Security Documentation
Comprehensive security documentation, threat models, audit reports, and hardening guides.
Last Updated: 2026-06-29 Security Status: Historical assessment snapshot (as of 2025-12-18)
Claim boundary: These security docs include historical reports and hardening references. They do not by themselves establish current production readiness, vulnerability remediation status, deployment approval, or security hardening completion. Verify current posture against live code, current CI, CodeQL/code-scanning results, dependency audits, state docs, and recent PR evidence.
🚨 Quick Links
- FINAL_SECURITY_STATUS.md - Historical assessment snapshot (2025-12-18)
- threat-model.md - Comprehensive threat analysis
- production-hardening.md - Historical hardening reference
- SECURITY_TESTING_GUIDE.md - Testing procedures
Overview
This directory contains all security-related documentation for ICN, including:
- Historical security assessments and status snapshots
- Threat models and risk analysis
- Security audit reports and findings
- Hardening guides and best practices
- SDIS-specific security documentation
- Testing and validation procedures
Code scanning configuration audit (2026-06-29)
A live repository audit found that GitHub CodeQL default setup is configured. GitHub dynamically analyzes Actions, JavaScript/TypeScript, Python, and Rust for pull requests and the default branch, with a weekly schedule and the default query suite. The repository does not contain a repo-owned .github/workflows/codeql.yml advanced setup workflow.
No advanced workflow was added by this audit. The current default setup already provides the repository's observed language and event coverage. GitHub's setup guidance reserves advanced setup for cases that need more granular control, and switching from default to advanced setup requires a coordinated repository-settings change. Adding an advanced workflow while leaving default setup active would not create a clean, independently reviewable transition.
If maintainers later choose repo-owned configuration or the security-extended query suite, treat that as a coordinated settings-and-workflow change. Alert triage remains separate. This point-in-time audit did not change repository settings, branch protection, runtime behavior, or any CodeQL alert, and it makes no claim about vulnerability remediation, hardening completion, or readiness.
📊 Historical security assessments
Assessment archive
| Document | Status | Description |
|---|---|---|
| FINAL_SECURITY_STATUS.md | Historical snapshot | Assessment dated 2025-12-18; not current readiness evidence |
| COMPREHENSIVE_SECURITY_IMPROVEMENTS.md | Historical report | Security overview and reported improvements from 2025-12-18 |
| SECURITY_FIXES_2025-12-18.md | Historical fix record | Changes reported on 2025-12-18; current status requires verification |
Historical deployment and hardening references
| Document | Description |
|---|---|
| production-hardening.md | Historical hardening measures and checklist (67KB) |
| SECURITY_TESTING_GUIDE.md | Testing procedures and validation |
| SECRET_MANAGEMENT.md | Secret management best practices |
| GATEWAY_CSP.md | Content Security Policy configuration |
🔍 Threat Models & Audits
Comprehensive Analyses
| Document | Scope | Size |
|---|---|---|
| threat-model.md | System threat-model reference | 43KB |
| security-roadmap.md | Security roadmap and priorities | 68KB |
| TOFU_SECURITY_MODEL.md | Trust-On-First-Use model analysis | 6KB |
Audit Reports
| Document | Date | Description |
|---|---|---|
| SECURITY_AUDIT_REPORT.md | 2025-12-18 | Primary audit report |
| SECURITY_AUDIT_RESULTS.md | 2025-12-18 | Detailed audit results |
| SECURITY_ANALYSIS_REMAINING_ISSUES.md | 2025-12-18 | Outstanding issues tracking |
| SECURITY_FOLLOWUP.md | Various | Follow-up actions |
| phase-10c-security-analysis.md | Phase 10c | Phase-specific analysis |
| codeql-alert-triage-2026-06-29.md | 2026-06-29 | Point-in-time static triage of CodeQL alerts #100 and #101 |
| codeql-gossip-nonce-triage-2026-06-29.md | 2026-06-29 | Point-in-time static triage of gossip nonce alerts #30–#35 |
| codeql-triage-closeout-2026-06-29.md | 2026-06-29 | Point-in-time inventory, remaining triage, and maintainer disposition checklist |
🆔 SDIS Security
Sovereign Digital Identity System security documentation:
| Document | Description |
|---|---|
| SDIS_THREAT_MODEL.md | SDIS-specific threat model (11KB) |
| SDIS_CRYPTO_REVIEW.md | Cryptographic review (11KB) |
| SDIS_AUDIT_CHECKLIST.md | SDIS audit checklist (9KB) |
See also: ../sdis/ for complete SDIS documentation
📚 Educational Resources
| Document | Audience | Description |
|---|---|---|
| EDUCATIONAL_GUIDE_SECURITY_FIXES.md | All | Learning resource for security fixes (15KB) |
| SECURITY_TESTING_GUIDE.md | Developers/QA | Testing procedures (10KB) |
🎯 Quick Access by Role
For Security Engineers
- FINAL_SECURITY_STATUS.md - Historical assessment context
- threat-model.md - Understand threats
- SECURITY_AUDIT_REPORT.md - Review findings
- security-roadmap.md - Future work
For DevOps/Operators
- production-hardening.md - Historical hardening checklist
- SECRET_MANAGEMENT.md - Secret handling
- GATEWAY_CSP.md - Gateway security
- SECURITY_TESTING_GUIDE.md - Validation
For Developers
- EDUCATIONAL_GUIDE_SECURITY_FIXES.md - Learn patterns
- SECURITY_TESTING_GUIDE.md - Test your code
- threat-model.md - Understand attack surface
- TOFU_SECURITY_MODEL.md - Trust model
For Auditors/Compliance
- SECURITY_AUDIT_REPORT.md - Audit findings
- SECURITY_AUDIT_RESULTS.md - Detailed results
- COMPREHENSIVE_SECURITY_IMPROVEMENTS.md - Historical improvements report
- security-roadmap.md - Future plans
🔐 Security Domains
Network Security
- DID-TLS binding (production-hardening.md)
- Certificate validation
- QUIC transport security
- mDNS security considerations
Cryptography
- Ed25519 signatures
- X25519-ChaCha20-Poly1305 encryption
- Post-quantum hybrid crypto (see ../design/post-quantum-crypto.md)
- SDIS cryptography (SDIS_CRYPTO_REVIEW.md)
Application Security
- Input validation
- Injection prevention
- Rate limiting and DoS protection
- Content Security Policy (GATEWAY_CSP.md)
Identity & Access
- DID-based authentication
- Trust graph authorization
- Multi-device identity (see ../design/multi-device-identity-design.md)
- SDIS identity (SDIS_THREAT_MODEL.md)
Operational Security
- Secret management (SECRET_MANAGEMENT.md)
- Backup and recovery
- Incident response
- Security monitoring
📈 Security Metrics
Metrics described by the referenced guidance include:
- Vulnerability response time
- Test coverage for security-critical paths
- Cryptographic strength margins
- Trust verification success rates
- Rate limiting effectiveness
See SECURITY_TESTING_GUIDE.md for monitoring procedures.
🚀 Security Roadmap
Planning and follow-up references:
- security-roadmap.md - Long-term roadmap reference
- SECURITY_ANALYSIS_REMAINING_ISSUES.md - Historical outstanding-issues snapshot
- SECURITY_FOLLOWUP.md - Historical follow-up record
Historical report milestones
- 2025-12-18 report set: production-hardening milestone recorded (historical claim)
- 2025-12-18 report set: security-audit resolution milestone recorded (historical claim)
- 2025-12-17 report set: architecture-security review milestone recorded (historical claim)
Follow-up areas
See security-roadmap.md for the recorded plans, then verify current priorities against live project evidence.
🔗 Related Documentation
- Architecture: ../architecture/ - System architecture
- SDIS: ../sdis/ - Identity system documentation
- Operations: ../guides/operations/ - Operational guides
- Design: ../design/ - Security-related designs
📝 Contributing to Security
When adding security documentation:
- Threat Models: Use STRIDE or similar frameworks
- Findings: Include severity, impact, and remediation
- Cross-references: Link to related security docs
- Updates: Date and label assessment snapshots; do not present FINAL_SECURITY_STATUS.md as current truth
- Sensitive Data: Never commit secrets or keys
See ../CONTRIBUTING.md for general guidelines.
⚠️ Reporting Security Issues
DO NOT file public issues for security vulnerabilities.
Follow responsible disclosure:
- Email security contact (see main README)
- Encrypt with project PGP key if available
- Include detailed reproduction steps
- Allow reasonable time for patching
📞 Questions?
- Security questions: Review EDUCATIONAL_GUIDE_SECURITY_FIXES.md
- Operational security: Check production-hardening.md
- Testing: See SECURITY_TESTING_GUIDE.md
- Historical assessment context: Review FINAL_SECURITY_STATUS.md
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