Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer
Patent
1997-07-14
1999-07-27
Beausoliel, Jr., Robert W.
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Protection at a particular protocol layer
713201, G06F 1500
Patent
active
059283645
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a secret data storage device that stores various data items, such as addresses, telephone numbers, schedules, and memos, a method of reading secret data, and a recording medium for control programs.
BACKGROUND ART
One known secret data storage device has the secret function which stores the data unwilling to be known to others except for particular users and the important data as secret data and enables the stored secret data to be accessed and read, only when the previously entered user's unique registration password coincides with the user-inputted collation password.
To prevent others from seeing the secret data easily, password data difficult for others to understand is set. In setting the password data, a combination of numbers into a four-digit number or a combination of characters or symbols has been used.
Setting password data in the form of such a combination makes it very difficult for the user to memorize and input the data.
The present invention has been considered to solve the problem with the prior art.
Accordingly, the object of the present invention is to provide a secret data storage device capable of accessing the secret data using a password easy for particular users to memorize but difficult for others to understand, a method of reading the secret data, and a storing medium for control programs.
DISCLOSURE OF THE INVENTION
To accomplish the foregoing object, a secret data storage device of the present invention comprises: data storage means for storing secret data wanted to be secret; first password data input means for inputting a single color data item or a combination of a plurality of color data items as registration password data; password data storage means for storing the registration password data inputted from the first password data input means; second password data input means for inputting a single color data item or a combination of a plurality of color data items as collation password data; coincidence determining means for determining whether or not the collation password data inputted from the second password data input means coincides with the registration password data stored in the password data storage means; and control means for performing control so as to enable access to the secret data stored in the data storage means when the coincidence determining means has determined that they coincide with each other.
With the present invention, the registration and collation password data items are inputted using the color data associated with an image of a color easy for the user to memorize. When these password data items coincide with each other, this enables access to the secret data area.
Furthermore, the secret data storage device of the present invention further comprises: specifying means for specifying any one of a plurality of hieroglyphics; and display means for providing color display of the hieroglyphic specified by the specifying means using a color corresponding to the color data inputted as the registration password data or the collation password data.
With the present invention, it is possible to provide color display of the hieroglyphic specified by the user using the color corresponding to the color data set by the registration password data and the collation password data.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram of the configuration of an electronic circuit according to the present invention;
FIG. 2 illustrates an example of storage in the ROM;
FIG. 3 illustrate an example of storage in the hieroglyphic/character font memory;
FIG. 4 shows an example of storage in the password storing memory;
FIG. 5 shows an example of storage in the password edit memory;
FIG. 6 is a flowchart for the password registration/collation process;
FIGS. 7A to 7F illustrate displaying states produced by the password data registration process;
FIGS. 8A and 8B illustrate displaying states produced by the password data collation process; and
FIG. 9 illustrates an example of the secret data displayed at the tim
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Derwent Publications Ltd., London, England; Database WPI; Section E1, Week 9207, Class T01, AN 92-055712.
Beausoliel, Jr. Robert W.
Casio Computer Co. Ltd.
Elisca Pierre E.
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