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archipelagoandClaude Opus 5 5cf44c9a58 docs(10): correct F-10's scope and add KEY-05 — crate-wide CSPRNG enforcement
The audit recorded F-10 as two call sites in container/secrets.rs. The real
defaulted-RNG surface is 41 sites across 15 files: session.rs (16),
pine_ha.rs (6), wallet/bdhke.rs (4 — ecash key material), mesh/x3dh.rs (2 —
key-agreement material), storage_crypto.rs (1 — AEAD nonce), +10 more.

Nothing is broken today: rand::random()/thread_rng() are ChaCha12 seeded from
getrandom(2). What changes is blast radius — F-10's Low rating rested on
'per-app credentials rather than the master key hierarchy', which does not
survive the true scope. Re-rated Medium as F-10a.

Records why the original audit missed it: F-10 was reached by tracing the
manifest-secrets path, and no step enumerated defaulted-RNG use across the
crate independently of the traced paths.

F-10's original text is left unedited so the correction is auditable rather
than retroactive. R-13 superseded by R-16; tracker item replaced.

Adds KEY-05 to Phase 10: sealed allowlist trait at key-gen seams, clippy
disallowed-methods ban (compile-time, CI-enforced), cargo-deny on duplicate
rand majors, degenerate-entropy runtime check, persisted CSPRNG-readiness
verdict. Also retires the false 'impl CryptoRng for CountingRng' at
seed.rs:656.

Records the user's execution gate: Phase 10 does not start until the
concurrent Phase 1 agent is finished and their changes are synced. KEY-05 is
unplanned — the existing 5 plans predate it and a 6th is required.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-02 07:01:00 -04:00
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