| 摘要 |
PROBLEM TO BE SOLVED: To provide a pair key and a pair key constitution method for preventing unauthorized key opening of plural basic softwares by one key opening software. SOLUTION: The relation of a cipher lock 12a provided inside the basic software 11a registered to a prescribed hardware 1a beforehand and the key opening software 2a provided with a cipher key 21a for opening an application inside the basic software 11a closed by the cipher lock 12a is provided. In the relation the cipher lock 12a is opened by loading 100 the key opening software 2a to the hardware 1a, the form of the cipher lock and the cipher key is changed accompanying loading 100 and a new pair key is constituted of the updated cipher lock 12b and cipher key 21b. By the constitution, by the key opening software other than the new pair key, the operation of the basic software is not permitted. |
