| 摘要 |
<p>Scrambling of a content is improved, and false use of a content is excluded. Scramble rules different in contents are applied for content scrambling. For example, when shuffling is applied, various shuffle forms are defined as scramble rules. When an exclusive-OR operation is applied, the value used as exclusive-OR is defined as a scramble rule. When rotation is carried out, the amount of shift is defined as a scramble rule, When 32 shuffle elements are used for shuffling, 32! different shuffle forms, i.e., scramble rules can be defined. The value used as exclusive-OR and the amount of rotation shift can be set to various values, and many scramble rules can be set.</p> |
