes users less safe. E2EE means only the sender and recipient of a direct message can view its contents, making it the most secure form of communication available to the general public. Platforms such as Facebook, Instagram, Messenger and X have embraced it because they say their priority is maximizing user privacy. But critics have said E2EE makes it harder to stop harmful content spreading online, because it means tech firms and law enforcement have no way of viewing any material sent in direct messages. The situation is made more complex because TikTok has long faced accusations that ties to the Chinese state may put users' data at risk. TikTok has consistently denied this, but earlier this year the social media firm's US operations were separated from its global business on the orders of US lawmakers. TikTok told the BBC it believed end-to-end encryption prevented police and safety teams from being able to read direct messages if they needed to. It confirmed its approach to the BBC in a briefing about security at its London office, saying it wanted to protect users, especially young people from harm. It described this stance as a deliberate decision to set itself apart from rivals. "Grooming and harassment risks are very real in DMs [direct messages] so TikTok now can credibly argue that it's prioritizing 'proactive safety' over 'privacy absolutism' which is a pretty powerful soundbite," said social media industry analyst Matt Navarra. But Navarra said the move also "puts TikTok out of step with global privacy expectations" and might reinforce wariness for some about its ownership.

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