| 摘要 |
PURPOSE: A computer file security method is provided to prevent the illegal leakage of a computer file by controlling the external leakage of the computer file through communication with a server. CONSTITUTION: A user installs a user security program to a user terminal and an administrator installs an administrator security program to a security server(102). The user selects a desired computer file and requests the copy of the computer file(104). The administrator approves the copy of the received computer file(106). The administrator security program creates an encoded electronic tag, attaches the encoded electronic tag to the computer file, and transmits the computer file to the user terminal(108). |
