MultiWallet Smart Contract

Overview

This Solidity smart contract implements a multi-signature wallet system where transactions require confirmation from multiple owners before being executed. Each owner can submit transactions and confirm transactions initiated by other owners. Once a transaction receives the required number of confirmations, it can be executed to transfer Ether to the specified recipient.

Features

• Allows multiple owners to manage a single wallet.
• Transactions require a configurable number of confirmations from owners before execution.
• Events are emitted for transaction submission, confirmation, and execution.
• Prevents duplicate confirmations and execution of transactions.
• Provides functions to submit transactions, confirm transactions, and execute transactions.

Contract Structure

• numConfirm: Number of confirmations required for executing a transaction.
• owners: Array of wallet owners' addresses.
• Transaction: Struct representing a transaction with recipient address, value, and execution status.
• isConfirmed: Mapping to track confirmations for each transaction.
• isOwner: Mapping to track wallet ownership.
• transactions: Array to store all transactions.
• TxSubmitted, TxConfirmed, TxExecuted: Events emitted for transaction lifecycle.
• onlyOwner: Modifier to restrict access to wallet owners.
• constructor: Initializes the contract with owners and confirmation requirements.
• submitTX: Function to submit a transaction to the contract.
• confirmTx: Function to confirm a transaction by an owner.
• isTransactionConfirmed: Function to check if a transaction is confirmed by the required number of owners.
• executeTx: Function to execute a transaction.

Usage

1. Deploy the contract with an array of owner addresses and the number of confirmations required.
2. Owners can submit transactions using the submitTX function.
3. Owners can confirm pending transactions using the confirmTx function.
4. Once a transaction receives the required confirmations, any owner can execute it using the executeTx function.

Deployment

This contract should be deployed on a compatible Ethereum Virtual Machine (EVM) such as Ethereum mainnet, testnets, or private Ethereum networks.

Note

• Ensure that owner addresses are correctly initialized during contract deployment.
• Adjust the number of confirmations required based on the desired security level.
• Exercise caution when executing transactions, as they involve transferring Ether.