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

# Articles tagged computer security

### A Tricky Path to Quantum-Safe Encryption

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

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.

### Perfecting the Art of Sensible Nonsense

In a watershed moment for cryptography, computer scientists have proposed a solution to a fundamental problem called “program obfuscation.”

### Privacy by the Numbers: A New Approach to Safeguarding Data

A mathematical technique called “differential privacy” gives researchers access to vast repositories of personal data while meeting a high standard for privacy protection.