JPS6339228A - Secret securing system - Google Patents

Abstract

PURPOSE:To further improve capability to secure secret by adding the interval of inputting a password as password information and checking the password and said interval. CONSTITUTION:The titled system includes a password information input part 100 and a password information verifying part 200. Before transmitting the inputted password, the input part 100 sets the reading of a timer to an input time interval. After the inputted digit is incremented since the password was transmitted, the part 100 is waiting until the set input time interval as the reading of the timer expires. The part 100 inputs and transmits the password of the next digit. These procedures are repeated until the last digit. The verify ing part 200 receives and holds password information from the input part 100, and further holds the reception time. That is repeated by the number of the digits of the password. After the entire password is inputted, the reception input time interval is obtained from the reception time, and the received pass word is checked whether it agrees with a registered one. If so, the reception input time interval is checked whether it is included in a registered input time interval permissible range. If so, an access to secret securing information is permitted: otherwise, any access is inhibited.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a security system that requires a personal identification number.

[Conventional collision]

Conventionally, in this type of security system, the input PIN number and the registered PIN number are compared with IIIR, and the PIN number is verified based on whether they match.

FIG. 4 is a flowchart showing a password confirmation method of a conventional m-secure security system.

The security system includes a PIN input section and a PIN verification section.

The PIN input unit initializes the number of input digits at the start of processing (Step 1).Next, when one digit of the PIN is input, the PIN is sent to the PIN verification unit.Step 2) Increment the number of digits by +1 step 3)
, Input #? Determine whether the number is smaller than the number of digits in the PIN (step 4), if it is smaller, return to step 2, then step 3)
, 4. Repeat. If the number of input digits is equal to the number of password digits in step 4, the password input process ends. On the other hand, the PIN verification unit initializes the number of received digits (
Step 11). Next, when one digit of the PIN sent from the PIN entry unit is received (step 12), the PIN is retained (step 13) and the number of received digits is incremented by +1 (step 14), and the number of digits received is It is determined whether or not it is smaller than the number of digits of the password (step 15), and if it is smaller, the process returns to step 12. If the number of received digits matches the number of digits of the PIN, it is determined whether the received PIN and the registered PIN match (step 16). If they match, access to the security system is permitted and If not, the access will be prohibited.

[Problem that the invention seeks to solve]

In the conventional PIN information confirmation method described above, the only information that is input is the PIN number. If the number of digits is not large enough, the PIN number can be found and cannot be kept confidential.

[Means for solving problems]

The security system of the present invention keeps the entered PIN number
A PIN information entry section that sequentially transmits each digit, a registered PIN number, a registered PIN entry time interval, and a registered entry time interval tolerance are stored in advance, and the information is received from the PIN information input section. The registered PIN and the registered PIN match, and the PIN input time interval information calculated from the reception time is within the registered PIN input time interval allowable range. The present invention is characterized by having a password information verification unit that considers the information verification to be normal only when the password is included, and permits access to the security system.

In this way, by adding the password input time interval as password information and checking both the password and the password input time interval, the security ability can be further improved.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a flowchart showing a first embodiment of the security system of the present invention, and FIG. 2 is a block diagram of the main parts of the security system.

The security system includes a password information input section 100 and a password information verification section 200. PIN information input unit 1 of this embodiment
00 is a code in which a process 5.7 for setting a time interval for inputting password information and a time waiting process 6 are added to the password input unit shown in FIG. The PIN information verification unit 200 also stores the registered PIN number, the registered PIN input time interval, and the registration input time interval tolerance range in advance, and performs a process 16 for retaining the time at which the PIN is received from the PIN information input unit 100; Process of calculating the PIN input time interval (hereinafter referred to as input time interval) from the time 17. A step 18 for determining whether the input time interval and the registered input time interval match or do not match is added to the password verification section of FIG. 4.

The password information input unit 100 sets a timer value to the input time interval (step 5 or 7) before transmitting the input password (step 2), and transmits the password (step 2).
), the number of input digits was incremented by +1 (step 3
), the user waits until the input time interval set as the timer value elapses (step 6), then inputs and transmits the next digit of the password (step 2). This is repeated sequentially until the number of digits in the PIN is reached.The PIN information verification section 200 receives and holds the PIN information from the PIN input section 100.Step 12.1
3) Furthermore, the reception time is also retained (step 16). This is repeated for the number of PIN digits, and after all PIN numbers have been input, the reception input time interval is calculated from the reception time (step 17), and the reception PIN is confirmed. Check whether it matches the registered PIN number (step 16); if it does, check whether the reception input time interval is within the registered input time interval tolerance (step 18); if it is within the tolerance range, it is confidential. Allow access to protected information and prohibit access to other information.

FIG. 3 is a flowchart showing the second embodiment.

In the first embodiment described above, the input time interval for each digit of the password is set by the password information input unit 100. Therefore, the time required for inputting the next digit of the password is included in the flowchart of the password information input unit 100 as a waiting time.

However, for example, if the PIN input method is a simple push-button type device, and a person inputs the PIN one digit at a time, or if the PIN and the time interval for inputting the PIN are set in a microcomputer. After that, if the microcomputer mechanically inputs the PIN number into the PIN input section at each PIN input time interval, the time processing corresponding to steps 5 and 6.7 of the first embodiment is performed manually. Or done in a microcomputer. Therefore, the processing of the PIN information input unit 100 includes steps 5 and 6.7.
is unnecessary, and the process is the same as that of the password input section in FIG. As a result, in the second embodiment, the PIN information input section 100 is similar to the conventional PIN input section, and the PIN information verification section 200 is the same as that shown in FIG. In addition, Figure 1,
In FIG. 3, processing such as the detection timing of abandonment of the PIN code is not shown, and the calculation of the reception interval may be performed each time the PIN code is received.

〔Effect of the invention〕

As explained above, the present invention improves the security ability of the system against a malicious person who mechanically generates the password information and checks the password confirmation by adding the password input time interval as the password information. In addition, in systems where the means of entering the PIN number is mechanical,
Since the PIN input time interval can be set to a precise time, the amount of information for each time interval can be considerably increased, and the amount of PIN information increases, which has the effect of further enhancing the security ability.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing a first embodiment of the security system of the present invention, FIG. 2 is a configuration diagram of the security system, and FIG. 3 is a flowchart showing a second embodiment of the security system of the invention. , FIG. 4 is a flowchart of a conventional security system. 100...Password information input section, 200...Password information verification section. PIN information/input section 100
PIN information verification department 200 21st PIN information verification department 200

Claims (1)

[Claims] In a security system, there is provided a PIN information entry unit that sequentially transmits the entered PIN number by digit; The input time interval tolerance range is stored in advance, the PIN number and reception time received from the PIN information input section are stored, and the PIN number and the registered PIN match, and the PIN code calculated from the reception time is stored. The system is characterized by being equipped with a PIN information verification unit that considers the PIN verification to be normal and permits access to the security system only when the number input time interval information is included in the registered PIN input time interval tolerance range. security system.