The hunt for quantum-proof Internet security

Imagine the tap of a card that bought you a cup of coffee this morning also let a hacker halfway across the world access your bank account and buy themselves whatever they liked. Now imagine it wasn’t a one-off glitch, but it happened all the time: imagine the locks that secure our electronic data suddenly stopped working.

As the advent of quantum computers grows closer, cryptographers are trying to devise new mathematical schemes to secure data against their hypothetical attacks. The mathematics involved is highly complex — but the survival of our digital world may depend on it.The task of cracking much current online security boils down to the mathematical problem of finding two numbers that, when multiplied together, produce a third number.

Most lattice-based cryptography is based on a seemingly simple question: if you hide a secret point in such a lattice, how long will it take someone else to find the secret location starting from some other point? This game of hide and seek can underpin many ways to make data more secure. The lattice problem — like the problem of finding the factors of a large number on which so much current encryption depends — is closely related to a deep open problem in mathematics called the “

Source: Tech Daily Report (techdailyreport.net)

Quantum Computing Security

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