HIGH-SECURITY LOCKING DEVICE

A high-security locking device comprising a lock and a flat key (1) and a flat key (1) in which the lock comprises a cylindrical rotor (2) presenting a slot (3) with rectangular section for the introduction of the flat key (1) and a stator (4) presenting a cylindrical housing (5) for the rotor (2), the lock comprising first and respectively at least second locking/unlocking means of the rotor (2) arranged on the opposite side of the slot (3), the first and respectively second locking/unlocking means comprising a first (14) and respectively a second (16) locking/unlocking member of rotor (2) and at least a first (15) and respectively at least a second (17a, 17b, 17c, 17d) slider housed in the rotor (2) that moves translatably in parallel to the long sides (3a) of the rectangular section of said slot (3), each slider (15, 17a, 17b, 17c, 17d) presenting a feeler member (18, 20a, 20b, 20c, 20d) of an encryption and a member (19, 21a, 21b, 21c, 21d) to enable the locking/unlocking of the rotor (2).