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Re: Kid Gloves or Megaphones
E. ALLEN SMITH wrote:
>
> From: IN%"[email protected]" 21-MAR-1996 21:29:06.87
>
> >It is true that the issuer is unable to discover that double blinding is
> >being used. The real problem with the protocol is that it requires
> >payor/payee collusion, which may make it difficult to execute.
>
> Can the payee discover that the payor isn't colluding before the bank
> can figure out who the payee is?
> -Allen
Of course. With the modified protocol the payor has no choice in the matter.
It's a case of giving the payor a blinded unsigned coin and demanding he get the bank
to sign it - if he doesn't do this the payee will notice immediately.
Even with payor and bank collusion there is nothing that can be done to identify
the payee.
Gary
--
pub 1024/C001D00D 1996/01/22 Gary Howland <[email protected]>
Key fingerprint = 0C FB 60 61 4D 3B 24 7D 1C 89 1D BE 1F EE 09 06