| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To keep high security by improving a concealable property as an entire file. <P>SOLUTION: An encryption processing system comprises a file dividing means for dividing transmission data into a plurality of parts, an encryption means for encrypting a part of or all files divided by the dividing means, and a transmission means for transmitting the files encrypted by the encryption means. The dividing means includes a plurality of numerical formulas for division, determines the numerical formula to be used at random, and arbitrarily sets an initial value to determine the dividing position of the file from the numerical formula. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
