JPH0588771A - Computer system - Google Patents

Abstract

PURPOSE:To improve the safety in a computer system requiring the input of a password at the time of activation. CONSTITUTION:The computer system is provided with a data transmitting means 4 capable of transmitting noncontact data, a card number requesting means 5, and a coincidence discriminating means 6 discriminating the coincidence of the received card number. It is also provided with an ID card 3 sending card numbers by a command from the data transfer means 4. The computer system is started when a password corresponding to the card number of the ID card 3 is inputted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to various computer systems such as workstations and personal computers, and more particularly to a computer system having improved safety.

[0002]

2. Description of the Related Art In a computer system such as a conventional work station, it is necessary to input a login name and a password corresponding thereto as shown in FIG. 6A when starting (logging in). When the password corresponding to the login name is input, for example, the application on UNIX is activated as indicated by the solid line, and when the password is different, the login name is again required to be input as indicated by the broken line. And if you don't enter the login name and the corresponding password, you can't boot. In this way, the safety of the system is improved.

[0003]

However, in such a conventional computer system, anyone can execute the application program if the login name and password are known or decrypted by a third party. In addition, there is a drawback in that it is not known when a password has been decrypted by a third party, so that it is possible to know that a trouble has occurred only when an abnormality occurs in a file or the like. There is also a fear that the password may be changed by a third party.

The present invention has been made in view of the above conventional problems, and it is a technical object of the present invention to ensure that a computer system requiring safety can be activated.

[0005]

As shown in FIG. 1, the present invention discriminates a match between a password entered by a user at the time of start-up and registration data, and performs a predetermined operation only when the passwords match. Which is a computer system for starting data transmission, and performs non-contact data transmission between an ID card 3 having an ID card 3 having a memory 1 holding a card number and a data transmission means 2 for non-contact data transmission. The data transmission means 4 and the card number transmission requesting means 5 for requesting the transmission of the card number data of the ID card.
And a coincidence discriminating means 6 for discriminating whether or not the card number obtained from the ID card through the data transmitting means coincides with the registration number, and the password is required to be inputted at the time of coincidence by the coincidence discriminating means. It is characterized by having done.

[0006]

According to the present invention having such features, when the operation is started, first, the ID card side is requested to send out the card number. Then, the card data of the ID card is contactlessly transmitted to the computer system side through the data transmitting means. Then, it is determined whether the card number obtained from the ID card and the number registered as the card number in advance match, and the password can be input when the match is determined. Then, when the passwords match, the necessary programs are started to improve the safety of the system.

[0007]

2A is a perspective view showing the configuration of a computer system according to an embodiment of the present invention, and FIG. 2B is a rear view thereof. As shown in these figures, the workstation 11 comprises a main body 12 and a display 13. Then, the interface board 14 is inserted into the rear surface of the main body 12 of the workstation. The interface board 14 interfaces with the antenna unit 15 as described later. In addition, the antenna unit 15
Is for contactless data transmission with the ID card 16.

As shown in the block diagram of FIG. 3, the antenna section 15 and the interface board 16 hold a microprocessor (CPU) 21 for controlling writing and reading of data in the ID card 16 and its system program and data. A memory 22 is provided, and an input / output interface 23 for performing input / output with the workstation body 12 is provided. The antenna unit 15 is the CPU 21
It has a modulation circuit 24 that receives data from the output and modulates data to be transmitted to the ID card 16, and a transmitter 25 that is driven by the output. The transmitter 25 outputs the ID signal by outputting the FSK-modulated signal from the coil, for example.
The data is transmitted to the card 16. The reception signal obtained from the ID card 16 is given to the demodulation circuit 27 via the reception unit 26. The demodulation circuit 27 demodulates this signal and gives it to the CPU 21. Here, the modulation circuit 24, the transmission unit 25, the reception unit 26, and the demodulation circuit 27 of the antenna unit 15 constitute a data transmission unit 4 that performs data transmission with the ID card 16. Further, the CPU 21 achieves the functions of the card number transmission requesting means 5 for requesting the transmission of the ID card and the coincidence determining means 6 for determining whether or not the number matches the registered number, as described later.

Next, the structure of the ID card 16 will be described with reference to FIG. In FIG. 4, a transmission / reception unit 31 receives and transmits a signal of a frequency emitted from the antenna unit 15, and its reception output is given to the demodulation circuit 32. The demodulation circuit 32 demodulates this signal, converts the data into the original signal, and gives it to the memory control unit 33. The memory 34 is connected to the memory control unit 33 via a bus. The memory control unit 33 writes or reads data in the memory according to the command and data given from the interface board 14. Then, the data read from the memory 34 is converted into a serial signal and given to the transmitting / receiving unit 31 via the modulation circuit 35. Transmitter / receiver 3
1 gives a signal to the antenna unit 15 side by changing the resonance frequency of the resonance circuit as in the conventional example. Here, the transmission / reception unit 31, the demodulation circuit 32, and the modulation circuit 35 compose the data transmission means 2 that demodulates the data of the command given from the interface board 14 and transmits the read data.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG. First, when the CPU 21 on the interface board 14 side starts the operation, it sends a command of a card number sending request at step 41, and checks at step 42 whether there is a response from the ID card 16. If there is no response, the process returns to step 41 and the same process is repeated. If there is a response, in step 43, the card number of the ID card in the memory of the workstation body 12 is the number registered in the memory of the workstation body 12 or not. Determine whether Here, the CPU 21 performs steps 41 and 42.
In step 43, the function of the card number transmission requesting means 5 is achieved, and in step 43, the function of the match determining means 6 for determining whether or not it matches the registered number is achieved. If this number is not registered, the process returns to step 41 and the same processing is repeated. If it is registered, the process proceeds to step 44 and the workstation body 12 is instructed to display the password input request. Then, the input of the password is displayed on the display 13 of the workstation body 12 (step 44).

Subsequent processing shifts to the workstation side, waiting for the input of the password, and if the password is input, it is determined whether the password is correct. If the password is correct, a predetermined program is started to execute the operation, and if the password is not correct, the password request is waited again and the same processing is repeated. Then, when the execution of the program is completed, an end signal is transmitted to the interface board 14 side.

The interface board 14 waits for the end of the program (step 45). When the program is completed, the usage history, for example, the usage time and usage time, etc., is recorded on the ID card 1.
Write to side 6 (step 46). When the writing is completed, the process returns to step 41 and the same processing is repeated. In this way, only the person who possesses the ID card can use the computer system, and the safety can be improved. Further, since the history and the like are written on the ID card, it is effective when a pay computer system is operated on an hourly basis.

[0013]

As described in detail above, according to the present invention,
Since it cannot be activated unless the user has an ID card, it is possible to improve security as compared with simply inputting a login name and a password when matching the person. Further, since the contactless data transmission is performed, the life of the ID card is semi-permanent, and it becomes clear that the ID card may be stolen when it is lost, and the trouble can be prevented.

[Brief description of drawings]

FIG. 1 is a block diagram showing a functional configuration of the present invention.

2A is a perspective view showing the overall configuration of a computer system according to the present embodiment, and FIG. 2B is a rear view thereof.

FIG. 3 is a block diagram showing a configuration of an interface board and an antenna unit of this embodiment.

FIG. 4 is a block diagram showing a configuration of an ID card.

FIG. 5 is a flowchart showing the operation of the write / read control unit according to the present embodiment.

FIG. 6 is a schematic diagram showing a screen when the conventional computer system is activated.

[Explanation of symbols]

 1 Memory 2, 4 Data Transmission Means 3 ID Card 5 Card Number Sending Request Means 6 Matching Discrimination Means 11 Workstation 12 Workstation Main Body 13 Display Device 14 Interface Board 15 Antenna Section 16 ID Card

Claims (1)

[Claims] 1. A memory that holds a card number in a computer system that determines whether a password entered by a user at the time of start-up matches registration data and starts a predetermined operation only when the passwords match. And an ID card having a data transmission means for performing non-contact data transmission, a data transmission means for performing non-contact data transmission with the ID card, and a card requesting transmission of card number data of the ID card Number transmission requesting means and coincidence determining means for determining whether or not the card number obtained from the ID card through the data transmitting means coincides with the registered number. A computer system characterized by being configured to prompt for a password.