RUBx Smart Contracts

This repository contains two main smart contracts: a comprehensive Multi-Signature Wallet and a custom TRC20 token with blacklisting functionality.

Contracts Overview

1. MultiSigWallet.sol

A secure multi-signature wallet implementation that requires multiple owner confirmations before executing transactions. This contract provides comprehensive owner management functionality and secure transaction execution.

Features

• Multi-Owner System: Support for multiple wallet owners with unique address validation
• Configurable Confirmations: Customizable number of required confirmations (1 to number of owners)
• Transaction Management: Submit, confirm, revoke, and execute transactions
• Advanced Owner Management: Add, remove, and replace owners through wallet consensus
• Requirements Management: Dynamic adjustment of confirmation requirements

Core Functions

Transaction Management:

• submitTransaction(address _to, uint256 _value, bytes memory _data): Submit a new transaction for confirmation
• confirmTransaction(uint256 _txIndex): Confirm a pending transaction
• executeTransaction(uint256 _txIndex): Execute a transaction with sufficient confirmations
• revokeConfirmation(uint256 _txIndex): Revoke a previous confirmation

View Functions:

• getOwners(): Returns array of all owner addresses
• getTransactionCount(): Returns total number of transactions
• getTransaction(uint256 _txIndex): Returns transaction details

Owner Management (requires wallet execution):

• addOwner(address owner): Add a new owner to the wallet
• removeOwner(address owner): Remove an existing owner
• replaceOwner(address owner, address newOwner): Replace an existing owner
• changeRequirement(uint256 _required): Change the number of required confirmations

Security Features

• Only owners can submit and confirm transactions
• Transactions require minimum confirmation threshold before execution
• Protection against duplicate confirmations and re-execution
• Automatic requirement adjustment when owners are removed
• Comprehensive input validation and access control

2. RUBx.sol

An TRC20 token contract with role-based access control and blacklisting functionality. This token implements additional security features beyond the standard TRC20 specification.

Features

• Standard TRC20: Full TRC20 token implementation with custom decimals (2)
• Role-Based Minting: Only addresses with MINTER_ROLE can mint tokens
• Blacklisting System: Prevent blacklisted addresses from sending or receiving tokens
• Access Control: Uses OpenZeppelin's AccessControl for role management
• Transfer Restrictions: Both sender and recipient blacklist checks

Token Details

• Name: RUBx
• Symbol: RUBx
• Decimals: 2 (custom implementation)
• License: GPL-3.0

Key Functions

• mint(address to, uint256 amount): Mint new tokens (requires MINTER_ROLE)
• transfer(address to, uint256 amount): Transfer tokens (blocked for blacklisted addresses)
• transferFrom(address from, address to, uint256 amount): Transfer tokens from another address (blocked for blacklisted addresses)
• isBlacklisted(address account): Check if an address is blacklisted

Roles

• DEFAULT_ADMIN_ROLE: Can grant/revoke other roles and manage the contract
• MINTER_ROLE: Can mint new tokens to any address
• BLACKLIST: Addresses with this role cannot send or receive tokens