information theory

One student’s desire to get out of a final exam led to the ubiquitous algorithm that shrinks data without sacrificing information.

In steganography, an ordinary message masks the presence of a secret communication. Humans can never do it perfectly, but a new study shows it’s possible for machines.

On nights and weekends, Justin Gilmer attacked an old question in pure math using the tools of information theory.

Computer scientists this year learned how to transmit perfect secrets, why transformers seem so good at everything, and how to improve on decades-old algorithms (with a little help from AI).

A team of physicists has entangled three photons over a considerable distance, which could lead to more powerful quantum cryptography.

Harry Halpin wants our internet conversations to be more private. He’s helped create a new kind of network that might make it possible.

A simple geometric idea has been used to power advances in information theory, cryptography and even blockchain technology.

What’s a message, really? Claude Shannon recognized that the elemental ingredient is surprise.

Mark Braverman has spent his career translating thorny problems into the language of information complexity.