New super-pure silicon chip opens path to powerful quantum computers

[Jan Panteltje]

New super-pure silicon chip opens path to powerful quantum computers
https://www.sciencedaily.com/releases/2024/05/240507150004.htm

Not one current crypto system will be safe?

[Bill Sloman]

Post by Jan Panteltje
New super-pure silicon chip opens path to powerful quantum computers
https://www.sciencedaily.com/releases/2024/05/240507150004.htm
Not one current crypto system will be safe?

Surely that depends on the nature of the cryptographic scheme?

Anything based on long random numbers should be fine, But distributing
them has always been a problem. Public key encryption with pairs of
really long keys could take a very long time to crack even with quantum
computers.

Every quantum computer has problems with internal random errors, and has
to rely on error detection and correction codes to manage them.

Make your numbers long enough and the quantum computer won't be quick
enough to stay ahead.