JPH0511875A - Security computer - Google Patents

Abstract

PURPOSE:To obtain the security computer which secures the limitations on users, function by function, by eliminating the need to input a password by operating a keyboard by switching inputs from the keyboard to a central processing means to input from a password generating means by a switching means when the password is expected to be inputted. CONSTITUTION:This security computer is equipped with a card reader 8 as an individual code reading means, a collating circuit 11, a password generating circuit 7, and a switch 6. An individual code is read out of a card by a card reader 8 and the collating circuit 11 decides whether the individual code is effective or not, function by function. When it is decided that the code is effective, the password generating circuit 7 generates a password effective for a corresponding function and when the password input is expected, the switch 6 switches the input from the keyboard 3 to the central processing means 1 to the input from the password generating circuit 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security computer, and more particularly to a security computer used for an entrance / exit management system or the like.

[0002]

2. Description of the Related Art FIG. 2 is a block diagram showing a conventional security computer.

In the figure, 1 is a CPU unit which functions as a central processing means, 2 is a display such as a CRT, and 3 is a keyboard which is a key input device.

In the conventional security computer, when the computer is started, the login process is started and the prompt for login is displayed on the display unit 2. Then, when the user logs in to enter the password from the keyboard 3, the function menu is displayed. User has one function,
For example, ID (identification data)
When registration is selected, the password prompt of the function is displayed on the display unit 2. When the user inputs the password corresponding to the function, the function process is activated and the function can be used. Further, when the function processing is completed, the function menu is displayed again, and the user selects the next function again, inputs the password, and uses the next function.

[0005]

The conventional security computer as described above has a password for each of a plurality of functions.

Therefore, each time the user selects a function, he / she must remember a separate password and operate the keyboard 3 to input the password.
The operation was very complicated. Furthermore, there is a risk that the password may be stolen, and the security is lacking in reliability.

Therefore, an object of the present invention is to provide a security computer which does not require a user to input a password by operating the keyboard 3 and can restrict the user for each function.

[0008]

A security computer according to the present invention comprises a personal code reading means for reading a personal code, and a judging means for judging validity / invalidity of a personal code read by the personal code reading means for each function. A password generating means for generating a valid password for the corresponding function when the determining means determines the validity, and a switch for switching the input from the keyboard to the central processing means to the input from the password generating means while waiting for the input of the password. And means.

[0009]

In the security computer of the present invention, the personal code reading means reads the personal code, the judging means judges whether the personal code is valid or invalid for each function, and when the validity is judged, the password generating means makes the corresponding function valid. A new password is generated, and when waiting for password input, the switching means switches the input from the keyboard to the central processing means to the input from the password generating means, so there is no need to operate the keyboard, and it is unique to the user. By operating the card or the like, the password corresponding to the function at each time can be automatically input, and there is no fear that the password will be stolen.

[0010]

EXAMPLES Examples of the present invention will be described below.

FIG. 1 is a block diagram showing a security computer which is an embodiment of the present invention. In the figure, the same reference numerals and symbols as those of the above-mentioned conventional example indicate the same or corresponding components as those of the above-mentioned conventional example.

In the figure, reference numeral 4 denotes a prompt decoder which decodes display data output from the CPU unit 1 functioning as a central processing means to the display unit 2 and identifies from the display data that the prompt is a password input request. To do. Reference numeral 5 is a function number decoder for decoding the display data output from the CPU unit 1 to the display 2, and extracts a function number for requesting a password input from the display data. 6 is a switch for receiving a switching signal from the prompt decoder 4 to switch the contact from c-a to c-b, 7 is a password generation circuit for generating a password corresponding to each function, 8 is a card for reading a personal code from the card Readers, 9a to 9c are ID memories, 9a is an ID memory for function number 1, 9b is an ID memory for function number 2, and 9c is an ID memory for function number 3. Reference numeral 10 indicates I by the function number signal output from the function number decoder 5.
A selector circuit for selecting a corresponding memory block among the D memories 9a to 9c, 11 sequentially outputs addresses to the ID memories 9a to 9c corresponding to the function numbers selected by the selector circuit 10, and outputs the registered ID number. It is a matching circuit that searches and checks whether or not there is a match with the personal ID number read by the card reader 8.

The security computer of this embodiment is configured as described above, and the display data is CPU data when the login process is performed or when the user selects a function from the menu.
Output from the section 1 to the display 2. This display data includes function number information and a prompt. Then, this display data is decrypted by the prompt decoder 4, and when it is identified that the prompt requires password input, a switching signal is output to the switching device 6. In response to this switching signal, the switching unit 6 connects the password generation circuit 7 and the CPU unit 1. The function number decoder 5 also decodes the above-mentioned display data, extracts the function number requesting the password input, and outputs the function number signal to the password generation circuit 7.
And to the selector circuit 10. The selector circuit 10 selects a corresponding memory block from the ID memories 9a to 9c according to the function number signal, and outputs the data output to the matching circuit 11. The matching circuit 11 sequentially outputs addresses to the ID memories 9a to 9c corresponding to the function numbers selected by the selector circuit 10 to search for registered ID numbers,
By checking whether or not there is a match with the individual ID number read by the card reader 8, it is determined whether or not the individual ID number is valid. As a result of this collation, if the personal ID number is valid, a valid signal is output to the password generation circuit 7, the password generation circuit 7 generates a valid password for the function number at that time, and the switch 6
Is sent to the CPU section 1 via. On the other hand, as a result of the collation by the collation circuit 11, if the personal ID number is invalid, an invalid signal is output to the password generation circuit 7, and the password generation circuit 7 outputs an invalid password for the function number at that time. It is generated and sent to the CPU unit 1 via the switch 6. The CPU unit 1 receives the password sent from the password generation circuit 7, performs the same processing as that received from the keyboard 3, and if the password is valid, the function can be used. When the password generation circuit 7 completes the transmission of the password, it outputs a completion signal to the switch 6, and the switch 6 switches the contact from cb to ca and connects the keyboard 3 and the CPU unit 1. .

As described above, the security computer according to the present embodiment has a card reader 8 which is a personal code reading means for reading a personal code from a card, and the card reader 8 described above.
A matching circuit 11 which is a judging means for judging the validity of the personal code read by the (personal code reading means) for each function through the selector circuit 10 and the ID memories 9a to 9c;
A password generation circuit 7 that is a password generation unit that generates a password effective for the corresponding function when the matching circuit 11 (determination unit) determines the validity, and an input from the keyboard 3 to the CPU unit 1 while waiting for the input of the password. A switch 6 which is a switching means for switching the input from the password generating circuit 7 (password generating means) to the CPU section 1.
It has and.

That is, the security computer of this embodiment is
The card reader 8 reads the personal code from the card, and the verification circuit 11 determines whether the personal code is valid or invalid for each function. When the validity is determined, the password generation circuit 7 generates a password effective for the function, and the password is generated. During input standby, the switch 6 switches the input from the keyboard 3 to the CPU 1 to the input from the password generation circuit 7.

Therefore, by operating the card unique to the user, the password corresponding to the function at that time can be automatically input to the CPU section 1. Therefore, unlike the conventional case, the user does not have to remember a separate password each time a function is selected and operate the keyboard 3 to input the password into the CPU unit 1. To be easy. Moreover, there is no risk of the password being stolen, and the user can be surely restricted for each function, so that the reliability of security is enhanced.

In the above embodiment, the card reader 8 for reading the personal code from the card is used as the personal code reading means for reading the personal code, but an IC card reader may be used as the card reader 8.
If the CPU in the IC card device is used to execute the collation for each function and the generation of the password by using the IC card reader, the same effect as the above embodiment can be obtained with a simpler mechanism.

In the above embodiment, the card reader 8 and the matching circuit are used as the personal code reading means for reading the personal code and the judging means for judging the validity or invalidity of the personal code read by the personal code reading means for each function. Although 11 is adopted, a well-known fingerprint reader and fingerprint verification device may be used instead of the card reader 8 and the verification circuit 11. If such a configuration is adopted, a more reliable user restriction function can be realized and security can be further enhanced.

[0019]

As described above, the security computer of the present invention comprises a personal code reading means, a judging means, a password generating means and a switching means, and the personal code reading means reads and judges the personal code. The validity of the individual code is judged for each function by the means, and when the validity is judged, the password generating means generates a valid password for the corresponding function, and at the time of waiting for the password input, the switching means from the keyboard to the central processing means. By switching the input of the above to the input from the password generation means, the password corresponding to the function at that time can be automatically input by the card unique to the user, so that the user can select the function each time. There is no need to operate the keyboard to enter the password each time, and the operation is very easy and the password may be stolen. Since there is no, to each function can ensure the user restrictions, it increases the reliability of security.

[Brief description of drawings]

FIG. 1 is a block diagram showing a security computer according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a conventional security computer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CPU part (central processing unit) 2 Display device 3 Keyboard 4 Prompt decoder 5 Function number decoder 6 Switching device 7 Password generation circuit 8 Card reader 9a-9c ID memory 10 Selector circuit 11 Collation circuit 11

Claims (1)

Claim: What is claimed is: 1. A personal code reading means for reading a personal code, a judging means for judging validity / invalidity of a personal code read by the personal code reading means for each function, and a validity by the judging means. A password generating means for generating a password effective for the corresponding function at the time of determination, and a switching means for switching the input from the keyboard to the central processing means to the input from the password generating means while waiting for the input of the password. A unique security calculator.