A key post-quantum algorithm may be vulnerable to side-channel attacks

As companies and governments around the world work on creating usable quantum computers, security researchers are also devising ways to protect data once those machines are available.

Quantum computers have the potential to crack the cryptographic algorithms in use today, which is why “post-quantum” cryptographic algorithms are designed to be so strong that they can survive huge leaps in computing power. 

A team in Sweden, however, says it’s possible to attack some of the new algorithms with other methods. …

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