Articles about quantum cryptography

quantum_satellite

European Space Agency wants in on quantum comms satellites

The European Space Agency is looking to build a communications satellite to send data securely using quantum key distribution. On Thursday, it signed a contract with SES Techcom S.A, a satellite communications company based in Luxembourg, to develop QUARTZ (Quantum Cryptography Telecommunication System). Quantum entanglement …

China's 'future-proof' crypto: We talk to firm behind crazy quantum key distribution network

Two hundred local government employees across the capital of China's eastern Shandong province will soon be encrypting messages with keys that are "impossible" to crack. QuantumCTek, headquartered in the humid, subtropical city of Hefei in eastern China, will next month launch a commercial network for creating and sharing …
Andrew Silver, 19 Jul 2017

Boffins invent wacky quantum gizmo prototype for secure mobile payments

A “quantum gadget” prototype capable of sending quantum keys using polarized light could make contactless payments on mobile more secure if it can be squeezed into a smartphone. The rise of contactless cards and apps such as Apple Pay and Android Pay have made it easier to make payments. Although swiping a card or smartphone …
Katyanna Quach, 28 Mar 2017
Stamos Tabriz fireside chat

Human memory, or the lack of it, is the biggest security bug on the 'net

Usenix Enigma 2017 The life of the security IT professional would be a lot easier if people were capable of remembering enough passwords so that they didn't need to reuse them. That was the considered opinion of Facebook’s head of security Alex Stamos and Google’s security princess (her actual Chocolate Factory job title) and Enigma 2017 …
Iain Thomson, 31 Jan 2017
SMAP water scanning satellite

Boffins send encrypted quantum messages to spaaaace – and back

It may be possible to send quantum-encrypted messages through space, after physicists showed a beam of light sent to a satellite could return to Earth with its quantum properties intact, according to new research published in Physical Review Letters. Quantum cryptography relies on the properties of quantum mechanics to encode …

NIST readies 'post-quantum' crypto competition

Your mission, should you choose to accept it, is to help the National Institute of Standards and Technology (NIST) defend cryptography against the onslaught of quantum computers. It hasn't happened yet, but it's pretty widely agreed that quantum computers pose a significant risk to cryptography. All that's needed is either a …
The two Wicked Lasers fired up

Turbo-charged quantum crypto? You'll need Cambridge laser boffins for that

Boffins hope to turbo-charge the speed of “unbreakable” quantum cryptographic systems with a new technique involving “seeding” one laser beam inside another. Researchers from the University of Cambridge and Toshiba Research Europe have used the technique to demonstrate that it might be possible to distribute encryption keys at …
John Leyden, 6 Apr 2016
Random numbers

GCHQ boffins quantum-busted its own crypto primitive

While the application of quantum computers to cracking cryptography is still, for now, a futuristic scenario, crypto researchers are already taking that future seriously. It came as a surprise to Vulture South to find that in October of this year, researchers at GCHQ's information security arm the CESG abandoned work on a …

Quantum key security steps outside the box

US researchers have come a step closer to turning quantum key distribution (QKD) into a “black box” that can be made provably secure regardless of whose boxes sit at each end of a link. In creating a quantum crypto implementation, researchers rely on models of the systems they've created as proofs of their security. That means …
Random numbers

Boffins: How to generate crypto-keys using a smartphone – and quantum physics

Your smartphone can be used to generate cryptographic keys from truly random numbers "of a quantum origin", according to bods at the University of Geneva. The Swiss research claims, quite simply, that illuminating the camera of a device like the Nokia N9 can cause quantum effects, which ultimately can be used to generate …

China ALSO building encryption-cracking quantum computer

It’s not just the NSA that’s said to be working on a quantum computer – China is also pulling out all the stops to beat its arch rival with a crypto-cracking machine of its own. The National Natural Science Foundation of China funded 90 quantum-based projects in 2013, with the order from Beijing to get the job done …
Phil Muncaster, 10 Jan 2014

Snowden docs: NSA building encryption-cracking quantum computer

The latest document stash from whistle-blower Edward Snowden shows that the NSA has budgeted $79.7m for the development of a quantum computer capable of "owning the net." "The Owning the Net (OTN) Project provides the technological means for NSA/CSS to gain access to and securely return high value target communications," one …
Iain Thomson, 3 Jan 2014

Quantum crypto pitches for data centre links

The quantum crypto business is hardly crowded, but ID Quantique is hoping to set itself apart with a 100 Gbps-capable unit. This is hardly consumer kit, however: the target market for the QKD-plus-crypto-engine kit is outfits running multiple high capacity links, either at 1 Gbps or 10 Gbps. Think of inter-data-centre …
Quantum-classical bit commitment setup

Quantum-classical crypto sends secret vote from Switzerland to Singapore

Quatum cryptography is already useful in protecting “good” parties against interference from an evil outside world, but until now, it hasn't protected a “good” Bob from an “evil” Alice, or vice-versa. According to the pre-press version of the paper at Arxiv, now published in Physical Review Letters, that can be overcome by …
The Register breaking news

Boffins confirm quantum crypto can keep a secret

Over recent years, the gap between theoretical security of quantum crytography and practical implementation has provided plenty of fun for super-geniuses the world over. Yes, quantum cryptography is supposed to be unbreakable. After all, if anybody even observes the state of a qubit that Alice has prepared, entangled with …
The Register breaking news

Quantum crypto nearly ready to go mobile

While the world is still waiting for a full-blown quantum communications setup, quantum key distribution – QKD – is already a contested product market. Now, an international collaboration has shown that QKD can be brought to the smartphone. The project, carried out by the University of Bristol, Cambridge, Griffith University …

'Quantum network? We've had one for years,' says Los Alamos

The boffins at the Los Alamos National Laboratory are known as a secretive lot; a much understated lot, in fact. Rather than cause a fuss, researchers there have quietly published a paper showing they've had a flexible quantum network – something rather a lot of people are interested in – up and running for two and a half years …
Iain Thomson, 7 May 2013
The Register breaking news

Quantum crypto still not proven, claim Cambridge experts

Two killjoy researchers from the University of Cambridge have cast doubt on whether quantum cryptography can be regarded as ‘provably secure’ – and are asking whether today’s quantum computing experimentation is demonstrating classical rather than quantum effects. Computer scientists Ross Anderson and Robert Brady have …

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