IC card system

Claim 2

An IC card system characterized by comprising: an IC card terminal (1); an initializing means (8) for storing data defining operation of said IC card terminal (1) and initializing said IC card terminal (1); and a customer IC card (9) used with said IC card terminal (1).

Claim 3

An IC card system according to claim 1, characterized in that said IC card terminal (1) includes first memory means - (14) for storing main program data used for a transaction with a customer and second memory means (15) for storing data defining initialization; said initializing means (8) has an initializing memory (39) for storing the data defining initialization supplied to said second memory means (15); and said customer IC card (9) is used for a transaction with a customer in combination with said IC card terminal (1).

Claim 4

A system according to claim 2, characterized in that said initializing means (8) includes comparing means (36) for terminal administrator identification number (AIN) data, said comparing means (36) being adapted to compare the AIN data and an AIN' entered at said terminal (1), and predetermined data being stored in said terminal (1) when a coincidence is detected by said comparing means (36).

Claim 5

A system according to claim 3, characterized in that the predetermined data is application program data for an IC card holder.

Claim 6

A system according to claim 3, characterized in that the predetermined data is a part of a program for causing said terminal (1) to access said customer IC card (9).

Claim 7

A system according to claim 3, characterized in that the predetermined data includes decryption key code data, said terminal (1) includes decrypting means (21) and comparing means (23) for comparing data decrypted by said decrypting means (21) with predetermined encrypted data, and said initializing IC card (8) includes means (31) for transmitting encrypting data and encrypted data to said terminal (1). 7. A system according to claim 6, characterized in that an encryption algorithm is an RSA algorithm, and the decryption key code is a public key. 8. A system according to claim 3, characterized in that the predetermined data includes application program data for an 10 card holder and decryption key code data, and said terminal (1) includes decrypting means (21), and comparing means (23) for comparing .the decrypted data from said decrypting means (21) with predetermined encrypted data.

Claim 8

A system according to claim 8, characterized in that an encrypting algorithm is an RSA algorithm, and the decryption key code is a public key.

Claim 9

A system according to claim 3, characterized in that said predetermined data is a part of a program for causing said terminal (1) to access said customer IC card (9), said predetermined data includes decryption key code data; said terminal (1) includes decrypting means (21) and comparing means (23) for comparing decrypted data from said decrypting means (21) and predetermined encrypted data, and said initializing IC card (8) includes means (31) for transmitting encrypting data and encrypted data to said terminal (1).

Claim 10

A system according to claim 3, characterized in that an encryption algorithm is an RSA algorithm, and the decryption key code is a public key.

Claim 11

A system according to claim 3, further comprising noncoincidence indicating means (3) for receiving a noncoincidence signal when said comparing means (36) detects a noncoincidence.

Claim 12

A system according to claim 2, characterized by further comprising means (17) for accessing the customer IC card

Claim 13

(9), said accessing means being provided with means (17) for distinguishing the customer IC card (9) from the initializing IC card (8) and accessing the customer IC card (9) when said distinguishing means (17) determines that a card inserted is the customer IC card (9).

Claim 14

(9), said accessing means being provided with means (17) for distinguishing the customer IC card (9) from the initializing IC card (8) and accessing the customer IC card (9) when said distinguishing means (17) determines that a card inserted is the customer IC card (9).

Claim 15

A system according to claim 3, characterized in that said initializing means comprises an initializing IC card (8).

Claim 16

A system according to claim 14, characterized in that said initializing IC card (8) and customer IC card (9) are prepared in conformity with the ISO standard, and said IC card terminal ( 1 ) has a card receiving port (7) commonly used for both said initializing and customer cards.

Claim 17

A'method of using an IC card, characterized by comprising the steps of: applying an initializing means (8) for a terminal administrator into an IC card terminal (1); loading predetermined data in said lC card terminal (1); applying a customer IC card (9) in said IC card terminal - (1); and accessing predetermined processing for the customer IC card (9) on the basis of the predetermined data.

Claim 18

A'method of using an IC card, characterized by comprising the steps of: applying an initializing means (8) for a terminal administrator into an IC card terminal (1); loading predetermined data in said lC card terminal (1); applying a customer IC card (9) in said IC card terminal - (1); and accessing predetermined processing for the customer IC card (9) on the basis of the predetermined data.

Claim 19

A method according to claim 16, characterized in that an AIN is entered with the applied initializing means (8) in said IC card terminal (1) and is identified, and a next'step is initiated when a coincidence signal is obtained.

Claim 20

A method according to claim 16, characterized in that the predetermined data is an application program for a customer so as to perform application service for a customer IC card holder.

Claim 21

A method according to claim 16, characterized in that the predetermined data is a part of a program for accessing the customer IC card in said terminal (1), and said terminal (1) receives the predetermined data to execute the program for the customer IC card (9).

Claim 22

A method according to claim 16, characterized in that the predetermined data is the decryption data, and the encrypted data from the customer IC card (9) is decrypted by said terminal (1) so as to determine validity of the customer IC card (9).