Abstract: A system and method for inspecting data through file format conversion, which filter out various types of malicious code attached to data, entering into a terminal from the outside and stored in the terminal, by inspecting the data, thereby enabling the stable execution of the data. The method includes a stored file inspection step of converting the file format of a stored file inside the terminal and then restoring the converted file format to an original file format.

Abstract: A system for controlling exit of saved data from a security zone, comprising an access control device, the access control device comprising an access detection module for detecting access of an application to a security zone and access of an application to a general zone, a target checking module for comparing the application, detected by the access detection module, with a list and then controlling access of the application to the security zone and access of the application to the general zone, and a processing control module for controlling writing of data of the application to the general zone.

Abstract: The present invention relates to a secure transmission system and secure transmission method that securely transmit data stored in a computer to different computers via a Local Area Network or the Internet.

Abstract: A system for controlling exit of saved data from a security zone, comprising an access control device, the access control device comprising an access detection module for detecting access of an application to a security zone and access of an application to a general zone, a target checking module for comparing the application, detected by the access detection module, with a list and then controlling access of the application to the security zone and access of the application to the general zone, and a processing control module for controlling writing of data of the application to the general zone.

Abstract: The present invention relates to a secure transmission system and secure transmission method that securely transmit data stored in a computer to different computers via a Local Area Network or the Internet.

Abstract: An application-based access control system is disclosed. The access control system includes a Virtual space of a hard disk in a file form; a VSD drive for processing security-sensitive access control module 50 files within the VSD image file module; an encryption and decryption module for encrypting and decrypting data input/output between the VSD image file module and the VSD drive; a VSD file system module for allowing an operating system to recognize a separate disk volume at a time of access to the security-sensitive files within the VSD image file module; and an access control module for determining access by determining whether an access location is a disk drive or the VSD drive and the application module has been authorized to access a certain file at a time of access to the file, which is stored on the hard disk, to perform tasks in the application module.