+/**
+ * passwd_abort_sha256() - check for a hashed key sequence to abort booting
+ *
+ * This checks for the user entering a SHA256 hash within a given time.
+ *
+ * @etime: Timeout value ticks (stop when get_ticks() reachs this)
+ * @return 0 if autoboot should continue, 1 if it should stop
+ */
+static int passwd_abort_sha256(uint64_t etime)