message: use USK as we'll only have that around when using key sharing
diff: @@ -29,8 +29,8 @@ export async function enable4SIfNeeded() {
  if (!cli.isCryptoEnabled() || !SettingsStore.isFeatureEnabled("feature_cross_signing")) {
  return false;
  }
  - const masterPK = cli.getCrossSigningId();
  - if (!masterPK) {
  + const usk = cli.getCrossSigningId("user_signing");
  + if (!usk) {
  await accessSecretStorage();
  return false;
  }
  