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6 March 2014 1:04 pm ,
Vol. 343 ,
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
- 6 March 2014 1:04 pm , Vol. 343 , #6175
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A Censor-Proof Internet?
7 July 2000 4:30 pm
It's not hard to track down the computer hosting a Web page; the domain name can be enough. But computer scientists at AT&T and New York University have now devised a way to blur a document's origin, using a 20-year-old encryption protocol invented by cryptographer Adi Shamir. Called Publius after the pen name of the authors of the Federalist Papers, the system works by encrypting a document a number of different ways that can't be decoded individually. Instead, the meaning becomes clear only after several versions are combined. Publius will send coded copies of a sensitive document to a large number of different servers. Each copy looks like nonsense, even to the person who runs the server. To read a Publius-encrypted file, a computer combs the Web for a few encrypted copies and combines them to reconstruct the original. "There's no central place where everything is stored," says co-inventor Avi Rubin of AT&T.
A 2-month test of the service will be conducted beginning 28 July, and the community seems eager to help. "We've got a lot more volunteers than we can use," says Rubin.