libre-bridge-diagrams's Introduction

Libre bridge architecture overview

Libre bridge sequence diagram

Pegin

sequenceDiagram
  actor Alice(Bitcoin)
  participant MPC Node (Libre)
  participant MPC Wallet (Bitcoin)
  participant MPC Network
  participant LBTC (Bridge Interface)
  actor Alice(Libre)

  Alice(Bitcoin)->LBTC (Bridge Interface): Get BTC Address
  alt already has address
    LBTC (Bridge Interface)->Alice(Bitcoin): Return address
  else does not have address
    MPC Node (Libre)->LBTC (Bridge Interface): Get pending accounts

    MPC Node (Libre)->MPC Network: Generate key material
    MPC Node (Libre)->LBTC (Bridge Interface): Update BTC Address
    Alice(Bitcoin)->LBTC (Bridge Interface): Get BTC Address
  end

  Alice(Bitcoin)->MPC Wallet (Bitcoin):Send 1BTC 
  
  MPC Network->MPC Wallet (Bitcoin): Any txs?
  MPC Wallet (Bitcoin)->MPC Network: 1BTC to Alice's Address
  MPC Network->MPC Wallet (Bitcoin): Check valid transaction & number of confirmations
  MPC Network->LBTC (Bridge Interface): Check transaction complete

  %% Insert pending transaction   
  MPC Network->MPC Node (Libre): Start pending transaction
  MPC Network->MPC Node (Libre): Sign pending transaction
  MPC Network->LBTC (Bridge Interface): Send pending transaction

  %% Insert mint transaction   
  MPC Network->MPC Node (Libre): Start mint and transfer transaction
  MPC Network->MPC Node (Libre): Sign mint and transfer transaction
  MPC Network->LBTC (Bridge Interface): Send mint and transfer transaction

  LBTC (Bridge Interface)->Alice(Libre): Transfer 1 LBTC

  %% Insert confirmed transaction   
  MPC Network->MPC Node (Libre): Start confirmed transaction
  MPC Network->MPC Node (Libre): Sign confirmed transaction
  MPC Network->LBTC (Bridge Interface): Send confirmed transaction

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