Skip to content

Latest commit

 

History

History
27 lines (22 loc) · 1.85 KB

README.md

File metadata and controls

27 lines (22 loc) · 1.85 KB
Raw

Shared Wallet on Ethereum

Overview

This project provides a simple implementation of a shared wallet on the Ethereum blockchain. The shared wallet allows for a designated owner to manage allowances for other addresses, enabling them to withdraw funds up to the allocated allowance. The smart contract is written in Solidity and utilizes the Ganache development blockchain for testing purposes.

Smart Contracts

Allowance.sol

This contract manages allowances granted by the owner to specific addresses. It includes the following functionalities:

  1. giveAllowance(address _to, uint _amount): Allows the owner to give an allowance to a specific address.
  2. updateAllowance(address _to, uint _amount, address _from): Internal function to update the allowance when funds are withdrawn.
  3. modifier ownerOrAllowanced(uint _amount): Modifier to ensure that the caller is the owner or has a sufficient allowance.

Ownable.sol

This contract provides basic ownership functionality:

  1. isOwner(): Checks if the caller is the owner.
  2. modifier OwnerAccess(): Modifier to restrict access to the owner.

SharedWallet.sol

This is the main contract that inherits from Allowance. It adds functionalities for receiving and withdrawing funds:

  1. receiveMoney(): Allows the contract to receive funds.
  2. withdrawMoney(address payable _adr, uint _amount): Allows the owner or addresses with sufficient allowance to withdraw funds.

Events

The smart contracts emit events to track important transactions:

  1. ChangedAllowance(address indexed _from, address indexed _to, uint _previousamount, uint _updatedamount): Emits when an allowance is updated.
  2. Received(address indexed _from, uint _amount): Emits when the contract receives funds.
  3. Sent(address indexed _to, uint _amount): Emits when funds are sent out from the contract.