JP2694823B2 - Information processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing apparatus, and more particularly, to an information processing apparatus having a built-in hardware device antitheft mechanism.

[0002]

2. Description of the Related Art Due to the downsizing tendency of an information processing system, a hardware device such as a disk device, which has conventionally been externally connected to an information processing device by a cable or the like, is built into a housing of a personal computer or the like so that it can be easily attached and detached. Is becoming popular.

In general, a large amount of important data is stored in the built-in hardware device, for example, a disk device, and this confidentiality is one of the important problems. There is a strong demand for the theft prevention of disk devices.

On the other hand, as an antitheft mechanism of this type, for example, a technique disclosed in Japanese Patent Laid-Open No. 31949/1993 is disclosed.

According to this, data (password) is recorded in advance in a storage medium to be stolen, and when this storage medium is attached to an information processing device, it cannot be extracted, and a password recorded in this storage medium from the outside is used. Only when the same data is input can the data be extracted.

[0006]

In the above-mentioned conventional information processing apparatus, although it is possible to prevent the storage medium in which a password is recorded in advance from being stolen, there are cases in which such a password is not recorded. However, there is a drawback in that it is impossible to prevent theft of items that cannot be recorded.

Further, if this password is leaked, it must be re-recorded, and there is a drawback that it cannot be kept complicated.

An object of the present invention is to provide an information processing apparatus having a theft prevention mechanism which can be applied to password-unrecorded and password-unrecorded passwords and can easily change the password. It is in.

[0009]

An information processing apparatus according to a first aspect of the present invention is an information processing apparatus in which a built-in type hardware device is detachably attached and built in, and an input means for inputting data and the built-in type hardware device. Built-in device mounting detection means for detecting mounting of the mounting device and generating a mounting detection signal, locking means for locking the built-in hardware device in a non-detachable manner in response to the supply of the mounting detection signal, and supply of the mounting detection signal Random number generating means for generating a random number as a password in response to, a display means for displaying the supplied password, data stored by the supplied password and the password stored by the input means And a password determining means for generating an unlocking signal when they match, and the built-in hardware in response to the supply of the unlocking signal. It is configured to include a unlocking means for unlocking the location detachably.

An information processing apparatus according to a second invention is the information processing apparatus according to the first invention, wherein the random number generating means generates a random number to be used as a password from time data when the built-in hardware device is mounted. I am trying.

An information processing apparatus according to a third aspect of the present invention is the information processing apparatus according to the first or second aspect of the invention, which has a built-in apparatus failure detection means for detecting a failure of a locked built-in hardware apparatus and generating an unlock signal. It is configured to include.

[0012]

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

FIG. 1 is a block diagram showing an embodiment of an information processing apparatus of the present invention.

As shown in FIG. 1, the information processing apparatus according to the present embodiment includes an input unit 1 for inputting data and a fixed disk device 10 which can be removably attached to the information processing apparatus (an example of a built-in hardware device). ), And a locking portion 7 for locking the fixed disk device 10 in a non-detachable manner from the information processing device.
And an unlocking unit 6 for detachably unlocking the fixed disk device 10 locked by the locking unit 7, and a fixed disk device 10
The disk mounting detection unit 5 that detects that the device has been mounted on the information processing device, the display unit 4 that displays data, the random number generation unit 3 that generates a random number as a password, and the data and password input from the input unit 1. And a fixed disk device failure detection unit 8 for detecting that the fixed disk device 10 has failed.

The operation of the information processing apparatus according to this embodiment will be described with reference to FIG.

First, the operation of mounting and locking the fixed disk device 10 will be described.

When the fixed disk device 10 is mounted on the information processing apparatus and the power is turned on, the disk mounting detection unit 5 detects this and generates a mounting detection signal, and activates the locking unit 7 to activate the fixed disk device 10. Locks irremovably.

On the other hand, the mounting detection signal activates the random number generator 3 to generate one random number, which is sent to the password judgment unit 2 as a password and displayed on the display unit 4 to inform the operator of the password. Close.

The password determination unit 2 stores the password supplied from the random number generation unit 3.

Next, the operation of unlocking the fixed disk device 10 will be described.

The same data as the password specified when locking is input from the input unit 1 and supplied to the password determination unit 2. The password determination unit 2 compares the data supplied from the input unit 1 with the password supplied and stored from the random number generation unit 3 at the time of locking and generates an unlock signal to generate an unlock signal when the passwords match. Supply to.

In response to the supply of the unlocking signal, the unlocking unit 6 unlocks the fixed disk device 10 from the information processing device in a detachable manner.

On the other hand, the fixed disk device failure detection unit 8 detects when the fixed disk device 10 fails and supplies an unlocking signal to the unlocking unit 6. The fixed disk device 1 is detected by the operation of the fixed disk device failure detection unit 8.
In the event of failure of 0, the unlocking operation is performed by the unlocking unit 6 without waiting for the input of the password.
It is possible to take prompt measures such as replacement for 0 failures.

This is particularly effective when any one of the devices in the disk array constituted by a plurality of fixed disk devices each having the anti-theft mechanism fails.

Next, the random number generator 3 will be described.

An example of the random number generated by the random number generator 3 is created by a predetermined calculation from time data (hour, minute, second) when locking. The hour is (10 * A + B) and the minute is (10 * A + B).
* C + D) and seconds are represented by (10 * E + F). Here, A = 0-2, B = 0-9, C = 0-5, D = 0
9, E = 0-5, F = 0-9.

An example of creating a 4-digit password using the numbers A to F will be described below.

The first digit ((C + E + F) ones digit) of the password, the second digit ((C + D) ones digit) and the third digit ((D + F) ones digit) If you specify the 4th digit as (the digit of the first digit of (A + B + C + E)), the password for the time of 23: 41: 3 is 75.
Created as 49.

Next, the locking and unlocking mechanism will be described.

FIG. 2 (a) is a structural schematic diagram of the locking and unlocking mechanism at the time of unlocking, and FIG. 2 (b) is a schematic structural diagram of the locking and unlocking mechanism at the time of locking. ) Shows a partial plan view of the fixed disk device 10.

The unlocking unit 6 is an unlocking control unit 21 for controlling unlocking.
, Plunger 24, spring 23, electromagnetic solenoid 2
The locking unit 7 includes a locking control unit 25 that controls locking, a plunger 28, a spring 27, and an electromagnetic solenoid 26.

The operation of the electromagnetic solenoid 22, the spring 23 and the plunger 24 is such that when the electromagnetic solenoid 22 is not supplied with current, the plunger 24 is projected by the spring 23, but when current is supplied to the electromagnetic solenoid 22, The plunger 24 is attracted against the spring 23 by the electromagnetic solenoid 22. The operations of the electromagnetic solenoid 26, the spring 27 and the plunger 28 are similar to this.

The fixed disk device 10 has a plunger 24.
Fig. 2 shows a locking hole 29 for inserting the
It is provided as shown in (c).

In the initial state, no current is supplied to the electromagnetic solenoid 22 and the electromagnetic solenoid 26, so that both the plunger 24 and the plunger 28 are in a projecting state. However, as shown in FIG. The protruding state is restricted.

The fixed disk device 10 is replaced by the information processing device 30.
When the disk mounting detector 5 is mounted on the disk, the disk mounting detector 5 detects this and supplies a mounting detection signal to the locking controller 2 of the locking unit 7.
5, and the lock control unit 25 supplies a current to the electromagnetic solenoid 26 in response to this. As a result, the electromagnetic solenoid 26 attracts the plunger 28 against the spring 27, and the restriction of the projecting state of the plunger 24 is released, and FIG.
As shown in FIG.
The fixed disk device 10 is inserted into the locking hole 29 of FIG.

This state is maintained even when the power is turned off. When the power is turned off, the plunger 28 is in a protruding state, but the protruding state is restricted by the plunger 24.

Next, when an unlocking signal is supplied from the fixed disk device failure detecting section 8 or the password judging section 2 to the unlocking control section 21 of the unlocking section 6 for unlocking, the unlocking control section 21 receives the unlocking signal. In response to this, electric current is supplied to the electromagnetic solenoid 22.
As a result, the electromagnetic solenoid 22 sucks the plunger 24 against the spring 23 and pulls it out of the locking hole 29, and also releases the restriction state of the protrusion of the plunger 28, which causes the plunger 28 to move as shown in FIG. Conversely, the protruding state of the plunger 24 is restricted and the fixed disk device 10
Will be detachably unlocked from the information processing device 30.

In order to change the password set by the random number generator 3, the set password is unlocked, the power is once turned off, the fixed disk device 10 is once removed from the information processing device 30, and then mounted again. When the power is turned on, a new password is created by the random number generator 3 together with automatic locking.

In this way, the password can be changed easily.

As described above, the information processing apparatus according to the present embodiment sets a random number as a password according to the mounting of built-in type hardware, so that the password is not recorded or cannot be recorded. In addition, it has the effect of preventing theft and easily changing the password.

[0041]

As described above, the information processing apparatus of the present invention sets a random number as a password according to the mounting of built-in type hardware, so that the password is not recorded or cannot be recorded. This has the effect that theft can be prevented and the password can be easily changed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of an information processing apparatus according to the present invention.

2A and 2B are schematic diagrams showing an example of a locking / unlocking mechanism of the information processing apparatus according to the present embodiment, wherein FIG. 2A is a schematic diagram showing an unlocked state, FIG. 2B is a schematic diagram showing a locked state, and FIG. FIG. 3C is a partial plan view of the fixed disk device 10.

[Explanation of symbols]

 1 Input Part 2 Password Judgment Part 3 Random Number Generation Part 4 Display Part 5 Disk Installation Detection Part 6 Unlocking Part 7 Locking Part 8 Fixed Disk Device Failure Detection Part 10 Fixed Disk Device 21 Unlocking Control Part 22, 26 Electromagnetic Solenoid 23, 27 Spring 24, 28 Plunger 25 Locking control unit 29 Locking hole 30 Information processing device

Claims (3)

(57) [Claims] 1. An information processing device in which a built-in type hardware device is detachably mounted, and an input device for inputting data, and a built-in device mounting device for detecting mounting of the built-in hardware device and generating a mounting detection signal. Detection means, locking means for irremovably locking the built-in hardware device in response to the supply of the mounting detection signal, and random number generation means for generating a random number as a password in response to the supply of the mounting detection signal. , A display means for displaying the supplied password is compared with the stored password, and the data input from the input means is compared with the stored password, and an unlock signal is generated when they match. And a unlocking means for detachably unlocking the built-in hardware device in response to the supply of the unlocking signal. An information processing apparatus characterized by the above-mentioned. 2. The information processing apparatus according to claim 1, wherein the random number generating means generates a random number used as a password from time data when the built-in hardware device is attached. 3. The information processing apparatus according to claim 1, further comprising a built-in device failure detecting means for detecting a failure of the locked-in built-in type hardware device and generating an unlocking signal.