| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance the security of personal information and a variety of digital content information by providing and using a random number generation method for acquiring random number information which is less biased and random. <P>SOLUTION: Magnetic domain information generated after a magnetic film 1 has undergone demagnetizing processing by a demagnetizing means 2 is detected by an electric detection means 3 as electric information, and the random information is acquired. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
