Physicists are building a NSA-proof internet

Stefanie Botelho's picture
Tuesday, April 15, 2014

It’s long been the Holy Grail of communications: technology that not only maximizes privacy, but also reveals when a message had been intercepted or copied.

The quest began in antiquity, with encryption and with the humble envelope — which not only kept out prying eyes but also showed if a message had been opened by someone other than its intended recipient.

More recently, Edward Snowden's revelations of spying by the National Security Agency have heightened concerns over electronic privacy, espionage and meddling.

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