otpGarmin/source/util, branch v0.8.0

test(build): add make watchdog, the glance memory budget and the glance screenshot

2026-10-21T01:55:10+00:00

- make watchdog (in make ci): a stress build encodes, packs, turns into runs and draws the largest code of every 2D symbology at two steps per event on the Forerunner 255S and 70; it fails on a watchdog trip, and the last code left on the screen must decode (bitmap path on the 70). - make memtest checks the glance (DIAG glance, budget 70 % of 64 KB). - screenshots.sh launches the app again after the flow and compares the glance with the favourite's code (glance_code.png on 7 watches); the About goldens show 0.8.0. Co-Authored-By: Claude Opus 5.5

feat(glance): show the favourite code in the glance (opt-in)

2026-10-21T01:55:10+00:00

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

fix(codes): bound every 2D encoding step under the watchdog; draw large codes from runs

2026-10-21T01:55:01+00:00

M6's step sizes were estimates, only exercised with small codes. With the largest inputs the app accepts, every 2D encoder tripped the watchdog on the Forerunner 255S (and the biggest steps were far over the 768 KB watches' limit), so a large code added from the phone would have stopped the app during settings processing at every start. - QR: resumable segmentation, Reed-Solomon, interleaving, function patterns and final mask; mask scoring on rows and columns packed 16 modules per word (same penalties, checked against the per-module rules). - Reed-Solomon: resumable field tables and generator, encoder shifting with native slice. - Data Matrix, Aztec, PDF417: resumable encodation, stuffing, compaction, placement and build; Data Matrix's grid as a byte array (90 KB -> 35 KB); PDF417 refuses text that can't fit the screen before compacting. - Cache format 2 with 16-bit sizes (wide PDF417 was cached wrong); packing in steps; codes drawn as runs, and from a bitmap painted in steps when a frame can't draw all runs. - The job runner does two steps per tick on 768 KB watches; gen_products --check verifies each product's watchdogCount fits that. - CodeView renews full brightness (AMOLED) or the backlight (MIP) for up to a minute from its single ticker; a tap restarts the minute. Co-Authored-By: Claude Opus 5.5

feat(settings): apply the Import form from the phone and show results

2026-10-19T23:51:05+00:00

Import group in the app settings; the processor runs after the first frame and on settings changes, clears the fields, writes the status, remembers form hashes and opens the results screen. Co-Authored-By: Claude Opus 5.5

feat(import): parse otpauth URIs and unencrypted Aegis JSON in resumable steps

2026-10-19T23:51:05+00:00

Streaming JSON tokenizer with depth and length limits and native skipping of long strings; Aegis reader for database versions 1-3 with groups and encrypted-export detection; otpauth parser with ';' separators and Steam; import job with Replace mode, duplicate and replacement checks, a sealed multi-part buffer and a report. Google Authenticator exports deferred. Co-Authored-By: Claude Opus 5.5

feat(ui): add the list, OTP detail, PIN entry, menu, info screens and glance

2026-10-19T20:28:09+00:00

List with live codes and countdowns, adaptive rows and lazy headers; OTP detail with ring or bar, next code and HOTP next; PIN keypad or button selector with create, unlock, change, lockout display and pending promotion; native menu; glance with the entry count; self-test after the first frame; option properties with defaults. Codes are computed one per timer event, apart from drawing, for the watchdog. A UI-test build (uitest.jungle) starts with fake entries, PIN 123456 and a frozen clock. Co-Authored-By: Claude Opus 5.5

feat(storage): add the encrypted vault, PIN keys, lockout, session and migrations

2026-10-19T13:27:37+00:00

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

feat(crypto): add SHA-512, HMAC, PBKDF2, HKDF, AES-256 records and self-test

2026-10-18T21:44:18+00:00

- 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

feat(app): add minimal watch app with smoke test and per-size icons

2026-10-18T19:10:37+00:00

The M0 placeholder app: AppBase entry point, home screen with name and version, debug-only diagnostics (start-up time, memory) and a unit test that runs in the headless simulator. Builds with strict type checking and zero warnings for all 72 products; icons.jungle gives every product a launcher icon of its exact size. Co-Authored-By: Claude Opus 5.5