| 摘要 |
<p>PROBLEM TO BE SOLVED: To protect individual privacy associated with personal data of patients, etc., treated in facilities associated with medical care and allow processing analysis and statistics of the data of the patients, etc. SOLUTION: An encrypting method includes a selecting process for selecting a field corresponding to an item capable of identifying an individual in a personal data file including personal records comprising a plurality of the fields having the personal data encoded, digitized and converted into text in unified format item by item, a partially encrypting process for encrypting the selected field by using the first public key, not encrypting unselected fields and producing a partially encrypted file, a wholly encrypting process for encrypting the partially encrypted file and producing a wholly encrypted file and a wholly decrypting process for decrypting the produced wholly encrypted file and reproducing the partially encrypted file.</p> |
