Patent EA-000725-B1 (EA)
Title: Secret data storage device, secret data reading method, and control program storing medium
Inventor: YAMAMOTO HIROSHI
IPC: G07C9/00
Filed: 1997-08-29
Abstract: 1. A secret data storage device comprising: data storage means for storing secret data; wanted to be secret; first password data input means for inputting on of a single color data item and 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 one of a single color data item and a combination of a plurality of color data items as collation password data; coincidence determined means for determined whether or not the collation password data inputted from the second password data input means coincides with the registration password data stored in said password data storage means; and control means for performing control so as to enable access to the secret data stored in said data storage means when the coincidence determined means has determined that they coincide with each other. 2. A secret data storage device according to claim 1, further comprising: 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 said registration password data or said collation password data. 3. A secret data storage device comprising: data storage means for storing secret data wanted to be secret; first password data input means for causing at least one color data item to correspond to one of at least one character data item and at least one image data item and inputting the color data item 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 causing at least one color data item to correspond to one of at least one character data item and at least one image data item and inputting the color data item as collation password data; coincidence determined means for determined whether or not the collation password data inputted from the second password data input means coincides with the registration password data stored in said password data storage means; and control means for performing control so as to enable access to the secret data stored in said data storage means when the coincidence determining means has judged that they coincide with each other. 4. A secret data storage device according to claim 3, further comprising: 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 said registration password data or said collation password data. 5. A secret data reading method of performing control so as to read stored secret data on a program-controlled computer, comprising: the secret data storage step of, when the user inputs the secret data, storing the inputted secret data; the first password data input step of inputting one of a single color data item and a combination of a plurality of color data items as registration password data; the password data storage step of storing the registration password data inputted in the first password data input step; the second password data input step of inputting one of a single color data item and a combination of a plurality of color data items as collation password data; the coincidence determined step of determining whether or not the collation password data inputted in the password data input step coincides with the registration password data stored in said password data storage step; and the control step of performing control so as to enable access to the secret data stored in said data storage step when the coincidence determining step has judged that they coincide with each other. 6. A method of performing control so as to read stored secret data wanted to be secret on a program-controlled computer, comprising: the first password data input step of causing at least one color data item to correspond to one of at least one character data item and at least one image data item and inputting the color data item as registration password data; the password data storage step of storing the registration password data inputted in the first password data input step; the second password data input step of causing at least one color data item to correspond to one of at least one character data item and at least one image data item and inputting the color data item as collation password data; the coincidence determining step of determining whether or not the collation password data inputted in the second password data input step coincides with the registration password data stored in said password data storage step; and the control step of performing control so as to enable access to the secret data stored in said data storage step when the coincidence determining step has determined that they coincide with each other.