JPH10105624A - Telegraphic message enciphering processing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the decipher of enciphered data in a telegraphic message difficult by a third person by adopting the operating method of an automatic machine having a function with which a user can arbitrarily select any method out of plural kinds of telegraphic message enciphering methods set to the automatic machine. SOLUTION: A user selects 'reference of the remainder' for transaction selection, inserts a card and inputs a password number (401-403). An automatic teller machine(ATM) refers to an integrated enciphering pattern and displays an enciphering method selection picture, the user selects any arbitrary enciphering pattern (404) and the ATM enciphers this pattern. The ATM sets an enciphered account number and enciphered key data to the telegraphic message requesting the reference of the remainder and transmits them to a host station (405-406). The host station extracts the account number by deciphering the enciphered number in the received telegraphic message (407). The ATM checks the coincidence between the extracted account number and an account number on the card and when both the numbers are coincident, data in an answer telegraphic message are printed in a detailed statement (412).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation system for encrypting and transmitting a message between an automatic machine and an upper station connected thereto.

[0002]

2. Description of the Related Art Conventionally, there are one type of encryption method unique to a system and an encryption method by setting encryption key data from a host. However, a user selects an encryption method,
There is no method for determining the encryption method based on user input data.

[0003]

Heretofore, the encryption of a message has been performed by a predetermined encryption method / key data determined for each system.

An object of the present invention is to allow a user of an automatic machine to arbitrarily select a method of encrypting a message between the automatic machine and an upper station, or to use input data of the user as encryption key data. Thus, the encryption method used for each transaction can be changed, and the encryption key data can be changed irregularly, making it difficult for a third party to decrypt the encrypted data of the message. it can.

[0005]

The above object has been attained by employing an automatic machine operation system having a function of allowing a user to arbitrarily select from several types of message encryption methods set in the automatic machine. You.

It is also achieved by employing an operation system of an automatic machine having a function of determining a message encryption method based on data input by a user.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the appearance of an automatic teller machine (ATM) embodying the present invention.
The automatic teller machine shown in the figure, the display unit 20 of the transaction content currently executing the service on the vertical surface of the upper part of the main body 10,
It has a card entrance 30 and a passbook / detail slip entrance 40. On the horizontal surface of the table of the main body 10, a coin entrance 50
, A CRT display 60 with a touch panel, and a bill entrance 70. On the front surface of the main body 10, a customer sensor 80 for detecting that the user is standing in front of the main body 10 and a foreign substance return port 90 are provided.

FIG. 2 is a block diagram showing a hardware configuration of the automatic teller machine 1. The control unit 100 is connected to a host system 300 via an interface unit 110. The magnetic card mechanism 120 is a magnetic card unit 122 for reading / writing a magnetic stripe of a bank card.
And an emboss optical reading unit 12 for reading the emboss of the card
4 The passbook printing mechanism 130 includes a passbook printing unit 132
And a magnetic stripe unit 1 for reading a magnetic stripe of a passbook
34, and a statement slip issuing unit 136. The bill depositing / dispensing mechanism 140 manages depositing / dispensing of bills to / from the bill entry / exit 70, and the coin depositing / dispensing mechanism 150 manages depositing / dispensing of the coin entry / exit 50. The journal printing mechanism 160 includes the control unit 10
Data is printed from 0.

The customer operation unit 200 includes a touch panel 202
, A CRT display 204, and a customer sensor 206. The hardware includes the internal operation panel 21
0, a power supply unit 230, and the magnetic disk mechanism 220 stores display screen data of a display described later.

FIGS. 3 to 13 show the processing sequence, display screen, encryption / decryption method, and message format of the first and second embodiments.

(Embodiment 1) A case where a user arbitrarily selects a method of encrypting a message between an automatic machine and an upper station as one of transaction input operations.

Hereinafter, a description will be given with reference to FIGS.

The user selects "balance inquiry" in the transaction selection, inserts a card, and inputs a password (401 to 403).
Next, the ATM refers to the incorporated encryption pattern and displays an encryption method selection screen (see FIG. 4). The encryption method selection screen displays keys for the number of selectable encryption patterns. The user selects “encryption pattern 1” from the displayed pattern keys (404).
The ATM performs encryption using the selected “encryption pattern 1”. As shown in FIG. 5, the encryption pattern 1 performs an exclusive OR operation on the account number (7 digits: 1234567) on the magnetic card and the encryption key data of the pattern 1 (7 digits: ABCDEFG) to obtain the encrypted account number ( 7 digits). The ATM sets the encrypted account number and the encrypted key data in the balance inquiry request message (see FIG. 6) and transmits them to the upper station (405 to 406). The upper station decrypts the encrypted account number in the received message with the decryption key data (encryption key data in the received message) and extracts the account number (see FIG. 7) (407).

Next, the corresponding account is referred to (408), and the account balance is set in the statement print data of the balance inquiry reply message. Further, the encrypted account number encrypted with the encryption key data is set again in the balance inquiry response message (see FIG. 8),
Send to ATM (409-410). The ATM decrypts the received balance inquiry response message with the encryption key data of the encryption pattern 1, and extracts the account number. It checks whether the extracted account number matches the account number on the card (411).

When the transaction accounts match, it is determined that the transaction has been completed, and the statement print data in the reply message is printed on the statement (41).
2). The user receives the released card and statement, and the transaction ends (413).

When the encryption patterns 2 and 3 are selected, since the encryption key data is different from the pattern 1,
The encryption result is different. Therefore, the encryption result differs depending on the encryption pattern selected by the user.

In this embodiment, an encryption method having different encryption key data is selected. However, a method of selecting several types of encryption methods having different operation methods can be considered.

Further, the present invention is applicable not only to the encryption of only the account number in a message but also to the encryption of other items and the entire message.

The encryption key data includes a program fixed value,
It is possible to receive a set value from a higher-level station, to set by an automatic machine attendant process, and the like.

(Embodiment 2) A case where a message between an automatic machine and a higher-level station is encrypted using a password input by a user as key data for encryption.

Hereinafter, description will be made with reference to FIGS.

The user selects "payment" in the transaction selection, and inserts a card, inputs a personal identification number, inputs a payment amount, and confirms the amount (501 to 505). The ATM encrypts the payment amount input with the input password (506). Figure 1
0, the entered payment amount (8 digits: 1200
0 yen) and input password (8 digits: 1234 are arranged twice)
Is an exclusive OR operation to create an encrypted payment amount (8 digits). The ATM sets the encrypted payment amount and the personal identification number in the payment request message (see FIG. 11) and transmits them to the upper station (506 to 507). The upper station extracts the payment amount by decrypting the payment amount in the received message with the personal identification number (see FIG. 12).
(508). Next, the corresponding account is referred to and the account balance at the time of payment is updated (509).

Further, the encrypted payment amount encrypted with the password is set in the payment reply message (see FIG. 13) and transmitted to the ATM (510 to 511).

The ATM decrypts the encrypted payment amount in the received payment reply message with the input password and extracts the payment amount. It checks whether the extracted payment amount matches the input payment amount (512). When the payment amounts match, the transaction is concluded, bills are paid out, and a statement slip is printed (513 to 514).

The user receives the released card, statement, and bill, and the transaction is completed (515-516).

In the present embodiment, the "input password" is employed as the key data for encryption. However, "magnetic card data", "passbook magnetic stripe data", "input amount",
And so on.

In addition to encrypting a part of a message,
The same can be applied to the encryption of the entire message.

It is also conceivable that the first and second embodiments are mixed (a method in which input data is used as key data as one of the encryption methods selected in the first embodiment).

[0029]

According to the present invention, a user of an automatic machine can arbitrarily select a method of encrypting a message between the automatic machine and an upper station, thereby changing the encryption method for each transaction. Since the encryption key data can be varied irregularly, it is difficult for a third party to decrypt the encrypted data of the message.

[Brief description of the drawings]

FIG. 1 is an external view of an automatic teller machine.

FIG. 2 is a hardware configuration of an automatic teller machine.

FIG. 3 is a processing sequence of the first embodiment.

FIG. 4 is an encryption method selection screen.

FIG. 5 is an encryption method according to the first embodiment.

FIG. 6 is an encrypted balance inquiry request message format.

FIG. 7 is a decoding method according to the first embodiment.

FIG. 8 is an encrypted balance inquiry response message format.

FIG. 9 is a processing sequence of the second embodiment.

FIG. 10 illustrates an encryption method according to a second embodiment.

FIG. 11 is an encrypted payment request message format.

FIG. 12 illustrates a decoding method according to the second embodiment.

FIG. 13 is an encrypted payment reply message format.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Cash automatic transaction device 10: Main body 20
Display unit, 30: Card doorway, 40: Bankbook / deposit slip doorway, 50: Coin doorway, 60: CRT display, 70: Banknote door, 80: Customer sensor, 90: Foreign matter return port, 100: Control unit, 110: Interface Reference numeral 120: magnetic card mechanism, 122: magnetic card part, 124: embossed optical reading part, 130: passbook printing mechanism, 132: passbook printing part, 134: magnetic stripe part, 136: statement slip issuing part, 140: bill input / output Gold mechanism, 150: coin depositing and dispensing mechanism, 160: journal printing mechanism, 200: customer operation unit, 202: customer operation panel (touch panel), 204: CRT display,
206: customer sensor, 210: internal operation panel, 220
... magnetic disk mechanism, 230 ... power supply section, 300 ... host system.

Claims (2)

[Claims] 1. An electronic encryption processing system which enables a user of an automatic machine to select a method (incorporating several types) of a message to be transmitted to a higher station in a transaction. 2. An electronic machine which uses data (card data, transaction type, input password, input amount, etc.) input by a user of an automatic machine during a transaction input operation as key data for encrypting a message to an upper station. Encryption processing method.