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Which way is up?

1 October 2004

The quantum world is there to exploit. But before we truly harness its power, there's one small problem to solve

Twisting the light away

11 June 2004

A novel trick with light has got physicists in a spin. Pitch your photon like a corkscrewing curveball and you can push bandwidth through the roof, flummox eavesdroppers and perhaps even talk to aliens.

Quantum key makes video spy-proof

14 May 2004

Encryption can now be performed fast enough to secure moving pictures

The secret is out

29 November 2003

Claims that quantum cryptography is uncrackable are like a red rag to a bull for hackers. And against all expectations, they're discovering its weak spots. Mark Kendall Anderson reports

The trial of little owl

6 September 2002

Their secret's safe

24 May 2002

At last Bob and Alice can exchange messages without worrying about eavesdroppers

Your secret's safe

5 January 2002

The writing's on the screen

26 October 2001

The inexorable rise of the e-book is finally putting the printed word in its place, says Karlin Lillington. It's text Jim, but not as we know it

The key to freedom

20 July 2001

Who cares about encryption? Caspar Bowden does, and he thinks everyone else should too. A former investment banker, he has made it his mission to help people protect their electronic privacy. He stresses he is not a campaigner, yet as direc

To catch a wave

14 July 2000

Who needs a giant detector when you've got quantum encryption