JPH10228423A - Electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an owner to optionally set up a secrecy holding level suited to the owner himself (or herself). SOLUTION: The electronic device is provided with a secrecy holding level setting area for setting up a secrecy holding level based on a password. The device is also provided with a state setting area for setting up the state of the device after failing the release of a password at each level and a password input frequency area for setting up password input available frequency at the time of releasing the password. A password can be applied to the whole data, each data and a part of data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device having a password security function.

[0002]

2. Description of the Related Art Electronic devices such as electronic organizers and personal digital assistants have a password security function so that startup of the electronic device and access to data cannot be performed unless a password registered in advance is input. Has become.

[0003] As a technique for setting and canceling a password, Japanese Patent Laid-Open Publication No. Hei 4-361342 and Japanese Patent Laid-Open Publication No. Hei 4-367 are known.
No. 956. This technology allows the user to start the electronic device even if the user forgets the password, and that other people cannot start the device without knowing the password. In the case of this technique, it is determined whether or not the electronic device can be started up only based on whether or not the owner (user) of the electronic device knows the password.

A technique related to data deletion such as resetting is disclosed in Japanese Patent Application Laid-Open No. 63-293664. This is intended to save data other than secret data by deleting only secret data at the first reset and deleting other data at the second reset.

[0005]

The conventional password confidentiality is that only the person who knows the password or knows a specific key operation for releasing the password starts up the electronic device as described above. Was to be able to do. However, when it comes to password confidentiality, owners who absolutely want to keep confidential are not satisfied with established confidentiality levels,
On the other hand, other owners who think that a password is not necessary for starting up the electronic device are inconvenienced by having to perform a troublesome operation to release the password.
As described above, there is a difference in the degree of demand between the individual owners. For example, when the password release fails, there is a desire to automatically turn off and disable the password for a while, or a password for password release. There was a desire that the owner himself wants to set the number of times that can be entered.

Conventionally, when the password is automatically released due to failure in releasing the password, the password input screen for releasing the password is displayed again even when the electronic device is started up again, in accordance with the instruction manual. It was just a uniform state. For this reason, the degree of freedom that the owner can change the confidentiality function so that the owner can use it easily, such as changing the importance of canceling the password, is lacking.
Then, it was impossible to know at all about the history regarding the password release, such as whether the attempt to release the password failed.

Conventionally, in a situation where the owner cannot directly operate the electronic device, when another person needs to view the data of the electronic device, a password is set. When it was necessary to see the data that was present, the owner was asked directly for the password to release the password, otherwise the data with the password could never be seen. That is,
When the password cannot be retrieved, the password cannot be released. Also, if the owner of the electronic device thinks that only a certain person may be able to see the data that sets the password,
You have to take the risk of giving your password,
I was worried that I could keep secrets from anyone other than that person.

Further, conventionally, in consideration of the case where the password is forgotten, a special key operation such that the user can write the password on another memo paper or start the electronic apparatus without the password as described above. Was set by the owner. However, if you lose your note paper,
I had to set a new password again without knowing the previous password again.

[0009] Conventionally, a password is applied to the electronic device itself. Alternatively, all secret data is managed with one password. Therefore, when the password is released, all the data for which the password is set is released, and the degree of freedom corresponding to the difference in confidentiality between the data is lacking.

With respect to data deletion such as resetting, as described in JP-A-63-293664, only secret data is deleted at the first reset, and other data is deleted at the second reset. As a result, data other than secret data was stored. For this reason, for example, if the password is forgotten, the only option is to delete the secret data together with the password and then set a new password.

Conventionally, as in an electronic organizer, a password is set for each data, and it is not possible to set a detailed password such as setting a password for a part of the data, and the degree of freedom for the usability of the owner is not possible. Was few. For example, if you set a password even if you want to display the name and not the phone number only for certain data in the phonebook, the password will be set for all the data and you will only see the name part. There was an inconvenience that I could not do it.

[0012] Conventionally, as in an electronic organizer, a certain
When data was deleted, the entirety of that one data was deleted. Therefore, if one data is erased by mistake,
The security of data retention for a part of the data was not guaranteed. Also, if you try to delete one data, the entire contents of the data will be deleted, so if you try to delete a part of the data, you have to correct the data, and it will be difficult to operate in that only a part of the data will be left. There was inconvenience.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the related art, and has as its object to provide an electronic device that allows an owner to freely set a level of confidentiality suitable for himself.

Another object of the present invention is to make the input of a password an absolutely indispensable condition when the electronic device is restarted in a state where the password cannot be released, to proceed only by a certain key operation, or to input a password without being input. In order to allow the owner to freely change the importance of the password, for example, to proceed, the method of setting up the electronic device when the password cannot be released is set.

Another object of the present invention is to allow an owner to know information such as an input password, time, device status, and the like when another person attempts to release a password and fails to operate the electronic device. The purpose is to provide information to the owner for reference when setting or for taking measures to prevent the password from being broken.

Another object of the present invention is to allow only a person who considers that the owner of the electronic device may be able to view the data to which the password is set to be able to release the password only by inputting the name, for example. Thus, it is possible to set and change the importance of the password for a person other than himself.

Another object of the present invention is to provide a temporary display of the password by a special key operation which can be set by the owner in consideration of a case where the set password is forgotten, and to set a new password again. This is to eliminate the troublesome operation of doing it.

Another object of the present invention is to enable individual passwords to be set for individual data so that data having a high level of confidentiality is distinguished from other secret data.

Another object of the present invention is to set a password for each data in consideration of an unexpected situation such as when the password is forgotten or when the data is deleted by pressing the reset key by mistake. In this way, even when data is deleted, data for which a password is individually set is not deleted.

Another object of the present invention is to enable a password to be set for a part of one data.
Another object of the present invention is to prevent a part of data from being displayed if a password is set for the part without releasing the password. Another object of the invention is to guarantee data retention for a part of the data.

[0021]

In order to achieve the above object, an electronic device having a password security function according to the present invention provides a password security level and a state of the electronic device after a password release failure. Has a function to set. More specifically, for example, a security level setting area for setting a security level with a password is provided. Further, for each of the levels, a state setting area for setting the state of the electronic device after the password release has failed, and a password input count area for setting the number of times a password can be input when releasing the password are also provided.

According to the present invention, since the owner of the electronic device can arbitrarily set the level of confidentiality, it becomes possible for the owner to freely make settings that are easy to use for himself or herself in some cases.

Further, the electronic device having a password security function according to the present invention has a function of automatically turning off the power when the release of the password fails and a function of setting a method of starting the device thereafter. Features. That is, if the password is set to turn off automatically if the password release fails, the next time you turn on the power, you will be asked for the password again, or only by a special key operation Or an ON state setting area for setting a state when the power is turned on after a password release failure, such as whether the power can be turned on but the secret data cannot be viewed.

For this reason, when the password release fails, it is possible to freely set how seriously the situation of the password release failure is seen by changing the state when the electronic device is started up again.

Further, the electronic device having a password security function according to the present invention has a function of automatically turning off the power when the password release fails, and a memory for storing the date and time when the password release failed and the entered password. And a region. Specifically, for example, a password release time area for storing a time when a password is input is provided, and an input password content area for storing all passwords input for password release is provided. Further, a mode area for storing a mode in which the password is to be released can be provided.

By providing the owner with an input password when the password release fails and information on the mode and time at that time, the owner does not need to input the same password the next time the password is released. I'm sorry. Also, if another person tries to release the password without permission and fails, knowing the state at that time can be used as a reference when setting a new password.

Further, the electronic device having a password security function according to the present invention has a storage area for storing a plurality of passwords, and a function for releasing a password by inputting any one of the plurality of passwords. It is characterized by. At least one of the plurality of passwords may be the name of a person to whom the owner allows access. In this case, by providing the release name storage area, it is possible to release the password only by inputting the name of the person who wants to release without knowing the password. Further, the release name code may be set at the time of data storage so that a password by inputting a name can be set for each data.

According to the present invention, a person who is authorized to view password-protected data by the owner can enter the password-set data simply by inputting his / her name without knowing the password. You will be able to see it. However, since he did not give his password, he was not worried about keeping confidential from anyone else. It is also possible to set such that the cancellation of the password by inputting the name is specified not for all data to which the password is set but for a part of the data.

Further, the electronic device having a password security function according to the present invention has a storage area for storing a specific key operation and a function for temporarily displaying a password when the specific key operation is performed. It is characterized by the following.
The specific key operation can be stored in a key operation storage area. According to the present invention, even if the owner forgets the password, the password can be seen for a moment by the key operation set by the owner.

Further, the electronic device having a password security function according to the present invention is characterized in that it has an area for storing a password applied to the entire data and an area for storing an individual password applied to each data. Specifically, for example, an individual password setting area is provided so that a password can be set for each data. When an individual password is set for a certain data, an individual password code is provided so that the individual password is set when the data is registered, and is stored in the data storage area together with the contents of the data. To do.

If only the password set for the entire data is used, the password may be released. However, according to the present invention, since a password can be set for each data, it is possible to increase the degree of secrecy for very important data as compared with other data.

Further, the electronic device having a password security function according to the present invention has a function of erasing data other than the data for which the individual password is set among the stored data when resetting is performed. It is characterized by the following.

According to the present invention, when an attempt is made to delete data by an operation such as resetting, if there is data having an individual password code in the data in the data storage area, the data is not deleted without being deleted. Perform processing to leave the information in the storage area. Therefore, even in situations where you do not want to delete secret data but have forgotten your password because you have forgotten it, or when you have accidentally pressed the reset key, data for which a password has been individually set will be deleted. Nothing.

Further, the electronic device having a password security function according to the present invention is characterized in that it has a storage area for storing a partial password applied only to a part of data. That is, a partial password setting area is provided so that a password can be set for a part of the data.
To specify the part of the data to which the password is applied,
This can be done by providing a partial password code at the beginning and end of the part where the partial password is set, and storing it in the data storage area together with the data content at the time of data registration.

Further, the electronic device having a password security function according to the present invention has a function of not displaying a portion to which the partial password is applied when an operation for displaying data is performed in a state where the partial password has not been released. It is characterized by having. Specifically, when the partial password has not been released, if there is data with a partial password code in the data storage area, the data content between the first partial password code and the next partial password code Is performed so that is not displayed.
If the partial password code is different from the character code, the process of determining which portion is not to be displayed can be performed quickly, and the display process can be performed quickly.

Further, the electronic device having a password security function according to the present invention has a function of not deleting the part to which the partial password is applied when the operation to delete the data to which the partial password is applied. It is characterized by the following. Specifically, if there is data with a partial password code in the data in the data storage area when data is to be deleted, the data content between the first partial password code and the next partial password code is Processing is performed to leave the data in the data storage area. Also in this case, if the partial password code is set to a code different from the character code, the process of determining which portion should not be deleted can be performed quickly, and the deletion process can be performed quickly.

According to the present invention, even if a situation occurs where data is accidentally erased, the entire data can be accidentally erased simply by setting a password in a part that is never to be erased. Disappears. In addition, when a part of the data is to be deleted, there is no need to perform a time-consuming operation such as editing and correcting the data and deleting the part, and only by deleting the one data, the password is set. It is possible to erase the part other than the part where it exists.

[0038]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a system diagram of an example of an electronic device according to the present invention.

The CPU 13 is connected to the user's keyboard 14
It operates in accordance with a program preset in the program ROM 15 in accordance with the input to. Program ROM1
5 are stored in the data storage RAM 16 connected to
Various information as shown in FIG. Also, CP
U13 controls the display RAM 12, and the display device 1
1 displays data stored in the display RAM 12.

The keyboard 14 has mode selection keys, "0-9" and "A" for inputting characters such as alphanumeric characters and kana.
~ Z ", a search key indicated by a white triangle for accessing the previous data or the next data, a scroll key indicated by a black triangle, displayed on the display. Enter key to confirm character input and selection, partial password key to set password for part of data, individual password key to set password for each data, display password in a certain procedure The system includes a password key used when the password is set, a start key and an end key for indicating a setting position of the partial password, an ON key used for turning on the power, and an OFF key used for turning off the power.

In the example shown, the mode selection key is a key for entering a schedule mode for writing and reading the schedule of the electronic device, a key for entering a clock mode for displaying the date and time, and a memo mode for writing and reading a memo. And a key to enter a telephone directory mode for writing and reading telephone numbers.

FIG. 2 shows details of the secrecy level setting area provided in the data storage RAM 16. The confidentiality level setting area is an area for storing information when a user sets a state so that the confidentiality level of the electronic device can be changed. In this area, security levels are numbered, and a "security level area" for storing the number and a security level to be selected are managed by numbers 0 (unselected) and 1 (selected). “Selection area”, “state setting area” (0: not set, 1: set) for setting the state of the electronic device after a password release error, and the allowable number of password input times according to the level of confidentiality. A "password input count area" for storing numbers is included.

In the "selection area", only one of a plurality of set security levels is set to "1" and is selected. The figure shows a state in which the security level “1” is selected. The “state setting area” has four items of “ON”, “password”, “mode”, and “OFF” in the example of FIG. When the item “ON” in the status setting area is set (when “1” is set), the power of the electronic device remains ON even if an incorrect password is input. On the other hand, when the item “ON” is “0” and is not set, if an incorrect password is input, the power of the electronic device is turned off at that time. Therefore, once the password input has failed, the user must start the operation of turning on the power of the electronic apparatus in order to restart the password input. When the item “Password” is “1”,
If you enter an incorrect password, you will be prompted to enter the password again. If the item "mode" is set to "1" and the password release fails, an initial screen for mode selection is displayed. If the item “OFF” is set to “1”, the power supply of the electronic device is turned off when an incorrect password is input continuously exceeding the number of times set in the password input count area. To

Referring to the example stored as shown in FIG. 2, when the confidentiality level is 0, when an erroneous password is input, that is, after the password release has failed, the mode is not changed. The number of times that the initial screen is displayed and the password can be entered is three times. In other words, this is a setting in which confidentiality is not given much importance. In the case where the selected security level is 1, if the password release fails, the password is again asked, and the number of times the password can be entered is three times. "OF
Since “F” is “1”, in this case, if the third password release fails, the power of the electronic device is automatically turned off. For confidentiality level 2, the item "OF
F "is" 1 "and the allowable number of times of input set in the" password input count area "is one.
It can be said that the setting is extremely highly confidential.

The ON state setting area shown in FIG. 3 is set to be automatically turned off due to failure of password release (when “ON” is “0” or “OFF” is “1”). This is an area for storing the setting of the state in which the electronic device is started when the ON key is input after OFF. This area includes a state area storing a state when the electronic device is started up and information indicating whether each state is set or not (0: not set,
1: setting). "ON"
Is set to "1", the electronic device is powered on. When the “password” is “1”, the user is prompted to enter a password. If the "password" is "0", the password is not input. When "Key operation" is "1", the electronic device is turned ON only when a specific key operation is performed.
It is possible to If the “secret data” is “1”, the secret data cannot be viewed. In the setting example shown in FIG. 3, the power of the electronic device is turned on when the electronic device is started up, but the secret data cannot be viewed.

FIG. 4 shows a password release information storage area which stores a state when an attempt was made to release the password but failed. This area is a password release time area that stores the time you tried to release the password, an input password content area that stores the entered password, and a mode that stores the mode you tried to release Have an area.

In the example shown in FIG.
At 23:59 a day, there is stored evidence that the password was to be released. At this time, the content input as the password is AAA, and the mode at that time is the telephone directory mode. Further, information is stored that the password release in the memo mode failed at 0:01 on January 1, 1997, and that the content was input as a password and the content was ABC at that time.

The release name storage area shown in FIG. 5 stores the name of a specific person so that the password can be released only by inputting his / her own name without inputting the password. Is an area for storing.
In the illustrated example, Ikeda and Nishioka simply enter "ikeda" or "nisio" without entering a password.
It is set so that the password can be released only by inputting "ka" and one's own name.

The key operation storage area shown in FIG. 6 is an area for storing the key operation so that the password is displayed for a moment by a specific key operation even if the password is forgotten. This area has an operation number area indicating the order in which the keys were pressed by numbers, and a key content area for storing what keys were pressed.

In the illustrated example, "K", "A", "Z",
When a key operation is performed in the order of "U" and "password", the password is set to be displayed for a moment. Therefore, if you forget your password,
By operating the keys in the order of "K", "A", "Z", "U", "password", the password can be known.

FIG. 7 shows an example of a data storage area of a telephone directory. As shown in FIG. 7A, the data storage area includes a release name setting area for storing a release name that replaces a password, an individual password setting area for storing an individual password when a password is set for each data, and a data storage area. It has a partial password setting area for storing a partial password to be set partially, and a data content storage area for storing data contents. FIG. 7B shows the structure of data stored in the data storage area. Each data and a release name, an individual password, and a partial password for the data are stored in association with each other. In the example of FIG.
For the data shown in FIG. 7B, "123" is stored as the individual password, "ikeda" is stored as the release name, and "ABC" is stored as the partial password.

The data structure will be described with reference to FIG. First, at the head of the data, there is a data head code "00" which can be called a delimiter between data. Then, a release name code indicating whether the data can be released by simply inputting the name of a specific person instead of the password is stored. When the release name code is "FD", it indicates that the password can be released by inputting the name of a specific person, and when the release name code is "F0", it is not set so that the password can be released by inputting the name. Show. In the example of FIG. 7, "FD" is stored as the release name code, so this data can be released by inputting the name of a specific person instead of the password.

After the release name code, an individual password code indicating whether or not an individual password code is set in the data is stored. When the individual password code is "FE", an individual password is set for the data, and when the individual password is "F0", no individual password is set. In the example of FIG. 7, an individual password is set. When deleting all data, etc., determine whether there is an individual password,
If there is an individual password, the data is not deleted.

Thereafter, the name data “kazunori”
ikeda ”, two partial password codes“ FF ”
Number data "0120-111-123"
4 "and workplace data" ○ @ company ". When a partial password is set in a part of the data, as shown in this example, the partial password is placed before the first character in which the partial password is set. The code "FF" is stored, and the partial password code "FF" is also stored after the last character in which the partial password is set.
The data sandwiched between is not deleted.

In the partial password position storage area of FIG. 8, the start position and the end position of the data in which the partial password is set are stored as relative addresses from the first character of the data. In the example shown here, as shown in FIG. 7B, the first partial password code of the data stored in the data storage area is located at the fifteenth character from the first character "K". 15 is stored at the start position of the storage area. Similarly, the number of characters 27 from the data first character “K” to the next partial password code
Is stored in the end position.

In order to access the telephone directory data shown in FIG. 7B, a normal password or a release name code "ikeda" must be input, and an individual password "123" must be input. With these two inputs, the user can access the name data “kazunorikeda” and the workplace data “△ @ company”. Further, to access the telephone number, it is necessary to input a partial password "ABC". In other words, in this example, in order to view all data, a normal password or three kinds of passwords, that is, an unlock name code, an individual password, and a partial password must be entered, and the degree of confidentiality is set extremely high. I have.

FIG. 9 is a flowchart for setting a state when a password is released. First, it is determined in step 101 whether or not the password is being released. If the password is being released, the process proceeds to step 102 to perform a password input process. If the password has not been released in step 101, the flow advances to step 108 to perform other processing unrelated to the password processing. After the password input process in step 102, it is determined in step 103 whether the password release has failed. If the password release has not failed, the process proceeds to step 108, where other processes unrelated to the password process are performed. If the password release fails, the process proceeds to step 104.

At step 104, it is determined whether or not the user has set the security level. If the security level has not been set, step 10
The process proceeds to step S8, and other processes are performed. If the confidentiality level is set, the process proceeds to step S105. In step 105, it is determined whether or not the password has been input the number of times set in the password input count area of FIG. 2, and if the password input count does not exceed the set count, the process returns to step 102. Perform the password input process again.

If the number of times the password has been entered exceeds the set number of times, if the state set in the state setting area shown in FIG. Otherwise, to step 107. In step 107, the next state is set according to the state of the state setting area with respect to the security level set in the security setting area of FIG. For example, when the confidentiality level in FIG. 2 is 0, “OFF” is set to “0” and “mode” is set to “1”, so that the mode initial screen is displayed.

In step 109, the password release time, the input password, and the password release mode are stored in the password release information storage area of FIG. Next, proceeding to step 110, it is determined whether or not there is an input of an ON key. If there is no input of the ON key, the process proceeds to step 108 to perform other processing unrelated to the password processing. , Step 1
Proceeding to 11, the state after ON is determined according to the state set in the ON state setting area in FIG. For example, in FIG. 3, the setting area of “password” in the status area is “1”.
Starts with entering a password.

FIG. 10 is a flowchart relating to data registration, deletion, and display processing when a partial password is set. First, in step 201, it is determined whether the data is being input or being corrected. If the data is being input or being corrected, the process proceeds to step 202. If not, the process proceeds to step 213 to determine whether the data is being deleted or displayed. I do. Step 20
In step 2, key wait processing is performed. If there is no key input, the key wait state is continued. In step 203, it is determined whether or not the partial password key has been input. If the partial password key has not been input, the flow proceeds to step 209 to perform other processing. If the partial password key has been input, the flow proceeds to step 204.

In step 204, the screen shifts to the partial password input screen, and the characters input as the partial password are stored in the partial password setting area of FIG. Next, it is determined in step 205 whether or not a start key has been input.
Proceeding to step 9, other processing unrelated to the password processing is performed.
Proceed to. In step 206, information as to what character from the beginning of the data is the start of the partial password is stored in the start position area of the partial password position storage area in FIG. Next, in step 207, it is determined whether or not there is a cursor key input. If there is a cursor key input, the process proceeds to step 208, and if there is no cursor key input, the process proceeds to step 210. Step 20
In step 8, information indicating the position of the character at the cursor position from the beginning of the data is stored in the end position area of FIG. If there is no cursor key input in step 207, the process proceeds to step 210, where it is determined whether an end key has been input. If the end key has been input in step 210, the process proceeds to step 211, and if the end key has not been input, the process proceeds to step 209 to perform other key processing. In step 211, the partial password code is stored before the character at the start position of the partial password (the value of the start position area in FIG. 8). Similarly, in step 212, the partial password code is added after the character at the end position of the partial password. Is stored in the data storage area together with the data contents.

In step 213, it is determined whether data is being deleted or displayed. If the data is not being deleted or displayed, the flow advances to step 214 to perform other processing unrelated to the password processing. If the data is being deleted or displayed, the flow advances to step 215 to change the partial password code in the data storage area. Search for. Then, in step 216, the next partial password code is searched. Next, proceeding to step 217, it is determined whether or not data is being deleted.
Proceeding to 8, the data from the first partial password code to the next partial password code is left in the data storage area. If the determination in step 217 is NO, that is, if data is being displayed, the flow advances to step 219 to determine whether or not the partial password has been released. As a result, if the partial password has been released, step 22
Proceeding to 1, the entire data including the data to which the partial password is applied is displayed. On the other hand, if the determination in step 219 is NO, the process proceeds to step 220, and processing is performed so that data from the first partial password code to the next partial password code is not displayed.

[0064]

According to the present invention, the user can set any setting of the confidentiality relation in the electronic device.
The electronic device can be set to be easier to use according to the situation at the individual level such as a place.

[Brief description of the drawings]

FIG. 1 is a system diagram of an example of an electronic device according to the present invention.

FIG. 2 is a diagram showing details of a security level setting area provided in a data storage RAM.

FIG. 3 is an explanatory diagram of an ON state setting area.

FIG. 4 is an explanatory diagram of a password release information storage area.

FIG. 5 is an explanatory diagram of a release name storage area.

FIG. 6 is an explanatory diagram of a key operation storage area.

FIG. 7 is a diagram showing an example of a data storage area of a telephone directory.

FIG. 8 is an explanatory diagram of a partial password position storage area.

FIG. 9 is a flowchart for setting a state when a password is released.

FIG. 10 is a flowchart relating to data registration, deletion, and display processing when a partial password is set.

[Explanation of symbols]

11 display device, 12 display RAM, 13 C
PU, 14 ... keyboard, 15 ... program RAM, 1
6. Data storage RAM

Claims (10)

[Claims] 1. An electronic device having a password security function, wherein the electronic device has a function of setting a password security level and a status of the electronic device after a failure in password release. 2. An electronic device having a password confidentiality maintaining function, which has a function of automatically turning off the power when the release of a password fails and a function of setting a method of starting up the device thereafter. Electronic devices. 3. An electronic apparatus having a password confidentiality protection function, comprising: a function for automatically turning off the power when a password release fails; and a storage area for storing the date and time when the password release failed and an input password. An electronic device, comprising: 4. An electronic apparatus having a password security function, comprising: a storage area for storing a plurality of passwords; and a function for releasing a password by inputting one of the plurality of passwords. Electronic devices. 5. An electronic apparatus having a password security function, comprising: a storage area for storing a specific key operation; and a function for temporarily displaying a password when the specific key operation is performed. Electronic device. 6. An electronic device having a password security function, comprising: an area for storing a password applied to the entire data; and an area for storing an individual password applied to each data. 7. The electronic device according to claim 6, wherein a function of erasing data other than the data for which the individual password is set out of the stored data when resetting is performed. 8. An electronic device having a password confidentiality maintaining function, wherein the electronic device has a storage area for storing a partial password applied only to a part of data. 9. The electronic device according to claim 8, wherein when an operation for displaying data is performed in a state in which the partial password has not been released, a function of not displaying the part to which the partial password is applied is provided. . 10. The electronic device according to claim 8, wherein the electronic device has a function of not deleting the portion to which the partial password is applied when an operation to delete the data to which the partial password is applied is performed. .