JPS6146551A - Password data access system - Google Patents

Abstract

PURPOSE:To make a person who can input a password adds conditions of access possible when a person who cannot input the password accesses data, by providing a means which outputs an arbitrary access inhibiting command to a terminal executing the arbitrary access. CONSTITUTION:An arbitrary password reporting part 2d of a terminal 2 outputs an arbitrary password reportion signal to a terminal 1 to report the password. The terminal 1 outputs the arbitrary password signal from an arbitrary password transmitting part 1e to a control part 4, and an access signal is outputted from the terminal 1 to a storage part 5 through the control part 4, and the arbitrary access is performed, and this execution is displayed on a monitor 2g. A terminal 2 outputs an arbitrary access inhibiting request signal from an arbitrary access inhibiting request signal transmitting part 2f to the control part 4 as required, and an arbitrary access inhibiting part 4d of the control part 4 outputs an arbitrary access inhibiting signal to the terminal 1. Even if this inhibiting signal is outputted before the expiration of the validity time, the terminal 2 inhibits the arbitrary access of the terminal 1.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a data access method in a data communication system,
In particular, it relates to password data access methods.

[Prior art]

Conventionally, in this type of password data access method, input or output of specific data was possible only to a person who could input the password set for that data into the control unit. During communication between a person and another person, if the latter needs to conditionally access some or all of the former's data with the approval of the former, the former will notify the latter of the password. Although the latter allows data access,
The former has the disadvantage that conditions regarding data access cannot be added, and the latter has the disadvantage that there is no means to keep data confidential, whereas the latter recognizes the password for subsequent data access.

FIG. 8 is a block diagram showing a conventional example of such a password data access method, in which there are a plurality of terminals 11 to 13 that access one storage unit 15 via the control unit 14, and each terminal 11 to 18 is a password input section 11a, 12a such as a keyboard.

13a, and the control unit 14 includes a password verification unit 14& that verifies whether the password input from the terminals 11 to 1B matches a password registered in advance.

[Purpose of the invention]

Provides a password data access method that allows a person who can enter the password of the data to add conditions for access when a person who cannot access the data accesses the data, and also maintains confidentiality of the data after accessing the data. It's about doing.

[Structure of the invention]

A password data access method of the present invention includes a plurality of terminals, a data storage section, and a control section that includes a password verification section and controls access from the terminals to data in the storage section. , each terminal specifies the conditions for occasional access that the other terminal attempts to perform when it approves an access request output from another terminal regarding data for which its own terminal has password registered, and means for notifying the other terminal of a password for the data of the occasional access that the other terminal is attempting to perform; and means for displaying the contents of the occasional access that the other terminal is executing. , means for outputting an occasional access prohibition request signal requesting prohibition of occasional access being executed by the other terminal to the control unit, and the password verification unit outputs an occasional access prohibition request signal that requests prohibition of occasional access being executed by the other terminal; A means for outputting the content of the access request to a terminal that has registered a password for the data for occasional access, and a means for outputting an access prohibition command to the terminal executing the occasional access when the occasional access prohibition request signal is input. and a means for outputting.

〔Example〕

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

FIG. 1 is a block diagram showing an embodiment of the password data access method of the present invention. Terminals 1.2.8 are terminals for inputting and outputting data to and from the control section 4, and password input sections 1a to 8a, respectively.

f-p access request units 1b to 8b, occasional access authorization signal transmission units 10 to 82, and occasional password notification units 1t1 to 3
d. Occasional password transmitting units 10 to 3e.

Occasional access prohibition request signal transmitting units 1f to 3f, monitor 1
It has a weight of 8g to 8g. Each password is input in advance from the password input units 1a to 8a and registered.

The data access request units 1b to 8b output to the control unit 4 an access data designation signal Sl that designates a range of data to be accessed, and a write/read selection designation signal S2 that designates writing or reading. The occasional access authorization signal transmitter IC-80 sends access requests issued from other terminals to certain data with a password registered to each terminal 1 to B.
When authorized, the following four types of signals are sent to the control unit 4: an authorized access data designation signal S6 that specifies the range of data to be accessed at any time, writing or reading, respectively, an authorized writing/reading selection designating signal 87, and a password. An optional password designation signal S8 to be designated and a password valid time designation signal S9 to designate a valid time T during which access can be made at any time using this password are output to the control section-4. The occasional password notification units 1d to 8d are
A password notification signal S1t is outputted to other terminals at any time to notify the other terminals of their own passwords that have registered their passwords and issued access requests to certain data. The occasional password transmitting units 18 to 3e send the occasional password notification signal Sl.
When the password transmitted by 1 is received, it is outputted to the control unit 4 by an occasional password signal 812 specifying the password. The occasional access prohibition request signal transmitting units lf to 8f output an occasional access prohibition request signal 815 to the control unit 4, which requests access prohibition to other terminals that are currently accessing data for which a password has been registered. Monitor 1g~
8g displays input/output data and data access contents. The control unit 4 accesses data in the storage unit 5 based on input signals from each of the terminals 1 to 8, and the password verification unit 4
a.

Acceptance signal transmitter 4b, occasional access request content transmitter 4c
, is provided with an access prohibition section 4d at any time.

The password verification unit 4a verifies whether the password input from each terminal 1-8 matches a password registered in advance. The acceptance signal transmitting section 4b is the control section 4
an acceptance signal 83 for confirming that the has accepted each input signal;
810 is output to each terminal 1-8. The occasional access request content transmitter 4C outputs the access data designation signal Sl and write request selection designation signal S2 input from the terminal requesting access to the terminal that has registered the password for the data to be accessed from time to time. . The occasional access prohibition unit 4d outputs an occasional access prohibition signal 8t6 that instructs the terminal executing the occasional access to stop the access.

Next, an example of the operation of this embodiment will be explained.

FIG. 2 is a time chart of an example of operation. During communication between terminal 1 and terminal 2, password input section 2a of terminal 2
It becomes necessary for the terminal l to access certain data for which a password has been registered, and at a time tl, the terminal l outputs an access data designation signal 81 and a write/read selection designation signal S2 from the data access request section 1b to the control section 4. The control unit 4 outputs the acceptance signal S3 from the acceptance signal transmission unit 4b to the terminal 1, and also outputs the contents of the occasional access requested by the terminal 1 from the occasional access request content transmission unit 4C as well as the access data designation signal S4 and writes/reads. Selection designation signal S
5, when the terminal 2 approves the access request of the terminal 1, the occasional access authorization signal transmitter 2C of the terminal 2 sends an authorized access data designation signal S6. Authorized write/read selection designation signal S7. Occasional password designation signal 88
゜The password valid time designation signal S9 is output to the control section 4. The acceptance signal transmitter 4 b of the control unit 4 sends the acceptance signal S10.
Terminal 1 during the valid time T specified by the password valid time designation signal S9 from the time t2 when the password is output to the terminal 2.
can be accessed at any time.

The occasional password notification unit 2d of the terminal 2 outputs an occasional password notification signal S11 to the terminal 1 to notify the password,
The terminal 1 outputs a password signal 8]2 from the password transmitting section 1e to the control section 4 at any time, and an access signal 813 is output from the terminal 1 to the storage section 5 via the control section 4 to perform access at any time.

The contents of the occasional access executed by the terminal l are displayed on the monitor 2g of the terminal 2 by the occasional access monitor signal 814.

Further, if necessary, at time t3, the terminal 2 outputs the access prohibition request signal 81g from the access prohibition request signal transmitting unit 2f to the control unit 4, so that the access prohibition unit 4d of the control unit 4 can access the access at any time. Prohibition signal S16
It is possible for the terminal 2 to output this to the terminal l and prohibit the access of the terminal l at any time even before the time t4 when the valid time T ends.

〔Effect of the invention〕

As explained above, according to the present invention, even if a person who cannot input the password for certain data accesses that data, the person who can input the password for that data can select the range of access data, write/read selection, and enable access. Conditions such as time can be added, and data can be kept confidential after access by specifying a temporary password.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an embodiment of the password data access method of the present invention, Fig. 2 is a time chart showing an example of the operation of the embodiment of Fig. 1, and Fig. 8 is a conventional example of the password data access method. FIG. 1.2, 3: Terminal, 4 2 control unit, 5: Storage unit, 1.2, 3: Terminal, 4: Storage unit, 1.2, 3: Terminal, 4: Storage unit, 1.
b, 2b, 3b: Data access request unit, IC+
20* 8c: Occasional access authorization signal transmitter, l
a, 2a, aa: Occasional password notification section, lθI
2 e + 8 e s occasional password transmission section, 1
f, B, p, t: Any-time access prohibition request signal transmission unit, 1g, 2g, 8g: Monitor, 4a: Password verification unit, 4b = Acceptance signal transmission unit, 4C: Any-time access request content transmission unit, 4d: Any-time access , access prohibition section, S15: Access prohibition request signal at any time. Figure 3

Claims (1)

[Scope of Claims] In a password data access method comprising a plurality of terminals, a data storage unit, and a control unit that includes a password verification unit and controls access from the terminals to data in the storage unit, each terminal specifies conditions for occasional access that the other terminal attempts to perform when the own terminal approves an access request output from another terminal regarding data for which a password has been registered, and outputs it to the control unit. means for notifying the other terminal of a password for the data for occasional access that the other terminal is attempting to perform; means for displaying the content of the occasional access that the other terminal is attempting to perform; means for outputting an occasional access prohibition request signal requesting prohibition of occasional access being executed by a terminal to the control unit, and the password verification unit outputs an access request outputted by a terminal that attempts to perform occasional access. means for outputting the contents of the above to a terminal that has registered a password for the data for occasional access, and outputting an access prohibition command to the terminal executing the occasional access when the occasional access prohibition request signal is input. A password data access method comprising: