Comments (2)
Future SIGHASH_NOINPUT standard BIP-118 [12] MAY BE compatible with this proposal, since a protocol utilizing the present standard MAY define that any transaction commitment with an input signature flag set to SIGHASH_NOINPUT MUST default to the zero value of commitment-specific parameter c. This will still preserve the privacy from the onchain analysis tools due to the presence of the protocol-specific parameter s, which will be unknown for any party that does know which protocol is used by some transaction (given the fact that the used protocol can't be guessed from the transaction itself).
I don't understand how SIGHASH_NOINPUT could interact with the described protocol.
Thank you
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With SIGHASH_NOINPUT we do not know (at the moment of transaction creation) which transaction output we will be spending, so we do not have access/canβt predict the entropy from the off-chain proof that assigns assets to the future-spend txout.
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Related Issues (20)
- Make data type constants part fo the standard HOT 1
- Upgrade LNPBP-4 with merke trees
- LNPBP-2 references to an outdated stage of commitment procedure of LNPBP-1 HOT 2
- LNPBP-1 lacks standardization of public key serialization format HOT 6
- Cover multiple instances of the same pubkey in LNPBP-1 and 2 standards
- Allow bulletproof implementation upgradability in RGB schema HOT 1
- LNPBP-31: ElGamal on Secp256k1
- Write Tapret commitments standard HOT 4
- Test vectors HOT 1
- Write specification for opret-based RGB in BOLT lightning
- ticker doesn't allow numbers HOT 2
- decide future of current RGB21 implementation HOT 1
- Add contract media global state HOT 2
- RGB: Use i64 instead of i32 for Timestamps in interface standards HOT 6
- LNPBP-2: Miniscript determinism can't be used for key tweaks HOT 1
- LNPBP-2: Upgrade miniscript version requirement to v5.0.0 tagged commit
- Should RGB schema enforce lower bounds on meta fields? HOT 2
- Mitigation of Sybil attacks in LN HOT 3
- LNPBP-38: Add support for Bifrost
- RGBv2: Reduce anchor entropy bit size by merging with txid data
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