New quantum process delivers tamper-proof e-messages

May 24th, 2010 - 1:46 pm ICT by IANS  

Sydney, May 24 (IANS) A new quantum communication process can deliver unprecedented security, cutting down risks of sensitive information falling into wrong hands.
The University of New South Wales’ telecommunications researcher Robert Malaney has developed the process called “unconditional location verification”.

It ensures that even if an encryption password has fallen into the wrong hands, a secure message can only be seen by a recipient at an agreed location.

Malaney, associate professor at the university’s School of Electrical Engineering and Telecommunications, said: “This takes communications security to a level that hasn’t previously been available.

“With this process you can send data to a person at a particular location. If they are not at that location, the process would detect that and you can stop the communication,” said Malaney.

“This is a new application that you can deploy on current and emerging quantum networks. It opens up a range of new information security applications for both fibre and wireless communication networks.

“There would be many industries and organisations, banks for example, that would be interested in delivering information content in the sure knowledge a recipient is at an agreed-upon location,” said a statement from the university.

The concept, which also has potential applications in the intelligence community, e-commerce and digital content distribution, appeared in the American Physical Society journal Physical Review A.

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