# AION v2 Documentation
This directory contains comprehensive documentation including user guides, security auditing, threat modeling, and security-critical code identification.
## User Documentation
### 📖 [User Guide](USER_GUIDE.md)
**Purpose**: Complete user documentation for AION v2
**Contents**:
- Getting started tutorial
- CLI reference for all commands
- Use case examples (Healthcare, Finance, Legal)
- Troubleshooting guide
- Best practices
**Target Audience**: Developers, DevOps, compliance teams
---
### 🔧 [Developer Guide](DEVELOPER_GUIDE.md)
**Purpose**: Technical documentation for contributors
**Contents**:
- Architecture overview and diagrams
- Module structure and dependencies
- API reference with examples
- Contributing workflow
- Code style (Tiger Style)
- Testing requirements
**Target Audience**: Contributors, integrators, maintainers
---
## Security Audit Documentation
### 📘 [Security Audit Guide](SECURITY_AUDIT_GUIDE.md)
**Purpose**: Complete guide for external security auditors
**Contents**:
- Executive summary of security properties
- System architecture overview
- Detailed attack surface analysis
- Security-critical code locations
- Cryptographic implementation review
- Threat model summary
- Testing & verification coverage
- Audit recommendations and deliverables
**Target Audience**: External security auditors, penetration testers
---
### ✅ [Audit Preparation Checklist](AUDIT_PREPARATION_CHECKLIST.md)
**Purpose**: Comprehensive checklist for preparing for security audit
**Contents**:
- Pre-audit preparation tasks
- Documentation verification
- Code quality & testing requirements
- Security controls verification
- During-audit support checklist
- Post-audit remediation process
- Success criteria and timeline
**Target Audience**: Project team, security coordinators
---
### 🔍 [Security-Critical Code Locations](SECURITY_CRITICAL_CODE.md)
**Purpose**: Detailed identification of security-critical code sections
**Contents**:
- Critical: Signature verification, key derivation, nonce generation
- High: Parser bounds checking, memory zeroization
- Medium: Version validation, hash chain validation
- Code coverage statistics
- Recommended audit order
**Target Audience**: Security auditors, code reviewers
---
## Additional Security Documentation
### 📋 [RFC-0006: Threat Model](../rfcs/RFC-0006-threat-model.md)
**Purpose**: STRIDE-based threat model and attack surface analysis
**Contents**:
- Assets and adversary model
- STRIDE threat analysis
- Risk assessment matrix
- Security controls (preventive, detective, corrective)
- Implementation security requirements
- Monitoring and detection
**Status**: APPROVED
---
## Quick Reference
### For External Auditors
**Start Here**:
1. Read [Security Audit Guide](SECURITY_AUDIT_GUIDE.md) - Overview and context
2. Review [Security-Critical Code](SECURITY_CRITICAL_CODE.md) - What to audit
3. Check [Audit Preparation Checklist](AUDIT_PREPARATION_CHECKLIST.md) - Verification items
**Key Security Properties to Verify**:
- ✅ No signature verification bypass
- ✅ No private key extraction from keystore
- ✅ No file format parser exploits
- ✅ No cryptographic implementation flaws
- ✅ No denial of service vectors
### For Development Team
**Before Code Changes**:
1. Review [Threat Model](../rfcs/RFC-0006-threat-model.md)
2. Check if changes affect [Security-Critical Code](SECURITY_CRITICAL_CODE.md)
3. Verify security controls remain effective
**Before External Audit**:
1. Complete [Audit Preparation Checklist](AUDIT_PREPARATION_CHECKLIST.md)
2. Update [Security Audit Guide](SECURITY_AUDIT_GUIDE.md) if architecture changed
3. Verify all security tests passing
### For Security Reviewers
**Review Focus**:
1. **Critical Priority** (🔴):
- Signature verification logic
- Key derivation functions
- Nonce generation
- Private key storage
2. **High Priority** (🟠):
- Parser bounds checking
- Memory zeroization
- File header validation
3. **Medium Priority** (🟡):
- Version sequence validation
- Hash chain validation
- Error handling
---
## Document Status
| User Guide | 1.0 | 2024-12-09 | Complete |
| Developer Guide | 1.0 | 2024-12-09 | Complete |
| Security Audit Guide | 1.0 | 2024-12-09 | Ready for Audit |
| Audit Preparation Checklist | 1.0 | 2024-12-09 | Complete |
| Security-Critical Code | 1.0 | 2024-12-09 | Complete |
| RFC-0006 Threat Model | 1.0 | 2024-11-26 | Approved |
---
## Security Contact
For security-related questions or to report vulnerabilities:
1. **GitHub Issues**: Open issue with `security` label
2. **Private Disclosure**: For sensitive vulnerabilities, contact project maintainers directly
3. **Audit Questions**: Reference specific document sections and line numbers
---
## Maintenance
These documents should be updated:
- ✅ **After Major Features**: Update threat model and attack surface analysis
- ✅ **Before External Audit**: Verify all checklists and update audit guide
- ✅ **After Security Findings**: Update with lessons learned and new mitigations
- ✅ **Quarterly**: Review and update security-critical code locations
---
**Last Updated**: 2024-11-26
**Next Review**: Before external security audit