3 ms·
In that case, please enlighten me how to pierce the veil. For the sake of argument, you can play the role of an exchange arbiter - you have full visibility into
by helen___keller 6y ago
In that case, please enlighten me how to pierce the veil. For the sake of argument, you can play the role of an exchange arbiter - you have full visibility into every transaction.
On a given day you're signing a few billion in IOUs into existence from users, while paying out a few billion in IOUs from merchants. Since you are providing blind signatures, you essentially have two ledgers: one is transactions of the form (user, token_value, signed_at) and a second is transactions of the form (merchant, token_value, redeemed_at).
How do you suggest the exchange matches user to merchant from this data?
- zaphirplane 6y agoNot the person u are replying to Can a hash not be calculated for the iou, does it have an identifier ? The exchange can log those
- littlestymaar 6y agoIt cannot, the anonymity guarantees are exposed in the Taler paper[1]: https://ged.univ-rennes1.fr/nuxeo/site/esupversions/41aac1ac-3074-4b0e-9087-cee5f58ce0b2?inline https://ged.univ-rennes1.fr/nuxeo/site/esupversions/41aac1ac...
- monoideism 6y agoI've never looked into Taler before this, but they could be matched by token value and approximate time, no?
- helen___keller 6y agoToken value perhaps, under very low volume (think single digit users). But imagine millions or billions of dollars a day in transaction volume, looking at a $5 payment at a cafe and then trying to figure out which of the people whose been assigned a $5 token to in the past month might have shopped there - it would be absolutely futile. Taler wallets just sit there until you use them, much like cash. Realistically, there would be too many degrees of freedom to create a matching from merchant to user, even if we additionally assumed a ton of metadata about user/merchant location and such.
- monoideism 6y agoYes, but there isn't billions in commerce each day, at least not now.