GhoBridge: Cross-Chain Token Bridging with Chainlink CCIP

GhoBridge is a decentralized, secure, and efficient cross-chain bridging solution powered by Chainlink's Cross-Chain Interoperability Protocol (CCIP), and Gho Token's Facilitator Logic designed for the Gho Token.

Features

• Cross-Chain Bridging: Securely transfer Gho Token across supported blockchains with minimal trust assumptions.
• Chainlink CCIP Integration: Utilizes Chainlink's Cross-Chain Interoperability Protocol for decentralized message passing.
• Fee Management: Manages LINK token fees for cross-chain messaging, ensuring efficient and cost-effective operations.
• Access Control: Implements ownership-based access control for administrative functions.
• Credit System: Credits the recipient's account on the destination chain, allowing for flexible withdrawal of bridged tokens.
• Event Logging: Comprehensive event logs for key actions, enhancing transparency and auditability.

Quick Start

Prerequisites

• Node.js and npm installed
• An Ethereum wallet with ETH and LINK for deploying contracts and paying transaction fees

Installation

1. Clone the Repository

   git clone https://github.com/GhoBridge/smart-contracts.git
   cd gho-bridge
   

2. Install Dependencies

   npm install
   

3. Add the env variables

   cp .env.template .env
   

4. Compile Contracts

   npx hardhat compile
   

5. Deploy Contracts

   Run all the scripts in the sequense on all the supported networks, to deploy the contracts

Usage

Adding Supported Chains and Contracts

Only the contract owner can add or remove supported chains and their corresponding GhoToken contracts on those chains.

// Add a supported chain and contract
addSupportedContract(uint64 chainSelector, address contractAddress);

// Remove a supported chain
removeSupportedContract(uint64 chainSelector);

Bridging Tokens

Users can bridge tokens to a supported chain by calling initiateBridging.

// Bridge tokens to the recipient on the destination chain
initiateBridging(uint64 destinationChainSelector, address receiver, uint256 amount);

Withdrawing Tokens

Recipients can withdraw their credited tokens on the destination chain.

// Withdraw credited tokens
withdraw(uint256 amount);

Security

This project is in the development stage and has not been audited. Use at your own risk. Before using this contract in a production environment, it is highly recommended to undergo a comprehensive security audit.

Contributing

Contributions are welcome! Please feel free to submit pull requests or open issues to discuss proposed changes or report bugs.

License

This project is licensed under the MIT License - see the LICENSE file for details.