diff options
| -rw-r--r-- | bip-0078.mediawiki | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/bip-0078.mediawiki b/bip-0078.mediawiki index c795343..b775191 100644 --- a/bip-0078.mediawiki +++ b/bip-0078.mediawiki @@ -249,7 +249,7 @@ The receiver needs to do some check on the original PSBT before proceeding: ===Sender's payjoin proposal checklist=== The sender should check the payjoin proposal before signing it to prevent a malicious receiver from stealing money. - + * Verify that the absolute fee of the payjoin proposal is equals or higher than the original PSBT. * If the receiver's BIP21 signalled <code>pjos=0</code>, disable payment output substitution. * Verify that the transaction version, and the nLockTime are unchanged. @@ -325,7 +325,7 @@ Because the receiver needs to bump the fee to keep the same fee rate as the orig The validation (policy and consensus) of the original transaction is optional: a receiver without a full node can decide to create the payjoin transaction and automatically broadcast the original transaction after a timeout of 1 minute, and only verify that it has been propagated in the network. -However, non-interactive receivers (like a payment processor) need to verify the transaction to prevent UTXO probing attacks. +However, non-interactive receivers (like a payment processor) need to verify the transaction to prevent UTXO probing attacks. This is not a concern for interactive receivers like Wasabi Wallet, because those receivers can just limit the number of original PSBT proposals of a specific address to one. With such wallets, the attacker has no way to generate new deposit addresses to probe the UTXOs. @@ -498,7 +498,7 @@ public async Task<PSBT> RequestPayjoin( if (proposedPSBTInput.NonWitnessUtxo != null || proposedPSBTInput.WitnessUtxo != null) throw new PayjoinSenderException("The receiver added non_witness_utxo or witness_utxo to one of our inputs"); sequences.Add(proposedTxIn.Sequence); - + // Fill up the info from the original PSBT input so we can sign and get fees. proposedPSBTInput.NonWitnessUtxo = input.SignedPSBTInput.NonWitnessUtxo; proposedPSBTInput.WitnessUtxo = input.SignedPSBTInput.WitnessUtxo; @@ -660,7 +660,7 @@ A successful exchange with: * [[https://github.com/BlueWallet/BlueWallet|BlueWallet]] is in the process of implementing the protocol. * [[https://github.com/btcpayserver/btcpayserver|BTCPay Server]] has implemented sender and receiver side of this protocol. * [[https://github.com/zkSNACKs/WalletWasabi/|Wasabi Wallet]] has merged sender's support. -* [[https://github.com/JoinMarket-Org/joinmarket-clientserver|Join Market]] is in the process of implementing the protocol. +* [[https://github.com/JoinMarket-Org/joinmarket-clientserver|Join Market]] has implemented sender and receiver side of this protocol. * [[https://github.com/bitcoinjs/payjoin-client|JavaScript sender implementation]]. ==Backward compatibility== |