-----BEGIN PGP SIGNED MESSAGE----- In article <199605190626.BAA62897@rs5.tcs.tulane.edu>, Matthew Carpenter <mcarpent@mailhost.tcs.tulane.edu> wrote:
My PDA receives back any coins as change if needed, and logs info about the transaction for my financial records.
When I get back home I 'deposit' my change using the same ATM interface. This also removes from my home computer the copies of the coins I spent, and automatically updates the transaction records on my PC.
So are there any flaws with above procedure?
Yup; with the current protocols, there's no way to do change. For the shop to pay you change, besides suddenly losing your anonymity as a payee, you would have to go online immediately to clear the coins, which assumedly is infeasable. However, if you use the "fully anonymous" protocol, change becomes trivial. You don't have to go online; the payer (the shop) does, which it assumedly already is. Another benefit is that coins received in this way as change are immediately spendable by you, without having to go online in between. The "fully anonymous" protocol turns out to be _exactly_ what is needed for situations like this. - Ian "this is one of those 'pay attention' posts Sameer mentioned..." -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBMaCZaUZRiTErSPb1AQGnTgQAs/chMFt8PNJafSsgoLMOpPQgdevgbH6+ kRR/iSlj2B2kbuD0SPDa7lgvKVjjQWlaQ+AtZq/C6BFqn07/C7E23PZNY648OGpP eT1uD3ioRDd3C4rt9hDOHd1KWdllM75zLuwLY9XO4YWeDhExwakc6/Ze9cOgfh/e nusZy3Naanw= =iCNw -----END PGP SIGNATURE-----