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Comment Re:AES crypto attacks (Score 2) 32

The attack is against 7-round AES. As I read the abstract, they claim to optimise an attack from 2013.

Cryptanalysis of 7-Round AES via the Algebraic Structure of its S-box

Milad Nasr and Nicholas Carlini

The AES S-Box is not a random permutation; we show that its algebraic structure allows for improved attacks on 7 rounds in the single-key setting. We focus
our efforts on extending a 2105 chosen plaintext and 299-time algorithm designed by Derbez, Fouque, and Jean [DFJ13]. Our core contribution is an algebraic Möbius bridge that exploits the invert-then-affine-transform structure of the AES S-box to eliminate one of the nine guessed key bytes required by [DFJ13]. This immediately leads to a factor-of-256 reduction in the number of key guesses required. But calculating the necessary Möbius Transform is not free, and the work required to perform the naïve calculation cancels the savings. We therefore present several improvements that reduce the time required to calculate this transform; depending on the exact methods used for accounting, we reduce the attack’s runtime to between 289.3 and 291.4, at the same data complexity. This paper presents these improvements along with the computational techniques we used to help us empirically gain confidence in the correctness of our findings, something that was particularly important because these improvements were discovered autonomously via a large language model fully end to end. We conclude by remarking on the future of LLM-assisted research in cryptography and computer security more generally.

Comment Re:Bullshit. (Score 1) 118

Consumers don't recycle: they place items in the recycling bins, with or without various preliminary steps to clean and separate said items. Some of the items may, due to lack of cleaning or separation, affect the viability of recycling others of the items. The goal of public policy should be to encourage a mindset and habits which facilitate the recycling of the items which can be viably recycled (where "viably" ideally takes into account all externalities), not to encourage thoughtless mixing of non-recyclable waste into recyclable waste.

Comment Booking.com (Score 4, Interesting) 54

I got a phishing message in the last week from a WhatsApp business account claiming to be the hotel company that I'm going to be staying with in a couple of days. They wanted me to do some kind of confirmation process and warned that if I didn't do it within 24 hours I might lose the reservation. There were a couple of things that were odd, but it's not the first time that a hotel company has made me jump through hoops to do a pre-check-in. It was only when I saw that the link they sent me (which I opened in a private browsing session, of course) was to a page which had a booking.com header but wasn't a booking.com URL that I got suspicious, and they had a UI for card details with no clear explanation of what they wanted them for. At that point I opened the actual booking.com and sent a message to the hotel to double-check, and after sending that message I remembered reading a few months ago that booking.com had a data leak, but I bet the phishers who wrote to me have had some successes.

Comment Kessler syndrome anyone? (Score 2) 47

I think the Kessler syndrome should be renamed the Bezos-Musk syndrome because with all the Starklink satellites in orbit and with the addition of the Amazon ones it will increase the likelihood of.a satellite collision that will cascade and cause more collisions, so much so that orbital debris will prevent us from launching any more satellites or humans getting into orbit for decades or even centuries.

Comment Re:Full Circle (Score 1) 108

The Spanish Wikipedia article does say that some comms took three days to restore, because after the power came back the configurations of some devices, I presume routers, had been lost. Specifically it cites newspaper articles about remote assistance buttons, but the journalists either didn't understand the technical details or didn't want to explain in detail. So the misunderstanding is probably that it took a few days for everything to get back to normal, even though the actual blackout lasted 18 hours or less. (It was about 10 hours for me, but I'm in a major city).

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