Experiment confirms plan for quantum-coded messages

Scheme allows sending lots of secret data with short decoding key

quantum lock

SECRET SAVER   Sending an encrypted message usually requires a secret key that’s at least as long as the message itself. But thanks to the laws of quantum mechanics, it’s possible to protect long secret messages with much shorter keys, a new experiment shows.


This article is only available to Science News subscribers.

Subscribers, enter your e-mail address to access our archives.

Not a subscriber?

Science News is a nonprofit.

Support us by subscribing now.

More Stories from Science News on Quantum Physics

From the Nature Index

Paid Content