KR20070109488A - The mouse of finger drive ring with nand flash memory - Google Patents

Abstract

A mouse of a finger drive ring with a NAND flash memory is provided to improve security by integrally forming a fingerprint recognition apparatus in the mouse, and to reduce cost by easily adding a mass storage memory to a same USB(Universal Serial Bus) port. A mouse of a finger drive ring with a NAND flash memory(31) includes an optical mouse controller(10), a fingerprint recognizing unit(20) and a security memory unit(30). The optical mouse controller inputs location information in a computer body. The fingerprint recognizing unit acquires and outputs information regarding the fingerprint of a user through a fingerprint sensor installed at one side of the mouse. The security memory unit controls and manages encryption to enable the use of a computer in case of the coincidence of a combination result by comparing and combining the fingerprint of the user read from the fingerprint recognizing unit and the fingerprint information of the NAND flash memory in the mouse.

Description

Fingerprint recognition mouse with built-in security flash memory {THE MOUSE OF FINGER DRIVE RING WITH NAND FLASH MEMORY}

1 is an external view of a fingerprint recognition mouse with a built-in security flash memory according to the present invention,

2 (a) is a front view of a fingerprint driving sensor (fingerprint sensor unit) that is a component of the fingerprint mouse according to the present invention;

Figure 2 (b) is a rear view of the fingerprint driving sensor (fingerprint sensor unit) that is a component of the fingerprint mouse according to the present invention,

Figure 2 (c) is a coupling diagram of the fingerprint driving sensor (fingerprint sensor unit) that is a component of the fingerprint mouse according to the present invention,

3 is a functional diagram of a fingerprint recognition mouse with a built-in security flash memory according to the present invention,

4 is a block diagram of a secure memory circuit of a control engine for storing and reproducing encrypted data in a NAND flash memory according to the present invention;

5 is a circuit diagram illustrating a fingerprint security processing state and a fingerprint recognition state of a USB hub processor for USB communication control through a fingerprint recognition sensor unit according to the present invention;

FIG. 6 is a diagram illustrating a process in which finger print data detected from a fingerprint authentication unit is accessed by a memory security control engine in a NAND flash memory according to the present invention;

FIG. 7 is a diagram illustrating encryption and decryption programming through a stegano process in which a specific information is processed in hardware (H / W) in a memory security control engine according to the present invention and encrypted and hidden in an original file.

FIG. 8 illustrates encryption and decryption programming through a bit cluster image process in which a specific information is processed by hardware (H / W) in a memory security control engine according to the present invention, and then combined and encrypted in units of bits of a predetermined pattern. One embodiment shown.

9 is a firmware of a memory security control engine that enables data storage from the computer main body through user confirmation in the memory security control engine according to the present invention, and exports the data only when permitted. One embodiment showing a micro programming process.

※ Brief description of reference numerals ※

10: optical mouse controller 11: mouse ball

12 roller portion 13 encoder portion

14: calculator 15: controller

16: memory 17: microprocessor

20: fingerprint authentication unit 21: fingerprint sensor unit

22: fingerprint recognition unit 23: security circuit unit

30: secure memory unit 31: NAND flash memory

32: memory security control engine

The present invention is equipped with an encryption system capable of more robust fingerprint recognition through a high-capacity NAND flash memory and a dedicated DSP (Digital Signal Processor) on the optical mouse to completely encrypt important information, and does not standardize its own circuit configuration. The present invention relates to a fingerprint recognition mouse with a built-in high-security flash memory capable of handling triple safety devices in the era of IT piracy.

As the modern industrial society is called the IT era, the speed of informatization has been remarkably advanced in recent years, and the daily work style is rapidly changing from the text-based paper age to the Internet-based electronic age. In this situation, anytime, anytime, anytime, anyone can connect to the world's servers via the Internet, etc., but with the development of the Internet, illegal copying has become obsolete and the information of the other party is leaked in an illegal way. Criminal acts are also on the rise. However, there is a relatively shortage of security systems to prevent such piracy and access. As a method of personal authentication which confirms that a user is the person using the information processing apparatus until now, the authentication method through the registered user ID and a password has been used a lot.

However, as a personal authentication method in which a user inputs a user ID and password, there are problems such as missed input, lost password, and illegal access due to theft of password.

For this reason, a method using a fingerprint with no change in life as a personal authentication method has been studied. As a result of the advance of the fingerprint image input device and the fingerprint combination device, personal authentication by fingerprint combination has been performed in various fields.

As a method of personal authentication at the time of connection to a server, using a separate fingerprint image input device, personal authentication by comparing data combinations of fingerprints registered in advance in the server or the fingerprint authentication server is also performed prior to login. In addition, to cope with the miniaturization of the fingerprint image input apparatus, a method of incorporating the fingerprint image input apparatus into a mouse and reading a fingerprint of a finger brought into contact with the mouse has been developed.

Japanese Patent Laid-Open No. 2000-132261 and Japanese Patent Laid-Open No. 2001-125734 disclose a mouse having a fingerprint detection unit. Further, Japanese Patent Application Laid-Open No. 10-1432700 discloses that a fingerprint detection unit is installed on the mouse body and an IC card reader is installed, and fingerprint information previously recorded on the IC card and fingerprint information detected by the fingerprint detection unit are used. Or the mouse and the computer which combined with the combination means provided in the computer operated with the mouse, performed identity verification, and authorized the operation of the computer are disclosed.

However, fingerprint authentication using a mouse disclosed in this publication is intended to be performed temporarily at the time of login or the like. For example, a combination is performed by fingerprint information previously recorded on an IC card as in Japanese Patent Laid-Open No. 10-143270. In any case, there is a problem that another person can continue the operation by changing the IC card while the mouse operator is leaving the seat.

Considering the accuracy of authentication of the information equipment operator, the fingerprint proves the unique identity, and there is a convenient structure called "fingerprint authentication." The reality is that it is not realized.

In particular, as a large memory used in a computer, there are a hard disk, a DVD, a CD, an SD, a smart media, a memory stick, a micro drive, and all of the above memory access is a common standardized product. The stored data can be accessed through a computer function. Even if it was erased, it could not avoid the security vulnerabilities that could be read electrically in various ways.

Therefore, there is a possibility of hacking of data by writing to a known memory in a computer main body, that is, a hard disk, etc., and problems such as loss and copying have occurred.

The present invention devised to solve the above problems is to configure a fingerprint recognition security function in a mouse in handling and managing important data, and to form a dedicated memory device therein, a small and low-cost NAND flash memory (NAND Flash Memory). It is designed to provide a fingerprint recognition mouse that maximizes security by designing DSP (Digital Signal Processor) for security and encryption processing, and implementing fingerprint recognition and data encryption as an independent device instead of a computer body. have.

In order to achieve the above object, a fingerprint recognition mouse with a built-in security flash memory according to the present invention,

An optical mouse controller for inputting position information into the computer body;

A fingerprint authentication unit configured to acquire and output information about a user's fingerprint through a fingerprint sensor installed at one side of the mouse;

A system on chip (SOC) for control and encryption management to compare and combine the user's fingerprint read from the fingerprint authentication unit with the fingerprint information of the NAND flash memory built into the mouse, and to permit the use of the computer when the combination results match. It is achieved by including a secure memory portion consisting of.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

1 is an external view of a fingerprint recognition mouse with a built-in security flash memory according to the present invention, which is composed of a left button (5) and a right button (6) to one side of the upper end, the left button (5) And a scroll bar 7 having a function as a scroll button used when sliding the position of the screen back and forth or scrolling the screen in the main body of the computer, between the and the right button 6, and the scroll bar 7 ) The recess is recessed so that the operation at the time of fingerprint authentication is easy on the rear end side, and the fingerprint sensor unit 21 is formed at the recessed portion.

The internal configuration of the fingerprint mouse is largely composed of the optical mouse controller 10, the fingerprint authentication unit 20, and the secure memory unit 30.

The optical mouse controller 10 is a roller for detecting rotation in a direction orthogonal to each other in accordance with the rotation of the mouse ball 11 and the mouse ball 11, which are freely rotated and supported to be used for realizing a position input function. The encoder 12, which detects the rotation of the roller 12, and outputs an electrical signal such as a pulse signal, etc., and calculates two systems of electrical signals outputted from the encoder 13 A calculation unit 14 for obtaining coordinate data in a two-dimensional coordinate plane, a control unit 15 for controlling an IC having a USB (Universal Serial Bus) port used in a standard interface method for connecting to a computer main body, and The memory unit 16 stores data transmitted to the computer main body under the control of the control unit 15, and a microprocessor 17 for controlling each part.

The fingerprint authentication unit 20 is a place to obtain and output information about the user's fingerprint through a fingerprint sensor installed on one side of the mouse, which is a fingerprint sensor unit 21 consisting of a fingerprint drive ring (Finger Drive Ring) sensor, Fingerprint that scans, samples, and digitizes the user's fingerprint detected by the fingerprint sensor through an IC with a USB (Universal Serial Bus) port that is used as a standard interface to connect to the computer. A recognition unit 22 and a security circuit unit 23 for controlling the USB (Universal Serial Bus) port and processing a fingerprint recognition algorithm.

The secure memory unit 30 compares and combines the user's fingerprint read from the fingerprint input unit with the fingerprint information of the NAND flash memory built into the mouse, and controls and encrypts the management so as to permit the use of the computer when the combination result matches. The NAND flash memory 31, which stores a system driving code and an operating system program and user data (fingerprint) for a computer system, communicates with the computer main body via the system bus in the first interface manner, and the NAND The micro-program is communicated with the flash memory 31 in a second interface to synchronize with a clock signal generated internally in response to predetermined command information so that a series of information processing operations such as mutual access, encryption, and decryption are performed inside the chip. The memory security control engine 32 is configured.

Such a fingerprint mouse configuration according to the present invention has the same function as that of a conventional mouse and combines an input device function, a fingerprint recognition security processing function, and a secure memory (large capacity) function of an optical mouse. Similar operability is maintained.

Hereinafter, a detailed operation process of the fingerprint authentication unit 20 and the secure memory unit 30, which are components of a fingerprint recognition mouse with a built-in flash memory having excellent security, will be described.

First, the fingerprint authentication unit according to the present invention will be described.

The fingerprint authentication unit 20 is composed of a fingerprint sensor unit 21, fingerprint recognition unit 22, security circuit unit 23.

As shown in FIGS. 1 and 2 (a), the fingerprint sensor 21 drives an image array unit 21a having a sensing area formed in a centered recess and a drive along the circumference of the image array unit. A ring 21b is formed and formed on the rear surface of the image array portion 21a, as shown in FIG. 2 (b), a cylindrical protrusion 21c each consisting of 16 pixels x 192 columns. Is formed in plural.

As illustrated in FIG. 2C, the fingerprint sensor unit 21 has a characteristic of scanning a fingerprint of a user around the image array unit 21a having a central portion.

The fingerprint sensor unit having such a configuration is operated in an idle state after reset. In this idle state, the array power is turned off and clocking stops except for interface activity. In this case, programmed software for driving a fingerprint sensor is required during normal operation for imaging or navigation. After this setup, the operation requested by the user is operated by setting the operation enable bit (Op. Enable Bit) located in registers 80h: D2. That is, when the imaging operation is selected, the fingerprint sensor enters the fingerprint detection mode to check the fingerprint displayed in the program for which the fingerprint detection rate is set.

The default reset value of the fingerprint detection rate is set to a detection period of 10 to 62 ms.

Subsequently, after fingerprint detection, the fingerprint sensor starts a programming operation and enters the imaging mode until the fingerprint is captured. As soon as the fingerprint is captured, the fingerprint sensor returns to Low Power Finger Detect Mode.

That is, if no operation is detected on the system's interface bus for up to 200 milliseconds, the power is reduced due to the suppression of the output function of the internal clock, and the array power is turned off once again.

For example, when an imaging event is performed to image a user's fingerprint, an RF true print signal is performed through a drive ring to capture the user's fingerprint.

That is, as shown in FIG. 1, when a finger is placed on an imaging array located at one side where a chip center side is peeled off, the bottom of the groove of the fingerprint and the convex portion of the fingerprint between the fingerprint pad and the finger surface is placed. By detecting the capacitance difference formed along the leading hole, the trueprint signal is measured through the fingerprint patterns of the leading line and the leading line.

Here, the length of the fingerprint is shorter because the distance between the surface of the finger and the image array portion is shorter, and the capacitance of the length of the fingerprint is larger, and the length of the fingerprint is longer because the distance between the surface of the finger and the image array portion is longer. Longitudinal capacitance becomes smaller. The pattern of the fingerprint can be detected by detecting the capacitance difference between the long lines and the long lines of the fingerprint.

The fingerprint recognition process of the fingerprint recognition unit through the components of the fingerprint sensor unit will be described.

As shown in FIG. 4, the computer main body communicates with the first interface through a USB (Universal Serial Bus) port, receives a fingerprint recognition signal from the computer main body, and transfers the fingerprint recognition signal to the fingerprint registers.

The fingerprint registration unit is connected to a synthesizer to generate a driving frequency of a fingerprint drive ring sensor, or is connected to a scan timing controller to drive an image array unit of the fingerprint sensor unit.

The excitation generator is driven by receiving the frequency of the synthesizer to drive a fingerprint drive ring sensor.

The image array unit of the fingerprint sensor unit is configured of 16 pixels x 192 columns. The image array unit has the property of scanning a user's fingerprint, during which the 16 pixels in a row are powered up, sampled, and converted into 4-bit or 2-bit sizes.

The sensing element of each of the fingerprints (long lines and long lines) scanned through the image array unit is composed of an RF sense amplifier located in the pixel antenna plate.

The RF sense amplifier captures and amplifies a true print signal through a high frequency AC signal composed of 125 KHz to 2 MHz. The amplified trueprint signal is output as pixel data through the AD converter.

Here, the AD converter has a high reference voltage or a low reference voltage connected to one side thereof, and is programmed as a 7-bit DA converter.

Each pixel data thus output is changed to a level corresponding to the reference value of the received signal. In addition, a signal captured from the superior line of the fingerprint may be generated more strongly. At this time, the AD converter plays a role of adjusting a level corresponding to the reference value of the received signal through a high reference voltage or a low reference voltage connected to one side.

The data output through this process is stored in the NAND flash memory and communicated to the computer main body while communicating in the first interface method through a universal serial bus (USB) port.

The security circuit unit 23 is connected to one side of the USB port and operates by receiving a power supply voltage from a 3.3V voltage regulator, and controls communication between the USB port and the computer main body.

Here, the security circuit unit plays a role of processing a fingerprint recognition algorithm. The fingerprint recognition algorithm used in the security circuit unit defines a feature amount by extracting feature points from a fingerprint image acquired by a fingerprint recognition sensor using a feature point. The extraction process is performed and a matching process for determining similarity by comparing two fingerprint images with a defined feature amount.

In the above process, the feature extraction algorithm evaluates the quality of the fingerprint image acquired by the fingerprint recognition sensor, normalizes it through image processing, and then extracts the feature points.

In addition, the fingerprint matching algorithm calculates the similarity of two fingerprints through the alignment process of aligning to the optimal position to compare the matching points of two fingerprints to be compared, the matching process of determining the same feature point after alignment, and the combination of the same feature points. It consists of a discrimination process.

Next, a secure memory unit according to the present invention will be described.

The secure memory unit 30 according to the present invention is a large-capacity NAND flash memory 31 and a dedicated controller for controlling and encrypting a large-capacity data for security management of independent data inside a mouse in order to maximize security management of data. The memory security control engine 32 is configured with a system on chip (SOC).

The NAND flash memory 31 is installed at one side of a fingerprint mouse to store a system driving code and an operating system program and user data (fingerprint, ID, password) for a computer system, which is used not only for data storage but also for system driving. The data area therein includes: an area BC for storing bootstrap codes, an area for storing information about an operating system, an OS for storing ordinary user data, and an area for storing ordinary user data. It is divided into UDs. The storage areas BC, OS, and UD are classified according to the type of data to be stored, and each storage area includes a plurality of pages.

A process of accessing the fingerprint (long line and long line) data detected from the fingerprint authentication unit 20 to the NAND flash memory 31 having the above-described configuration to the memory security control engine 32 will be described.

As shown in Fig. 6, after the data for the page N (any page number) is copied from the NAND flash memory to the buffer unit (Rn), the data of the second page (N + 1) is the NAND flash memory. Data being copied from the buffer unit to the buffer unit (section Rn + 1 in step S450) is transferred from the buffer unit to the memory security control engine (section CRn). That is, after the first page data is copied to the buffer unit (step S420), transmission to the system controller and page read / copy proceed simultaneously (step S450). Similarly, while the data of the second page (N + 1) is transferred from the buffer unit to the memory security control engine (CRn + 1), the data of the third page (N + 2) is copied from the NAND flash memory to the buffer unit (Rn +2). This process is repeated according to the procedure shown in Fig. 6 by predetermined pages (e.g., N, N + 1 and N + 1).

Latency times LATn, LATn + 1, and LATn + 2 are required to read each page when each page is copied from the NAND flash memory to the buffer unit. However, from the viewpoint of the memory security control engine, the read data from the NAND flash memory is used. May be continuously received in a page unit without passing through the aforementioned latency time (about 10 ms; that is, LATn, LATn + 1, or LATn + 2).

The memory security control engine 32 communicates with a computer main body via a system bus in the first interface manner, and communicates with the NAND flash memory in a second interface manner in response to predetermined command information to generate a clock signal generated therein. In synchronization with the microcomputer, a series of information processing tasks such as mutual access, encryption, and decryption are performed in the chip, and it is composed of a dedicated IC (SOC: System On Chip) such as ATA1198.

The memory security control engine 32 includes a host interface unit 320 for communicating with a computer main body via a system bus in a first interface manner as shown in FIG. 5; A register unit (321) for storing organizational information about said computer system and said NAND flash memory and said command information about said NAND flash memory; A buffer unit (322) for storing data of the NAND flash memory; A state control unit 323 synchronized with a clock signal of an oscillator and controlling an internal operation of the interface device in response to the command information; A NAND flash interface unit (324) synchronized with the clock signal and communicating by the state control unit with the NAND flash memory in the second interface method; It is composed of a USB (Universal Serial Bus) device unit 325 for connecting with a computer main body with a standard interface.

The host interface unit 320 exchanges address signals AD, data input / output signals DIO, and control signals CRH and a system bus connected to the system controller to perform an interface function between the computer main body and the system controller. The address signals AD include register units and buffer units composed of SRAMs and address signals for storing data in the NAND flash memory. Data Signals The DIO is programmed in the NAND flash memory or transmitted with data read from the NAND flash memory. Control signals CRH include control signals for operating the interface device. The register unit 321 stores information about a configuration and a command of the computer system in response to the control signals CRW1 and the address signals ADR1 provided through the host interface unit. The data signals DIO1 exchanged between the host interface unit 320 and the register unit 321 are information about such system organization and instructions. The buffer unit temporarily stores data read from the NAND flash memory or programmed in the NAND flash memory in response to the control signals CRW2 and the address signals ADB1 provided through the host interface unit.

Data signals DIO2 exchanged between the host interface unit 320 and the buffer unit 322 are data signals to be read from the NAND flash memory and transmitted to the system controller or data signals to be provided from the system controller to be programmed in the NAND flash memory. .

The register unit 321 and the buffer unit 322 are composed of SRAMs. The register unit 321 includes knitting registers and instruction registers. For example, the organized register may be characterized by the characteristics of the NAND flash memory controlled by the interface device, that is, IO depth (x8 or x16), page size, bit density and error correction. Information such as whether is stored. In the command registers, for example, a write command is performed when a write command is inputted to a corresponding address, and a command start signal CS is applied from the command register to the state control unit. The register unit exchanges data signals relating to system configuration and commands with the state control unit in response to the control signals CRW3 and address signals ADR2 applied from the state control unit 25 for the internal operation of the interface device.

The buffer unit 322 stores the NAND flash memory and data signals (system drive code, read data or program data, encryption) through the NAND flash interface unit in response to the control signals CRW4 and address signals ADB2 provided from the state control unit. , Decrypted data) Replace DIO4.

A state machine 323 performs a function as a central processing unit for managing and controlling the operation of the interface device.

The NAND flash interface unit 324 transfers the command and control signals CRN and address signals ADF for the NAND flash memory provided from the state control unit to the NAND flash memory in a NAND flash interface method, and between the NAND flash memory and the interface device. Relay data exchanges. Thus, the NAND flash memory uses control signals necessary for operation through the NAND flash interface unit, that is, the chip enable signal nCE, the read enable signal nRE, the write enable signal nWE, the write protection signal nWP, the address latch enable signal ALE, and the like. It provides an instruction latch enable signal CLE and address signals ADF, accepts a lady / busy signal R / nB, and exchanges data signals (system drive code, read or program data) DIOF with a NAND flash memory.

As described above, the memory security control engine according to the present invention includes a host interface unit 321, a register unit 322, a buffer unit 323, a state control unit 324, a NAND flash interface unit 325, and a universal serial bus (USB). The fingerprint recognition result is encrypted and decrypted using the characteristics of the device unit 326 to store fingerprint information of an authorized user in a system on chip (SOC).

As shown in FIG. 4, the fingerprint information may be configured through an encryption and decryption process so that the fingerprint information is stored in the NAND flash memory inside the SOC (System On Chip) and cannot be read from the outside.

The process of encryption and decryption occurring inside the chip is a stegano process that processes specific information in hardware (H / W) and encrypts the original file to generate an encrypted image as shown in FIG. 7. As shown in FIG. 8, specific information is processed by hardware (H / W) to generate an encrypted bit cluster image of a predetermined pattern, thereby being encrypted and decrypted.

Here, the stegano process for encryption and decryption is one of the cryptographic methods that are difficult to decipher. By hiding the hidden message in a seemingly plain document, the stegano process does not even know whether it is a message or not. By inserting specific information into the desired picture file, encrypting it to be identical to the original image, and processing it with hardware (H / W) so that it can be differentiated from the existing software (S / W) development method that can be cracked. do.

In addition, the bit cluster image process is also one of encryption methods, which generates an encrypted image in units of bits by H / W processing of any type of document or image information. It ensures robustness so that it is difficult to guess what information is encrypted.

In order to access a large-capacity NAND flash memory, it is necessary to first identify whether it matches the fingerprint information stored inside the SOC (System On Chip), and then to store the data from the computer main body. In order to perform the micro programming, the firmware of the memory security control engine of FIG. 4 is used.

For example, as shown in FIG. 9, the firmware of the memory security control engine enables data storage from the computer main body through user confirmation in the memory security control engine and exports the data only when authorized. The micro programming process as a firmware will be described.

In step S100, the user turns on the computer; before the OS (Windows XP) is booted, requesting an ID (ID) and password (Password) for the user identification and a fingerprint of the user in the memory security control engine ( S110) comes out.

At this time, the user enters an ID and a password. In the NAND flash memory of the fingerprint mouse, the user information corresponding to the input user ID and password is read and transmitted to the memory security control engine (S120).

At this time, if the user does not enter the ID and password within a certain time or enter an invalid ID and unauthorized ID, the input error message is shown to the user and the process returns to the step before rebooting (S130).

Once the user's ID and password are inputted, the user's fingerprint is required. When the user touches the user's fingerprint on the imaging array of the fingerprint sensor part of the mouse, the user's fingerprint is scanned and read by the fingerprint reader of the mouse. Go through the step (S140).

At this time, if the user's fingerprint is not recognized or there is no fingerprint input for a certain time, it sends out a fingerprint recognition error message and goes back to the pre-boot step (S150).

When the fingerprint is scanned on the fingerprint sensor, the fingerprint recognition unit transmits the read fingerprint data to the memory security control engine through the NAND flash memory (S160).

The memory security control engine reads from the read fingerprint information and ID and password, and compares the fingerprint information registered in NAND flash memory with the fingerprint information. Return to (S170).

On the contrary, if the user's fingerprint and the fingerprint registered in the NAND flash memory are the same, the memory security control engine can confirm that the user is the user and save the data from the computer main body, and export the data only when authorized. Can be programmed (S180).

As described above, the firmware of the memory security control engine according to the present invention is inaccessible from the outside and the data can not be accessed without fingerprint recognition, ID, and password, thereby maximizing the security of information handling. .

As described above, in the present invention, a large-capacity NAND flash memory and a memory security control engine are configured as SOCs (System On Chip) to perform microprogramming so that a series of information processing operations such as mutual access, encryption, and decryption are performed in the chip, and the firmware of the firmware is chipped. You can port it inside. The chip thus configured does not provide any interface so that it can not be accessed from the outside, and once stored, the basic firmware can be processed by fusing (stopping the function by burning the memory access function).

As described above, the present invention, the optical mouse with a fingerprint recognition security device in the NAND flash memory and SOC configuration can be widely used in the construction of a security system with excellent security functions by being integrated inside the mouse which is an essential peripheral device of the computer. Cost savings can be achieved by easily adding large amounts of memory to the USB port.

Claims (6)

An optical mouse controller 10 for inputting position information into a computer body, In the fingerprint mouse comprising a fingerprint authentication unit 20 for obtaining and outputting information on the user's fingerprint through a fingerprint sensor installed on one side of the mouse, Compare and combine the user fingerprint read from the fingerprint authentication unit 20 with the fingerprint information of the NAND flash memory 31 embedded in the mouse, and permit the use of the computer when the combination results match. Fingerprint mouse with a built-in security memory, characterized in that comprises a security memory section 30 made of SOC (System On Chip). According to claim 1, wherein the fingerprint authentication unit 20 is a fingerprint sensor unit 21 consisting of a fingerprint drive ring (Finger Drive Ring) sensor, Fingerprint that scans, samples, and digitizes the user's fingerprint detected by the fingerprint sensor through an IC with a USB (Universal Serial Bus) port, which is used as a standard interface for connecting to the computer. A recognition unit 22, Fingerprint mouse with a built-in security memory, characterized in that it comprises a security circuit unit 23 for controlling the USB (Universal Serial Bus) port, and processes a fingerprint recognition algorithm. 3. The fingerprint sensor unit 21 according to claim 2, wherein the fingerprint sensor unit 21 is a convex portion of the fingerprint between the fingerprint pad and the surface of the finger when the finger is placed on an imaging array located at one side of the chip center. A fingerprint mouse with a built-in security memory, characterized in that a trueprint signal is measured through a fingerprint pattern formed by a long line and a long line by detecting a capacitance difference formed along a bottom line of a groove of a fingerprint. 2. The secure memory unit (30) according to claim 1, further comprising: a NAND flash memory (31) for storing system drive codes and operating system programs and user data (fingerprints) for a computer system; Communicate with the computer main body via the system bus in the first interface method, and communicate with the NAND flash memory in the second interface method so as to be synchronized with a clock signal generated internally in response to predetermined command information to mutually access and encrypt. Fingerprint mouse with a built-in security memory, characterized in that composed of a micro-programmed memory security control engine to perform a series of information processing operations, such as decryption, inside the chip. The memory security control engine 32 is a stegano process for processing specific information in hardware (H / W) to encrypt and hide in a picture file; Fingerprint with a built-in secure memory, characterized in that the program is programmed to be encrypted and decrypted through a Bit Cluster Image process that processes certain information in hardware (H / W) and encrypts it into a picture file of a certain pattern. mouse. A step in which the user turns on the computer (S100); (S110) requesting a user's fingerprint and inputting an ID and password for user verification in the memory security control engine before the OS is booted, When the user inputs ID and password, the user's information matching the user's ID and password inputted from the NAND flash memory of the fingerprint mouse is read and transmitted to the memory security control engine (S120). Wow, If the user does not enter the ID and password within a certain time or enter an incorrect ID and unauthorized ID, showing the input error message to the user and returning to the step before rebooting (S130), When the user's ID and password input is completed, the user's fingerprint is requested, and when the user touches the user's fingerprint on the imaging array unit of the fingerprint sensor unit, the user's fingerprint is scanned and read by the fingerprint recognition unit of the mouse. (S140), If the user's fingerprint is not recognized or there is no fingerprint input for a certain period of time, sending a fingerprint recognition error message and returning to the previous booting step again (S150), When the fingerprint is scanned on the fingerprint sensor, the fingerprint recognition unit transmits the read fingerprint data to the memory security control engine through the NAND flash memory (S160); If fingerprint is read from memory security control engine and ID and password are read, and compared with fingerprint information registered in NAND flash memory, if it is not the same, it is judged that the user is not the user, and outputs unknown user error message and before the first boot. Return to step (S170), If the user's fingerprint is the same as the fingerprint registered in the NAND flash memory, the memory security control engine confirms that the user is the user and allows data storage from the computer main body, and exports the data only when authorized. Fingerprint mouse with a built-in security memory, characterized in that consisting of (S180).

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