Files
SeedPass/js
thePR0M3TH3ANandClaude Opus 5 063fae191f fix(derive): the profile config's password policy is the base again (M-2)
Python builds its PasswordGenerator with
`policy=self.config_manager.get_password_policy()` and merges an entry's own
`policy` block over that base per derivation. The port merged the entry block
over hardcoded defaults and never read the profile config at all, so every
entry in a profile with a non-default policy derived a *different password*
than Python. Nothing failed anywhere; it reached the user as a wrong password,
which is indistinguishable from data loss at the point of use.

materializeSecret now takes a `basePolicy` and merges the entry block over it.
All three callers supply the profile config's policy:

  - program.ts via basePolicyForOptions, resolved lazily so `entry list` and
    friends don't pay a second BIP-39 seed derivation for a policy they never
    use. `--vault` names an index file rather than a profile, so the config is
    looked for beside it and falls back to defaults when absent.
  - agent.ts from join(appDir, fingerprint), so a token-scoped reveal returns
    what the owner sees.
  - the TUI through a new sessionSecret helper that every menu path goes
    through, so a future call site cannot silently omit the base.

`util generate-password` is deliberately unchanged: it has no entry and no
profile, so its flags are the whole policy. It now says so in its own help
text rather than leaving the reader to infer it.

Evidence: js/packages/cli/test/passwordPolicy.test.ts covers config-only v2,
an entry overriding exactly one field, config-only v1 and exclude_ambiguous,
against values computed by the Python implementation — each also asserted
unequal to what the pre-fix code produced, so a regression fails loudly rather
than needing someone to notice a changed constant. Mutation-verified twice:
dropping basePolicy from the merge in secrets.ts, and making
basePolicyForOptions return {}, each turn all four red.

Found by the 2026-08-18 independent audit (js/SECURITY_AUDIT.md). The parity
fixture suite could not have caught this: those fixtures call generatePassword
with one already-resolved policy, so they prove the algorithm and say nothing
about where the policy came from.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
Claude-Session: https://claude.ai/code/session_01Vtx94nXDmNgXEeThUZP4QN
2026-08-18 21:38:19 -04:00
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