Editing Modman/Requirements (section)

== 5. Other Nonfunctional Requirements ==

<span id="performance-requirements"></span>
=== 5.1 Performance Requirements ===

# Response Time
#* DHT lookups MUST complete within 10 seconds for optimal user experience
#* Module search MUST complete within 2 seconds
#* Installation MUST show progress indicators and download speeds
#* Downloads MUST utilize available bandwidth effectively through multi-peer transfers
#* Metadata dissemination MUST be timely and efficient
#* MUST support concurrent downloads (10+ default)
#* MUST provide sequential download feedback for user monitoring
# Scalability
#* MUST handle basic module repository (1,000+ packages)
#* MUST support basic concurrent operations
#* SHOULD scale to large network sizes (20,000+ packages)
#* SHOULD handle frequent updates efficiently (1.5% daily)
#* MUST optimize for small package sizes (majority < 512KB)
#* MUST handle basic NAT traversal
#* SHOULD maintain long-lived peer connections (5+ hours)
#* MUST support piece-based downloads for large files (>2.5MB)
# Caching and Storage
#* MUST utilize Codex for basic content storage
#* MUST use content-addressed storage for basic deduplication
#* MUST support basic chunk-based transfers
#* SHOULD implement advanced cache management based on popularity
#* SHOULD implement delta storage optimization
#* MUST implement basic cache eviction
#* SHOULD optimize storage for small packages
#* MUST handle basic multi-architecture storage
#* MUST support basic piece-wise verification
#* SHOULD support configurable cache limits

<span id="security-requirements"></span>
=== 5.2 Security Requirements ===

# Package Verification Requirements
#* MUST use signature wrappers with timestamps to prevent replay attacks
#* MUST use self-certifying path names for package verification
#* MUST support customized repository views per client
#* MUST verify package metadata before downloading packages
#* MUST prevent metadata tampering through cryptographic verification
#* MUST validate all repository communications
# Cryptographic Requirements
#* MUST use strong cryptographic primitives
#* SHOULD implement perfect forward secrecy
#* MUST secure all network communications
#* MUST verify module integrity via cryptographic hashes
#* MUST validate digital signatures on modules
#* SHOULD support multiple signing keys per module
#* MUST separate user and module signing keys
# Dependency Resolution Security
#* MUST verify dependencies through cryptographic validation
#* MUST prevent dependency-based attacks
#* MUST validate dependency metadata independently
#* MUST detect malicious dependency specifications
#* MUST prevent dependency confusion attacks
#* MUST handle missing dependencies securely
# Access Control
#* MUST implement principle of least privilege
#* MUST control module installation permissions
#* MUST protect sensitive operations
#* MUST enforce module isolation
#* MUST prevent unauthorized privilege escalation
#* MUST validate module source authenticity
#* MUST enforce key usage restrictions
# Audit
#* MUST log security-relevant events
#* MUST track module provenance
#* MUST maintain audit trails
#* MUST record module installation history
#* MUST track certificate delegation chains
#* MUST record key revocations and replacements
#* MUST maintain distributed ledger of events
# Trust Management
#* MUST verify initial module trust
#* MUST maintain trust continuity during updates
#* MUST handle certificate expiration
#* MUST support basic certificate revocation
#* SHOULD implement advanced reputation tracking
#* SHOULD support distributed consensus validation
#* MUST handle basic malicious registry scenarios
# Supply Chain Security
#* SHOULD verify build reproducibility
#* MUST validate module dependencies
#* MUST detect basic tampering
#* MUST prevent unauthorized modifications
#* MUST handle basic compromised registry scenarios
#* SHOULD support multiple registry mirrors
#* SHOULD implement advanced consensus validation

<span id="software-quality-attributes"></span>
=== 5.3 Software Quality Attributes ===

# Reliability
#* MUST handle basic network failures
#* MUST maintain basic data integrity
#* MUST provide basic stable operation
#* SHOULD handle advanced peer capabilities
#* MUST support basic network connectivity
# Availability
#* MUST provide basic offline operation
#* MUST handle basic peer disconnections
#* SHOULD provide advanced offline capabilities
#* SHOULD support advanced caching strategies
#* SHOULD implement advanced routing optimizations
# Maintainability
#* MUST be modular
#* MUST provide basic documentation
#* MUST support basic testing
#* SHOULD support protocol evolution
#* SHOULD handle advanced version compatibility
# Portability
#* MUST support core architectures (x86_64, ARM)
#* MUST be platform-independent
#* MUST handle basic environments
#* SHOULD support advanced device capabilities
#* SHOULD handle advanced resource constraints

<span id="business-rules"></span>
=== 5.4 Business Rules ===

# Module Publishing
#* MUST verify basic developer identity
#* MUST validate basic module metadata
#* SHOULD support advanced identity verification
#* SHOULD support advanced metadata validation
# Version Management
#* MUST follow semantic versioning
#* MUST maintain basic version history
#* SHOULD support advanced version tracking
#* SHOULD handle advanced deprecation scenarios

<span id="other-requirements"></span>