Featured Research

from universities, journals, and other organizations

Laser security for the Internet: Scientist invents a digital security tool good enough for the CIA -- and for you

Date:
March 24, 2010
Source:
American Friends of Tel Aviv University
Summary:
A new invention promises an information security system that can beat today's hackers -- and the hackers of the future -- with existing fiber optic and computer technology.

A British computer hacker equipped with a "Dummies" guide recently tapped into the Pentagon. As hackers get smarter, computers get more powerful and national security is put at risk. The same goes for your own personal and financial information transmitted by phone, on the Internet or through bank machines.

Now a new invention developed by Dr. Jacob Scheuer of Tel Aviv University's School of Electrical Engineering promises an information security system that can beat today's hackers -- and the hackers of the future -- with existing fiber optic and computer technology. Transmitting binary lock-and-key information in the form of light pulses, his device ensures that a shared key code can be unlocked by the sender and receiver, and absolutely nobody else. He will present his new findings to peers at the next laser and electro-optics conference this May at the Conference for Lasers and Electro-Optics (CLEO) in San Jose, California.

"When the RSA system for digital information security was introduced in the 1970s, the researchers who invented it predicted that their 200-bit key would take a billion years to crack," says Dr. Scheuer. "It was cracked five years ago. But it's still the most secure system for consumers to use today when shopping online or using a bank card. As computers become increasingly powerful, though, the idea of using the RSA system becomes more fragile."

Plugging a leak in a loophole

Dr. Sheuer says the solution lies in a new kind of system to keep prying eyes off secure information. "Rather than developing the lock or the key, we've developed a system which acts as a type of key bearer," he explains.

But how can a secure key be delivered over a non-secure network -- a necessary step to get a message from one user to another? If a hacker sees how a key is being sent through the system, that hacker could be in a position to take the key. Dr. Sheuer has found a way to transmit a binary code (the key bearer) in the form of 1s and 0s, but using light and lasers instead of numbers. "The trick," says Dr. Scheuer, "is for those at either end of the fiber optic link to send different laser signals they can distinguish between, but which look identical to an eavesdropper."

New laser is key

Dr. Scheuer developed his system using a special laser he invented, which can reach over 3,000 miles without any serious parts of the signal being lost. This approach makes it simpler and more reliable than quantum cryptography, a new technology that relies on the quantum properties of photons, explains Dr. Scheuer. With the right investment to test the theory, Dr. Scheuer says it is plausible and highly likely that the system he has built is not limited to any range on earth, even a round-the-world link, for international communications.

"We've already published the theoretical idea and now have developed a preliminary demonstration in my lab. Once both parties have the key they need, they could send information without any chance of detection. We were able to demonstrate that, if it's done right, the system could be absolutely secure. Even with a quantum computer of the future, a hacker couldn't decipher the key," Dr. Scheuer says.


Story Source:

The above story is based on materials provided by American Friends of Tel Aviv University. Note: Materials may be edited for content and length.


Cite This Page:

American Friends of Tel Aviv University. "Laser security for the Internet: Scientist invents a digital security tool good enough for the CIA -- and for you." ScienceDaily. ScienceDaily, 24 March 2010. <www.sciencedaily.com/releases/2010/03/100323121834.htm>.
American Friends of Tel Aviv University. (2010, March 24). Laser security for the Internet: Scientist invents a digital security tool good enough for the CIA -- and for you. ScienceDaily. Retrieved April 20, 2014 from www.sciencedaily.com/releases/2010/03/100323121834.htm
American Friends of Tel Aviv University. "Laser security for the Internet: Scientist invents a digital security tool good enough for the CIA -- and for you." ScienceDaily. www.sciencedaily.com/releases/2010/03/100323121834.htm (accessed April 20, 2014).

Share This



More Computers & Math News

Sunday, April 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Nintendo Changed Gaming World, but Its Future Uncertain: Upstone

Nintendo Changed Gaming World, but Its Future Uncertain: Upstone

AFP (Apr. 19, 2014) The Nintendo Game Boy celebrates its 25th anniversary Monday and game expert Stephen Upstone says the console can be credited with creating a trend towards handheld gaming devices. Duration: 01:21 Video provided by AFP
Powered by NewsLook.com
Why Did Nike Fire Most Of Its Nike FuelBand Team?

Why Did Nike Fire Most Of Its Nike FuelBand Team?

Newsy (Apr. 19, 2014) Nike fired most of its Digital Sport hardware team, the group behind Nike's FuelBand device. Could Apple or an overcrowded market be behind layoffs? Video provided by Newsy
Powered by NewsLook.com
Nearly Two Weeks On, The Internet Copes With Heartbleed

Nearly Two Weeks On, The Internet Copes With Heartbleed

Newsy (Apr. 19, 2014) The Internet is taking important steps in patching the vulnerabilities Heartbleed highlighted, but those preventive measures carry their own costs. Video provided by Newsy
Powered by NewsLook.com
Facebook To Share Nearby Friends Data With Advertisers

Facebook To Share Nearby Friends Data With Advertisers

Newsy (Apr. 19, 2014) A Facebook spokesperson has confirmed the company will use GPS data from the new Nearby Friends feature for advertising sometime in the future. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins