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computer security

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.

Photo of Ronald Rivest sitting in his office

Cryptography Pioneer Seeks Secure Elections the Low-Tech Way

March 12, 2020

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

April 2, 2019

Researchers have just released hacker-proof cryptographic code — programs with the same level of invincibility as a mathematical proof.

Illustration of lock with polynomials surrounding it
Abstractions blog

Mathematicians Seal Back Door to Breaking RSA Encryption

December 17, 2018

Digital security depends on the difficulty of factoring large numbers. A new proof shows why one method for breaking digital encryption won’t work.

Photo of Urmila Mahadev
quantum computing

Graduate Student Solves Quantum Verification Problem

October 8, 2018

Urmila Mahadev spent eight years in graduate school solving one of the most basic questions in quantum computation: How do you know whether a quantum computer has done anything quantum at all?

Abstractions blog

Why Quantum Computers Might Not Break Cryptography

May 15, 2017

A new paper claims that a common digital security system could be tweaked to withstand attacks even from a powerful quantum computer.

computer security

Hacker-Proof Code Confirmed

September 20, 2016

Computer scientists can prove certain programs to be error-free with the same certainty that mathematicians prove theorems.


A Tricky Path to Quantum-Safe Encryption

September 8, 2015

In the drive to safeguard data from future quantum computers, cryptographers have stumbled upon a thin red line between security and efficiency.


A New Design for Cryptography’s Black Box

September 2, 2015

A recent cryptographic breakthrough has proven difficult to put into practice. But new advances show how near-perfect computer security might be surprisingly close at hand.