-----BEGIN PGP SIGNED MESSAGE----- Hi... In the Cyphernomicon, section 12.6.6, Tim May writes: - Chaum went to great lengths to develop system which preserve anonymity for single-spending instances, but which break anonymity and thus reveal identity for double- spending instances. I'm not sure what market forces caused him to think about this as being so important, but it creates many headaches. Besides being clumsy, it require physical ID, it invokes a legal system to try to collect from "double spenders," and it admits the extremely serious breach of privacy by enabling stings. For example, Alice pays Bob a unit of money, then quickly Alice spends that money before Bob can...Bob is then revealed as a "double spender," and his identity revealed to whomver wanted it...Alice, IRS, Gestapo, etc. A very broken idea. Acceptable mainly for small transactions. But as far as I got Chaums idea, Alice would not reveal Bobs identity, but rather her own. Am I missing a point here? Andreas -----BEGIN PGP SIGNATURE----- Version: 2.6.2 Comment: Processed by Mailcrypt 3.4, an Emacs/PGP interface iQCVAgUBMIVd0EyjTSyISdw9AQFvAQP/bLDQV1JEIXPlUxbUqMVffv62YQf4j6Wu IkTr0qMjP4PLpLZFyKus+uf3JQIYsK660LdDykmcKafdYMH8LW6Z4SxDkkd2HwyY Hsf5xW3aIfnyQ5bPcI5dhWz4hao9RJ23Hc7sjzvHVgTcrQCLf7ADixhPCm7xnq3n YffnXg5slHU= =pLXN -----END PGP SIGNATURE-----