JP2008234613A - System for making personal identification number by liquid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a highly reliable personal identification number by the random movement of suspended matter in liquid. <P>SOLUTION: This system is composed of a vessel including the liquid, the suspended matter, an infrared sensor (such as a photointerrupter), a microcomputer PIC, a transmitter (a receiver) for transmitting-receiving the personal identification number, and an interface for transferring the personal identification number. The principle is preserved in the microcomputer with a further complicated numeric value as the personal identification number, by transmitting data to the microcomputer, by sensing the suspended matter (movable by the movement of the liquid) generated by moving the system by the infrared sensor. The data is transferred to the system mounted with the other microcomputer via the interface for transferring its data. At this time, the personal identification number made by the random movement of the liquid is preserved in two systems. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

It relates to all technologies managed by the PIN.

There are a personal identification number created by a person and a personal identification number created by a machine.

A reliable PIN is created by the random movement of floats in the liquid. There is a limit to the reliability of passwords created by humans. This is because the creation and recording of the personal identification number itself means leakage of the personal identification number. If a person creates a password, information about that person is reflected in the password. If a personal identification number is created by a machine, the structure (software) causes restrictions. In this way, it is undeniable that the security code that reflects the characteristics of people and machines can be leaked. Solve all these problems.

This system is composed of a container containing liquid, suspended matter, an infrared sensor (also photo interrupter, etc.), a microcomputer (PIC), a transmitter (receiver) for transmitting and receiving a password, and an interface for transferring the password. The principle is that a floating substance (moved by the movement of liquid) generated by moving the system is detected by an infrared sensor, data is transmitted to the microcomputer, and a more complicated numerical value is stored as a personal identification number in the microcomputer. The data is transferred to a system equipped with another microcomputer via a transfer interface. At this point, the PIN number created by the random movement of the liquid is stored in the two systems. When necessary, the transmitter / receiver is used to output various signals and perform necessary operations only when the passwords match. This system allows you to create a reliable PIN and change it frequently. The data created by the liquid is used in various ways.

It is possible to always create and change a highly reliable password. There is no need to memorize complicated passwords. It is an inexpensive device that does not easily fail, and is easy to manufacture.
It is a convenient size for carrying around.

In the following, an embodiment of a password generation system will be described (see the figure on the next page). The numbers in the sentences correspond to the numbers in the figure.

Random voltage output by infrared sensor (1) Encryption by A / D converter (2) EEPROM (3) (Data storage area in PIC (microcomputer): non-volatile) SPI (transfer system between PICs) Connect master (2) and slave (4) for transfer in (3)
Transfer PIN to slave EEPROM using SPI Save PIN to slave EEPROM Transfer dummy to master Disconnect master and slave.
Connect the master and slave Transfer the slave's PIN to the master's working registry (2) Transfer the EEPROM's PIN to the data memory (2) The master's data memory's PIN and the master's working registry transferred from the slave Comparing passwords If the passwords match, a signal is sent from the master to the slave, and the slave outputs as necessary (5).
Separate the master and slave.
From the second time onward, the above-described flow is looped over and the PIN code of each EEPROM is overwritten.

  It is possible to always create and change a highly reliable password. There is no need to memorize complicated passwords. It is an inexpensive device that does not easily fail, and is easy to manufacture. It is a convenient size for carrying around. It can be applied to all systems, software, equipment, and machines managed by the PIN.

  It is a flowchart of code number creation.   It is the figure which showed the concept of PIN code preparation.

Explanation of symbols

1 Infrared sensor 2 A / D converter 3 EEPROM
4 Slave 5 Required output by slave

Claims (12)

A reliable PIN is created by the random movement of floats in the liquid. The whole system (locking system such as a door) that is activated by the output of this system. It is always easy to create and change a PIN. Security code creation system using infrared or photo interrupter. A system that stores the PIN code created in the previous section in a more complicated manner. A system that collates the PIN code created in the previous section and outputs the necessary output A system that converts random movement into a PIN. The entire software that creates and manages the PIN The entire system for transferring the PIN (including various transfer methods) Overall system related to CCCP that may be used for PIN comparison Overall system for dummy transfers Software and equipment, machines and systems that protect the entire system from anything that attempts to perform an unusual operation on the entire system, and anything that attempts to decode the PIN

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