Currently supported versions of the dodecet-encoder project:

Note: Only the latest stable version (1.0.x) receives security updates.

The dodecet-encoder team takes security seriously. If you discover a security vulnerability, please report it responsibly.

Do NOT file a public issue. Instead, send a private report to the maintainers:

1. Email: security@superinstance.ai
2. GitHub: Send a private report through GitHub's private vulnerability reporting
3. PGP Key: Available at https://superinstance.ai/pgp

Please include the following information in your report:

• Description: Detailed description of the vulnerability
• Impact: Potential impact of the vulnerability
• Steps to Reproduce: Clear steps to reproduce the issue
• Proof of Concept: Code or screenshots demonstrating the vulnerability
• Affected Versions: Which versions are affected
• Suggested Fix: If available, suggested fix or mitigation

You can expect a response within:

• 48 hours: Initial acknowledgment of receipt
• 7 days: Detailed assessment and validation
• 14 days: Proposed fix timeline
• 30 days: Fix released (for critical vulnerabilities)

We will keep you informed throughout the process:

1. Acknowledgment: Confirmation that we received your report
2. Validation: Confirmation that we can reproduce the issue
3. Resolution: Estimated timeline for fix
4. Disclosure: Notification when fix is released

The dodecet-encoder library is designed with the following security considerations:

Trusted Computing Base:

• Pure Rust implementation with minimal dependencies
• No unsafe code except in well-validated performance-critical sections
• No network operations or external I/O
• No dynamic code loading

Attack Surface:

• Input validation (hex strings, dodecet values)
• Memory safety (bounds checking, overflow protection)
• Type safety (Rust's type system prevents invalid states)

Security Guarantees:

• Memory safety: No buffer overflows, use-after-free, or null pointer dereferences
• Type safety: Invalid states prevented at compile time
• Bounds checking: All array accesses checked
• Overflow protection: Arithmetic operations handle overflow gracefully

Integer Overflow:

• Arithmetic operations may overflow
• Use checked operations for security-critical code
• Consider wrapping operations for performance-critical code

Precision Limits:

• 12-bit precision (0-4095) may be insufficient for some applications
• Quantization errors can accumulate in complex calculations
• Consider floating-point for high-precision requirements

No Cryptography:

• Dodecet encoding is NOT cryptographically secure
• Do NOT use for cryptographic operations
• Use dedicated crypto libraries for security

1. Input Validation:

   // Always validate input
   let d = Dodecet::new(value)
       .expect("Invalid dodecet value");
   
   // Or handle error gracefully
   match Dodecet::new(value) {
       Ok(d) => { /* use d */ }
       Err(e) => { /* handle error */ }
   }

2. Bounds Checking:

   // Access array elements safely
   let nibble = d.nibble(index)
       .unwrap_or(0); // Provide default

3. Overflow Handling:

   // Use checked arithmetic for security
   let sum = a.checked_add(b)
       .expect("Overflow detected");

4. Precision Awareness:

   // Be aware of quantization effects
   let point = Point3D::new(x, y, z);
   let distance = point.distance_to(&other);
   // Consider precision limitations in calculations

1. Code Review:

   • All code must be reviewed by at least one maintainer
   • Security-sensitive code requires additional review
   • Use security-focused code review checklist

2. Testing:

   • Include unit tests for all new code
   • Add integration tests for workflows
   • Include security tests for input validation

3. Documentation:

   • Document security considerations
   • Note potential security issues
   • Provide secure usage examples

4. Dependencies:

   • Minimize external dependencies
   • Audit dependencies regularly
   • Keep dependencies up to date

Initial Security Audit (2026-03-15):

• Scope: Complete codebase review
• Findings: No critical or high-severity issues
• Recommendations: Implemented all suggestions
• Report: Available at docs/SECURITY_AUDIT_2026_03_15.md

Planned security audits:

• Next Audit: 2026-09-01 (6 months post-1.0)
• Frequency: Semi-annual
• Scope: Full codebase + dependencies
• Auditor: Third-party security firm

[dependencies]
# Core dependencies (minimal, audited)
# No external dependencies for core functionality

[dev-dependencies]
# Development dependencies only
criterion = "0.5"  # Benchmarks

1. Minimal Dependencies: Use as few dependencies as possible
2. Trusted Sources: Only use reputable, well-maintained crates
3. Regular Updates: Update dependencies monthly
4. Security Patches: Apply security patches immediately
5. Vulnerability Scanning: Run cargo audit weekly

We follow responsible disclosure practices:

1. Private Report: Vulnerability reported privately
2. Validation: Team validates and reproduces issue
3. Fix Development: Security fix developed and tested
4. Coordinated Release: Fix released with security advisory
5. Credit: Reporter credited (with permission)

Security advisories will be published at:

• GitHub Security Advisories: https://github.com/SuperInstance/dodecet-encoder/security/advisories
• Announcement mailing list: security-announce@superinstance.ai

For vulnerabilities meeting CVE criteria:

• CVE ID assigned during disclosure process
• Published in security advisory
• Linked to fix release

1. Memory Safety:

   • Rust's ownership system prevents memory corruption
   • No buffer overflows possible
   • No use-after-free vulnerabilities

2. Type Safety:

   • Invalid states prevented at compile time
   • No null pointer dereferences
   • No data races

3. Bounds Checking:

   • All array accesses checked
   • No out-of-bounds access
   • Panic on invalid access

4. Input Validation:

   • All public APIs validate input
   • Result types for fallible operations
   • Clear error messages

• Secure Coding Guide
• Input Validation Guide
• Best Practices

• Security Review Checklist
• Reporting Vulnerabilities
• Security Testing Guide

For security-related questions:

• Email: security@superinstance.ai
• GitHub Security: https://github.com/SuperInstance/dodecet-encoder/security
• PGP Key: https://superinstance.ai/pgp

We thank all security researchers who have responsibly disclosed vulnerabilities to help improve the security of the dodecet-encoder project.

Last Updated: 2026-03-16 Version: 1.0.0 Security Policy Version: 1.0