| 摘要 |
<p>An object is to enable a discrimination to be made, for each partial data, whether or not saved data, one file of which is composed of a plurality of partial data items and one partial data of which is able to include another partial data, has been unjustifiably reloaded by a person except for a justifiable author. Accordingly, at the time of saving data, the input password and the designated partial data are converted according to a predetermined procedure to generate a first code, and the first code is stored to correspond to the designated partial data; and at the time of reading the saved data, the input password and the designated partial data are converted according to the predetermined procedure to generate a second code, the generated second code is compared with the first code stored to correspond to the designated partial data, and a discrimination is made that the designated partial data has been unjustifiably reloaded if the comparison results in a fact that they are not the same. In a case where the designated partial data includes another partial data, the partial data is included in the target of the code generation, the partial data is omitted from the same or the content of the partial data is not included but only punctuation information is included.</p> |
