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!


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