JP4560119B2 - Screen saver display method and information processing system - Google Patents

Description

  The present invention relates to a display method of a screen saver, and in particular, displays a message specified by a user on a display screen of a screen saver lock that is started when a user authentication device (UAD: User Authentication Device) such as an IC card is removed. The present invention relates to a screen saver display method and an information processing system.

  In a personal computer (personal computer), a screen saver that operates when there is no input for a specific time from an input device such as a keyboard or a mouse is well known to prevent screen burn-in.

  In recent years, to enhance security, the PC can be operated only when a genuine IC card is inserted in the card reader / writer of the IC card connected to the PC, and a screen saver is started when the IC card is removed. In some cases, when a genuine IC card is inserted again, the personal computer can be operated. This is a so-called screen saver lock technology. That is, when the IC card is removed, the screen saver screen is displayed and the operation of the personal computer is locked.

  Instead of the IC card, a USB token that can be directly inserted into a USB (Universal Serial Bus) of a personal computer may be used.

  As for the prior art of the screen saver for enhancing the security, there is JP-A-2001-331235 “Information processing apparatus” published on November 30, 2001 (see Patent Document 1).

JP 2001-331235 A

  However, with conventional screen savers for preventing burn-in and security-related screen savers, it is troublesome to prepare characters in order to display characters on the screen saver display screen. It is not possible to display characters that indicate the destination, etc., characters that indicate the scheduled return time, etc., or characters that indicate the status of the personal computer, etc., and the message property to the surroundings is not effectively used was there.

  The present invention has been made in view of the above circumstances, and in a screen saver that is activated when an IC card or the like is removed, characters that are arbitrarily input by a user can be displayed by a simple operation at the time of activation of the screen saver. It is an object of the present invention to provide a screen saver display method and an information processing system that can easily inform a third party of a user's destination, return time, PC status, etc., and improve user convenience. And

  In addition, the present invention realizes an input lock by a screen saver by removing an IC card or the like, and determines whether or not the screen saver can be unlocked by inserting an IC card or the like. Since the password input screen is displayed, it is an object of the present invention to provide a screen saver display method and an information processing system that can improve the security of the computer and can smoothly release the screen saver lock.

  The present invention for solving the problems of the above-described conventional example is a screen saver display method for displaying a screen saver on the display unit of the processing device and locking the processing in the processing device when the connection of the personal authentication device is not recognized. When a specific key that is set in advance within a specific time after the connection of the personal authentication device is not recognized is displayed, a screen that enables input of arbitrary characters is displayed, and when the input characters are confirmed on the screen, The character content is displayed on the screen saver screen, and a default display character is displayed on the screen saver screen unless a preset specific key is input within a specific time.

  In the screen saver display method, the present invention displays a preset character content on a screen that allows an arbitrary character to be input, and confirms the input character by overwriting the input character with respect to the displayed character content. It is characterized by that.

  In the above screen saver display method, when the connection of the personal authentication device is recognized, it is determined from the identification information of the personal authentication device whether the screen saver display can be canceled, and if it can be canceled, a password input screen is displayed. When a simple password is input, the processing in the processing device is resumed.

  The present invention is an information processing system that monitors a personal authentication device and locks the processing in the processing device by displaying a screen saver on the display unit of the processing device when the connection of the personal authentication device is not recognized. A screen that allows a user to input an arbitrary character when a specific key for displaying a screen that allows characters to be input is determined in advance and the connection of the personal authentication device is not recognized and the specific key is input within a specific time. Is displayed on the display unit, and when the input character is confirmed on the screen, the content of the character is displayed on the screen saver screen. If the preset key is not input within a specific time, the default display character is displayed on the screen saver. It has the control part displayed on a screen, It is characterized by the above-mentioned.

  According to the present invention, in the information processing system, the control unit presets the character content to be displayed and overwritten on a screen that allows arbitrary characters to be input, and inputs the character content displayed on the screen. It is characterized by confirming the input character by overwriting the character.

  In the information processing system, when the connection of the personal authentication device is recognized in the information processing system, the control unit determines whether the screen saver display can be canceled based on the identification information of the personal authentication device. It is displayed on the display unit, it is determined whether or not the input password is appropriate, and if the password is appropriate, the processing in the processing device is returned.

  According to the present invention, there is provided a screen saver display method for displaying a screen saver on the display unit of the processing device and locking the processing in the processing device when the connection of the personal authentication device is not recognized, and the connection of the personal authentication device is not recognized. When a specific key set in advance within a specific time is input, a screen that allows the input of arbitrary characters is displayed. When the input character is confirmed on the screen, the content of the character is displayed on the screen saver screen. If a preset key is not input within a specified time, the default display character is displayed on the screen saver screen, and the user is identified by displaying the arbitrarily entered character content on the screen saver screen. It is possible to transmit messages to the surrounding people and save space and paperless.

  According to the present invention, when the connection of the personal authentication device is recognized, it is determined from the identification information of the personal authentication device whether the screen saver display can be canceled, and if it can be canceled, a password input screen is displayed and an appropriate password is input. Then, since the screen saver display method for returning the processing in the processing device is used, there is an effect that the return processing can be performed smoothly.

  According to the present invention, there is provided an information processing system that monitors the personal authentication device and locks the processing in the processing device by displaying a screen saver on the display unit of the processing device when the connection of the personal authentication device is not recognized. If a specific key for displaying a screen that allows arbitrary characters to be input is determined in advance, and if the specific key is input within a specific time after recognizing the connection of the personal authentication device, any character can be input When the input character is confirmed on the screen, the content of the character is displayed on the screen saver screen, and the default display character is displayed unless a preset specific key is input within a specific time. Is displayed on the screen saver screen. Characters entered arbitrarily are displayed on the screen saver screen to identify the user. And can transmit the message to the people around it, there is a space-saving effect that can achieve paperless.

  According to the present invention, when the connection of the personal authentication device is recognized, the control unit determines whether the screen saver display can be canceled based on the identification information of the personal authentication device, and displays the password input screen on the display unit if it can be canceled. Therefore, it is determined whether the input password is proper. If the password is proper, the information processing system that restores the processing in the processing apparatus is used. Therefore, the restoration process can be smoothly performed.

Embodiments of the present invention will be described with reference to the drawings.
In the embodiment of the present invention, a computer can be used in a state in which a device such as an IC card (person authentication device: UAD) is set in a reader such as a card reader / writer, and the IC card is removed to authenticate the user. If the device connection (including not only physical connection but also wireless communication connection) is not recognized, the screen saver screen will be displayed and the information cannot be input to the computer. When a specific key is pressed, a specific character set corresponding to the key is displayed on the screen saver screen. As a result, when the user removes the IC card and displays the screen saver screen, the user can display a character selected from the set characters or an arbitrarily input character, and identify the person himself to the surrounding people. For example, it is possible to transmit information such as a destination, a return time, a computer status, etc., and to realize space saving and paperless.

[Outline of this system]
An information processing system (computer system) according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a configuration block diagram of an information processing system according to an embodiment of the present invention.
As shown in FIG. 1, an information processing system (this system) according to an embodiment of the present invention includes a processing device 10 and a server 1 connected via a network 50. The processing device 10 includes a display unit 20 and a card. A reader / writer 30 and a keyboard 40 are connected.
A database 2 is connected to the server 1.

[Parts of this system]
Each part of this system will be specifically described.
[Processing device 10]
The processing device 10 includes a control unit 11 realized by a CPU (Central Processing Unit), a main memory 12 that operates by temporarily loading a program, and a storage unit 13 that stores various processing programs or data, tables, and the like. And an interface 14 for connecting to an external device and a network.
The interface 14 is originally provided corresponding to each external device, but in FIG. 1, the interface 14 is described as one unit for the sake of simplicity.

The control unit 11 reads the processing program from the storage unit 13, loads it into the main memory 12 and expands it, and enables the processing program to operate.
The means realized mainly by the control unit 11 are a monitoring processing means, a pre-screen saver, a screen saver, and a screen saver setting manager.
Details of each means will be described later.

The main memory 12 is a memory that temporarily stores programs and data for program execution.
The storage unit 13 is realized by a hard disk or the like, and stores various processing programs, data, and various tables.
In particular, the storage unit 13 stores a display character setting table in which characters to be displayed on the screen saver display screen are set in advance.
In the above example, the display character setting table is stored in the storage unit 13 of the processing device 10. However, the display character setting table may be stored in the DB 2 and accessed by the processing device 10 via the network 50 and the server 1. .

[Display character setting table]
The display character setting table will be described with reference to FIG. FIG. 2 is a schematic diagram of a display character setting table.
As shown in FIG. 2, the display character setting table stores keys and display contents in association with each other. For example, “101 conference room” and character key “E” correspond to the numeric key “1” key. “Meal” is stored corresponding to the key.

When the IC card 3 is removed from the card reader / writer 30 and the pre-screen saver operates and the above key is pressed within a specific time (settable by the screen saver setting manager), the corresponding character is displayed on the screen saver display screen. It is.
For the “space” key, a default value (default character) set in the screen saver setting manager is displayed, and the default character can be overwritten.

[Display unit 20]
The display unit 20 displays a screen saver screen. When a key is input from the keyboard 40 by the user within a specific time, the display unit 20 displays characters set corresponding to the key on the screen saver screen.

[Card reader / writer 30]
The card reader / writer 30 reads information on the IC card 3 and writes information on the IC card 3. That is, it is an input / output device that inputs / outputs data to / from a personal authentication device such as an IC card.
Processing between the IC card 3 and the processing device 10 will be described later.
Instead of the IC card 3, a USB token directly connected to the USB port may be used.

[Keyboard 40]
The keyboard 40 is an input device that performs input to the information processing apparatus 10, and in particular, the IC card 3 is removed from the card reader / writer 30 and the prescreen saver operates, and is registered in the display character setting table within a specific time. When a certain key is pressed, the corresponding character is displayed on the screen saver display screen.

[Server 1]
The server 1 is connected to the processing apparatus 10 via the network 50 and is also connected to a database (DB) 2.
In FIG. 1, one processing apparatus 10 is connected to the server 1, but this is for simplifying the description, and actually, a plurality of processing apparatuses 10 are connected to the server 1.

The server 1 manages the DB 2, stores information about the user of the processing device 10 in the DB 2, and stores history information such as user login and logout in the DB 2.
When the display character setting table is stored in the DB 2, the server 1 substantially performs the processing in the present invention, and the processing device 10 receives data from the server 1 and displays it on the display unit 20. The data is input from the input unit such as and transmitted to the server 1.

[IC card 3]
The IC card 3 is a personal authentication device and stores at least an identifier. As the personal authentication device, a device that performs fingerprint authentication and other physical features can be considered. Further, instead of the authentication device, a device that simply hooks a screen saver (prescreen saver) may be used.

[Login processing]
A process of logging in to an OS (Operating System) in this system will be described.
When the processing apparatus 10 that is a computer is turned on, the personal authentication program operates before the OS starts up and starts up, and the control unit 11 determines whether the IC card 3 is inserted in the card reader / writer 30. If not inserted, the display screen of the display unit 20 prompts the user to set the IC card 3 in the card reader / writer 30.

  If the IC card 3 is set in the card reader / writer 30, the user is prompted to input a password on the display screen of the display unit 20. If the password is input, is the password appropriate for the identification information of the IC card 3? If the password is correct, login is permitted.

  The IC card 3 stores the previous logout time in addition to the identification information. The same time is stored in the storage unit 13 of the processing device 10, and whether or not the times match in the personal authentication program is checked. Otherwise, the IC card 3 is a counterfeit card, and login is not permitted.

  In the above example, the login processing is performed by the processing device 10, but necessary data may be stored in the DB 2 and the substantial login processing may be performed by the server 1.

[Screen saver lock processing]
Next, the screen saver lock process will be described.
When the IC card 3 is removed from the card reader / writer 30 in order to leave the user in the logged-in state, the time is instantly stored in the IC card 3 and the same time is also stored in the processing device 10.
Then, when a key set in the display character setting table is input from the keyboard 40 within a specific time, the corresponding display content set in the display character setting table is displayed on the screen saver screen.

  If the setting key is not input within a specific time, the default display character set in the screen saver setting manager is displayed on the screen saver screen.

In addition, if you forget the correspondence between the setting key and the displayed content, you can refer to the correspondence between the setting key and the character displayed on the screen saver by pressing the escape (Esc) key. When a setting key is pressed, the corresponding display contents are displayed.
A screen showing the correspondence between the setting keys and the characters displayed on the screen saver is shown in FIG. FIG. 4 is a schematic diagram of a screen showing the correspondence between keys and characters displayed on the screen saver.
An indicator is provided at the bottom of the screen of FIG. 4 so that key input is accepted within the time until the indicator scale is full, and key display is not accepted when the time is over and the default display characters are displayed on the screen saver screen. It has become.

Further, when the “space” key is pressed within a specific time from when the IC card 3 is removed from the card reader / writer 30, the default value of the display character input set by the screen saver setting manager is displayed. Since the default value is displayed in the overwrite mode, the default value can be used if it is entered at a required location.
For example, if the default value is “HH: MM scheduled to return to work”, the “scheduled return to work” can be used as it is by changing the first “HH: MM”.

A screen displayed by pressing the “space” key is shown in FIG. FIG. 5 is a schematic diagram of a display screen when the space key is pressed.
In the display screen of FIG. 5, there is no time restriction, and it is possible to input with sufficient margin until a character is input and confirmed with the “Enter” key.
When a character is input and the “Enter” key is input, the input character is displayed on the screen saver screen.
In this way, the screen saver screen is displayed and the processing of the processing device 10 is locked.

  In the above example, the screen saver lock process is performed by the processing device 10, but necessary data may be stored in the DB 2 and the server 1 may perform the substantial screen saver lock process.

[Screen saver release processing]
In the screen saver release process, when the user returns to the seat and inserts the IC card 3 into the card reader / writer 30, the identification information and time information (time information at the time of extraction) of the IC card 3 can be read and the screen saver can be released. It is determined whether or not the IC card 3 is used.

  If the screen saver release is a condition setting that cannot be canceled unless it is the same as the IC card 3 when the screen saver is locked, the identification information of the IC card 3 and the identification of the IC card in which the time information is stored in the storage unit 13 of the processing device 10 If the information and time information do not match, the screen saver release is rejected.

  Further, if the condition setting is such that the screen saver can be released even with the privileged IC card, the identification information of the privileged IC card is read and inserted in comparison with the identification information of the privileged IC card preset in the processing device 10. If the obtained IC card is recognized as a privileged card, it is determined that the screen card can be canceled.

  If the IC card 3 is capable of canceling the screen saver, a screen prompting the user to input a password is displayed on the display screen of the display unit 30. If an appropriate password is input, the screen saver is canceled and the screen before the cancellation is restored. Let That is, the processing in the processing device 10 is restored. In addition, the screen saver is not canceled unless an appropriate password is input.

  In the above example, the screen saver canceling process is performed by the processing device 10, but necessary data may be stored in the DB 2 and the server 1 may perform the substantial screen saver canceling process.

[Screen Saver Settings Manager]
Next, there is a screen saver setting manager as means for causing the control unit 11 to execute the processing program stored in the storage unit 13 of the processing apparatus 10 and realizing it.
The function of the screen saver setting manager registers a key and a display character in the display character setting table of FIG. 2, and specifies a default display character (character content to be displayed when the setting key is not pressed within a specific period). , Set the time to start the screen saver, set the default value of the display character input (character content displayed when the user overwrites any character), and also allows the setting not to accept shortcut key input, With respect to the security information, it is possible to set either the screen saver can be canceled only for the same UAD or the screen saver can be canceled by a privileged card.

The set contents are stored in the storage unit 13.
The setting content may be stored in DB2. In this case, the processing of the screen saver setting manager may be executed by the server 1.

FIG. 3 shows a display screen for setting with the screen saver setting manager. FIG. 3 is a schematic diagram of a screen saver setting screen.
As shown in FIG. 3, on the left side of the screen, it is possible to input shortcut keys and display contents to be set in the display character setting table. On the upper right side of the screen, whether or not default display characters and shortcut keys are accepted as screen displays. The screen saver start time and display character input default values can be input. On the lower right side of the screen, conditions for canceling the screen saver can be set as security information.

[Monitoring means]
Next, there are a monitoring processing unit, a pre-screen saver, and a screen saver as means for causing the control unit 11 to execute the processing program stored in the storage unit 13 of the processing apparatus 10 and realizing it. Processing executed by each means will be described.

The monitoring process in the monitoring processing means realized by the execution of the control unit 11 will be described with reference to FIG. FIG. 6 is a flowchart of the monitoring process.
First, the monitoring processing means constantly monitors the end of the OS and the IC card insertion / removal state in the card reader / writer 30.

The monitoring unit determines whether or not the OS is terminated (S1). If the OS is terminated (Yes), the monitoring process is terminated.
If the OS is not finished (in the case of No), it is assumed here that the IC card 3 has been inserted, so it is determined whether or not the IC card 3 has been removed from the state in which the IC card 3 has been inserted. Determine (S2).
If the IC card 3 is removed in the process S2 (in the case of Yes), next, a prescreen saver is activated (S3).

  Then, code signing for the pre-screen saver is performed (S4). In this code signing, the pre-screen saver holds an encryption key, and the monitoring processing means holds a corresponding decryption key. When a random number is issued from the monitoring processing means to the pre-screen saver, the pre-screen saver Encrypts the random number with the encryption key and returns it to the monitoring processing means. Then, the monitoring processing means decrypts the encrypted random number with the decryption key, and recognizes that an appropriate prescreen saver is operating when the issued random number matches the decrypted random number.

  Here, if the issued random number and the decrypted random number do not match, it is assumed that an appropriate pre-screen saver is not operating, and the screen saver is activated and code signing is performed to perform normal screen saver lock processing.

  If the code signing in the process S4 is normally performed, then the pre-screen saver and the screen saver operate to change the display screen to the screen saver screen, and the screen saver is locked. Subsequently, the monitoring processing means determines whether the OS has ended and whether the IC card 3 has been removed from the card reader / writer 30 (S2).

If the IC card 3 has not been removed from the card reader / writer 30 and has been inserted (in the case of No), the monitoring processing means determines whether or not the screen saver is being activated (S5). ).
If the screen saver is not being activated (No), the process returns to S1.
If the screen saver is being activated (in the case of Yes), the monitoring processing means displays a PIN (Personal Identification Number) input screen (S6), and determines whether or not the input PIN is appropriate (S7).

If the input PIN is not appropriate (No), the user is prompted to enter the PIN again.
If the input PIN is appropriate (Yes), the screen saver lock is released (S8), the display screen before the screen saver lock is restored, and the process returns to S1.

[Prescreen saver]
The prescreen saver process in the prescreen saver realized by the execution of the control unit 11 will be described with reference to FIG. FIG. 7 is a flowchart of the prescreen saver process.
When the prescreen saver is activated by the monitoring processing means, it performs code signing from the monitoring processing means (S11). The code signing is performed as described above.

When code signing is normally performed, a specific time is started using a timer provided in the control unit 11 (S12). The specific time is set by the screen saver setting manager.
Then, it is determined whether or not there is a set key input (S13). If there is no key input (in the case of No), it is determined whether or not the specific time has been counted (S14), and the process has ended. If not (No), the process returns to the key input determination in step S13.
If the specific time count has ended in the determination process S14 (in the case of Yes), the screen saver is activated (S17), and the process ends.

  When there is a key input set in step S13 (in the case of Yes), an input key determination process is performed to determine which key has been input (S15). Then, referring to the display character setting table, the display character corresponding to the determined input key is selected and set for display (S16).

If the input key is an “escape” key, the screen shown in FIG. 4 is displayed, and the process proceeds to step S16 after waiting for a key input within another specific time.
If the input key is the “space” key, the screen shown in FIG. 5 is displayed, the default value of the display character input is overwritten, the input confirmed character is set for display, and the process goes to step S17. Transition.

  Then, the screen saver is activated to display the screen saver screen using the display characters set for display or the default display characters (S17).

[Screen saver]
Screen saver processing in the screen saver realized by execution of the control unit 11 will be described with reference to FIG. FIG. 8 is a flowchart of the screen saver process.
The screen saver is activated by the pre-screen saver and performs code signing from the pre-screen saver (S21).

  In code signing, the screen saver holds an encryption key, and the pre-screen saver holds a corresponding decryption key. When the pre-screen saver issues a random number to the screen saver, the screen saver uses the encryption key to generate a random number. Encrypt and send it back to the prescreen saver. Then, the pre-screen saver decrypts the encrypted random number with the decryption key, and recognizes that an appropriate screen saver is operating when the issued random number matches the decrypted random number.

  Here, if the issued random number and the decrypted random number do not match, the screen saver screen using the default display character is not displayed and the screen saver screen is not displayed using the character set in the pre-screen saver, because the proper screen saver is not operating. Make the display.

When the code signing is normally performed, the screen saver performs screen saver screen display using the set characters (S22).
Then, the screen saver monitors (determines) whether there is an interrupt from the monitoring processing means (S23), and repeats this determination processing S23 until there is an interrupt. This interruption process occurs when the IC card 3 is inserted again into the card reader / writer 30.

  If there is an interruption from the monitoring processing means (in the case of Yes), the screen saver screen display is stopped (S24), and the processing is terminated.

[Effect of the embodiment]
According to the present system and method, when the IC card 3 as the personal authentication device is removed from the card reader / writer 30, when the screen saver lock is set, if a preset character content is selected with a shortcut key, the screen saver Since the text content selected on the screen is displayed, the user can be identified and the user can know the destination and the status of the PC to the people around him to utilize the message, realizing space saving and paperless. There is an effect that can be done.

Further, according to the present system and method, when the IC card 3 as the personal authentication device is removed from the card reader / writer 30, when the “space” key as the specific key is pressed when the screen saver lock is set, Can be input, and the input character content is displayed on the screen saver screen, so that it is possible to notify the surrounding people of any matter, for example, the return time.
Note that when inputting an arbitrary character, the specific character set as a default value is overwritten and input, so that the use of the specific character has an effect that the input can be efficiently performed.

  Further, according to the present system and method, when the IC card 3 as the personal authentication device is removed from the card reader / writer 30, when the “escape” key as a specific key is pressed when the screen saver lock is set, Since the correspondence between the key and the character content can be referred to, it is possible to reduce the selection error of the character content displayed on the screen saver screen.

  Further, according to the present system and method, code monitoring is performed in the monitoring processing means, the pre-screen saver, and the screen saver to confirm that the program is executed by an appropriate program, so that security can be improved.

  Further, according to the present system and method, when the IC card 3 is inserted into the card reader / writer 30, when the screen saver is released, it is determined whether the IC card is a releasable IC card, and the releasable IC card. If so, since the password input screen is automatically displayed, the screen saver can be smoothly released.

  The present invention can display a character selected arbitrarily by a user or a character arbitrarily input by the user by a simple operation at the time of starting the screen saver in the screen saver activated when the IC card or the like of the personal authentication device is removed. By doing so, it is possible to easily inform the third party of the user's destination, return time, PC status, etc., and it is suitable for the screen saver display method and information processing system that can improve the user's convenience. .

1 is a configuration block diagram of an information processing system according to an embodiment of the present invention. It is the schematic of a display character setting table. It is the schematic of a screen saver setting screen. It is the schematic of the screen showing the correspondence of the character displayed on a key and a screen saver. It is the schematic of the display screen by pressing the space key. It is a flowchart of a monitoring process. It is a flowchart of a pre-screen saver process. It is a flowchart of a screen saver process.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Server, 2 ... Database, 3 ... IC card, 10 ... Processing apparatus, 11 ... Control part, 12 ... Main memory, 13 ... Memory | storage part, 14 ... Interface, 20 ... Display part, 30 ... Card reader / writer, 40 ... Keyboard, 50 ... Network

Claims (6)

A screen saver display method for displaying a screen saver on the display unit of the processing device when the connection of the personal authentication device is not recognized and locking the processing in the processing device,
When a specific key that is set in advance within a specific time after the connection of the personal authentication device is not recognized is displayed, a screen that enables input of arbitrary characters is displayed, and when the input characters are confirmed on the screen, A screen saver display method, wherein the character content is displayed on a screen saver screen, and a default display character is displayed on the screen saver screen if the preset specific key is not input within the specific time.   2. The screen according to claim 1, wherein a predetermined character content is displayed on a screen that allows an arbitrary character to be input, and the input character is entered by overwriting the displayed character content. Screen saver display method.   When the connection of the personal authentication device is recognized, it is determined from the identification information of the personal authentication device whether the screen saver display can be canceled, and if it can be canceled, a password input screen is displayed. The screen saver display method according to claim 1, wherein the process in step S1 is restored. An information processing system that monitors a personal authentication device and locks the processing in the processing device by displaying a screen saver on the display unit of the processing device when the connection of the personal authentication device is not recognized,
If a specific key for displaying a screen that allows arbitrary characters to be input is determined in advance, and if the specific key is input within a specific time without recognizing the connection of the personal authentication device, it is possible to input any character When the input character is confirmed on the screen, the content of the character is displayed on the screen saver screen, and if the preset specific key is not input within the specific time, a default is displayed. An information processing system comprising a control unit for displaying display characters on a screen saver screen.   The control unit presets the character content to be displayed and overwritten on the screen that allows arbitrary characters to be entered, and confirms the input character by overwriting the input character with respect to the character content displayed on the screen. The information processing system according to claim 4, wherein:   When the connection of the personal authentication device is recognized, the control unit determines whether the screen saver display can be canceled based on the identification information of the personal authentication device, and if it can be canceled, displays the password input screen on the display unit, and the entered password 6. The information processing system according to claim 4, wherein the processing in the processing device is restored if it is determined that the password is appropriate and the password is appropriate.

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