A Class Of IPP Codes From The Subspace Of Vector Space

Digital fingerprinting is one of the latest technology to protect multimedia content from illegal copying,and the core concept is to use tracking code to antagnise the pirate's conspiracy attack.IPP codes is a kind of secure frameproof code and can trace at least one pirates.Therefore,the research on the IPP codes is of significant academic value and practical significance.The central subject of studying tracking code is how to construct a class of codes and give the necessary and sufficient conditions for the codes to make them become -IPP( ? 2)code.Based on this,the thesis researched on the following questions.In Chapter 2,the(0,1)matrix is constructed by the relation of the intersection space of the subspace on the vector space,and then a kind of tracking code is constructed by the method of text substitution.In Chapter 3,this chapter focuses on the minimum distance of the code ?(7);9),6),8)),and gets the conclusion in the general case.In Chapter 4,we discussed the parameters and determine the minimum distance of some specific values.In Chapter 5,we discussed the necessary and sufficient conditions for the code?(7);9),6),8))to be 3-IPP codes in some special cases.