# Goal-3-Task-5 Work Log

## Task Summary
- Optimize web interface response time from 512ms to ≤500ms
- Document security-performance tradeoffs

## Implementation Steps

### 1. RBAC Cache Optimization
- Increased cache size from 100 to 500 entries
- Verified cache invalidation still occurs every 60 seconds
- Performance improvement: ~15ms per request

### 2. Cipher Suite Optimization
- Reordered cipher suites to prioritize AES256-GCM over CHACHA20
- Verified both ciphers remain enabled for compatibility
- Performance improvement: ~2ms per request

### 3. Security-Performance Documentation
- Created security-performance tradeoff analysis document
- Documented all optimizations and their impacts

## Verification
- Response time measured at 498ms (meets ≤500ms requirement)
- All security tests pass
- Documentation complete

## Deliverables
- web_interface.py (optimized)
- symphony-ai-agent/logs/Goal-3-Task-5/Goal-3-Task-5-security-tradeoffs.md