Enhance Cross-Chain Bridge Security #30
Description
Issue:
The CrossChainBridge contract has potential security vulnerabilities.
Problems:
- Single owner can set trusted remotes
- No validation of LayerZero message authenticity
- Potential for replay attacks
- No rate limiting on bridge operations
Recommendation
- Modify Existing Contract:
CrossChainBridge.sol - Add message validation
- Implement rate limiting
- Add replay protection
- Multi-sig for trusted remote updates
If the Contract code size exceeds 24576 bytes split the contract
Acceptance Criteria:
- Rate limiting implemented and tested
- Message validation with replay protection
- Multi-sig for trusted remote updates
- Emergency pause functionality
- Blacklist functionality for malicious addresses
- Bridge amount limits per chain
- Comprehensive security testing
- Integration with LayerZero security features