aitbc/docs/advanced/06_security/1_security-cleanup-guide.md

AITBC Security Cleanup & GitHub Setup Guide

✅ COMPLETE SECURITY FIXES (2026-02-19)

Critical Vulnerabilities Resolved

1. Smart Contract Security Audit Complete
   • ✅ 0 vulnerabilities found in actual contract code
   • ✅ 35 Slither findings (34 OpenZeppelin informational warnings, 1 Solidity version note)
   • ✅ OpenZeppelin v5.0.0 upgrade completed for latest security features
   • ✅ Contracts verified as production-ready

Critical Vulnerabilities Resolved

1. Hardcoded Secrets Eliminated

   • ✅ JWT secret removed from config_pg.py - now required from environment
   • ✅ PostgreSQL credentials removed from db_pg.py - parsed from DATABASE_URL
   • ✅ Added validation to fail-fast if secrets aren't provided

2. Authentication Gaps Closed

   • ✅ Exchange API now uses session-based authentication
   • ✅ Fixed hardcoded user_id=1 - uses authenticated context
   • ✅ Added login/logout endpoints with wallet authentication

3. CORS Restrictions Implemented

   • ✅ Replaced wildcard origins with specific localhost URLs
   • ✅ Applied across all services (Coordinator, Exchange, Blockchain, Gossip)
   • ✅ Unauthorized origins now receive 400 Bad Request

4. Wallet Encryption Enhanced

   • ✅ Replaced weak XOR encryption with Fernet (AES-128 CBC)
   • ✅ Added PBKDF2 key derivation with SHA-256
   • ✅ Integrated keyring for password management

5. Database Sessions Unified

   • ✅ Migrated all routers to use storage.SessionDep
   • ✅ Removed legacy session dependencies
   • ✅ Consistent session management across services

6. Structured Error Responses

   • ✅ Implemented standardized error responses across all APIs
   • ✅ Added ErrorResponse and ErrorDetail Pydantic models
   • ✅ All exceptions now have error_code, status_code, and to_response() method

7. Health Check Endpoints

   • ✅ Added liveness and readiness probes
   • ✅ /health/live - Simple alive check
   • ✅ /health/ready - Database connectivity check

🔐 SECURITY FINDINGS

Files Currently Tracked That Should Be Removed

High Priority - Remove Immediately:

1. .windsurf/ - Entire IDE configuration directory

   • Contains local IDE settings, skills, and workflows
   • Should never be in a public repository

2. Infrastructure secrets files:

   • infra/k8s/sealed-secrets.yaml - Contains sealed secrets configuration
   • infra/terraform/environments/secrets.tf - References AWS Secrets Manager

Files With Hardcoded Credentials (Documentation/Examples)

Low Priority - These are examples but should be cleaned:

• website/docs/coordinator-api.html - Contains SECRET_KEY=your-secret-key
• website/docs/wallet-daemon.html - Contains password="password"
• website/docs/pool-hub.html - Contains POSTGRES_PASSWORD=pass

🚨 IMMEDIATE ACTIONS REQUIRED

1. Remove Sensitive Files from Git History

# Remove .windsurf directory completely
git filter-branch --force --index-filter 'git rm -rf --cached --ignore-unmatch .windsurf/' --prune-empty --tag-name-filter cat -- --all

# Remove infrastructure secrets files
git filter-branch --force --index-filter 'git rm -rf --cached --ignore-unmatch infra/k8s/sealed-secrets.yaml infra/terraform/environments/secrets.tf' --prune-empty --tag-name-filter cat -- --all

# Clean up
git for-each-ref --format='delete %(refname)' refs/original | git update-ref --stdin
git reflog expire --expire=now --all && git gc --prune=now --aggressive

2. Update .gitignore

Add these lines to .gitignore:

# IDE configurations
.windsurf/
.snapshots/
.vscode/
.idea/

# Additional security
*.env
*.env.*
*.key
*.pem
*.crt
*.p12
secrets/
credentials/
infra/k8s/sealed-secrets.yaml
infra/terraform/environments/secrets.tf

3. Replace Hardcoded Examples

Replace documentation examples with placeholder variables:

• SECRET_KEY=your-secret-key → SECRET_KEY=${SECRET_KEY}
• password="password" → password="${DB_PASSWORD}"
• POSTGRES_PASSWORD=pass → POSTGRES_PASSWORD=${POSTGRES_PASSWORD}

🐙 GITHUB REPOSITORY SETUP

Repository Description

AITBC - AI Trusted Blockchain Computing Platform
A comprehensive blockchain-based marketplace for AI computing services with zero-knowledge proof verification and confidential transaction support.

Recommended Topics

blockchain ai-computing marketplace zero-knowledge-proofs confidential-transactions web3 python fastapi react typescript kubernetes terraform helm decentralized gpu-computing zk-proofs cryptography smart-contracts

Repository Settings to Configure

Security Settings:

• ✅ Enable "Security advisories"
• ✅ Enable "Dependabot alerts"
• ✅ Enable "Dependabot security updates"
• ✅ Enable "Code security" (GitHub Advanced Security if available)
• ✅ Enable "Secret scanning"

Branch Protection:

• ✅ Require pull request reviews
• ✅ Require status checks to pass
• ✅ Require up-to-date branches
• ✅ Include administrators
• ✅ Require conversation resolution

Integration Settings:

• ✅ Enable "Issues"
• ✅ Enable "Projects"
• ✅ Enable "Wikis"
• ✅ Enable "Discussions"
• ✅ Enable "Packages"

📋 FINAL CHECKLIST

Before Pushing to GitHub:

• Remove .windsurf/ directory from git history
• Remove infra/k8s/sealed-secrets.yaml from git history
• Remove infra/terraform/environments/secrets.tf from git history
• Update .gitignore with all exclusions
• Replace hardcoded credentials in documentation
• Scan for any remaining sensitive files
• Test that the repository still builds/works

After GitHub Setup:

• Configure repository settings
• Set up branch protection rules
• Enable security features
• Add README with proper setup instructions
• Add SECURITY.md for vulnerability reporting
• Add CONTRIBUTING.md for contributors

🔍 TOOLS FOR VERIFICATION

Scan for Credentials:

# Install truffleHog
pip install trufflehog

# Scan repository
trufflehog filesystem --directory /path/to/repo

# Alternative: git-secrets
git secrets --scan -r

Git History Analysis:

# Check for large files
git rev-list --objects --all | git cat-file --batch-check='%(objecttype) %(objectname) %(objectsize) %(rest)' | sed -n 's/^blob //p' | sort -n --key=2 | tail -20

# Check for sensitive patterns
git log -p --all | grep -E "(password|secret|key|token)" | head -20

⚠️ IMPORTANT NOTES

1. Force Push Required: After removing files from history, you'll need to force push:

   git push origin --force --all
   git push origin --force --tags
   

2. Team Coordination: Notify all team members before force pushing as they'll need to re-clone the repository.

3. Backup: Create a backup of the current repository before making these changes.

4. CI/CD Updates: Update any CI/CD pipelines that might reference the removed files.

5. Documentation: Update deployment documentation to reflect the changes in secrets management.