G
PHYSICS
G
PHYSICS
G06
COMPUTING OR CALCULATING; COUNTING
G06
COMPUTING OR CALCULATING; COUNTING
G06F
ELECTRIC DIGITAL DATA PROCESSING
G06F
ELECTRIC DIGITAL DATA PROCESSING
G06F21/00
Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
G06F21/00
Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
G06F21/60
Protecting data
G06F21/60
Protecting data
G06F21/604
Tools and structures for managing or administering access control systems
G06F21/604
Tools and structures for managing or administering access control systems