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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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- 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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