P2PE (Payjoin)

Research on P2PE (Payjoin) to use it with ldk-node

Signet Setup

Be sure to have an up and running signet at 0.0.0.0:38332. You can use signet-local to spawn it using Docker.

Run

Payjoin "directly" -> Sender and Receiver changing a PSBT:

cargo run
# or
cargo run -- directly

Payjoin using rust-payjoin V1:

cargo run -- v1

Payjoin using rust-payjoin V2:

cargo run -- v2

Payjoin to open channel between 2 ldk-node:

cargo run -- ldk-open-channel
# You should delete the ./data/ in order to get a fresh re-run
rm -rf data && cargo run -- ldk-open-channel

[WIP] Payjoin Batch between wallets:

# Build a PSBT and circle it between wallets
cargo run -- batch 1
# Merge multiple PSBTs
cargo run -- batch 2
# Add foreign UTXOs to a PSBT
cargo run -- batch 3
# Circle serialized PSBTs (hex) between participants 
cargo run -- batch 4
# Introduce the "Pool of UTXOs" idea
cargo run -- batch 5
# Build a PSBT and circle it between wallets ensuring uniform output sizes. 
cargo run -- batch 6

Payjoin Batch between ldk-node:

cargo run -- ldk
# You should delete the ./data/ in order to get a fresh re-run
rm -rf data && cargo run -- ldk