DATA ACCESSING METHOD

摘要

The method controls data access of users with a multi-level security (MLS) method based on mandatory access control to secure the data in a system. It includes a main memory (2) and a sub-memory (1), a command interpreter (6) connected to the main memory (2) for interpreting the command inputted, a discretionary access control (DAC;5), a multi-level security (MLS;3) for controlling access in multi-level security, an address calculating section (4) of command location for calculating the location of a command, and a file accessing section (7) connected to the command interpreter (6) and the sub-memory (1) for controlling access.