Re: Ecash without a mint

[bram]

On Mon, 20 Sep 1999, Adam Back wrote:

> - is the ZK proof interactive?  If so this would place communication
>   restrictions on spending -- payer and payee would need to be
>   simultaneously online.

Interactive ZK proofs can be made non-interactive by generating an
encoding of the information offered by the prover, and using the bits of
the secure hash of that as the challenges by the provee.

-Bram