📅 Original date posted:2020-06-11
📝 Original message:Hi,
As part of research into how CoinJoins in general and Wasabi in
particular can be improved, we'd like to share a new building block
we're calling WabiSabi, which utilizes keyed verification anonymous
credentials instead of blind signatures to verify the honest
participation of users in centrally coordinated CoinJoin protocols.
Blind signatures have been used to facilitate centrally coordinated
CoinJoins, but require standard denominations, each associated with a
key, because blind signatures can only convey a single bit of
information from the signer to the verifier (both roles are the
coordinator in this setting). Anonymous credentials carry attributes,
and in our case these are homomorphic value commitments as in
Confidential Transactions.
Note that this is an early draft with a deliberately narrow scope, and
only introduces this abstract building block. At this stage we'd like
to solicit feedback and criticism about our scheme and inputs with
regards to its potential applications before proceeding. We do not not
(yet) address the structure of the CoinJoin transactions, fee
structures, or other implementation details, but discussion of these
aspects is welcome.
The repository is https://github.com/zkSNACKs/WabiSabi, and the latest
version is available here:
https://github.com/zkSNACKs/WabiSabi/releases/latest/download/WabiSabi.pdf
Yuval Kogman [ARCHIVE] /
npub1hk…u8g7t
2023-06-07 18:25:29
in reply to nevent1q…pynr
Author Public Key
npub1hkfafupgp66lck0q9zeumhypw9wq9ajakpznf6vd5jmhmcc6dnuqcu8g7tPublished at
2023-06-07 18:25:29Event JSON
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"content": "📅 Original date posted:2020-06-11\n📝 Original message:Hi,\n\nAs part of research into how CoinJoins in general and Wasabi in\nparticular can be improved, we'd like to share a new building block\nwe're calling WabiSabi, which utilizes keyed verification anonymous\ncredentials instead of blind signatures to verify the honest\nparticipation of users in centrally coordinated CoinJoin protocols.\n\nBlind signatures have been used to facilitate centrally coordinated\nCoinJoins, but require standard denominations, each associated with a\nkey, because blind signatures can only convey a single bit of\ninformation from the signer to the verifier (both roles are the\ncoordinator in this setting). Anonymous credentials carry attributes,\nand in our case these are homomorphic value commitments as in\nConfidential Transactions.\n\nNote that this is an early draft with a deliberately narrow scope, and\nonly introduces this abstract building block. At this stage we'd like\nto solicit feedback and criticism about our scheme and inputs with\nregards to its potential applications before proceeding. We do not not\n(yet) address the structure of the CoinJoin transactions, fee\nstructures, or other implementation details, but discussion of these\naspects is welcome.\n\nThe repository is https://github.com/zkSNACKs/WabiSabi, and the latest\nversion is available here:\nhttps://github.com/zkSNACKs/WabiSabi/releases/latest/download/WabiSabi.pdf",
"sig": "637370d31dce54d4d4900d81847a7447c662250e4d39cd14dfdb0d78fa7330611a175b31d5e221577d334cd3bc8bcef764e92761ec6bafe1b6365e97d6f86a82"
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