Quantum Scientists Have Built a New Math of Cryptography | Quanta Magazine
In theory, quantum physics can bypass the hard mathematical problems at the root of modern encryption. A new proof shows how.
Hasnain says:
“With their new result, Khurana and Tomer have effectively reduced two open problems to one. If researchers complete the proof that quantum computers truly surpass classical ones at a specific task, that will automatically put quantum cryptography on much stronger theoretical footing than practically any kind of classical cryptography.
Alas, you won’t be able to use Khurana and Tomer’s new approach to send secret messages any time soon. Despite recent progress, quantum computing technology is not yet mature enough to put their ideas into practice. Meanwhile, other researchers have devised quantum cryptography methods that could be used sooner (opens a new tab), though more work will be needed to establish that they’re truly secure.”