This week has been big for cryptography. It's seen both technical and theoretical advances in next-generation quantum crypto systems and technology. It's seen a prototype enter its testing phase that could send secret crypto keys through open air to a satellite . . .
This week has been big for cryptography. It's seen both technical and theoretical advances in next-generation quantum crypto systems and technology. It's seen a prototype enter its testing phase that could send secret crypto keys through open air to a satellite or across town. And it's seen the announcement of a new breed of laser that could someday form the backbone of secure, long-distance quantum cryptographic communications over fiber-optic lines.

Exploiting the cagey nature of matter at the atomic and subatomic scales, quantum crypto offers to repair what its cousin the quantum computer promises to break.

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