New study could hold key to hack-proof systems

New study could hold key to hack-proof systems
Credit: IQOQI Vienna/Harald Ritsch

Major data breaches have made worldwide headlines of late but an international consortium of scientists—including a professor from Heriot-Watt—have developed a new technique that could result in hack-proof systems.

The researchers have focussed on a complex quantum property known as , which is a vital ingredient in the quest to protect sensitive data.

In a new paper published today in Nature Physics, the team of scientists from Austria, the Czech Republic, and the UK, reveal a more advanced and noise-robust way to measure the entanglement of high-dimensional quantum systems.

Entangled particles of light behave in an identical manner, irrespective of how far apart they may be. Measurements made on a pair of entangled light particles would always result in correlated outcomes, even if they were physically on different planets. The outcomes of these measurements represent different quantum levels, which can be used as a "quantum alphabet" for encoding information.

As such, entangled states can be used to generate shared strings of random information across large distances, which form an essential part of data encryption. Any attempts to hack this communication would destroy the sensitive entanglement between the two particles and reveal the presence of the attacker.

Titled "Measurements in two bases are sufficient for certifying high-dimensional entanglement," the research has been led by the Institute of Quantum Optics and Quantum Information (IQOQI) in Vienna.

Professor Mehul Malik from Heriot-Watt's School of Engineering and Physical Sciences, who led the experimental aspect of this new research, said on the discovery: "The most surprising thing about our method is that it requires only two measurements to work, irrespective of how large or complex the may be!"

Applying their newly developed technique to photons entangled in their spatial structure, the group was able to conclude the structure of entanglement can be unveiled and proven to be truly high-dimensional. They achieved a world record for the highest unconditional dimensionality of entanglement in an experiment of this kind—nine dimensions.

The group is currently looking into a more direct use of this technique in actual quantum cryptography protocols, and expect their to be widely applied in other systems such as atoms and superconducting circuits.


Explore further

Researchers create a quantum entanglement between two physically separated ultra-cold atomic clouds

More information: Jessica Bavaresco et al. Measurements in two bases are sufficient for certifying high-dimensional entanglement, Nature Physics (2018). DOI: 10.1038/s41567-018-0203-z
Journal information: Nature Physics

Citation: New study could hold key to hack-proof systems (2018, July 17) retrieved 22 April 2019 from https://phys.org/news/2018-07-key-hack-proof.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
189 shares

Feedback to editors

User comments

Jul 17, 2018
Hackproof except if you're hillary with a server in your bathroom with a few dozen top secret memos on it.

Or John Podesta, former White House chief of staff and the chairman of Hillary Clinton's 2016 U.S. presidential campaign, and are too stupid to avoid clicking on phishing links in emails.

Their entanglement means something else entirely. I mean, perhaps hillary was using that server to actively communicate with foreign players? Isnt that the most OBVIOUS explanation?

That sort of surreptitious communication was common in ww2 among supposed 'enemies'. Every german spy who was landed on British beaches was turned and employed by their intelligence. A high ranking Soviet spy played chess with FDR at the white house. Bonhoeffer had free rein to carry communiques between axis and allies. Etc.

An engineered war as complex as that one requires constant coordination.

Intelligence organizations are the safest and most secure tools for communicating with the 'enemy'.

Jul 17, 2018
Hackproof except if you're hillary with a server in your bathroom with a few dozen top secret memos on it.

..as opposed to now having a Russian spy as president who delivers everything wholesale to Putin? That seems so much better.

Not.

Jul 17, 2018
I wonder how much of this garbage aa makes up for himself and how much he gets from euro junk news sources?

No matter - garbage is garbage. You know, like the garbage 'pee dossier' hillary paid that Russian $1.02 million for, $168,000 of which was paid to Orbis by Fusion GPS and used by them to produce the dossier...?

It's funny - Assange and Wikileaks are heroes for hacking the dems. But Putin is a villain?

I guess it depends on the context (of the garbage)

Oh hey - Rush Limbaugh just came on. Gotta go-

Jul 17, 2018
One thing before I go - for to be explaining this perhaps maybe?

"GERMANY may has shown solidarity with the UK over the poisoning of Russian former double agent Sergei Skripal and his daughter, by expelling four Russian diplomats. However, just a day later the country also agreed to giving Russia's energy giant Gazprom the green light to build a €9.5billion Nord Stream 2 pipeline through its waters.

"The pipeline itself will transport 55billion cubic meters of gas a year from Russia to Germany under the Baltic Sea."

-Or some 70% of total german consumption?

Is this somewhat like hillary selling 40% of US uranium to our mutual russkyi friends?
https://www.rushlimbaugh.com

-iss good guy. You like.

Jul 17, 2018
Politics Hour I see

Jul 17, 2018
Since you brought it up, Trump and Pence have done the exact same thing as Hillary and Bush did, but you aren't complaining about their email security for some reason.

So Ghost, since you're so obviously partisan, why don't you tell everyone why Trump's betrayed the USA in favor of Putin?

Jul 17, 2018
He didn't. No matter what you guys say. But THE DEMS DID.

"nine months after an F.B.I. agent had first contacted the Democratic National Committee with evidence that a major, government-linked hacking group was inside the committee's networks, raising the question of why it took so long for that news to reach the president.

"Not until September, when Mr. Obama pulled Mr. Putin aside at a Group of 20 meeting in Hanghzhou, China, was the Russian leader given a warning directly from the United States. Mr. Obama said he told him "to cut it out, there were going to be serious consequences if he did not."

"The president made it sound like that worked, saying "we did not see further tampering of the election process." But the leaks of D.N.C. emails, and those of John D. Podesta, the Clinton campaign manager, continued, because they were already in the hands of WikiLeaks, which doled them out to an eager news media until the last days of the campaign."

Explain THAT.

Jul 17, 2018
One should not be surprised by the treasonous activities of the altright fairytails. Quislings, Copperheads, Secessionists, Nightriders, Klanners, Nazis one and all. Their predecessors were traitors 160 years ago, Their successors will be traitors 160 years from now.

Just the normal ebb and flow of American Society. They have no loyalty, no honor, no civic virtue, no morals or ethics. Just empty shells of the detritus of society.

The crude remnants of the Peculiar Institution and it's centuries of mass rape and pillaging of other peoples productivity. Cause they couldn't produce anything more useful than head lice, chiggers and tapeworms.

Pimp Putin and his whore trump have unleashed the altright zombie apocalypse on behalf of the Global Fascist Axis, The Thule Society must be feeling very smug right now.

Jul 17, 2018
Hey there little troll. Still desperately baiting the rabble I see. A mans got to eat.

"Psychopaths view any social exchange as a "feeding opportunity," a contest or a test of wills in which there can be only one winner. Their motives are to manipulate and take, ruthlessly and without remorse. [Hare]"

How's that workin out for ya? Feeling a little ruthless and remorseless this evening are we? A little chardonnay, a silk robe, pink flip flops...


Jul 18, 2018
Maybe Ghost hasn't heard Trump's lies because his head is too far up his own ass.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more