On 24/03/12 03:41 AM, Michael Rogers wrote:

On 22/03/12 23:41, James A. Donald wrote:

...

Repeating: You pseudonymously store other people's stuff, using a nym that gains reputation thereby, and anonymously store your stuff on other people's systems, using a nym with no reputation.

Hi James,

This is an intriguing idea, but I don't understand how cancelling out cycles of IOUs (which sounds very much like PledgeRoute, is that right?) can be combined with Chaumian mixing of IOUs.

He means Chaumian blinding protocol for transferring a single IOU from Alice to Bob. A Chaum blinded transfer ensures that the issuer Ivan cannot trace the transfer from Alice to Bob, in this case it gives untraceability (as opposed to anonymity or psuedonymity). (I suspect...) Chaumian mixing is a completely different thing to Chaum's blinding formula. iang

Let's say for the sake of argument that we've solved the problem of finding a trustworthy party to perform the mixing.

Before mixing, Alice has an IOU from Bob. Alice has interacted with Bob before and established a credit limit for him, so she knows how much an IOU from him is worth. Alice puts her IOU into the mix and gets out someone else's IOU. Now she has an IOU from someone she's never interacted with. How does Alice know the IOU is worth anything?

Cheers, Michael

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