You don't need new math. You uncurious, unread, ignoramus.
https://en.wikipedia.org/wiki/Post-quantum_cryptography
Quote:
...While the quantum Grover's algorithm does speed up attacks against symmetric ciphers, doubling the key size can effectively block these attacks. Thus post-quantum symmetric cryptography does not need to differ significantly from current symmetric cryptography....
Open Quantum Safe (OQS) project was started in late 2016 and has the goal of developing and prototyping quantum-resistant cryptography. It aims to integrate current post-quantum schemes in one library: liboqs
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Quantum computing is a bogeyman, like most things people don't understand. MSM needs clicks and quantum computing ticks 3 boxes: future, technology, and 'bad.'