+ * @param format The format to retrieve the date/time in. See `man 3 strftime`
+ * for more information. If NULL, "%a %b %d %T %Y" is assumed.
+ * @param utc True to convert the time to string as-is, false to convert it to local time first.
+ * @return A string representing the given date/time.
+ */
+ static std::string TimeString(time_t curtime, const char* format = NULL, bool utc = false);
+
+ /** Compare two strings in a timing-safe way. If the lengths of the strings differ, the function
+ * returns false immediately (leaking information about the length), otherwise it compares each
+ * character and only returns after all characters have been compared.
+ * @param one First string
+ * @param two Second string
+ * @return True if the strings match, false if they don't