Hack-proof quantum network unveiled in Japan

As a result of the experiment, the Japanese company Toshiba was able to send quantum information through an optical fiber 600 kilometers long. As a result, a record was set: engineers were able to transmit quantum bits over hundreds of kilometers.

The technology's prospects are obvious: it can form the basis of a new generation data transmission network that allows information to be transmitted over long distances.

The data to be transmitted in this way is encrypted using a special quantum key distribution (QKD) technology. The Japanese company emphasizes that quantum networks are maximally protected from hacking. If a network penetration occurs, then both parties will immediately know about it.

Thus, users, corporations and entire states can share classified information without fear of its leakage to third parties. Previously, it was possible to transmit qubits over fiber optic networks only over extremely short distances.

But the company's specialists in Japan have developed a dual-band stabilization method that allows you to reduce the impact of the external environment. Two signals are sent: the first compensates for rapidly changing fluctuations, and the second helps to fine-tune the phase. As a result, data is transmitted over a distance of up to 600 kilometers.

The technology provided by the Japanese corporation can be used to organize secure communications, including those used for military purposes. In the context of the modern global confrontation between powers, including in the field of information security, increasing the security of transmitted data is very important. It is possible that this technology, after the further stages of development have passed, will be used by the military departments and special services of the countries of the world.

Comments

[Orkraider]

Nothing is eternal. The quantum will also be hacked.

[NIKN]

Eustace - Alex will report in the report what it was about, in a secret transmission, and they just need this technology, but probably so far it has not yet been created in the mobile version.

[Invoce]

Quote: Orkraider

the company's specialists in Japan have developed a dual-band stabilization method that reduces the impact of the external environment. Two signals are sent: the first compensates for rapidly changing fluctuations, and the second helps to fine-tune the phase. As a result, data is transmitted over a distance of up to 600 kilometers.

Quote: Orkraider

Nothing is eternal. The quantum will also be hacked.

I agree. If you create something, you can break it, even steel balls are prone to breakage.
If something is encrypted or protected, then it is 100% likely to be hacked or studied, and then hacked. Hacked in such a way that neither the transmitting nor the receiving party will know. A matter of time and feasibility (resources)

[bk316]

Nothing is eternal. The quantum will also be hacked.

It's not about the complexity of the hack.
The fact is that the technology makes it possible to establish the fact of hacking with a guarantee.

[Finches]

Everything that one person encodes, the other will always be able to decode! True, this is not know-how, the Japanese are carrying something like a blizzard!

[Israel]

Not quite so, modern symmetric ciphers without knowing the key provide high strength and can only be broken by brute force, which, again, in the current realities is impossible due to the required time and energy for this. With asymmetric cryptography, it is about the same, but everything is based on the unsolved mathematical problem NP! = P, and so far, without knowing the private key, resources will be required to crack which simply do not exist now.
But this is all about "pure" mathematics, in practice, the human factor is still added, with the direct implementation of protocols from the hardware to the software level, and many hacks were associated precisely because of errors in the implementation, the most famous is the use of the well-known function rand (random number generator, but with a known and knowing initial value, you can repeat the entire sequence on another computer) to generate a random sequence to use as the encryption key.

[Finches]

This is yes, so do not sweat, but stupidly buy or in some other way recruit a person, a carrier of information!

[Israel]

Either the hackers caught are offered the choice to cooperate with the FBI and give the keys to the encrypted file system on the laptop and get no more than five years in prison, or remain silent and get a minimum of 15 years in prison.

[Finches]

Absolutely true!

[Narak-zempo]

Quote: Israel

in practice, the human factor is still added

That's it.
Rectothermal cryptanalysis does not become obsolete until people are removed from the system.
The only problem is providing specialists with access to the hacked object.

[Israel]

Well, it goes without saying, but it also happens (it was in some applications) when cryptographically strong algorithms are used, but a weak point in key generation, starting from non-cryptographic random number generators or weak (in the sense of fast) algorithms for generating a key from a password. That allowed in certain cases to quickly calculate the key.

[fa2998]

Of course, a RUSSIAN quantum phone was recently shown on TV! We are pioneers! Truth is expensive (millions), and on Ali it is the same, but it costs 100 cheaper (only with a different logo)

[evgen1221]

In the light of the cranks of suspicion in our community to various foreign things, demonic bonding. And where is the guarantee that Toshiba and backdoor did not do it? And in general, the dove is our everything! The Patriarchate with the ROC cross give that the future is behind it))))

[letinant]

In 2020, a quantum network was put into operation between Moscow and St. Petersburg (Rosamtom website). And it works normally. I understand it is longer than 600km?

[vargo]

Yes, there are already a lot of these networks... And yes, Moscow - St. Petersburg was also introduced recently. I see nothing surprising in the Japanese project. At least nothing special is conveyed in the article. It looks more like the author either does not know anything about this, or is deliberately promoting Japanese.

[bk316]

Technology has been around for 10 years.

[vadim dok]

If not difficult, give a link to this significant event!

[bk316]

if not difficult, give a link to this significant event!

Catch about technology.
https://www.photonics.su/files/article_pdf/3/article_3425_13.pdf
Catch about the Moscow-Peter line
https://www.cnews.ru/news/top/2021-06-09_rossiya_perehodit_na_kvantovye

For the future, do not be lazy to use the search.

[APASUS]

The wider the network of applications, the more clients, the more opportunities to study problem areas. It is not necessary to open the network, break something.

[Just a Traveler]

Hack talk .....
Let our fighters of the invisible front first hack Telegram)))))
And the same they run around the courts, shout and demand to give them access for surveillance ...
Giants of technical thought ...

[ccsr]

Quote: Just a Traveler

Let our fighters of the invisible front first hack Telegram)))))
And the same they run around the courts, shout and demand to give them access for surveillance ...

Hacked a long time ago, it just cannot be evidence in court, since it was obtained illegally without the consent of the owner of Telegrams. Not all of our bastards slurp cabbage soup, so do not panic if you misunderstand something.

[spacekitty]

Toto in Russia there is the world's largest Internet platform for drug trafficking with an annual turnover of one and a half billion dollars. They hack well, they just can't prove it in court, right? Or do not want

[ccsr]

Quote: spacekitty

Toto in Russia there is the world's largest Internet platform for drug trafficking with an annual turnover of one and a half billion dollars.

These are American, European and other Middle Eastern drug dealers who use our Internet sites to direct the arrows to Russia. In fact, our police seriously pressed drug dealers, and the current deadlines for them discourage many from doing this business in Russia.

Quote: spacekitty

They hack well, they just can't prove it in court, right?

We take an example from America - there, too, illegally obtained evidence, is also not accepted in court.

Quote: spacekitty

Or don't want

Jelly that they can not.

[spacekitty]

These are American, European and other Middle Eastern drug dealers who use our Internet sites to direct the arrows to Russia.

Those. these are agents of the State Department in the courtyards laying out bookmarks, do I understand you correctly?

[ccsr]

Quote: spacekitty

Those. these are agents of the State Department in the courtyards laying out bookmarks, do I understand you correctly?

Not really - they are ordinary distributors and they use frequently changing phones, as I heard. And on the Internet sites they work on a large scale, and not ordinary hanygs. Well, the largest drug dealer is the American military, who have arranged the supply of drugs from Afghanistan to Europe and Russia. They don't work without the Internet.

[ficus2003]

were able to transfer quantum bits

Why is the speed so low? Who knows?

I noticed that the recently launched Peter-Moscow quantum communication channel in Russia was also very slow (about 1Kb / S).

[KCA]

A neutrino penetrates through any substance with such a weak interaction that detectors of tens or even hundreds of thousands of tons of water installed in the mountains in mines 1 km and deeper are used to register them, "catching" one neutrino is a holiday, although they penetrate the Earth from all sides and the quantity cannot be counted, no supercomputer can operate with such numbers, what do you want to do with them? How to use?

[Gunther]

again, the title of the article does not correspond to the content, it is correct, in my opinion, so - according to the reports of journalists, in Japan, as a result of the experiment, they were allegedly able to send quantum information through an optical fiber 600 kilometers long.)))

[Charik]

Matrix chtoli?

[bk316]

Who cares about this area. Here read, the article is popular science, everything is clear enough. You understand the source - proof.
https://www.photonics.su/files/article_pdf/3/article_3425_13.pdf

Pay attention to the date - 2012.