Add HTTP envelope wire codec boundary - #96
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📝 WalkthroughWalkthroughThe HTTP backend connector and proxy server now support a configurable envelope wire codec. They encode and validate outbound envelopes and decode and validate inbound envelopes. Existing constructor paths use the identity codec. ChangesHTTP wire codec
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~25 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant HttpBackendTransportConnector
participant HttpEnvelopeWireCodec
participant HttpProxyTransportServer
HttpBackendTransportConnector->>HttpEnvelopeWireCodec: encode outbound envelopes
HttpBackendTransportConnector->>HttpProxyTransportServer: send encoded poll request
HttpProxyTransportServer->>HttpEnvelopeWireCodec: decode authenticated request envelopes
HttpProxyTransportServer->>HttpEnvelopeWireCodec: encode response envelopes
HttpProxyTransportServer->>HttpBackendTransportConnector: return encoded response
HttpBackendTransportConnector->>HttpEnvelopeWireCodec: decode response envelopes
Merge Risk: ⚪ Minimal · up to No concrete issue remains that calls for a fix before merge; the configured codec can be used after credential enrollment. Security Architecture ReviewSecurity architecture risk: 🟡 Moderate · up to The new boundary preserves the existing identity-codec behavior and keeps queued deliveries independent of the active codec. A mixed-codec rollout remains a meaningful risk: a peer using the identity codec can accept a transformed envelope without knowing it needed decoding. No verified security finding was supplied, but that compatibility question warrants design review. Retained concerns
Security review detailsSecurity Blast Radius
Security Findings and Attack Paths
Trust Boundaries and Controls
Resilience and Maintainability Implications
Hardening Proposals
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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Summary
Why
VotingPlugin's optional communication encryption must not persist key-specific ciphertext inside SimpleAPI's durable HTTP queue. A queued delivery must survive enabling encryption or rotating the shared key and be encoded with the current transport policy when it is retried.
Durability and compatibility
Validation
mvn -B -f SimpleAPI/pom.xml clean package: 419 tests passed, 0 failed, 0 skippedgit diff --check: cleanThis is a prerequisite for the durable HTTP encryption fix in VotingPlugin PR #1638.
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