aitbc/.windsurf/plans/security-audit-plan.md

description

description
Security & Audit Workflow for AITBC Platform

Security & Audit Workflow

This workflow covers comprehensive security auditing and review for the AITBC platform.

Status Summary

Initial Audit Phase: ✅ Completed (2026-05-11)

The initial internal security audit has been completed with the following deliverables:

• Security findings documented (20 findings: 3 Critical, 10 High, 7 Medium)
• Threat model created
• Economic analysis completed
• Remediation plan developed
• CI/CD security scanning enhanced

Remediation Implementation: ✅ Partially Completed (2026-05-11)

• Phase 1 (Critical): ✅ Complete (3/3 findings resolved)

  • ECDSA verification bypass - Mitigated
  • Mock ZK proof verification - Resolved
  • Unlimited token minting - Resolved

• Phase 2 (High): 🔄 Partial (5/10 findings resolved, 5 deferred)

  • ✅ Circom circuit constraints (3 findings) - Resolved
  • ✅ ZK proof implementation security (5 findings) - Resolved/Mitigated
  • ⏸️ Smart contract economic security (5 findings) - Deferred to dedicated sprint

• Phase 3 (Medium): ⏸️ Deferred (0/7 findings resolved, 7 deferred)

  • All Medium findings require smart contract upgrades
  • Deferred to dedicated smart contract security sprint

Smart Contract Security Sprint: ⏳ Not Started

• Scope: 8 deferred findings (5 High, 3 Medium)
• Components: AgentStaking.sol, AIServiceAMM.sol, EscrowService.sol
• Requires: Contract development, testing, migration strategy, governance approval

Third-Party Audit: Not yet initiated - pending completion of non-smart-contract remediations

Prerequisites

• Access to all source code repositories
• Documentation of system architecture
• List of third-party dependencies
• Smart contract source code
• Circom circuit source code
• Budget for third-party security audit (if applicable)

Steps

1. Professional Third-Party Security Audit

1. Select security audit firm

   • Research reputable blockchain security firms
   • Evaluate expertise in: smart contracts, ZK proofs, zero-knowledge systems
   • Compare pricing and timelines
   • Check references and past audits

2. Prepare audit scope

   • Define components to audit:
     • Smart contracts (Solidity)
     • ZK circuits (Circom)
     • Coordinator API (Python/FastAPI)
     • Blockchain node (Python)
     • Wallet daemon (Python)
   • Define audit timeline and deliverables
   • Prepare architecture documentation
   • Provide threat model documentation

3. Engage audit firm

   • Sign NDAs and contracts
   • Provide access to code repositories
   • Schedule kickoff meeting
   • Define communication channels

4. Review audit findings

   • Receive audit report
   • Categorize findings by severity (Critical, High, Medium, Low)
   • Review each finding with engineering team
   • Estimate remediation effort

5. Implement security fixes

   • Create issue tickets for each finding
   • Prioritize Critical and High findings
   • Implement fixes with proper testing
   • Document remediation steps

6. Re-audit

   • Submit fixed code for re-audit
   • Verify all findings are resolved
   • Obtain final audit report
   • Publish audit summary (if appropriate)

2. Circom Circuit Security Review

1. Circuit code review

   • Review all Circom circuits in apps/zk-circuits/
   • Check for common vulnerabilities:
     • Arithmetic overflow/underflow
     • Incorrect constraint definitions
     • Side-channel attacks
     • Privacy leaks
   • Verify circuit correctness with test vectors

2. Constraint analysis

   • Analyze constraint complexity
   • Check for unnecessary constraints
   • Verify witness generation correctness
   • Test circuit with edge cases

3. Proving system review

   • Review Groth16 proving key generation
   • Verify trusted setup ceremony process
   • Check verification key security
   • Test proof generation and verification

4. Performance optimization

   • Analyze circuit size and proving time
   • Optimize constraint count
   • Implement circuit caching
   • Benchmark proving performance

3. ZK Proof Implementation Audit

1. API endpoint security

   • Review ZK proof endpoints in coordinator API
   • Check input validation
   • Verify proof verification logic
   • Test with malicious inputs

2. Circuit integration review

   • Review integration of Circom circuits with Python
   • Check witness generation security
   • Verify proof serialization/deserialization
   • Test proof verification pipeline

3. Privacy verification

   • Verify zero-knowledge properties
   • Check that sensitive data is not leaked
   • Test with privacy-sensitive scenarios
   • Verify confidentiality guarantees

4. Error handling

   • Review error messages for information leaks
   • Test error paths
   • Verify graceful degradation
   • Check logging sensitivity

4. Token Economy and Attack Vector Review

✅ COMPLETED (2026-05-11)

1. Economic model analysis

   • ✅ Reviewed token distribution and vesting
   • ✅ Analyzed incentive mechanisms
   • ✅ Checked for economic attack vectors:
     • Pump and dump
     • Front-running
     • MEV extraction
     • Sybil attacks

2. Smart contract economic security

   • ✅ Reviewed staking mechanisms
   • ✅ Checked reward distribution logic
   • ✅ Verified slashing conditions
   • ✅ Analyzed governance token economics

3. Market manipulation prevention

   • ✅ Reviewed marketplace pricing mechanisms
   • ✅ Checked for oracle manipulation risks
   • ✅ Verified liquidity protection
   • ✅ Analyzed arbitrage opportunities

4. Game theory analysis

   • ✅ Analyzed Nash equilibria
   • ✅ Checked for dominant strategies
   • ✅ Verified incentive alignment
   • ⏳ Test economic simulations (pending)

Findings: 9 issues documented in docs/security/audit-findings.md

5. Security Findings Documentation and Remediation

1. Create security findings document

   • Document: docs/security/audit-findings.md
   • Structure by component and severity
   • Include: description, impact, remediation, status
   • Track remediation progress

2. Create remediation plan

   • Prioritize findings by severity
   • Assign owners and timelines
   • Create issue tickets
   • Track progress in project management tool

3. Implement fixes

   • Fix Critical findings first
   • Add comprehensive tests for fixes
   • Perform regression testing
   • Update documentation

4. Security hardening

   • Implement defense in depth
   • Add additional security layers
   • Improve monitoring and alerting
   • Update security policies

5. Post-audit improvements

   • Update development practices
   • Add security testing to CI/CD
   • Implement security training
   • Establish security review process

Verification

• Third-party audit firm selected and engaged
• Audit scope defined and documented
• Circom circuits reviewed and optimized
• ZK proof implementation audited
• Token economy analyzed for attack vectors
• Security findings documented
• Critical and High findings remediated
• Re-audit completed and findings resolved
• Security hardening implemented
• Security practices updated

Troubleshooting

• Audit firm unavailable: Expand search to include more firms, consider remote audit firms
• Circuit review finds issues: Consult Circom community, review best practices, consider circuit redesign
• Economic model vulnerabilities: Consult economic experts, consider simulation testing, adjust incentives
• Remediation blocked: Escalate to management, prioritize critical fixes, consider temporary mitigations

Related Files

Source Code:

• apps/zk-circuits/*.circom
• apps/coordinator-api/src/app/routers/zk_applications.py
• apps/coordinator-api/src/app/routers/ml_zk_proofs.py
• apps/coordinator-api/src/app/services/zk_proofs.py
• apps/coordinator-api/src/app/services/zk_memory_verification.py
• contracts/contracts/AIToken.sol
• contracts/contracts/AgentStaking.sol
• contracts/contracts/AIServiceAMM.sol
• contracts/contracts/EscrowService.sol

Security Documentation:

• docs/security/audit-findings.md - All 20 security findings
• docs/security/threat-model.md - Comprehensive threat model
• docs/security/economic-analysis.md - Economic security analysis
• docs/security/remediation-plan.md - 3-phase remediation plan

CI/CD:

• .gitea/workflows/security-scanning.yml - Enhanced security scanning workflow