An oblivious transfer protocol for quantum cryptography: related news

An oblivious transfer protocol for quantum cryptography

It's hard to beat the noise that you have with quantum information,” Barbara Terhal tells PhysOrg.com. “So our security protocol relies on the fact that storing quantum bits noiselessly is hard to do with current technology.”

Improving quantum dot synthesis

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Beating the codebreakers with quantum cryptography

28 April 2008 Quantum cryptography may be essentially solved, but getting the funky physics to work on disciplined computer networks is a whole new headache. Cryptography is an arms race, but the finish line may be fast approaching. Up to now, each time the codemakers made a better mousetrap, codebreakers breed a better mouse. But quantum cryptography theoretically could outpace the codebreakers and win the race. Forever. Already the current state of the art in classical encryption, 128-bit RSA, can be cracked with enough raw, brute force computing power available to organisations like the US National Security Agency. And the advent of quantum computing will make it even simpler. The gold standard for secret communication will be truly dead.

How To Build a Quantum Eavesdropper

KentuckyFC writes "Quantum encryption is perfectly secure, in theory. In practice, however, there are loopholes. Now Japanese scientists have designed a quantum eavesdropper that exploits one of these loopholes to listen in to quantum conversations. QC's security arises from the impossibility of making a perfect copy of a quantum object without destroying it — so the sender and receiver can always tell if they've been overheard. But it turns out that an eavesdropper can make imperfect copies and use them to extract information from a quantum message without alerting sender or receiver (abstract). The Japanese design does just this. That should worry banks and government agencies that have begun to use some of the commercial quantum encryption systems now available.

Intermittent Electron Transfer Activity From Single CdSe/ZnS Quantum Dots

Electron transfer activity from excited single CdSe/ZnS core/shell quantum dots (QDs) to adsorbed Fluorescein 27 was studied by single QD fluorescence spectroscopy. In comparison with QDs, the QD-acceptor complexes showed a shorter average and broader distribution of QD emission lifetimes due to electron transfer to adsorbates. Large fluctuation of lifetimes in single QD/dye complexes was observed, indicating intermittent electron transfer activity from QDs.

Siemens builds a lock made of light: Data transfer using quantum cryptography

(PhysOrg.com) -- Electronic communication is becoming more secure all over the world. Siemens IT Solutions and Services, Austrian Research Centers (ARC) and Graz University of Technology have joined forces to develop the first quantum cryptography chip for commercial use. The chip, which protects data by generating a completely random sequence of numbers from particles of light, replaces the currently used system of key distribution based on mathematical algorithms.

Theorists Make Quantum Communications Breakthrough

KentuckyFC writes "One of the cornerstones of modern physics is Claude Shannon's theory of communication, which he published in 1948. If you've ever made a phone call, watched TV, or used a computer, you've got Shannon to thank for describing how information can be moved from one place in the universe to another using an idea called the channel capacity. But nobody has been able to develop a quantum version of this theory. So physicists have no idea how much quantum information can be sent from one point to another. Now two American physicists have made an important breakthrough by proving that two quantum channels with zero capacity can carry information when used together. That's interesting because it indicates that physicists may have been barking up the wrong tree with this problem: it implies that the quantum capacity of a channel d

Lenogo iPod/iPod Touch/iPhone to PC Transfer I 3.6

Lenogo iPod/iPod Touch/iPhone to PC Transfer I is an best ultimate application for transferring songs and videos from an iPod/iPod Touch/iPhone to PC. With Lenogo iPod/iPod Touch/iPhone to PC Transfer, iPod/iPod Touch/iPhone users can transfer songs and videos to PC easily. Lenogo iPod/iPod Touch/iPhone to PC Transfer is fully compatible with all existing iPod/iPod Touch/iPhone including iPod(1st, 2nd, 3rd, 4th, and 5th generation iPod), iPod Photo, iPod mini, iPod shuffle, iPod nano, iPod touch, iPod video and iPhone.

Advanced TFTP Server Setup in Ubuntu Linux

"Advance Trivial file transfer protocol client,atftp is the user interface to the Internet ATFTP (Advanced Trivial File Transfer Protocol), which allows users to transfer files to and from a remote machine. The remote host may be specified on the command line, in which case atftp uses host as the default host for future transfers."

Quantum "Uncollapse" Muddies Definition Of Reality

Quantum theory says that quantum particles have wave-like properties and can exist in many places at once. Why the objects we see around us every day — in what physicists call the classical world — don't behave this way despite being made of these very same quantum particles is a deep and fundamental question in modern physics.

Quantum Computing Breakthrough Arises From Unknown Molecule

The odd behavior of a molecule in an experimental silicon computer chip has led to a discovery that opens the door to quantum computing in semiconductors. In a Nature Physics journal paper currently online, the researchers describe how they have created a new, hybrid molecule in which its quantum state can be intentionally manipulated--a required step in the building of quantum computers. Full story

Quantum of Solace Details from Leipzig

James Bond is back to settle the score in the Quantum of Solace videogame. Introducing a more lethal and cunningly efficient Bond, the game blends intense First-Person action with a unique third-person Cover-Combat System that allows players to truly feel what it is like to be the ultimate secret agent as they use their stealth, precision shooting and lethal combat skills to progress through Missions. Seamlessly blending the heart-pounding action and excitement of the upcoming Quantum of Solace feature film with the Casino Royale movie, the title propels players into the cinematic experience of international espionage. Based on the renowned Call of Duty 4: Modern Warfare Engine that has been specifically engineered to immerse players in the Bond universe, the Quantum of Solace videogame delivers superior High-Definition graphics, reactive

Physicists Produce Quantum-Entangled Images

Using a convenient and flexible method for creating twin light beams, researchers at the Joint Quantum Institute (JQI) of the Commerce Department’s National Institute of Standards and Technology (NIST) and the University of Maryland have produced “quantum images,” pairs of information-rich visual patterns whose features are “entangled,” or inextricably linked by the laws of quantum physics.

Physicists tweak quantum force, reducing barrier to tiny devices

A scanning electron micrograph, taken with an electron microscope, shows the comb-like structure of a metal plate at the center of newly published University of Florida research on quantum physics. UF physicists found that corrugating the plate reduced the Casimir force, a quantum force that draws together very close objects. The discovery could prove useful as tiny “microelectromechanical” systems -- so-called MEMS devices that are already used in a wide array of consumer products -- become so small they are affected by quantum forces. Yiliang Bao and Jie Zoue/University of Florida

Lasers Tune Quantum Dots

GAITHERSBURG, Md., Aug. 20, 2008 – In what could be a key development in cryptography applications, researchers from the National Institute of Standards and Technology (NIST) and the Joint Quantum Institute (JQI), a collaborative center of the University of Maryland and NIST, have found a way to reduce light scattering from quantum dots by manipulating them with lasers.

Siemens builds locks made of light: Data transfer using quantum cryptography

Nanopositioning Systems Catalog Offers Precision Motion Control Solutions for all High-Tech Industries

Introduction to IP Storage: Overview, Methods and Advantages of the iSCSI (Internet SCSI) Protocol

iSCSI, the acronym for Internet SCSI (Small Computer System Interface), is an Internet Protocol (IP) - based storage networking standard for linking data storage facilities developed by the Internet Engineering Task Force (IETF). Designed to carry SCSI commands over IP networks, iSCSI is used to facilitate data transfer over networks and manage storage needs over long distances. The iSCSI protocol is one of the key technologies expected to continue to push the rapid development of the Storage Area Network (SAN) market, by increasing the capabilities and performance of storage data transmission, while contributing to the declining cost and expense of storage technologies. Previously, SAN implementations required Fibre Channel (FC) technology and its costly infrastructure of training, support, and proprietary components.

Introduction to IP Storage: Overview, Methods and Advantages of the iSCSI (Internet SCSI) Protocol

iSCSI, the acronym for Internet SCSI (Small Computer System Interface), is an Internet Protocol (IP) - based storage networking standard for linking data storage facilities developed by the Internet Engineering Task Force (IETF). Designed to carry SCSI commands over IP networks, iSCSI is used to facilitate data transfer over networks and manage storage needs over long distances. The iSCSI protocol is one of the key technologies expected to continue to push the rapid development of the Storage Area Network (SAN) market, by increasing the capabilities and performance of storage data transmission, while contributing to the declining cost and expense of storage technologies. Previously, SAN implementations required Fibre Channel (FC) technology and its costly infrastructure of training, support, and proprietary components.

Quantum trapdoor

Quantum cryptography, touted as invulnerable to eavesdropping, may not be 100 per cent secure in practice, writes Saswato R Das

EXCLUSIVE: First James Bond: Quantum of Solace screenshot (007: Quantum of Solace)

It's been awhile since news spread about Treyarch developing the next James Bond game, and we've been waiting patiently to see the master spy back in action. At last we have the first sighting of the elusive man of action in Quantum of Solace, the game based on the next Bond feature. Here it is:

Google Open-sources its Internal Data Exchange Language

IconGoogle has open-sourced its protocol buffers, the company's lingua franca for encoding various types of data, in order to set the stage for a wave of new releases, according to official company blog posts and documents reported in this article. "Practically everyone inside Google" uses protocol buffers, states a FAQ page. "We have many other projects we would like to release as open source that use protocol buffers, so to do this, we needed to release protocol buffers first."

Transfer of Escrow Shares of Genius World Investments Limited

RICHMOND (Marketwire) - Further to disclosure requirements of applicable securities laws, Sheng Wang reports that on July 9, 2008, pursuant to a transfer of common escrow shares ("Common Shares") Sheng Wang, President, CEO & CFO acquired beneficial ownership of 800,000 Common Shares of Genius World Investments Limited (the "Company") from Dongdong Huang pursuant to a Share Purchase Agreement dated May 28, 2008, representing 20% of the issued and outstanding Common Shares of the Company. The TSX Venture Exchange Inc. consented to the transfer of escrow shares on June 11, 2008.

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