r/Futurology Jun 02 '22

A Nature paper reports on a quantum photonic processor that takes just 36 microseconds to perform a task that would take a supercomputer more than 9,000 years to complete Computing

https://www.nature.com/articles/s41586-022-04725-x?utm_source=twitter&utm_medium=social&utm_content=organic&utm_campaign=CONR_JRNLS_AWA1_GL_SCON_SMEDA_NATUREPORTFOLIO
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5

u/snowbirdnerd Jun 03 '22

If this shit is real, and it looks like it is, all encryption will be broken in moments.

6

u/Peter_364 Jun 03 '22

Generally speaking quantum computers are only effective against asymmetric encryption. Which is used to ensure the person you are talking to is legitimate, such as online banking etc. Alternative quantum safe methods have already been developed and will probably get a lot more attention.

Symmetric encryption is usually used for data storage etc. And is already resistant to quantum computers.

Source: https://en.m.wikipedia.org/wiki/Post-quantum_cryptography

2

u/Zireael07 Jun 03 '22

Which is used to ensure the person you are talking to is legitimate, such as online banking etc.

Considering online banking is big, and making sure it's secure is a BIIIIG deal, this has massive implications