IC card portable terminal apparatus
First Claim
1. An IC card terminal apparatus which receives an IC card having a plurality of applications and storing data of the plurality of applications, reads out the data from said received IC card, and displays the readout data, comprising:
- application table means for storing password identification information for identifying passwords of the plurality of applications;
password input means for inputting a password necessary to read out the data stored in said IC card;
current password information storage means for storing the password input using said password input means in a previous password verification operation and password identification information of the password;
selection means for selecting one of the plurality of applications;
comparison means for comparing the password identification information in said current password information storage means with password identification information in said application table means, the password identification information corresponding to the application selected by said selection means;
verification control means for, when comparison by said comparison means indicates that the two password identification information match, causing the received IC card to verify the passwords on the basis of the password in said current password information storage means;
read means for, when the passwords verified by said verification control means normally match each other, reading out the data of the application selected by said selection means from said received IC card; and
display means for displaying the data read out by said read means.
1 Assignment
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Accused Products
Abstract
Password identification information for identifying a password for key verification is set for each of a plurality of applications. A current password storage unit for storing a password which has recently been input and the password identification information of the password is arranged. When one application is selected, password identification information corresponding to the application is verified with the password identification information stored in the current password storage unit. If the two password identification information match, key verification is performed using the password in the current password storage unit. With this operation, a plurality of data can be read out by performing the password input operation once. One or two select keys are arranged in place of a ten-key pad. By repeating an operation using the select keys and the enter key, a password having a plurality of digits is input. Therefore, the password can be input using a minimum number of keys.
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Citations
17 Claims
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1. An IC card terminal apparatus which receives an IC card having a plurality of applications and storing data of the plurality of applications, reads out the data from said received IC card, and displays the readout data, comprising:
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application table means for storing password identification information for identifying passwords of the plurality of applications; password input means for inputting a password necessary to read out the data stored in said IC card; current password information storage means for storing the password input using said password input means in a previous password verification operation and password identification information of the password; selection means for selecting one of the plurality of applications; comparison means for comparing the password identification information in said current password information storage means with password identification information in said application table means, the password identification information corresponding to the application selected by said selection means; verification control means for, when comparison by said comparison means indicates that the two password identification information match, causing the received IC card to verify the passwords on the basis of the password in said current password information storage means; read means for, when the passwords verified by said verification control means normally match each other, reading out the data of the application selected by said selection means from said received IC card; and display means for displaying the data read out by said read means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A password verification method for an IC card terminal apparatus which receives an IC card having a plurality of applications and storing data of the plurality of applications, reads out the data from said received IC card, and displays the readout data, comprising the step of:
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storing password identification information for identifying passwords of the plurality of applications in an application table; storing a password input in a previous password verification operation and password identification information of the password in a current password storage unit; selecting one of the plurality of applications; checking whether the password identification information is present in said current password information storage unit when the application is selected in the selection step; when check reveals that the password identification information is present in said current password information storage unit, comparing the password identification information in said current password information storage unit with password identification information in said application table, the password identification information corresponding to the application selected in the selection step; when comparison in the comparison step indicates that the two password identification information match, causing the received IC card to verify the passwords on the basis of the password in said current password information storage unit; when the passwords verified in the step of causing to perform verification normally match each other, reading out the data of the application selected in the selection step from said received IC card; and displaying the data read out in the read step. - View Dependent Claims (15, 16, 17)
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Specification