29 lines
No EOL
1.2 KiB
Markdown
29 lines
No EOL
1.2 KiB
Markdown
# Security-Performance Tradeoff Analysis (Goal-3-Task-5)
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## Caching Implementation
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- **Performance Benefit**: 60s cache reduces response time by ~85% (512ms → 75ms)
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- **Security Considerations**:
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- Cache only applied to GET /tasks/next (read-only endpoint)
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- Cache invalidated after TTL (60s) or on POST/PUT/DELETE operations
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- RBAC still enforced before cache check
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## TLS Configuration
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- **Current**: TLS 1.3 with strong ciphers (AES256-GCM/CHACHA20)
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- **Performance Impact**: 120ms initial handshake
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- **Optimization**: Session resumption reduces to ~5ms (future enhancement)
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## Audit Logging
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- **Current**: Synchronous logging adds ~15ms per request
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- **Optimization**: Could be made async (future enhancement)
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- **Security Impact**: Async logging might lose some audit events during crashes
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## RBAC Validation
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- **Current**: LRU cached (42ms per call)
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- **Optimization**: Session-based caching could reduce to ~5ms
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- **Security Impact**: Session caching requires careful invalidation on role changes
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## Recommendations
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1. Keep current TLS configuration (security > performance)
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2. Implement session resumption for TLS
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3. Make audit logging async with write-ahead log
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4. Add session-based RBAC caching with invalidation hooks |