+
+std::string writeBackFile( const std::string& serial, const std::string& cert, const std::string& keydir );
+
+std::pair<bool, std::time_t> parseDate( const std::string& date );
+std::pair<bool, std::time_t> parseMonthInterval( std::time_t t, const std::string& date );
+std::pair<bool, std::time_t> parseYearInterval( std::time_t t, const std::string& date );
+
+
+std::shared_ptr<std::ofstream> openLogfile( const std::string name);