Sometime between now and 2030, the mathematical system that protects all of digital communications may fall victim to a superior quantum system. Preparing for that time may require us to reinvent the network itself.
“The quantum threat is basically going to destroy the security of networks as we know them today,” declared Bruno Huttner, who directs strategic quantum initiatives for Geneva, Switzerland-based ID Quantique. No other commercial organization since the turn of the century has been more directly involved in the development of science and working theories for the future quantum computer network.
Quantum computers offer great promise for cryptography and optimization problems. ZDNet explores what quantum computers will and won’t be able to do, and the challenges we still face.
One class of theory involves cryptographic security. The moment a quantum computer (QC) breaks through the dam currently held in place by public-key cryptography (PKC), every encrypted message in the world will become vulnerable. That’s Huttner’s “quantum threat”.