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Quantum Cryptography

2008-10-21 06:48:49 by schneier in Schneier on Security
 
Quantum cryptography is back in the news, and the basic idea is still unbelievably cool, in theory, and nearly useless in real life The idea behind quantum crypto is that two people communicating using a quantum channel can be absolutely sure no one is eavesdropping. Heisenberg's uncertainty principle requires anyone measuring a quantum system...
 
Tags: cryptography, quantum cryptography, quantum, quantum-key distribution network, quantum channel, quantum system, quantum-key distribution technique, quantum feed, quantum crypto
 
 
 
 
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Quantum Cryptography: As Awesome As It Is Pointless

2008-10-16 04:00:00 by Bruce Schneier in Wired Security
 
Quantum cryptography is back in the news, and the basic idea is still unbelievably cool, in theory, and nearly useless in real life The idea behind quantum crypto is that two people communicating using a quantum channel can be absolutely sure no one is eavesdropping. Heisenberg's uncertainty principle requires anyone measuring a quantum system...
 
Tags: quantum, quantum cryptography, cryptography, quantum-key distribution technique, quantum-key distribution network, quantum crypto, security, quantum channel, computer security
 
 
 
 
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Quantum Computing: Hype vs. Reality

2008-03-23 06:29:26 by schneier in Schneier on Security
 
...quantum computing and its effects on cryptography: To factor a 4096-bit number, you need 72*4096^3 or 4,947,802,324,992 quantum gates. Lets just round that up to an even 5 trillion. Five trillion is a big number. We're only now getting to the point that we can put about that many normal bits on a disk drive. The first thing this tells me is...
 
Tags: quantum, white-box taiwanese special, normal bits, future potential, trillion, disk drive, blog post, effects, round
 
 
 
 
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Errors in Quantum Cryptography?

2008-04-21 13:02:00 by Manu Namboodiri in Data Protection, Management and Leakage
 
...quantum cryptography, the holy grail of 100%, bullet-proof encryption The researcher quotes - "We didn't expect to find a flaw". Makes one wonder if there is any technology that can claim it I think there are no foolproof solutions, only fools (maybe too strong a word, but the rhyming was too good to pass up!) who believe so
 
Tags: quantum cryptography, foolproof solutions, flaw, apparently researchers, researcher quotes, bullet-proof encryption, holy grail, unexpectedly, research
 
 
 
 
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Beating the codebreakers with quantum cryptography

2008-04-29 12:30:35 by Editor in Digg / Security
 
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
 
Tags: codebreakers, quantum cryptography, cryptography, arms race, codebreakers breed, race, finish line, win, time
 
 
 
 
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Discovery slashes quantum cryptography costs

2008-06-03 00:00:00 by HASH0x8472e44 in Network World on Security
 
Researchers at the U.S. National Institute of Standards and Technology (NIST) have demonstrated a technique that could make quantum cryptography significantly cheaper to implement, moving it nearer to possible commercial acceptance
 
Tags: commercial acceptance, national institute, nearer, implement, technique, researchers, standards, technology, nist
 
 
 
 
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Cambridge lab sets quantum key world record

2008-10-08 00:00:00 by HASH0x8472bd4 in Network World on Security
 
The hugely promising security technology of Quantum Key Distribution (QKD) has moved an important step closer to commercialization with the announcement by U.K.-based researchers that they can now shift encryption keys around at speeds of 1Mbps
 
Tags: shift encryption keys, quantum key distribution, step closer, security technology, 1mbps, moved, researchers, speeds, qkd
 
 
 
 
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For a Safe Night's Sleep

2008-04-01 13:10:54 by schneier in Schneier on Security
 
...Quantum Sleeper Unit is a high-level security system designed for maximum protection in various hostile environments Quantum Sleepers can also be fitted to provide protection from destructive forces of nature such as tornados, hurricanes, earthquakes and floods The Quantum Sleeper is the ultimate in protection, entertainment and...
 
Tags: protection, quantum sleeper unit, quantum sleeper, provide protection, high-level security system, maximum protection, hostile environments, quantum sleepers, destructive forces
 
 
 
 
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Gallery: Images From the 16th Annual DefCon

The Article has images
2008-08-11 18:30:00 by Dave Bullock in Wired Security
...quantum encryption in a conference room at DefCon. The quantum-entangled photons are being used to encrypt a video stream across a line-of-site network. : Photo: Dave Bullock/Wired.com A compact optical bench and an atomic clock (left) are used to secure a network with quantum encryption. : Photo: Dave Bullock/Wired.com In the Lock Pick...
 
Tags: defcon, 16th annual defcon, defcon founder, attendees wave, attendees, defcon organizers, defcon attendees dustin, photo, dave
 
 
 
 
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Lasers Could Send World's Most Secure Messages Through Space

2008-08-27 15:40:02 by Editor in Digg / Security
 
New experiments using Heisenberg's uncertainty principle extend the range of quant