Hello,
I correct a mistake, read again about Symmetric encryption and quantum computers..
Symmetric encryption, or more specifically AES-256, is believed to be quantum resistant. That means that quantum computers are not expected to be able to reduce the attack time enough to be effective if the key sizes are large enough.
Read more here:
Is AES-256 Quantum Resistant?
https://medium.com/@wagslane/is-aes-256-quantum-resistant-d3f776163672
This is why i am using Parallel AES encryption with 256 bit keys in my powerful Parallel Archiver, you can read about it and download it from here:
https://sites.google.com/site/scalable68/parallel-archiver
Thank you,
Aminw Moulay Ramdane.