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fix(mobile): restore keysForNsec after the native key derivation change - #9085

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brow merged 1 commit into
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fix-mobile-keys-for-nsec
Nov 5, 2026
Merged

brow merged 1 commit into
mainfrom
fix-mobile-keys-for-nsec

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@brow brow commented Nov 5, 2026 •

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Summary

#8965 native key derivation removed AccountIdentityStore._keys. keysForNsec, added by #9029 nsec backup, which merged first, still called it. The two PRs didn't conflict textually, so main now fails flutter analyze (_keys isn't defined at account_identity_store.dart:356) and mobile CI is red.

This builds the keys through keysForHex(_nsecHex(nsec)), the same path withKeys uses since #8965. It applies the same bech32 decoding and secp256k1 scalar validation that _keys did.

Testing

  • just mobile-check: no issues found.
  • flutter test (full mobile suite): 4460 passed, 49 skipped. No UI change, so no app run.

🤖 Generated with Claude Code

#8965 removed AccountIdentityStore._keys, but keysForNsec (added by #9029,
which merged first) still called it, so main fails flutter analyze. Build
the keys through keysForHex, which applies the same scalar validation.

Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tom Brow <tomb@squareup.com>
@brow
brow requested a review from a team as a code owner November 5, 2026 00:38
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Codex Review Summary

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Review Status Commit Review trigger
📝 Code Review ✅ Completed 2026-11-05T00:40:46.818551Z a489390 PR opened
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@brow
brow requested a review from wesbillman November 5, 2026 00:40
@github-actions github-actions Bot added the codex-security-review-current The posted Codex security review matches its recorded range. label Nov 5, 2026
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🔐 Codex Security Review

Note: This is an automated, security-focused review generated by Codex.
Use it as a supplement to human review; false positives are possible.

Scope

  • Exact PR diff: e558f15faa49a5d9944ee7785b6fa31839ab5af9...a489390fa241b551ba56cf007eb0d31f07f06d60
  • Model: gpt-6.1-sol

💡 Click "edited" above to see earlier reviews for this PR.


Review Summary

Overall Risk: NONE

The one-line fix restores the key-construction path while preserving nsec decoding and secp256k1 scalar validation. No concrete security, correctness, or reliability regressions were found.

Findings

No concrete security, correctness, or reliability findings were identified.

Notes

  • Review used read-only source, caller, test, and history inspection. Builds and tests were not executed, as instructed.

Generated by Codex Security Review |
Requested by: @brow |
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@brow
brow merged commit 3417421 into main Nov 5, 2026
53 checks passed
@brow
brow deleted the fix-mobile-keys-for-nsec branch November 5, 2026 02:47
loganj added a commit that referenced this pull request Nov 5, 2026
## What changes

Mobile now finds a person who has a relay-verified profile (NIP-FI, kind
30382) but never published a kind:0 profile. This happens, for example,
when someone skips profile setup. The relay's `POST /profiles/search`
already finds such people by their verified name. Each one comes back as
a kind:30382 head with no kind:0. Mobile kept only kind:0 results, so
these people did not appear.

- `RelaySessionNotifier.searchProfiles` keeps kind:30382 heads from the
endpoint.
- `VerifiedProfilesNotifier.searched` turns a search page into people:
- If the relay authority is not known yet, it first waits for NIP-11
discovery. Otherwise, a search that finished first would drop these
people for that query.
- It checks each head's signature with the directory's off-isolate proof
checker.
- Proven heads go into the verified directory, so the rows show verified
names right away.
- `searchedPeople` (in `verified_profile.dart`) builds one row per
person, in the relay's order:
  - If the person has a kind:0, the newest kind:0 is used, as before.
- If not, it uses the proven head that the authority signed, provided it
parses as an active verified profile.
- These cases add no row:
  - a head signed by another key;
  - a head that names the relay key but has a bad signature;
  - a retraction;
  - a malformed subject.
- **Behavior change for all mobile mentions:** every verified person now
matches in mention ranking by their verified full name and username, as
well as by display name, including people who have a kind:0. The relay's
search matches these same three names. Without this, a person whose
display name is their username (`glilienfeld`, full name "Gabi
Lilienfeld") came back from the relay for "gabi", and then the local
filter dropped them.
- Callers:
  - Mention search, which also serves Add members and New DM.
  - The user rows in global search, through `directoryUsersFromSearch`.

The desktop app has the same fix for Manage members:
block/buzz-app#2554

## Screenshots

These come from the real Add members sheet on an Android emulator. Only
the relay session, verified-profile discovery and the member actions are
faked. The names are made up. Jordan Park has a kind:0. jrivera has only
a verified profile, with the full name "Jordan Rivera". The search is
"jordan". The row shows the verified display name, which here is the
same as the username.

| Search finds jrivera | After tapping + on jrivera |
| --- | --- |
| <img width="300" alt="jrivera is found next to Jordan Park"
src="https://github.com/user-attachments/assets/d93b77b1-1bc7-4d09-afc1-f359616a192a"
/> | <img width="300" alt="jrivera is selected to add"
src="https://github.com/user-attachments/assets/ce6c7a71-b098-434e-8b0e-ed0de8d1a5a2"
/> |

## Tests

- `add_members_sheet_names_test.dart`: a journey in which Gabi has
`display_name` = `glilienfeld` and `full_name` = "Gabi Lilienfeld", and
NIP-11 discovery is slow.
  - While discovery is pending, typing "gabi" shows nothing yet.
  - When discovery finishes, Gabi appears with no further keystroke.
- A head from another key does not appear, and neither does a head that
names the relay key but has a bad signature.
  - **Add member** adds Gabi's key.
- I removed each fix in turn: the full-name alias, the signature proof,
and the wait for discovery. The journey fails each time, for the
expected reason.
- `verified_profile_test.dart`: a table of `searchedPeople` cases.
  - A kind:0 wins over a head, and the newest kind:0 counts.
- These find nobody: another signer, a retraction, an uppercase subject,
a non-profile kind, and any head when the authority is unknown.
- `relay_session_test.dart` and `channel_management_provider_test.dart`:
rows for the kept heads and the directory row.
- `flutter analyze` is clean, and the full `flutter test` passes on
6efef79: 4,462 tests.

**Note:** mobile on `main` does not compile at e558f15.
`account_identity_store.dart` calls the removed `_keys`. That fix is
#9085. The local runs above had that
one-line fix applied but not committed. Until it lands, mobile CI on
this PR will fail.

## Not covered

- **Search during a reconnect:** discovery starts only when the relay
session is connected. If an HTTP search succeeds while the session is
reconnecting, that search leaves these people out.
- **Discovery failure:** if NIP-11 discovery fails, the search also
leaves these people out.
- In both cases the mention cache keeps that partial page for the query,
and the next search tries discovery again. People who have a kind:0 show
as before. Showing the left-out people when the authority arrives later
would need the cached results to be rebuilt; that is a possible
follow-up.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Logan Johnson <loganj@squareup.com>
Co-authored-by: Larry <627498bd4bd1f281a16431e3c6cce3b5c25b6692798c78672298aefbf2f8f8b5@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

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codex-review — a489390f Deployed Nov 5, 2026 by brow via Run Codex Security Review #12737
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