Multi-Signature Wallet Smart Contract

This repository contains the implementation of a Solidity-based Multi-Signature Wallet contract. This contract allows multiple owners to approve and manage transactions in a decentralized way. For a transaction to be executed, a minimum number of owners must approve it.

Features

• Multi-Signature Approval: Multiple owners can collectively approve and execute transactions.
• Submit Transactions: Any owner can propose a new transaction.
• Approve Transactions: Owners can approve submitted transactions.
• Revoke Approval: Owners can revoke their approval for a transaction.
• Execute Transactions: Transactions can only be executed after receiving a minimum number of approvals.
• Deposit Ether: The contract can hold Ether and execute transactions involving Ether transfers.

Contract Overview

Key Components

• Owners: A predefined group of addresses who are allowed to submit, approve, and execute transactions.
• Transaction: A request to transfer Ether or perform an action on another contract. Transactions are stored in the contract until a minimum number of owners approve them.
• Approval: An action where an owner agrees to execute a transaction.
• Execution: Once the required number of approvals is reached, any owner can execute the transaction.

Contract Overview

Events

• Deposit: Logged whenever Ether is deposited into the contract.
• Submit: Triggered when an owner submits a transaction.
• Approve: Triggered when an owner approves a transaction.
• Revoke: Triggered when an owner revokes their approval for a transaction.
• Execute: Triggered when a transaction is executed.

Functions

• submit(address _to, uint _value, bytes calldata _data): Submits a transaction to be approved by the owners.
• approve(uint _txnId): Approves a submitted transaction.
• execute(uint _txnId): Executes the transaction once the minimum number of owners have approved it.
• revoke(uint _txnId): Revokes the approval of a transaction that hasn't been executed yet.