How much did David Chaum have solved at Digicash/eCash?
Some of the notes on the relevant wikipedia pages suggest he had double-spending solved:
Anyone have any more info on this? Was eCash's remaining problem merely initial-coin distribution, or was BGP actually not (practically) 'solved' despite the above?
Some of the notes on the relevant wikipedia pages suggest he had double-spending solved:
Quote
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Depending on the payment transactions, one distinguishes between on-line and off-line electronic cash: If the payee has to contact a third party (e.g., the bank or the credit-card company acting as an acquirer) before accepting a payment, the system is called an on-line system.[2] In 1990, Chaum together with Naor proposed the first off-line e-cash system, which was also based on blind signatures.[3]
http://en.wikipedia.org/wiki/Ecash
Depending on the payment transactions, one distinguishes between on-line and off-line electronic cash: If the payee has to contact a third party (e.g., the bank or the credit-card company acting as an acquirer) before accepting a payment, the system is called an on-line system.[2] In 1990, Chaum together with Naor proposed the first off-line e-cash system, which was also based on blind signatures.[3]
http://en.wikipedia.org/wiki/Ecash
Quote
In 1988, he extended this idea (with Amos Fiat and Moni Naor) to prevent double-spending.[13]
http://en.wikipedia.org/wiki/David_Chaum
http://en.wikipedia.org/wiki/David_Chaum
Anyone have any more info on this? Was eCash's remaining problem merely initial-coin distribution, or was BGP actually not (practically) 'solved' despite the above?
I moved the question and my comments on it into another thread in dev/tech section https://bitcointalksearch.org/topic/m.9526439 as its not really to do with speculation nor gold, though an interesting question!
Adam
