Who made the first keys and locks?

Jeremiah Chubb:

Early in the 19th century the British Government offered a prize for the invention of a lock which could be only opened by its own key. The prize was won by Chubb whose lock defined all attempts to be opened by the best picklocks in all the English cells. The ordinary rimlock, which is fixed on the interior doors of most homes and schools, uses the same key, bolt and levers as the lock that Chubb invented. Chubb became famous as the maker of safes; and steel safes bearing his name are still among the best that are used in shop and offices today.