a1denvalu3's avatar
a1denvalu3 1 year ago
Bulletproofs are used to prove that the coins are within a range. IPA is a building block. They are a fundamental for building blinded amount ecash. And with blinded amount ecash, you can have ANY amount ecash, which makes ultrasmall wallets possible.

Replies (4)

Proving coins are in a range rather than a specific amount is useful to obscure timing around inflows and outflows? This protects mint users’ privacy?
a1denvalu3's avatar
a1denvalu3 1 year ago
This is already doable with Chaumian ecash unlinkability properties. What we struggle to do is have the same unlikability also forr the amount the ecash is for.
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a1denvalu3 1 year ago
I mean for example one single coin represents the entire wallet with 101 bytes