Experiment confirms plan for quantum-coded messages
Scheme allows sending lots of secret data with short decoding key
![quantum lock](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/08/081916_lh_quantum-data-lock_free.jpg?fit=860%2C460&ssl=1)
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.
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