Search results for cryptography
Quantum communication through synergy
Jan 19, 2009 |
4.4 / 5 (11) |
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(PhysOrg.com) -- When most people think of quantum communication, they think in terms of private communication channels - the ability to send messages without a third-party deciphering them. Indeed, quantum cryptography represents ...
Hackers beware -- new technique uses photons, physics to foil codebreakers
Physics /
Feb 22, 2006 |
4.7 / 5 (41) |
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For governments and corporations in the business of transmitting sensitive data such as banking records or personal information over fibre optic cables, a new system demonstrated by University of Toronto researchers offers ...
Scientists demonstrate all-fiber quantum logic
May 28, 2009 |
4.3 / 5 (13) |
3
A team of physicists and engineers have demonstrated all-fibre quantum logic, where single photons are generated and used to perform the controlled-NOT quantum logic gate in optical fibres with high fidelity.
'Dead time' limits quantum cryptography speeds
Sep 28, 2007 |
4 / 5 (11) |
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Quantum cryptography is potentially the most secure method of sending encrypted information, but does it have a speed limit" According to a new paper by researchers at the National Institute of Standards and Technology and ...
World first for sending data using quantum cryptography
Oct 08, 2008 |
4.4 / 5 (64) |
6
(PhysOrg.com) -- For the first time the transmission of data secured by quantum cryptography is demonstrated within a commercial telecommunications network. 41 partners from 12 European countries, including ...
Safer, better, faster: addressing cryptography’s big challenges
Technology / Computer Sciences
Dec 04, 2008 |
4.3 / 5 (4) |
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(PhysOrg.com) -- Every time you use a credit card, access your bank account online or send secure email cryptography comes into play. But as computers become more powerful, network speeds increase and data storage grows, ...
Scientists demonstrate laser with controlled polarization
Apr 13, 2009 |
3.7 / 5 (15) |
3
Applied scientists at the Harvard School of Engineering and Applied Sciences (SEAS) in collaboration with researchers from Hamamatsu Photonics in Hamamatsu City, Japan, have demonstrated, for the first time, ...
Electrical engineer cracks code to detect media tampering
Technology / Computer Sciences
Apr 01, 2009 |
3.8 / 5 (6) |
6
(PhysOrg.com) -- An NJIT electrical engineer has cracked the code that will enable researchers around the world to detect tampering with electronic images.
Researcher Discovers Method to Fully Process Encrypted Data Without Knowing its Content
Jun 25, 2009 |
4.1 / 5 (17) |
9
(PhysOrg.com) -- An IBM Researcher has solved a thorny mathematical problem that has confounded scientists since the invention of public-key encryption several decades ago. The breakthrough, called "privacy homomorphism," ...
Up-scale: Frequency converter enables ultra-high sensitivity infrared spectrometry
Aug 26, 2009 |
4.9 / 5 (11) |
2
In what may prove to be a major development for scientists in fields ranging from forensics to quantum communications, researchers at the National Institute of Standards and Technology have developed a new, ...
Robust watermarking offers hope against digital piracy
Technology / Computer Sciences
Dec 05, 2008 |
3.8 / 5 (6) |
0
(PhysOrg.com) -- Watermarks have been used for centuries to prove the authenticity of bank notes, postage stamps and documents. Now European researchers are considering them as a new tool in the fight against digital piracy ...
Maximizing Confidence in Quantum Information Decoding
Nov 21, 2006 |
4.6 / 5 (23) |
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When it comes to quantum information processing and cryptography, retrieving information encoded in orthogonal quantum states can, in principle, be done perfectly (although in practice it may be hard to implement). When it ...
JST, NEC Realize Secure Quantum Key Distribution with Quantitative Assurance
Mar 06, 2007 |
4 / 5 (3) |
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Japan Science and Technology Agency and NEC Corporation today announced joint development of the world's first quantum key distribution (QKD) system that guarantees security under actual operating environments.
NEC Succeeds in World's Fastest Continuous Quantum Cryptography Key Generation over Fortnight Period
May 31, 2005 |
2.5 / 5 (2) |
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Realized on network employing commercial optical fiber NEC Corporation, National Institute of Information and Communications Technology, POWEREDCOM, Inc., and Japan Science and Technology Agency have jointly s ...
Record efficiency photon detectors for quantum cryptography
Physics /
Jun 02, 2005 |
1 / 5 (1) |
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Sensors that detect and count single photons, the smallest quantities of light, with 88 percent efficiency have been demonstrated by physicists at the National Institute of Standard and Technology (NIST). ...
