After unlocking a saved nsec key the user had to re-enter the PIN on every reload,
because the key is only passphrase-encrypted and the in-memory signer is lost on
refresh. Add an opt-in unlocked-key cache with two tiers (maintainer's choice):
- session (default, always): sessionStorage — survives refresh/navigation, cleared
when the tab/browser closes. Same rough exposure as the in-memory signer.
- persistent (opt-in): the unlock prompt now shows a "Keep me unlocked on this
device" checkbox with an inline unencrypted-at-rest warning; when checked the key
is also written to localStorage and survives until site data is cleared.
client.restoreUnlockedSigner(pubkey) re-registers the signer from the cache WITHOUT
a passphrase — it verifies the cached key derives to that pubkey and forgets a
mismatch, so it never adopts another account. It runs proactively from
ensureActiveSignerForPubkey (auto-login/refresh) and lazily from
ensureEncryptionCapableSigner before any prompt, so after a reload the signer is
restored silently and storage/hashtags/DMs/reactions/blocks/subs all just work.
Logout and remove-saved-profile forget the cached key (forgetUnlockedSigner).
SECURITY: while cached, the key is stored decrypted — the passphrase no longer
protects it at rest. Session tier is the default; persistence is opt-in + warned.
Tests: tests/unlocked-key-cache.test.mjs (8 — session vs persistent tiers, promote
persistent->session on read, reject non-hex, forget one, clear all, missing-storage
degrade). Related unlock/switch/session-actor suites green. Lint + build green.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Switching to a saved nsec profile silently failed: switchProfile -> requestLogin -> the
nsec provider was called with no passphrase, so it threw "secret-required" and the switch
was caught+logged with no user feedback. It never prompted for the PIN.
Now handleProfileSwitchRequest detects an nsec target and, before switching, prepares the
stored-key unlock:
- evaluateStoredNsecSwitch(meta, target) (pure) gates on a persisted nsec key for THIS
account (via getStoredSessionActorMetadata); errors clearly otherwise ("log in with its
nsec", "different account's key saved").
- showPasswordPrompt (js/ui/promptDialog.js) collects the PIN/passphrase in a styled
dialog (Promise<string|null>, stacks above modals).
- switchProfile(pubkey, { unlockStored: true, passphrase }) — authService.switchProfile
now forwards unlockStored/passphrase to requestLogin, which routes to the nsec
provider's unlockStoredSessionActor to restore the signer and activate the account.
- Wrong PIN -> "Incorrect PIN/passphrase" toast (decrypt-failed).
So NIP-07 -> nsec switching works fluently. NIP-46 switching is unchanged (follow-up to
verify/extend); multiple-nsec accounts still share one stored slot (follow-up).
Tests: tests/stored-nsec-switch.test.mjs (6), tests/password-prompt.test.mjs (6). Build +
lint clean; auth suites 25/25.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
