# Security Audit Request

## Project Information

**Project Name**: Trustless Bridge System
**Network**: ChainID 138 (Besu) ↔ Ethereum Mainnet
**Audit Type**: Smart Contract Security Audit
**Priority**: High

## Scope

### Contracts to Audit

1. **Lockbox138** (ChainID 138)
   - Deposit contract
   - Replay protection
   - Deposit ID generation

2. **InboxETH** (Ethereum Mainnet)
   - Claim submission
   - Rate limiting
   - Relayer fees
   - Batch operations

3. **BondManager** (Ethereum Mainnet)
   - Bond posting
   - Bond slashing
   - Bond release
   - Batch operations

4. **ChallengeManager** (Ethereum Mainnet)
   - Fraud proof verification
   - Challenge mechanism
   - Finalization logic
   - Batch operations

5. **LiquidityPoolETH** (Ethereum Mainnet)
   - Liquidity management
   - Fee distribution
   - Minimum ratio enforcement

6. **SwapRouter** (Ethereum Mainnet)
   - DEX integration
   - Slippage protection
   - Route validation

7. **BridgeSwapCoordinator** (Ethereum Mainnet)
   - Bridge + swap coordination
   - Claim verification

8. **Libraries**
   - MerkleProofVerifier
   - FraudProofTypes

## Focus Areas

1. **Economic Security Model**
   - Bond sizing calculations
   - Slashing mechanics
   - Economic attack scenarios

2. **Fraud Proof Implementation**
   - Merkle proof verification
   - Fraud proof types
   - Verification logic

3. **Access Control**
   - Admin functions
   - Authorization mechanisms
   - Multisig integration

4. **Rate Limiting**
   - Cooldown mechanisms
   - Hourly limits
   - Spam prevention

5. **Batch Operations**
   - Gas efficiency
   - Error handling
   - Reentrancy protection

## Deliverables

- Comprehensive audit report
- Risk assessment
- Recommendations
- Fix prioritization

## Timeline

- **Request Date**: [DATE]
- **Proposed Start**: [DATE]
- **Expected Completion**: [DATE]
- **Remediation Period**: 2-4 weeks

## Contact

[Your Contact Information]