Cryptography

Large language models such as ChatGPT come with filters to keep certain info from getting out. A new mathematical argument shows that systems like this can never be completely safe.

In theory, quantum physics can bypass the hard mathematical problems at the root of modern encryption. A new proof shows how.

Randomness is essential to some research, but it’s always been prohibitively complicated. Now, we can use “pseudorandomness” instead.

It’s been difficult to find important questions that quantum computers can answer faster than classical machines, but a new algorithm appears to do it for some critical optimization tasks.

Researchers got a better look at the thoughts of chatbots, amateurs learned exactly how complicated simple systems can be, and quantum computers passed an essential milestone.

The security system that underlies the internet makes use of a curious fact: You can broadcast part of your encryption to make your information much more secure.

Two mathematicians have renewed a debate about the fundamental nature of some of math’s most important equations.

Three researchers have figured out how to craft a proof that spreads out information while keeping it perfectly secret.

Long explored but infrequently embraced, base 3 computing may yet find a home in cybersecurity.