Re: [fc-discuss] Financial Cryptography Update: On Digital Cash-like Payment Systems

On Thu, Oct 20, 2005 at 05:19:49PM -0400, R.A. Hettinga wrote:

BTW, you can exchange cash for goods, or other chaumian bearer certificates -- or receipts, for that matter, with a simple exchange protocol. Micali did one for email ten years ago, for instance.

Could you give us a reference to this one, please? Thank you in advancne! -- Daniel