DIGITAL DATA WORK, DIGITAL DATA WORK PROCESSING METHOD, DIGITAL DATA WORK PROCESSOR, AND MEDIUM FOR RECORDING DIGITAL DATA WORK PROCESSING PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a digital data work processing method which embeds security data in a digital data work and can easily judge whether or not it is illegally copied. ;SOLUTION: This digital data work processor 100 consists of an automaton producing means 3, a security data inputting means 4, a converting means 5 which converts a bit array of security data inputted from the means 4 into the array of each vertex part of an expanded automaton by using the expanded automation that is selected, a conversion digital data arranging means 8 which converts each vertex part into the array of sequential conversion digital data in the order of an array by using conversion code digital data 6 that respectively belongs to each vertex part which is stored in a conversion code digital data storing means 7 and a security data embedding means 9 which embeds the data 6 in a part of each bit data constituting a work.;COPYRIGHT: (C)1999,JPO