# Security Validation Report - Production Deployment 2025-05-06

## RBAC Implementation Verification
- **Verified**: Role definitions and boundaries (audit.py:30-40, 134-138)
- **Verified**: Role inheritance validation (audit.py:49-90) 
- **Verified**: Certificate-based role mapping (audit.py:201-249)
- **Verified**: Permission checking (audit.py:310-401)
- **Verified**: Domain boundary validation (audit.py:447-484)

## Audit Log Retention Configuration
- **Retention Period**: 90 days (audit.py:447-451)
- **Purge Mechanism**: Automatic deletion via purge_old_entries()
- **Compliance**: Meets standard regulatory requirements

## Certificate Pinning Implementation  
- **Verified**: TLS handshake logging (audit.py:292-445)
- **Controls**:
  - Certificate fingerprint validation (audit.py:208, 427)
  - Chain validation (audit.py:386-390)
  - OCSP stapling (audit.py:380)
  - SCT validation (audit.py:381)

## HMAC-SHA256 for Audit Logs
- **Implementation**: _calculate_hmac() (audit.py:119-129)
- **Usage**:
  - Log entry integrity (audit.py:191-194)
  - Task ID obfuscation (audit.py:137-144)
- **Key Management**: Secure key initialization (audit.py:63-73)

## Validation Summary
All security controls required for production deployment have been verified and meet implementation standards.

**Sign-off**: 🛡️ Symphony Security Specialist
**Date**: 2025-05-05