RSA encryption is a major foundation of digital security and is one of the most commonly used forms of encryption, and yet it operates on a brilliantly simple premise: it's easy to multiply two large ...

They use a predictive number generator (a pseudo random number generator) - and both your bank and the RSA device know the number they started with, and what time it started. Basically, all it shows ...

A team of German researchers has managed to factor a 200-digit number, marking the most complex puzzle solved to date in the closely-watched challenge created by RSA Security. In an announcement ...

The first tests of a “factorisation factory” have beaten the record for breaking gigantic numbers down into their prime-number building blocks. It might one day force firms to strengthen their online ...

Digital security depends on the difficulty of factoring large numbers. A new proof shows why one method for breaking digital encryption won’t work. My recent story for Quanta explained a newly proved ...