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After a correct or new PIN, promoting pending entries and applying waiting
"Require PIN" changes ran in the event of the last PBKDF2 step; 16 waiting
changes tripped the watchdog on the Forerunner 70. ChangeQueue.LockJob now
does it in steps while the PIN screen shows "Checking...", saves what it did
to the results and refreshes the glance after Set PIN too.
The list title decrypted every waiting change at each start. Queue items
are now [action, box] (aad OTPW-Q-2 + action code), so they are counted
without decrypting; 0.9.0 items are still read. A replacement is checked
when it arrives and its material is sealed apart (qm.<n>). Large buffers
are wiped and UTF-8-checked in pieces (Jobs.Wiper, Bytes.utf8Prefix,
SealedBox.openKeep/sealKeep). "Phone changes" reads behind "Reading...",
and Confirm all / Reject all act only on the changes shown. Storage full
no longer stops the app at the PIN.
Found by the review of b8addc8/096b5a4 and a new make watchdog test; the
diff was reviewed again and its findings fixed. fr70: make lint, make test
(176), make watchdog (19 cases at two steps per event), make screenshots
pass; list_locked and list_reset goldens show "Results ready (menu)".
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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With "Show the favourite code in the glance" on, the glance shows the
code of the first favourite TOTP or Steam entry without the PIN, with a
countdown bar. The glance can't open the vault, so the About scan seals
that entry under "g" (device key, aad OTPW-GL-1) after every change, and
removes it when the option is off or no entry qualifies; the glance also
reads the option itself. HKDF moves to its own module so the glance loads
only the crypto it needs (37 % of its 64 KB). Manage entry gains "Mark as
favourite (glance)" and "Remove favourite", queued for locked entries
like the other changes. Lines are inset on round screens so the
Instinct 3's curved glance corner doesn't cut them.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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migrations
Records are one ByteArray each: a readable TLV header plus an
encrypt-then-MAC box whose aad binds the entry ID and the header. The
device key seals unlocked entries and pending items; a random master key,
wrapped under a PBKDF2 PIN key, seals locked ones. Wrong PINs are counted
before the check, with delays on the trusted clock and an uptime fallback.
Bytes.toUtf8 validates UTF-8 first, because the native conversion crashes
on invalid input.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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- Sha512: FIPS 180-4 in Monkey C (no native SHA-512), rotations inlined
with precomputed masks; constants derived from the primes, not typed.
- Hmac: RFC 2104 over SHA-1/256/512 (native HMAC only supports SHA-256).
- Kdf: resumable PBKDF2-HMAC-SHA256 job with calibration bounds
(2,000-200,000 iterations) and HKDF-SHA256.
- Aes: CBC with PKCS#7 over the native cipher; AES-256 chosen.
- SealedBox: encrypt-then-MAC records (HKDF-split keys, length-prefixed
aad, constant-time tag check before decryption).
- SelfTest: known-answer tests for every primitive at start-up.
- Bytes (wipe, constant-time equal), Clock (2038-safe widening, trusted
clock), Jobs (bounded steps against the watchdog, timer runner).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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