So back in 1999, in an ecash thread on cypherpunks I claimed: http://marc.info/?l=cypherpunks&m=95280154629900&w=2
> I wouldn't say ecash has to use blinding, but I would argue it would be a > misuse of the word "ecash", if something which was revocable were dubbed > ecash. This was in the context of a discussion of digigold (e-gold stored the physical gold, digigold offered "ecash" backed in that physical gold). Digigold ran on Systemics payment server/sox protocol. Because of inferred regulatory concerns and patent licensing issues digigold & systemics were not using blind signatures. However with systemics sox server, like bitcoin, you could create multiple accounts on demand and shuffle payments around for a degree of privacy. The bitcoin analogy would be the transaction log lived in the systemics server, so it had a central failure point, but arguably more privacy as the log was not public. Also systemics SOX protocol (Ian Grigg & Gary Howland) had some aspect of bitcoins smart contract concepts - ricardian contracts. http://iang.org/papers/ricardian_contract.html (Btw the anonymous reply itself was interesting - http://marc.info/?l=cypherpunks&m=95280154629912&w=2 that could have been Nakamoto, the only missing thing from the parts on the discussion room floor to bitcoin is mathematical inflation control.) The thread actually started here http://marc.info/?l=cypherpunks&m=95280154629912&w=2 and then continues here http://marc.info/?l=cypherpunks&m=95280154629900&w=2 because of a subject line change and then http://marc.info/?l=cypherpunks&m=95280154629916&w=2 and http://marc.info/?l=cypherpunks&m=95280154629948&w=2 more subject line change confusion. A related thread a few days later also covers Sander & Ta-Shma (which zerocoin is based on): http://marc.info/?l=cypherpunks&m=95280154630167&w=2 there were many more threads about various ecash technologies. Adam ------------------------------------------------------------------------------ AlienVault Unified Security Management (USM) platform delivers complete security visibility with the essential security capabilities. Easily and efficiently configure, manage, and operate all of your security controls from a single console and one unified framework. Download a free trial. http://p.sf.net/sfu/alienvault_d2d _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
