| 摘要 |
PROBLEM TO BE SOLVED: To provide a program capable of appropriately preventing keyword estimation.SOLUTION: The program makes a computer 2 perform processing of transmitting an encryption keyword to a server computer 1, referring to a storage section of the server computer 1 in which a plurality of combinations of encryption keywords and encryption data corresponding to the encryption keywords are stored by being grouped into a plurality of groups, extracting a group corresponding to a received encryption keyword, when a plurality of pieces of encryption data belonging to the group is transmitted, receiving the plurality of pieces of encryption data, decrypting the received encryption data, and obtaining data corresponding to the transmitted encryption keyword.SELECTED DRAWING: Figure 1 |
