pierce@lanai.cs.ucla.edu (Brad Pierce) (12/27/89)
In article <1989Dec22.191422.21564@agate.berkeley.edu> bks@alfa.berkeley.edu (Brad Sherman) writes:
*From _New_Scientist_ 9 December, 1989, pp.25-26 (without permission)
*Byline: David Deutsch
*
* Quantum Communication Thwarts Eavesdroppers
*
*Researchers at IBM's Thomas J. Watson Laboratory in Yorktown Heights,
*New York, have built a device for sending information between two
*parties with absolute security from eavesdropping. The device uses
*a form of coding called "Quantum Public Key Distribution["] (QPKD),
*which exploits quantum effects. It cannot be implemented on any
*existing computer because of the intrinsic limitations of classical
*(that is, non-quantum) information processing.
<< Body of article omitted -- Brad >>
*The lasting significance of QPKD will be for the foundations of
*computer science. The Turing Machine is no longer a universal
*model for practical computations.
-- Brad (an excerpt from the sci.crypt newsgroup)