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cryptography

Latest Articles

cryptography

How Do You Prove a Secret?

By Sheon Han
October 11, 2022
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Zero-knowledge proofs allow researchers to prove their knowledge without divulging the knowledge itself.

A spacecraft, laptop, QR code and CD
information theory

How Mathematical Curves Enable Advanced Communication

By Jordana Cepelewicz
September 19, 2022
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A simple geometric idea has been used to power advances in information theory, cryptography and even blockchain technology.

cryptography

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

By Jordana Cepelewicz
August 24, 2022
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Two researchers have broken an encryption protocol that many saw as a promising defense against the power of quantum computing.

Five mountain landscapes on floating scrolls representing possible cryptographic worlds.
cryptography

Which Computational Universe Do We Live In?

By Erica Klarreich
April 18, 2022
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Cryptographers want to know which of five possible worlds we inhabit, which will reveal whether truly secure cryptography is even possible.

Illustration of a figure standing between broken orange walls and a blue unbreakable wall with a broken sledgehammer beside it
computational complexity

Researchers Identify ‘Master Problem’ Underlying All Cryptography

By Erica Klarreich
April 6, 2022
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The existence of secure cryptography depends on one of the oldest questions in computational complexity.

cryptography

Cryptographers Achieve Perfect Secrecy With Imperfect Devices

By Mordechai Rorvig
February 25, 2022
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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 security

Computer Scientists Achieve ‘Crown Jewel’ of Cryptography

By Erica Klarreich
November 10, 2020
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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.

Photo of Ronald Rivest sitting in his office
Q&A

Cryptography Pioneer Seeks Secure Elections the Low-Tech Way

By Susan D'Agostino
March 12, 2020
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Ronald Rivest helped come up with the RSA algorithm, which safeguards online commerce. Now he’s hoping to make democratic elections more trustworthy.

Art for "Cryptography That Can’t Be Hacked"
computer security

Cryptography That Is Provably Secure

By Kevin Hartnett
April 2, 2019
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Researchers have just released hacker-proof cryptographic code — programs with the same level of invincibility as a mathematical proof.


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