| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a data sharing system, a data sharing method and a program for making it impossible to specify which data is shared between clients even when the state of data access is observed by a third person.SOLUTION: When pieces of writing shared data stored in a storage element are written in a virtual storage area, the pieces of data of generated addresses are read to an access area, and the read data are overwritten with the writing shared data, and the overwritten data are converted into the other data, and the pieces of converted data are written in the generated addresses. When the pieces of writing shared data registered in the virtual storage area are read, the pieces of data of the generated addresses are successively read to the access area, and inversely converted, and whether or not the pieces of converted data are desired writing shared data is confirmed until the desired writing shared data are detected such that the desired writing shared data are acquired, and at least reading shared data corresponding to the desired writing shared data are converted into the other data, and the converted data are written in the generated addresses.</p> |
