News tagged with cryptography theory
Japanese researchers succeed in quantum cryptographic key distribution from single-photon emitter at 50 km
Institute for Nano Quantum Information Electronics, The University of Tokyo, Fujitsu, and NEC Corp. today announced that they have achieved quantum cryptographic key distribution at a world-record distance ...
Sep 10, 2010 |
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Making quantum cryptography practical
Quantum cryptography, a completely secure means of communication, is much closer to being used practically as researchers from Toshiba and Cambridge University's Cavendish Laboratory have now developed high speed detectors ...
Apr 30, 2009 |
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Search results for cryptography theory
Thwarting the cleverest attackers
In the last 10 years, cryptography researchers have demonstrated that even the most secure-seeming computer is shockingly vulnerable to attack. The time it takes a computer to store data in memory, fluctuations in its power ...
Technology / Computer Sciences
May 01, 2012 |
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Algorithmic incentives: New twist on 30 year-old work could lead to better ways of structuring contracts
In 1993, MIT cryptography researchers Shafi Goldwasser and Silvio Micali shared in the first Gödel Prize for theoretical computer science for their work on interactive proofs — a type of mathematic ...
Apr 25, 2012 |
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Quantum strategy offers game-winning advantages, even without entanglement
(PhysOrg.com) -- Quantum correlations have well-known advantages in areas such as communication, computing, and cryptography, and recently physicists have discovered that they may help players competing in ...
Mar 13, 2012 |
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Twists to quantum technique for secret messaging give unanticipated power
Quantum cryptography is the ultimate secret message service. Now new research, presented at the 2012 AAAS Annual Meeting, shows it can counter even the ultimate paranoid scenario: when the equipment or even the operator is ...
Feb 19, 2012 |
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Quantum physicists shed new light on relation between entanglement and nonlocality
(PhysOrg.com) -- New research from the University of Bristol may disprove a long-standing conjecture made by one of the founders of quantum information science: that quantum states featuring ‘positive partial transpose’, ...
Jan 30, 2012 |
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Sony's 'CLEFIA' encryption technology adopted as an international standard
Sony Corporation has been working to standardize ‘CLEFIA,’ the block cipher algorithm it developed and presented as a state-of-the-art cryptography technique in 2007, and announced today that after final ISO/IEC ...
Jan 26, 2012 |
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Fake violations of Bell tests reinforce importance of closing loopholes
(PhysOrg.com) -- In quantum mechanics, Bell’s inequalities serve as a test of nonclassical behavior: if something (such as a light source) violates Bell’s inequalities, then it can be considered to involve quantum ...
Nov 08, 2011 |
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A switch that lets one photon alter the quantum state of another
Quantum computers are largely theoretical devices that would exploit the weird properties of matter at extremely small scales to perform calculations, in some cases much more rapidly than conventional computers ...
Sep 09, 2011 |
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Making quantum cryptography truly secure
Quantum key distribution (QKD) is an advanced tool for secure computer-based interactions, providing confidential communication between two remote parties by enabling them to construct a shared secret key ...
Jun 14, 2011 |
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Quantum physics first: Researchers observe single photons in two-slit interferometer experiment
Quantum mechanics is famous for saying that a tree falling in a forest when there's no one there doesn't make a sound. Quantum mechanics also says that if anyone is listening, it interferes with and changes the tree. And ...
Jun 02, 2011 |
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List of search results for cryptography theory
