Archive for the ‘encryption’ category: Page 25

Feb 24, 2020

Why Quantum Computing Gets Special Attention In The Trump Administration’s Budget Proposal

Posted by in categories: computing, encryption, quantum physics

Competition between the U.S. and China in quantum computing revolves, in part, around the role such a system could play in breaking the encryption that makes things secure on the internet.

Truly useful quantum computing applications could be as much as a decade away, Aaronson says. Initially, these tools would be highly specialized.

“The way I put it is that we’re now entering the very, very early, vacuum-tube era of quantum computers,” he says.

Feb 21, 2020

Scientists Create a 5-atom Quantum Computer That Could Make Today’s Encryption Obsolete

Posted by in categories: computing, encryption, quantum physics

Circa 2016

MIT scientists have developed a 5-atom quantum computer, one that is able to render traditional encryption obsolete.

Feb 20, 2020

Mixed-signal hardware security thwarts powerful electromagnetic attacks

Posted by in categories: encryption, information science, internet, security

Security of embedded devices is essential in today’s internet-connected world. Security is typically guaranteed mathematically using a small secret key to encrypt the private messages.

When these computationally secure encryption algorithms are implemented on a physical hardware, they leak critical side-channel information in the form of power consumption or electromagnetic radiation. Now, Purdue University innovators have developed technology to kill the problem at the source itself—tackling physical-layer vulnerabilities with physical-layer solutions.

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Feb 17, 2020

Compromised encryption machines gave CIA window into major human rights abuses in South America

Posted by in category: encryption

The countries running “Operation Condor,” a campaign of assassinations in the 1970s, used devices made by Crypto AG, a company owned by the agency and West German intelligence.

Feb 8, 2020

Scientists create prototype quantum hard drive

Posted by in categories: computing, encryption, quantum physics

O.o circa 2015.

Researchers from the Australian National University (ANU) and the University of Otago in New Zealand have created a prototype quantum hard drive that may fundamentally alter the realm of secure, long-distance data encryption. Using atoms of the rare-earth element europium embedded in yttrium orthosilicate (YSO) crystals, the scientists have shattered previous records for quantum information retention by creating a storage device capable of holding quantum state information for up to six hours at a time.

Quantum data encryption already offers the promise of intrinsically secure electronic data interchange over relatively short distances (up to around 100 km (62 mi) or so). However, this latest research may help enable a worldwide quantum-encrypted communications network by providing unprecedented storage capabilities and effectively negating the instability problems inherent in currently available technology.

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Feb 4, 2020

India bets big on quantum technology

Posted by in categories: biotech/medical, computing, encryption, quantum physics

Overall, India’s science ministry, which oversees the department of science and technology; biotechnology; and scientific and industrial research, received 144 billion rupees in the 2020–21 budget, a 10.8% increase over promised funds in the 2019–20 budget.

Latest budget includes more than a billion dollars in funding for quantum computing, communications and cryptography.

Jan 2, 2020

Remote connections? Detangling entanglement in quantum physics

Posted by in categories: computing, encryption, quantum physics

Quantum computers, quantum cryptography and quantum (insert name here) are often in the news these days. Articles about them inevitably refer to entanglement, a property of quantum physics that makes all these magical devices possible.

Einstein called entanglement “spooky action at a distance,” a name that has stuck and become increasingly popular. Beyond just building better quantum computers, understanding and harnessing entanglement is also useful in other ways.

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Dec 25, 2019

The ‘Quantum Computing’ Decade Is Coming—Here’s Why You Should Care

Posted by in categories: computing, encryption, internet, mathematics, quantum physics

The ability to process qubits is what allows a quantum computer to perform functions a binary computer simply cannot, like computations involving 500-digit numbers. To do so quickly and on demand might allow for highly efficient traffic flow. It could also render current encryption keys mere speedbumps for a computer able to replicate them in an instant. #QuantumComputing

Multiply 1,048,589 by 1,048,601, and you’ll get 1,099,551,473,989. Does this blow your mind? It should, maybe! That 13-digit prime number is the largest-ever prime number to be factored by a quantum computer, one of a series of quantum computing-related breakthroughs (or at least claimed breakthroughs) achieved over the last few months of the decade.

An IBM computer factored this very large prime number about two months after Google announced that it had achieved “quantum supremacy”—a clunky term for the claim, disputed by its rivals including IBM as well as others, that Google has a quantum machine that performed some math normal computers simply cannot.

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Dec 21, 2019

Scientists Develop ‘Absolutely Unbreakable’ Encryption Chip Using Chaos Theory

Posted by in categories: computing, encryption

Could a cryptographic system rooted in chaos theory herald an age of “absolutely unbreakable” encryption?

Dec 16, 2019

How to use entanglement for long-distance or free-space quantum communication

Posted by in categories: encryption, internet, quantum physics

Entanglement, once called “spooky action at a distance” by Einstein, is the phenomenon in which the quantum states of separated particles cannot be described independently. This puzzling phenomenon is widely exploited in the quantum physicist’s toolbox, and is a key resource for applications in secure quantum communication over long distances and quantum cryptography protocols. Unfortunately, entangled particles are easily disturbed by their surroundings, and their entanglement is readily diminished by the slightest interaction with the environment.

In a recent study published in the journal Physical Review X, an international team of physicists from Austria, Scotland, Canada, Finland and Germany have demonstrated how quantum can be strengthened to overcome particle loss or very high levels of noise, which are inevitable in real-life applications outside the laboratory. This strengthening is accomplished by departing from commonly used two-level quantum bits, or qubits. Qubits are bi-dimensional systems, the quantum analogue to the classical bit, with values zero or one. In this study, the researchers instead employed entanglement of systems with more than two levels. By entangling particles of light through their spatial and temporal properties, scientists have now observed the survival of quantum entanglement under harsh environmental conditions for the first time.

When it comes to distributing particles of light outside of a protected laboratory, the environmental conditions are identical to the tested ones. Therefore, the experiment is not only a proof-of-principle implementation, but is ready for long-distance quantum communication under real-world conditions. This new method could hence prove helpful for distributing entanglement in a future quantum internet.

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