exec-server: default remote transport to Noise#26245
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## Why Rendezvous forwards traffic between the orchestrator and exec-server. The endpoints need to authenticate each other and encrypt that traffic without trusting Rendezvous with plaintext or endpoint keys. ## Changes - Adds a hybrid Noise IK channel through Clatter using X25519, ML-KEM-768, AES-256-GCM, and SHA-256. - Binds each handshake to `environment_id`, `executor_registration_id`, and `stream_id`. - Pins the registry-provided executor key and carries the harness authorization inside the encrypted handshake. - Orders relay frames before consuming Noise nonces and fragments large JSON-RPC messages into bounded records. - Bounds handshake payloads, frames, streams, and message reassembly. Runtime activation is in [#26245](#26245). ## Stack 1. **[#26242](#26242: Noise channel and relay transport 2. [#26245](#26245): remote registration and runtime activation ## Verification - `just test -p codex-exec-server` - Oversized initiator payload regression coverage - `just fix -p codex-exec-server` - `just bazel-lock-check` - `cargo shear` --------- Co-authored-by: Codex <noreply@openai.com>
…i-entrypoint # Conflicts: # codex-rs/exec-server/src/noise_channel.rs # codex-rs/exec-server/src/noise_channel_tests.rs # codex-rs/exec-server/src/noise_relay/harness.rs # codex-rs/exec-server/src/noise_relay/mod.rs # codex-rs/exec-server/src/relay.rs
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This reverts commit 59b780c.
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Why
The transport in openai/codex#26242 needs to be used by every remote orchestrator-to-executor connection before JSON-RPC traffic starts.
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Verification
just test -p codex-exec-serverjust fix -p codex-exec-serverjust bazel-lock-checkcargo shear