From Wired
By Frank Jordans

A new “unbreakable” encryption method will be keep votes safe for citizens in the Swiss canton (state) of Geneva in the country’s upcoming national elections, officials said Thursday.

The city-state will use quantum technology to encrypt election results as they are sent to the capital on Oct. 21, said Nicolas Gisin of the University of Geneva.

A computer in Geneva, provided by the company id Quantique, will fire photons, or particles of light, down a fiber-optic link to a receiver 62 miles away.

If anybody wanted to eavesdrop on the line, they would need to intercept the photons, which means they won’t make it to the destination. The operators of the line will then know that someone is listening in.

“If anyone tries to even read the message it will explode like a soap bubble,” said Gisin, the physics professor who led the team that developed the technology.

Conventional fiber-optic communications uses vast numbers of photons, and pays no attention to their individual quantum properties. It’s possible to eavesdrop on such lines simply by making a bend in the fiber and leaching off some of the light.

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