This document outlines the security policies, procedures, and best practices for the BlocksenseOS project. BlocksenseOS is a confidential computing platform that requires the highest levels of security throughout its development, deployment, and operation.

• Multiple layers of security controls
• Redundant security measures
• Fail-safe defaults

• Verify all components and communications
• Assume breach scenarios
• Least privilege access

• Comprehensive dependency scanning
• Software Bill of Materials (SBOM) generation
• Signed builds and artifacts

• Deterministic builds
• Auditable processes
• Transparent security practices

• Static Analysis: All code undergoes automated static analysis using:

  • Rust: cargo clippy, cargo audit, cargo deny
  • C++: clang-static-analyzer, cppcheck
  • Nix: alejandra --check

• Dynamic Testing: Runtime security testing including:

  • Memory safety validation
  • Input fuzzing
  • Property-based testing with proptest

• Security Reviews: Manual security code reviews for:

  • Cryptographic implementations
  • TEE integration points
  • Network communication protocols
  • Input validation logic

• Dependency Management:

  • Only allow dependencies from trusted registries
  • Pin all dependencies to specific versions
  • Regular vulnerability scanning with cargo audit
  • License compliance checking with cargo deny

• SBOM Generation:

  • Automated generation using syft and cyclonedx-bom
  • Include all direct and transitive dependencies
  • Generate multiple formats (SPDX, CycloneDX)

• Reproducible Builds:

  • Nix-based deterministic builds
  • Content-addressed derivations
  • Build attestation generation

• Signed Artifacts:

  • All release artifacts are cryptographically signed
  • Build provenance tracking
  • Verification instructions provided

• Attestation Validation:

  • Comprehensive TEE report verification
  • Support for SEV-SNP, TDX, and SGX
  • Certificate chain validation
  • TCB status verification

• Cryptographic Security:

  • Hardware-backed key generation
  • Secure random number generation
  • Constant-time cryptographic operations
  • Regular key rotation

• Input Validation:

  • Strict input sanitization
  • Size limits enforcement
  • UTF-8 validation
  • Null byte detection

• Rate Limiting:

  • Per-client request limits
  • Configurable time windows
  • DDoS protection

• Connection Security:

  • Timeout enforcement
  • Connection limits
  • Graceful degradation

• Data at Rest:

  • Full disk encryption with LUKS
  • TPM-sealed encryption keys
  • Secure key derivation

• Data in Transit:

  • TLS for all network communications
  • Certificate validation
  • Perfect forward secrecy

• Data in Use:

  • TEE memory protection
  • Secure enclaves for processing
  • Memory clearing after use

• Automated Scanning:

  • Daily vulnerability scans with trivy
  • Container and filesystem scanning
  • Configuration security scanning

• Dependency Monitoring:

  • Continuous monitoring of dependencies
  • Automated alerts for new vulnerabilities
  • Regular dependency updates

1. Detection: Automated and manual vulnerability detection
2. Assessment: Risk analysis and impact evaluation
3. Response: Coordinated patching and mitigation
4. Communication: Stakeholder notification
5. Post-Incident: Review and process improvement

• Critical Vulnerabilities: Patched within 24 hours
• High Severity: Patched within 7 days
• Medium/Low Severity: Patched in next release cycle

• Unit Tests: Security-focused unit tests for all components
• Integration Tests: End-to-end security validation
• Property-Based Tests: Fuzzing and property verification
• Performance Tests: Security under load conditions

• Penetration Testing: Regular third-party security assessments
• Code Reviews: Manual security code reviews
• Architecture Reviews: Security design validation

• Internal Audits: Monthly security reviews
• External Audits: Annual third-party security audits
• Continuous Monitoring: Real-time security monitoring

• Security Policies: This document and related policies
• Procedures: Detailed security procedures
• Training: Security awareness and training materials

• Threat modeling
• Security requirements definition
• Risk assessment

• Secure coding practices
• Code reviews
• Static analysis

• Security testing
• Penetration testing
• Vulnerability scanning

• Secure configuration
• Access controls
• Monitoring setup

• Security updates
• Monitoring and alerting
• Incident response

• Rust Security: cargo audit, cargo deny, cargo clippy
• Vulnerability Scanning: trivy, syft, cyclonedx-bom
• Static Analysis: Language-specific analyzers
• Build Security: Nix, reproducible builds

• Automated Checks: Security validation in all pipelines
• Artifact Signing: All builds are signed
• SBOM Generation: Automated SBOM creation
• Vulnerability Gates: Block deployments with critical vulnerabilities

• Critical: Immediate security threat, potential data breach
• High: Significant security vulnerability
• Medium: Security issue with limited impact
• Low: Minor security concern

• Critical: Response within 1 hour, resolution within 24 hours
• High: Response within 4 hours, resolution within 7 days
• Medium: Response within 24 hours, resolution within 30 days
• Low: Response within 7 days, resolution in next release

• Internal: Security team, development team, management
• External: Users, customers, security community (as appropriate)
• Public: Security advisories, CVE submissions

• Security Lead: [[email protected]]
• Security Engineers: [[email protected]]

• Email: [[email protected]]
• PGP Key: [Public key for encrypted communications]
• Bug Bounty: [Link to responsible disclosure program]

• ISO 27001: Information security management
• SOC 2: Security, availability, and confidentiality
• Common Criteria: Security evaluation standards

• GDPR: Data protection compliance
• SOX: Financial reporting controls
• Industry Standards: Relevant industry security standards

• Secure Coding: All developers
• Security Awareness: All team members
• Incident Response: Security and operations teams

• Documentation: Security policies and procedures
• Training Materials: Online courses and workshops
• Security Champions: Team security advocates

• Vulnerability Resolution Time: Average time to patch vulnerabilities
• Security Test Coverage: Percentage of code with security tests
• Incident Response Time: Time to respond to security incidents

• Audit Findings: Number and severity of audit findings
• Training Completion: Percentage of required training completed
• Policy Compliance: Adherence to security policies

• Vulnerability assessment results
• Security metrics review
• Incident analysis

• Security policy updates
• Tool effectiveness assessment
• Training program evaluation

• Comprehensive security assessment
• External audit results
• Security strategy planning

Document Classification: Public
Last Updated: June 12, 2025
Next Review: September 12, 2025