ELECTRONIC INFORMATION PROTECTION SYSTEM IN COMMUNICATION TERMINAL DEVICE

摘要

An electronic information protection system capable of ensuring a higher−safety user authentication in an electronic commerce using an information terminal device, characterized by using a communication terminal device that uses a detachable external storage device connected therewith, physically splitting targeted electronic information into two electronic information blocks by means of an electronically tallying means provided in the communication terminal device, and storing the first electronic information block into a communication terminal device body, and the second electronic information block into an external storage device.