According to a source in the area who I consider to be reliable,
Dominic Mayers's impossibility theorem applies, and this result is
therefore incorrect. I'd thus encourage people to check the paper
thoroughly before relying on its results. I haven't done so myself
because I suspect much of the quantum math is beyond me.
> From: [EMAIL PROTECTED]
> Date: Mon, 26 Jun 2000 13:53:53 -0600
>
> Today on http://xxx.lanl.gov/list/quant-ph/new
>
> quant-ph/0006109 [abs, src, ps, other] :
>
> Title: Unconditionally Secure Quantum Bit Commitment Is Possible
> Authors: Horace P. Yuen
> Comments: 12 pages
>
> Bit commitment involves the submission of evidence from one party
> to another so that the evidence can be used to confirm a later revealed
> bit value by the first party, while the second party cannot determine
> the bit value from the evidence alone. An unconditionally secure bit
> commitment protocol utilizing quantum states is presented. A proper
> formulation brings out the general condition for successful cheating.
>
> Problems in previous proofs on the general impossibility of quantum
> bit commitment are indicated. (10kb)
> --
> Mike Stay
> Programmer / Crypto guy
> AccessData Corp.
> [EMAIL PROTECTED]
>
>
