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- Changed pytest calls to use `venv/bin/python -m pytest` with explicit config - Added `--rootdir "$PWD"` and `--import-mode=importlib` for consistent imports - Fixed PYTHONPATH to use absolute paths with $PWD prefix - Added smart contract security scanning for Solidity files - Added Circom circuit security checks for ZK proof circuits - Added ZK proof implementation security validation - Added contracts/** to security scanning workflow
5.2 KiB
5.2 KiB
Smart Contract Security Audit Preparation
Date: May 11, 2026 Audit Scope: Smart Contract Security Sprint Findings
Overview
This document summarizes the security enhancements implemented during the Smart Contract Security Sprint, covering 8 findings (5 High severity, 3 Medium severity) across 3 smart contracts.
Contracts Modified
- AgentStaking.sol - Staking mechanism with slashing and oracle protection
- AIServiceAMM.sol - Automated Market Maker with flash loan and front-running protection
- EscrowService.sol - Escrow service with multi-oracle verification and voting thresholds
High Severity Findings (5)
SC-H-01: No Slashing Mechanism in AgentStaking.sol
Status: ✅ Implemented and Tested
Changes:
- Added manual slashing by owner with percentage-based penalty
- Implemented automatic slashing based on accuracy thresholds (default 50%)
- Implemented automatic slashing based on missed jobs (default 5 max)
- Added appeal process with 7-day window
- Added reporter rewards (5% of slashed amount)
- Added custom slashing condition configuration
Testing: 27 unit tests passing
SC-H-02: Lack of Oracle Manipulation Protection in AgentStaking.sol
Status: ✅ Implemented and Tested
Changes:
- Implemented authorized oracle list management
- Added signature verification using OpenZeppelin ECDSA
- Added nonce validation for oracle updates
- Implemented time delay for performance updates (1 hour default)
- Added oracle rotation mechanism (30 day period)
- Added oracle reputation scoring system
Testing: 27 unit tests passing
SC-H-03: AMM Vulnerable to Flash Loan Attacks in AIServiceAMM.sol
Status: ✅ Implemented
Changes:
- Implemented TWAP (Time-Weighted Average Price) oracle
- Added price deviation limits (5% default)
- Implemented flash loan detection
- Added minimum swap delay (1 second default)
- Implemented circuit breaker for abnormal price movements
- Added circuit breaker cooldown (1 hour default)
SC-H-04: No Front-Running Protection in AIServiceAMM.sol
Status: ✅ Implemented
Changes:
- Implemented commit-reveal scheme for large trades
- Added large trade threshold (1e18 tokens)
- Added price impact limits (3% default)
- Added commit-reveal window (5 minutes default)
- Added batch execution delay (10 seconds default)
SC-H-05: Emergency Withdraw Without Timelock in AIServiceAMM.sol
Status: ✅ Implemented
Changes:
- Added 48-hour timelock for emergency withdrawals
- Implemented two-step execution (schedule + execute)
- Added cancellation mechanism for pending withdrawals
- Deprecated old emergencyWithdraw function
- Added timelock configuration (1 hour minimum, 7 days maximum)
Medium Severity Findings (3)
SC-M-01: Oracle Single Point of Failure in EscrowService.sol
Status: ✅ Implemented
Changes:
- Implemented multi-oracle verification with threshold (2/3 default)
- Added separate oracle verification mappings to avoid nested mappings
- Added time delay after oracle verification before release (1 hour default)
- Added oracle authorization management
- Added verification threshold configuration
- Added verification delay configuration
SC-M-02: No Minimum Voting Threshold for Emergency Release in EscrowService.sol
Status: ✅ Implemented
Changes:
- Implemented percentage-based voting threshold (66% default)
- Added minimum quorum requirement (3 arbiters default)
- Added time lock after approval before execution (1 hour default)
- Replaced simple majority with percentage-based approval
- Added voting threshold configuration
- Added quorum configuration
- Added timelock configuration
SC-M-03: No Rate Limiting on Staking Operations in AgentStaking.sol
Status: ✅ Implemented
Changes:
- Added maximum stakes per day (10 default)
- Added maximum total stakes per user (50 default)
- Added stake cooldown (1 minute default)
- Implemented daily stake count reset
- Implemented cooldown enforcement
- Added rate limiting configuration functions
Test Coverage
AgentStaking.sol Security Tests:
- 27 unit tests covering slashing mechanism and oracle protection
- All tests passing
Compilation Status:
- All contracts compile successfully
- No critical warnings
Files Modified
/opt/aitbc/contracts/contracts/AgentStaking.sol/opt/aitbc/contracts/contracts/AIServiceAMM.sol/opt/aitbc/contracts/contracts/EscrowService.sol/opt/aitbc/contracts/test/AgentStakingSecurity.test.js(new test file)
Deployment Status
- All security enhancements implemented
- Smart contracts compiled and tested
- Awaiting testnet deployment of AIToken.sol
- Coordinator-api service restarted successfully
Recommended Audit Firms
- CertiK - Comprehensive smart contract audits
- Trail of Bits - Deep security analysis
- OpenZeppelin - Industry-standard security reviews
- ConsenSys Diligence - Enterprise-grade audits
Audit Deliverables Required
- Smart contract source code (all modified files)
- Test suite results
- This security enhancement summary
- Deployment configuration
- Threat model documentation
Next Steps
- Select audit firm
- Prepare code package for submission
- Schedule audit timeline
- Complete testnet deployment
- Address any audit findings