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Cryptography

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New Entanglement Results Hint at Better Quantum Codes

October 24, 2022

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

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The Computer Scientist Who’s Boosting Privacy on the Internet

October 18, 2022

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

How Do You Prove a Secret?

October 11, 2022

Zero-knowledge proofs allow researchers to prove their knowledge without divulging the knowledge itself.

How Mathematical Curves Enable Advanced Communication

September 19, 2022

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

‘Post-Quantum’ Cryptography Scheme Is Cracked on a Laptop

August 24, 2022

Two researchers have broken an encryption protocol that many saw as a promising defense against the power of quantum computing.

Which Computational Universe Do We Live In?

April 18, 2022

Cryptographers want to know which of five possible worlds we inhabit, which will reveal whether truly secure cryptography is even possible.

Researchers Identify ‘Master Problem’ Underlying All Cryptography

April 6, 2022

The existence of secure cryptography depends on one of the oldest questions in computational complexity.

Cryptographers Achieve Perfect Secrecy With Imperfect Devices

February 25, 2022

For the first time, experiments demonstrate the possibility of sharing secrets with perfect privacy — even when the devices used to share them cannot be trusted.

Computer Scientists Achieve ‘Crown Jewel’ of Cryptography

November 10, 2020

A cryptographic master tool called indistinguishability obfuscation has for years seemed too good to be true. Three researchers have figured out that it can work.

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