DEVICE AND METHOD FOR INPUTTING AUTHENTICATION INFORMATION

摘要

PROBLEM TO BE SOLVED: To provide a device and a method for inputting authentication information, with which the leak of authentication information such as password number is prevented and the authentication information can be inputted to a terminal by simple operation. SOLUTION: Account information 51 stored on a card 1 is read by a card terminal 3, authentication information 52 is enciphered by a portable telephone set 2, and enciphered authentication information is transmitted to the card terminal 3.